JP5182933B2 - Combined connector - Google Patents

Description

  The present invention relates to a combined connector that is used in a form in which a plurality of connector housings are joined together by being connected in a state where connector housings that accommodate a plurality of terminals are overlapped.

  8 to 10 show a conventional example of a combined connector that is combined in a state where a plurality of connector housings are overlapped with each other.

  The union connector 101 shown here is a male pressure contact connector disclosed in Patent Document 1 below, and includes a lowermost connector housing 103 disposed in the lowermost stage, a middle connector housing 105 disposed in the middle, The uppermost connector housing 107 is arranged at the uppermost stage.

  As shown in FIG. 8, the lowermost connector housing 103 has an upper surface set to a mating surface 103 a that overlaps the middle connector housing 105 and the uppermost connector housing 107.

  On the other hand, the lower connector housing 105 has a lower surface set to a mating surface 105a that overlaps with the lowermost connector housing 103 or another intermediate connector housing 105, and an upper surface with the uppermost connector housing 107 or another. It is set to the mating surface 105 b that is overlapped with the middle connector housing 105.

  The uppermost connector housing 107 has a lower surface set to a mating surface 107 a that is overlapped with the middle connector housing 105 or the lower connector housing 103.

  Each of the connector housings 103, 105, and 107 has a plurality of terminal accommodating chambers 111 for accommodating and holding female terminals 109 inserted from the rear end sides thereof in a single layer. Further, in order to facilitate the insertion of the terminal 109 into the terminal accommodating chamber 11, each terminal accommodating chamber 111 is formed in a shape in which the latter half of the upper surface is opened, and the open portion 111a is shown in FIG. As shown, it is covered by another connector housing or cover 113 that is overlaid.

  The connector housings with their mating surfaces overlapped to each other are connected by engagement of a locking protrusion (lock beak) 121 on one connector housing and an elastic engagement piece (lock arm) 123 on the other connector housing. Then, as shown in FIG. 9, a plurality of connector housings 103, 105, 107 are combined.

  In the case of this conventional example, the locking protrusions 121 are provided in the middle and uppermost connector housings 105 and 107 on the outer side surfaces on both sides of the mating surface, in a region closer to the rear end and closer to the lower part. ing.

  On the other hand, in the lowermost connector housing 103 and the middle connector housing 105, the elastic engagement pieces 123 are positioned closer to the rear end on the outer surfaces on both sides of the mating surfaces so as to overlap the outer surfaces of the connector housings that are overlaid. The plate-shaped main body 123a formed so as to protrude upward is provided with an engagement hole 123b with which the engagement protrusion 121 is engaged.

  The connector housings 103, 105, and 107 are positioned on the lower side when the corresponding mating surfaces are brought closer to each other in the direction indicated by the arrow A in FIG. 8 so that the rear end position and the front end position of the housing are aligned. When the elastic engaging piece 123 on the connector housing that rides on the locking protrusion 121 on the connector housing positioned on the upper side while elastically deforming and the corresponding mating surfaces are in contact with each other, the locking protrusion 121 Is inserted into the engagement hole 123b of the elastic engagement piece 123, and at the same time, the elastic deformation of the elastic engagement piece 123 is released, and the overlapping connector housings are connected and combined.

  As shown in FIG. 10, the combined connector 101 in which the connector housings 103, 105, and 107 have been combined is fitted and inserted into the fitting hood 133 of the female connector 131.

Japanese Utility Model Publication No. 05-065073

  However, in each of the connector housings 103, 105, and 107 constituting the united connector 101, the elastic engagement pieces 123 extend along the stacking direction (vertical direction), and therefore the length is inevitably short. A large stress is applied to the base of the elastic engagement piece 123 at the time of removal.

  Therefore, during the operation of connecting the housings to each other or during the operation of releasing the combination, the force acting between the elastic engagement pieces 123 to be engaged and disengaged and the locking protrusions 121 and the elastic engagement pieces 123 and The housing outer wall around the stop protrusion 121 is deformed. With the deformation of the outer wall of the housing, the terminal accommodating chamber 111 adjacent to the outer wall of the housing may be deformed to break the terminal 109 accommodated therein. In particular, when the connector housings 103, 105, and 107 are thinned, the problem of deformation is large.

  In addition, in the case of a combined connector used for connecting a vehicle wiring harness or the like, downsizing is an important issue, and the outer dimensions of the combined connector increase due to protrusions such as a lock portion that connects the connector housings together. It is necessary to consider not to do so.

  An object of the present invention is to solve the above-mentioned problems, and can prevent deformation of the outer wall of each connector housing equipped with an elastic engagement piece or a locking projection for connecting the connector housings. The connector housing is a highly reliable union connector with no risk of breaking the terminals housed by deformation of the terminal housing chamber adjacent to the outer wall when the connector housings are engaged / disengaged with each other. It is to provide a combined connector that does not protrude outside and cause an increase in size.

The above object of the present invention is achieved by the following configurations.
(1) The at least two connector housings, which include at least two connector housings and overlap each other's mating surfaces, are each provided with a locking projection provided on one of the at least two connector housings. A combined connector that is connected by engagement with an elastic engagement piece provided on the other connector housing and is used in a form in which the at least two connector housings are combined,
Each of the at least two connector housings has a housing body;
The surface of the housing body upper surface side outer wall that becomes the upper partition wall of the terminal housing chamber of the housing body is a mating surface of the one connector housing when the other connector housing is overlaid on the one connector housing. And
Each of the at least two connector housings further includes guide sidewalls extending upward from both side portions of the housing main body upper surface side outer wall,
Each of the guide side walls is provided with the elastic engagement piece along a guide direction by the guide side wall, and the housing main body outer wall positioned below each of the guide side walls overlaps with the other connector housing. The locking projection to be engaged with the elastic engagement piece of the guide side wall of the one connector housing is provided,
After the rear end portion of the mating surface of the other connector housing is superimposed on the front end portion of the mating surface of the one connector housing, the rear end positions of the mating surfaces of the at least two connector housings are aligned. By sliding the at least two connector housings along the mating surface, the elastic engagement piece engages with the front end portion of the locking projection, thereby restricting movement of the engagement projection to the front end side. A combined connector characterized by the above.

(2) Each of the at least two connector housings has a lock wall that locks an engagement state between the elastic engagement piece and the locking protrusion,
The lock wall is provided so as to protrude inward from a rear end of the guide side wall, and the other inserted between the guide side walls of the one connector housing when the at least two connector housings are joined together. The connector housing is brought into contact with the rear end of the outer wall of the housing main body, thereby restricting the movement of the engagement protrusion to the rear end side, and the engagement state between the elastic engagement piece and the locking protrusion is set. Lock and
At the rear end of the outer wall of the housing main body against which the lock wall abuts, the end face position is retracted by an amount corresponding to the thickness of the lock wall so that the abutted lock wall is within the plan view outline of the housing main body. The union connector according to (1), wherein a portion is secured.

(3) The outer wall of the housing main body with which the lock wall abuts also serves as a side wall of the terminal accommodating chamber, and the one connector located at the escape portion when the at least two connector housings are joined together. The united connector according to (2), wherein the lock wall of the housing functions as a side wall of the terminal accommodating chamber of the other connector housing.

  According to the configuration of the above (1), each of the guide side walls extending upward from the both side portions of the housing main body upper surface side outer wall is provided with the elastic engagement piece along the guide direction by the guide side wall, and the guide side wall Since the outer wall of the housing body located below each is provided with a locking projection that engages with an elastic engagement piece on the guide side wall of one connector housing that is superimposed under the other connector housing, As a piece, a necessary length can be sufficiently obtained within a range where stress is not concentrated on the base, and the length can be arbitrarily adjusted. Accordingly, there is no stress concentration on the elastic engagement piece base due to the short elastic engagement piece as in the prior art.

  Therefore, at the time of engagement / disengagement between the connector housings, it is possible to prevent the guide side wall provided with the elastic engagement piece base and the both outer walls in the vicinity thereof from being deformed by the force acting on the elastic engagement piece and the locking projection, It is possible to prevent deformation of the terminal accommodating chamber adjacent to both outer walls.

Therefore, it is possible to provide a highly reliable combined connector in which the terminal accommodated by the deformation of the terminal accommodating chamber adjacent to the both outer walls is not broken.
Further, even if the connector housing is thinned, the length of the elastic engagement piece is not affected, so that the entire combined connector can be thinned without deformation of the terminal housing chamber of the connector housing.

  According to the configuration of (2) above, the lock wall that locks the engagement state between the elastic engagement piece and the locking protrusion is formed inward from the rear end of the guide side wall on which the elastic engagement piece is provided. Furthermore, when the connector housings are connected to each other, they are in contact with the rear end of the outer wall of the mating connector housing in a state of being fitted in the clearance secured at the rear end of the outer wall of the mating connector housing. In addition, the lock portion protrudes outward from the connector housing and does not cause an increase in size, which is advantageous for applications such as in-vehicle connectors that require compactness.

  According to the configuration of the above (3), when the connector housings are connected to each other, the relief portion secured at the rear end of the outer wall of one connector housing is from the rear end of the guide side wall of the other connector housing. Since the lock wall filled with the lock wall protruding inward and filling the escape portion functions as the side wall of the terminal accommodating chamber adjacent to the lock wall, the protection performance of the terminal is lowered by providing the escape portion. There is nothing.

  According to the combined connector of the present invention, each of the guide side walls extending upward from both sides of the outer wall on the upper surface of the housing body is provided with an elastic engagement piece along the guide direction of the guide side wall, Since the housing main body outer wall located below the other connector housing is provided with a locking projection that engages with the elastic engagement piece of the guide side wall of one connector housing, the elastic engagement piece As long as the stress is not concentrated on the base, a necessary length can be sufficiently obtained, and the length can be arbitrarily adjusted. Accordingly, there is no stress concentration on the elastic engagement piece base due to the short elastic engagement piece as in the prior art.

  Therefore, at the time of engagement / disengagement between the connector housings, it is possible to prevent the guide side wall provided with the elastic engagement piece base and the both outer walls in the vicinity thereof from being deformed by the force acting on the elastic engagement piece and the locking projection, It is possible to prevent deformation of the terminal accommodating chamber adjacent to both outer walls.

Therefore, it is possible to provide a highly reliable combined connector in which the terminal accommodated by the deformation of the terminal accommodating chamber adjacent to the both outer walls is not broken.
Further, even if the connector housing is thinned, the length of the elastic engagement piece is not affected, so that the entire combined connector can be thinned without deformation of the terminal housing chamber of the connector housing.

  In addition, the locking portion does not protrude outward from the connector housing, leading to an increase in size, and the connector housing can be made compact.

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

  FIG. 1 is an exploded perspective view of an embodiment of a combined connector according to the present invention, FIG. 2 is a side view for explaining operations when the connector housings constituting the combined connector shown in FIG. 1 are combined, and FIG. 4 is a side view of the united state of the united connector shown in FIG. 1, FIG. 4 is a perspective view of the united state of the united connector shown in FIG. 1, FIG. 5 is a cross-sectional view taken along line BB of FIG. FIG. 7 is an enlarged view and FIG. 7 is an explanatory view of a relief portion of the mating connector housing corresponding to the lock wall shown in FIG.

  The combined connector 1 of this embodiment is obtained by combining a plurality of connector housings 3A, 3B,.

  The upper surfaces of the housing bodies of the connector housings 3A and 3B are set as mating surfaces 3Aa and 3Ba when the other connector housings 3A and 3B are overlaid thereon. Further, the lower surfaces of the housing bodies of the connector housings 3A and 3B are set to mating surfaces 3Ab and 3Bb when they are superimposed on the other connector housings 3A and 3B.

  That is, the upper and lower surfaces of the housing bodies of the connector housings 3A and 3B are set to mating surfaces 3Aa, 3Ab, 3Ba, and 3Bb when connecting other connector housings, respectively.

In the connector housings 3A and 3B, as shown in FIG. 1, a plurality of terminal accommodating chambers 23 accommodating and holding female terminals 21 inserted from the respective rear end sides are arranged in a single layer. .
As shown in FIG. 4, a bus bar 25 is incorporated in the housing bodies of the connector housings 3 </ b> A and 3 </ b> B to electrically connect the terminals accommodated in the terminal accommodating chamber 23.

  The bus bar 25 includes tab terminal portions 25 a that are in contact with the tips of the female terminals 21 at an arrangement pitch of the terminal accommodating chambers 23.

  In the case of this embodiment, the mating surfaces 3Aa and 3Ba which are the housing main body upper surfaces of the connector housings 3A and 3B are the surfaces of the upper surface side outer walls 4A and 4B which also serve as the upper partition walls of the terminal accommodating chamber 23.

  The connection between the connector housings 3A and 3B stacked one above the other is realized by the engagement between the locking projection 11 on one connector housing 3A and the elastic engagement piece 13 on the other connector housing 3B.

  In each of the connector housings 3A, 3B..., The elastic engagement piece 13 is guided in the guide direction by the guide side walls 5A, 5B on the pair of guide side walls 5A, 5B respectively extending upward from both sides of the upper surface side outer walls 4A, 4B of the housing body. It is provided so as to extend along (slide direction).

  Further, in each of the connector housings 3A, 3B, etc., the outer surfaces 6A, 6B of the housing body located below the guide side walls 5A, 5B of the housing body are overlapped with the mating surfaces 3Ab, 4Bb on the lower surface side of the connector housing. A locking projection 11 is provided to engage the elastic engagement piece 13 on the guide side walls 5A and 5B on the other connector housing.

  In each of the connector housings 3A, 3B..., The locking projection 11 and the elastic engagement piece 13 are located in regions near the rear ends of both outer sides of the housing bodies of the connector housings 3A, 3B, as shown in FIGS. Equipped with the position shifted up and down. More specifically, the locking projection 11 is provided near the lower edge of each housing body, and the elastic engagement piece 13 is provided near the upper edge of each housing body.

  In the case of the united connector 1 of the present embodiment, as shown in FIG. 2, the connector housing 3B of the other (upper side in the figure) is connected to the front end side of the mating surface 3Aa of one (lower side in the figure) connector housing 3A. After overlapping the rear end side of the mating surface 3Bb, the connector housings 3A and 3B are aligned with each other in the direction of arrow C along the mating surface so that the rear end positions of the mating surfaces of the connector housings 3A and 3B are aligned. The arrangement of the locking projections 11 and the elastic engagement pieces 13 is set so that the locking projections 11 and the elastic engagement pieces 13 are engaged with each other by sliding.

  Further, in the case of the present embodiment, a guide rib 27 is provided on the upper edge of the guide side walls 5A and 5B provided with the elastic engagement piece 13 so as to protrude inward.

  In each connector housing 3A, 3B..., A pair of guide side walls 5A, 5B extending upward from both sides of the upper surface of the housing main body has both outer side surfaces 6A, 6A of other connector housings superimposed on the mating surfaces 3Aa, 3Ba. Equipped to sandwich 6B. The guide rib 27 covers the locking protrusion 11 of the mating connector housing to be overlaid, and restricts the moving direction of the outer wall 6B during the sliding operation between the connector housings.

  As shown in FIG. 1, in the connector housings 3A and 3B of the present embodiment, a guide groove 31 extending along the sliding direction of the connector housings 3A and 3B is formed in the upper region on the front end side of the housing body. Is provided. The guide groove 31 has a structure in which the opening is directed upward, and is provided on both sides of the housing.

  Further, the connector housings 3A and 3B are joined to the lower region of the front end of the housing main body by operating the two connector housings 3A and 3B together, and the locking projections 11 and the elastic engagement pieces of the respective connector housings 3A and 3B. 13 is provided, which is engaged with the above-described guide groove 31 when it is engaged with the connector 13, and that prevents the guide groove 31 from swinging in the groove width direction between the connector housings 3A and 3B. ing.

  The shake prevention protrusions 33 are formed in a rib shape protruding downward, and are provided on both sides of the housing in the same manner as the guide grooves 31.

  In the connector housings 3A, 3B,... Of the present embodiment, no open portion is set in the upper region of the terminal accommodating chamber 23. That is, the upper region of the terminal accommodating chamber 23 in each connector housing 3A, 3B... Is not only the region corresponding to the mounting position of the elastic engagement piece 13 and the locking projection 11 (that is, the region near the rear end of the housing). The entire region is covered with the upper surface side outer wall 4A (or 4B) connecting the outer walls 5A and 5A (or between 5B and 5B) of the housing.

  In addition to the elastic engagement pieces 13 and the locking projections 11, the connector housings 3 </ b> A, 3 </ b> B, etc. to be joined together are locks that lock the engagement state between these elastic engagement pieces 13 and the locking projections 11. A wall 28 is provided on the housing body.

  In the case of this embodiment, for example, the elastic engagement piece 13 of the connector housing 3A located on the lower side between the two connector housings 3A and 3B to be joined together is the rear end portion of the mating surface 3Bb of the upper connector housing 3B. Are overlapped with the front end portion of the mating surface 3Aa of the lower connector housing 3A, and then the two connector housings 3A and 3B are mutually aligned so that the rear end positions of the mating surfaces 3Aa and 3Bb of these two connector housings are aligned. Is slid along the mating surfaces 3Aa and 3Bb to engage the front end portion of the locking projection 11 as shown in FIG. 3 and restrict the movement of the locking projection 11 to the front end side.

  As shown in FIGS. 1 and 6, the lock wall 28 protrudes inward from the rear ends of the guide side walls 5A and 5B. For example, as shown in FIG. 2, the lock wall 28 is formed inside the pair of guide side walls 5A. By abutting against the rear ends of the pair of outer walls 6B and 6B of the housing body of the mating connector housing 3B, the elastic engagement piece 13 is regulated by restricting the movement of the locking projection 11 to the rear end side. And the engagement state of the locking projection 11 are locked.

  In each of the connector housings 3A, 3B, etc. of the present embodiment, as shown in FIG. 7, the lock wall 28 abutting on the rear end is provided at the rear end of the outer wall 6A, 6B of the connector housing against which the lock wall 28 abuts. An escape portion 29 whose end face position is retracted by the thickness T of the lock wall 28 is secured so as to be within the plan view outline of the connector housing body.

  In the connector housings 3A, 3B, etc. of the present embodiment, the outer walls 6B, 6B of the connector housing body with which the lock wall 28 abuts also serve as the side walls of the adjacent terminal accommodating chambers 23 as shown in FIG. ing. As shown in FIG. 6, the lock wall 28 located at the escape portion 29 by the connector housing mutual coupling body is a side wall of the terminal housing chamber 23 of the mating connector housing (ie, an extension of the outer walls 6B and 6B). And protects the accommodated terminal 21.

  According to the configuration of the combined connector 1 described above, the operation of combining the connector housings 3A and 3B is performed by overlapping the ends of the mating surfaces 3Aa and 3Bb as shown in FIG. The connector housings 3A and 3B are slid along the direction of 3Bb. For example, a pair of outer side surfaces 6B and 6B equipped with the locking projections 11 of one connector housing 3B located on the upper side are The inside of the pair of guide side walls 5A, 5A of the other connector housing 3A located on the side is located, and the position of the pair of outer side surfaces 6B, 6B is regulated by the guide ribs 27 on the pair of guide side walls 5A, 5A. .

  Therefore, the upper connector housing 3B can be prevented from being lifted and inclined from the lower connector housing 3A during the slide operation, and the mating surfaces 3Aa and 3Bb can be maintained in parallel during the connection operation of the two connector housings 3A and 3B. Thus, the sliding operation until the locking protrusion 11 and the elastic engagement piece 13 are engaged can be made smooth.

  According to the structure of the united connector 1, the elastic engagement piece 13 is guided in the guide direction (sliding direction) on the guide side walls 5A and 5B extending upward from both side portions of the housing main body upper surface side outer walls 4A and 4B. The elastic engagement piece 13 can be sufficiently long, and a large stress is applied to the base of the elastic engagement piece 13 when the elastic engagement piece 13 is deformed. In other words, deformation of the guide side walls 5A, 5B and the outer surfaces 6B, 6B is prevented, and deformation of the connector housings 3A, 3B is prevented.

  Therefore, when the connector housings 3A and 3B are engaged and disengaged, it is possible to prevent the outer side walls 6A and 6A and the outer side walls 6B and 6B from being deformed by the force acting on the elastic engaging piece 13 and the locking projection 11, It is possible to prevent deformation of the terminal accommodating chamber 23 adjacent to the outer walls 6A and 6B.

  Therefore, it is possible to provide a highly reliable union connector without the possibility that the terminal 21 accommodated by the deformation of the terminal accommodating chamber 23 adjacent to the outer walls 6A and 6B is broken.

  Further, according to the configuration of the combined connector 1 described above, the lock wall 28 that locks the engagement state between the elastic engagement piece 13 and the locking projection 11 is formed by the elastic engagement piece 13 as shown in FIG. The guide side walls 5A and 5B are provided so as to project inward from the rear ends of the guide side walls 5A and 5B. Further, when the connector housings are connected to each other, the guide side walls 5A and 5B are accommodated in the clearance 29 secured at the rear end of the outer wall of the mating connector housing Therefore, since the abutting portion contacts the rear end of the outer wall 6B, 6B of the mating connector housing, the engaging portion protrudes outward from the connector housing, leading to an increase in size, and to an in-vehicle connector that is required to be compact. It is also advantageous for use.

  Furthermore, according to the configuration of the combined connector 1 described above, when the connector housings are connected to each other, the escape portion 29 secured at the rear end of the outer wall of one connector housing is the guide side wall of the other connector housing. Since the lock wall 28 filled with the lock wall 28 protruding inward from the rear ends of 5A and 5B and filling the escape portion 29 functions as a side wall of the terminal accommodating chamber 23 adjacent thereto, the escape portion 29 The protective performance of the terminal 21 does not deteriorate due to the provision of.

  Further, in the combined connector 1 of the present embodiment, the front end sides of the connector housings 3A and 3B apart from the connecting portion between the locking projection 11 and the elastic engagement piece 13 between the combined connector housings 3A and 3B are By engaging the guide groove 31 provided in one connector housing 3A and the shake preventing projection 33 provided in the other connector housing 3B, the guide groove 31 is prevented from swinging in the groove width direction.

  As a result, the effect of preventing any one of the connector housings from being tilted by the action of an external force between the combined connector housings 3A and 3B is improved, and the connector housings 3A and 3B are tilted by the tilt of either one of the connector housings. It is possible to prevent the mutual connection from being disconnected.

  Further, in the combined connector 1 of this embodiment, each connector housing 3A, 3B... 3A, 3B is accommodated in a plurality of terminal accommodating chambers 23 for accommodating and holding inserted terminals, and in the terminal accommodating chambers 23. A bus bar 25 is provided for electrically connecting the terminals.

  Therefore, by increasing / decreasing the number of connector housings 3A, 3B to be combined, it is possible to easily increase / decrease the number of circuits branch-connected via the bus bar 25, and the number of circuits branch-connected via the combined connector 1 It becomes easy to deal with changes and the like.

  Moreover, since the connector housings 3A and 3B to be combined have the same structure, the combined connector 1 of the present embodiment can suppress an increase in the types of connector housings.

  However, the connector housings to be combined do not necessarily have the same structure, and may have different structures without departing from the gist of the present invention.

  In the connector housings 3A, 3B,... Of the present embodiment, the entire upper region of the terminal accommodating chamber 23 is covered by the upper surface side outer walls 4A, 4B that also serve as the upper partition wall of the terminal accommodating chamber 23. However, the outer wall of the housing is connected to at least the region corresponding to the mounting position of the elastic engagement piece 13 and the locking projection 11 (that is, the region near the rear end of the housing) in the upper region of the terminal accommodating chamber 23. Even if it is the structure covered with the upper surface side outer wall 4A (or 4B), the purpose of reinforcing the rigidity of the outer wall of each connector housing can be achieved.

  Therefore, the upper surface side outer walls 4A and 4B that connect the outer side walls of each connector housing may be provided at least in a region corresponding to the mounting position of the elastic engagement piece 13 and the locking projection 11. In the region, the upper part of the terminal accommodating chamber 23 may be opened in accordance with the purpose of reducing the weight or improving the terminal mounting property.

It is a disassembled perspective view of one Embodiment of the united connector which concerns on this invention. It is a side view explaining operation when uniting the connector housings which comprise the united connector shown in FIG. It is a side view of the united state of the united connector shown in FIG. It is a perspective view of the united state of the united connector shown in FIG. It is BB sectional drawing of FIG. It is the D section enlarged view of FIG. It is explanatory drawing of the relief part of the other party connector housing corresponding to the lock wall shown in FIG. It is a disassembled perspective view of the conventional united connector. It is a perspective view of the united state of the united connector shown in FIG. It is a longitudinal cross-sectional view of the united connector shown in FIG.

Explanation of symbols

1 Combined connector 3A, 3B Connector housing 3Aa, 3Ab, 3Ba, 3Bb Mating surface 4A, 4B Top side outer wall 5A, 5B Guide side wall 6A, 6B Outer side wall 11 Locking protrusion 13 Elastic engagement piece 21 Female terminal 23 Terminal accommodation Chamber 25 Bus bar 27 Guide rib 28 Lock wall 29 Escape portion 31 Guide groove 33 Shaking prevention protrusion

Claims (3)

The at least two connector housings including at least two connector housings, and the mating surfaces of the at least two connector housings are overlapped with each other, and a locking projection provided on one of the at least two connector housings and the other connector A combined connector used in a form in which the at least two connector housings are combined by engagement with an elastic engagement piece provided on the housing,
Each of the at least two connector housings has a housing body;
The surface of the housing body upper surface side outer wall that becomes the upper partition wall of the terminal housing chamber of the housing body is a mating surface of the one connector housing when the other connector housing is overlaid on the one connector housing. And
Each of the at least two connector housings further includes guide sidewalls extending upward from both side portions of the housing main body upper surface side outer wall,
Each of the guide side walls is provided with the elastic engagement piece along a guide direction by the guide side wall, and the housing main body outer wall positioned below each of the guide side walls overlaps with the other connector housing. The locking projection to be engaged with the elastic engagement piece of the guide side wall of the one connector housing is provided,
After the rear end portion of the mating surface of the other connector housing is superimposed on the front end portion of the mating surface of the one connector housing, the rear end positions of the mating surfaces of the at least two connector housings are aligned. By sliding the at least two connector housings along the mating surface, the elastic engagement piece engages with the front end portion of the locking projection, thereby restricting movement of the engagement projection to the front end side. A combined connector characterized by the above. Each of the at least two connector housings has a lock wall that locks the engagement state between the elastic engagement piece and the locking projection;
The lock wall is provided so as to protrude inward from a rear end of the guide side wall, and the other inserted between the guide side walls of the one connector housing when the at least two connector housings are joined together. The connector housing is brought into contact with the rear end of the outer wall of the housing main body, thereby restricting the movement of the engagement protrusion to the rear end side, and the engagement state between the elastic engagement piece and the locking protrusion is set. Lock and
At the rear end of the outer wall of the housing main body against which the lock wall abuts, the end face position is retracted by an amount corresponding to the thickness of the lock wall so that the abutted lock wall is within the plan view outline of the housing main body. The united connector according to claim 1, wherein a portion is secured.   The outer wall of the housing main body with which the lock wall abuts also serves as a side wall of the terminal accommodating chamber, and the lock of the one connector housing located at the escape portion when the at least two connector housings are joined together. The united connector according to claim 2, wherein the wall functions as a side wall of a terminal accommodating chamber of the other connector housing.

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