WO2019004207A1 - Connector for wire with shield - Google Patents

Connector for wire with shield Download PDF

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Publication number
WO2019004207A1
WO2019004207A1 PCT/JP2018/024184 JP2018024184W WO2019004207A1 WO 2019004207 A1 WO2019004207 A1 WO 2019004207A1 JP 2018024184 W JP2018024184 W JP 2018024184W WO 2019004207 A1 WO2019004207 A1 WO 2019004207A1
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WO
WIPO (PCT)
Prior art keywords
connector
shield
electric wire
wire
shielded
Prior art date
Application number
PCT/JP2018/024184
Other languages
French (fr)
Japanese (ja)
Inventor
明生 中島
鉄 廣瀬
Original Assignee
Ntn株式会社
ユニオンマシナリ株式会社
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Filing date
Publication date
Application filed by Ntn株式会社, ユニオンマシナリ株式会社 filed Critical Ntn株式会社
Publication of WO2019004207A1 publication Critical patent/WO2019004207A1/en

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    • 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
    • H01R4/20—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 using a crimping sleeve
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables

Definitions

  • the present invention relates to a connector for shielded electric wire, and more particularly, to a shielded electric wire connector for connecting a shielded electric wire corresponding to large current conduction in an electric car, a hybrid car and the like.
  • Patent Document 1 and Patent Document 2 compatible with a large current is required.
  • Electric wires and connectors used in electric cars and hybrid cars have strengths that ensure electric wires are connected, waterproofness that prevents water from infiltrating in electric wires and connection devices, and characteristics due to the use environment on the road. Vibration resistance that can withstand the vibration of the However, it is difficult to satisfy all the performances with a low cost and a simple structure in the conventional connector for shielded wire for high current.
  • a wire with a shield is often used as a noise countermeasure, but it is difficult to ensure an electrical connection between the shield and the ground circuit. The work for that is also time-consuming. In order to ensure the connection, the structure of the connector for the shielded wire has to be complicated, which causes an increase in cost.
  • the object of the present invention is to secure the wire connection strength and waterproofness in a car, and to securely connect the shield of the wire and the grounding circuit even when subjected to vibration, and manufacture with a simple structure and low cost. It is to provide a possible shielded wire connector.
  • a connector for shielded wire is a connector for connecting a shielded wire in which a core wire, an insulation coating, a shield, and an outer shell are concentrically stacked, A conductive sleeve covering an outer periphery of a shield return portion at a portion where the outer cover is peeled off at an end of the shielded electric wire, wherein the shield is folded back and overlapped on the outer periphery of the outer cover at the shield return portion.
  • conductive sleeves The inner peripheral surface is formed in a cylindrical surface shape including a front side hole, an intermediate hole, and a rear side hole that sequentially increase in diameter, and a diameter change surface on the front side intervenes between the front side hole and the middle hole.
  • a ring-shaped packing for electric wire waterproofing which is at least partially fitted in the inner annular recess of the waterproof material holder and closely in contact with the outer peripheral surface of the shielded electric wire;
  • An internal waterproofing packing interposed between the waterproof material holder and the rear surface of the connector body on which the diameter is changed;
  • a clamp holder attached to a rear end of the connector body, wherein the electric wire waterproofing packing is pressed and abutted against the waterproofing material holder so that the conductive sleeve is held by the waterproofing material holder on the front side of the connector main body Tightening holder pressed against the diameter change surface of the And
  • the diameter change surface is, for example, a step surface perpendicular to the axial direction.
  • the conductive sleeve which is in electrical communication with the shield and covers the shield folded portion of the shielded electric wire, is pressed by the waterproof material holder by the tightening of the tightening holder.
  • the conductive sleeve is pressed against the diameter changing surface of the connector body, and the connection between the shield of the shielded electric wire and the connector body is made at the pressing point.
  • the shielded electric wire and the connector main body are attached Waterproofness between is obtained.
  • the wire waterproofing packing is pushed by the tightening holder in a state where a part thereof enters the inner annular recess formed from the inner peripheral surface to the rear side of the waterproof material holder, the outer cover of the shielded electric wire It is deformed to bite in, the pressing pressure of the contact surface is strong, and excellent waterproofness is obtained.
  • the shield and the ground circuit are securely connected as described above and reliable waterproofness can be obtained, other complicated configurations for reliable connection and seal are not necessary, which is simple. It becomes a structure and can be manufactured at low cost.
  • the conductive sleeve may be compressed and deformed in its entire diameter into a diameter-reduced state to contact the outer periphery of the shield folded portion. By compressing and deforming the entire circumference into a reduced diameter state and making contact, the electrical connection between the shield and the conductive sleeve is reliably maintained.
  • the conductive sleeve is a spot-like recessed portion in which a surface on the outer peripheral side of the conductive sleeve is a recessed surface and a surface on the inner peripheral side is a projecting surface and bites into the shield turnback portion at a plurality of circumferential positions. May be included.
  • the diameter of the conductive sleeve be reduced and then bites into the shield return portion at a plurality of recessed portions in the circumferential direction. For example, after the conductive sleeve is pressed from the entire circumference of the outer circumferential surface to reduce the diameter entirely and the inner circumferential surface is brought into contact with the folded portion of the shield in a pressed state, the depressed portion is spotted Form by familiarization.
  • the fixing strength of the conductive sleeve to the wire with shield is improved, and the shield is The electrical connection between the and the conductive sleeve is more reliably maintained.
  • a conductive shield connecting spring may be interposed between the front side of the connector main body and the conductive sleeve. By interposing and tightening the shield connection spring, the electrical connection can be secured even if there is some looseness due to tightening of the tightening holder or aged deterioration.
  • the shield connection spring may be any member having conductivity and spring property, and for example, a wave washer, a chrysanthem washer, a swelling washer or the like can be used.
  • the inner circumferential surface of the inner annular recess of the waterproof material holder may be a tapered surface whose diameter is reduced on the bottom side. If the inner peripheral surface of the inner annular recess of the waterproof material holder is a tapered surface whose diameter on the bottom side is reduced, the wire waterproofing packing is elastically deformed to a reduced diameter state by being pushed in the axial direction by the connector body. Strongly contact the outer periphery of the attached wire. Therefore, waterproofness is further improved.
  • the tightening holder may have a configuration in which a male screw portion provided on the outer periphery is screwed with a female screw portion provided on the inner periphery of the connector main body. If the male screw on the outer periphery of the holder is screwed into the female screw on the inner periphery of the connector body, a strong pressing force of the conductive sleeve and each packing can be obtained with a simple configuration, and for obtaining the pressing force. The work is also easy, as it only needs to be tightened by rotation.
  • FIG. 7 is a perspective view showing a coating peeling process of steps showing from the coating peeling process of the shielded electric wire of FIG. 1 to the conductive sleeve covering process.
  • FIG. 5B is a perspective view showing a process of folding back the exposed portion of the shield, which is a process following the process of FIG. 5A.
  • FIG. 5D is a perspective view showing a conductive sleeve covering process following the process of FIG. 5B. It is a fragmentary sectional view of the waterproof material holder of the connector for electric wires with a shield of FIG.
  • a diagram (A) is a front view
  • a diagram (B) is a fracture side view.
  • the other example of the shield connection spring of the connector for shields with electric wire of FIG. 1 is shown, a diagram (A) is a front view, and a diagram (B) is a side view.
  • the other example of the shield connection spring of the connector for shields with electric wire of FIG. 1 is shown, a diagram (A) is a front view, and a diagram (B) is a side view.
  • the shielded wire connector 1 supports the end of the shielded wire 2 and grounds the shield when connecting the shielded wire 2 to a terminal of an electric device or another wire (not shown). It is a connector, for example, a high current connector used for connection between electric devices such as a battery, an inverter, and a motor in an electric car or a hybrid car.
  • the shielded wire connector 1 includes a conductive connector body 8, a conductive sleeve 9, a waterproof material holder 10, a wire waterproofing packing 11, an internal waterproofing packing 12, and a tightening holder 13.
  • the shield connecting wire connector 1 is provided with a shield connecting spring 14 and an insertion hole packing 15.
  • the shielded electric wire 2 is formed by concentrically laminating a core wire 3, an insulation coating 4, a mesh shield 5 and an outer shell 6.
  • the core wire 3 is a stranded wire, but may be a single wire.
  • the shielded electric wire 2 when connecting the shielded electric wire 2, the insulation coating 4, the shield 5 and the shell 6 are peeled off so that the core wire 3, the insulation coating 4 and the shield 5 are partially exposed.
  • the exposed portion of the shield 5 is folded back to the outer peripheral side as shown in FIG. 5B and stacked on the outer periphery of the outer shell 6 to form a shield folded portion 5a.
  • a conductive sleeve 9 (FIG. 5C) is placed on the shield turnup portion 5a of the shielded electric wire 2.
  • the conductive sleeve 9 is made of a conductive metal, such as steel, copper, aluminum, or an alloy thereof.
  • the conductive sleeve 9 placed on the shield turnback portion 5a is pressed from the entire circumference thereof to reduce the diameter of the entire surface, and the inner circumferential surface is brought into pressure contact with the shield turnback portion 5a. After that, the conductive sleeve 9 is spot-staked from the outer peripheral side, and depressions 19 are formed at a plurality of locations, for example, at regular intervals in the circumferential direction, and cut into the shield turnback portion 5a.
  • the depressed portion 19 is a plastically deformed portion in which the outer circumferential surface of the conductive sleeve 9 is a depressed surface and the inner circumferential surface is a protruding surface.
  • the conductive sleeve 9 is longer than the shield folded portion 5a, and one end thereof is aligned with the end of the shield folded portion 5a.
  • the terminal 7 is attached to the exposed portion of the core wire 3 at the end of the shielded electric wire 2.
  • the terminal 7 is a crimped terminal composed of a holed plate portion 7a and a sleeve-like barrel 7b at its base end.
  • the shielded wire 2 is passed through the barrel 7 b through the exposed portion of the core wire 3 at the end thereof, and the barrel 7 b is crimped to be coupled to the core wire 3.
  • the connector main body 8 is made of a conductive metal such as steel, copper, aluminum, or an alloy thereof, and is provided on the cylindrical portion 8a and a part of the outer periphery of the cylindrical portion 8a. And the flange 8b for The flange 8 b has a mounting hole 16.
  • a portion on the front side (terminal side) of the flange 8b of the cylindrical portion 8a is an insertion portion which is inserted into a mounting hole (not shown) of the device, and the circumferential groove 18 formed on the outer periphery is made of rubber O
  • An insertion hole packing 15 made of a ring or the like is fitted.
  • the front side hole 8aa, the intermediate hole 8ab, and the rear side hole 8ac which are successively larger in diameter, are interposed between the front and rear diameter changing surfaces 8ad and 8ae. It is in the form of a two-step stepped cylindrical surface.
  • the diameter change surfaces 8ad and 8ae are step surfaces in this embodiment, but may be tapered surfaces.
  • An inner peripheral surface of a rear side portion of the rear side hole 8ac is formed in a female screw portion 17.
  • the exposed portion of the insulating coating 4 of the shielded electric wire 2 is inserted through the front side hole 8aa.
  • the conductive sleeve 9 is inserted into the intermediate hole 8ab, and the waterproof material holder 10 is inserted into the rear hole 8ac.
  • the inner diameters of the front side hole 8aa and the rear side hole 8ac are respectively set to the smallest hole diameters that the insulation coating 4 of the shielded electric wire 2, the conductive sleeve 9, and the waterproof material holder 10 can be inserted without difficulty.
  • the waterproof material holder 10 is inserted into the intermediate hole portion 8 ab of the connector main body 8 so that the front side surface abuts against the conductive sleeve 9 and the rear side surface abuts against the tightening holder 13.
  • the waterproof material holder 10 holds the electric wire waterproofing packing 11 and the internal waterproofing packing 12 on the rear side (opposite side of the terminal) and the front side (terminal side), and the clamping force of the clamping holder 13 on the conductive sleeve 9 It is a member to be transmitted, and is formed in a ring shape from a hard material made of metal or synthetic resin such as steel.
  • the waterproof material holder 10 is provided with an inner annular recess 21 extending from the inner peripheral surface to the rear side, and an outer annular recess 22 extending from the outer peripheral surface to the front end surface.
  • the inner circumferential surface 21 a of the inner annular recess 21 is a tapered surface whose diameter is reduced at the bottom side (the front side).
  • the outer annular recess 22 is rectangular in cross section.
  • the electric wire waterproofing packing 11 and the internal waterproofing packing 12 of FIG. 1 are disposed such that the inner annular recess 21 and the outer annular recess 22 are partially or entirely inserted, respectively.
  • the electric wire waterproofing packing 11 is a member for sealing between the outer peripheral surface of the shielded electric wire 2 and the waterproof material holder 10, and is made of rubber or synthetic resin and is a ring-shaped member.
  • the cross-sectional shape of the electric wire waterproofing packing 11 is a surface having a high contact pressure and a close contact between the outer peripheral surface of the shielded electric wire 2 and the waterproof material holder 10 by being pushed into the inner annular recess 21 of the waterproof material holder 10 by the tightening holder 13
  • the shape is such that contact is obtained. In this embodiment, as shown in FIG. 7A and FIG.
  • the deformation portion relief concave portion 11 a is formed on the front side portion at a plurality of circumferential positions of the outer peripheral surface of the wire waterproofing packing 11.
  • the deformed portion relief concave portion 11 a is a concave portion which is easily deformed by escaping the elastically deformed portion of the electric wire waterproofing packing 11.
  • the cross-sectional shape of the wire waterproofing packing 11 may adopt various shapes such as a rectangular shape, a truncated cone shape whose outer peripheral surface is tapered, and a circular shape as shown in FIGS. 7B to 7D, for example. .
  • the wire waterproofing packing 11 may have a hollow shape as shown in these figures or a solid shape.
  • the internal waterproofing packing 12 of FIG. 1 is a ring-shaped member made of rubber or synthetic resin, may be an O-ring, or may be a member having a rectangular cross section. Further, the internal waterproofing packing 12 may be hollow or solid.
  • the shield connecting spring 14 is a member interposed to enhance the contact between the end face of the conductive sleeve 9 and the connector main body 8, and is a member made of metal or the like having conductivity and spring.
  • the shield connecting spring 14 has, for example, a wave washer shape shown in the diagrams (A) and (B) of FIG. 8, a chrysanthem washer (also called tooth thrust washer) shown in the diagrams (A) and (B) of FIG. It may be in the form of a split spring washer shown in the diagrams (A) and (B) of FIG.
  • the tightening holder 13 of FIG. 1 is formed of a hard material such as metal such as steel or synthetic resin, and the outer peripheral surface of the front portion is a male screw portion 23.
  • the tightening holder 13 is screwed into the female screw portion 17 of the connector main body 8 to press the electric wire waterproofing packing 11 and abut against the waterproof material holder 10, and the conductive sleeve 9 is held by the waterproof material holder 10. It is in a state of being pressed against the diameter change surface 8ad on the front side.
  • the connection work by the shielded wire connector 1 having the above configuration will be described.
  • the clamp holder 13, the wire waterproofing packing 11, the waterproof material holder 10, the internal waterproofing packing 12, the conductive sleeve 9, and the shield connecting spring 14 are sequentially inserted into the shielded electric wire 2.
  • the insulation coating 4, the shield 5 and the outer skin 6 of the shielded electric wire 2 are peeled off, the shield 5 is folded back and the conductive sleeve 9 is fixed to the outer periphery as described above.
  • the shielded electric wire 2 is passed through the connector body 8 (the state of FIG. 3), and the tightening holder 13 is tightened as shown in FIG. Thereafter, the terminal 7 is attached.
  • the conductive sleeve 9 which is in electrical communication with the shield 5, is fitted on the inner circumference of the connector body 8 so as to cover the shielded folded portion 5 a of the shielded electric wire 2.
  • the conductive sleeve 9 is pushed forward by the waterproof material holder 10 by the tightening of the tightening holder 10 and pressed against the step-like diameter changing surface 8 ad of the connector main body 8.
  • the shield 5 of the shielded electric wire 2 and the connector body 8 are electrically connected, and the grounding circuit is connected.
  • the conductive sleeve 9 is pressed from the entire circumference of the outer circumferential surface thereof to reduce the entire diameter, and a plurality of depressions 19 are further formed by spot caulking to form a shielded electric wire 2 Bite into the folded back portion 5a. Therefore, the fixing strength of the conductive sleeve 9 to the shielded electric wire 2 is improved, and the electrical contact between the shield 5 and the conductive sleeve 9 is more reliably maintained.
  • the inner peripheral surface of the inner annular recess 21 is a tapered surface whose diameter on the bottom side is reduced, so that the wire waterproofing packing 11 is elastically deformed to a reduced diameter state by being pushed in the axial direction by the tightening holder 13. Therefore, the outer periphery of the shielded electric wire 2 makes a strong contact, and the waterproofness is further improved.
  • the internal waterproofing packing 12 is disposed in the outer annular recess 22 formed between the outer peripheral surface of the waterproof material holder 10 and the front side surface also between the waterproof material holder 10 and the connector main body 8, so for internal waterproofing The packing 12 is strongly pressed against the inner surface of the connector body 8, and a reliable waterproofness is obtained.
  • connection between the shield 5 of the shielded electric wire 2 and the ground circuit can be made reliable, and a reliable waterproofness can be obtained, so that other complicated configurations for securing the connection and the seal are unnecessary. It has a simple structure and can be manufactured at low cost. Further, both securing of the conductivity of the conductive sleeve 9 and securing of the waterproofness in the connector main body 8 can be simultaneously performed by the fastening operation of the fastening holder 13, and the workability is also excellent.
  • the male screw portion 23 on the outer periphery of the clamp holder 13 is used to attach the clamp holder 13 to the connector main body 8.
  • the electric wire waterproofing packing 11 and the waterproof material holder 10 are electrically conductive. Any other configuration may be employed as long as the sleeve 9 can be pressed.
  • the front portion of the tightening holder 13 has a double cylindrical shape, and the female screw portion provided on the inner periphery of the outer cylindrical portion is screwed into the male screw portion provided on the outer periphery of the connector body 8
  • the waterproof material holder 10 may be pressed at this time.
  • the clamp holder 13 may be attached to the connector body 8 by caulking the connector body 8 or the clamp holder 13.
  • SYMBOLS 1 Connector for electric wire with shield 2 ... Wire with shield 3 ... Core wire 4 ... Insulating coating 5 ... Shield 5a ... Shield return part 6 ... Skin 8 ... Connector main body 9 ... Conductive sleeve 10 ... Waterproof material holder 11 ... Packing for electric wire waterproofing 12: Internal waterproofing packing 13: Clamping holder 21: Inner annular recess

Abstract

Provided is a connector for a wire with a shield, with which wire connection strength and waterproofness in a vehicle can be secured and a connection between a wire shield and a grounding circuit can be reliably achieved even if subjected to vibration, and which can be manufactured with a simple structure at low cost. A shield (5) is folded back at the end of a shield-equipped wire (2), and at the outer periphery thereof, a conductive sleeve (9) is attached by crimping. The shield-equipped wire (2) is inserted into a connector body (8), and a fastening holder (13) is used to fasten a waterproof ring holder (10) within the connector body (8) together with a wire waterproofing packing (11) and an internal waterproofing packing (12). This fastening presses the conductive sleeve (9) to a step-like shape changing surface (8ad) within the connector body (8). A shield connection spring (14) is interposed at this pressing location.

Description

シールド付き電線用コネクタShielded Wire Connector 関連出願Related application
　本出願は、２０１７年６月２６日出願の特願２０１７－１２４１８１の優先権を主張するものであり、その全体を参照により本願の一部をなすものとして引用する。 This application claims priority to Japanese Patent Application No. 2017-124181 filed on Jun. 26, 2017, which is incorporated by reference in its entirety as part of the present application.
　この発明は、シールド付き電線用のコネクタに関し、詳細には、電気自動車やハイブリッド自動車などにおける大電流通電に対応したシールド付き電線を接続するシールド付き電線用コネクタに関する。 The present invention relates to a connector for shielded electric wire, and more particularly, to a shielded electric wire connector for connecting a shielded electric wire corresponding to large current conduction in an electric car, a hybrid car and the like.
　電気自動車やハイブリッド自動車においては、バッテリー、インバータ、モーター等の電気機器間に大電流を通電する。また、その通電には、ノイズ対策としてシールド付き電線が用いられることが多い。そのため、大電流に対応したシールド付き電線用コネクタ（特許文献１および特許文献２）が必要とされる。 In electric vehicles and hybrid vehicles, a large current flows between electric devices such as batteries, inverters, and motors. In addition, a shielded electric wire is often used as the noise countermeasure for the energization. Therefore, a shielded wire connector (Patent Document 1 and Patent Document 2) compatible with a large current is required.
特開２０１３－１９１４８９号公報JP, 2013-191489, A 特開２０１４－９６２７５号公報JP, 2014-96275, A
　電気自動車やハイブリッド自動車において使用される電線やコネクタには、道路上という使用環境の特質により、確実に電線を接続させる強度、電線内や接続機器内への水の浸入を阻止する防水性、繰り返しの振動に耐え得る耐振性などが求められている。しかし、従来の大電流対応のシールド付き電線用コネクタにおいては、低コストかつシンプルな構造で全ての性能を満足させることは難しい。 Electric wires and connectors used in electric cars and hybrid cars have strengths that ensure electric wires are connected, waterproofness that prevents water from infiltrating in electric wires and connection devices, and characteristics due to the use environment on the road. Vibration resistance that can withstand the vibration of the However, it is difficult to satisfy all the performances with a low cost and a simple structure in the conventional connector for shielded wire for high current.
　特に、前記のように電気自動車やハイブリッド自動車においては、ノイズ対策としてシールド付きの電線を用いることが多いが、シールドと接地回路との電気的接続を確実に行うのは難しい。その為の作業も手間のかかるものである。接続を確実にするには、シールド付き電線用のコネクタの構造を複雑化せざるを得ず、これによりコストアップの要因ともなっている。 In particular, as described above, in an electric car or a hybrid car, a wire with a shield is often used as a noise countermeasure, but it is difficult to ensure an electrical connection between the shield and the ground circuit. The work for that is also time-consuming. In order to ensure the connection, the structure of the connector for the shielded wire has to be complicated, which causes an increase in cost.
　この発明の目的は、車載における電線接続強度および防水性を確保し、振動がかかっても電線のシールドと接地回路との接続を確実に行うことが可能となり、シンプルな構造でかつ低コストで製作可能なシールド付き電線用コネクタを提供することである。 The object of the present invention is to secure the wire connection strength and waterproofness in a car, and to securely connect the shield of the wire and the grounding circuit even when subjected to vibration, and manufacture with a simple structure and low cost. It is to provide a possible shielded wire connector.
　この発明のシールド付き電線用コネクタは、芯線、絶縁被覆、シールド、および外皮が同心に積層されたシールド付き電線を接続するコネクタであって、
　前記シールド付き電線の端部における前記外皮が剥ぎ取られた箇所のシールド折り返し部分の外周に被さる導電性スリーブであって、前記シールド折り返し部分では、前記シールドが折り返されて前記外皮の外周に重ねられている、導電性スリーブと、
　内周面が、順次大径となる前側孔部、中間孔部、および後側孔部からなる円筒面状とされ、前記前側孔部と前記中間孔部の間に前側の径変化面が介在し、かつ、前記中間孔部と前記後側孔部の間に後側の径変化面が介在するコネクタ本体であって、前記前側孔部に前記シールド付き電線の前記端部における前記被覆が露出した部分を挿入状態とし、かつ、前記中間孔部に前記導電性スリーブをそれぞれ挿入状態とする導電性のコネクタ本体と、
　前記導電性スリーブに対する突き当て状態で、前記後側孔部内で前記シールド付き電線の外周に嵌まる防水材ホルダであって、内周面から前記後側面に渡る内側環状凹部を有するリング状の防水材ホルダと、
　この防水材ホルダの前記内側環状凹部に少なくとも一部が嵌まり前記シールド付き電線の外周面に密接するリング状の電線防水用パッキングと、
　前記防水材ホルダと前記コネクタ本体の前記後側の径変化面との間に介在する内部防水用パッキングと、
　前記コネクタ本体の後端部に取付けられた締め付けホルダであって、前記電線防水用パッキングを押し付けると共に前記防水材ホルダに突き当てられてこの防水材ホルダにより前記導電性スリーブを前記コネクタ本体の前記前側の径変化面に押し付け状態とする締め付けホルダ、
　とを備える。 A connector for shielded wire according to the present invention is a connector for connecting a shielded wire in which a core wire, an insulation coating, a shield, and an outer shell are concentrically stacked,
A conductive sleeve covering an outer periphery of a shield return portion at a portion where the outer cover is peeled off at an end of the shielded electric wire, wherein the shield is folded back and overlapped on the outer periphery of the outer cover at the shield return portion. And conductive sleeves,
The inner peripheral surface is formed in a cylindrical surface shape including a front side hole, an intermediate hole, and a rear side hole that sequentially increase in diameter, and a diameter change surface on the front side intervenes between the front side hole and the middle hole. And a connector body in which a rear diameter-changing surface intervenes between the intermediate hole and the rear hole, and the coating at the end of the shielded electric wire is exposed in the front hole. A conductive connector body in which the inserted portion is in an inserted state and the conductive sleeve is inserted in the intermediate hole;
A waterproof material holder which fits on the outer periphery of the shielded electric wire in the rear side hole portion in a butting state with respect to the conductive sleeve, and is a ring-shaped waterproofing member having an inner annular recess extending from the inner peripheral surface to the rear side surface. Material holder,
A ring-shaped packing for electric wire waterproofing, which is at least partially fitted in the inner annular recess of the waterproof material holder and closely in contact with the outer peripheral surface of the shielded electric wire;
An internal waterproofing packing interposed between the waterproof material holder and the rear surface of the connector body on which the diameter is changed;
A clamp holder attached to a rear end of the connector body, wherein the electric wire waterproofing packing is pressed and abutted against the waterproofing material holder so that the conductive sleeve is held by the waterproofing material holder on the front side of the connector main body Tightening holder pressed against the diameter change surface of the
And
　前記径変化面は、例えば軸方向に垂直な段差面とされる。 The diameter change surface is, for example, a step surface perpendicular to the axial direction.
　この構成によると、シールド付き電線のシールド折り返し部分に被さってシールドと導通状態となった導電性スリーブが、締め付けホルダの締め付けにより防水材ホルダで押し付けられる。これにより導電性スリーブがコネクタ本体の径変化面に押し付けられ、その押し付け箇所で、シールド付き電線のシールドとコネクタ本体との接地回路の接続が行われる。このように軸方向に押し付け状態で接触させるため、車載における電線接続強度が確保され、振動がかかっても電線のシールドと接地回路との接続を確実に維持することが可能となる。 According to this configuration, the conductive sleeve, which is in electrical communication with the shield and covers the shield folded portion of the shielded electric wire, is pressed by the waterproof material holder by the tightening of the tightening holder. As a result, the conductive sleeve is pressed against the diameter changing surface of the connector body, and the connection between the shield of the shielded electric wire and the connector body is made at the pressing point. As described above, since the contact in the axial direction is made in contact, the wire connection strength in the vehicle is secured, and the connection between the shield of the wire and the ground circuit can be reliably maintained even if vibration is applied.
　また、防水材ホルダと締め付けホルダの間に電線防水用パッキングを挟み、コネクタ本体と防水材ホルダの間に内部防水用パッキングを挟み込んだ状態で締め付けホルダを取付けることにより、シールド付き電線とコネクタ本体との間の防水性が得られる。この場合に、電線防水用パッキングは、防水材ホルダの内周面から後側面に渡って形成された内側環状凹部に一部が入った状態で締め付けホルダに押されるため、シールド付き電線の外皮に食い込むように変形し、接触面の押し付け圧が強くて、優れた防水性が得られる。 In addition, by inserting the electric waterproofing packing between the waterproofing material holder and the tightening holder and inserting the internal waterproofing packing between the connector main body and the waterproofing material holder, the shielded electric wire and the connector main body are attached Waterproofness between is obtained. In this case, since the wire waterproofing packing is pushed by the tightening holder in a state where a part thereof enters the inner annular recess formed from the inner peripheral surface to the rear side of the waterproof material holder, the outer cover of the shielded electric wire It is deformed to bite in, the pressing pressure of the contact surface is strong, and excellent waterproofness is obtained.
　さらに、上記のようにシールドと接地回路との接続が確実になされ、また確実な防水性が得られるため、この他に接続やシールの確実化のための煩雑な構成が不要であり、シンプルな構造となって低コストで製作可能である。 Furthermore, since the shield and the ground circuit are securely connected as described above and reliable waterproofness can be obtained, other complicated configurations for reliable connection and seal are not necessary, which is simple. It becomes a structure and can be manufactured at low cost.
　前記導電性スリーブは、全周が縮径状態に圧縮変形して前記シールド折り返し部分の外周に接触してもよい。全周が縮径状態に圧縮変形して接触することにより、シールドと導電性スリーブとの電気的な接続が確実に保たれる。 The conductive sleeve may be compressed and deformed in its entire diameter into a diameter-reduced state to contact the outer periphery of the shield folded portion. By compressing and deforming the entire circumference into a reduced diameter state and making contact, the electrical connection between the shield and the conductive sleeve is reliably maintained.
前記導電性スリーブは、円周方向の複数箇所それぞれに、前記導電性スリーブの外周側の面が陥没面となり内周側の面が突出面となって前記シールド折り返し部分に食い込むスポット状の陥没部を有してもよい。 The conductive sleeve is a spot-like recessed portion in which a surface on the outer peripheral side of the conductive sleeve is a recessed surface and a surface on the inner peripheral side is a projecting surface and bites into the shield turnback portion at a plurality of circumferential positions. May be included.
　導電性スリーブの円周方向の複数箇所に陥没部を設けてシールド折り返し部分に食い込ませた場合、導電性スリーブのシールド付き電線に対する固定強度が向上する。 When recessed portions are provided at a plurality of circumferential positions of the conductive sleeve and cut into the shield turn-back portion, the fixing strength of the conductive sleeve to the shielded electric wire is improved.
　この場合に、導電性スリーブを縮径させた上で、さらに円周方向の複数箇所の陥没部でシールド折り返し部分に食い込ませることが好ましい。例えば、前記導電性スリーブは、その外周面の全周から面的にプレスして全面的に縮径させ、内周面をシールド折り返し部分に押圧状態に接触させた後に、前記陥没部をスポット的なかしめにより形成する。このように、導電性スリーブを縮径させた上で、さらに円周方向の複数箇所の陥没部でシールド折り返し部分に食い込ませた場合、導電性スリーブのシールド付き電線に対する固定強度が向上し、シールドと導電性スリーブとの電気的な接続がより一層確実に保たれる。 In this case, it is preferable that the diameter of the conductive sleeve be reduced and then bites into the shield return portion at a plurality of recessed portions in the circumferential direction. For example, after the conductive sleeve is pressed from the entire circumference of the outer circumferential surface to reduce the diameter entirely and the inner circumferential surface is brought into contact with the folded portion of the shield in a pressed state, the depressed portion is spotted Form by familiarization. As described above, when the diameter of the conductive sleeve is reduced and further the recessed portion in the circumferential direction bites into the folded portion of the shield, the fixing strength of the conductive sleeve to the wire with shield is improved, and the shield is The electrical connection between the and the conductive sleeve is more reliably maintained.
　前記コネクタ本体の前記前側の径変化面と前記導電性スリーブとの間に、導電性のシールド接続用ばねが介在してもよい。シールド接続用ばねを介在させて締め込むことにより、締め付けホルダの締め込みでのがたつきや、経年劣化での緩みが多少あった場合でも、電気的な接続が確保できる。前記シールド接続用ばねは、導電性とばね性を持つ部材であればよく、例えば波座金や菊座金、スフリングワッシャ等を用いることができる。 A conductive shield connecting spring may be interposed between the front side of the connector main body and the conductive sleeve. By interposing and tightening the shield connection spring, the electrical connection can be secured even if there is some looseness due to tightening of the tightening holder or aged deterioration. The shield connection spring may be any member having conductivity and spring property, and for example, a wave washer, a chrysanthem washer, a swelling washer or the like can be used.
　前記防水材ホルダの前記内側環状凹部の内周面は、底側が縮径するテーパ状面であってもよい。防水材ホルダの内側環状凹部の内周面が、底側が縮径するテーパ状面であると、電線防水用パッキングがコネクタ本体で軸方向に押されることで、縮径状態に弾性変形し、シールド付き電線の外周に強く接触する。そのため、防水性がより一層向上する。 The inner circumferential surface of the inner annular recess of the waterproof material holder may be a tapered surface whose diameter is reduced on the bottom side. If the inner peripheral surface of the inner annular recess of the waterproof material holder is a tapered surface whose diameter on the bottom side is reduced, the wire waterproofing packing is elastically deformed to a reduced diameter state by being pushed in the axial direction by the connector body. Strongly contact the outer periphery of the attached wire. Therefore, waterproofness is further improved.
　前記締め付けホルダは、外周に設けられた雄ねじ部が、前記コネクタ本体の内周に設けられた雌ねじ部に螺合する構成であってもよい。コネクタ本体の内周の雌ねじ部に締め付けホルダの外周の雄ねじ部が螺合する構成であると、簡素な構成で導電性スリーブおよび各パッキングの強い押し付け力が得られ、また押し付け力を得るための作業も回転により締め付けるだけでよくて、簡単である。 The tightening holder may have a configuration in which a male screw portion provided on the outer periphery is screwed with a female screw portion provided on the inner periphery of the connector main body. If the male screw on the outer periphery of the holder is screwed into the female screw on the inner periphery of the connector body, a strong pressing force of the conductive sleeve and each packing can be obtained with a simple configuration, and for obtaining the pressing force. The work is also easy, as it only needs to be tightened by rotation.
　請求の範囲および／または明細書および／または図面に開示された少なくとも２つの構成のどのような組合せも、本発明に含まれる。特に、請求の範囲の各請求項の２つ以上のどのような組合せも、本発明に含まれる。 Any combination of the at least two configurations disclosed in the claims and / or the description and / or the drawings is included in the present invention. In particular, any combination of two or more of the claims is included in the present invention.
　この発明は、添付の図面を参考にした以下の好適な実施形態の説明から、より明瞭に理解されるであろう。しかしながら、実施形態および図面は単なる図示および説明のためのものであり、この発明の範囲を定めるために利用されるべきものではない。この発明の範囲は添付の請求の範囲によって定まる。添付図面において、複数の図面における同一の符号は、同一または相当する部分を示す。
この発明の一実施形態に係るシールド付き電線用コネクタの断面図である。 図１のシールド付き電線に導電性スリーブを被せた状態を示す破断正面図である。 図１のシールド付き電線用コネクタの締め付け前の状態を示す断面図である。 図１のシールド付き電線用コネクタの分解斜視図である。 図１のシールド付き電線の被覆剥ぎ取り過程から導電性スリーブ被せ過程までを示す工程のうち、被覆剥ぎ過程を示す斜視図である。 図５Ａの過程に続く過程であって、シールドの露出部分を折り返す過程を示す斜視図である。 図５Ｂの過程に続く過程であって、導電性スリーブ被せ過程を示す斜視図である。 図１のシールド付き電線用コネクタの防水材ホルダの部分断面図である。 図１のシールド付き電線用コネクタの電線防水用パッキングの各種の一例を示す部分断面図である。 図１のシールド付き電線用コネクタの電線防水用パッキングの各種の別の例を示す部分断面図である。 図１のシールド付き電線用コネクタの電線防水用パッキングの各種のさらに別の例を示す部分断面図である。 図１のシールド付き電線用コネクタの電線防水用パッキングの各種のさらに別の例を示す部分断面図である。 図１のシールド付き電線用コネクタのシールド接続用ばねの一例を示し、ダイアグラム（Ａ）は正面図で、ダイアグラム（Ｂ）は破断側面図である。 図１のシールド付き電線用コネクタのシールド接続用ばねの他の例を示し、ダイアグラム（Ａ）は正面図で、ダイアグラム（Ｂ）は側面図である。 図１のシールド付き電線用コネクタのシールド接続用ばねのさらに他の例を示し、ダイアグラム（Ａ）は正面図で、ダイアグラム（Ｂ）は側面図である。 The invention will be more clearly understood from the following description of the preferred embodiments with reference to the accompanying drawings. However, the embodiments and the drawings are for the purpose of illustration and description only and are not to be taken as limiting the scope of the present invention. The scope of the invention is defined by the appended claims. In the accompanying drawings, the same reference numerals in multiple drawings indicate the same or corresponding parts.
It is a sectional view of a connector for electric wires with a shield concerning one embodiment of this invention. It is a broken front view which shows the state which covered the conductive sleeve on the electric wire with a shield of FIG. It is sectional drawing which shows the state before clamping of the connector for electric wires with a shield of FIG. It is a disassembled perspective view of the connector for electric wires with a shield of FIG. FIG. 7 is a perspective view showing a coating peeling process of steps showing from the coating peeling process of the shielded electric wire of FIG. 1 to the conductive sleeve covering process. FIG. 5B is a perspective view showing a process of folding back the exposed portion of the shield, which is a process following the process of FIG. 5A. FIG. 5D is a perspective view showing a conductive sleeve covering process following the process of FIG. 5B. It is a fragmentary sectional view of the waterproof material holder of the connector for electric wires with a shield of FIG. It is a fragmentary sectional view which shows various examples of the packing for electric wire waterproofing of the connector for electric wires with a shield of FIG. It is a fragmentary sectional view which shows various other examples of the packing for electric wire waterproofing of the connector for electric wires with a shield of FIG. It is a fragmentary sectional view which shows the various further another example of the packing for electric wire waterproofing of the connector for electric wires with a shield of FIG. It is a fragmentary sectional view which shows the various further another example of the packing for electric wire waterproofing of the connector for electric wires with a shield of FIG. An example of a shield connection spring of the connector for shields with electric wire of FIG. 1 is shown, a diagram (A) is a front view, and a diagram (B) is a fracture side view. The other example of the shield connection spring of the connector for shields with electric wire of FIG. 1 is shown, a diagram (A) is a front view, and a diagram (B) is a side view. The other example of the shield connection spring of the connector for shields with electric wire of FIG. 1 is shown, a diagram (A) is a front view, and a diagram (B) is a side view.
　この発明の一実施形態を図面と共に説明する。このシールド付き電線用コネクタ１は、シールド付き電線２を電気機器の端子や他の電線（いずれも図示せず）と接続するにつき、シールド付き電線２の端部を支持すると共に、シールドを接地させるコネクタであり、例えば電気自動車やハイブリッド自動車におけるバッテリー、インバータ、およびモーター等の電気機器間の接続に用いられる大電流用コネクタとされる。 An embodiment of the present invention will be described with reference to the drawings. The shielded wire connector 1 supports the end of the shielded wire 2 and grounds the shield when connecting the shielded wire 2 to a terminal of an electric device or another wire (not shown). It is a connector, for example, a high current connector used for connection between electric devices such as a battery, an inverter, and a motor in an electric car or a hybrid car.
　このシールド付き電線用コネクタ１は、導電性のコネクタ本体８、導電性スリーブ９、防水材ホルダ１０、電線防水用パッキング１１、内部防水用パッキング１２、および締め付けホルダ１３を備える。この他に、シールド付き電線用コネクタ１には、シールド接続用ばね１４が設けられ、また差込孔用パッキング１５が設けられている。 The shielded wire connector 1 includes a conductive connector body 8, a conductive sleeve 9, a waterproof material holder 10, a wire waterproofing packing 11, an internal waterproofing packing 12, and a tightening holder 13. In addition to this, the shield connecting wire connector 1 is provided with a shield connecting spring 14 and an insertion hole packing 15.
　シールド付き電線２は、図５Ａに示すように、芯線３、絶縁被覆４、網組みのシールド５、および外皮６が同心に積層されたものである。芯線３は撚り線からなるが、単線であってもよい。シールド付き電線２は、接続するときに図５Ａに示すように、芯線３、絶縁被覆４、およびシールド５が一部ずつ露出するように、絶縁被覆４、シールド５、および外皮６を剥ぎ取る。シールド５の露出部分は、図５Ｂに示すように外周側に折り返して外皮６の外周に重ね、シールド折り返し部分５ａとする。 As shown in FIG. 5A, the shielded electric wire 2 is formed by concentrically laminating a core wire 3, an insulation coating 4, a mesh shield 5 and an outer shell 6. The core wire 3 is a stranded wire, but may be a single wire. As shown in FIG. 5A, when connecting the shielded electric wire 2, the insulation coating 4, the shield 5 and the shell 6 are peeled off so that the core wire 3, the insulation coating 4 and the shield 5 are partially exposed. The exposed portion of the shield 5 is folded back to the outer peripheral side as shown in FIG. 5B and stacked on the outer periphery of the outer shell 6 to form a shield folded portion 5a.
　シールド付き電線２のシールド折り返し部分５ａには、導電性スリーブ９（図５Ｃ）を被せる。導電性スリーブ９は、導電性を有する金属、例えば鋼、銅、アルミニウム、またはこれらの合金製である。シールド折り返し部分５ａに被せた導電性スリーブ９は、その全周から面的にプレスして全面的に縮径させ、内周面をシールド折り返し部分５ａに押圧状態に接触させる。この後、導電性スリーブ９を外周側からスポット的にかしめて、円周方向の、例えば等間隔おきの複数箇所に陥没部１９を形成してシールド折り返し部分５ａに食い込ませる。陥没部１９は、導電性スリーブ９の外周側の面が陥没面となり内周側の面が突出面となる塑性変形部分である。導電性スリーブ９は、シールド折り返し部分５ａよりも長くし、一端はシールド折り返し部分５ａの端部の位置に揃える。 A conductive sleeve 9 (FIG. 5C) is placed on the shield turnup portion 5a of the shielded electric wire 2. The conductive sleeve 9 is made of a conductive metal, such as steel, copper, aluminum, or an alloy thereof. The conductive sleeve 9 placed on the shield turnback portion 5a is pressed from the entire circumference thereof to reduce the diameter of the entire surface, and the inner circumferential surface is brought into pressure contact with the shield turnback portion 5a. After that, the conductive sleeve 9 is spot-staked from the outer peripheral side, and depressions 19 are formed at a plurality of locations, for example, at regular intervals in the circumferential direction, and cut into the shield turnback portion 5a. The depressed portion 19 is a plastically deformed portion in which the outer circumferential surface of the conductive sleeve 9 is a depressed surface and the inner circumferential surface is a protruding surface. The conductive sleeve 9 is longer than the shield folded portion 5a, and one end thereof is aligned with the end of the shield folded portion 5a.
　図１に示すように、シールド付き電線２の端部における芯線３を露出させた箇所に端子７が取付けられる。端子７は、孔付きの板部７ａとその基端のスリーブ状のバレル７ｂとでなる圧着端子である。シールド付き電線２は、その端部の芯線３を露出させた部分をバレル７ｂに通し、バレル７ｂをかしめて芯線３に結合する。 As shown in FIG. 1, the terminal 7 is attached to the exposed portion of the core wire 3 at the end of the shielded electric wire 2. The terminal 7 is a crimped terminal composed of a holed plate portion 7a and a sleeve-like barrel 7b at its base end. The shielded wire 2 is passed through the barrel 7 b through the exposed portion of the core wire 3 at the end thereof, and the barrel 7 b is crimped to be coupled to the core wire 3.
　コネクタ本体８は、導電性を有する金属、例えば鋼、銅、アルミニウム、またはこれらの合金製であり、円筒状部８ａと、この円筒状部８ａの前寄りの外周の一部に設けられた取付用のフランジ８ｂとを有する。フランジ８ｂは取付孔１６を有している。 The connector main body 8 is made of a conductive metal such as steel, copper, aluminum, or an alloy thereof, and is provided on the cylindrical portion 8a and a part of the outer periphery of the cylindrical portion 8a. And the flange 8b for The flange 8 b has a mounting hole 16.
　円筒状部８ａのフランジ８ｂよりも前側（端子側）の部分は、機器の取付孔（図示せず）に差し込む差込部であり、外周に形成された円周溝１８に、ゴム製のＯリング等からなる差込孔用パッキング１５が嵌め込まれる。 A portion on the front side (terminal side) of the flange 8b of the cylindrical portion 8a is an insertion portion which is inserted into a mounting hole (not shown) of the device, and the circumferential groove 18 formed on the outer periphery is made of rubber O An insertion hole packing 15 made of a ring or the like is fitted.
　コネクタ本体８の円筒状部８ａの内周面は、順次大径となる前側孔部８ａａ、中間孔部８ａｂ、および後側孔部８ａｃが、前側および後側の径変化面８ａｄ，８ａｅを介して続く２段の段付きの円筒面状とされている。径変化面８ａｄ，８ａｅは、この実施形態では段差面からなるが、テーパ面であってもよい。後側孔部８ａｃの後側部分の内周面は雌ねじ部１７に形成されている。 In the inner peripheral surface of the cylindrical portion 8a of the connector main body 8, the front side hole 8aa, the intermediate hole 8ab, and the rear side hole 8ac, which are successively larger in diameter, are interposed between the front and rear diameter changing surfaces 8ad and 8ae. It is in the form of a two-step stepped cylindrical surface. The diameter change surfaces 8ad and 8ae are step surfaces in this embodiment, but may be tapered surfaces. An inner peripheral surface of a rear side portion of the rear side hole 8ac is formed in a female screw portion 17.
　前側孔部８ａａには、シールド付き電線２の絶縁被覆４が露出した部分が挿通される。中間孔部８ａｂ内には前記導電性スリーブ９が挿通され、後側孔部８ａｃ内には前記防水材ホルダ１０が挿通される。前側孔部８ａａおよび後側孔部８ａｃの内径は、それぞれ、シールド付き電線２の絶縁被覆４、導電性スリーブ９、および防水材ホルダ１０が無理なく挿入できる最小の孔径とされている。 The exposed portion of the insulating coating 4 of the shielded electric wire 2 is inserted through the front side hole 8aa. The conductive sleeve 9 is inserted into the intermediate hole 8ab, and the waterproof material holder 10 is inserted into the rear hole 8ac. The inner diameters of the front side hole 8aa and the rear side hole 8ac are respectively set to the smallest hole diameters that the insulation coating 4 of the shielded electric wire 2, the conductive sleeve 9, and the waterproof material holder 10 can be inserted without difficulty.
　防水材ホルダ１０は、コネクタ本体８の中間孔部８ａｂに挿入されて、前側面が導電性スリーブ９に突き当てられ、かつ後側面が前記締め付けホルダ１３に突き当てられる。防水材ホルダ１０は、電線防水用パッキング１１および内部防水用パッキング１２を、後側（端子と逆側）および前側（端子側）に保持すると共に、締め付けホルダ１３の締め付け力を導電性スリーブ９に伝達する部材であって、鋼材等の金属製または合成樹脂製の硬い素材でリング状に形成されている。 The waterproof material holder 10 is inserted into the intermediate hole portion 8 ab of the connector main body 8 so that the front side surface abuts against the conductive sleeve 9 and the rear side surface abuts against the tightening holder 13. The waterproof material holder 10 holds the electric wire waterproofing packing 11 and the internal waterproofing packing 12 on the rear side (opposite side of the terminal) and the front side (terminal side), and the clamping force of the clamping holder 13 on the conductive sleeve 9 It is a member to be transmitted, and is formed in a ring shape from a hard material made of metal or synthetic resin such as steel.
　防水材ホルダ１０は、図６に示すように、内周面から後側面に渡る内側環状凹部２１が設けられ、かつ外周面から前端面に渡る外側環状凹部２２が設けられている。内側環状凹部２１の内周面２１ａは、底側（前記前側）が縮径するテーパ状面とされている。外側環状凹部２２は断面矩形状とされている。内側環状凹部２１および外側環状凹部２２にそれぞれ一部または全体が入るように、図１の前記電線防水用パッキング１１および内部防水用パッキング１２が配置される。 As shown in FIG. 6, the waterproof material holder 10 is provided with an inner annular recess 21 extending from the inner peripheral surface to the rear side, and an outer annular recess 22 extending from the outer peripheral surface to the front end surface. The inner circumferential surface 21 a of the inner annular recess 21 is a tapered surface whose diameter is reduced at the bottom side (the front side). The outer annular recess 22 is rectangular in cross section. The electric wire waterproofing packing 11 and the internal waterproofing packing 12 of FIG. 1 are disposed such that the inner annular recess 21 and the outer annular recess 22 are partially or entirely inserted, respectively.
　電線防水用パッキング１１は、シールド付き電線２の外周面と防水材ホルダ１０との間を密封する部材であり、ゴムまたは合成樹脂製でリング状の部材からなる。電線防水用パッキング１１の断面形状は、締め付けホルダ１３で防水材ホルダ１０の内側環状凹部２１内に押し込まれることでシールド付き電線２の外周面と防水材ホルダ１０との密で接触圧の高い面接触が得られる形状であることが好ましい。この実施形態では、図７Ａおよび図４に示すように、電線防水用パッキング１１の外周面の周方向複数箇所における前側部分に、変形部逃がし用凹部１１ａを有する形状とされている。変形部逃がし用凹部１１ａは、電線防水用パッキング１１の弾性変形した部分を逃がすことによって変形し易くする凹部である。 The electric wire waterproofing packing 11 is a member for sealing between the outer peripheral surface of the shielded electric wire 2 and the waterproof material holder 10, and is made of rubber or synthetic resin and is a ring-shaped member. The cross-sectional shape of the electric wire waterproofing packing 11 is a surface having a high contact pressure and a close contact between the outer peripheral surface of the shielded electric wire 2 and the waterproof material holder 10 by being pushed into the inner annular recess 21 of the waterproof material holder 10 by the tightening holder 13 Preferably, the shape is such that contact is obtained. In this embodiment, as shown in FIG. 7A and FIG. 4, the deformation portion relief concave portion 11 a is formed on the front side portion at a plurality of circumferential positions of the outer peripheral surface of the wire waterproofing packing 11. The deformed portion relief concave portion 11 a is a concave portion which is easily deformed by escaping the elastically deformed portion of the electric wire waterproofing packing 11.
　電線防水用パッキング１１の断面形状は、この他に例えば図７Ｂ～７Ｄにそれぞれ示すように、長方形状や、外周面がテーパ状となった円すい台状、円形状等の種々の形状が採用できる。電線防水用パッキング１１は、これらの図に示すような中空形状としても、または中実形状としてもよい。 The cross-sectional shape of the wire waterproofing packing 11 may adopt various shapes such as a rectangular shape, a truncated cone shape whose outer peripheral surface is tapered, and a circular shape as shown in FIGS. 7B to 7D, for example. . The wire waterproofing packing 11 may have a hollow shape as shown in these figures or a solid shape.
　図１の内部防水用パッキング１２は、ゴムまたは合成樹脂製でリング状の部材であり、Ｏリングであってもよく、または断面長方形の部材であってもよい。また、内部防水用パッキング１２は、中空形状としても、中実形状としてもよい。 The internal waterproofing packing 12 of FIG. 1 is a ring-shaped member made of rubber or synthetic resin, may be an O-ring, or may be a member having a rectangular cross section. Further, the internal waterproofing packing 12 may be hollow or solid.
　シールド接続用ばね１４は、導電性スリーブ９の端面とコネクタ本体８との接触性を高めるために介在させる部材であって、導電性とばね製を持つ金属製等の部材である。シールド接続用ばね１４は、例えば図８のダイアグラム（Ａ）および（Ｂ）に示す波座金形状、図９のダイアグラム（Ａ）および（Ｂ）に示す菊座金（歯突き座金とも呼ばれる）形状、または図１０のダイアグラム（Ａ）および（Ｂ）に示す一つ割りスプリングワッシャ形状とされてもよい。 The shield connecting spring 14 is a member interposed to enhance the contact between the end face of the conductive sleeve 9 and the connector main body 8, and is a member made of metal or the like having conductivity and spring. The shield connecting spring 14 has, for example, a wave washer shape shown in the diagrams (A) and (B) of FIG. 8, a chrysanthem washer (also called tooth thrust washer) shown in the diagrams (A) and (B) of FIG. It may be in the form of a split spring washer shown in the diagrams (A) and (B) of FIG.
　図１の締め付けホルダ１３は、鋼材等の金属または合成樹脂等の硬い素材で形成され、前部の外周面が雄ねじ部２３とされている。締め付けホルダ１３は、コネクタ本体８の雌ねじ部１７にねじ込まれることで、電線防水用パッキング１１を押し付けると共に防水材ホルダ１０に突き当てられてこの防水材ホルダ１０により導電性スリーブ９をコネクタ本体８の前側の径変化面８ａｄに押し付け状態とする。 The tightening holder 13 of FIG. 1 is formed of a hard material such as metal such as steel or synthetic resin, and the outer peripheral surface of the front portion is a male screw portion 23. The tightening holder 13 is screwed into the female screw portion 17 of the connector main body 8 to press the electric wire waterproofing packing 11 and abut against the waterproof material holder 10, and the conductive sleeve 9 is held by the waterproof material holder 10. It is in a state of being pressed against the diameter change surface 8ad on the front side.
　上記構成のシールド付き電線用コネクタ１による接続作業を説明する。シールド付き電線２に、締め付けホルダ１３、電線防水用パッキング１１、防水材ホルダ１０、内部防水用パッキング１２、導電性スリーブ９、およびシールド接続用ばね１４を順次挿通する。この後、図５Ａ～図５Ｃに示すようにシールド付き電線２の絶縁被覆４、シールド５および外皮６を剥ぎ、シールド５を折り返してその外周に導電性スリーブ９を前述のように止め付ける。この後、シールド付き電線２をコネクタ本体８に通し（図３の状態）、締め付けホルダ１３を図１のように締め付ける。この後、端子７の取付けを行う。 The connection work by the shielded wire connector 1 having the above configuration will be described. The clamp holder 13, the wire waterproofing packing 11, the waterproof material holder 10, the internal waterproofing packing 12, the conductive sleeve 9, and the shield connecting spring 14 are sequentially inserted into the shielded electric wire 2. After that, as shown in FIGS. 5A to 5C, the insulation coating 4, the shield 5 and the outer skin 6 of the shielded electric wire 2 are peeled off, the shield 5 is folded back and the conductive sleeve 9 is fixed to the outer periphery as described above. Thereafter, the shielded electric wire 2 is passed through the connector body 8 (the state of FIG. 3), and the tightening holder 13 is tightened as shown in FIG. Thereafter, the terminal 7 is attached.
　この構成のシールド付き電線用コネクタ１によると、シールド付き電線２のシールド折り返し部分５ａに被さってシールド５と導通状態となった導電性スリーブ９が、コネクタ本体８の内周に嵌まっている。この導電性スリーブ９は、締め付けホルダ１０の締め付けにより、防水材ホルダ１０で前側へ押され、コネクタ本体８の段差状の径変化面８ａｄに押し付けられる。その押し付け箇所で、シールド付き電線２のシールド５とコネクタ本体８とが電気的に接続され、接地回路が接続されることになる。このように軸方向に押し付け状態として接触させるため、車載における電線接続強度が確保され、振動がかかってもシールド付き電線２の接地回路の接続を確実に維持することが可能となる。この接続箇所では、シールド接続用ばね１４が介在するため、締め付けホルダ１３の締め込みでのがたつきや、経年結果での緩みが多少あった場合でも、接続が確保される。 According to the shielded electric wire connector 1 of this configuration, the conductive sleeve 9, which is in electrical communication with the shield 5, is fitted on the inner circumference of the connector body 8 so as to cover the shielded folded portion 5 a of the shielded electric wire 2. The conductive sleeve 9 is pushed forward by the waterproof material holder 10 by the tightening of the tightening holder 10 and pressed against the step-like diameter changing surface 8 ad of the connector main body 8. At the pressed portion, the shield 5 of the shielded electric wire 2 and the connector body 8 are electrically connected, and the grounding circuit is connected. As described above, since the contact in the axial direction is brought into contact with each other, the wire connection strength in the vehicle is secured, and the connection of the grounding circuit of the shielded wire 2 can be reliably maintained even if vibration is applied. At this connection point, since the shield connection spring 14 intervenes, the connection is secured even in the case where there is a looseness in the tightening of the tightening holder 13 or looseness due to aging.
　また、導電性スリーブ９は、その外周面の全周から面的にプレスして全面的に縮径させ、その上でさらにスポット的なかしめにより複数の陥没部１９を形成してシールド付き電線２のシールド折り返し部分５ａに食い込ませている。そのため、導電性スリーブ９のシールド付き電線２に対する固定強度が向上し、シールド５と導電性スリーブ９との電気的な接触がより一層確実に保たれる。 In addition, the conductive sleeve 9 is pressed from the entire circumference of the outer circumferential surface thereof to reduce the entire diameter, and a plurality of depressions 19 are further formed by spot caulking to form a shielded electric wire 2 Bite into the folded back portion 5a. Therefore, the fixing strength of the conductive sleeve 9 to the shielded electric wire 2 is improved, and the electrical contact between the shield 5 and the conductive sleeve 9 is more reliably maintained.
　防水については、コネクタ本体８と防水材ホルダ１０の間に内部防水用パッキング１２を挟み、防水材ホルダ１０と締め付けホルダ１３の間に電線防水用パッキング１１を挟み込んだ状態で締め付けホルダ１３を取付けている。そのため、シールド付き電線２とコネクタ本体８との間の防水性が得られる。この場合に、電線防水用パッキング１１は、防水材ホルダ１０の内周面から後側面に渡って形成された内側環状凹部２１に一部が入った状態で締め付けホルダ１３に押されるため、シールド付き電線２の外皮６に食い込むように電線防水用パッキング１１が変形し、接触面の押し付け圧が強くて、優れた防水性が得られる。前記内側環状凹部２１の内周面は底側が縮径するテーパ状面であるため、電線防水用パッキング１１は締め付けホルダ１３で軸方向に押されることで、縮径状態に弾性変形する。そのため、シールド付き電線２の外周により強く接触し、防水性がさらに向上する。防水材ホルダ１０とコネクタ本体８との間についても、防水材ホルダ１０の外周面から前側面に渡って形成された外側環状凹部２２に内部防水用パッキング１２を配置しているため、内部防水用パッキング１２がコネクタ本体８の内面に強く押し付けられ、確実な防水性が得られる。 For waterproofing, insert the internal waterproofing packing 12 between the connector body 8 and the waterproofing material holder 10, and attach the clamping holder 13 with the electrical wire waterproofing packing 11 sandwiched between the waterproofing material holder 10 and the clamping holder 13. There is. Therefore, waterproofness between the shielded electric wire 2 and the connector body 8 can be obtained. In this case, since the electric wire waterproofing packing 11 is pushed by the tightening holder 13 with a part thereof entering the inner annular recess 21 formed from the inner peripheral surface to the rear side of the waterproof material holder 10, it is provided with a shield The electric wire waterproofing packing 11 is deformed so as to bite into the outer skin 6 of the electric wire 2, the pressing pressure of the contact surface is strong, and excellent waterproofness is obtained. The inner peripheral surface of the inner annular recess 21 is a tapered surface whose diameter on the bottom side is reduced, so that the wire waterproofing packing 11 is elastically deformed to a reduced diameter state by being pushed in the axial direction by the tightening holder 13. Therefore, the outer periphery of the shielded electric wire 2 makes a strong contact, and the waterproofness is further improved. The internal waterproofing packing 12 is disposed in the outer annular recess 22 formed between the outer peripheral surface of the waterproof material holder 10 and the front side surface also between the waterproof material holder 10 and the connector main body 8, so for internal waterproofing The packing 12 is strongly pressed against the inner surface of the connector body 8, and a reliable waterproofness is obtained.
　このように、シールド付き電線２のシールド５と接地回路との接続を確実になされ、また確実な防水性が得られるため、接続やシールの確実化のための他の煩雑な構成が不要であり、シンプルな構造となって低コストで製作可能である。また、締め付けホルダ１３の締め付け作業で導電性スリーブ９の導電性の確保とコネクタ本体８内の防水性の確保との両方が同時に行え、作業性にも優れる。 Thus, the connection between the shield 5 of the shielded electric wire 2 and the ground circuit can be made reliable, and a reliable waterproofness can be obtained, so that other complicated configurations for securing the connection and the seal are unnecessary. It has a simple structure and can be manufactured at low cost. Further, both securing of the conductivity of the conductive sleeve 9 and securing of the waterproofness in the connector main body 8 can be simultaneously performed by the fastening operation of the fastening holder 13, and the workability is also excellent.
　締め付けホルダ１３は、外周の雄ねじ部２３をコネクタ本体８の雌ねじ部１７に螺合させて締め付けるようにしているため、簡素な構成で導電性スリーブ９および各パッキング１１，１２の強い押し付けが得られ、また押し付け力を得るための作業も回転により締め付けるだけでよくて、簡単である。 Since the clamping holder 13 is engaged with and screwed on the male screw portion 23 on the outer periphery with the female screw portion 17 of the connector main body 8, strong pressing of the conductive sleeve 9 and the respective packings 11 and 12 is obtained with a simple configuration. Also, the work for obtaining the pressing force may be simply tightened by rotation, which is simple.
　なお、コネクタ本体８への締め付けホルダ１３の取付形態は、上記実施形態では、締め付けホルダ１３の外周の雄ねじ部２３を用いるようにしたが、前記電線防水用パッキング１１および防水材ホルダ１０と共に導電性スリーブ９を押し付けることができる形態であればよく、他に種々の構成が採用できる。例えば、図示は省略するが、締め付けホルダ１３の前部を二重筒状として、その外側筒部の内周に設けた雌ねじ部をコネクタ本体８の外周に設けられた雄ねじ部にねじ込み内側筒部で防水材ホルダ１０を押し付けるようにしてもよい。またコネクタ本体８または締め付けホルダ１３をかしめることで締め付けホルダ１３をコネクタ本体８に取付けるようにしてもよい。 In the embodiment described above, the male screw portion 23 on the outer periphery of the clamp holder 13 is used to attach the clamp holder 13 to the connector main body 8. However, the electric wire waterproofing packing 11 and the waterproof material holder 10 are electrically conductive. Any other configuration may be employed as long as the sleeve 9 can be pressed. For example, although the illustration is omitted, the front portion of the tightening holder 13 has a double cylindrical shape, and the female screw portion provided on the inner periphery of the outer cylindrical portion is screwed into the male screw portion provided on the outer periphery of the connector body 8 The waterproof material holder 10 may be pressed at this time. Alternatively, the clamp holder 13 may be attached to the connector body 8 by caulking the connector body 8 or the clamp holder 13.
　今回開示された実施の形態はすべての点で例示であって制限的なものではないと考えられるべきである。本発明の範囲は上記した説明ではなくて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およ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。 It should be understood that the embodiments disclosed herein are illustrative and non-restrictive in every respect. The scope of the present invention is indicated not by the above description but by the claims, and is intended to include all the modifications within the meaning and scope equivalent to the claims.
１…シールド付き電線用コネクタ
２…シールド付き電線
３…芯線
４…絶縁被覆
５…シールド
５ａ…シールド折り返し部分
６…外皮
８…コネクタ本体
９…導電性スリーブ
１０…防水材ホルダ
１１…電線防水用パッキング
１２…内部防水用パッキング
１３…締め付けホルダ
２１…内側環状凹部 DESCRIPTION OF SYMBOLS 1 ... Connector for electric wire with shield 2 ... Wire with shield 3 ... Core wire 4 ... Insulating coating 5 ... Shield 5a ... Shield return part 6 ... Skin 8 ... Connector main body 9 ... Conductive sleeve 10 ... Waterproof material holder 11 ... Packing for electric wire waterproofing 12: Internal waterproofing packing 13: Clamping holder 21: Inner annular recess

Claims (6)

  1. 　芯線、絶縁被覆、シールド、および外皮が同心に積層されたシールド付き電線を接続するコネクタであって、
    　前記シールド付き電線の端部における前記外皮が剥ぎ取られた箇所のシールド折り返し部分の外周に被さる導電性スリーブであって、前記シールド折り返し部分では、前記シールドが折り返されて前記外皮の外周に重ねられている、導電性スリーブと、
    　内周面が、順次大径となる前側孔部、中間孔部、および後側孔部からなる円筒面状とされ、前記前側孔部と前記中間孔部の間に前側の径変化面が介在し、かつ、前記中間孔部と前記後側孔部の間に後側の径変化面が介在するコネクタ本体であって、前記前側孔部に前記シールド付き電線の前記端部における前記被覆が露出した部分を挿入状態とし、かつ、前記中間孔部に前記導電性スリーブをそれぞれ挿入状態とする導電性のコネクタ本体と、
    　前記導電性スリーブに対する突き当て状態で、前記後側孔部内で前記シールド付き電線の外周に嵌まる防水材ホルダであって、内周面から前記後側面に渡る内側環状凹部を有するリング状の防水材ホルダと、
    　この防水材ホルダの前記内側環状凹部に少なくとも一部が嵌まり前記シールド付き電線の外周面に密接するリング状の電線防水用パッキングと、
    　前記防水材ホルダと前記コネクタ本体の前記後側の径変化面との間に介在する内部防水用パッキングと、
    　前記コネクタ本体の後端部に取付けられた締め付けホルダであって、前記電線防水用パッキングを押し付けると共に前記防水材ホルダに突き当てられてこの防水材ホルダにより前記導電性スリーブを前記コネクタ本体の前記前側の径変化面に押し付け状態とする締め付けホルダ、
    　とを備えるシールド付き電線用コネクタ。     A connector for connecting a shielded electric wire in which a core wire, an insulation coating, a shield, and an outer shell are concentrically stacked,
    A conductive sleeve covering an outer periphery of a shield return portion at a portion where the outer cover is peeled off at an end of the shielded electric wire, wherein the shield is folded back and overlapped on the outer periphery of the outer cover at the shield return portion. And conductive sleeves,
    The inner peripheral surface is formed in a cylindrical surface shape including a front side hole, an intermediate hole, and a rear side hole that sequentially increase in diameter, and a diameter change surface on the front side intervenes between the front side hole and the middle hole. And a connector body in which a rear diameter-changing surface intervenes between the intermediate hole and the rear hole, and the coating at the end of the shielded electric wire is exposed in the front hole. A conductive connector body in which the inserted portion is in an inserted state and the conductive sleeve is inserted in the intermediate hole;
    A waterproof material holder which fits on the outer periphery of the shielded electric wire in the rear side hole portion in a butting state with respect to the conductive sleeve, and is a ring-like waterproof having an inner annular recess extending from an inner peripheral surface to the rear side surface. Material holder,
    A ring-shaped packing for electric wire waterproofing, which is at least partially fitted in the inner annular recess of the waterproof material holder and closely in contact with the outer peripheral surface of the shielded electric wire;
    An internal waterproofing packing interposed between the waterproof material holder and the rear surface of the connector body on which the diameter is changed;
    A clamp holder attached to a rear end of the connector body, wherein the electric wire waterproofing packing is pressed and abutted against the waterproofing material holder so that the conductive sleeve is held by the waterproofing material holder on the front side of the connector main body Tightening holder pressed against the diameter change surface of the
    And shielded electrical wire connector.
  2. 　請求項１に記載のシールド付き電線用コネクタにおいて、前記導電性スリーブは、全周が縮径状態に圧縮変形して前記シールド折り返し部分の外周に接触するシールド付き電線用コネクタ。 The shielded cable connector according to claim 1, wherein the conductive sleeve is compressed and deformed in its entire circumference into a diameter-reduced state to contact the outer periphery of the shield folded portion.
  3. 請求項１または請求項２に記載のシールド付き電線用コネクタにおいて、前記導電性スリーブは、円周方向の複数箇所それぞれに、前記導電性スリーブの外周側の面が陥没面となり内周側の面が突出面となって前記シールド折り返し部分に食い込むスポット状の陥没部を有するシールド付き電線用コネクタ。 The connector for a shielded electric wire according to claim 1 or 2, wherein the conductive sleeve has a surface on the outer peripheral side of the conductive sleeve as a depressed surface at a plurality of positions in the circumferential direction, and a surface on the inner peripheral side. The connector for shielded electric wire having a spot-like depression which bites into the shield turnback portion as a protruding surface.
  4. 　請求項１ないし請求項３のいずれか１項に記載のシールド付き電線用コネクタにおいて、前記コネクタ本体の前記前側の径変化面と前記導電性スリーブとの間に、導電性のシールド接続用ばねが介在するシールド付き電線用コネクタ。 4. The shielded connector for electric wire according to any one of claims 1 to 3, wherein a conductive shield connecting spring is provided between the diameter changing surface on the front side of the connector body and the conductive sleeve. Interposed shielded wire connector.
  5. 　請求項１ないし請求項４のいずれか１項に記載のシールド付き電線用コネクタにおいて、前記防水材ホルダの前記内側環状凹部の内周面は、底側が縮径するテーパ状面であるシールド付き電線用コネクタ。 The shielded electric wire connector according to any one of claims 1 to 4, wherein the inner peripheral surface of the inner annular recess of the waterproof material holder is a tapered surface whose diameter is reduced on the bottom side. Connector.
  6. 　請求項１ないし請求項５のいずれか１項に記載のシールド付き電線用コネクタにおいて、前記締め付けホルダは、外周に設けられた雄ねじ部が、前記コネクタ本体の内周に設けられた雌ねじ部に螺合するシールド付き電線用コネクタ。 The connector for a shielded electric wire according to any one of claims 1 to 5, wherein the male screw portion provided on the outer periphery of the tightening holder is screwed on the female screw portion provided on the inner periphery of the connector main body. Shielded wire connector.
PCT/JP2018/024184 2017-06-26 2018-06-26 Connector for wire with shield WO2019004207A1 (en)

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JP2022070624A (en) * 2020-10-27 2022-05-13 住友電装株式会社 Shield connection structure and connector

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000123924A (en) * 1998-10-13 2000-04-28 Yazaki Corp Shield electric wire connections structure
JP2014096275A (en) * 2012-11-09 2014-05-22 Union Machinery Co Ltd Connector for electric wire with shield

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000123924A (en) * 1998-10-13 2000-04-28 Yazaki Corp Shield electric wire connections structure
JP2014096275A (en) * 2012-11-09 2014-05-22 Union Machinery Co Ltd Connector for electric wire with shield

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