WO2023106045A1

WO2023106045A1 - Shield unit

Info

Publication number: WO2023106045A1
Application number: PCT/JP2022/042330
Authority: WO
Inventors: 直也西村
Original assignee: 株式会社オートネットワーク技術研究所; 住友電装株式会社; 住友電気工業株式会社
Priority date: 2021-12-06
Filing date: 2022-11-15
Publication date: 2023-06-15
Also published as: JP2023083752A

Abstract

The present invention connects a shield member and a ground wire without using solder.　A shield unit (10) comprises: a holding member (20) that holds a ground wire (15) and a cylindrical shield member (11) in a contact state; and a detachment restriction part (36) that restricts detachment of the ground wire (15) from the shield member (11). The ground wire (15) and the shield member (11) are brought into a conduction-enabled contact state by the holding member (20), and the ground wire (15) is prevented from being detached from the shield member (11) by the detachment restriction part (36). According to the present disclosure, the shield member (11) and the ground wire (15) can be held in a connected state without using solder.

Description

shield unit

The present disclosure relates to shield units.

Patent Document 1 discloses a structure in which a braid and a ground wire are connected by soldering as a countermeasure against electromagnetic shielding.

Japanese Patent Application Laid-Open No. 2003-209391

When connecting the braid and the ground wire with solder, the melted solder falls from the mesh of the braid. Therefore, the connection method using solder cannot be used in a wire harness manufacturing line in which electric wires are inserted through the braid. In addition, the method using solder is troublesome and requires equipment.

The shield unit of the present disclosure has been completed based on the above circumstances, and aims to connect the shield member and the ground wire without using solder.

The shield unit of the present disclosure is
a holding member that holds the ground wire and the cylindrical shield member in contact;
and a detachment restricting portion that restricts detachment of the ground wire and the shield member.

According to the present disclosure, it is possible to connect the shield member and the ground wire without using solder.

FIG. 1 is a perspective view of the shield unit of Example 1. FIG. FIG. 2 is a cross-sectional view of the shield unit of Example 1. FIG. FIG. 3 is an exploded perspective view of the shield unit of Example 1. FIG. FIG. 4 is a perspective view of the shield unit of Example 2. FIG. FIG. 5 is a cross-sectional view of the shield unit of Example 2. FIG. FIG. 6 is an exploded perspective view of the shield unit of Example 2. FIG. FIG. 7 is a cross-sectional view of the shield unit of Example 3. FIG. FIG. 8 is a cross-sectional view of the shield unit of Example 4. FIG.

[Description of Embodiments of the Present Disclosure]
First, the embodiments of the present disclosure will be listed and described.
The shield unit of the present disclosure is
(1) A holding member that holds a ground wire and a cylindrical shield member in contact with each other, and a detachment restricting portion that restricts detachment of the ground wire and the shield member. According to the configuration of the present disclosure, the holding member brings the ground wire and the shield member into a conductive contact state, and the detachment restricting portion prevents the ground wire from being detached from the shield member. According to the present disclosure, the shield member and the ground wire can be held in a connected state without using solder.

(2) The holding member includes an inner peripheral member arranged on the inner peripheral surface side of the shield member, and an inner peripheral member arranged on the outer peripheral surface side of the shield member. It is preferable to include an outer peripheral member that clamps the ground wire, and a fixing portion that fixes the inner peripheral member and the outer peripheral member in the clamped state. According to this configuration, the shield member and the ground wire can be reliably brought into contact with each other by being sandwiched between the inner peripheral member and the outer peripheral member.

(3) In (2), it is preferable that the fixing portion is configured with a fastening member that is fastened by screwing. According to this configuration, the inner peripheral side member and the outer peripheral side member can be reliably fixed in a sandwiched state by the fastening structure by screwing the fastening member.

(4) In (2), the fixing portion is provided on one of the inner peripheral side member and the outer peripheral side member, and the other member of the inner peripheral side member and the outer peripheral side member is attached to the An elastic locking piece is provided for sandwiching the one member and the elastic locking piece, and the elastic locking piece is moved from a locking position for sandwiching the other member with the one member to assemble the other member. It is preferably possible to elastically displace to a retracted position that does not interfere with movement. According to this configuration, the other member can be easily assembled by elastically displacing the elastic locking piece from the locking position to the retracted position.

In (5) and (4), it is preferable that the elastic locking piece is formed with an inclined surface that is inclined with respect to the assembly direction of the other member. According to this configuration, if the other member is brought into sliding contact with the inclined surface during the assembly process, the elastic locking piece is displaced to the retracted position, resulting in excellent workability.

(6) In (2) to (5), it is preferable that the shield member is made of a braided wire, and the fixing portion penetrates the mesh of the braided wire. According to this configuration, the fixed portion is caught in the mesh of the braided wire, thereby restricting the relative displacement between the holding member and the shield member.

(7) In (6), the shield member is formed by deforming the sheet-like braided wire into a tubular shape and overlapping the end edges of both ends of the braided wire in the circumferential direction, and the fixing portion is , preferably penetrates the two overlapped end edges of the braided wire. According to this configuration, since the portion of the braided wire in which the end edge portion is double-layered has higher rigidity than the portion of the single layer that is not double-layered, the relative displacement between the holding member and the shield member is can be regulated more reliably.

(8) In (2) to (7), the detachment restricting portion is formed on the facing surfaces of the inner peripheral side member and the outer peripheral side member and includes a convex portion and a concave portion which are arranged to face each other. is preferred. According to this configuration, the ground wire and the shield member are bent between the convex portion of the inner peripheral side member and the concave portion of the outer peripheral side member and between the concave portion of the inner peripheral side member and the convex portion of the outer peripheral side member. sandwiched in a state. This clamping in the bent state creates a catch that resists the detachment operation of the ground wire and the shield member, thereby preventing the detachment of the ground wire and the shield member.

(9) In (1) to (8), the detachment restricting portion includes a terminal fitting fixed to the ground wire, a detachment restricting bolt passing through the terminal fitting and the shield member, and the detachment restricting bolt. Preferably, it also includes a disengagement restricting nut that is threaded. According to this configuration, it is possible to reliably prevent separation between the ground wire and the shield member by screwing the separation-regulating bolt and the separation-regulating nut.

In (10) and (9), it is preferable that either one of the release-regulating bolt and the release-regulating nut is provided integrally with the holding member.

According to this configuration, the positional relationship between the detachment restricting bolt or detachment restricting nut and the holding member is stable, so workability is good.

[Details of the embodiment of the present disclosure]
[Example 1]
A first embodiment embodying the present disclosure will be described with reference to FIGS. 1 to 3. FIG. It should be noted that the present invention is not limited to these examples, but is indicated by the scope of the claims, and includes all modifications within the scope and meaning equivalent to the scope of the claims. In the first embodiment, regarding the front-rear direction, the positive direction of the X-axis in FIGS. 1 to 3 is defined as the front. Regarding the left-right direction, the positive direction of the Y-axis in FIGS. 1 and 3 is defined as right. Regarding the vertical direction, the positive direction of the Z-axis in FIGS. 1 to 3 is defined as upward.

The wire harness A of Example 1 is configured with a shield unit 10 and a conductive path 14 . The shield unit 10 is for securely fixing the ground wire 15 to the tubular shield member 11 without using solder. The shield unit 10 has a holding member 20 that holds the ground wire 15 and the shield member 11 in contact with each other, and a detachment restricting portion 36 that restricts detachment of the ground wire 15 and the shield member 11 .

The shield member 11 is formed by deforming a sheet-like braided wire having a predetermined width into a tubular shape. The other edge (outer edge 13 ) of the shield member 11 is overlapped on the outer edge of one edge (inner edge 12 ) of the shield member 11 in the circumferential direction. The conducting path 14 is of a known type in which a conductor (not shown) is embedded in an insulating member (not shown), and is inserted through the shield member 11 .

The ground wire 15 is a coated electric wire in which the core wire 16 is surrounded by an insulating coating 17 . A base end portion of the ground wire 15 is attached to a vehicle body or the like (not shown). At the distal end of the ground wire 15, the insulating coating 17 is stripped off and the core wire 16 is exposed by a predetermined length. A terminal fitting 18 is fixed to the tip of the core wire 16 so as to be conductive. The terminal fitting 18 constitutes a detachment restricting portion 36 . The terminal fitting 18 has a circular connection hole 19 vertically penetrating the terminal fitting 18 .

The holding member 20 includes one inner peripheral member 21, one outer peripheral member 30, and a fixing portion 37. The inner peripheral side member 21 is made of a conductive material such as a metal or a conductive resin, and is a plate-like single component with the plate thickness direction directed vertically as a whole. The inner peripheral side member 21 has a base portion 22 and a detachment restricting functional portion 23 extending rearward from the rear edge of the base portion 22 . The inner peripheral side member 21 is arranged so as to contact the inner peripheral side edge portion 12 of the shield member 11 from the inner peripheral side (lower side in FIG. 2).

On the upper surface of the base portion 22, an inner peripheral side corrugated portion 24 that functions as a detachment restricting portion 36 is formed. The inner circumferential corrugated portion 24 is configured by alternately arranging a plurality of inner circumferential side convex portions 25 and a plurality of inner circumferential side concave portions 26 in a side view of the inner circumferential side member 21 viewed from the left-right direction. . Stud bolts 27 are arranged at the four corners of the upper surface of the base portion 22 (the surface facing the shield member 11), the axes of which extend vertically. The stud bolt 27 constitutes a fixing portion 37 . A detachment restricting bolt 28 is arranged on the upper surface of the detachment restricting functional portion 23 with its axis oriented in the vertical direction. The release restricting bolt 28 constitutes a release restricting portion 36 .

The outer peripheral side member 30 is made of a conductive material such as metal or conductive resin, and is a plate-shaped single component with the plate thickness direction directed vertically as a whole. In a plan view of the holding member 20 from above, the outer peripheral member 30 has the same size and dimensions as the base portion 22 of the inner peripheral member 21 . The outer peripheral side member 30 is arranged so as to contact the outer peripheral side edge portion 13 of the shield member 11 from the outer peripheral side (upper side in FIG. 2).

An outer wavy portion 31 that functions as a detachment restricting portion 36 is formed on the lower surface of the outer peripheral member 30 (the surface facing the shield member 11). The outer circumferential corrugated portion 31 is configured by alternately arranging a plurality of outer circumferential convex portions 32 and a plurality of outer circumferential concave portions 33 in a side view of the outer circumferential member 30 in the left-right direction. Four corners of the upper surface of the outer peripheral side member 30 are formed with cutouts 34 each having a shape of a quarter arc. A through hole 35 is formed through the notch 34 in the vertical direction in the outer peripheral member 30 .

When assembling the shield unit 10 , the inner peripheral side member 21 is accommodated between the inner peripheral surface of the shield member 11 and the outer peripheral surface of the conductive path 14 , and the upper surface of the inner peripheral side member 21 is placed on the inner peripheral surface of the shield member 11 . press against the surface. As a result, the stud bolts 27 and the detachment restricting bolts 28 penetrate through the inner peripheral side edge portion 12 and the outer peripheral side edge portion 13 so as to widen the gaps in the mesh of the braided wire forming the shield member 11. be done. The upper end portion of the stud bolt 27 and the upper end portion of the detachment restricting bolt 28 protrude upward from the outer peripheral edge portion 13 .

Next, the connecting hole 19 of the terminal fitting 18 connected to the ground wire 15 is fitted into the detachment restricting bolt 28, and the exposed portion of the core wire 16 of the ground wire 15 is attached to the upper surface of the outer peripheral edge portion 13. It is placed on the area overlapping the base portion 22 of the inner peripheral side member 21 . At this time, the core wire 16 is arranged so that the axis of the core wire 16 faces the front-rear direction (the direction in which the inner peripheral side convex portion 25 and the inner peripheral side concave portion 26 are aligned). The insulating coating 17 is arranged only in front of the front end of the inner peripheral side member 21 .

Next, the release control nut 38 is screwed into the release control bolt 28 from above the terminal fitting 18 and tightened. The release restricting bolt 28 constitutes a release restricting portion 36 . When the detachment restricting nut 38 is tightened, the inner peripheral edge portion 12 and the outer peripheral edge portion 13 of the shield member 11 are positioned between the detachment restricting functional portion 23 of the inner peripheral member 21 and the detachment restricting nut 38 . and the terminal fitting 18 are sandwiched. The shield member 11 and the core wire 16 of the ground wire 15 are electrically connected via a terminal fitting 18 . The shield member 11 and the inner peripheral side member 21 are also electrically connected.

After that, the outer peripheral side member 30 is assembled to the shield member 11 from above, the outer peripheral side wave portion 31 is placed on the exposed portion of the core wire 16 , and the stud bolt 27 is passed through the through hole 35 . Between the inner peripheral side member 21 and the outer peripheral side member 30, the inner peripheral side edge portion 12, the outer peripheral side edge portion 13, and the exposed portion of the core wire 16 of the shield member 11 are arranged in the vertical direction (the radial direction of the shield member 11). ).

Next, a fixing nut 39 is screwed into the upper end of the stud bolt 27 in the notch 34 and tightened. The fixing nut 39 constitutes the fixing portion 37 . When the fixing nut 39 is tightened, the inner peripheral side member 21 and the outer peripheral side member 30 approach each other vertically, the inner peripheral side wave portion 24 is brought into close contact with the inner peripheral side edge portion 12, and the inner peripheral side edge The portion 12 and the outer edge portion 13 are in close contact, the outer edge portion 13 and the exposed portion of the core wire 16 are in close contact, and the exposed portion of the core wire 16 and the outer corrugated portion 31 are in close contact. As a result, the exposed portion of the core wire 16 and the shield member 11 are electrically connected between the inner peripheral member 21 and the outer peripheral member 30 as well.

Between the inner peripheral side member 21 and the outer peripheral side member 30, the core wire 16 is vertically sandwiched in a bent state between the inner peripheral side convex portion 25 and the outer peripheral side recessed portion 33, and the inner peripheral side recessed portion. It is vertically sandwiched in a bent state between 26 and the outer peripheral protrusion 32 . Since the core wire 16 is sandwiched in a wave-shaped bent state, the core wire 16 is caught by the inner peripheral protrusion 25 and the outer peripheral protrusion 32 when the ground wire 15 is pulled forward. This catch prevents the ground wire 15 from being detached forward or shifted.

Even if the forward tensile force on the ground wire 15 is strong enough to exceed the frictional resistance between the core wire 16 and the inner and outer

corrugated portions

24 and 31, the detachment restricting bolts 28 cannot be connected to the terminal fittings 18. Since it is locked in the hole 19, the forward displacement of the ground wire 15 is prevented.

The shield unit 10 of the first embodiment includes a holding member 20 that holds the ground wire 15 and the cylindrical shield member 11 in contact with each other, and a detachment restricting portion 36 that restricts detachment of the ground wire 15 and the shield member 11. It has The ground wire 15 and the shield member 11 are brought into contact with each other by the holding member 20, and the ground wire 15 is prevented from being separated from the shield member 11 by the detachment restricting portion 36. - 特許庁According to the shield unit 10 of the first embodiment, the shield member 11 and the ground wire 15 can be kept connected without using solder.

The holding member 20 includes an inner peripheral side member 21 , an outer peripheral side member 30 and a fixing portion 37 . The inner peripheral side member 21 is arranged on the inner peripheral surface side of the shield member 11 . The outer peripheral member 30 is arranged on the outer peripheral surface side of the shield member 11 and sandwiches the shield member 11 and the core wire 16 of the ground wire 15 with the inner peripheral member 21 . The fixing portion 37 fixes the inner peripheral side member 21 and the outer peripheral side member 30 in a sandwiched state. By sandwiching between the inner peripheral member 21 and the outer peripheral member 30, the shield member 11 and the ground wire 15 can be reliably brought into contact with each other.

The fixing portion 37 includes a stud bolt 27 and a fixing nut 39 as fastening members that are fastened by screwing. With the fastening structure in which the fixing nut 39 is screwed into the stud bolt 27, the inner peripheral side member 21 and the outer peripheral side member 30 can be securely fixed in a sandwiched state.

The shield member 11 is made of a braided wire in which a plurality of fine metal wires are woven into a sheet. The stud bolt 27 penetrates the mesh of the braided wire. According to this configuration, the stud bolt 27 is caught in the mesh of the braided wire, so that the relative displacement between the holding member 20 and the shield member 11 can be restricted. The shield member 11 is formed by deforming a sheet-like braided wire into a tubular shape, and radially overlapping the edge portions (the inner peripheral side edge portion 12 and the outer peripheral side edge portion 13) of the braided wire at both ends in the circumferential direction. It is a thing. The stud bolt 27 penetrates the two overlapped edge portions (the inner edge portion 12 and the outer edge portion 13) of the braided wire. According to this configuration, the portion of the braided wire in which the inner peripheral side edge portion 12 and the outer peripheral side edge portion 13 are double-layered has higher rigidity than the single-layer portion that is not double-layered. Relative displacement between the holding member 20 and the shield member 11 can be more reliably regulated.

The detachment restricting portion 36 includes an inner peripheral side protrusion 25 , an inner peripheral side recess 26 , an outer peripheral side protrusion 32 and an outer peripheral side recess 33 . The inner peripheral side convex portion 25 and the inner peripheral side concave portion 26 are formed on the outer peripheral surface of the inner peripheral side member 21 facing the outer peripheral side member 30 . The outer peripheral side convex portion 32 and the outer peripheral side recessed portion 33 are formed on the inner peripheral surface of the outer peripheral side member 30 facing the inner peripheral side member 21 . The inner peripheral side convex portion 25 and the outer peripheral side recessed portion 33 are arranged so as to face each other, and the inner peripheral side concave portion 26 and the outer peripheral side convex portion 32 are arranged so as to face each other. According to this configuration, the ground wire 15 and the shield member 11 are bent between the inner peripheral side protrusion 25 and the outer peripheral side recess 33 and between the inner peripheral side recess 26 and the outer peripheral side protrusion 32. be sandwiched. This clamping in the bent state produces a catching and a large frictional resistance that resists the detachment operation of the ground wire 15 and the shield member 11 , thereby preventing the detachment of the ground wire 15 and the shield member 11 .

The detachment restricting portion 36 includes a terminal fitting 18 fixed to the ground wire 15, a detachment restricting bolt 28 passing through the terminal fitting 18 and the shield member 11, and a detachment restricting nut 38 screwed into the detachment restricting bolt 28. . According to this configuration, it is possible to reliably prevent separation of the ground wire 15 and the shield member 11 by screwing the separation-regulating bolt 28 and the separation-regulating nut 38 . The detachment restricting bolt 28 is provided integrally with the inner peripheral side member 21 that constitutes the holding member 20 . According to this configuration, the positional relationship between the detachment restricting bolt 28 and the inner peripheral side member 21 is stabilized, so workability is good.

The wire harness A of Embodiment 1 includes the shield unit 10 and a conductive path 14 inserted through the shield member 11 . The inner peripheral side member 21 and the outer peripheral side member 30 can be arranged at arbitrary positions in the wiring route of the wire harness A. As shown in FIG. Therefore, by arranging the shield unit 10 at a position close to the position of the body ground in the vehicle, the length of the ground wire 15 routed between the shield unit 10 and the body ground can be minimized. .

[Example 2]
A second embodiment embodying the present disclosure will be described with reference to FIGS. 4 to 6. FIG. In the first embodiment, regarding the front-rear direction, the positive direction of the X-axis in FIGS. 4 to 6 is defined as the front. Regarding the left-right direction, the positive direction of the Y-axis in FIGS. 4 and 6 is defined as right. Regarding the vertical direction, the positive direction of the Z-axis in FIGS. 4 to 6 is defined as upward.

The wire harness B of Example 2 is configured with a shield unit 40 and a conductive path 14 . The shield unit 40 has a holding member 41 that holds the ground wire 15 and the shield member 11 in contact with each other, and a detachment restricting portion 50 that restricts detachment of the ground wire 15 and the shield member 11 . The shield member 11 and the conductive path 14 are the same as in the first embodiment. The ground wire 15 is a coated electric wire in which a core wire 16 is surrounded by an insulating coating 17 . A base end portion of the ground wire 15 is attached to a vehicle body or the like. At the distal end of the ground wire 15, the insulating coating 17 is stripped off and the core wire 16 is exposed by a predetermined length.

The holding member 41 includes one inner peripheral member 42 , one outer peripheral member 51 and a fixing portion 52 . The inner peripheral side member 42 is a single part formed by bending a metal plate-like member or a single part made of a conductive member such as a conductive resin. The inner peripheral side member 42 has a base portion 43 whose plate thickness direction is oriented vertically, and a plurality of elastic locking pieces 45 integrally formed with the base portion 43 . The inner peripheral side member 42 is arranged so that the base portion 43 is brought into contact with the inner peripheral side edge portion 12 of the shield member 11 from the inner peripheral side (lower side in FIG. 5).

In a plan view of the inner peripheral side member 42 from above, the base portion 43 has a rectangular shape. A plurality of protrusions 44 functioning as the detachment restricting portion 50 are formed on the upper surface of the base portion 43 . The convex portion 44 is a portion formed by pressing the plate-shaped base portion 43 upward from below, and has a hemispherical shape. The plurality of protrusions 44 are arranged in a line with intervals in the front-rear direction. The plurality of elastic locking pieces 45 have a shape extending upward from four sides forming the outer peripheral edge of the base portion 43 and function as the fixing portion 52 . Two elastic locking pieces 45 are formed on the front edge and the rear edge of the outer peripheral edge of the base 43, respectively, with a space left and right. One elastic locking piece 45 is formed on each of the left and right side edges of the outer peripheral edge of the base portion 43 .

The elastic locking piece 45 includes a supporting portion 46 that extends vertically upward from the outer peripheral edge of the base portion 43 in a flat plate shape, and a locking portion 47 that extends obliquely downward from the upper edge of the supporting portion 46 in a cantilever shape. have The locking portion 47 is arranged at a position inside the support portion 46 , that is, at a position facing the upper surface of the base portion 43 . A surface of the engaging portion 47 opposite to the support portion 46 functions as an inclined surface 48 that is inclined with respect to the attachment/detachment direction (vertical direction) of the outer peripheral member 51 with respect to the inner peripheral member 42 . A return portion 49 projecting obliquely downward is formed at the extending end portion (lower end portion) of the locking portion 47 . The return portion 49 protrudes toward the support portion 46 in plan view.

The outer peripheral side member 51 is made of a conductive material such as metal or conductive resin, and is a plate-shaped single component with the plate thickness direction directed vertically as a whole. In a plan view of the holding member 41 from above, the outer peripheral member 51 has the same size and dimensions as the base portion 43 of the inner peripheral member 42 . The outer peripheral side member 51 is arranged so as to come into contact with the outer peripheral side edge portion 13 of the shield member 11 from the outer peripheral side (upper side in FIG. 5).

A plurality of recessed portions 53 functioning as detachment restricting portions 50 are formed on the lower surface of the outer peripheral side member 51 (the surface facing the shield member 11). The plurality of recesses 53 are formed by recessing the lower surface of the outer peripheral member 51 in a spherical shape. The plurality of recessed portions 53 are arranged in a line at intervals in the front-rear direction. The plurality of recesses 53 are arranged so as to individually face the plurality of protrusions 44 .

When assembling the shield unit 40, the inner peripheral side member 42 is accommodated between the inner peripheral surface of the shield member 11 and the outer peripheral surface of the conductive path 14, and the inner peripheral side member 42 is attached to the inner peripheral surface of the shield member 11. impose. As a result, the plurality of elastic locking pieces 45 pass through the meshes of the braided wires forming the shield member 11, and the upper end side portion of the support portion 46, the entire locking portion 47, and the entire return portion 49 are formed on the outer circumference. It is located above the side edge portion 13 .

Next, the exposed portion of the core wire 16 of the ground wire 15 is placed on a region of the upper surface of the outer edge portion 13 overlapping the base portion 43 of the inner peripheral member 42 . At this time, the core wire 16 is arranged so that the axis of the core wire 16 is positioned directly above the plurality of protrusions 44 . The insulating coating 17 is arranged only in front of the front end of the inner circumferential side member 42 .

Next, the outer peripheral side member 51 is assembled from above the shield member 11, and the inner peripheral side edge portion 12 and the outer peripheral side edge portion 13 are formed between the upper surface of the inner peripheral side member 42 and the lower surface of the outer peripheral side member 51. The core wire 16 is sandwiched. At this time, the outer peripheral edge of the outer peripheral side member 51 is brought into sliding contact with the inclined surfaces 48 of the plurality of locking portions 47 to elastically deform all the elastic locking pieces 45 . The outer peripheral member 51 is generally positioned in the front-rear direction and the left-right direction by slidingly contacting the locking portion 47 . As a result, the plurality of concave portions 53 of the outer peripheral side member 51 approach the plurality of convex portions 44 of the inner peripheral side member 42 without being displaced. The edge portion 12 is pushed upward by the protrusion 44 and enters the recess 53 .

When the upper end of the outer peripheral edge of the outer peripheral member 51 passes through the lower end of the engaging portion 47 and the upper end of the return portion 49, the elastic engaging piece 45 is elastically restored, and the engaging portion 47 moves toward the upper surface of the outer peripheral member 51. Displaced, the lower end of the return portion 49 elastically abuts against the upper surface of the outer peripheral member 51 . Due to this elastic contact, the outer member 51 is fixed to the inner member 42 in an assembled state, and the core wire 16 and the outer peripheral edge portion 13 are closely contacted and electrically connected. . The outer peripheral edge portion 13 and the inner peripheral edge portion 12 are also in close contact, the inner peripheral side member 42 and the inner peripheral side edge portion 12 are also in close contact, and the core wire 16 and the outer peripheral side member 51 are also in close contact.

Between the inner peripheral side member 42 and the outer peripheral side member 51, the core wire 16 is vertically sandwiched between the plurality of convex portions 44 and the plurality of concave portions 53 in a bent state. Since the core wire 16 is bent at a plurality of locations and sandwiched, when the ground wire 15 is pulled forward, the core wire 16 is caught between the convex portion 44 and the inner peripheral edge of the concave portion 53 on the lower surface of the outer peripheral member 51. Get caught. This catch prevents the ground wire 15 from being detached forward or shifted.

The shield unit 40 of the second embodiment includes a holding member 41 that holds the ground wire 15 and the cylindrical shield member 11 in contact with each other, and a detachment restricting portion 50 that restricts detachment of the ground wire 15 and the shield member 11. It has The holding member 41 brings the ground wire 15 and the shield member 11 into a conductive contact state, and the detachment restricting portion 50 prevents the ground wire 15 from being detached from the shield member 11 . According to the shield unit 40 of the second embodiment, the shield member 11 and the ground wire 15 can be kept connected without using solder.

The holding member 41 includes an inner peripheral side member 42 , an outer peripheral side member 51 and a fixing portion 52 . The inner peripheral side member 42 is arranged on the inner peripheral surface side of the shield member 11 . The outer peripheral member 51 is arranged on the outer peripheral surface side of the shield member 11 and sandwiches the shield member 11 and the core wire 16 of the ground wire 15 with the inner peripheral member 42 . The fixing portion 52 fixes the inner peripheral side member 42 and the outer peripheral side member 51 in a sandwiched state. By sandwiching between the inner peripheral member 42 and the outer peripheral member 51, the shield member 11 and the ground wire 15 can be reliably brought into contact with each other.

The fixed portion 52 is composed of a plurality of elastic locking pieces 45 provided on the inner peripheral side member 42 . The plurality of elastic locking pieces 45 vertically sandwich the outer peripheral member 51 with the base portion 43 of the inner peripheral member 42 . The elastic locking piece 45 can be elastically displaced from the locked position where the outer peripheral member 51 is sandwiched between the inner peripheral member 42 and the retracted position where the assembly operation of the outer peripheral member 51 is not hindered. is. The elastic locking piece 45 is formed with an inclined surface 48 that is inclined with respect to the assembly direction of the outer peripheral member 51 .

According to this configuration, the outer peripheral member 51 can be easily assembled by elastically displacing the elastic locking piece 45 from the locking position to the retracted position. By elastically displacing the elastic locking piece 45 from the locking position to the retracted position, the outer peripheral member 51 can be easily removed. Further, when the outer peripheral member 51 is brought into sliding contact with the inclined surface 48 in the process of assembling the outer peripheral member 51, the elastic locking piece 45 is displaced to the retracted position, which improves workability.

The shield member 11 consists of a braided wire. The support portion 46 of the elastic locking piece 45 penetrates the mesh of the braided wire. According to this configuration, the elastic locking piece 45 is caught in the mesh of the braided wire, thereby restricting the relative displacement between the inner peripheral side member 42 and the shield member 11 . The shield member 11 is formed by deforming a sheet-like braided wire into a tubular shape, and radially overlapping the edge portions (the inner peripheral side edge portion 12 and the outer peripheral side edge portion 13) of the braided wire at both ends in the circumferential direction. It is a thing. The elastic locking piece 45 radially penetrates the two superimposed edges of the braided wire (the inner edge 12 and the outer edge 13). According to this configuration, the portion of the braided wire in which the inner peripheral side edge portion 12 and the outer peripheral side edge portion 13 are double-layered has higher rigidity than the single-layer portion that is not double-layered. Relative displacement between the inner peripheral side member 42 and the shield member 11 can be more reliably restricted.

The detachment restricting portion 50 includes a convex portion 44 and a concave portion 53 formed on opposing surfaces of the inner peripheral side member 42 and the outer peripheral side member 51 . The convex portion 44 and the concave portion 53 are arranged so as to face each other. According to this configuration, the ground wire 15 and the shield member 11 are sandwiched between the convex portion 44 and the concave portion 53 in a bent state. This clamping in the bent state produces a catch that resists the detachment operation of the ground wire 15 and the shield member 11, and the detachment of the ground wire 15 and the shield member 11 is prevented.

[Example 3]
A third embodiment embodying the present disclosure will be described with reference to FIG. In the third embodiment, regarding the front-rear direction, the positive direction of the X-axis in FIG. 7 is defined as the front. Regarding the vertical direction, the positive direction of the Z-axis in FIG. 7 is defined as upward.

The wire harness C of Embodiment 3 is configured with a shield unit 60 and a conductive path 14 . The shield unit 60 includes a holding member 61 that holds the ground wire 15 and the tubular shield member 11 in contact with each other, and a release restricting portion 62 that restricts separation of the ground wire 15 and the shield member 11 . Each of the holding member 61 and the detachment restricting portion 62 includes a terminal fitting 18 fixed to the ground wire 15 , an inner peripheral side member 63 , a bolt 65 and a nut 67 . In other words, the holding member 61 and the detachment restricting portion 62 are configured by a common member.

The ground wire 15, the terminal fitting 18 and the shield member 11 are the same as in the first embodiment. The inner peripheral side member 63 is made of a conductive material such as a metal or a conductive resin, and is a plate-like single component whose plate thickness direction is directed vertically as a whole. The inner peripheral side member 63 is arranged so as to be in contact with the inner peripheral side edge portion 12 of the shield member 11 from the inner peripheral side (lower side). A mounting hole 64 is formed in the rear end portion of the inner peripheral member 63 .

When assembling the shield unit 60, the inner peripheral side member 63 is accommodated between the inner peripheral surface of the shield member 11 and the outer peripheral surface of the conductive path 14, and the inner peripheral side member 63 is attached to the inner peripheral surface of the shield member 11. impose. Next, the bolt 65 is passed through the mounting hole 64 from below the inner peripheral member 63 . At this time, the bolt 65 is penetrated through the inner peripheral side edge portion 12 and the outer peripheral side edge portion 13 so as to widen the gaps in the mesh of the braided wire forming the shield member 11 . An upper end portion of the bolt 65 protrudes upward from the outer peripheral edge portion 13 .

Next, the connection hole 19 of the terminal fitting 18 connected to the ground wire 15 is fitted into the bolt 65, and the nut 67 is screwed onto the bolt 65 from above the terminal fitting 18 and tightened. When the nut 67 is tightened, the inner peripheral side edge portion 12 and the outer peripheral side edge portion 13 of the inner peripheral side member 63, the shield member 11, and the terminal fitting 18 are sandwiched between the head 66 of the bolt 65 and the nut 67. Attached. As a result, the shield member 11 and the core wire 16 of the ground wire 15 are electrically connected via the terminal fitting 18 . The shield member 11 and the inner peripheral side member 63 are also electrically connected. Even if a forward tensile force acts on the earth wire 15, the bolt 65 is locked in the connection hole 19 of the terminal fitting 18, so that the earth wire 15 is prevented from being displaced forward.

[Example 4]
A fourth embodiment embodying the present disclosure will be described with reference to FIG. In the first embodiment, regarding the front-rear direction, the positive direction of the X-axis in FIG. 8 is defined as the front. Regarding the vertical direction, the positive direction of the Z-axis in FIG. 8 is defined as upward.

The wire harness D of Example 4 is configured with a shield unit 70 and a conductive path 14 . The shield unit 70 secures the ground wire 15 to the tubular shield member 11 without using solder so that the ground wire 15 can be electrically connected. The shield unit 70 has a holding member 71 that holds the ground wire 15 and the shield member 11 in contact with each other, and a detachment restricting portion 84 that restricts detachment of the ground wire 15 and the shield member 11 . The ground wire 15, the shield member 11 and the conductive path 14 are the same as in the first embodiment.

The holding member 71 is configured with a bifurcated member 72 and a fixing portion 83 . The bifurcated member 72 is made of a conductive material such as metal or conductive resin, and has a cantilevered shape in which an inner peripheral side plate portion 74 and an outer peripheral side plate portion 75 are extended rearward from a base portion 73 . Both the inner peripheral side plate portion 74 and the outer peripheral side plate portion 75 are arranged so as to face each other in the vertical direction with the plate thickness direction directed in the vertical direction. A front end portion of the inner peripheral side plate portion 74 and a front end portion of the outer peripheral side plate portion 75 are formed with first insertion holes 76 penetrating vertically. A rear end portion of the inner peripheral side plate portion 74 and a rear end portion of the outer peripheral side plate portion 75 are formed with second insertion holes 77 penetrating in the vertical direction.

The shield unit 70 of the fourth embodiment is arranged at the front end portion of the shield member 11 in the axial direction. When assembling the shield unit 70 , the first bolt 78 is inserted through the first insertion hole 76 of the inner peripheral side plate portion 74 and the first insertion hole 76 of the outer peripheral side plate portion 75 , and the first nut 79 is attached to the first bolt 78 . Tighten it lightly. The first bolt 78 and the first nut 79 constitute a fixing portion 83 and a detachment restricting portion 84 . The first bolt 78 is positioned further forward than the front end of the shield member 11 .

Next, the bifurcated member 72 is brought closer to the shield member 11 from the front, and the inner peripheral side plate portion 74 is inserted between the inner peripheral side edge portion 12 and the inner peripheral surface and the outer peripheral surface of the conductive path 14 . The outer peripheral side plate portion 75 is arranged so as to cover the outer peripheral side edge portion 13 from the outer peripheral side. The base portion 73 is arranged forward of the front end of the shield member 11 . The core wire 16 of the ground wire 15 is arranged between the outer peripheral edge portion 13 and the outer peripheral plate portion 75 . In this manner, the front end portion of the shield member 11 and the core wire 16 are sandwiched between the inner peripheral side plate portion 74 and the outer peripheral side plate portion 75 .

Next, the second bolt 80 is inserted from below the inner peripheral side plate portion 74 into the second insertion hole 77 of the inner peripheral side plate portion 74 and passed through the inner peripheral side edge portion 12 and the outer peripheral side edge portion 13 . , through the second insertion hole 77 of the outer peripheral side plate portion 75 . The second bolt 80 penetrates through the inner peripheral side edge portion 12 and the outer peripheral side edge portion 13 so as to expand the mesh of the braided wire.

Next, screw the second nut 81 onto the second bolt 80 . The second bolt 80 constitutes a fixing portion 83 and a detachment restricting portion 84 . The second nut 81 also constitutes a fixing portion 83 and a detachment restricting portion 84 . After that, the first nut 79 and the second nut 81 are tightened. By this tightening, the inner peripheral side edge portion 12 , the outer peripheral side edge portion 13 and the core wire 16 are firmly sandwiched between the inner side plate portion and the outer peripheral side plate portion 75 . As a result, the outer edge portion 13 and the core wire 16 are in close contact with each other, and the shield member 11 and the ground wire 15 are electrically connected.

[Other embodiments]
The invention is not limited to the embodiments illustrated by the above description and drawings, but is indicated by the claims. The present invention includes all modifications within the meaning and equivalents of the claims and the scope of the claims, including the following embodiments.
In Examples 1 to 4, the ground wire may be arranged so as to be sandwiched between the inner peripheral edge portion and the outer peripheral edge portion of the braided wire. You may arrange|position so that it may be pinched between a part and an inner peripheral side member.
In Examples 1 to 4, the fixing part may pass through a single-layer portion of the braided wire that is not double-layered.
In Examples 1 to 4, the inner peripheral side member may be made of an insulating material.
In Examples 1 to 4, the outer member may be made of an insulating material.
In Examples 1 to 4, the shield member is not limited to a braided wire in which thin metal wires are woven, but may be a braided wire in which a synthetic resin thread whose outer circumference is surrounded by a metal layer, a metal foil, or the like is used.

In Embodiments 1, 3, and 4, a holding nut may be fixed to the inner peripheral side member, and a holding bolt may be passed through the outer peripheral side member and the shield member and screwed into the holding nut.
In Embodiments 1 and 4, the detachment restricting bolt may be provided so as to move relative to the inner peripheral member.
In Embodiments 1 and 4, the separation-regulating nut may be fixed to the inner peripheral side member, and the separation-regulating bolt may be screwed into the separation-regulating nut from the outer peripheral surface side.
In the second embodiment, elastic locking pieces may be provided on the outer peripheral member.
In Example 2, the elastic locking piece may have a shape that does not have an inclined surface.
As a structure for restricting separation of the ground wire and the shield member, the ground wire may be passed through the mesh of the braided wires of the shield member, and the shield member and the ground wire may be sandwiched from the inner and outer peripheral sides. .

A, B, C, D... Wire harness 10... Shield unit 11... Shield member 12... Inner peripheral side edge 13... Outer peripheral side edge 14... Conductive path 15... Earth wire 16... Core wire 17... Insulating coating 18... Terminal fitting 19 Connection hole 20 Holding member 21 Inner peripheral member 22 Base 23 Detachment restricting functional portion 24 Inner wavy portion 25 Inner convex portion (convex portion)
26... Inner peripheral recess (recess)
27... Stud bolt (fixed part)
28... Detachment restricting bolt 30... Outer peripheral side member 31... Outer peripheral side waveform part 32... Outer peripheral side convex part (convex part)
33... Peripheral concave portion (concave portion)
34... Notch 35... Through hole 36... Detachment restricting part 37... Fixed part 38... Detachment restricting nut (fastening member)
39 ... Fixing nut (fastening member)
Reference Signs List 40 Shield unit 41 Holding member 42 Inner peripheral member 43 Base portion 44 Convex portion 45 Elastic engaging piece 46 Supporting portion 47 Engaging portion 48 Inclined surface 49 Return portion 50 Detachment restricting portion 51 Outer peripheral member 52 Fixed portion 53 Recess 60 Shield unit 61 Holding member 62 Detachment restricting portion 63 Inner peripheral member 64 Mounting hole 65 Bolt (fastening member, detachment restricting bolt)
66...Head 67...Nut (fastening member, release control nut)
70 Shield unit 71 Holding member 72 Bifurcated member 73 Base portion 74 Inner peripheral side plate portion 75 Outer peripheral side plate portion 76 First insertion hole 77 Second insertion hole 78 First bolt (fastening member, for restricting separation) bolt)
79... First nut (fastening member, detachment restricting nut)
80...Second bolt (fastening member, detachment restricting bolt)
81 . . . Second nut (fastening member, detachment restricting nut)
83... Fixed part 84... Detachment restricting part

Claims

a holding member that holds the ground wire and the cylindrical shield member in contact;
A shield unit comprising a detachment restricting portion that restricts detachment of the ground wire and the shield member.
The holding member is
an inner peripheral member disposed on the inner peripheral surface side of the shield member;
an outer peripheral member disposed on the outer peripheral surface side of the shield member and sandwiching the shield member and the ground wire between itself and the inner peripheral member;
2. The shield unit according to claim 1, further comprising a fixing portion that fixes the inner peripheral member and the outer peripheral member in the sandwiched state.
　The shield unit according to claim 2, wherein the fixed part is provided with a fastening member that is fastened by screwing.
The fixing portion is provided on one of the inner peripheral side member and the outer peripheral side member, and sandwiches the other member of the inner peripheral side member and the outer peripheral side member between itself and the one member. Equipped with an elastic locking piece to attach
The elastic locking piece can be elastically displaced from a locking position in which the other member is sandwiched between the one member and the other member to a retracted position in which the assembly operation of the other member is not hindered. 3. The shield unit of claim 2.
The shield unit according to claim 4, wherein the elastic locking piece is formed with an inclined surface that is inclined with respect to the assembly direction of the other member.
The shield unit according to any one of claims 2 to 5, wherein the shield member is made of a braided wire, and the fixing portion penetrates the mesh of the braided wire.
The shield member is formed by deforming the sheet-like braided wire into a tubular shape, and overlapping the end edges of both ends of the braided wire in the circumferential direction,
7. The shield unit according to claim 6, wherein the fixing portion penetrates two overlapping edge portions of the braided wire.
8. The detachment restricting portion includes a convex portion and a concave portion which are formed on opposing surfaces of the inner peripheral side member and the outer peripheral side member and are arranged so as to face each other. The shield unit described in .
2. The detachment restricting portion includes a terminal fitting fixed to the ground wire, a detachment restriction bolt passing through the terminal fitting and the shield member, and a detachment restriction nut screwed into the detachment restriction bolt. 9. A shield unit according to any one of claims 8 to 9.
The shield unit according to claim 9, wherein one of the release-regulating bolt and the release-regulating nut is provided integrally with the holding member.