JP2006086091A - Connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress vibration transmission of an electric wire to terminal fittings. <P>SOLUTION: A plurality of electric wires 11 led-out from the rear face of a connector housing 10 are retained by a retaining tool 20 in a desired drawing-out direction. The retaining tool 20 is composed of the base part 21 mountable on the rear face part of the connector housing 10, and an electric wire retaining parts 25 swinging displacement capably installed in series against this base part 21. When the electric wire retaining parts 25 to retain an electric wire 11 and an electric wire 11 are vibrated, there is no apprehension of transmission of the vibration to the base part 21 and the connector housing 10 because the vibration is absorbed by the electric wire retaining parts 25 swinging and displacing against the base part 21. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a connector.

As a connector, there is known a connector in which an electric wire is led out from the back surface of the connector housing, and a holder for correcting the lead-out direction of the electric wire is attached to the back surface portion of the connector housing (for example, Patent Document 1).
JP 2002-352901 A

In this type of connector that is mounted on a vehicle, when the vehicle is vibrated, the electric wire vibrates, and the vibration of the electric wire is transmitted to the connector housing via the holder. When the connector housing vibrates in this way, the terminal fittings housed in the connector housing also vibrate, the contact pressure between the terminal fittings in contact with each other becomes unstable, and the electrical resistance between the two terminal fittings is reduced. There is a concern that it will increase.
This invention is completed based on the above situations, Comprising: It aims at suppressing transmission of the vibration of the electric wire with respect to a terminal metal fitting.

As means for achieving the above object, the invention of claim 1 is a connector comprising a holder for holding a plurality of electric wires led out from the back surface of the connector housing in a desired pulling direction,
The holder is characterized in that it comprises a base portion that can be attached to the back surface portion of the connector housing, and an electric wire holding portion that is connected to the base portion so as to be swingable and displaceable.

  According to a second aspect of the present invention, in the first aspect of the present invention, a rail portion is provided on the back surface portion of the connector housing, and the base portion is a fitting that can be slidably fitted to the rail portion. It is characterized in that the joint is provided.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the rail portion is provided so as to be symmetrical in the width direction of the connector housing, and the base portion is provided with respect to the rail portion. The connector housing is characterized in that it can be fitted from both sides in the width direction.

<Invention of Claim 1>
When the electric wire and the electric wire holding portion that holds the electric wire vibrate, the vibration is absorbed by the oscillating displacement of the electric wire holding portion with respect to the base portion, and thus there is no possibility of transmitting to the base portion and the connector housing.

<Invention of Claim 2>
The assembly of the holder to the connector housing is good in workability since it is only necessary to fit the fitting portion into the rail portion.

<Invention of Claim 3>
According to the present invention, since the holder can be fitted from both sides in the width direction of the connector housing, the electric wire can be led out in two directions by one type of holder.

<Embodiment 1>
A first embodiment of the present invention will be described below with reference to FIGS. The connector housing 10 of the present embodiment and a plurality of electric wires 11 led out from the back surface of the connector housing 10 are held by a holder 20 in a desired pulling direction.

  The connector housing 10 is made of a synthetic resin and has a block shape as a whole. A plurality of cavities (not shown) are formed in the connector housing 10, and terminal fittings (not shown) are inserted into the cavities from above. An electric wire 11 is connected to the upper end portion of each terminal fitting, and each electric wire 11 extends upward from the upper end surface (rear surface) of the connector housing 10 (in a direction substantially perpendicular to the rear surface of the connector housing 10, that is, the electric wire outlet surface 12). Has been derived. The plurality of derived electric wires 11 are bundled together by a holder 20 to be described later and pulled out to the side (direction substantially parallel to the electric wire outlet surface 12) to constitute the wire harness 11W.

  A pair of guide ribs 13 that extend linearly in the left-right direction (the direction parallel to the wire lead-out surface 12) are formed on the front and rear outer surfaces of the back surface of the connector housing 10 in a symmetrical manner. The guide rib 13 is continuously formed over the entire region in the width direction (left-right direction) of the connector housing 10. A pair of left and right rail portions that protrude downward (on the side opposite to the wire lead-out surface 12) and have a rib shape parallel to the guide rib 13 in the region excluding the center in the width direction and the left and right ends of each guide rib 13 14 is formed symmetrically. In addition, on both front and rear outer surfaces of the rear surface portion of the connector housing 10, there are elongated stepped receiving portions 15 that are positioned below the guide ribs 13 and the rail portions 14 and are parallel to the guide ribs 13 and the rail portions 14. It is formed continuously over the entire 10 width direction. Between the receiving part 15 and the guide rib 13, the fitting space 16 in which the arm part 22 of the holder 20 is accommodated is formed. Further, a support portion 17 that protrudes outward is formed on the left and right outer surfaces of the back surface portion of the connector housing 10, and a pair of front and rear locking projections 18 protrude upward on the upper surface of each support portion 17. Is formed.

  Next, the holder 20 will be described. The holder 20 is made of synthetic resin and includes a base portion 21 and an electric wire holding portion 25. The base portion 21 includes a pair of front and rear arm portions 22 that form a straight line that is long in the left-right direction, and a connecting portion 23 that forms an elongated straight line shape in the front-rear direction that connects the tips of the arm portions 22 to each other. It has a “U” shape. The transverse cross-sectional shape perpendicular to the length direction of the arm portion 22 has a “U” shape in which the upper surface side is recessed, and this recessed portion is a fitting groove 24 elongated in the left-right direction (which is a constituent element of the present invention). Fitting part).

  The electric wire holding portion 25 has a configuration in which a plate surface is oriented parallel to both front and rear outer surfaces of the connector housing 10 and a pair of front and rear side plate portions 26 having a width dimension substantially the same as that of the arm portion 22 and an axis line in the left-right direction. In addition, a substantially circular arc-shaped portion 27 having a curved surface that is concave on the upper and lower sides is connected to the tip edges of both side plate portions 26 that are perpendicular to the side plate portions 26. In addition, the connecting wall 28 is connected to the base end edge of the arc-shaped portion 27. The side plate portion 26 is positioned above the arm portion 22 through the slit 29, and the base end portion (the left end portion in FIG. 7) of the side plate portion 26 and the base end portion of the arm portion 22 have a width dimension of the arm portion 22. And it is connected via the support part 30 smaller than the side plate part 26. The outer surface of the support portion 30 is continuous with the outer surface of the arm portion 22 and the outer surface of the side plate portion 26, and the base edge of the support portion 30 is the base end edge of the arm portion 22 and the side plate portion 26. It is flush with the base edge. Further, the arc-shaped portion 27 of the electric wire holding portion 25 protrudes further forward than the tip of the base portion 21.

  The holder 20 has a configuration in which the base portion 21 and the electric wire holding portion 25 are connected to each other at the base end portions, in other words, the electric wire holding portion 25 is cantilevered from the base end portion of the base portion 21 toward the distal end side. It is a form that extends to. Thus, the electric wire holding part 25 cantilevered with respect to the base part 21 can be relatively displaced in the vertical direction so as to be inclined with respect to the arm part 22 of the base part 21 while mainly elastically deforming the support part 30. It is like that. Further, the base portion 21 can be elastically deformed in the vertical direction so that the arm portion 22 is inclined relative to the electric wire holding portion 25 with the base end portion as a fulcrum.

  The connecting portion 23 of the base portion 21 is formed with a protruding portion 31 that protrudes from the center position in the length direction (front-rear direction) to the front side (the side from which the arc-shaped portion 27 protrudes). A jig-addressed portion 32 is formed in a form in which the outer surface and the lower surface on the distal end side of the portion 31 are cut out. Further, the arc-shaped portion 27 is formed with a pair of front and rear circular through holes 33 penetrating from the inner peripheral surface (upper surface) to the outer peripheral surface (lower surface), and on the inner peripheral surface of the arc-shaped portion 27, Comb-shaped regulating ribs 34 are formed so as to project from each other at two positions sandwiching the through-hole 33 from side to side.

Next, the operation of this embodiment will be described.
After inserting the terminal fitting into the connector housing 10, the holder 20 is assembled to the connector housing 10. At the time of assembly, the proximal end portion of the arm portion 22 of the base portion 21 (from the right side toward the connector housing 10) with the orientation of the holder 20 positioned on the right side of the arc-shaped portion 27 of the electric wire holding portion 25. The left end portion) is fitted into the fitting space 16 between the guide rib 13 and the receiving portion 15 (see FIG. 2). Then, when the rail portion 14 and the fitting groove 24 are fitted, the holder 20 is guided to slide (slide) along the rail portion 14 while maintaining a certain posture with respect to the connector housing 10. Is done.

  When the assembly of the holder 20 is advanced as it is, the connecting portion 23 of the base portion 21 abuts on the locking projection 18 of the connector housing 10 and rides on the locking projection 18 along the way, and accordingly, the arm portion. 22 is elastically curved and deformed (see FIG. 3). When the holder 20 reaches the proper assembly position, as shown in FIG. 4, the arm portion 22 is elastically restored, and the connecting portion 23 hits the right outer surface of the connector housing 10, and beyond that of the holder 20. And the displacement of the holder 20 in the disengagement direction (return direction) is restricted by the locking projection 18 engaging with the connecting portion 23 of the holder 20. Thus, the assembly of the holder 20 is completed.

  In addition, according to the connector housing 10 and the holder 20 of this embodiment, the holder 20 from not only the right side of the connector housing 10 but also the left side can be assembled. In this case, the holder 20 is assembled so that the orientation of the holder 20 is reversed from the above.

  In this state, the entire base portion 21 of the holder 20 and the side plate portion 26 of the electric wire holder 25 are positioned in the region inside the connector housing 10 in the width direction, and only the arc-shaped portion 27 of the holder 20 is from the connector housing 10. Is located in the right region (that is, the region outside the connector housing 10 in the width direction). Further, when viewed in a plan view, the base portion 21 and the wire holding portion 25 are located in a region that is separated from the wire lead-out surface 12. That is, both arm portions 22 of the base portion 21, both side plate portions 26 of the connecting portion of the electric wire 11 and the support portion 30 are at positions deviated forward and backward from the electric wire outlet surface 12, and the connecting portion 23 of the base portion 21 and the electric wire 11 are connected. The arcuate part 27 and the connecting wall 28 of the part are at a position deviated to the right from the wire lead-out surface 12. In addition, since the entire base portion 21 of the holder 20 and the side plate portion 26 and the connecting wall 28 of the electric wire holder 25 have a substantially “U” shape in plan, when the holder 20 is assembled to the connector housing 10, There is no possibility that the holder 20 interferes with the electric wire 11.

  After the holder 20 is assembled, the plurality of wires 11 led out from the wire lead-out surface 12 are bundled together by the band 35. At this time, the bundle of the wires 11 is bundled on the upper surface (inner peripheral surface) of the arc-shaped portion 27. While being placed, the band 35 is passed through the through-hole 33 of the arc-shaped portion 27 and bound by the lower surface of the arc-shaped portion 27. Moreover, the area | region bound by the band 35 among the bundles of the electric wires 11 is in a state of being drawn into the groove between the pair of left and right regulating ribs 34 while being locally curved. As a result, the bundle of the wires 11 led upward from the wire lead-out surface 12 of the connector housing 10 is bent (changed in direction) by the holder 20 so as to be substantially parallel to the wire lead-out surface 12. It is pulled out to the right and constitutes the wire harness 11W.

  Now, in the state where the electric wire 11 is held by the holder 20 in this way, when vibration acts on the wire harness 11W (the electric wire 11), the electric wire holding portion 25 of the holder 20 is elastic with the support portion 30 as a fulcrum. However, the base 21 of the holder 20 fitted in the connector housing 10 hardly vibrates. That is, since the vibration of the electric wire 11 is absorbed or suppressed by the holder 20, there is no possibility that the vibration of the electric wire 11 is transmitted to the connector housing 10. Therefore, there is no possibility that wear due to fine sliding occurs at the contact portion between the terminal fitting housed in the connector housing 10 and the counterpart terminal (not shown).

  As described above, the holder 20 of the present embodiment includes the base portion 21 that can be attached to the back surface portion of the connector housing 10 and the electric wire holding portion 25 that is connected to the base portion 21 so as to be swingable and displaceable. Therefore, when the electric wire 11 and the electric wire holding part 25 holding the electric wire 11 vibrate, the vibration is absorbed by the electric wire holding part 25 being oscillated and displaced with respect to the base 21. There is no risk of transmission to the base 21 and the connector housing 10.

  Further, the rail housing 14 is provided on the back surface of the connector housing 10, and the base 21 is provided with a fitting groove 24 that can be slidably fitted to the rail 14, so that the connector 21 has a structure. Assembling of the holder 20 to the housing 10 only requires fitting the fitting groove 24 into the rail portion 14, and the workability is good.

  The rail portion 14 is provided so as to be symmetrical in the width direction of the connector housing 10, and the base portion 21 can be fitted into the rail portion 14 from both sides in the width direction of the connector housing 10. The electric wire 11 can be led out in two directions (right and left) by the holder 20 of a kind.

  When the holder 20 is removed from the connector housing 10, a jig (not shown) is inserted into the jig addressing part 32 and the base 21 is lifted upward to disengage the connecting part 23 from the locking protrusion 18. The holder 20 may be slid to the right while maintaining that state.

<Other embodiments>
The present invention is not limited to the embodiment described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention, and further, within the scope not departing from the gist of the invention other than the following. Various modifications can be made.
(1) In the above embodiment, the direction of assembling the base with respect to the rail portion can be performed from both the left and right sides. However, according to the present invention, the direction of assembling the base with respect to the rail portion can be performed only from either the left or right side. It may be.
(2) In the above embodiment, the base portion and the electric wire holding portion are integrated parts, but according to the present invention, the base portion and the electric wire holding portion may be separate parts.
(3) In the above embodiment, the electric wire holding part is connected to the base in a cantilevered support form, but according to the present invention, the electric wire holding part may be connected to the base in a doubly supported form. .
(4) In the above embodiment, the rail portion is parallel to the electric wire outlet surface (rear end surface) of the connector housing. However, according to the present invention, the rail portion is connected to the electric wire outlet surface (rear end surface) of the connector housing. The crossing direction (oblique direction or right angle direction) may be used.
(5) Although the rail portion is linear in the above embodiment, according to the present invention, the rail portion may be curved with a constant curvature.
(6) In the above embodiment, the number of rail portions fitted to the base portion in the state where the holder is assembled is two, but according to the present invention, the number of rail portions may be one or three or more. Good.

The partially cutaway front view showing the state where the electric wire is held by the holder in the first embodiment Front view showing the process of attaching the holder to the connector housing Front view showing the process of attaching the holder to the connector housing Front view showing the state that the holder is assembled to the connector housing AA sectional view of FIG. Partially cutaway side view showing the state where the holder is assembled to the connector housing Front view of holder Top view of holder BB sectional view of FIG. CC sectional view of FIG. Right side view of retainer DD sectional view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Connector housing 11 ... Electric wire 14 ... Rail part 20 ... Holder 21 ... Base 24 ... Fitting groove (fitting part)
25 ... Electric wire holding part

Claims (3)

A connector having a holder for holding a plurality of electric wires led out from the back surface of the connector housing in a desired pulling direction,
The connector includes a base portion that can be attached to a back surface portion of the connector housing, and an electric wire holding portion that is connected to the base portion so as to be swingable and displaceable. The rail part is provided in the back part of the connector housing, and the fitting part which can be slidably fitted with respect to the rail part is provided in the base part. Connector. The rail portion is provided to be symmetric in the width direction of the connector housing,
The connector according to claim 1 or 2, wherein the base portion can be fitted into the rail portion from both sides in the width direction of the connector housing.

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