WO2023058459A1 - ワイヤハーネス - Google Patents
ワイヤハーネス Download PDFInfo
- Publication number
- WO2023058459A1 WO2023058459A1 PCT/JP2022/035222 JP2022035222W WO2023058459A1 WO 2023058459 A1 WO2023058459 A1 WO 2023058459A1 JP 2022035222 W JP2022035222 W JP 2022035222W WO 2023058459 A1 WO2023058459 A1 WO 2023058459A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- metal pipe
- wire harness
- wire
- shielded
- outer periphery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/013—Sealing means for cable inlets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/0045—Cable-harnesses
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6591—Specific features or arrangements of connection of shield to conductive members
- H01R13/6592—Specific features or arrangements of connection of shield to conductive members the conductive member being a shielded cable
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
- H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/14—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for joining or terminating cables
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/10—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Definitions
- the present disclosure relates to wire harnesses.
- a wire harness a plurality of shielded wires having a core wire and an electromagnetic shielding member covering the outer periphery of the core wire are provided, and the core wires are connected to each other and the electromagnetic shielding members are connected to each other (for example, patent Reference 1).
- This wire harness includes an insulating member that covers the outer periphery of a connecting portion where a plurality of core wires are connected to each other, and an electromagnetic shield pipe that covers the outer periphery of the insulating member.
- the electromagnetic shielding member is arranged on the outer peripheral surface of the electromagnetic shielding pipe, and is crimped and fixed to the electromagnetic shielding pipe while being covered with the crimping member from the outer peripheral side.
- the wire harness includes a resin pipe covering the outer periphery of the crimping member, and a water stop plug interposed between the inner peripheral surface of the end of the resin pipe and the outer peripheral surface of the shielded wire. The member is prevented from getting wet.
- An object of the present invention is to provide a wire harness capable of reducing the number of parts.
- the wire harness of the present disclosure includes a plurality of shielded wires having a core wire and an electromagnetic shielding member covering the outer circumference of the core wire, a connection portion where the plurality of core wires are connected, and an insulating member covering the outer circumference of the connection portion.
- an underlay member covering the outer circumference of the insulating member; a metal pipe covering the outer circumference of the underlay member; and an intervening stopcock, wherein the metal pipe protrudes radially inward from an intermediate portion in the length direction of the metal pipe and sandwiches the electromagnetic shield member with the underlay member.
- the number of parts can be reduced.
- FIG. 1 is a partial schematic cross-sectional view of a wire harness according to one embodiment.
- FIG. 2 is a perspective view of an underlayment member in one embodiment;
- FIG. 3 is a schematic diagram for explaining the manufacturing process of the wire harness in one embodiment.
- FIG. 4 is a schematic diagram for explaining the manufacturing process of the wire harness in one embodiment.
- FIG. 5 is a schematic diagram for explaining the manufacturing process of the wire harness in one embodiment.
- FIG. 6 is a partial schematic cross-sectional view of a wire harness in another example.
- FIG. 7 is a partial schematic cross-sectional view of a wire harness in another example.
- the wire harness of the present disclosure includes: [1] A plurality of shielded wires having a core wire and an electromagnetic shield member covering the outer periphery of the core wire, a connection portion where the plurality of core wires are connected to each other, an insulating member covering the outer periphery of the connection portion, and the insulation an underlay member covering the outer periphery of the member; a metal pipe covering the outer periphery of the underlay member; a faucet, wherein the metal pipe protrudes radially inward from an intermediate portion in the length direction of the metal pipe and is connected to the electromagnetic shield member while sandwiching the electromagnetic shield member with the underlay member. It has a shield connection.
- connection portion is covered with the metal pipe connected to the electromagnetic shielding member, so the radiation of electromagnetic waves from the vicinity of the connection portion is suppressed.
- connecting portion and the electromagnetic shielding member are housed inside the metal pipe and the stop cock, waterproofness is ensured.
- the metal pipe serves both as a member for ensuring the waterproofness of the connecting portion and the electromagnetic shielding member and as a member for connecting the electromagnetic shielding members. Therefore, the number of parts can be reduced.
- the underlying member can be arranged from the outside of the insulating member.
- the underlaying member can be arranged from the outside of the insulating member, and there is no need to pass the shielding wire in advance, unlike a pipe formed in a cylindrical shape, for example, so that it is easy to assemble. Become.
- the underlay member has flexibility and is formed in a C shape. According to this configuration, the insulating member can be passed through the C-shaped opening while the underlaying member is bent, so that the underlaying member can be easily arranged from the outside of the insulating member.
- the shield connecting portion constitutes a positioning portion that restricts movement of the stop cock toward the intermediate portion in the length direction of the metal pipe.
- the shield connecting portion also serves as the positioning portion. Therefore, since a separate member for restricting the movement of the stop cock toward the intermediate portion in the length direction of the metal pipe is not required, the number of parts can be reduced.
- the stop cock is preferably a rubber plug. According to this configuration, the inner peripheral surface of the metal pipe and the outer peripheral surface of the shielded wire can be brought into good contact with each other, and the waterproof property can be satisfactorily secured.
- the metal pipe has a retaining portion that protrudes radially inward from the water stop plug to prevent the water stop plug from coming off from the metal pipe in the length direction of the metal pipe. It is preferred to have
- the stopcock is stably prevented from coming off from the metal pipe by the retaining portion of the metal pipe. Further, since a retainer for preventing the stop cock from coming off from the metal pipe is not required, the number of parts can be reduced.
- the wire harness 11 includes one first shielded wire 12 as a shielded wire and two second shielded wires 13 and 14 as shielded wires.
- the first shielded wire 12 and the second shielded wires 13, 14 have core wires 12a to 14a as core wires and inner insulating coatings 12b to 14b covering the outer circumferences of the core wires 12a to 14a.
- the first shield wire 12 and the second shield wires 13 and 14 are composed of electromagnetic shield members 12c to 14c covering the outer circumferences of the inner insulating coatings 12b to 14b, and outer insulating coverings 12d to 12d covering the outer circumferences of the electromagnetic shielding members 12c to 14c. 14d.
- the electromagnetic shield members 12c to 14c suppress radiation of electromagnetic waves from the core wires 12a to 14a.
- the electromagnetic shield members 12c to 14c of the present embodiment are, for example, braided wires in which conductive strands of aluminum alloy or the like are woven into a tubular shape.
- the core wires 12a to 14a are provided so as to be exposed to the outside.
- the electromagnetic shield members 12c to 14c are provided so as to be exposed to the outside.
- the outer insulating coatings 12d to 14d are first stripped, then the electromagnetic shield members 12c to 14c are folded back, and then the inner insulating coatings 12b to 14b are peeled. peeled off. As a result, the electromagnetic shield members 12c-14c are exposed, and the core wires 12a-14a are exposed.
- the electromagnetic shield members 12c to 14c exposed to the outside can be folded back, put together, or deformed, and are schematically shown in each figure.
- the wire harness 11 also includes a crimp terminal 15 and an insulating member 16 that constitute a part of the connecting portion.
- the crimp terminal 15 is made of, for example, a conductive metal plate.
- the crimp terminal 15 is provided at a portion where the core wires 12a to 14a exposed from the electromagnetic shield members 12c to 14c of the first shielded wire 12 and the second shielded wires 13, 14 are concentrated.
- the crimp terminal 15 surrounds the core wires 12a to 14a together and is crimped to connect the core wires 12a to 14a.
- the wire harness 11 is for electrically connecting the battery and two electric devices, for example.
- the first shielded wire 12 and the second shielded wires 13 and 14 are configured such that the first shielded wire 12 extends in one direction (leftward in FIG. 1) around the crimp terminal 15, and the first shielded wire 12 extends in the other direction (leftward in FIG. 1).
- Two second shield wires 13 and 14 are provided so as to extend in the middle and right directions).
- the outer circumference of the crimp terminal 15 is covered with an insulating member 16 .
- the insulating member 16 is configured to be arranged from the outside of the crimp terminal 15 .
- the insulating member 16 of this embodiment is an insulating tape and is wound around the crimp terminal 15 .
- the insulating member 16 is provided so as to cover all the core wires 12a to 14a exposed from the inner insulating coatings 12b to 14b.
- the insulating member 16 is an insulating tape having flexibility, it is not necessarily in a completely cylindrical state when wound around the crimp terminal 15. However, in FIG. showing.
- the wire harness 11 also includes an underlay member 17 , a metal pipe 18 , stop cocks 19 and 20 , and retainers 21 and 22 .
- the underlay member 17 covers the outer circumference of the insulating member 16 .
- the underlying member 17 is made of metal.
- the underlying member 17 is configured to be able to be arranged from the outside of the insulating member 16 .
- the underlying member 17 is formed in a C shape.
- the underlay member 17 is formed in a shape obtained by cutting out a portion of the cylindrical shape in the circumferential direction.
- the underlying member 17 has flexibility.
- the underlay member 17 can be bent so that the C-shaped opening 17a widens, and the crimp terminal 15 and the insulating member 16 can be passed through the C-shaped opening 17a. Therefore, the underlay member 17 can be arranged at a position covering the outer circumference of the insulating member 16 from the outside of the insulating member 16 .
- the underlay member 17 is bent so that the C-shaped opening 17a widens, and the insulating member 16 extends inward from the C-shaped opening 17a. By passing it through, it is disposed at a position covering the outer circumference of the insulating member 16 .
- the electromagnetic shield members 12c to 14c exposed to the outside are gathered and folded back to separate from each other.
- electromagnetic shield members 12c to 14c of the first shield wire 12 and the second shield wires 13 and 14 are arranged on the outer peripheral surface of the underlying member 17.
- the electromagnetic shield members 12c to 14c of the present embodiment are braided wires as described above, and a portion of the wire is arranged on a portion of the outer peripheral surface of the underlay member 17 in the circumferential direction. That is, after the underlay member 17 is attached to the insulating member 16 in a folded state as shown in FIGS. It is again deformed to abut.
- the metal pipe 18 covers the outer circumference of the underlying member 17 .
- the metal pipe 18 is made of conductive metal such as aluminum alloy.
- the length of the metal pipe 18 along the extending direction of the wire harness 11 is set longer than the length of the underlying member 17 .
- the metal pipe 18 protrudes radially inward from an intermediate portion in the length direction of the metal pipe 18 and is connected to the electromagnetic shield members 12c to 14c while sandwiching the electromagnetic shield members 12c to 14c with the underlying member 17. It has a portion 18a.
- the metal pipe 18 has a cylindrical shape with a constant diameter in a material state before the shield connection portion 18a is formed.
- the metal pipe 18 is already in a material state, in which the first shielded wire 12 is passed so as to surround the outer circumference of the first shielded wire 12. are placed in Then, as shown in FIG. 5, the metal pipe 18 is relatively moved in the extending direction of the wire harness 11 while the electromagnetic shield members 12c to 14c are arranged so as to contact the outer peripheral surface of the underlying member 17. It is arranged at a position covering the electromagnetic shield members 12c to 14c.
- the metal pipe 18 is crimped radially inwardly at its longitudinal intermediate portion to form a shield connection portion 18a. sandwich the electromagnetic shield members 12c to 14c.
- the stopcocks 19 and 20 are rubber plugs made of rubber.
- the stopcocks 19 and 20 are provided inside both longitudinal end portions of the metal pipe 18 .
- one stop cock 19 is located between the inner peripheral surface at one end in the length direction of the metal pipe 18 and the outer peripheral surface of the first shield wire 12, specifically the outer peripheral surface of the outer insulating coating 12d. intervened in
- the other stop cock 20 consists of the inner peripheral surface of the other end in the length direction of the metal pipe 18 and the outer peripheral surfaces of the second shield wires 13 and 14, specifically the outer insulating coatings 13d and 14d. interposed between the surfaces.
- shutoff valves 19 are arranged so as to already surround the outer periphery of the first shielded wire 12. are placed in a state where the crimp terminal 15 is crimped onto the respective core wires 12a to 14a, the other shutoff valve 20 has the second shielded wires 13, 14 already passed therethrough so as to enclose the outer peripheries of the second shielded wires 13, 14. placed in the same position. As shown in FIG. 3, when the crimp terminal 15 is crimped to each of the core wires 12a to 14a, one of the shutoff valves 19 is arranged so as to already surround the outer periphery of the first shielded wire 12. are placed in a state where the When the crimp terminal 15 is crimped onto the respective core wires 12a to 14a, the other shutoff valve 20 has the second shielded wires 13, 14 already passed therethrough so as to enclose the outer peripheries of the second shielded wires 13, 14. placed in the same position. As shown in FIG.
- the stopcocks 19 and 20 are relatively moved in the extending direction of the wire harness 11 in a state in which the metal pipe 18 is formed with the shield connection portion 18a, thereby placed inside the The stopcocks 19 and 20 are restricted from moving in the longitudinal direction of the metal pipe 18 by the shield connecting portion 18a. That is, in the present embodiment, the shield connection portion 18a constitutes a positioning portion that restricts movement of the stopcocks 19 and 20 in the direction of the intermediate portion in the length direction of the metal pipe 18. As shown in FIG.
- the retainers 21 and 22 prevent the stopcocks 19 and 20 from coming off the metal pipe 18 .
- both end portions of the metal pipe 18 of this embodiment have a plurality of locking holes 18b penetrating in the radial direction in the circumferential direction.
- the retainers 21 and 22 are composed of disk-shaped body portions 21a and 22a that contact the surfaces of the stopcocks 19 and 20 positioned in the direction of coming out of the metal pipe 18, and the diameter of the metal pipe 18 extending from the outer edges of the body portions 21a and 22a. It has locking claws 21b and 22b that fit into the locking hole 18b from the direction outside.
- one retainer 21 already surrounds the outer periphery of the first shielded wire 12 when the crimp terminal 15 is crimped onto the respective core wires 12a to 14a. placed in a closed state.
- the other retainer 22 is in a state in which the second shielded wires 13, 14 are passed so as to already surround the outer circumferences of the second shielded wires 13, 14 when the crimp terminal 15 is crimped onto the respective core wires 12a to 14a. are placed in Then, as shown in FIG. 1, the retainers 21 and 22 are moved relative to each other in the extending direction of the wire harness 11 while the stopcocks 19 and 20 are arranged at the end portions of the metal pipe 18 so that the metal pipe 18 is moved. are locked at both ends of the
- the first shielded wire 12 and the second shielded wires 13, 14 have electromagnetic shielding members 12c-14c covering the outer circumferences of the core wires 12a-14a via inner insulating coatings 12b-14b. Therefore, radiation of electromagnetic waves from the first shielded wire 12 and the second shielded wires 13 and 14 is suppressed.
- the connecting portion including the crimp terminal 15 to which the core wires 12a to 14a are connected is covered with the shield connecting portion 18a of the metal pipe 18. As shown in FIG. Therefore, the radiation of electromagnetic waves from the periphery of the connecting portion is suppressed.
- the effects of the above embodiment will be described below.
- the metal pipe 18 serves both as a member for ensuring waterproofness of the crimp terminal 15 and the electromagnetic shield members 12c to 14c and as a member for connecting the electromagnetic shield members 12c to 14c. That is, in the prior art, a dedicated caulking member was used only for connecting the electromagnetic shield members 12c to 14c, but in the present embodiment, no caulking member is required. Therefore, the number of parts can be reduced.
- the underlay member 17 can be arranged from the outside of the insulating member 16. For example, unlike a pipe formed in a cylindrical shape, it is not necessary to pass the first shield wire 12 in advance. become good.
- the underlay member 17 is flexible and formed in a C shape. Therefore, the insulating member 16 can be passed through the C-shaped opening 17a while the underlaying member 17 is bent, so that the underlaying member 17 can be easily arranged from the outside of the insulating member 16.
- the shield connection portion 18a also serves as a positioning portion that restricts movement of the stopcocks 19 and 20 in the direction of the intermediate portion in the length direction of the metal pipe 18. Therefore, a separate member for restricting movement of the stop cocks 19 and 20 in the direction of the intermediate portion in the length direction of the metal pipe 18 is not required, so the number of parts can be reduced.
- the stopcocks 19 and 20 are rubber plugs. Therefore, it can be brought into good contact with the inner peripheral surface of the metal pipe 18 and the outer peripheral surfaces of the outer insulating coatings 12d to 14d, so that the waterproof property can be satisfactorily secured.
- Retainers 21 and 22 are provided to prevent the stopcocks 19 and 20 from coming off the metal pipe 18 . Therefore, the stopcocks 19 and 20 are stably prevented from coming off from the metal pipe 18 .
- This embodiment can be implemented with the following modifications. This embodiment and the following modified examples can be implemented in combination with each other within a technically consistent range.
- the retainers 21 and 22 have the locking claws 21b and 22b that fit into the locking holes 18b from the radially outer side of the metal pipe 18. It may be locked against the pipe 18 .
- the retainers 23 and 24 include main body portions 23a and 24a and locking claws that extend from the outer edges of the main body portions 23a and 24a and fit into the locking hole 18b from the radially inner side of the metal pipe 18. As shown in FIG. 23b and 24b may be provided.
- the wire harness 11 includes the retainers 21 and 22.
- the retainers 21 and 22 may be omitted as long as the stopcocks 19 and 20 can be prevented from coming off the metal pipe 18. .
- the metal pipe 18 protrudes radially inward from the water stopcocks 19 and 20 in the length direction of the metal pipe 18 toward the end portion of the water stopcocks 19 and 20 .
- a configuration having a retaining portion 18c that prevents the connector 18 from coming off may be employed.
- the retainer portion 18c is formed by crimping the stopcocks 19 and 20 inside the metal pipe 18, or by swaging. Processing department.
- the underlaying member 17 is formed in a C shape and configured to be arranged from the outside of the insulating member 16, but is not limited to this. may be
- the shield connection portion 18a also serves as a positioning portion for restricting the movement of the stopcocks 19 and 20 in the direction of the intermediate portion in the length direction of the metal pipe 18, but is limited to this.
- the positioning portion may be configured separately from the shield connection portion 18a.
- the positioning portion for restricting movement of the stopcocks 19 and 20 may be formed on the metal pipe 18 separately from the shield connecting portion 18a, or may be provided as a separate member.
- the stopcocks 19 and 20 are made of rubber, but are not limited to this, and may be made of other materials.
- an adhesive may be used to ensure waterproofness.
- the insulating member 16 is an insulating tape wound around the crimp terminal 15.
- the insulating member 16 is not limited to this, and may be changed to another insulating portion.
- the insulating member 16 of the above-described embodiment may be changed to a cylindrical shrinkable tube.
- the shrinkable tube formed in a cylindrical shape is not configured to be arranged from the outside of the crimp terminal 15, it is necessary, for example, to pass the first shielded wire 12 through the shrinkable tube in advance.
- the wire harness 11 includes one first shielded wire 12 and two second shielded wires 13 and 14, but may be configured to include four or more shielded wires.
- connection portion to which the core wires 12a to 14a are connected has the crimp terminal 15, but the connection portion is not limited to this. may be connected. In other words, the connecting portion may be configured to have a welded portion instead of the crimp terminal 15 .
- the electromagnetic shield members 12c to 14c are connected to each other via the shield connection portion 18a by connecting the shield connection portion 18a to the electromagnetic shield members 12c to 14c. you can
- the metal pipe 18 and the water stopcocks 19 and 20 constitute a waterproof structure for ensuring the waterproofness of the crimp terminal 15 and the electromagnetic shield members 12c to 14c. you can
- the surfaces of the stopcocks 19 and 20 facing the connecting portion 15 may abut against the longitudinal end surfaces of the shield connecting portion 18a. As a result, movement of the stopcocks 19 and 20 toward the intermediate portion in the lengthwise direction of the metal pipe 18 is restricted. As shown in FIG. 7 , the surfaces of the stopcocks 19 and 20 opposite to the surfaces facing the connecting portion 15 may contact the end surfaces of the retainer portion 18 c facing the connecting portion 15 . This can prevent the stopcocks 19 and 20 from coming off the metal pipe 18 .
- the metal pipe 18 has a radial step between each open end of the metal pipe 18 and the shield connection portion 18a of the metal pipe 18 in the length direction of the metal pipe 18. good.
- the shield connection portion 18a of the metal pipe 18 is a small-diameter cylinder having a first diameter at an intermediate position or a first length position different from both open ends of the metal pipe 18. Sometimes referred to as a part.
- the metal pipe 18 is provided next to the shield connection portion 18a in the length direction of the metal pipe 18 with a second diameter larger than the diameter of the shield connection portion 18a (first diameter).
- each of the open ends of metal pipe 18 may be a large-diameter tubular portion of metal pipe 18 .
- the metal pipe 18 may have a retainer portion 18c, which may be each open end of the metal pipe 18, and a shield connection portion 18a, which may be a small-diameter tubular portion.
- a large-diameter tubular portion may be provided at a second length position between the retainer portion 18c and the shield connection portion 18a, and this large-diameter tubular portion holds the stopcocks 19, 20 immobile in the axial direction. You can Each radial step of the metal pipe 18 in the examples of FIGS.
- Each radial step of the metal pipe 18 may be in liquid-tight contact with the radially outermost portion of the axially inward facing surface of the corresponding stop cock 19 or 20 .
- a wire harness (11) includes: a plurality of shielded wires (12-14) having core wires (12a-14a) and electromagnetic shielding members (12c-14c) covering the outer circumferences of the core wires (12a-14a); a connecting portion (15) where the plurality of core wires (12a-14a) are connected to each other; an insulating member (16) covering the outer periphery of the connecting portion (15); an underlay member (17) covering the outer periphery of the insulating member (16); a metal pipe (18) covering the outer periphery of the underlay member (17); stop cocks (19, 20) for sealing between the inner peripheral surface of the metal pipe (18) and the outer peripheral surfaces of the shielded wires (12-14) at both ends in the length direction of the metal pipe (18); , and the tip of the electromagnetic shield member (12c-14c) is arranged to abut on the outer peripheral surface of the underlay member (17),
- the metal pipe (18) protrudes radially inward from an intermediate portion
- wire harness 12 first shielded wire (shielded wire) 12a core wire 12b inner insulation coating 12c electromagnetic shielding member 12d outer insulation coating 13 second shielded wire (shielded wire) 13a core wire 13b inner insulation coating 13c electromagnetic shielding member 13d outer insulation coating 14 second shielded wire (shielded wire) 14a core wire 14b inner insulation coating 14c electromagnetic shielding member 14d outer insulation coating 15 crimp terminal (connection) 16 insulating member 17 underlay member 17a opening 18 metal pipe 18a shield connecting portion (positioning portion) 18b Locking hole 18c Retaining portion 19 Stop cock (rubber plug) 20 stop cock (rubber plug) 21 retainer 21a main body 21b locking claw 22 retainer 22a main body 22b locking claw 23 retainer 23a main body 23b locking claw 24 retainer 24a main body 24b locking claw
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- Insulated Conductors (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Processing Of Terminals (AREA)
- Details Of Indoor Wiring (AREA)
- Cable Accessories (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
Description
本発明は、上記課題を解決するためになされたものであって、その目的は、部品点数を低減可能としたワイヤハーネスを提供することにある。
最初に本開示の実施態様を列記して説明する。
本開示のワイヤハーネスは、
[1]芯線と該芯線の外周を覆う電磁シールド部材とを有する複数のシールド電線と、複数の前記芯線同士が接続されている接続部と、前記接続部の外周を覆う絶縁部材と、前記絶縁部材の外周を覆う下敷き部材と、前記下敷き部材の外周を覆う金属パイプと、前記金属パイプの長さ方向の端部側における内周面と前記シールド電線の外周面との間に介在される止水栓と、を備え、前記金属パイプは、前記金属パイプの長さ方向の中間部に、径方向内側に突出して前記下敷き部材とで前記電磁シールド部材を挟み込みつつ該電磁シールド部材に接続されるシールド接続部を有する。
同構成によれば、下敷き部材は、絶縁部材の外側から配設可能に構成され、例えば、円筒状に形成されたパイプのように予めシールド電線を通しておくといった必要がないため、組み付け性が良好となる。
同構成によれば、下敷き部材を撓めつつ絶縁部材をC字形状の開口から内側に通すことが可能であるため、下敷き部材を絶縁部材の外側から容易に配設することができる。
同構成によれば、シールド接続部は位置決め部を兼ねている。よって、金属パイプの長さ方向の中間部方向への止水栓の移動を規制する別部材が不要となるため、部品点数を低減することができる。
同構成によれば、金属パイプの内周面及びシールド電線の外周面と良好に密着させることができ、防水性を良好に確保できる。
同構成によれば、リテーナによって止水栓の金属パイプからの抜けが安定して防止される。
本開示のワイヤハーネスの具体例を、以下に図面を参照しつつ説明する。各図面では、説明の便宜上、構成の一部を誇張又は簡略化して示す場合がある。また、各部分の寸法比率については各図面で異なる場合がある。本明細書における「平行」や「直交」や「真円」は、厳密に平行や直交や真円の場合のみでなく、本実施形態における作用効果を奏する範囲内で概ね平行や直交や真円の場合も含まれる。なお、本発明はこれらの例示に限定されるものではなく、特許請求の範囲によって示され、特許請求の範囲と均等の意味及び範囲内でのすべての変更が含まれることが意図される。
図1に示すように、ワイヤハーネス11は、シールド電線としての1本の第1シールド電線12と、シールド電線としての2本の第2シールド電線13,14とを備える。第1シールド電線12及び第2シールド電線13,14は、芯線としての芯線12a~14aと、該芯線12a~14aの外周を覆う内側絶縁被覆12b~14bとを有している。また、第1シールド電線12及び第2シールド電線13,14は、内側絶縁被覆12b~14bの外周を覆う電磁シールド部材12c~14cと、電磁シールド部材12c~14cの外周を覆う外側絶縁被覆12d~14dとを有している。
(圧着端子15の構成)
圧着端子15は、例えば導電性の金属板材からなる。圧着端子15は、第1シールド電線12及び第2シールド電線13,14においてそれぞれの電磁シールド部材12c~14cから露出されたそれぞれの芯線12a~14aが集約された部位に設けられる。圧着端子15は、芯線12a~14aをまとめて囲いつつ圧着されて芯線12a~14aを接続する。なお、ワイヤハーネス11は、例えば、バッテリと2つの電気機器とを電気的に接続するためのものである。第1シールド電線12及び第2シールド電線13,14は、圧着端子15を中心として、一方向(図1中、左方向)に1本の第1シールド電線12が延びるとともに、他方向(図1中、右方向)に2本の第2シールド電線13,14が延びるように設けられている。
圧着端子15の外周は、絶縁部材16に覆われている。絶縁部材16は、圧着端子15の外側から配設可能に構成されている。本実施形態の絶縁部材16は、絶縁テープであり、圧着端子15の外側に巻き付けられている。絶縁部材16は、内側絶縁被覆12b~14bから露出した芯線12a~14aが全て覆われるように設けられている。なお、絶縁部材16は、柔軟性を有する絶縁テープであるため、圧着端子15の外側に巻き付けた状態で、完全な円筒状態になるとは限らないが、図1等では模式的に円筒状に図示している。
(下敷き部材17の構成)
下敷き部材17は、絶縁部材16の外周を覆う。下敷き部材17は、金属製である。下敷き部材17は、絶縁部材16の外側から配設可能に構成されている。
図1に示すように、金属パイプ18は、下敷き部材17の外周を覆う。金属パイプ18は、例えば、アルミニウム合金などの導電性の金属製である。金属パイプ18は、ワイヤハーネス11の延在方向に沿った長さが下敷き部材17の長さよりも長く設定されている。金属パイプ18は、金属パイプ18の長さ方向の中間部に、径方向内側に突出して下敷き部材17とで電磁シールド部材12c~14cを挟み込みつつ該電磁シールド部材12c~14cに接続されるシールド接続部18aを有する。
止水栓19,20は、ゴム製のゴム栓である。止水栓19,20は、金属パイプ18の長さ方向の両端部の内側に設けられる。詳しくは、一方の止水栓19は、金属パイプ18の長さ方向の一端部における内周面と、第1シールド電線12の外周面であって詳しくは外側絶縁被覆12dの外周面との間に介在される。また、他方の止水栓20は、金属パイプ18の長さ方向の他端部における内周面と、第2シールド電線13,14の外周面であって詳しくは外側絶縁被覆13d,14dの外周面との間に介在される。
リテーナ21,22は、止水栓19,20の金属パイプ18からの抜けを防止する。詳しくは、本実施形態の金属パイプ18の両端部は、径方向に貫通する係止孔18bを周方向に複数有する。リテーナ21,22は、止水栓19,20の金属パイプ18から抜ける方向に位置する面と当接する円盤状の本体部21a,22aと、本体部21a,22aの外縁から延び金属パイプ18の径方向外側から係止孔18bに嵌まる係止爪21b,22bとを有する。
第1シールド電線12及び第2シールド電線13,14は、内側絶縁被覆12b~14bを介して芯線12a~14aの外周を覆う電磁シールド部材12c~14cを有する。よって、第1シールド電線12及び第2シールド電線13,14からの電磁波の放射が抑えられる。また、芯線12a~14aが接続された圧着端子15を含む接続部は、金属パイプ18のシールド接続部18aに覆われる。よって、接続部周辺からの電磁波の放射が抑えられる。
(1)接続部の一部を構成する圧着端子15は、電磁シールド部材12c~14cに接続される金属パイプ18によって覆われるため、圧着端子15周辺からの電磁波の放射が抑制される。また、圧着端子15及び電磁シールド部材12c~14cは、金属パイプ18及び止水栓19,20の内部に収容されるため、防水性が確保される。金属パイプ18は、圧着端子15及び電磁シールド部材12c~14cの防水性を確保するための部材と、電磁シールド部材12c~14c同士を接続するための部材とを兼ねている。すなわち、従来技術では電磁シールド部材12c~14c同士を接続するためだけの専用のかしめ部材が用いられていたが、本実施形態では、かしめ部材が不要となる。よって、部品点数を低減することができる。
本実施形態は、以下のように変更して実施することができる。本実施形態及び以下の変更例は、技術的に矛盾しない範囲で互いに組み合わせて実施することができる。
・上記実施形態では、下敷き部材17は、C字形状に形成され、絶縁部材16の外側から配設可能に構成されるとしたが、これに限定されず、例えば、円筒状に形成されたパイプとしてもよい。
例えば、上記実施形態の絶縁部材16は、円筒状に形成された収縮チューブに変更してもよい。なお、円筒状に形成された収縮チューブは、圧着端子15の外側から配設可能に構成されていないため、例えば、収縮チューブに予め第1シールド電線12を通しておくといった必要がある。
芯線(12a-14a)と該芯線(12a-14a)の外周を覆う電磁シールド部材(12c-14c)とを有する複数のシールド電線(12-14)と、
複数の前記芯線(12a-14a)同士が接続されている接続部(15)と、
前記接続部(15)の外周を覆う絶縁部材(16)と、
前記絶縁部材(16)の外周を覆う下敷き部材(17)と、
前記下敷き部材(17)の外周を覆う金属パイプ(18)と、
前記金属パイプ(18)の長さ方向の両端において前記金属パイプ(18)の内周面と前記シールド電線(12-14)の外周面との間を密閉する止水栓(19,20)と、を備え、
前記電磁シールド部材(12c-14c)の先端部は、前記下敷き部材(17)の外周面と当接するように配置され、
前記金属パイプ(18)は、前記金属パイプ(18)の長さ方向の中間部に、径方向内側に突出して前記下敷き部材(17)とともに前記電磁シールド部材(12c-14c)を挟み込みつつ該電磁シールド部材(12c-14c)に接続されるシールド接続部(18a)を有する。
12 第1シールド電線(シールド電線)
12a 芯線
12b 内側絶縁被覆
12c 電磁シールド部材
12d 外側絶縁被覆
13 第2シールド電線(シールド電線)
13a 芯線
13b 内側絶縁被覆
13c 電磁シールド部材
13d 外側絶縁被覆
14 第2シールド電線(シールド電線)
14a 芯線
14b 内側絶縁被覆
14c 電磁シールド部材
14d 外側絶縁被覆
15 圧着端子(接続部)
16 絶縁部材
17 下敷き部材
17a 開口
18 金属パイプ
18a シールド接続部(位置決め部)
18b 係止孔
18c 抜け止め部
19 止水栓(ゴム栓)
20 止水栓(ゴム栓)
21 リテーナ
21a 本体部
21b 係止爪
22 リテーナ
22a 本体部
22b 係止爪
23 リテーナ
23a 本体部
23b 係止爪
24 リテーナ
24a 本体部
24b 係止爪
Claims (7)
- 芯線と該芯線の外周を覆う電磁シールド部材とを有する複数のシールド電線と、
複数の前記芯線同士が接続されている接続部と、
前記接続部の外周を覆う絶縁部材と、
前記絶縁部材の外周を覆う下敷き部材と、
前記下敷き部材の外周を覆う金属パイプと、
前記金属パイプの長さ方向の端部側における内周面と前記シールド電線の外周面との間に介在される止水栓と、を備え、
前記金属パイプは、前記金属パイプの長さ方向の中間部に、径方向内側に突出して前記下敷き部材とで前記電磁シールド部材を挟み込みつつ該電磁シールド部材に接続されるシールド接続部を有するワイヤハーネス。 - 前記下敷き部材は、前記絶縁部材の外側から配設可能に構成されている請求項1に記載のワイヤハーネス。
- 前記下敷き部材は、可撓性を有し、C字形状に形成されている請求項2に記載のワイヤハーネス。
- 前記シールド接続部は、前記金属パイプの長さ方向の中間部方向への前記止水栓の移動を規制する位置決め部を構成している請求項1から請求項3のいずれか1項に記載のワイヤハーネス。
- 前記止水栓は、ゴム栓である請求項1から請求項4のいずれか1項に記載のワイヤハーネス。
- 前記止水栓の前記金属パイプからの抜けを防止するリテーナを備えた請求項1から請求項5のいずれか1項に記載のワイヤハーネス。
- 前記金属パイプは、前記金属パイプの長さ方向において前記止水栓よりも端部側に、径方向内側に突出して前記止水栓の前記金属パイプからの抜けを防止する抜け止め部を有する請求項1から請求項5のいずれか1項に記載のワイヤハーネス。
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| WO2019216227A1 (ja) * | 2018-05-08 | 2019-11-14 | 住友電装株式会社 | シールド電線の端末構造 |
| JP2019201487A (ja) * | 2018-05-16 | 2019-11-21 | 住友電装株式会社 | ワイヤハーネス |
| WO2021132031A1 (ja) * | 2019-12-26 | 2021-07-01 | 株式会社オートネットワーク技術研究所 | ワイヤハーネス |
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| WO2019216227A1 (ja) * | 2018-05-08 | 2019-11-14 | 住友電装株式会社 | シールド電線の端末構造 |
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