JPS6330146Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to improvements in connectors.

A connector generally connects internal female and male electrical connectors to each other by mating a male housing and a female housing. The structure is such that the locking arm prevents it from slipping out.

However, although the movement of the locking arm is limited to some extent by engagement with the electrical connector, its flexible nature still leaves room for displacement within the containment chamber.
Therefore, if diagonal tension is applied to the electric wire connected to the terminal of the electrical connector, the locking arm may bend and the electrical connector may come off, or in extreme cases, it may break. However, there were still some deficiencies in the reliability of electrical connections.

The present invention was developed with attention to the above points, and by fixing the locking arm using the mating end face of the mating housing, it prevents the electrical connector from coming off and damaging the locking arm. The object of the present invention is to provide a connector that can maintain a stable electrical connection state.

Hereinafter, the present invention will be explained with reference to the drawings. F indicates a female housing and M indicates a male housing. Locking hole 3 provided
and are mutually locked.

In the housing chambers 4 and 5 formed inside the female and male housings F and M, respectively, there are flexible locking arms 6 whose free ends extend in the direction of the opposing housings and are displaced in a direction intersecting the direction of extension. and 7 are provided protrudingly,
Protrusions 8 and 9 are formed at the tips of each arm 6 and 7.

These locking arms 6, 7 lock each storage chamber 4, 5.
Female and male electrical connectors 10, 1 housed in
1 is prevented from slipping out.

That is, each electrical connector 10, 11 has a shape as shown in FIG.
In the male electrical connector 11, the protrusion 9 of the locking arm 7 is fitted into the locking hole 14 at the rear of the male terminal portion 13, and is prevented from coming off.

The above is the same configuration as a conventional connector, but
In the present invention, projections 15 and 1 having V-shaped tapered surfaces are provided on the free end surfaces of each of the locking arms 6 and 7.
6, corresponding to the protrusions 15 and 16 having tapered surfaces, the fitting side end surfaces of the mating housings M and F also have protrusions 1 having tapered surfaces.
7 and 18 are formed.

In the case of the figure, the protrusion 17 having a tapered surface is formed at the extending end of the upper outer peripheral wall 19 of the male housing M, and the protrusion 17 having a tapered surface
is formed at the extending end of the inner wall 20 of the female housing F.

As a result, the female and male housings F, M are fitted together, and the protrusions 1 having the tapered surfaces of the respective locking arms 6, 7
Both tapered surfaces of protrusions 17 and 18 having tapered surfaces of the mating housing are fixed to the protrusions 5 and 16 in close contact with each other, thereby preventing the protrusions from deflecting.

FIGS. 3a and 3b show another example of preventing the deformation of the locking arm, in which protrusions 21 and 22 each having a V-shaped tapered surface are formed on the locking arm 6, and corresponding projections 21 and 22 are formed on the outer peripheral wall 19, respectively. Protrusion 2 with tapered surface
3 and 24 are formed. In this case, the protrusion 22 whose tapered surface is only in one direction is in close contact with a similar protrusion 24, and the protrusion 22 is in close contact with the similar protrusion 24.
This prevents the locking arm from bending as it is always pressed downward and fixed.

Since the present invention is constructed as described above,
When an electrical connector is inserted into the accommodation chamber of the housing, the locking arm is displaced due to its flexibility to allow insertion of the electrical connector, and returns to lock the electrical connector, and is fitted into the opposing housing. When fitted, the locking arm engages with the opposing housing and is prevented from being displaced, thereby reliably locking the electrical connector.

[Brief explanation of drawings]

Fig. 1 is a vertical cross-sectional view of a main part of a connector showing one embodiment of the present invention, Fig. 2 is a perspective view showing its electrical connector, and Fig. 3 a and b are main parts showing other examples of the present invention. FIG. F...Female housing, M...Male housing,
4,5... Containment chamber, 6,7... Locking arm, 10,1
1... Electric connector, 15, 16... Protrusion having a tapered surface, 17, 18... Protrusion having a tapered surface.

Claims (1)

[Scope of utility model registration request] A flexible locking arm whose free end extends in the direction of the opposing housing and is displaced in a direction crossing the extension direction is provided in the housing chamber for the electrical connector, and the electrical connector is locked therein. A connector characterized in that when both housings are fitted together, the free end of the engaging arm engages with the opposing housing to prevent the displacement.