JPH09180816A - Connector housing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent deformation by external force of a guide function and an elastic lock piece, and attain size reduction by inserting an engaging projection part of a mating side connector housing into a guide opening, and bringing the elastic lock piece into contact with a side wall of the opening. SOLUTION: When a connector housing 1 is inserted into a housing 11 of a pin connector 10, an engaging projection part 14 formed in the housing 11 is inserted into a guide opening 6 by being guided by the guide opening 6. When the engaging projection part 14 comes into contact with an engaging projection 5 of an elastic lock piece 3 exposed to a bottom part of the guide opening 6, in the elastic lock piece 3, its operation part 3a side is elastically swung in the downward direction by the engaging projection part 14, and passing of the engaging projection part 14 is allowed. When the engaging projection part 14 passes through the engaging projection 5, the elastic lock piece 3 is restored, and the engaging projection 5 engages with the engaging projection part 14, and the housing 11 of the pin connector 10 is put in a condition of being locking on a fitting position. A side wall (a hood) 4 of the guide opening 6 has a fitting time guide function to the pin connector 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector housing, and more particularly to a connector housing provided with an elastic lock piece for locking a mating connector housing at a fitting position.

[0002]

2. Description of the Related Art Conventionally, for example, a mating side shown on the right side of FIG. 7 in which the connector housing 30 is inserted on a mounting plate surface 31 of the connector housing 30 shown on the left side of FIG. It is known that an elastic lock piece 32 is provided for locking the housing 40 of the pin connector at the fitting position.

In this case, in the housing 40 of the mating pin connector, an engaging recess 42 is formed on the upper plate surface side of the housing 40 so as to be continuous with the fitting opening 41.
Is formed along the fitting direction of the connector housing 30.
Is elastically urged in a direction away from the mounting plate surface 31 to a position corresponding to the engaging recess 42 of the mounting plate surface 31 facing the upper plate surface of the housing 40 of the pin connector in the fitted state. The elastic lock piece 32 is swingably attached with the front end as a fulcrum. On the upper surface of the elastic lock piece 32, engaging projections 34, 34 that form a locking mechanism with the engaging recess 42 are provided in a projecting manner, and at the rear free end of the elastic lock piece 32, a lock is released. The operation part 35 is formed. Further, a guide groove 33 is formed in the elastic lock piece 32 from the fitting end side with respect to the fitting opening 41 along the fitting direction, and an engaging piece 43 that engages with the guide groove 33 is the engaging recess. 42 has a configuration in which it is formed so as to project (see Japanese Utility Model Publication No. 2-18937).

[0004]

However, in the above-mentioned conventional connector housing 30, the guide groove 33 is formed in the elastic lock piece 32 thereof, and the elastic lock piece 32 is provided with respect to the housing 40 of the mating pin connector. Although it has a function of guiding by a guide, it does not have a function of preventing its deformation, so that the connector housing 3
Before inserting 0 into the housing 40 of the mating pin connector, there is a problem that the elastic lock piece 32 is destroyed when an excessive external force is applied to the elastic lock piece 32 from the lower side of FIG.

Therefore, in order to prevent the elastic lock piece 32 from being deformed by an excessive external force, it is possible to provide a hood for covering the elastic lock piece 32. In that case, the guide groove 33 is also covered. Therefore, it becomes impossible to insert the connector housing 30 into the housing 40 of the mating pin connector.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a compact connector housing having both the above-mentioned guiding function and the function of preventing the elastic lock piece from being deformed by an excessive external force.

[0007]

SUMMARY OF THE INVENTION A connector housing according to the present invention includes a housing body which is inserted and fitted into a fitting opening provided in a mating connector housing, and a mating connector provided in the housing body. In a configuration including an elastic lock piece that locks the housing at the fitting position, the engaging projection formed on the mating connector housing is extended from the fitting end of the housing body in the fitting direction. And a guide opening exposing the elastic lock piece at the bottom, and a hood that forms a side wall of the guide opening and can contact the elastic lock piece.

[0008]

The connector housing according to the present invention forms a guide opening for guiding the engaging projection formed on the mating connector housing and exposing the elastic lock piece at the bottom, and a side wall of the guide opening. In addition, since the hood has a hood capable of abutting the elastic lock piece, the hood not only has a guiding function at the time of fitting with the mating connector housing, but also does not fit with the mating connector housing. Even when an excessive external force is applied to the elastic lock piece at this time, the elastic lock piece is brought into contact with the hood, so that the elastic lock piece is prevented from being deformed.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view showing an embodiment of a connector housing according to the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a sectional view taken along line III--III of FIG. 1, and FIG. A front view of the pin connector, FIG. 5 is a cross-sectional view taken along line VV of FIG. 4, and FIG. 6 shows a state where the pin connector of FIG. 4 is fitted in the connector housing of FIG. FIG. 5 is a sectional view taken along line VV of FIG. 4.

The connector housing 1 according to the present embodiment shown in FIGS. 1 to 3 is inserted and fitted into the fitting opening 12 of the receiving insulating housing 11 of the mating pin connector 10 shown in FIGS. 4 and 5. The insertable insulative housing body 2 is provided. The housing body 2 is provided with a plurality of receptacle contact receiving passages 7 that penetrate through the housing body 2 in the fitting direction. Each of the receptacle contact receiving passages 7 receives a connector pin 13 of a pin connector 10 (shown in the figure). Are omitted).

At the inlet of the upper wall portion 15 of the housing 11 of the pin connector 10, an engaging convex portion 14 is provided so as to project toward the fitting opening 12. Then, on the upper surface of the housing body 2, a guide opening 6 that opens upward and guides the engaging projection 14 of the pin connector 10 is provided at a position corresponding to the engaging projection 14 of the pin connector 10. It is formed so as to extend from 2A in the fitting direction.

At the bottom of the guide opening 6, a swingable elastic lock piece 3 extending in the fitting direction from the fitting end 2A with the fitting end 2A side of the housing body 2 as a fulcrum is exposed.
The elastic lock piece 3 is integrally formed with a lock releasing operation portion 3A at a rear end thereof, and elastically engages with the engaging convex portion 14 of the pin connector 10 on the upper surface as shown in FIG. Engagement protrusions 5 are provided that can engage and lock the pin connector 10 at the fitting position.

The elastic lock piece 3 is formed such that its width is slightly wider than the distance between the side walls 4 and 4 of the guide opening 6.
That is, the side walls 4 and 4 of the guide opening 6 extending in the fitting direction are pushed out into the guide opening 6 so as to cover the both side edges 3B and 3B of the elastic lock piece 3 and protrude into the guide opening 6. Which constitutes the hood for the elastic lock piece 3
The upper surfaces of both side edge portions 3B, 3B of the guide opening 6 are opposite side walls 4,
4 can come into contact with the lower surfaces of the protruding portions 4A, 4A. Therefore, even if an excessive external force is applied to the elastic lock piece 3 when the pin connector 10 is not fitted, the elastic lock piece 3 is deformed by coming into contact with the lower surfaces of the protruding portions 4A, 4A of the side walls 4, 4. Is prevented.

Further, the housing body 2 is provided with an opening 8 for inserting a double lock member (not shown).
The double lock member is inserted into the housing main body 2 after the receptacle contact is housed in the receptacle contact receiving passage 7, and cooperates with the housing lance 9 formed on the upper wall portion of the passage 7 to form the receptacle contact. Has a double locking function.

With the above construction, when the connector housing 1 according to this embodiment is inserted into the housing 11 of the pin connector 10, the engaging projection 14 formed on the housing 11 is guided to the guide opening 6. When the engaging protrusion 14 comes into contact with the engaging protrusion 5 of the elastic lock piece 3 that is inserted into the guide opening 6 and is exposed at the bottom of the guide opening 6,
The elastic lock piece 3 has its operating portion 3A by the engaging convex portion 14.
Since the side is elastically swung in the downward direction, the engagement protrusion 14 is allowed to pass, and when the engagement protrusion 14 passes the engagement protrusion 5, the elastic lock piece 3 is restored. Then, as shown in FIG. 6, the engagement protrusion 5 engages with the engagement protrusion 14, and the housing 11 of the pin connector 10 is locked at the fitting position.

Further, in this fitted state, by pushing the operation portion 3A of the elastic lock piece 3 downward, the engagement between the engagement projection 5 and the engagement projection 14 is released, so that the connector housing 1 Can be pulled out from the housing 11 of the pin connector 10.

Connector housing 1 according to the present embodiment
Then, both side walls 4 and 4 of the guide opening 6 are pushed into the guide opening 6 so as to cover the both side edges 3B and 3B of the elastic lock piece 3 exposed at the bottom of the guide opening 6, and the elastic lock piece 3 Guide opening 6 because it constitutes a hood for 3
Both side walls 4 and 4 not only have a guiding function when fitted to the pin connector 10, but also when an excessive external force is applied to the elastic lock piece 3 when the housing 11 of the pin connector 10 is not fitted. , Both side edges 3B of the elastic lock piece 3,
3B is a protruding portion 4A of both side walls 4 and 4 of the guide opening 6,
By contacting the lower surface of 4A, deformation of the elastic lock piece 3 is prevented.

That is, the side walls 4 and 4 forming the hood for the elastic lock piece 3 also have a function as a deformation preventing mechanism for the elastic lock piece 3.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a connector housing according to the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a front view of a mating pin connector.

FIG. 5 is a sectional view taken along line VV in FIG. 4;

6 is a view showing a state in which the pin connector of FIG. 4 is fitted in the connector housing of FIG. 1 along line III-III of FIG. 1 and FIG.
Sectional view along line VV

FIG. 7 is a perspective view showing a conventional connector housing and a housing of a pin connector fitted to the conventional connector housing.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Connector housing 2 Housing main body 3 Elastic locking piece 4 Side wall (hood) of guide opening 5 Engaging protrusion 6 Guide opening 7 Receptacle contact receiving passage 10 Pin connector 11 Pin connector housing 12 Fitting opening 13 Connector pin 14 Engaging protrusion

Claims (1)

[Claims] 1. A housing main body which is inserted and fitted into a fitting opening provided in a mating connector housing, and an elastic lock which is provided in the housing main body and locks the mating connector housing at a fitting position. A connector housing including a piece, which extends in a fitting direction from a fitting end of the housing body, guides an engaging convex portion formed on the mating connector housing, and has the elastic lock piece at a bottom portion. A connector housing comprising: a guide opening that exposes the guide opening; and a hood that forms a side wall of the guide opening and that can come into contact with the elastic lock piece.