JPH0244460Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is a terminal holding mechanism of a connector housing, specifically, a connector housing in which a double locking wall is provided on the wall of an assembly forming block such as a relay block. The present invention relates to a terminal holding mechanism for improving the holding force of a terminal inserted into each housing when more than one terminal is provided.

[Conventional technology]

Recently, in order to further improve the holding power of terminals that are primarily secured to connector housings (hereinafter simply referred to as housings) by ordinary means such as lances,
A housing in which a double locking wall is provided on the wall has been developed and used. In addition, the number of cases in which one or more housings provided with such double locking walls are arranged and used in a collective forming block is increasing.

That is, as shown in FIG. 3, for example, when the assembly forming block 1 connected to the wire harness W is a relay block, the housing 3 of the circuit breaker part 2 which is integrally molded
and a housing 5 of a removable cassette connector 4 are provided adjacent to each other, and the housings 3 and 5 have a double locking wall on the wall as shown in detail in FIGS. 4 and 5. What is provided is being used. However, there are various methods of providing a double locking wall on the wall, and the housing 3 shown in FIG.
A protrusion 7 on the inner surface and lock receiving members 8 on both side edges are attached via a hinge 6 provided on the upper part of the wall portion (front wall in the case of illustration) in a direction perpendicular to the terminal insertion direction.
A double locking wall 9 provided with a locking member 9 is provided so as to be openable and closable with respect to an open portion 10 of the wall portion 3a, and a lock protrusion 11 into which a lock receiving member 8 is locked is formed on the wall portion 3b.

The double locking of the terminal to the housing by the double locking wall 9 is performed as follows. That is, the double locking wall 9 is locked by the engagement of the lock protrusion 11 and the lock receiving member 8, and the housing 3 is locked.
6, the protrusion 7 formed on the inner surface is first locked into the housing 3 by a conventional method (not shown).
The lower edge 1 of the convex electrical contact portion 12 of the female terminal T
This is done by being locked to 2a.

The housing 5 of the cassette connector 4 shown in FIG. A double locking wall 16 with a protrusion 14 on the inner surface and a lock receiving member 15 on the free end is provided so as to be openable and closable with respect to the opening 17 of the wall portion 5a, and a lock receiving member 15 is provided on the side wall 5b.
A lock protrusion 18 is formed to which the lock is locked. The double locking of the terminal to the housing by the double locking wall 16 is performed as follows. That is, the double locking wall 16 is locked by the locking protrusion 18.
When the terminal T is locked and fixed to the housing 5 by engagement with the lock receiving member 15, the protrusion 14 formed on the inner surface is inserted into the rear end of the convex electrical contact portion 12 of the terminal T as shown in FIG. This is done by being locked to the edge 12a.

[Problem that the invention attempts to solve]

However, if a large external force such as pulling in the direction of arrow A is applied to the terminal T inserted into the housing 3 or 5 through the connected electric wire W, the electrical contact portion 12 of the terminal T will become engaged. Force is applied to the stopped protrusion 7 or 14, and the double locking wall 9 or 1
6 deforms to the dashed-dotted position 9' or 16', the protrusion 7 or 14 may disengage from the electrical contact part 12, causing the terminal to come off backwards.
Even with the double locking wall, there is still a problem in that the holding force of the terminal is low.

The present invention has been developed by focusing on this problem, and when one or more housings each having a double locking wall on the wall are installed in the assembly block, it is possible to insert the housing into each housing. It is an object of the present invention to provide a terminal holding mechanism that can simultaneously improve the holding force of a fixed terminal by simple means.

[Means for solving problems]

The present invention will be described in detail below based on drawings showing embodiments.

Fig. 1 is a perspective view of the terminal holding mechanism of the present invention, and Fig. 2 is a perspective view of the terminal holding mechanism of the present invention.
The figure shows a sectional view taken along the line AA in FIG. 1 after the present invention is assembled.

In the figure, the terminal holding mechanism of the present invention has double locking walls 9 and 16 provided with double locking protrusions 7 and 14 on the inner surface for the terminal T that is primarily locked in the housing.
is a housing in which one or more double locking connectors 2, 4, which are provided on the walls 3a, 5a of the housings 3, 5 via hinges 6, 13 so as to be openable and closable, are arranged in the assembly forming block 1. In the terminal holding mechanism (see FIGS. 4 and 5), the assembly forming block 1 facing the double locking walls 9, 16 of one or more double locking connectors 2, 4 or the opposing double locking wall 9,
16 (9 in the case shown), a double locking wall 9,
Ribs 19 and 21 for preventing the opening of the double locking walls 9 and 16 are provided approximately at right angles to the double locking walls 9 and 16.

In the above configuration, the configuration of the housing 3 and the double locking wall 9 excluding the ribs 19, and the configuration of the housing 5 and the double locking wall 16 are the same as the housing shown in FIGS. 4 and 5. Yes, but 2
The configuration of the heavy locking wall 9 or 16 is not limited to each housing, and may be other than those described above. FIG. 1 also shows the housing 5 removed from the assembly block 1. In addition, when the double locking walls provided on the housings do not face each other between adjacent housings and face the fitting wall 1a of the assembly forming block 1, the double locking wall 21 is double locked to the fitting wall 1a. This is a rib provided so as to contact the wall 16 at a substantially right angle.

[Effect]

In FIG. 1 and FIG. 2, first, the housing 3
The terminal T to which the electric wire W is connected is first locked by a conventional method, and then the double locking wall 9 is closed to the open part 10 of the wall 3a via the hinge 6, and the lock receiving member 8 is closed.
is locked and fixed to the lock protrusion 11, and the protrusion 7 on the inner surface is engaged with the rear edge 12a of the electrical contact part of the terminal T. Next, connect the terminal T to which the electric wire W is connected in the same way.
Next, the double locking wall 16 is closed to the open portion 17 of the locked housing 5 via the hinge 13 as shown in FIG.
8, and as shown in FIG. 2, the protrusion 14 is engaged with the rear edge 12a of the electrical contact portion of the terminal T.

Next, this housing 5 is fitted into a predetermined position of the assembly forming block 1 so that the double locking wall 16 faces the double locking wall 9 of the housing 3, thereby completing the assembly of the present invention. In this assembled state, the ribs 19 protruding from the outer surface of the double locking wall of the housing 3 come into contact with the outer surface of the double locking wall 16 of the opposing housing 5. Also, housing 5
To prevent the double locking wall 16 provided on the rear wall side from deforming, the assembly forming block 1 is protruded to a height that faces the fitting hole 20 of the housing 5 and abuts the outer surface of the double locking wall 16. This is done by the provided ribs 21.

In this state, if an external force in the direction of arrow A is applied to the terminals T inserted into the housings 3 and 5 through the electric wire W, the double locking wall 9
Or even if 16 tries to deform to the position 9' or 16' shown by the dashed line, the ribs 19 and 21 press perpendicularly against the double locking walls 9 and 16, so that deformation is simultaneously prevented. , housings 3 and 5
The holding force of the terminal T inserted into the terminal T can be further improved.

Also, a double locking wall 9 for the housing 3 or 5
Or if 16 lock is incomplete, housing 5
Since the double locking wall 16 collides with the rib 19 or 21 and is blocked when it is fitted into the assembly forming block 1, it also has the effect of making it easy to find.

[Effect of idea]

As explained in detail above, according to the terminal holding mechanism of the present invention, at least one
This makes it possible to further improve the terminal holding force against the housing when two double locking connectors are arranged adjacent to each other, and also makes it easier to prevent incomplete locking of the double locking wall formed on the housing. This provides advantages such as being able to be discovered in

[Brief explanation of the drawing]

Figure 1 is a perspective view of the terminal holding mechanism of the present invention, Figure 2 is a perspective view of the terminal holding mechanism of the present invention;
The figures are a sectional view taken along the line A-A in Fig. 1 after assembly of the present invention, Fig. 3 is a perspective view of a conventional terminal holding mechanism, and Fig. 4 is a perspective view of the conventional terminal holding mechanism.
5 and 5 are detailed perspective views of the housing used in the above terminal holding mechanism, and FIG. 6 is a sectional view taken along line BB in FIG. 3 of the conventional terminal holding mechanism. 1... Assembly forming block, 2, 4... Double locking connector, 3, 5... Housing, 6, 13...
Hinge, 7, 14... projection, 9, 16... double locking wall, 19, 21... rib, 12... electrical contact portion.

Claims (1)

[Scope of utility model registration request] A double locking wall having a double locking protrusion for a terminal inserted into the connector housing is provided on the inner surface of the connector housing through a hinge so that the double locking wall can be opened and closed freely. In a terminal holding mechanism of a connector housing in which locking connectors are disposed in a set forming block, the set forming block facing the double locking wall of the one or more double locking connectors or the opposing two or more double locking connectors are provided. On one side of the heavy locking wall, said 2
A terminal holding mechanism for a connector housing comprising a rib that prevents the double locking wall from opening and is provided substantially at right angles to the double locking wall.