JP6221794B2 - Electromagnetic shield member and wire harness - Google Patents

Description

  The present invention relates to an electromagnetic shield member that shields electromagnetic noise and a wire harness including the same.

  Conventionally, in a wire harness mounted on a vehicle such as an automobile, a tubular braided wire as shown in Patent Document 1 is often employed as a shield member that can be deformed in accordance with the deformation of an electric wire. The braided wire has a structure in which bare conductors are knitted into a cylindrical shape. The bare conductor is, for example, a plated copper wire. The shield member is formed in a cylindrical shape surrounding the periphery of the electric wire that is the target of the electromagnetic shield. Hereinafter, the electric wire to be subjected to electromagnetic shielding is referred to as a main electric wire.

  In general, when the main electric wire is wired from the opening of the metal casing into the casing, the cylindrical braided wire is covered with a cylindrical portion whose end protrudes from the opening in the metal casing. The ring is connected to the cylindrical part of the opening of the housing. In the caulking, the end of the braided wire is sandwiched and held between the tubular portion of the casing. As a result, the end of the braided wire is grounded to the housing.

  Moreover, in the example which patent document 1 shows, the edge part of a braided wire is connected to the metal shield shell member fixed to the edge of the opening in a housing | casing by caulking. The shield shell member is an independent member that can be attached to the casing and corresponds to a cylindrical portion that protrudes from the opening for introducing an electric wire in the metal casing.

  The shield shell member includes a cylindrical portion that covers the end of the braided wire and a fastening portion that is connected to the cylindrical portion and is fastened to the housing. In the shield shell shown in Patent Document 1, the cylindrical member is an example of a cylindrical portion, and the third flange portion is an example of a fastening portion.

JP 2006-344398 A

  By the way, in a shield member for a vehicle, it may be effective to employ an insulated wire (covered wire) as a shield wire instead of a bare conducting wire.

  For example, in order to achieve both the light weight of the shield member and the required specifications of the shield characteristics, the aluminum wire mainly composed of lightweight aluminum and the copper wire composed mainly of copper having excellent shielding characteristics are used as shield wires. Sometimes you want to mix. In this case, if at least the aluminum wire is covered, the different metal contact corrosion of the aluminum wire can be prevented.

  When an insulated wire is adopted as a shield wire, the insulation coating obstructs the housing grounding of the conductor (core wire) at the end of the insulated wire (shield wire). Moreover, it takes a lot of labor to strip off the insulating coating at the end of each insulated wire (shield wire) constituting the shield member.

  An object of this invention is to be able to earth | ground a housing | casing easily for the edge part of a shield strand, when an insulated wire is employ | adopted as a shield strand in a shield member.

  The electromagnetic shielding member which concerns on a 1st aspect is provided with several covering shield strand, an edge part holding member, and a metal welding part. Each of the plurality of sheathed shield wires has a conductive core wire and an insulating coating formed on the outer peripheral surface of the core wire. That is, the sheathed shield wire is an insulated wire. The end holding member is a conductive member that is formed in an annular shape and has a metal annular holding portion in which the ends of each of the plurality of covered shield strands are joined in an annularly arranged state. The said metal welding part is welded to the part in which the edge part of each said covering shield strand in the said annular holding part is located including a metal material. Thereby, the said metal welding part has joined the edge part of the core wire in each of several covering shield strand to the cyclic | annular holding | maintenance part.

In the first aspect, the end holding member includes a shield shell member and the annular holding portion. The shield shell member is a conductive member having an annular tube portion and a fastening portion that is connected to the tube portion and is fastened to another member. In this case, the annular holding portion is formed of a bending-deformable metal band-shaped member in which end portions of the core wires of each of the plurality of sheathed shield wires arranged in parallel are joined side by side, and the tube in the shield shell member It has the structure connected to the outer peripheral surface of the part. The said annular holding part is connected to the said cylinder part in the state which pinches | interposes the said metal welding part between the said cylinder parts.

The electromagnetic shielding member according to the second aspect, which is one embodiment of an electromagnetic shielding member according to the first state-like. The electromagnetic shielding member which concerns on a 2nd aspect is further provided with the flexible shield strand connection part. Of the three or more sheathed shield wires arranged in parallel in the plane, three or more of the sheathed shield wires arranged in parallel in the plane are held in the annular holding portion to be annularly arranged. when the two coating shield wires located at one end and the other end along the parallel direction with the first cover shield wires and the second coating shield wire, respectively, the shield wire connecting portion, the upper Symbol coating an intermediate portion to each other between the both ends in the shield wire each, between the first cover shield wires adjacent to each other in a state arranged annularly and the second coating shield wires by being held by the annular holding portion Connected at intervals except for.

The electromagnetic shielding member according to the third aspect is an aspect of the electromagnetic shielding member according to the second aspect. The electromagnetic shield member according to the third aspect further includes a shield strand binding member. The shield wire binding member is a member that gently binds the intermediate portion of the first sheathed shield wire and the intermediate portion of the second sheathed shield wire with a space therebetween.

The wire harness which concerns on a 4th aspect is equipped with the main electric wire used as the object of electromagnetic shielding, and the electromagnetic shielding member which concerns on each said aspect formed surrounding the circumference | surroundings of the main electric wire. In this case, the end holding member in the electromagnetic shield member is formed in an annular shape surrounding a part of the main electric wire.

  In each of the above aspects, the covered shield strand is an insulated wire that functions as a shield strand. Moreover, the metal welding part welded to the part in which the edge part of each covering shield strand in a metal annular holding part is located joins the core wire of the edge part of a covering shield strand to the annular holding part. This metal welded portion is formed by solidification of the molten metal supplied to the end portion of the sheathed shield wire with the insulating coating formed thereon. In this case, the insulating coating at the end of each of the coated shield strands comes into contact with the hot molten metal and elutes from the surface of the core wire.

  Therefore, according to each of the above embodiments, the end of the sheathed shield wire can be easily joined to the annular holding portion without requiring a step of previously removing the insulation coating of the end of the sheathed shield wire, The end of the sheathed shield wire can be grounded easily.

Moreover, according to said each aspect, the edge part of the core wire in each covering shield strand can be joined with respect to the flat strip | belt-shaped member before connecting to a shield shell member. Therefore, the covering shield strand can be easily joined to the annular holding portion (strip member). In addition, the strip | belt-shaped member to which the edge part of the covering shield strand was joined is bent circularly along the outer peripheral surface of the cylinder part of a shield shell member, and is connected to the cylinder part.

Further, in the second aspect, the plurality of covered shield strands are connected by a flexible shield strand connecting portion in a state of being arranged at intervals. Therefore, even when the electromagnetic shield member is bent and attached along the path of the main electric wire, the spacing between the sheathed shield wires is maintained substantially constant, and the plurality of sheathed shield wires are partially in the circumferential direction. It is almost uniformly distributed. As a result, it can be prevented that a large gap is partially formed between the covered shield strands and the shielding performance is deteriorated.

Further, according to the second aspect, the plurality of covered shield strands are integrated in a comb shape by the flexible shield strand connecting portion. Therefore, it becomes easy to handle a plurality of coated shield strands when joining each coated shield strand to the annular holding portion.

Further, according to the third aspect, the shield wire binding member forms a large gap between the first covered shield wire not connected by the shield wire connecting portion and the adjacent second covered shield wire. It can also be prevented. Accordingly, it is possible to more reliably prevent the shielding performance from deteriorating.

It is a perspective view of the principal part of the wire harness 10 which concerns on embodiment. 2 is an exploded perspective view of a main part of the wire harness 10. FIG. It is sectional drawing of the edge part periphery vicinity of the covering shield strand in the electromagnetic shielding member with which the wire harness 10 is provided. It is a figure which shows the covering shield strand joining process in the middle of manufacturing the electromagnetic shielding member with which the wire harness 10 is provided. 3 is a plan view of a shield wire group included in an electromagnetic shield member according to a first application example applicable to the wire harness 10. FIG. It is a perspective view of the principal part of 10 A of wire harnesses which concern on a 1st application example. It is a perspective view of the principal part of the wire harness 10B which concerns on a 2nd application example. It is a perspective view of the principal part of the electromagnetic shielding member which concerns on the 3rd application example applicable to the wire harness. It is a perspective view of the principal part of the electromagnetic shielding member which concerns on the 4th application example applicable to the wire harness. 3 is a plan view of a shield wire group according to an application example applicable to the wire harness 10. FIG.

  Hereinafter, embodiments will be described with reference to the accompanying drawings. The following embodiment is an example embodying the present invention, and is not an example of limiting the technical scope of the present invention. An electromagnetic shield member and a wire harness including the electromagnetic shield member shown below are for vehicles such as automobiles.

<Wire harness>
First, the configuration of the wire harness 10 according to the embodiment will be described with reference to FIGS. As shown in FIGS. 1 and 2, the wire harness 10 includes a molded resin-attached electric wire 9 including a main electric wire 81 to be subjected to electromagnetic shielding, and an electromagnetic shielding member 1.

<Electric wire with molded resin>
The molded resin-attached electric wire 9 includes a terminal-attached electric wire 80 and a resin molded portion 7. The terminal-attached electric wire 80 has a main electric wire 81 and a terminal 82 connected to the end thereof. 1 and 2 show the structure of the molded resin-attached electric wire 9 in the vicinity of one end of the main electric wire 81. The molded resin-attached electric wire 9 has a structure shown in FIGS.

  The main electric wire 81 is an insulated electric wire having, for example, a core wire 811 that is a linear conductor and an insulating coating 812 formed on the outer peripheral surface thereof. In this case, at the end portion of the main electric wire 81, the end portion of the core wire 811 extends from the end of the insulating coating 812.

  The core wire 811 of the main electric wire 81 is a metal wire material whose main component is, for example, copper or aluminum. The insulation coating 812 of the main electric wire 81 is a coating of an insulating (non-conductive) synthetic resin whose main component is, for example, polyvinyl chloride or polyethylene.

  The terminal 82 is a metal fitting connected to the end of the core wire 811 in the main electric wire 81. For example, it is conceivable that the terminal 82 is connected to the end of the core wire 811 by welding, or the terminal 82 is crimped to the end of the core wire 811. The terminal 82 is, for example, a copper alloy member such as copper or brass, or a tin alloy in which tin (Sn) plating or tin (Ag), copper (Cu), bismuth (Bi) or the like is added to tin. This is a conductive member that has been plated.

  The resin mold portion 7 is a synthetic resin member molded so as to seal the entire portion of the core wire 811 of the main wire 81 extending from the insulating coating 812 and the portion of the terminal 82 that contacts the core wire 811. The resin mold portion 7 is formed by insert molding using the region from the end portion of the insulating coating 812 to a part of the terminal 82 in the electric wire with terminal 80 as an insert portion.

  The resin mold part 7 is a molded member of an insulating synthetic resin such as polypropylene, polyethylene, polyvinyl chloride, polybutylene terephthalate, or polyamide.

  In the present embodiment, the molded resin-attached electric wire 9 includes a plurality of electric wires with terminals 80, and the resin molded portion 7 collects the ends of the main electric wires 81 in the plural electric wires with terminals 80 in a state where they are arranged in parallel. And hold. It is also conceivable that the number of main wires 81 is one.

<Electromagnetic shield member>
The electromagnetic shield member 1 includes a plurality of sheathed shield wires 2, end holding members 3, and metal welds 4. FIG. 3 is a longitudinal sectional view around the end of the sheathed shield wire 2 in the electromagnetic shield member 1. 1 to 3 show the structure of the electromagnetic shield member 1 in the vicinity of one end of the plurality of sheathed shield wires 2. The electromagnetic shield member 1 has a structure shown in FIGS. 1 to 3 at both ends of the plurality of sheathed shield wires 2.

  As shown in FIG. 3, each of the sheathed shield wires 2 is an insulated wire having a conductive core wire 21 and an insulating coating 22 formed on the outer peripheral surface of the core wire 21. If a stranded wire in which a plurality of strands are twisted together is adopted as the core wire 21, the flexibility of the covered shield strand 2 can be enhanced. It is also conceivable that the core wire 21 is a single wire.

  For example, the sheathed shield wire 2 is an enameled wire having a linear conductor (core wire 21) and an insulating coating (enamel coating) formed by applying a resin paint on the surface of the conductor. When the covering shield wire 2 is an enameled wire, the insulating coating 22 is a coating of an insulating synthetic resin containing, for example, modified polyurethane, polyesterimide, polyamideimide or the like.

  It is also conceivable that the insulating coating 22 of the sheathed shield wire 2 is a coating formed by extrusion molding on the outside of the core wire 21. The insulating coating 22 in this case is a coating of an insulating synthetic resin whose main component is, for example, polyvinyl chloride or polyethylene.

  The core wire 21 of the sheathed shield wire 2 is a metal wire whose main component is, for example, copper or aluminum. Although it is conceivable that the core wires of all the sheathed shield wires 2 are wires of the same metal material, it is also conceivable that the electromagnetic shield member 1 includes a plurality of types of sheathed shield wires 2 each having a core wire 21 of a different material. .

  For example, in the electromagnetic shielding member 1, the sheathed shield wire 2 having the core wire 21 mainly composed of light aluminum and the sheathed shield wire 2 having the core wire 21 mainly composed of copper having excellent shielding characteristics are mixed. It is possible that The ratio of the multiple types of core wires 21 is determined in consideration of, for example, a balance between the weight reduction of the electromagnetic shielding member 1 and the shielding characteristics.

  The end holding member 3 is a conductive member formed in an annular shape. In the present embodiment, the end holding member 3 includes a metal annular holding portion 31 and a shield shell member 30. As shown in FIG. 1, the annular holding portion 31 is a metal member that is joined in a state where the end portions 20 of each of the plurality of covered shield strands 2 are arranged in an annular shape.

  As shown in FIGS. 1 and 2, the shield shell member 30 is a conductive member having an annular cylindrical portion 301 and a fastening portion 302 connected to the cylindrical portion 301. The fastening portion 302 is a portion that is fastened to a metal housing (not shown) that houses a device to which the molded resin-attached electric wire 9 is connected. The fastening portion 302 is formed outside the tubular portion 301.

  A through hole 300 forming a passage for the main electric wire 81 is formed in the cylindrical portion 301 of the shield shell member 30. The shield shell member 30 is attached to the casing in a state where the through hole 300 of the cylindrical portion 301 and the opening of the casing overlap.

  In the example shown in FIGS. 1 and 2, a screw hole 303 through which a screw for fastening the shield shell member 30 to the housing is passed is formed in the fastening portion 302. The shield shell member 30 is, for example, an aluminum member or a metal member such as iron whose surface is plated.

  In the present embodiment, the resin mold portion 7 of the electric wire 9 with mold resin is fitted into the through hole 300 of the cylindrical portion 301 in the shield shell member 30. As a result, the terminal-attached electric wire 80 penetrating the resin mold portion 7 enters the through-hole 300 of the cylindrical portion 301.

  As shown in FIG. 2, the annular holding portion 31 in the present embodiment has a structure in which a bendable metal strip-like member is connected to the outer peripheral surface of the cylindrical portion 301 in the shield shell member 30. The end portions of the core wire 21 in each of the plurality of shielded shield wires 2 are joined side by side to the metal strip member (annular holding portion 31).

  In the present embodiment, the end portions 20 of the respective covering shield strands 2 are joined to the metal strip member (annular holding portion 31) in a state where the plurality of covering shield strands 2 are arranged in parallel without crossing each other. . Then, the belt-like member to which the end portion 20 of the sheathed shield wire 2 is joined is bent in an annular shape along the outer peripheral surface of the cylindrical portion 301 of the shield shell member 30 and connected to the cylindrical portion 301.

  For example, the band-shaped member (annular holding portion 31) is formed in an annular shape by connecting both ends in the longitudinal direction thereof by caulking. It is also conceivable that both ends of the belt-like member (annular holding portion 31) are connected by being folded. It is also conceivable that the belt-shaped member (annular holding portion 31) is connected to the cylindrical portion 301 by caulking.

  In the example shown in FIG. 1, the annular holding portion 31 is connected to the tubular portion 301 in a state where the metal welded portion 4 is sandwiched between the annular welded portion 4 and the tubular portion 301. Thereby, since the end portion 20 of the sheathed shield wire 2 is sandwiched between the cylindrical portion 301 and the annular holding portion 31, the sheathed shield wire 2 is not easily detached from the annular holding portion 31.

  Both ends of each of the plurality of covered shield strands 2 are held in an annular shape by the two end holding members 3. Therefore, the plurality of sheathed shield wires 2 are held by the two end holding members 3 in a state of being arranged in a cylindrical shape surrounding the main wire 81.

  The metal welded portion 4 includes a metal material and is welded to a portion where the end of each of the covered shield strands 2 in the annular holding portion 31 is located. Thereby, the metal welding part 4 has joined the edge part of the core wire 21 in each of the some covering shield strand 2 to the cyclic | annular holding part 31. As shown in FIG. Therefore, the core wire 21 in each of the plurality of covered shield strands 2 is electrically connected to the annular holding portion 31 through at least the metal welded portion 4.

  FIG. 4 is a diagram illustrating a covering shield strand joining step in the middle of manufacturing the electromagnetic shielding member 1. The metal welded portion 4 is formed by solidification of the molten metal 40 supplied to the end portion 20 with the insulating coating 22 formed on each of the sheathed shield wires 2.

  The temperature of the molten metal 40, that is, the melting point of the metal weld 4 is higher than the melting point of the insulating coating 22 of the sheathed shield wire 2. Therefore, in the covering shield strand joining step, the insulating coating 22 at the end 20 of each covering shield strand 2 comes into contact with the high temperature molten metal 40 and elutes from the surface of the end of the core wire 21. As a result, the molten metal 40 is solidified in a state where it contacts both the end of the core wire 21 and the annular holding portion 31 in the sheathed shield wire 2.

  The metal welded portion 4 formed by solidification of the molten metal 40 is welded to a portion where the end portion 20 of each of the sheathed shield wire 2 in the metal annular holding portion 31 is located, and the end portion of each of the sheathed shield wire 2 Twenty core wires 21 are joined to the annular holding portion 31.

  The metal composing the metal welded portion 4 may be, for example, an alloy mainly composed of tin and lead, an alloy mainly composed of silver and copper, or an alloy mainly composed of copper and zinc.

  FIG. 4 shows an example in which the molten metal 40 fluidized by heating the metal member is supplied to the end of the sheathed shield wire 2. However, other examples of the method for supplying the molten metal 40 are also conceivable. For example, after placing a solid metal member in a portion where the end 20 of each of the sheathed shield wires 2 in the annular holding portion 31 (band member) is positioned, the molten metal 40 is heated by heating until the metal member is fluidized. It is also conceivable to supply

<Effect>
In the electromagnetic shielding member 1, the plurality of covered shield strands 2 are insulated wires that function as shield strands. Further, the metal welded portion 4 is formed by solidification of the molten metal 40 supplied to the end portion 20 with the insulating coating 22 formed on each of the sheathed shield strands 2. In this case, the insulation coating at the end of each of the coated shield strands is eluted from the surface of the core wire by touching the hot molten metal.

  Therefore, if the electromagnetic shielding member 1 is employed, the end portions 20 of each of the sheathed shield wires 2 can be easily held in an annular shape without requiring a process of previously stripping the insulating coating 22 of the end portions 20 of the respective sheathed shield wires 2. The end portion 20 of the sheathed shield wire 2 can be easily grounded to the housing.

  If the electromagnetic shield member 1 is employed, the end of the core wire 21 in each of the sheathed shield wires 2 is joined to the flat belt-like member (annular holding portion 31) before being connected to the shield shell member 30. can do. Therefore, the covering shield strand 2 can be easily joined to the annular holding portion 31 (strip member).

<First application example>
Next, an electromagnetic shielding member 1A according to a first application example applicable to the wire harness 10 and a wire harness 10A according to a first application example including the same will be described with reference to FIGS. FIG. 5 is a plan view of the shield wire group 2X provided in the electromagnetic shield member 1A, and FIG. 6 is a perspective view of the wire harness 10A. 5 and 6, the same components as those shown in FIGS. 1 to 4 are given the same reference numerals. Hereinafter, differences from the wire harness 10 in the first application example will be described.

  The shield strand group 2X has a configuration in which a shield strand connecting portion 5 is added to the plurality of covered shield strands 2 shown in FIGS. In the following description, among the three or more coated shield strands 2, a strip-shaped member (annular holding portion 31) that is joined closest to the first end is referred to as a first coated shield strand 201, and the strip-shaped member ( What is joined to the second end closest to the second end in the annular holding portion 31) is referred to as a second sheath shield wire 202, and all the remaining portions are referred to as a third sheath shield wire 203.

  The first covered shield strand 201 and the second covered shield strand 202 are the two covered shield strands 2 that are adjacent to each other in a state of being annularly arranged by being held by the annular holding portion 31.

  The shield strand connecting portion 5 is a flexible member. The shield wire connecting portion 5 has an intermediate portion between the two end portions 20 of each of the three or more sheathed shield wires 2 other than between the first sheathed shield wire 201 and the second sheathed shield wire 202. They are linked at intervals.

  That is, the shield wire connecting portion 5 connects the intermediate portions of all the third covered shield wire 203 in series with a space therebetween. Further, the shield wire connecting portion 5 connects the intermediate portion of the first covered shield wire 201 and the intermediate portion of at least one third covered shield wire 203 with an interval therebetween. Further, the shield wire connecting portion 5 connects the intermediate portion of the second covered shield wire 202 and the intermediate portion of at least one third covered shield wire 203 with a space therebetween.

  In the example shown in FIG. 5, the shield wire connecting portion 5 connects the adjacent shield shield wires 2 with an interval therebetween, but an example in which this is not the case is also conceivable. For example, it is conceivable that the shield wire connecting portion 5 connects two adjacent shield shield wires 2 together.

  The shield strand connecting portion 5 is a flexible synthetic resin member, for example. It is conceivable that the synthetic resin constituting the shield wire connecting portion 5 is, for example, an elastomer having elasticity, polyvinyl chloride, polyethylene, or the like.

  The shield strand connecting portion 5 is formed on the plurality of covered shield strands 2 before being joined to the annular holding portion 31. That is, at a point before the end of the shield wire group 2X is joined to the annular holding portion 31, the plurality of covered shield strands 2 are integrated in a comb shape by the flexible shield strand connecting portion 5.

  Both end portions of the interdigital shield wire group 2X are joined to the two annular holding portions 31 (band-like members) by the metal welding portions 4, respectively. Further, as shown in FIG. 6, each of the two annular holding portions 31 is bent into an annular shape. In the example shown in FIG. 6, both end portions of the belt-like member (annular holding portion 31) form a connecting portion 310 that is connected by being folded. Thereby, the electromagnetic shielding member 1A is formed. In FIG. 6, drawing of the shield shell member 30 is omitted.

  Even when the electromagnetic shield member 1A including the shield wire group 2X is bent and attached along the path of the main electric wire 81, the distance between the shield shield wire 2 is maintained substantially constant, and a plurality of sheaths The shield strands 2 are distributed substantially uniformly without being partially biased in the circumferential direction. As a result, it can be prevented that a large gap is partially formed between the covered shield strands 2 and the shielding performance is deteriorated.

  Further, since the plurality of sheathed shield wires 2 are integrated in a comb shape, handling of the plurality of sheathed shield strands 2 when joining each sheathed shield strand 2 to the annular holding portion 31 is facilitated.

<Second application example>
Next, an electromagnetic shielding member 1B according to a second application example applicable to the wire harness 10 will be described with reference to FIG. FIG. 7 is a perspective view of the wire harness 10B. 7, the same components as those shown in FIGS. 1 to 6 are given the same reference numerals. Note that the drawing of the shield shell member 30 is also omitted in FIG.

  The electromagnetic shielding member 1B is an application example of the electromagnetic shielding member 1A. Hereinafter, differences from the wire harness 10A in the electromagnetic shield member 1B will be described.

  The electromagnetic shielding member 1B includes a shield wire binding member 6 in addition to the configuration of the electromagnetic shielding member 1A. The shield wire binding member 6 is a member that gently binds the intermediate portion of the first sheathed shield wire 201 and the intermediate portion of the second sheathed shield wire 202 at an interval.

  For example, the shield strand binding member 6 is a string-like member that is gently wound spirally around the intermediate portion of the first covered shield strand 201 and the intermediate portion of the second covered shield strand 202. In the example shown in FIG. 7, the end portion 60 of the string-like shield wire binding member 6 is fixed to the annular holding portion 31 with an adhesive or the like.

  Moreover, if the electromagnetic shielding member B is employ | adopted, the shield strand binding member 6 will be connected to the first sheathed shield wire 201 and the adjacent second sheathed shield strand 202 that are not coupled by the shield strand connecting portion 5. It is possible to prevent a large gap from being formed. Accordingly, it is possible to more reliably prevent the shielding performance from deteriorating.

<Third application example>
Next, an electromagnetic shielding member 1C according to a third application example applicable to the wire harness 10 will be described with reference to FIG. FIG. 8 is a perspective view of the main part of the electromagnetic shielding member 1C. In FIG. 8, the same components as those shown in FIGS. 1 to 7 are given the same reference numerals. Hereinafter, the difference between the electromagnetic shielding member 1C and the electromagnetic shielding member 1 will be described.

  In the electromagnetic shield member 1 </ b> C, the metal shield shell member 30 itself having the cylindrical portion 301 and the fastening portion 302 connected to the cylindrical portion 301 constitutes the end holding member 3.

  That is, in the electromagnetic shield member 1 </ b> C, the end portions 20 of the respective covered shield strands 2 are directly joined to the cylindrical portion 301 of the shield shell member 30 by the metal welded portion 4. In the example shown in FIG. 8, the end 20 of each of the sheathed shield wires 2 is joined to the outer peripheral surface of the cylindrical portion 301.

  If the electromagnetic shield member 1C is employed, a member interposed between the sheathed shield wire 2 and the cylindrical portion 301 of the shield shell member 30 can be omitted, so that the number of components of the electromagnetic shield member 1C is reduced. be able to.

<Fourth application example>
Next, an electromagnetic shielding member 1D according to a fourth application example applicable to the wire harness 10 will be described with reference to FIG. FIG. 9 is a perspective view of the main part of the electromagnetic shielding member 1D. 9, the same components as those shown in FIGS. 1 to 8 are given the same reference numerals.

  The electromagnetic shielding member 1D is an application example of the electromagnetic shielding member 1C. Hereinafter, a difference between the electromagnetic shielding member 1D and the electromagnetic shielding member 1 will be described.

  In the electromagnetic shield member 1 </ b> D, the plurality of covered shield strands 2 have a structure knitted in a cylindrical shape in the same manner as a general braided wire.

  Also in the electromagnetic shield member 1 </ b> D, the end portions 20 of the respective covered shield strands 2 are directly joined to the cylindrical portion 301 of the shield shell member 30 by the metal welded portion 4. In the example shown in FIG. 9, the end 20 of each of the sheathed shield wires 2 is joined to the outer peripheral surface of the cylindrical portion 301.

  Even when the electromagnetic shield member 1 </ b> D is employed, a member interposed between the sheathed shield wire 2 and the cylindrical portion 301 of the shield shell member 30 can be omitted. Moreover, the shield strand connecting part 5 and the shield strand binding member 6 can be omitted. Therefore, the number of components of the electromagnetic shield member 1D can be reduced.

<Application examples of shield wire group>
Next, a shield wire group 2Y according to an application example applicable to the wire harness 10 will be described with reference to FIG. FIG. 10 is a plan view of the shield strand group 2Y. 10, the same components as those shown in FIGS. 1 to 9 are given the same reference numerals. Hereinafter, the points of the shield strand group 2Y different from the shield strand group 2X will be described.

  Similarly to the shield strand group 2X, the shield strand group 2Y has a structure in which a plurality of covered shield strands 2 are connected in a comb shape by the shield strand connecting portions 5A.

  The shield wire connecting portion 5 </ b> A is a flexible string-like member and performs the same function as the shield wire connecting portion 5. The shield wire connecting portion 5A has an intermediate portion between the two end portions 20 of each of the three or more sheathed shield wires 2 other than between the first sheathed shield wire 201 and the second sheathed shield wire 202. They are linked at intervals.

  In the example shown in FIG. 10, the shield wire connecting portion 5 </ b> A has a plurality of tie portions 52 tied to the middle portion of each of the covered shield strands 2 and a string-like base portion 51 that connects the tie portions 52. . It is also conceivable that a shield wire group 2Y having a structure in which a plurality of covered shield wire 2 are connected by such a shield wire connecting portion 5A is employed instead of the shield wire group 2X.

<Other application examples>
In the electromagnetic shielding members 1, 1 </ b> A, 1 </ b> B, 1 </ b> C, and 1 </ b> D, it is considered that the shield wire joined to the annular holding portion 31 by the metal weld portion 4 includes a plurality of covered shield wires 2 and a plurality of bare wires. It is done. In this case, each bare wire employed as the shield wire is a wire of the same type of metal.

  In addition, the electromagnetic shielding member and the wire harness according to the present invention can be freely combined with the above-described embodiment and each application example within the scope of the invention described in each claim, or the embodiment and each application example. It is also possible to configure by appropriately modifying or omitting part of the above.

1, 1A, 1B, 1C, 1D Electromagnetic shield member 10, 10A, 10B Wire harness 2 Coated shield wire 20 End of coated shield wire 201 First coated shield wire 202 Second coated shield wire 203 Third coated Shield wire 21 Core wire of sheathed shield wire 22 Insulation coating of sheathed shield wire 2X, 2Y Shield wire group 3 End holding member 30 Shield shell member 300 Through hole of shield shell member 301 Cylindrical portion 302 Fastening portion 303 Screw hole 31 annular holding part 310 connecting part of annular holding part 4 metal welded part 40 molten metal 5,5A shield strand connecting part 51 string-like base part 52 tied part 6 shield strand binding member 60 end part of shield strand connecting member 7 resin Mold part 80 Electric wire with terminal 81 Main electric wire 811 Core wire of main electric wire 812 Insulation coating of main electric wire 82 Terminal 9 Wire with molded resin

Claims (4)

A plurality of sheathed shield wires each having a conductive core wire and an insulating coating formed on the outer peripheral surface of the core wire;
An end holding member that is formed in an annular shape and has an annular holding portion made of metal that is joined in a state in which ends of each of the plurality of covered shield strands are arranged in an annular shape;
A metal material is welded to a portion where each end of each of the covered shield strands in the annular holding portion is located, whereby the end of the core wire in each of the plurality of covered shield strands is used as the annular holding portion. a metal deposition portion are joined, the Bei example,
The end holding member is
A conductive shield shell member having an annular tubular portion and a fastening portion connected to the tubular portion and fastened to another member;
A structure in which a bending-deformable metal belt-shaped member in which ends of the core wires of each of the plurality of covered shield strands arranged in parallel are joined to each other is connected to the outer peripheral surface of the cylindrical portion of the shield shell member Including the annular holding part,
The said annular holding | maintenance part is an electromagnetic shielding member connected to the said cylinder part in the state which pinches | interposes the said metal welding part between the said cylinder parts . The three or more sheathed shield wires arranged in parallel in a plane are held in the annular holding portion to be arranged in an annular shape,
Of the three or more sheathed shield wires arranged in parallel in the plane, two sheathed shield wires positioned at one end and the other end along the parallel direction are respectively designated as a first sheathed shield wire and a second sheathed shield strand. If it is a line,
Intermediate part to each other, said the the first covering shield wire second coating shield wires adjacent to each other in a state arranged in the annular by being held by the annular holding portion between both end portions in the prior SL braiding strands each further comprising an electromagnetic shielding member according to claim 1 and flexible shield wire connecting portion for connecting with intervals except in between. The electromagnetic shield according to claim 2 , further comprising a shield wire binding member that gently binds the intermediate portion of the first sheathed shield wire and the intermediate portion of the second sheathed shield wire with a space therebetween. Element. A main electric wire subject to electromagnetic shielding;
An electromagnetic shielding member formed around the main wire, and
The electromagnetic shielding member is
A plurality of sheathed shield wires each having a conductive core wire and an insulating coating formed on the outer peripheral surface of the core wire;
A pair of conductive end portions having a metal annular holding portion formed in an annular shape surrounding a part of the main electric wire and joined in a state in which both end portions of each of the plurality of sheathed shield wires are arranged in an annular shape A holding member;
A metal material is welded to a portion where each end of each of the covered shield strands in the annular holding portion is located, whereby the end of the core wire in each of the plurality of covered shield strands is used as the annular holding portion. a metal deposition portion are joined, the Bei example,
The end holding member is
A conductive shield shell member having an annular tubular portion and a fastening portion connected to the tubular portion and fastened to another member;
A structure in which a bending-deformable metal belt-shaped member in which ends of the core wires of each of the plurality of covered shield strands arranged in parallel are joined to each other is connected to the outer peripheral surface of the cylindrical portion of the shield shell member Including the annular holding part,
The said annular holding part is a wire harness connected to the said cylinder part in the state which pinches | interposes the said metal welding part between the said cylinder parts .

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