JP2017228475A - Retainer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the design change even if a wire arranging direction changes.SOLUTION: Disclosed is a retainer 10 which is attached to a drawing part 63 of a wire W of a connector housing 61 in which a terminal 70 having the wire W connected thereto is housed. This retainer includes; a retainer body 20 in which a terminal holding part 25 holding the terminal 70 at a predetermined position of the connector housing 61 is provided; and a wire regulation member 40 which is a separate member from the retainer body 20, which can be fixed to the retainer body 20 and can regulate the drawing direction from the connector housing 61.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a retainer attached to a connector housing.

  Conventionally, in order to charge a battery of an electric vehicle or a plug-in hybrid vehicle, a vehicle-side connector fitted to a charging connector connected to an external power source is provided on the vehicle side. As this type of vehicle-side connector, for example, the one described in Japanese Patent Application Laid-Open No. 2015-216090 is known. This connector includes a connector housing provided with a cavity for accommodating a terminal connected to an electric wire, and a retainer for fixing the terminal at a predetermined position by being attached to a lead-out portion of the electric wire from the connector housing. Moreover, in order to suppress the deformation | transformation etc. of the electric wire when the electric wire connected to the terminal is pulled, the retainer is provided with the electric wire holding part which can fix an electric wire with a binding member.

Japanese Patent Laid-Open No. 2015-216090

By the way, in this type of vehicle-side connector, the position of the terminal and the like are strictly determined by a common standard, and therefore, a retainer that holds the terminal requires a considerable degree of accuracy. For this reason, in order to design a retainer, it is necessary to repeat trial production, and there is a situation that the design cost becomes high.
On the other hand, if the vehicle type is different, the retainer specifications differ from vehicle type to vehicle type, such as the wiring direction of the wires and the position of the retainer's wire holding part, etc., and it is necessary to design a dedicated retainer for each vehicle type. This increases the overall design cost. Moreover, the fact that the retainer is different for each vehicle type requires the preparation of a retainer mold for each vehicle type, which increases the overall manufacturing cost.

  The retainer disclosed in the present specification is a retainer that is attached to a lead-out portion of the electric wire of a connector housing that accommodates a terminal to which an electric wire is connected, and the terminal that holds the terminal in a predetermined position of the connector housing. A retainer main body provided with a holding portion and a wire regulating member which is a separate member from the retainer main body and can be fixed to the retainer main body and can regulate the direction in which the electric wire is pulled out from the connector housing.

  According to such a configuration, the retainer main body provided with the terminal holding portion for holding the terminal and the wire regulating member having different specifications depending on the wiring direction of the electric wires are separate members. Therefore, the retainer body provided with a terminal holding part that is generally required for accuracy can be made common regardless of the wiring direction of the electric wires, so there is no need for a dedicated design of the retainer for each wiring direction. Design cost can be reduced. In addition, since the retainer main body is made common, a collective number of manufacturing can be expected, so that the manufacturing cost can be reduced.

As an embodiment of the retainer disclosed in this specification, the following configuration may be adopted.
The electric wire regulating member may include a fixing portion for fixing to the retainer main body by screwing, and an electric wire routing piece that protrudes in the wiring direction of the electric wire and can fix the electric wire by a binding member. .

  In such a configuration, the electric wire is fixed to the electric wire routing piece by the binding member. And when an electric wire is pulled in the direction away from an electric wire control member, the tensile force which an electric wire receives is transmitted to an electric wire control member via a binding member. At this time, the wire regulating member is fixed to the retainer body by bolting. That is, since the wire regulating member is firmly fixed to the retainer body, the wire regulating member can resist the tensile force, and the deformation of the electric wire can be suppressed against the tensile force.

  A pair of the fixing portions may be provided on the electric wire regulating member, and the fixing portion may be attached to the retainer main body by changing the direction of the electric wire regulating member so that the protruding direction of the electric wire routing piece is changed. .

  In such a configuration, since the electric wire regulating member is fixed to the retainer main body at two places, the strong tensile force of the electric wire can be resisted. Further, a single wire regulating member can correspond to a plurality of wire drawing directions.

  According to the retainer disclosed in this specification, it is possible to easily change the design even if the wiring direction of the electric wire is changed.

The perspective view of the retainer in embodiment Retainer front view Rear view of retainer Sectional drawing in the IV-IV position in FIG. Side view of retainer Retainer bottom view Disassembled perspective view of retainer Rear view of retainer body Front view of wire regulating member The perspective view of the retainer in the state which changed the attachment direction of the electric wire control member

<Embodiment>
Embodiments will be described with reference to FIGS. 1 to 10.
As shown in FIGS. 1 and 5, the retainer 10 of this embodiment is mounted on a connector housing 61 of a connector 60 that is attached to a body or the like of an automobile, and holds a terminal 70 connected to an electric wire W. Further, the electric wire W drawn out from the connector 60 is connected to a battery mounted on the automobile, and the battery is charged by fitting a charging connector provided in the charger. ing. The position of the terminal 70 is determined based on the standard so that the connector 60 can be fitted with various charging connectors.

  The retainer 10 also includes a retainer body 20 and a wire restriction member 40 that restricts the direction in which the electric wire W is pulled out. In the following description, with respect to the front-rear direction, the right side in FIG. 5 (the direction in which the retainer 10 is attached to the connector housing 61) is the front side, and the left side in FIG. Further, regarding the vertical direction, FIG. 2 is used as a reference, and the upper side of FIG. 2 is the upper side and the lower side of FIG. 2 is the lower side.

  As shown in FIG. 5, the connector housing 61 is fixedly attached to the vehicle body and can accommodate the terminal 70. The electric wire W can be drawn out from the electric wire drawing portion 63 provided at the rear end portion of the connector housing 61 in a state where the terminal 70 connected to the electric wire W is accommodated in the connector housing 61. The attached retainer 10 can be locked to the rear end portion of the connector housing 61.

  As shown in FIG. 5, the terminal 70 is a male terminal, and includes a connection portion 71 with a counterpart terminal, a columnar support portion 73, a flange portion 75, and a wire connection portion connected to the electric wire W. It has. The connection portion 71 has a round pin shape, and the support portion 73 has a columnar shape having a diameter larger than that of the connection portion 71 and is held in the connector housing 61. The flange portion 75 is provided at the rear end portion of the support portion 73, and has a disk shape with a larger diameter than the support portion 73.

  As shown in FIGS. 7 and 8, the retainer main body 20 includes a flat plate-like substrate portion 21 that is circular in rear view. The board portion 21 is formed with five groove portions 23 through which the electric wires W connected to the terminals 70 (see FIG. 5) can be inserted from the outside in the radial direction. Each groove portion 23 is cut and formed in a form that opens outward in the radial direction of the substrate portion 21, and the inner edge 23 </ b> A (the edge located on the center side of the substrate portion 21) of the groove portion 23 is formed in a semicircular shape. Has been.

  As shown in FIGS. 2 and 7, a terminal holding portion 25 is provided on the front surface of the substrate portion 21. The terminal holding portion 25 protrudes forward from the inner edge 23 </ b> A of the groove portion 23. The terminal holding portion 25 holds the wire connecting portion of the terminal 70 (see FIG. 5), and the front end surface of the terminal holding portion 25 abuts the rear end surface of the flange portion 75, thereby holding the terminal 70 in a predetermined position. To do.

  As shown in FIGS. 5 and 7, a peripheral wall portion 27 that is cylindrical and protrudes forward is provided on the periphery of the substrate portion 21. The peripheral wall portion 27 is provided in a portion of the outer peripheral edge of the substrate portion 21 excluding the opening portion of the groove portion 23. A plurality of locking portions 29 that can be locked to the connector housing 61 are provided on the peripheral wall portion 27.

  As shown in FIGS. 4 and 7, a cylindrical boss portion 31 protrudes rearward on the rear surface of the substrate portion 21. Two boss portions 31 are provided on the outer side in the radial direction of the substrate portion 21 and arranged substantially at the center in the vertical direction of the substrate portion 21. The boss portion 31 is provided on the outer side in the radial direction than the rear end edge 23 </ b> A of the groove portion 23, and is provided at a position that does not hinder the drawing of the electric wire W. Further, reinforcing ribs 31 </ b> A are provided from the outer periphery of the boss portion 31 to the substrate portion 21. The protruding dimension (the dimension in the front-rear direction) of the reinforcing rib 31 </ b> A is lower than the boss portion 31 and larger than the outer diameter dimension of the electric wire W. A bolt hole 33 into which the bolt B can be inserted is provided at the center position of the boss portion 31.

  As shown in FIGS. 7 and 9, the wire restriction member 40 includes a restriction main body 41. The regulation main body 41 has a substantially rectangular shape in front view that is long in the width direction (left-right direction) and short in the up-down direction, and has a semicircular flat plate shape at both ends. The dimension in the width direction of the restriction main body 41 is the same as the diameter (dimension in the width direction) of the substrate portion 21 of the retainer main body 20.

  Fixed portions 43 are provided at both ends in the width direction (longitudinal direction) of the restriction main body portion 41. The fixing portion 43 is provided with a bolt insertion hole 43A for inserting the bolt B. A region where the head of the bolt B comes into contact with the outer periphery of the bolt insertion hole 43 </ b> A serves as a fixed portion 43, and the front surface of the fixed portion 43 contacts the rear end surface of the boss portion 31. The fixed portion 43 is the same size or slightly larger than the rear end surface of the boss portion 31.

  Further, a protective wall 45 protrudes from the periphery of the fixed portion 43 in the front-rear direction. The protective wall 45 includes a front protective wall 45A that protrudes forward from the periphery of the fixed portion 43, and a rear protective wall 45B that protrudes rearward from the peripheral edge of the fixed portion 43. The rear protective wall 45B has a U-shape in a rear view opened at the center in the width direction so as not to interfere with a jig for fastening the bolt B. Further, the front protective wall 45A has a circular shape in which the bolt insertion hole 43A is enlarged when viewed from the front, and covers the outer periphery of the rear end portion of the boss portion 31 (the region where the reinforcing rib 31A is not provided). Yes. Further, a reinforcing portion 47 is provided on the front surface of the restriction main body portion 41 so as to connect the front protective walls 45A on both sides.

  As shown in FIGS. 7 and 9, the wire routing piece 51 protrudes from the center position in the width direction of the restriction main body 41. The electric wire routing piece 51 protrudes obliquely rearward and upward, and protrudes at an angle of 45 degrees with respect to the axis line in the drawing direction (front-rear direction) of the electric wire W. The wire routing piece 51 has a flat plate shape, and is provided with hooking grooves 53 that can hook the binding member 55 (see FIG. 5) on both sides in the width direction of the rear end portion (tip portion). The binding member 55 is a tie band or the like tied in an annular shape, and fixes the electric wire W to the electric wire routing piece 51. Further, a rear reinforcing portion 57 is provided on the rear surface of the regulating main body portion 41 so as to continue from the electric wire routing piece 51.

Next, an example of an assembly procedure of the retainer 10 and an attachment procedure to the connector 60 will be described.
First, the wire regulating member 40 is assembled to the retainer body 20 in advance. As shown in FIG. 7, the electric wire arrangement piece 51 is disposed at a position where the front surface of the fixing portion 43 of the electric wire regulating member 40 contacts the boss portion 31 of the retainer body 20 so that the electric wire arrangement piece 51 faces obliquely upward. Then, the bolt hole 33 provided in the boss portion 31 and the bolt insertion hole 43A of the fixing portion 43 are aligned so that the front protective wall 45A provided at the periphery of the fixing portion 43 fits on the outer periphery of the boss portion 31. To do. 4 and 6, the bolt B is inserted into the bolt insertion hole 43A and fastened to the bolt hole 33, and the head of the bolt B comes into contact with the rear surface of the fixing portion 43, so that the electric wire regulating member 40 Is fixed to the retainer body 20.

  And the terminal 70 connected to the terminal of the electric wire W is temporarily hold | maintained to the retainer 10 as shown in FIG.1 and FIG.5. The U-shaped terminal holding portion 25 holds the wire connecting portion of the terminal 70 (see FIG. 5), and the terminal 70 is configured such that the front end surface of the terminal holding portion 25 abuts the rear end surface of the flange portion 75. Is temporarily held by the retainer 10. And the electric wire W is pulled out from the groove part 23 back. The drawn wire W is routed along the wire routing piece 51 and fixed to the wire routing piece 51 by the binding member 55, and the wire regulating member 40 can regulate the routing direction of the wire W. ing. At this time, the binding member 55 is hooked in the hooking groove 53, so that the displacement can be suppressed.

  Next, the retainer 10 on which the terminals 70 are temporarily held is assembled to the connector housing 60. The retainer 10 is assembled to the wire lead-out portion 63 from the rear of the connector housing 61, and the locking portion 29 provided on the peripheral wall portion 27 of the retainer body 20 is locked to the connector housing 61. Thus, in the state where the retainer 10 is assembled to the connector housing 61, the electric wire W is drawn from the electric wire drawing portion 63. Further, the terminal 70 is positioned between the connector housing 61 and the terminal holding portion 25 of the retainer 10, and the terminal 70 is held at a predetermined position.

  In this way, the terminal 70 is held at the specified position of the connector housing 61 by the terminal holding portion 25, and the electric wire W connected to the terminal 70 is fixed to the electric wire routing piece 51 by the binding member 55. If the electric wire W is pulled in a direction away from the electric wire regulating member 40 (electric wire routing piece 51), the tensile force received by the electric wire W is transmitted to the electric wire regulating member 40 through the binding member 55. At this time, the wire regulating member 40 is fixed to the retainer main body 20 at two locations by bolts B. That is, since the wire regulating member 40 is firmly fixed to the retainer main body 20, the wire regulating member 40 can resist the tensile force, and the deformation of the electric wire W can be suppressed against the tensile force.

  Further, when the electric wire W is drawn downward, as shown in FIG. 10, the front surface of the fixing portion 43 of the electric wire regulating member 40 is the boss portion of the retainer main body 20 so that the electric wire routing piece 51 faces obliquely downward. It arrange | positions in the position contact | abutted to 31. Then, similarly to the case where the electric wire W is drawn upward, the electric wire regulating member 40 is fixed to the retainer main body 20 by inserting the bolt B through the bolt insertion hole 43 </ b> A and fastening it to the bolt hole 33.

  Thus, even if the electric wire regulating member 40 is rotated so that the protruding direction of the electric wire routing piece 51 changes, the fixing portion 43 can come into contact with the boss portion 31. That is, even if the direction of the wire regulating member 40 is changed so that the protruding direction of the wire routing piece 51 is changed, it can be attached to the retainer body 20. Therefore, the single wire regulating member 40 can correspond to the drawing direction of the plurality of wires W (in the present embodiment, the vertical direction).

  As described above, in this embodiment, the retainer body 20 provided with the terminal holding portion 25 that holds the terminal 70 and the wire regulating member 40 having different specifications depending on the wiring direction of the wires W are separate members. . Therefore, the retainer body 20 provided with the terminal holding portion 25 that is generally required to have high accuracy can be made common regardless of the wiring direction of the electric wires W. Therefore, a dedicated design of the retainer for each wiring direction is possible. It becomes unnecessary and the design cost can be reduced. In addition, since the retainer body 20 is made common, a collective number of manufacturing can be expected, so that the manufacturing cost can be reduced.

<Other embodiments>
The technology disclosed in this specification is not limited to the embodiment described with reference to the above description and drawings, and for example, the following embodiments are also included in the technical scope.
(1) In the above embodiment, the retainer main body 20 and the wire regulating member 40 are fixed by the bolt B, but may be fixed by other methods such as a locking claw. Moreover, in the said embodiment, although fixed in two places, you may fix in one place or three places or more.

  (2) In the above embodiment, the electric wire arrangement piece 51 can be directed in the vertical direction so that the electric wire arrangement piece 51 can be arranged in a plurality of directions by one electric wire restriction member 40, but another electric wire restriction member is provided for each direction. It may be provided.

  (3) Although the electric wire W is fixed to the electric wire routing piece 51 by the binding member 55 in the above embodiment, the electric wire W may not be fixed.

  (4) In the above embodiment, the terminal 70 is temporarily held by the retainer 10 and then assembled to the connector housing 61. However, the terminal 70 is first accommodated in the connector housing 61, and the retainer 10 is assembled to the wire lead-out portion 63. May be. Further, the wire regulating member 40 may be attached to the retainer body 20 after the retainer body 20 is assembled to the connector housing 61.

DESCRIPTION OF SYMBOLS 10 ... Retainer 20 ... Retainer main body 21 ... Board | substrate part 23 ... Groove part 25 ... Terminal holding part 31 ... Boss part 31A ... Reinforcement rib 33 ... Bolt hole 40 ... Electric wire control member 41 ... Restriction main body part 43 ... Fixing part 43A ... Bolt insertion hole 45 ... Protective wall 45A ... Front protective wall 45B ... Rear protective wall 51 ... Wire routing piece 53 ... Hook groove 55 ... Bundling member 60 ... Connector 61 ... Connector housing 63 ... Wire lead-out portion 70 ... Terminal W ... Wire B ... bolt

Claims (3)

A retainer attached to a lead portion of the wire of a connector housing in which a terminal to which the wire is connected is accommodated,
A retainer body provided with a terminal holding portion for holding the terminal in a predetermined position of the connector housing;
A retainer comprising a wire regulating member that is a separate member from the retainer main body and is capable of being fixed to the retainer main body and capable of regulating a pulling-out direction of the electric wire from the connector housing.   The wire control member includes a fixing portion for fixing to the retainer main body by screwing, and a wire routing piece that protrudes in a wiring direction of the wire and can fix the wire by a binding member. The described retainer. A pair of the fixing portions are provided on the electric wire regulating member,
The retainer according to claim 2, wherein the retainer body can be attached to the retainer main body by changing the direction of the electric wire regulating member so that the protruding direction of the electric wire routing piece is changed.

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