JP2013110024A - Connector with cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a connector with a cover, which can prevent a lock arm in a connector housing from being broken due to excess displacement and never cause complication of a connector housing structure resulting in degradation of moldability of the connector housing.SOLUTION: A connector 1 with a cover includes a connector housing 20, and a connector cover 40 connected to a rear end 20a of the connector housing 20. On a terminal push-in projecting piece 411 of the connector cover 40 opposite to a depression part 23 of lock release of the connector housing 20, there is bulkily formed an arm displacement regulation part 414 for regulating displacement of a lock arm 22 by abutting on the lock arm 22 when a flexible deformation amount of the lock arm 22 due to depression of the depression part 23 for lock release reaches a specified value.

Description

  The present invention includes a connector housing that is fitted and connected to a mating connector, and a connector cover that is fitted and attached to the rear end of the connector housing and restricts the direction in which the electric wire is led out from the rear end of the connector housing. The present invention relates to a connector with a cover.

17 and 18 illustrate a connector with a cover disclosed in Patent Document 1 below.
The connector with cover 100 is a connector housing 110 that is fitted and connected to a mating connector, and a connector that is fitted and attached to the rear end of the connector housing 110 and regulates the direction in which an electric wire is led out from the rear end of the connector housing 110. And a cover 120.

The connector housing 110 is formed at a housing body 111 having a plurality of terminal insertion holes, a lock arm 112 projecting from an upper wall surface 111a that is one side surface of the housing body 111, and an end of the lock arm 112. The unlocking pressing portion 113 and cover coupling means 114 provided on both side walls on the rear end 111b side of the housing main body 111 are provided.
In the connector housing 110, the electric wire connected to the terminal fitting to be accommodated is led out from the rear end 111b of the housing main body 111 in the direction indicated by the arrow X1.

  The lock arm 112 is formed by forming an engaging portion (not shown) with a mating connector in an intermediate portion of an arm main body 112a that is provided so as to rise from the front end side of the housing main body 111 and extend to the rear end side. When the 111 is fitted and connected to the mating connector, the mating connector engaging means engages with the engaging portion, so that the housing body 111 is coupled to the mating connector.

  The unlocking pressing portion 113 is formed at the rear end of the lock arm 112. This unlocking pressing portion 113 is pressed when releasing the engagement between the lock arm 112 and the mating connector engaging means. By depressing the unlocking pressing portion 113, the lock arm 112 is bent in the unlocking direction (upper wall surface 111a side), and the engagement between the lock arm 112 and the mating connector is released.

  The cover coupling unit 114 includes a cover guide rib 116 and a cover locking portion 117.

  The cover guide rib 116 is formed in a rib shape extending along the fitting and mounting direction of the connector cover 120 with respect to the rear end 111b of the housing body 111 (the direction opposite to the arrow X1 direction in FIG. 17). It is formed on both outer side surfaces 111c. The cover guide rib 116 guides the connector cover 120 in the fitting direction when the connector cover 120 is fitted to the rear end 111b.

  The cover locking portion 117 is engaged with the connector cover 120 when the fitting of the connector cover 120 to the rear end 111b is completed, and fixes the connector cover 120.

  The connector cover 120 includes a housing fixing part 121 fitted and attached to the rear end of the connector housing 110, and a wire guide wall part 122 formed integrally with the rear end of the housing fixing part 121.

  The housing fixing portion 121 has a cylindrical shape or a bowl shape that accommodates an electric wire led out from the rear end 111 b of the housing main body 111. The housing fixing portion 121 includes a rib engaging groove 124 and a housing engaging portion 125 on both side wall portions 121 a covering both side surfaces of the rear end 111 b of the connector housing 110.

  The rib engaging groove 124 restricts the moving direction of the connector cover 120 when the connector cover 120 is fitted to the connector housing 110 by inserting the cover guide rib 116.

  The housing engaging portion 125 engages with the cover locking portion 117 when the connector cover 120 reaches the normal fitting completion position with respect to the connector housing 110, so that the connector cover 120 is engaged with the rear end of the housing body 111. It is a latching protrusion fixed to 111b.

  As shown in FIG. 17, a terminal pushing protrusion 126 is provided on the housing fixing portion 121.

  The terminal pushing protrusion 126 is inserted into the terminal insertion hole of the housing main body 111 when the connector cover 120 is fitted to the housing main body 111, and the terminal fitting in the halfway insertion state in the terminal insertion hole is normally inserted. Push into position.

  The wire guide wall portion 122 is provided so as to extend from the rear end of the housing fixing portion 121 in a direction (in the direction of arrow Y1 in FIG. 17) orthogonal to the lead-out direction of the wire in the housing body 111. The electric wire guide wall portion 122 changes the direction of the electric wire led out from the housing main body 111 in a direction orthogonal to the lead-out direction from the housing main body 111 and leads it out.

  The electric wire guide wall 122 in Patent Document 1 is formed in a rigid structure that is difficult to be deformed in a direction orthogonal to the direction in which the electric wire is led out (the direction of the arrow Y1).

JP 2000-348810 A

  By the way, in the case of the connector 100 with a cover in the above-mentioned patent document 1, when releasing from the mating connector, the lock release pressing portion 113 is pressed to bend the lock arm 112 in the engagement releasing direction. However, the cover-equipped connector 100 of Patent Document 1 does not have a means for restricting the amount of bending displacement of the lock arm 112 when the lock release pressing portion 113 is pressed.

  For this reason, when the lock release pressing portion 113 is strongly pressed, the lock arm 112 may be excessively bent and displaced, and the lock arm 112 may be damaged.

  In order to prevent the occurrence of such inconvenience, for example, a mechanism that restricts the amount of displacement of the lock arm 112 when the unlocking pressing portion 113 is pressed is added to the housing body 111 or the lock arm 112. It is possible.

  However, if a mechanism for restricting the amount of bending displacement of the lock arm 112 is added to the housing main body 111 or the lock arm 112, the structure of the connector housing 110 becomes complicated. There was a possibility of inviting.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-mentioned problems, and can prevent damage due to excessive displacement of the lock arm in the connector housing, and also causes a decrease in the moldability of the connector housing. It is an object of the present invention to provide a connector with a cover that does not cause a complicated structure.

The above-described object of the present invention is achieved by the following configuration.
(1) a connector housing that is fitted and connected to the mating connector, and a connector cover that is coupled to the rear end of the connector housing and regulates the direction in which the electric wire is led out from the rear end of the connector housing;
The connector housing includes a housing main body having a plurality of terminal insertion holes, and an engaging portion on an arm main body that is provided so as to rise from the front end side of one side surface of the housing main body and extend to the rear end side. A lock arm that engages with the mating means to couple the housing body to the mating connector, and a lock arm formed at the rear end of the lock arm to release the engagement between the lock arm and the mating connector. A pressing part for unlocking pressed by
The connector cover includes a housing fixing portion coupled to a rear end of the connector housing, and a terminal that is inserted into the terminal insertion hole along with the connection to the rear end of the connector housing and is inserted in the terminal insertion hole. A terminal pushing protrusion that pushes the metal fitting into a normal insertion completion position, and an electric wire guide wall that regulates the lead-out direction of the electric wire led out from the housing body,
A connector with a cover comprising:
The lock arm comes into contact with the lock arm when the amount of flexure displacement of the lock arm due to the pressing of the unlocking pressing portion reaches a predetermined value on the terminal pushing protrusion facing the unlocking pressing portion. A connector with a cover, characterized in that an arm displacement restricting portion for restricting the displacement of the cover is raised.

  According to the configuration of (1) above, in order to release the connector with cover from the mating connector, the lock arm is flexed and displaced in the disengagement direction by depressing the unlocking pressing portion provided in the connector housing. In this case, when the amount of displacement of the lock arm reaches a specified value, the lock arm abuts on the arm displacement restricting portion formed on the terminal pushing protrusion of the connector cover so that the displacement of the lock arm is further increased. Is regulated.

  Therefore, by appropriately setting the contact position between the arm displacement restricting portion on the terminal pushing protrusion of the connector cover and the lock arm, the amount of displacement of the lock arm during the pressing operation of the unlocking pressing portion is excessive. It is possible to prevent the damage due to excessive displacement of the lock arm in the connector housing.

  Moreover, since the arm displacement restricting portion that restricts the flexural displacement of the lock arm during the unlocking operation is provided separately from the connector housing and provided in the connector cover coupled to the rear end of the connector housing, the moldability of the connector housing is reduced. Therefore, the structure of the connector housing, which causes a decrease in the connector, is not complicated.

  According to the connector with a cover according to the present invention, the lock arm is flexed and displaced in the disengagement direction by depressing the unlocking depressing portion provided in the connector housing in order to detach the connector with the cover from the mating connector. In this case, when the amount of displacement of the lock arm reaches a specified value, the lock arm abuts on the arm displacement restricting portion formed on the terminal pushing protrusion of the connector cover so that the displacement of the lock arm is further increased. Is regulated. Therefore, by appropriately setting the contact position between the arm displacement restricting portion on the terminal pushing protrusion of the connector cover and the lock arm, the amount of displacement of the lock arm during the pressing operation of the unlocking pressing portion is excessive. It is possible to prevent the damage due to excessive displacement of the lock arm in the connector housing.

  Moreover, since the arm displacement restricting portion that restricts the flexural displacement of the lock arm during the unlocking operation is provided separately from the connector housing and provided in the connector cover coupled to the rear end of the connector housing, the moldability of the connector housing is reduced. Therefore, the structure of the connector housing, which causes a decrease in the connector, is not complicated.

It is an exploded perspective view of one embodiment of a connector with a cover concerning the present invention. It is a side view of the connector housing of FIG. It is the perspective view which looked at the connector housing of FIG. 1 from the rear end side. It is a longitudinal cross-sectional view (AA sectional drawing of FIG. 3) of the connector housing of FIG. It is a side view of the connector cover of FIG. It is a top view of the connector cover of FIG. It is an enlarged view of the B section of FIG. It is a perspective view of the assembly completion state of the connector with a cover of one Embodiment. It is a perspective view from the rear-end surface side in the assembly completion state of the connector with a cover of one Embodiment. It is a front view of the connector with a cover shown in FIG. It is CC sectional drawing of FIG. It is an enlarged view of the D section of FIG. It is EE sectional drawing of FIG. It is an enlarged view of the F section of FIG. It is an enlarged view of the G section of FIG. FIG. 15 is an enlarged view of a state in which the lock arm that has been deflected and displaced by pressing the unlocking pressing unit illustrated in FIG. 14 is in contact with the arm displacement regulating unit and further displacement is regulated. It is a side view of the state before the assembly of the conventional connector with a cover. It is a side view after the assembly of the connector with a cover shown in FIG.

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

  1 to 16 show an embodiment of a connector with a cover according to the present invention, FIG. 1 is an exploded perspective view of the connector with a cover according to an embodiment, and FIG. 2 is a side view of the connector housing of FIG. 3 is a perspective view of the connector housing of FIG. 1 as viewed from the rear end side, FIG. 4 is a longitudinal sectional view of the connector housing of FIG. 1 is a plan view of the connector cover of FIG. 1, FIG. 7 is an enlarged view of a portion B of FIG. 1, FIG. 8 is a perspective view of the assembled connector of the cover according to one embodiment, and FIG. FIG. 10 is a front view of the cover-attached connector shown in FIG. 8, FIG. 11 is a cross-sectional view taken along the line CC in FIG. 10, and FIG. FIG. 13 is an EE cross-sectional view of FIG. 10, and FIG. 15 is an enlarged view of portion F, FIG. 15 is an enlarged view of portion G of FIG. 9, and FIG. 16 is a view in which the lock arm that is flexibly displaced by pressing the unlocking pressing portion shown in FIG. It is an enlarged view of the state where the further displacement is regulated.

  The connector with cover 1 according to this embodiment includes a connector housing 20 that is fitted and connected to a mating connector, and an electric wire (not shown) that is coupled to the rear end 20a of the connector housing 20 and is led out from the rear end 20a of the connector housing 20. And a connector cover 40 that regulates the direction of derivation.

  The connector housing 20 is formed at a housing main body 21 having a plurality of terminal insertion holes 211, a lock arm 22 projecting from a housing upper surface 21 a that is one side surface of the housing main body 21, and a rear end portion of the lock arm 22. The unlocking pressing unit 23 is provided. The rear end 20 a of the connector housing 20 is also the rear end of the housing body 21.

  As shown in FIG. 4, the plurality of terminal insertion holes 211 in the housing body 21 are formed to penetrate from the rear end 20 a toward the front end. As shown in FIG. 4, the terminal fitting 31 that is crimp-connected to the end portion of the electric wire is inserted into and attached to the terminal insertion hole 211. A lance 25 is provided in the terminal insertion hole 211 as shown in FIG. The lance 25 locks a terminal fitting (not shown) inserted up to a specified fitting completion position to prevent the terminal fitting from coming off.

  As shown in FIGS. 1 and 2, cover guide ribs 26 and cover locking portions 27 are provided on both outer side surfaces near the rear end 20 a of the housing body 21.

  The cover guide rib 26 is formed on the side surface of the rear end 20a in a rib shape extending along the fitting and mounting direction of the connector cover 40 with respect to the rear end 20a (the arrow X2 direction in FIG. 1). The cover guide rib 26 guides the connector cover 40 in the fitting direction when the connector cover 40 is fitted to the rear end 20a of the housing body 21.

  The cover locking portion 27 engages with the connector cover 40 when the fitting of the connector cover 40 to the rear end 20a is completed, and fixes the connector cover 40.

  As shown in FIG. 4, the lock arm 22 rises from a position near the front end of the housing upper surface 21a in the housing main body 21 and extends to the rear end 20a side of the housing main body 21 so as to be intermediate between the cantilevered flexible arms 22a. It is the structure which provided the recess 22b for engagement in the part.

  When the housing main body 21 is fitted and mounted on the mating connector, the lock arm 22 couples the housing main body 21 to the mating connector by engaging the engaging means of the mating connector with the recess 22b.

  The unlocking pressing portion 23 is a pressing portion formed at the rear end portion of the lock arm 22 located near the rear end 20 a of the housing body 21. This unlocking pressing portion 23 is pressed in the direction of arrow Y2 in FIG. 1 when releasing the engagement between the lock arm 22 and the mating connector engaging means. When the unlocking pressing portion 23 is pressed in the direction of the arrow Y2 in FIG. 1, the lock arm 22 bends downward (housing upper surface 21a side), and the engagement means of the mating connector and the recess 22b of the lock arm 22 are engaged. It can be canceled.

  As shown in FIGS. 5 and 6, the connector cover 40 includes a housing fixing portion 41 and an electric wire guide wall portion 42 formed integrally with the rear end of the housing fixing portion 41.

  The housing fixing portion 41 is a part that is coupled to the rear end 20a by being fitted to the rear end 20a of the connector housing 20. The housing fixing portion 41 has a substantially U-shaped cross-sectional structure that fits on both side surfaces of the rear end 20a of the housing main body 21 and the three wall surfaces of the lower surface. As shown in FIGS. 1 and 5, the housing fixing portion 41 of the present embodiment has a terminal pushing protrusion 411, a rib engaging groove 412, a housing engaging portion 413, and an arm displacement restricting portion on the front end side thereof. 414.

  The terminal pushing protrusion 411 is inserted into the terminal insertion hole 211 of the housing main body 21 in accordance with the fitting of the housing fixing portion 41 to the connector housing 20, and the terminal fitting in the middle of the terminal insertion hole 211 is properly connected. Push into the insertion completion position.

  The rib engaging groove 412 and the housing engaging portion 413 are formed on both side wall portions 415 of the housing fixing portion 41 that covers both side surfaces of the rear end 20a of the connector housing 20.

  As shown in FIG. 8, the rib engaging groove 412 is configured so that the movement direction of the housing fixing portion 41 when the housing fixing portion 41 is fitted to the connector housing 20 is fitted in the fitting direction by inserting the cover guide rib 26. To regulate.

  As shown in FIGS. 11 and 12, the housing engaging portion 413 is engaged with the cover locking portion 27 when the housing fixing portion 41 reaches the normal fitting completion position with respect to the connector housing 20. Thus, it is a protrusion for fixing the housing fixing portion 41 to the rear end 20a of the connector housing 20.

  In a state in which the connector cover 40 is fitted and attached to the rear end of the connector housing 20, the two terminal pushing protrusions 411 positioned at the uppermost position in the housing fixing portion 41 are used for unlocking as shown in FIGS. 13 to 15. It has entered the lower side of the unlocking pressing portion 23 facing the pressing portion 23.

  As shown in FIG. 13 and FIG. 14, the arm displacement restricting portion 414 is a convex portion formed on the two terminal pushing protrusions 411 facing the unlocking pressing portion 23. As shown in FIG. 16, the arm displacement restricting portion 414 comes into contact with the lock arm 22 when the amount of bending displacement of the lock arm 22 due to the depression of the unlocking push-down portion 23 reaches a specified value. The displacement of the lock arm 22 is restricted so that the 22 is not further bent and displaced.

  As shown in FIG. 13, the wire guide wall portion 42 extends from the rear end of the housing fixing portion 41 in a direction (arrow Y3 in FIG. 13) orthogonal to the direction in which the electric wire is drawn out in the housing body 21 (arrow X3 direction in FIG. 13). The electric wire led out from the housing main body 21 is changed in direction in the vertical upward direction perpendicular to the lead-out direction from the housing main body 21 and led out.

  According to the configuration of the cover-equipped connector 1 of the embodiment described above, in order to release the cover-equipped connector 1 from the mating connector, the lock 1 is locked by pressing the unlocking pressing portion 23 provided in the connector housing 20. When the arm 22 is deflected and displaced in the disengagement direction, when the amount of deflection displacement of the lock arm 22 reaches a specified value, the arm 22 is raised on the terminal pushing protrusion 411 of the connector cover 40 as shown in FIG. When the lock arm 22 comes into contact with the formed arm displacement restricting portion 414, further displacement of the lock arm 22 is restricted.

  Accordingly, by appropriately setting the contact position between the arm displacement restricting portion 414 on the terminal pushing protrusion 411 of the connector cover 40 and the lock arm 22, the lock arm at the time of depressing operation of the unlocking depressing portion 23 is set. It is possible to prevent the displacement amount of 22 from becoming excessive, and it is possible to prevent damage due to the excessive displacement of the lock arm 22 in the connector housing 20.

  In addition, the arm displacement restricting portion 414 that restricts the deflection displacement of the lock arm 22 during the unlocking operation is provided separately from the connector housing 20 and is provided in the connector cover 40 coupled to the rear end of the connector housing 20. There is no complication of the structure of the connector housing 20 that causes the moldability of the connector housing 20 to deteriorate.

  In addition, the connector with a cover of this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably.

  For example, the specific raised shape or the like of the arm displacement restricting portion is not limited to the structure of the above embodiment, and the design can be changed as appropriate.

DESCRIPTION OF SYMBOLS 1 Connector with cover 20 Connector housing 20a Rear end 21 Housing body 22 Lock arm 23 Unlocking pressing part 40 Connector cover 41 Housing fixing part 42 Electric wire guide wall part 411 Terminal pushing protrusion 414 Arm displacement regulation part

Claims (1)

A connector housing that is fitted and connected to the mating connector; and a connector cover that is coupled to the rear end of the connector housing and regulates the direction in which the electric wire is led out from the rear end of the connector housing,
The connector housing includes a housing main body having a plurality of terminal insertion holes, and an engaging portion on an arm main body that is provided so as to rise from the front end side of one side surface of the housing main body and extend to the rear end side. A lock arm that engages with the mating means to couple the housing body to the mating connector, and a lock arm formed at the rear end of the lock arm to release the engagement between the lock arm and the mating connector. A pressing part for unlocking pressed by
The connector cover includes a housing fixing portion coupled to a rear end of the connector housing, and a terminal that is inserted into the terminal insertion hole along with the connection to the rear end of the connector housing and is inserted in the terminal insertion hole. A terminal pushing protrusion that pushes the metal fitting into a normal insertion completion position, and an electric wire guide wall that regulates the lead-out direction of the electric wire led out from the housing body,
A connector with a cover comprising:
The lock arm comes into contact with the lock arm when the amount of flexure displacement of the lock arm due to the pressing of the unlocking pressing portion reaches a predetermined value on the terminal pushing protrusion facing the unlocking pressing portion. A connector with a cover, characterized in that an arm displacement restricting portion for restricting the displacement of the cover is raised.

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