JP2013222673A - Fitting structure of connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fitting structure of a connector, capable of preventing inter-terminal leakage due to a foreign matter.SOLUTION: A fitting structure 1 of a connector is for: a male type connector 50 having a male type connector housing 60 where a female terminal 11 is held; and a female type connector 10 having a female type connector housing 20 which has a fitting recess 40 whose one end 20c in a fitting direction is turned to a fitting port 40c in order to internally fit the male type connector housing 60, and holds a male terminal 11 to be a connection opposite party of a female terminal 51 so as to project a distal end into the fitting recess 40. The male type connector housing 60 has a cover wall part 70 formed by being erected along the outer periphery of the male type connector housing 60 so as to cover an end edge surface 40b of the fitting recess 40 of the female type connector housing 20 and an end part outer peripheral surface 40a connected to the end edge surface 40b, when fitted to the female type connector housing 20.

Description

  The present invention relates to a connector fitting structure between a male connector and a female connector.

2. Description of the Related Art Conventionally, a connector used for electrical connection of an electrical component such as a vehicle is such that a male connector having a male connector housing that holds a female terminal and a male connector housing are fitted inside. A female connector housing in which one end in a fitting direction has a fitting recess that is a fitting inlet, and a male terminal to be connected to a female terminal is held so that the tip protrudes into the fitting recess. A connector fitting structure with a female connector is used. The male connector and the female connector used in such a connector fitting structure are cost-effective by using a waterproof connector that uses a sealing member such as a waterproof rubber packing or a sealing member depending on the installation environment. A connector to be suppressed (hereinafter referred to as a non-waterproof connector) is used.
For example, Patent Document 1 discloses that a male connector and a female connector used in a connector fitting structure that enables electrical connection inside and outside a transmission case are arranged outside the transmission case. A male connector as a waterproof connector is described.

  In the male connector described in Patent Document 1, the female terminal accommodated in the male connector housing of the male connector is accommodated in a terminal by a spacer as a separate terminal locking portion separate from the male connector housing. This spacer is designed to be held at the installation completion position in the room. By providing this spacer with an overlapping wall that overlaps the partition wall that separates the terminal receiving chambers, foreign matter that has entered the male connector housing can be removed between adjacent female terminals. It is difficult to be moved to.

JP 2011-165370 A

  However, in the connector fitting structure using the connector described in Patent Document 1, the male connector housing 600 and the female connector housing 500 are inserted from the fitting opening 510 of the female connector housing 500 as shown by the arrows in FIG. When the foreign matter D enters the vicinity of the front end portion 610 in the fitting direction of the male connector housing 600 through the gap, there is a possibility that leakage between the terminals may occur due to the foreign matter D.

  This invention is made | formed in view of the above, Comprising: It aims at providing the fitting structure of the connector which can prevent the leak between terminals by a foreign material.

  In order to solve the above-described problems and achieve the object, a connector fitting structure according to claim 1 of the present invention includes a male connector having a male connector housing in which a female terminal is held; One end in the fitting direction has a fitting recess that is fitted into the male connector housing so that the male connector housing is fitted therein, and the male terminal to be connected to the female terminal has a tip in the fitting recess. In a connector fitting structure with a female connector having a female connector housing that is held so as to be protruded, when the male connector housing is fitted to the female connector housing, A cover wall portion erected along the outer periphery of the male connector housing so as to cover the end edge surface of the fitting recess of the female connector housing and the outer peripheral surface of the end connected to the end edge surface; It is characterized by That.

  In the connector fitting structure according to claim 2 of the present invention, in the above invention, the female connector housing is configured such that the fitting concave portion extends to a rear end portion in the fitting direction of the male connector housing. It is formed so as to cover the connector housing, and the covering wall portion is provided at the rear end portion in the fitting direction.

  In the connector fitting structure according to claim 3 of the present invention, in the above invention, the female connector housing is formed in a stepped shape in which the outer peripheral surface of the end portion is recessed inward compared to the peripheral outer peripheral surface. It is characterized by being made.

  According to a fourth aspect of the present invention, there is provided the connector fitting structure according to the above invention, wherein the male connector has the fitting recess when the male connector housing is fitted to the female connector housing. Separation that is assembled so as to be inserted from an opening of the male connector housing formed at an inner position, and is engaged with the female terminal to lock the female terminal in the male connector housing It further has a type terminal locking part.

  In the connector fitting structure according to claim 1 of the present invention, when the male connector housing is fitted into the female connector housing, an end edge surface of the fitting recess of the female connector housing and the end of the female connector housing are provided. Since it has the covering wall part standingly arranged along the outer periphery of the said male connector housing so that the edge part outer surface connected to an edge surface may be covered, the edge part of the said female connector housing and the said covering wall The joint line with the portion is L-shaped when viewed in cross section, and the intrusion path of the foreign matter is complicated, whereby leakage between terminals due to the foreign matter can be prevented.

  The connector fitting structure according to claim 2 of the present invention is such that the fitting recess is formed so as to cover the male connector housing up to the rear end portion in the fitting direction of the male connector housing. The front end of the male connector housing in the fitting direction, that is, the male terminal is inserted into the male connector housing even when a foreign object enters from the joint between the end of the connector housing and the cover wall. It is possible to set the distance to the position to be as long as possible, making it difficult for foreign matter to enter, and consequently preventing leakage between terminals due to the foreign matter more effectively.

  In the connector fitting structure according to claim 3 of the present invention, since the outer peripheral surface of the end portion of the female connector housing is formed in a stepped shape recessed inward as compared with the peripheral outer peripheral surface, Since the joint between the end portion of the connector housing and the cover wall portion has a more complicated crank shape when viewed in cross section, the entry path of foreign matter can be made more complicated.

  According to a fourth aspect of the present invention, there is provided a connector fitting structure comprising: an end portion of the female connector housing on the upstream side of a foreign substance intrusion path with respect to the opening into which the separation type terminal locking portion is inserted; Since foreign matter can be prevented from entering from the joint with the covering wall portion, foreign matter can be prevented from entering from the opening into which the separation type terminal locking portion is inserted.

FIG. 1 is a perspective view of a connector fitting structure according to an embodiment of the present invention. FIG. 2 is a diagram of the connector fitting structure shown in FIG. 1 as viewed from the rear end side in the fitting direction of the male connector. 3 is a cross-sectional view taken along line AA of the connector fitting structure shown in FIG. 4 is a cross-sectional view of the connector fitting structure shown in FIG. FIG. 5 is a perspective view of the female connector housing shown in FIG. 1 as viewed from the insertion side. FIG. 6 is a perspective view of the male connector housing shown in FIG. 1 viewed from the front end side in the fitting direction. FIG. 7 is a front view of the male connector shown in FIG. 1 viewed from the front end side in the fitting direction. FIG. 8 is a cross-sectional view of the male connector shown in FIG. 9 is a perspective view of the separation-type terminal locking portion shown in FIG. FIG. 10 is a view showing a procedure for assembling the separation type terminal locking portion to the male connector housing. FIG. 11 is a cross-sectional view of the connector fitting structure of Modification 1 of the connector fitting structure according to the embodiment of the present invention. FIG. 12 is a cross-sectional view of the connector fitting structure of Modification 2 of the connector fitting structure according to the embodiment of the present invention. FIG. 13: is sectional drawing of the connector fitting structure of the modification 3 of the connector fitting structure which concerns on the Example of this invention. FIG. 14 is a diagram for explaining the related art.

  DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of a connector fitting structure according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view of a connector fitting structure 1 according to an embodiment of the present invention. FIG. 2 is a view of the connector fitting structure 1 shown in FIG. 1 as viewed from the rear end side in the fitting direction of the male connector 50. FIG. 3 is a cross-sectional view of the connector fitting structure 1 shown in FIG. 4 is a cross-sectional view of the connector fitting structure 1 shown in FIG. FIG. 5 is a perspective view of the female connector housing 20 shown in FIG. 1 viewed from the side of the fitting opening 40c. FIG. 6 is a perspective view of the male connector housing 60 shown in FIG. 1 viewed from the front end side in the fitting direction. FIG. 7 is a front view of the male connector 50 shown in FIG. 1 viewed from the front end side in the fitting direction. In FIG. 7, the electric wire connected to the female terminal 51 is omitted. 8 is a cross-sectional view of the male connector 50 shown in FIG. FIG. 9 is a perspective view of the separation-type terminal locking portion 80 shown in FIG. FIG. 10 is a view showing a procedure for assembling the separation type terminal locking portion 80 to the male connector housing 60.
In the connector fitting structure 1 according to the embodiment of the present invention, the male connector 50 having the male connector housing 60 holding the female terminals 51 and the male connector housing 60 are fitted inside. One end 20c in the fitting direction has a fitting recess 40 which is a fitting inlet 40c, and the male terminal 11 to which the female terminal 51 is connected is held so that the tip protrudes into the fitting recess 40. And a female connector 10 having a female connector housing 20 to be fitted. The male connector 50 is a non-waterproof connector that does not use a sealing member such as a waterproof rubber packing.

First, the female connector 10 will be described.
The female connector 10 has a female connector housing 20 as a main body. The female connector housing 20 is made of an insulating member having a cylindrical shape as a whole, and a partition wall 21 (see FIG. 4) so as to form a liquid-side fitting concave portion 30 and a fitting concave portion 40, which will be described later, inside the cylinder. ) And eight male terminals 11 are held on the partition wall 21 in two stages of four. That is, the partition wall 21 functions as a terminal holding wall that holds the male terminal 11.
In addition, the male terminal 11 used in this embodiment is a so-called joint terminal in which both ends are tab-shaped electrical connection portions 11a.

  The female connector housing 20 is formed on the outer surface of the transmission case so that the liquid-side fitting recess 30 is disposed in the transmission case (not shown) by a flange portion 22 protruding in a plate shape in the radially outward direction. It is supposed to be fixed.

  The submerged-side fitting portion 30 is a portion to be fitted with a mating connector (not shown) in the transmission case, that is, in the lubricating oil.

  The fitting recess 40 is a portion into which a male connector housing 60 (described later) of the male connector 50 is fitted outside the transmission case. As for this fitting recessed part 40, one electrical connection part 11a of each male terminal 11 protrudes from the partition wall 21 which forms the bottom part of a recessed part.

  The female connector housing 20 is formed such that the fitting recess 40 covers the male connector housing 60 up to the rear end portion 60b of the male connector housing 60 in the fitting direction.

  Further, the outer peripheral surface 40a of the end of the fitting recess 40 is formed in a stepped shape that is recessed inward as compared to the peripheral outer surface 20a.

Next, the male connector 50 will be described.
The male connector 50 has a male connector housing 60 as a main body.
The male connector housing 60 is made of an insulating member having a prismatic shape as a whole, and includes eight terminal accommodating chambers 61 in which eight female terminals 51 are accommodated in two stages, and a covering wall portion. 70.

As shown in FIG. 8, each terminal accommodating chamber 61 is provided with an elastic piece-like engaging portion 61a protruding in a piece from the upper surface, and each female terminal 51 is connected to each terminal by the elastic piece-like engaging portion 61a. It is locked at the attachment completion position in the storage chamber 61.
Further, each terminal accommodating chamber 61 is formed with a terminal insertion hole 61a that is penetrated from the surface on the front end side in the fitting direction of the male connector housing 60 and into which the electrical connection portion 11a of each male terminal 11 is inserted.

When the male connector housing 60 is fitted to the female connector housing 20, the cover wall portion 70 is connected to the end edge surface 40b of the fitting recess 40 of the female connector housing 20 and the end outer peripheral surface connected to the end edge surface 40b. It is a wall erected along the outer periphery 60a of the male connector housing 60 so as to cover 40a.
More specifically, the cover wall 70 is perpendicular to the fitting direction, and is formed of a wall erected so as to be perpendicular to the fitting direction along the outer periphery 60a of the rear end 60b in the fitting direction of the male connector housing 60. The wall portion 71 includes a fitting direction extending wall portion 72 formed of a wall bent from the upper end of the fitting direction orthogonal wall portion 71 and extending along the fitting direction.

  When the male connector housing 60 and the female connector housing 20 are fitted, the fitting direction orthogonal wall portion 71 is disposed so as to face the end edge surface 40b of the male connector housing 60 and is orthogonal to the fitting direction. The height of the female connector housing 20 is set so as to slightly protrude from the outer peripheral surface 40a of the end of the female connector housing 20.

  The fitting-direction extending wall 72 is disposed so as to face the outer peripheral surface 40a of the end of the male connector housing 60 in parallel when the male connector housing 60 and the female connector housing 20 are fitted. .

For this reason, as shown in FIG. 4, the joint C between the end 20b of the female connector housing 20 and the cover wall 70 is L-shaped when viewed in cross section.
In this embodiment, since the outer peripheral surface of the end portion 20b of the female connector housing 20 is stepped, the joint C between the end portion 20a of the female connector housing 20 and the cover wall portion 70 has a cross section. It has a more complicated crank shape.

Further, the male connector 50 has a separate type terminal locking portion 80.
The separation-type terminal locking portion 80 locks each female terminal 51 at the attachment completion position in each terminal accommodating chamber 61 together with the elastic piece-like engagement portion 61a.
The separated type terminal locking portion 80 is inserted from the opening 60c of the male connector housing 60 formed at a position in the fitting recess 40 when the male connector housing 60 is fitted into the female connector housing 20. As a result, the female terminals 51 are locked in the terminal accommodating chambers 61 by being brought into contact with the female terminals 51.

More specifically, as shown in FIG. 9, the separation-type terminal locking portion 80 is a separate member from the male connector housing 60, and is abutted so as to abut against each female terminal 51. A protruding portion 81 is provided for each female terminal 51.
When such a separate terminal engaging portion 80 is assembled to the male connector housing 60, as shown in FIG. 10, each female terminal 51 is placed in each terminal accommodating chamber 61 at a position midway of insertion movement from the opening 60c. Each contact protrusion 81 is brought into contact with each female terminal 51 by being attached (see FIG. 10A) and then inserted and moved to the attachment completion position.

  In the connector fitting structure 1 according to the embodiment of the present invention, when the male connector housing 60 is fitted to the female connector housing 20, the end edge surface 40b and the end of the fitting recess 40 of the female connector housing 20 are connected. Since it has the covering wall part 70 standingly arranged along the outer periphery of the male connector housing 60 so that the edge part outer peripheral surface 40a connected to the edge surface 40b may be covered, the edge part 20b of the female connector housing 20 is provided. The joint C between the cover wall 70 and the cover wall 70 is L-shaped when viewed in cross section, and the intrusion path of the foreign matter is complicated, thereby preventing leakage between terminals due to the foreign matter.

  Further, the connector fitting structure 1 according to the embodiment of the present invention is formed so that the fitting recess 40 covers the male connector housing 60 up to the rear end portion 60b in the fitting direction of the male connector housing 60. Even when a foreign object enters from the joint between the end 20b of the female connector housing 20 and the cover wall 70, the front end of the male connector housing 60 in the fitting direction, that is, the male terminal 11 is the male connector housing. The distance to the position inserted in 60 can be set as long as possible, and foreign objects are less likely to enter, and as a result, leakage between terminals due to foreign objects can be more effectively prevented.

  Further, the connector fitting structure 1 according to the embodiment of the present invention is formed such that the end outer peripheral surface 40a of the female connector housing 20 is formed in a stepped shape recessed inward as compared with the peripheral outer peripheral surface 20a. Since the joint C between the end 20b of the female connector housing 20 and the cover wall 70 has a more complicated crank shape when viewed in cross section, the entry path of foreign matter can be made more complicated.

  Further, the connector fitting structure 1 according to the embodiment of the present invention has an end of the female connector housing 20 on the upstream side of the foreign substance intrusion path with respect to the opening 60c into which the separation type terminal locking portion 80 is inserted. Since foreign matter can be prevented from entering from the joint C between the portion 20b and the covering wall portion 70, foreign matter can be prevented from entering from the opening 60c into which the separation type terminal locking portion 80 is inserted.

(Modification 1)
Next, the connector fitting structure 2 of Modification 1 of the connector fitting structure 1 according to the embodiment of the present invention will be described with reference to FIG. FIG. 11 is a cross-sectional view of the connector fitting structure 2 of Modification 1 of the connector fitting structure 1 according to the embodiment of the present invention.
The connector fitting structure 2 of Modification 1 is different from the connector fitting structure 1 of the embodiment in that the female connector 100 includes a female connector housing 110 instead of the female connector housing 60. .
Other configurations are the same as those in the embodiment, and the same components as those in the embodiment are denoted by the same reference numerals.

  The female connector housing 110 has an end outer peripheral surface 40a that is flush with the peripheral outer peripheral surface.

  Similar to the connector fitting structure 1 of the embodiment, the connector fitting structure 2 of the first modification is obtained by viewing the joint C between the end 20b of the female connector housing 110 and the cover wall 70 in a cross section. It becomes L-shaped and the intrusion route of foreign matter is complicated, so that leakage between terminals due to foreign matter can be prevented.

(Modification 2)
Next, the connector fitting structure 3 of Modification 2 of the connector fitting structure 1 according to the embodiment of the present invention will be described with reference to FIG. FIG. 12 is a cross-sectional view of the connector fitting structure 3 of Modification 2 of the connector fitting structure 1 according to the embodiment of the present invention.
In the connector fitting structure 3 of Modification 1, the male connector 200 has a male connector housing 210 instead of the male connector housing 60, and the female connector 300 is connected to the female connector housing 20. It differs from the connector fitting structure 1 of an Example by the point which has a female connector housing 310 instead.
Other configurations are the same as those in the embodiment, and the same components as those in the embodiment are denoted by the same reference numerals.

The female connector housing 310 is formed so that the fitting recess 40 covers a part of the male connector housing 210 from the front end portion of the male connector housing 210 in the fitting direction.
The male connector housing 210 has a cover wall portion 220 provided in front of the rear end portion in the fitting direction.

  The connector fitting structure 3 of the second embodiment is similar to the connector fitting structure 1 of the embodiment in that the joint C between the end 20b of the female connector housing 310 and the cover wall 220 is viewed in cross section. It becomes L-shaped and the intrusion route of foreign matter is complicated, so that leakage between terminals due to foreign matter can be prevented.

(Modification 3)
Next, the connector fitting structure 4 of Modification 3 of the connector fitting structure 1 according to the embodiment of the present invention will be described with reference to FIG. FIG. 13: is sectional drawing of the connector fitting structure 4 of the modification 3 of the connector fitting structure 1 which concerns on the Example of this invention.
The connector fitting structure 3 of Modification 3 is different from the connector fitting structure 1 of the embodiment in that the male connector 400 includes a male connector housing 410 instead of the male connector housing 60.
Other configurations are the same as those in the embodiment, and the same components as those in the embodiment are denoted by the same reference numerals.

  In the male connector housing 410, the cover wall 420 extends longer in the fitting direction than the cover wall 70 of the first embodiment.

The connector fitting structure 4 according to the third embodiment can achieve the same effects as the connector fitting structure 1 according to the third embodiment.
In addition, since the cover wall 420 is set longer, the distance of the intrusion path for the foreign matter becomes longer, which makes it difficult for the foreign matter to enter. As a result, the leakage between the terminals due to the foreign matter is more effectively prevented. be able to.

  The invention made by the present inventor has been specifically described based on the above-described embodiments of the invention. However, the present invention is not limited to the above-described embodiments of the invention and does not depart from the gist thereof. Various changes can be made.

1, 2, 3, 4 Connector fitting structure 10, 100, 300 Female connector 11 Male terminal 11a Electrical connection 20, 110, 310 Female connector housing 20a Outer peripheral surface 20b End 20c One end 21 Partition wall 22 Flange 30 Submerged fitting recess 40 Fitting recess 40a End outer peripheral surface 40b End edge surface 40c Inlet 50, 200, 400 Male connector 51 Female terminal 60, 210, 410 Male connector housing 60a Outer periphery 60b After mating direction End portion 60c Opening 61 Terminal accommodating chamber 61a Elastic piece-like engaging portion 61b Terminal insertion hole 70, 220, 420 Cover wall portion 71 Fitting direction orthogonal wall portion 72 Fitting direction extending wall portion 80 Separable terminal locking portion 81 Abutting protrusion C Joint

Claims (4)

A male connector having a male connector housing for holding a female terminal; and a fitting recess in which one end in a fitting direction is a fitting inlet so that the male connector housing is fitted inside. In addition, in a connector fitting structure with a female connector having a female connector housing in which a male terminal to be connected to the female terminal is held so that a tip protrudes into the fitting recess. ,
The male connector housing is
When fitted into the female connector housing, on the outer periphery of the male connector housing so as to cover the edge surface of the fitting recess of the female connector housing and the outer peripheral surface of the end connected to the edge surface. A connector fitting structure, comprising a covering wall portion erected along the connector. The female connector housing is
The fitting recess is formed so as to cover the male connector housing up to the rear end portion in the fitting direction of the male connector housing,
The covering wall portion is
The connector fitting structure according to claim 1, wherein the connector fitting structure is provided at a rear end portion in the fitting direction. The female connector housing is
The connector fitting structure according to claim 1, wherein the outer peripheral surface of the end portion is formed in a stepped shape that is recessed inward as compared with the peripheral outer peripheral surface. The male connector is
When the male connector housing is fitted to the female connector housing, the female terminal is assembled so as to be inserted from an opening of the male connector housing formed at a position that is in the fitting recess. 4. The connector according to claim 1, further comprising a separation-type terminal locking portion that locks the female terminal into the male connector housing by contacting the female terminal. Mating structure.

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