JP2016219308A - connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector that comprises a connector housing and an electric wire cover comprising a wall part in a substantially cylindrical or substantially elliptic cylindrical shape having a cut formed partially in a circumferential direction and fitted to the connector housing, and that prevents the electric wire cover from falling.SOLUTION: An electric wire cover has an auxiliary locked part, comprising a first auxiliary locked surface perpendicular to a direction in which both side edges separate from each other, formed nearby both the side edges defining a cut of a wall part, and a connector housing comprises a first auxiliary lock surface to be locked to the first auxiliary locked surface from the opposite side from the cut, thereby forming an auxiliary lock part to engage the auxiliary locked part.SELECTED DRAWING: Figure 1

Description

  The technology disclosed by this specification is related with the connector provided with the connector housing and the electric wire cover.

2. Description of the Related Art Conventionally, there has been known a connector having a connector housing having a structure in which a front surface is a mating surface with a mating side and a wire connected to a terminal housed inside is pulled out from the rear surface, and a wire cover attached to the rear surface. ing. The electric wire cover is attached for the purpose of protecting the electric wire drawn out from the rear surface of the connector housing or restricting the lead-out direction of the electric wire.
As a connector provided with such an electric wire cover, for example, a connector described in JP 2013-140664 A (Patent Document 1 below) is known. The electric wire cover disclosed here comprises a main body cover and a lid cover that are divided in two in the electric wire drawing direction, and has a circular or oval cross section provided so as to surround the electric wire drawing portion on the rear surface of the connector housing. The cover mounting portion is attached to the connector housing so as to be sandwiched between the main body cover and the lid cover.

JP 2013-140673 A

  However, with the connector as described above, the work of attaching the electric wire cover to the connector housing becomes complicated, such as temporarily attaching the main body cover to the connector housing and then sandwiching and fixing the cover with the lid cover. It is also necessary to secure a space for rotating the lid cover around the electric wire cover mounting location. Then, as an electric wire cover which improved the workability | operativity to the connector housing, a thing as shown in FIG. 14 can be considered.

The wire cover 106 illustrated in FIG. 14 includes a fitting portion 161 that includes a wall portion 162 that is formed in a substantially cylindrical shape with a bottom that opens forward and reduces the diameter toward the rear, and from the rear surface of the fitting portion 161. And a derivation unit 171 including a derivation wall 172 continuously provided so as to extend in a predetermined direction. Further, a notch 165 is formed over the entire length in the axial direction on the side surface of the wall portion 162 on the lead-out portion 171 side, and communicates with the opening on the front surface of the lead-out portion 171.
From the front edge 163 of the wall portion 162, a total of four pieces to be locked 181 are provided projecting forward in a spaced manner so as to be substantially equidistant. The locked piece 181 is formed in a cantilever shape with the front end edge 163 as a base end, so that it can be bent and deformed in the radial direction, and has a shape curved along the peripheral surface of the front end edge 163. . A substantially rectangular locking hole 182 is formed at a front portion of the locked piece 181, and a front edge 183 of the locking hole 182 protrudes in the outer peripheral direction.

  A connector housing (not shown) to which such a wire cover 106 is attached has an outer peripheral surface having a substantially circular shape or a substantially elliptical shape in cross section, and a wire lead portion from which a wire connected to a terminal is drawn to the rear surface side, Four locking portions protruding from the outer peripheral surface of the wire lead-out portion are provided on the rear surface. A locking claw that is inserted and locked in the locking hole 182 of the locked piece 181 of the wire cover 106 is projected from the locking portion.

The electric wire cover 106 is attached to the connector housing as follows. That is, it presses from back, fitting the inner periphery of the wall part 162 of the electric wire cover 106 to the outer peripheral surface side of the electric wire extraction part of a connector housing. Thereby, the front edge 183 of the locked piece 181 rides on the locking claw protruding from the outer peripheral surface side of the wire lead-out portion, and the locked piece 181 is pushed in while being bent and deformed in the outer peripheral direction. When the leading edge 183 climbs over the locking claw and the bending deformation of the locked piece 181 is recovered, the locking claw formed on the outer periphery of the wire lead-out portion is fitted into the locking hole 182, and the front surface of the locking claw Is locked to the rear end surface 183B of the front edge 183, so that the rearward movement of the wire cover 106 is restricted and the fitting is locked.
Next, the electric wire drawn out from the rear surface of the connector housing is pushed into the fitting portion 161 from the notch 165 and fixed with a tie band (not shown) so as to be along the front surface of the lead-out wall 172 of the lead-out portion 171. . Thereby, it can derive | lead-out to the derivation | leading-out direction different from a drawing-out direction, protecting an electric wire.

However, in the connector including the connector housing and the electric wire cover 106 as described above, the drawn electric wire is pulled or the like, and the engagement between the locking claw and the locking hole 182 cannot be supported alone. When the stress acts on the electric wire cover 106, the wall portion 162, and thus the locked piece 181 is deformed so as to expand in diameter, and when the amount of deformation exceeds the engagement between the locking hole 182 and the locking claw, There is a possibility that the cover 106 may come off from the connector housing.
In view of the above circumstances, the present specification aims to disclose a connector including a connector housing and an electric wire cover attached to the rear surface of the connector housing, wherein the electric wire cover is prevented from coming off. .

The connector disclosed in this specification includes an outer peripheral surface having a substantially circular shape or a substantially elliptical shape in cross-section, and a wire lead-out portion from which a wire connected to a terminal is pulled out rearward, and a protrusion projecting from the outer peripheral surface. A connector housing having a stop portion, a wall portion having a substantially cylindrical shape or a substantially elliptic cylinder shape with a notch formed in a part in the circumferential direction, and a lock portion formed on the wall portion. A wire cover having a fitting portion fitted to the outer peripheral side of the wire lead-out portion.
Further, the cover has an auxiliary cover provided with a first auxiliary locked surface perpendicular to a direction in which the both side edges are separated from each other in the vicinity of both side edges defining the notch in the wall portion. A locking portion is formed, and the connector housing includes a first auxiliary locking surface for locking to the first auxiliary locked surface from the opposite side of the notch, and the auxiliary locked portion The auxiliary latching part which engages with is formed.

  According to such a configuration, a force that cannot be supported only by the engagement of the locking portion and the locked portion is exerted on the electric wire cover, and a deformation stress is generated to increase the diameter of the wall portion of the electric wire cover. Even in this case, such deformation stress can be received by the first auxiliary locking surface that is locked to the first auxiliary locked surface. Therefore, the deformation in the direction in which the side edges of the notches are separated from each other is restricted, the deformation of the fitting portion is suppressed, and the wire cover can be prevented from being detached from the connector housing.

  The connector disclosed by this specification is provided so that the both side edges may be parallel to each other, and the first auxiliary locked locked surface connects the both side edges of the notch. It is good also as a structure which makes it perpendicular | vertical with respect to a plane, and is provided in parallel with the axis line of the said wall part.

  According to such a configuration, in the electric wire cover having the wall portion in which the notches are defined by the both side edges that are parallel to each other, the first auxiliary locked surface faces the direction in which the both side edges are separated from each other. Arranged. Therefore, the deformation stress as described above can be reliably received, the deformation in the direction in which the side edges of the notch are separated from each other is restricted, the deformation of the fitting portion is suppressed, and the wire cover is connected to the connector housing. Can be prevented from coming off.

  In the connector disclosed in this specification, the auxiliary locked portion includes a second auxiliary locked surface perpendicular to the axis of the wall portion, and the auxiliary locking portion includes the second auxiliary locked surface. It is good also as a structure further provided with the 2nd auxiliary | assistant locking surface locked to a locking surface.

  According to such a configuration, even if a force to remove the connector cover from the connector housing is applied to the wire cover, and a tensile stress in the rearward direction along the axis of the wall portion is generated, such a tensile stress is generated. Can be received at the second auxiliary locked surface or the like that faces directly. In this way, the tensile stress received by the engagement of the locking portion etc. is dispersed and received by the auxiliary locking portion etc., thereby preventing the locking portion from being damaged and restricting the expansion deformation of the fitting portion. And it can prevent that an electric wire cover remove | deviates from a connector housing.

  In the connector disclosed in this specification, one of the auxiliary locking portion and the auxiliary locked portion is a locking claw, and the other is a locking hole in which the locking claw can be inserted and locked. It is good also as a structure.

  According to such a configuration, for example, the side surface and the front surface of the locking claw are the first auxiliary locking surface and the second auxiliary locking surface, and the side edge surface and the front edge surface of the locking hole are the first auxiliary locking surface. The locked surface and the second auxiliary locked surface can be used. Therefore, it is not necessary to separately provide the auxiliary locking portion having the first auxiliary locking surface and the auxiliary locking portion having the second auxiliary locking surface, and similarly, the first auxiliary locked surface is provided. There is no need to separately provide the auxiliary locked portion provided and the auxiliary locked portion provided with the second auxiliary locking surface. Therefore, it is possible to reliably prevent the wire cover from being detached from the connector housing with a simple configuration.

  In the connector disclosed in this specification, the electric wire cover is continuously provided on the rear surface side of the fitting portion so as to extend in a lead-out direction different from a drawing direction in which the electric wire is drawn, and the electric wire is bent. It is good also as a structure which has the derivation | leading-out part derived | led-out led, and is provided so that the said notch may continue over the full length of the axial direction of the said fitting part, and the extension direction of the said derivation | leading-out part.

  According to such a configuration, the electric wire cover can be retrofitted by a simple operation of pressing the electric wire through the notch while pressing and locking the electric wire cover from behind the connector housing.

  According to the technology disclosed in the present specification, in the connector including the connector housing and the electric wire cover attached to the rear surface, it is possible to prevent the electric wire cover from coming off.

The perspective view of the electric wire cover concerning an embodiment Right side view of the wire cover Rear view of the wire cover AA line sectional view of the wire cover in FIG. The right view of the retainer which is a part of connector housing concerning an embodiment Rear view of retainer BB sectional view of the retainer in FIG. Right side view with the wire cover attached to the retainer Rear view with the wire cover attached to the retainer CC sectional view taken on line CC in FIG. 8 with the wire cover attached to the retainer. DD cross-sectional view in FIG. 9 with the wire cover attached to the retainer Top view of the wire cover attached to the retainer EE sectional view in FIG. 12 of the state which attached the electric wire cover to the retainer The perspective view of the electric wire cover of the connector relevant to embodiment

<Embodiment>
An embodiment will be described with reference to FIGS. The connector 1 according to the present embodiment is a vehicle connector mounted on an electric vehicle or a hybrid vehicle, and a charging connector (not shown) is connected from the front side when charging a battery mounted on the vehicle. Yes. The connector 1 is a connector for high voltage charging, and a terminal for rapid charging at high voltage is accommodated therein.
The connector 1 includes a connector housing and an electric wire cover 6 attached to the rear surface of the connector housing. In the following description, the upper side in FIG. 1 is up, the left front side is front, and the right front side is right (direction lines are shown in each drawing).

First, the wire cover 6 of the connector 1 will be described with reference to FIGS. 1 to 4.
As shown schematically in FIG. 1, the electric wire cover 6 accommodates an electric wire drawn rearward from the connector housing and bends it to the right to be led out.
The wire cover 6 includes a fitting portion 61 attached to the rear surface of the connector housing and a lead-out portion 71 extending toward the right. The fitting portion 61 has an axial line extending in the front-rear direction, and includes a wall portion 62 that is formed in a substantially cylindrical shape with a bottom that opens forward and is reduced in diameter toward the rear. The electric wire is drawn out along the axis L2. On the other hand, the lead-out portion 71 includes a lead-out wall 72 that is continuously provided so as to extend rightward from the rear surface of the wall portion 62 and has a substantially U-shaped cross section that opens forward. As shown in FIG. 1, the upper and lower ends of the lead-out wall 72 bent forward are extended along the wall portion 62, thereby forming side edges 66 positioned above and below, and the wall portions 62 are formed by the side edges 66. A notch 65 is defined on the right side of the. As shown in FIG. 2, the side edges 66 are arranged along the axis L2 of the wall 62, and the notch 65 is defined along the axis L2. In addition, in each drawing, L2 represents the axis of the wall part 62 and the surrounding wall 32 mentioned later by which this is fitted. A plane connecting both side edges 66 is P1.

From the front end edge 63 of the wall part 62 of the fitting part 61, four pieces to be locked 81 having a shape that is entirely curved along the peripheral surface of the front end edge 63 protrudes forward. . As shown in FIG. 3 and the like, the locked pieces 81 are spaced apart along the front end edge 63 of the wall portion 62 so as to be equally spaced, and a total of four locked pieces 81 are provided. The above-mentioned notch 65 is arranged between the two pieces on the right side of these. As shown in FIGS. 1 and 4, the locked piece 81 is formed in a cantilever shape with the front end edge 63 as a base end, so that it can be bent and deformed in the radial direction.
A substantially rectangular locking hole 82 (corresponding to a locked portion) capable of inserting and locking a locking claw 42 to be described later is formed in the front portion of the locked piece 81. The front edge 83 protrudes in the outer peripheral direction. As shown in FIG. 11 and the like, the rear end surface 83B of the front edge 83 is formed so as to form a surface perpendicular to the axis L2, and this rear end surface 83B is a locked surface, and FIG. As shown in FIG. 4, the engaging claw 42 is engaged with an engaging surface composed of a front surface 42B of an engaging claw 42 described later.

In the electric wire cover 6, as shown in FIGS. 1 and 3, between the two pieces of the four pieces to be locked 81 arranged at the right side position, in front of both side edges 66 of the notch 65 in the wall portion 62. In addition, two auxiliary locked pieces 91 having a flat plate shape as a whole and having a plate surface parallel to the plane P1 are formed (in this specification, the straight line on the plane is It is considered to be parallel to this plane, and the plane is considered to be parallel to the plane). As shown in FIGS. 1 and 2, the auxiliary locked piece 91 is formed so as to continue from both side edges 66 of the notch 65, protrudes toward the center line direction of the notch 65, and has a front end edge It protrudes from 63 to the front and is formed in a cantilever shape having a substantially rectangular shape. As a result, the auxiliary locked piece 91 can be bent and deformed in the radial direction at the front end portion, and at the same time, can be allowed to be slightly rotated and deformed with the side edge 66 as a base axis. It becomes easy to push in the electric wire for doing.
A substantially rectangular auxiliary locking hole 92 (corresponding to an auxiliary locked portion) into which an auxiliary locking claw 52 (to be described later) can be inserted and locked is formed in the front portion of the auxiliary locked piece 91. An edge 93 protrudes in the outer peripheral direction. As shown in FIG. 4 and the like, the rear end surface 93B of the front edge 93 is formed to be a surface perpendicular to the axis L2, and the rear end surface 93B of the front edge 93 is the second auxiliary locked surface. Thus, as shown in FIG. 10 and the like, it is locked to a second auxiliary locking surface comprising a front surface 52B of an auxiliary locking claw 52 described later.
Further, as shown in FIG. 2 and the like, the edge surfaces 92A and 92C extending in the front-rear direction defining the auxiliary locking hole 92 and arranged vertically are formed so as to be parallel to the axis L2. Further, as shown in FIG. 13 and the like, the edge surfaces 92A and 92C are formed so as to be perpendicular to the plane P1, and of these, the edge on the side close to the center line of the notch 65 is defined. The inner edge surface 92 </ b> A is a first auxiliary locked surface and is locked to a first auxiliary locking surface including an inner surface 52 </ b> A of an auxiliary locking claw 52 described later.

The wire cover 6 as described above is attached to the rear surface of the connector housing.
The connector housing of the connector 1 includes a housing main body (not shown) and a retainer 2 fitted on the rear surface of the housing main body, and the wire cover 6 is attached to the rear surface of the retainer 2. Next, the retainer 2 will be described with reference to FIGS.

  The retainer 2 is made of synthetic resin, and has an outer shape in which a cylindrical peripheral wall 32 of the wire lead-out portion 31 protrudes from the rear surface of the cylindrical outer cylinder portion 21 as shown in FIG. As shown in FIG. 7, a retaining plate 22 is provided inside the outer cylinder portion 21. The retaining plate 22 functions as a rearward retaining member such as a terminal housed in the housing body. As shown in part of FIG. 6, the retaining plate 22 is slightly above the center of the retaining plate 22. A plurality of wire outlets 34 are formed at positions to draw out the wires connected to the plurality of terminals backward. In FIG. 6, 34A represents an electric wire outlet for drawing out an electric wire connected to the signal terminal, and 34B represents an electric wire outlet for drawing out an electric wire having a relatively large diameter connected to the charging terminal. . As shown in FIG. 5, four retainer mounting pieces 23 are formed to extend forward from the front edge of the outer cylinder portion 21, and the retainer mounting pieces 23 are provided on the housing body. The retainer 2 is fixed to the rear surface of the housing main body by engaging with an attached portion (not shown).

  As shown in FIG. 6 and the like, a cylindrical peripheral wall 32 that surrounds the plurality of wire outlets 34 is provided at a position slightly above the center of the rear surface of the retainer 2, thereby forming a wire lead-out portion 31. Has been. The wall portion 62 of the wire cover 6 is fitted to the outer peripheral surface 32R side of the wire lead portion 31. The peripheral wall 32 in the present embodiment has a substantially perfect circle in cross section.

  As shown in FIG. 5, four locking pieces 41 project from the front side of the outer peripheral surface 32 </ b> R of the peripheral wall 32 so as to extend in the front-rear direction. As shown in FIG. 6, the four pieces of locking pieces 41 are provided at positions corresponding to the above-mentioned four pieces of locked pieces 81, and are spaced apart at equal intervals on the outer peripheral surface 32R. ing. As shown in FIG. 5, each locking piece 41 is formed so that the side surface has a generally backward arrow-like shape, and the arrowhead portion at the rear end is inserted into the locking hole 82 described above. A locking claw 42 (corresponding to a locking portion) that can be stopped is formed. As shown in FIG. 11 and the like, the front surface 42B of the locking claw 42 is formed so as to form a surface perpendicular to the axis L2 of the peripheral wall 32, and the rear end surface 83B (locked) of the front edge 83 described above. To the surface).

On the outer peripheral surface 32R of the peripheral wall 32, two pieces of the four pieces of locking pieces 41 are disposed at positions corresponding to the two pieces of auxiliary locked pieces 91 described above, between two pieces arranged on the right side. One auxiliary locking piece 51 is provided to project rightward. As shown in FIG. 7 and the like, each auxiliary locking piece 51 is formed so that the side surface is shaped like a single arrow in a rearward direction, and the arrowhead portion can be inserted and locked in an auxiliary locking hole 92 described later. An auxiliary locking claw 52 (corresponding to an auxiliary locking portion) is formed. As shown in FIG. 7 and the like, the front surface 52B of the auxiliary locking claw 52 is formed so as to form a surface perpendicular to the axis L2, and this surface is used as a second auxiliary locking surface. As shown in the above, the second auxiliary locked surface formed by the rear end surface 93B of the front edge 93 is locked.
Moreover, as shown in FIG. 5 etc., the surfaces 52A and 52B extended in the front-back direction of the auxiliary | assistant latching claw 52 and distribute | arranged up and down are provided in parallel with the axis line L2. Further, as shown in FIG. 13 and the like, the surfaces 52A and 52B are formed so as to be perpendicular to the plane P1, and of these, the two auxiliary locking pieces 51 are located on the sides facing each other. The inner surface 52A serves as a first auxiliary locking surface and is locked to the first auxiliary locking surface formed by the inner edge surface 92A of the auxiliary locking hole 92 described above.

  The present embodiment has the above-described configuration. Next, a method for attaching the wire cover 6 to the rear surface of the retainer 2 will be described. 8 to 13 show a state in which the wire cover 6 is attached to the rear surface of the retainer 2.

  First, the electric wire connected to the terminal in the housing body is inserted into the electric wire outlet 34 of the retaining plate 22 from the front surface side and pulled out to the rear surface side of the retainer 2. In this state, the retainer 2 is mounted on the rear surface of the housing body by the retainer mounting piece 23. Next, the wire cover 6 is pressed against the rear surface of the retainer 2. As a result, the front edge 83 of the locked piece 81 rides on the locking claw 42 and the front edge 93 of the auxiliary locked piece 91 rides on the auxiliary locking claw 52, and at the same time the fitting part 61 is slightly expanded in diameter. The locked piece 81 and the auxiliary locked piece 91 are bent and deformed in the outer peripheral direction. When the wire cover 6 is further pushed in and the front edge 83 and the front edge 93 get over the locking claw 42 and the auxiliary locking claw 52 respectively, the deformation is recovered, and the locking claw 42 is inserted into the locking hole 82. The auxiliary locking claw 52 is inserted and locked in the auxiliary locking hole 92, and the electric wire cover 6 is fixed to the rear surface of the retainer 2.

  Accordingly, as shown in FIG. 8 and the like, the rear end surface 83B (locked surface) of the front edge 83 of the locked piece 81 provided on the wire cover 6 is fixed to the front surface 42B (locked) of the locking claw 42. Surface). At the same time, the rear end surface 93 </ b> B (second auxiliary locked surface) of the front edge 93 of the auxiliary locked piece 91 is formed on the front locking surface 92 </ b> B (second auxiliary locking surface) of the auxiliary locking claw 52. The inner edge surface 92A (first auxiliary locked surface) is locked to the inner surface 52A of the auxiliary locking claw 52, respectively.

  Next, the electric wire drawn out to the rear surface side of the retainer 2 is pushed into the wall portion 62 from the notch 65 and along the front surface of the lead-out wall 72, and is fixed with a tie band (not shown) as necessary. To do. As a result, it is possible to obtain the connector 1 that leads out to the right while protecting the electric wire drawn backward from the connector housing.

  As described above, as shown in FIGS. 8, 9, 11, 12, and 13, the electric wire cover is formed by engaging the engaging claws 42 and the engaging holes 82 arranged in an arc shape. 6 is locked to the rear surface of the retainer 2. Furthermore, in this embodiment, the auxiliary | assistant latching claw 52 and the auxiliary | assistant latching hole 92 were provided, and these shall be simultaneously engaged as shown in FIG.8, FIG.10, FIG.12 and FIG. As a result, as shown in FIG. 13 and the like, a plane perpendicular to the plane P1 connecting the side edges 66 is formed, and as shown in FIG. 8 and the like, it is parallel to the axis L2 of the wall portion 62. The inner surface 52A (first auxiliary locking surface) of the auxiliary locking claw 52 is locked to the inner edge surface 92A (first auxiliary locked surface) of the formed auxiliary locking hole 92 from the opposite side of the notch 65. . As shown in FIG. 10 and the like, the front surface of the auxiliary locking claw 52 is formed on the rear end surface 93B (second auxiliary locked surface) of the front edge 93 formed so as to form a surface perpendicular to the axis L2. 52B (second auxiliary locking surface) is locked.

  The first effect based on the engagement between the auxiliary locking claw 52 and the auxiliary locking hole 92 is as follows. When a deformation stress that expands the diameter of the fitting portion 61 is applied to the electric wire cover 6, the two auxiliary locked pieces 91 tend to be displaced in directions away from each other. However, in the present embodiment, the inner surface 52A (first auxiliary engagement surface) of the auxiliary engagement claw 52 is arranged so that the inner edge surface 92A (first auxiliary engagement surface) of the auxiliary engagement hole 92 faces directly in such a direction. The movement of the auxiliary locked piece 91 in the separation direction is restricted by being locked to the stop surface. As a result, the diameter-expansion deformation of the fitting portion 61 is suppressed, and the electric wire cover 6 can be prevented from being detached from the retainer 2.

  The second effect based on the engagement between the auxiliary locking claw 52 and the auxiliary locking hole 92 is as follows. When a force that urges the wire cover 6 rearward is applied, the front edge 93 of the auxiliary locked piece 91 tends to be displaced rearward in the same manner as the front edge 83 of the locked piece 81. However, in the present embodiment, the front engagement surface 52B (second auxiliary locking surface) of the auxiliary locking claw 52 is locked to the rear end surface 93B (second auxiliary locking surface) of the front edge 93, thereby assisting the auxiliary engagement. The rearward movement of the stop piece 91 is restricted. In this way, the tensile claw 42 received only by the engagement of the locking claw 42 and the locking hole 82 is also received by the auxiliary locking claw 52 and the auxiliary locking hole 92, thereby avoiding damage to the locking claw 42 and the like. In addition, it is possible to prevent the wire cover 6 from being detached from the retainer 2 by restricting the diameter expansion deformation of the wall portion 62.

  In this embodiment, as shown in FIG. 8 and the like, the auxiliary locking claw 52 has an inner surface 52A (first auxiliary locking surface) perpendicular to the plane P1 and parallel to the axis L2, and a front surface perpendicular to the axis L2. 52B (second auxiliary locking surface), while the auxiliary locking hole 92 has an inner edge surface 92A (first auxiliary locked surface) and a rear end surface 93B (second auxiliary locked surface) of the front edge 93. The surface). Therefore, it can oppose the force which works in two directions with one structure, and the prevention of detachment from the retainer 2 of the wire cover 6 is ensured with a simple configuration.

Furthermore, since the electric wire cover 6 according to the present embodiment has the notch 65 communicating with the opening on the front surface of the outlet wall 72, the electric wire cover 6 is pushed straight from the rear of the retainer 2 and locked, and then the electric wire is removed from the notch 65. Can be retrofitted to the rear surface of the connector housing.
Further, in the present embodiment, the locking piece 41 and the auxiliary locking piece 51 are both formed in a rearward single arrow-like outline, and the front surface 42B of the locking claw 42 provided at the rear end and the auxiliary locking member. The rear end surface 83B of the front edge 83 of the locked piece 81 and the rear end surface 93B of the front edge 93 of the auxiliary locked piece 91 are locked to the front surface 52B of the pawl 52. Therefore, all the above-mentioned engagement can be realized by one action of pushing the electric wire cover 6 from the rear side of the retainer 2, and the workability is extremely excellent.

  Note that the connector according to the present embodiment is a vehicle connector, and there is often no need for a space at the mounting location, and it is often necessary to bend the electric wire. The vehicle connector according to the present embodiment is for quick charging, and the electric wire drawn from the rear surface has a relatively large diameter and cannot be bent easily. For this reason, the electric wire outlet 34 and the lead-out wall 72 must have a large interval, and the electric wire cover 6 is easily subjected to forces from various directions. Therefore, it can be said that this technique is particularly useful for such a connector.

  In the present embodiment, the structure for attaching the wire cover 6 is provided in the retainer 2 instead of the housing body. For this reason, it can respond easily with respect to the electric wire cover 6 of various structures only by changing the design of the retainer 2.

<Other embodiments>
The technology disclosed in the present specification is not limited to the embodiments described with reference to the above description and drawings, and includes, for example, the following various aspects.

(1) The electric wire cover 6 may be one that bends the electric wire at an arbitrary angle, or may be one that leads out without bending the electric wire (the electric wire drawing direction coincides with the electric wire outlet direction). Moreover, the derivation | leading-out direction may be changed in two steps behind the fitting part. For example, the electric wire drawn out from the connector housing may be bent and led out toward the right after being bent downward at the rear of the fitting portion. The lead-out direction of the electric wire can be arbitrarily set regardless of the direction in which the notch is formed in the electric wire cover.

(2) The locking piece 41 is not limited to the one in which a plurality of pieces are provided separately. For example, the present technology can be applied to a configuration in which one locking piece having a substantially C shape is provided.

(3) The auxiliary locking part may be formed integrally with the locking part. For example, a protrusion that includes a surface (first auxiliary locking surface) perpendicular to the plane P1 and parallel to the axis L2 is provided at the side end of the locking piece provided along the outer peripheral surface of the wire lead portion, It is good also as a structure which makes the to-be-latched part formed in the wall part of a fitting part combine the 1st auxiliary | assistant locked surface latched to a 1st auxiliary | assistant locking surface.

1 ... Connector 2 ... Retainer (part of connector housing)
6 ... Electric wire cover 31 ... Electric wire extraction part 32 ... Peripheral wall 32R ... Outer peripheral surface 42 ... Locking claw (locking part)
42B ... Front (locking surface)
52 ... Auxiliary locking claw (auxiliary locking part)
52A ... inner surface (first auxiliary locking surface)
52B ... Front (second auxiliary locking surface)
61 ... fitting part 62 ... wall part 65 ... notch 66 ... side edge 71 ... derivation part 82 ... locking hole (locked part)
83 ... front edge 83B ... rear end face (locked face)
92 ... Auxiliary locking hole (auxiliary locked part)
92A ... Inner edge surface (first auxiliary locked surface)
93 ... front edge 93B ... rear end face (second auxiliary locked face)
P1 ... plane L2 ... axis

Claims (5)

A wire lead-out portion having an outer peripheral surface having a substantially circular shape or a substantially oval shape in cross-sectional view, and a wire connected to the terminal drawn out backward;
A connector housing having a locking portion protruding from the outer peripheral surface;
A wall portion having a substantially cylindrical shape or a substantially elliptical cylinder shape with a notch formed in a part in a circumferential direction, and a locked portion that is formed on the wall portion and engages with the locking portion. A wire cover having a fitting portion fitted to the outer peripheral side of the wire lead portion,
In the connector with
The electric wire cover includes an auxiliary engagement member provided with a first auxiliary engagement surface that is perpendicular to a direction in which the both side edges are separated from each other in the vicinity of both side edges that define the notch in the wall portion. A stop portion is formed, and the connector housing includes a first auxiliary locking surface that is locked to the first auxiliary locked surface from the opposite side of the notch, and the auxiliary locked portion and The connector in which the auxiliary latching part to engage is formed. The both side edges are provided so as to be parallel to each other,
The said 1st auxiliary | assistant locked surface is provided so that it may become perpendicular | vertical with respect to the plane which connected the said both edges of the said notch, and it may become parallel to the axis line of the said wall part. Connector.   The auxiliary auxiliary portion locks the second auxiliary locked surface perpendicular to the axis of the wall portion, and the auxiliary auxiliary portion locks the second auxiliary locked surface to the second auxiliary locked surface. The connector according to claim 1, further comprising a locked surface.   4. Either of the auxiliary locking portion and the auxiliary locked portion has a locking claw, and the other has a locking hole into which the locking claw can be inserted and locked. The connector described. The wire cover has a lead-out portion that is connected to the rear surface side of the fitting portion so as to extend in a lead-out direction different from the lead-out direction from which the electric wire is drawn out, and leads out while bending the wire. ,
The connector according to any one of claims 1 to 4, wherein the notch is provided so as to communicate over the entire length in the axial direction of the fitting portion and the extending direction of the lead-out portion.

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