WO2022202704A1 - 電線接続方法、接合電線、電線固定装置及び接合電線製造装置 - Google Patents

電線接続方法、接合電線、電線固定装置及び接合電線製造装置 Download PDF

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Publication number
WO2022202704A1
WO2022202704A1 PCT/JP2022/012811 JP2022012811W WO2022202704A1 WO 2022202704 A1 WO2022202704 A1 WO 2022202704A1 JP 2022012811 W JP2022012811 W JP 2022012811W WO 2022202704 A1 WO2022202704 A1 WO 2022202704A1
Authority
WO
WIPO (PCT)
Prior art keywords
fixing
terminal
wire
fixing member
electric wire
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
Application number
PCT/JP2022/012811
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
肇宏 中村
一弘 樋口
幸宏 鳥本
智裕 中山
太志 高野
亮 中川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Furukawa Electric Co Ltd
Furukawa Automotive Systems Inc
Original Assignee
Furukawa Electric Co Ltd
Furukawa Automotive Systems Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Furukawa Electric Co Ltd, Furukawa Automotive Systems Inc filed Critical Furukawa Electric Co Ltd
Priority to JP2023509146A priority Critical patent/JP7803929B2/ja
Priority to CN202280021735.5A priority patent/CN116998066A/zh
Priority to EP22775491.8A priority patent/EP4318810B1/en
Publication of WO2022202704A1 publication Critical patent/WO2022202704A1/ja
Priority to US18/471,772 priority patent/US20240014640A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • 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
    • H01R4/02—Soldered or welded connections
    • H01R4/021—Soldered or welded connections between two or more cables or wires
    • 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
    • H01R4/02—Soldered or welded connections
    • 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
    • H01R4/02—Soldered or welded connections
    • H01R4/029—Welded connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
    • H01R43/0214—Resistance welding
    • 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
    • H01R4/22—End caps, i.e. of insulating or conductive material for covering or maintaining connections between wires entering the cap from the same end
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/28—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for wire processing before connecting to contact members, not provided for in groups H01R43/02 - H01R43/26

Definitions

  • the present invention relates to, for example, a wire connection method, a joint wire, a wire fixing device, and a joint wire manufacturing device for electrically connecting exposed conductors of a plurality of coated wires.
  • a covered electric wire in which a conductor composed of a plurality of core wires is covered with an insulating coating is used.
  • terminal conductors exposed from the insulating covering are sometimes connected to each other.
  • Patent Document 1 discloses a method of joining by
  • the present invention aims to provide a wire connection method, a joint wire, a wire fixing device, and a joint wire manufacturing device capable of joining terminal conductors in a bundled state.
  • the present invention relates to a wire connection method for conductively connecting exposed end conductors of a plurality of covered electric wires, comprising: a grouping step of grouping the respective covered wires; and a bonding step of setting a plurality of the covered wires, to which the plurality of terminal conductors are fixed by the fixing member, in a bonding device and bonding the exposed terminal conductors.
  • a plurality of covered electric wires bundled together and a fixing member for fixing the front end sides of the plurality of terminal conductors exposed from the tips of the respective covered electric wires are provided, and the plurality of terminal conductors fixed by the fixing member are provided.
  • the fixing member is a cover member made of resin or metal that covers and fixes the tip side of the bundled terminal conductors. It includes agents, chemicals, and insulating coatings that cover the tip side of the terminal conductor exposed in the covered electric wire.
  • the above-mentioned fixing of the terminal conductor with the fixing member includes the case of directly or indirectly fixing the terminal conductor using the fixing member.
  • the case where the fixing member is directly attached to the terminal conductor and fixed the case where the terminal conductor is indirectly fixed by attaching the fixing member to the insulating coating covering the tip side of the terminal conductor is included.
  • the joining device may be any device as long as it can electrically connect the terminal conductors, and includes other devices for connecting electric wires, such as ultrasonic joining devices, laser joining devices, crimping joining devices, and resistance welding devices.
  • the terminal conductors exposed from the insulating coating can be fixed by the fixing member to prevent the terminal conductors from scattering. It can be placed in a splicing device to conductively connect the terminal conductors. This makes it possible to manufacture a joint electric wire with stable conductivity.
  • the arrangement of the terminal conductors may be arbitrary, such as a rectangular shape such as a trapezoid or a rhombus, a hexagonal shape, or a polygonal shape having a cross-sectional shape close to a circular shape.
  • a removing step of removing the fixing member may be performed. According to the present invention, the tip side of the joined terminal conductor which is unnecessary can be removed.
  • removing the above-mentioned fixing member means, for example, removing the fixing member by removing it, or cutting or dissolving a portion of the terminal conductor including the portion where the fixing member is fixed or the portion fixed by the fixing member. including the case of removing by
  • the removing step may be performed before the bonding step.
  • the terminal conductor can be conductively connected without fear of interference between the joining device and the fixing member, for example.
  • the bonding step may be performed before the removing step. According to the present invention, it is possible to electrically connect terminal conductors in a securely bundled state. This makes it possible to manufacture a joint electric wire with stable conductivity.
  • the fixing member may be a melt hardening material that hardens after being melted.
  • the terminal conductors can be reliably fixed by the fixing member that has been melted and then hardened, the terminal conductors can be easily and reliably grouped together. Therefore, it is possible to improve the working efficiency of the grouping process, and further suppress the positional movement of each terminal conductor in the fixing process. Therefore, it is possible to more efficiently manufacture a joint electric wire having stable conductivity.
  • a semi-stripping step is performed in which at least the insulating coating corresponding to the length of the terminal conductor of the coated electric wire is cut off from other insulating coatings and shifted to the tip side,
  • a tip side of the terminal conductor in the plurality of insulating coatings shifted to the tip side is fixed by welding, and the welded and fixed insulating coating may be used as the molten hardening material.
  • the process necessary for exposing the terminal conductor to be joined is performed in the semi-stripping process, and the semi-stripping process is part of the fixing process. It is possible to reduce the work in the fixing process compared to the case of fixing with resin or the like. Thereby, the manufacturing efficiency of the joint electric wire can be improved.
  • the terminal conductor is fixed by using the insulating coating that is discarded after the terminal conductor is exposed, the terminal conductor can be efficiently collected and fixed without using any other separate member, and the waste can be effectively utilized. can. Furthermore, since the insulation coating removed in the removal step is welded and fixed, scattering of fine waste can be prevented.
  • a plurality of covered electric wires and a fixing member for fixing the tip side of a plurality of terminal conductors exposed from the tip of each covered electric wire are provided, and the terminal conductors fixed by the fixing member are joined.
  • An electric wire fixing device used for manufacturing a jointed electric wire characterized in that a fixing mechanism is provided for fixing the bundled terminal conductors with the fixing member.
  • a spliced electric wire manufacturing apparatus for manufacturing a spliced electric wire comprising: a wire arranging device for arranging the plurality of coated wires; a wire connecting device for connecting the plurality of terminal conductors; and the above-described wire fixing device. It is characterized by
  • the wire fixing device can fix the bundled terminal conductors with the fixing member, so that the efficiency of the manufacturing work in the manufacturing process of the joint wire can be improved.
  • the fixing mechanism separates at least the length of the terminal conductor of the coated electric wire from other insulating coatings, and attaches the fixing member to a plurality of insulating coatings shifted toward the tip end. You may fix the said insulating coating which carried out.
  • the electric wire fixing device can fix the insulating coating disposed on the tip side of the bundled terminal conductors with the fixing member, so that the efficiency of the manufacturing work in the manufacturing process of the joint electric wire can be improved. .
  • the insulating coating removed in the removal step is welded and fixed, scattering of fine waste can be prevented.
  • the fixing mechanism may include a tape fixing device for fixing the terminal conductor by attaching the fixing member made of adhesive tape to the tip side of the terminal conductor.
  • the adhesive tape can be easily attached to the terminal conductor with the same accuracy using the wire fixing device, so that the efficiency of the manufacturing work in the manufacturing process of the joint wire can be improved.
  • the tip portions of the terminal conductors to be removed in the removal step are fixed with an adhesive tape and bundled together, scattering of fine waste can be prevented.
  • the fixing mechanism includes a resin coating device for applying the fixing member made of an ultraviolet curable resin that is cured by irradiating ultraviolet rays to the tip side of the terminal conductor, and the fixing member. may be provided with an ultraviolet irradiating device for irradiating the distal end side of the terminal conductor coated with ultraviolet rays.
  • the wire fixing device can be used to bundle the tip portion of the terminal conductor with the ultraviolet curable resin, so the efficiency of the manufacturing work in the manufacturing process of the joint wire can be improved.
  • the tip portions of the terminal conductors to be removed in the removal step are fixed and bundled with the ultraviolet curable resin, scattering of fine waste can be prevented.
  • the fixing mechanism may be configured by a heating device that melts the fixing member, which is a molten hardening material that hardens after being melted.
  • the fixing member attached to the tip portion of the terminal conductor and melted by heating and then hardened can be used, so that the efficiency of the manufacturing work in the manufacturing process of the joint wire can be improved. can be improved.
  • the tip portions of the terminal conductors to be removed in the removal step are fixed by the fixing member and bundled together, scattering of fine waste can be prevented.
  • the fixing mechanism is a melting hardening material that separates at least the length of the terminal conductor of the coated wire from other insulating coatings and hardens after melting a plurality of insulating coatings shifted to the tip side. It may be configured with a heating device that melts so as to be
  • the wire fixing device is used to melt the insulating coating at the tip portion of the terminal conductor toward the tip side and to melt and harden it with the heating device.
  • the efficiency of manufacturing work in the manufacturing process can be improved.
  • the tip portion of the terminal conductor to be removed in the removal step is fixed and bundled with the hardened insulating coating, scattering of fine waste can be prevented.
  • the terminal conductors are fixed by using the insulating coating that is discarded after the terminal conductors are exposed, the terminal conductors can be efficiently collected and fixed without using other members, and the waste can be effectively utilized. can be done.
  • an electric wire connection method a joint electric wire, an electric wire fixing device, and a joint electric wire manufacturing device capable of joining together terminal conductors.
  • FIG. 1 is a schematic perspective view of a conductor-bonded electric wire;
  • FIG. Flowchart of a wire connection method.
  • the schematic perspective view of a joining process. The schematic block diagram of a joining apparatus. Sectional drawing of a joining process and a removal process.
  • the schematic perspective view of a junction electric wire. Flowchart of another wire connection method.
  • the schematic perspective view of the fixing process of other embodiment. The schematic perspective view of the fixing process of other embodiment.
  • the schematic perspective view of the fixing process of other embodiment. The schematic perspective view of the fixing process of other embodiment.
  • FIG. 1 shows a schematic perspective view of a conductor-bonded wire 1
  • FIG. 2 shows a flow chart of a wire connection method.
  • FIG. 3 shows a schematic perspective view explaining the semi-stripping step s1 and the grouping step s2, and
  • FIG. 4 shows a schematic perspective view explaining the fixing step s3.
  • FIG. 5 shows a schematic perspective view for explaining the joining step s4, and FIG. 6 shows a block diagram of a joining apparatus.
  • FIG. 7 shows a cross-sectional view for explaining the bonding step s4 and the removing step s5.
  • FIG. 8 shows a schematic perspective view of the joint electric wire 10 in which the resin cover 50 is attached to the tip side of the jointed terminal conductor 21a. 7 shows a cross-sectional view taken along the longitudinal direction L at the center in the width direction W of the joining portions of the terminal conductors 21a.
  • a width direction W is a direction orthogonal to the longitudinal direction L and the vertical direction Z in FIG.
  • the side where the conductor 2 is exposed along the longitudinal direction L is defined as the distal side
  • the side opposite to the side where the conductor 2 is exposed is defined as the proximal side.
  • the wire connection method described below is a method of connecting the exposed terminal conductors 21a of the plurality of coated wires 20 so as to be conductive.
  • a plurality of coated electric wires 20 having terminal conductors 21 a exposed from the insulating coating 22 on the tip side are arranged in a desired arrangement, and the tip side is fixed, and a plurality of wires lined up in a desired arrangement using a wire connection device 40 are arranged.
  • This is a method of manufacturing the conductor-bonded electric wire 1 by applying ultrasonic vibration to the terminal conductors 21a while applying a predetermined compressive force to connect the terminal conductors 21a so as to be conductive.
  • the conductor-bonded electric wire 1 manufactured according to the present invention has a terminal joint portion 4 to which the conductor 2 exposed from the insulating coating 3 is joined on the side.
  • this conductor-joined electric wire 1 is constructed by arranging a plurality of covered electric wires 20 in a desired arrangement and joining the conductors 21 (terminal conductors 21a).
  • the covered electric wire 20 is composed of a conductor 21 which is a stranded wire obtained by twisting a plurality of aluminum alloy strands, and an insulating coating 22 covering the outside of the conductor 21 (see FIG. 3).
  • the terminal conductor 21 a to be joined refers to the conductor 21 exposed from the insulating coating 22 on the tip side of the coated wire 20 .
  • the wire placement device 30 for placing the covered wire 20 and the wire connection device 40 for joining the terminal conductor 21a will be briefly described with reference to FIGS. 3, 5 and 6.
  • FIG. 3 the wire arranging device 30 includes a conductor arranging portion 31 for arranging the terminal conductors 21a exposed from the insulating coating 22 on the distal end side of the covered electric wire 20 in a predetermined arrangement, and the base end side of the terminal conductors 21a.
  • a covering arrangement portion 32 for arranging the insulating covering 22 is arranged along the longitudinal direction L. As shown in FIG.
  • the conductor placement portion 31 is composed of a pair of conductor side movable walls 311, 311 movable along the width direction W, and a conductor placement table 312 on which the terminal conductor 21a is placed.
  • the conductor-side movable walls 311, 311 are arranged on the upper surface of the conductor placement table 312, and are configured so that the spacing between them can be appropriately changed according to the number and arrangement of the covered wires 20 to be joined.
  • the insulating coating 22 can also be arranged around the terminal conductor 21a.
  • the coating placement section 32 is composed of a pair of coating side movable walls 321, 321 movable along the width direction W, and a coating placement table 322 on which the insulating coating 22 is placed.
  • the covering-side movable walls 321, 321 are arranged on the upper surface of the covering placement table 322, and are configured so that the spacing can be appropriately changed according to the number and arrangement of the covered electric wires 20 to be joined. It is
  • the wire arrangement device 30 in this embodiment is not limited to the configuration described above, and may have any configuration as long as the terminal conductors 21a can be arranged in a desired arrangement.
  • a member that presses the terminal conductor 21a and the insulating coating 22 from above may be provided, or only the tip side of the coated wire 20 may be arranged so as to form a desired arrangement around the terminal conductor 21a.
  • a wire connecting device 40 for joining a plurality of terminal conductors 21a is a general ultrasonic joining device, and as shown in FIGS. Then, the horn 42 approaches the terminal conductor 21a arranged on the anvil 41 from above and applies ultrasonic vibration to the terminal conductor 21a, and moves in the width direction W along the bottom surface of the horn 42 to form a plurality of and a restriction portion 43 that restricts the width direction W of the terminal conductor 21a.
  • the wire connecting device 40 includes an ultrasonic vibration generator 44 for ultrasonically vibrating the horn 42, a horn driving unit 45 for moving the horn 42 in the vertical direction Z, and a regulating unit 43 for moving in the width direction W.
  • a control unit for controlling the ultrasonic vibration generating unit 44, the horn driving unit 45 and the jaw driving unit 46, and the ultrasonic vibration generating unit 44, the horn driving unit 45 and the jaw driving unit 46. 47 are provided.
  • the control unit 47 By controlling the control unit 47, it is possible to control ON/OFF of the ultrasonic vibration of the horn 42 and to control the driving of the horn driving unit 45 and the jaw driving unit 46. As a result, while controlling the movement of the horn 42 in the vertical direction Z and the movement of the regulating portion 43 in the width direction W, the horn 42 is controlled so that the pressure acting on the terminal conductors 21a of the plurality of covered wires 20 becomes a predetermined value. can be ultrasonically vibrated, and a plurality of terminal conductors 21a can be joined.
  • the wire connection method of the conductor-bonded wire 1 is mainly composed of five steps.
  • the wire connection method includes a semi-strip (also referred to as half-strip) step s1 of stripping the insulating coating 22 on the tip side of the coated wire 20 to expose the conductor 21, and a plurality of coated wires exposing the conductor 21.
  • a grouping step s2 for grouping 20 into a desired arrangement a fixing step s3 for fixing exposed conductors 21 in the grouped plural covered wires 20, and a grouped plurality of covered wires 20 for fixing the exposed conductors 21. It is composed of a bonding step s4 for bonding and a removing step s5 for removing the fixing member fixed in the fixing step s3.
  • the insulating coating 22 on the tip side of the covered electric wire 20 is cut and shifted by a predetermined length along the longitudinal direction L to expose the conductor 21 (semi-stripping step s1). .
  • the insulating coating 22 moved to the tip side is called a slit coating 22a
  • the exposed conductor 21 is called a terminal conductor 21a.
  • the slit coating 22a is an insulating coating 22 that is at least longer than the length of the terminal conductor 21a, and is shifted toward the distal end so as to be separated from the insulating coating 22 on the base end side of the terminal conductor 21a.
  • the tip of the conductor 21 is inserted up to the central portion of the slit covering 22a, as indicated by the dotted line in FIG.
  • a plurality of covered electric wires 20 are grouped and arranged in the wire arrangement device 30 so that the terminal conductors 21a exposed on the tip side of the covered electric wires 20 are arranged in a predetermined arrangement (collecting step s2).
  • the terminal conductors 21a exposed on the tip side of the covered electric wires 20 are arranged in a predetermined arrangement (collecting step s2).
  • an example in which three coated wires 20 arranged in the width direction W are arranged in two stages in the vertical direction Z is shown.
  • the conductor-side movable walls 311, 311 are moved in the width direction W so that a total of six terminal conductors 21a, each three in the vertical direction, are arranged.
  • the terminal conductor 21 a is arranged on the conductor arrangement table 312 so as to be sandwiched between the conductors 311 .
  • the covering-side movable walls 321, 321 are moved in the width direction W so that the insulating coverings 22 on the proximal end side of the terminal conductors 21a can maintain the same arrangement, and the covering-side movable walls 321, 321 move 6 so as to be sandwiched between the covering-side movable walls 321, 321.
  • the insulating covering 22 of the book is placed on the covering placement table 322 .
  • the six covered electric wires 20 can be grouped in a predetermined arrangement (grouping step s2). Note that the arrangement of the covered electric wires 20 is not limited to this arrangement and can be changed as appropriate. Also, the number of coated electric wires 20 arranged in the vertical direction Z does not need to be the same, and may be different.
  • the insulating coating 22 on the base end side of the terminal conductor 21a and the tip side of the slit coating 22a are arranged so that the positions of the base end side or the tip side of the terminal conductor 21a are aligned. Alignment may be performed.
  • each of the slit coverings 22a moved to the tip side of the covered wires 20 is heat-melted.
  • a resin cover 50 made of hardening material is attached.
  • the resin cover 50 is made of a thermoplastic resin that melts when heated and hardens when cooled.
  • the resin cover 50 is heated and melted, the heat is cooled and hardened, thereby integrally fixing the six slit coverings 22a with the resin cover 50 .
  • the terminal conductors 21a of the bundled plural covered electric wires 20 can be fixed through the resin covers 50 fixed to the plural slit coverings 22a (fixing step s3).
  • the bundled coated wires 20 can be connected from the wire arrangement device 30. It is possible to prevent the terminal conductors 21a from scattering when moving to the device 40 or the like.
  • the step of attaching the resin cover 50 to the plurality of slit coverings 22a arranged so that the positions of the terminal conductors 21a are aligned is, for example, manually attaching the resin cover 50 to the plurality of slit coverings 22a and heating the resin cover 50.
  • an attachment mechanism that grips the resin cover 50 and attaches it to the slit coating 22a, and a fixing mechanism (heating device) that heats and melts the resin cover 50 attached to the slit coating 22a. may be performed using a wire securing device with
  • the wire fixing device may include a cooling mechanism for cooling the melted resin cover 50 .
  • the six covered wires 20 to which the six terminal conductors 21a are fixed with the resin covers 50 are set in the wire connection device 40, and the six terminal conductors 21a are joined (joining step s4).
  • the terminal conductor 21 a of the covered electric wire 20 whose tip is fixed with the resin cover 50 is arranged on the anvil 41 .
  • the horn 42 is moved in the vertical direction Z to apply a predetermined pressure to the six terminal conductors 21a. is applied, and the horn 42 is ultrasonically vibrated to ultrasonically bond the terminal conductor 21a (bonding step s4).
  • the terminal conductors 21a are fixed via the resin cover 50 that fixes the slit coating 22a, the six terminal conductors 21a can be ultrasonically bonded while maintaining the desired arrangement more reliably. . Thereby, the joint electric wire 10 with the resin cover 50 attached to the distal end side is manufactured (see FIG. 8).
  • the joint electric wire 10 is provided with a plurality of coated electric wires 20 bundled together and a resin cover 50 for fixing the tip side of a plurality of terminal conductors 21a exposed from the tips of the respective covered electric wires 20. It has a terminal conductor joint portion 11 to which a plurality of fixed terminal conductors 21a are joined.
  • a cutting tool D is used to cut the tip side of the terminal conductor 21a in the joint wire 10 to which the plurality of terminal conductors 21a are joined.
  • the plurality of integrated slit coatings 22a can be removed together with the resin cover 50 (removal step s5), and the conductor-bonded electric wire 1 can be manufactured.
  • the conductor-bonded electric wire 1 manufactured by cutting the tip side of the bonded electric wire 10 in this way may constitute a wire harness by bundling a plurality of conductor-bonded electric wires 1, and the conductor-bonded electric wire 1 may be a wire You may comprise a part of harness.
  • FIG. 7(d) when cutting the tip end side of the terminal conductor 21a of the joint wire 10, the cut is made near the tip end of the terminal conductor joint portion 11. You may cut
  • the wire connection method is a method of electrically connecting the exposed terminal conductors 21a of the plurality of covered wires 20, and includes a grouping step s2 of grouping the respective covered wires 20, and a grouping step s2 of grouping the plurality of covered wires 20
  • a fixing step s3 of fixing the terminal conductors 21a with the resin cover 50, and a plurality of covered wires 20 having the plurality of terminal conductors 21a fixed with the resin cover 50 are set in the wire connection device 40, and the plurality of terminal conductors 21a are joined. Then, the bonding step s4 is performed.
  • the junction wire 10 includes a plurality of coated wires 20 bundled together and a resin cover 50 for fixing the distal ends of the plurality of terminal conductors 21 a exposed from the distal ends of the coated wires 20 .
  • a plurality of terminal conductors 21a are joined, and the resin cover 50 is a melt-cured material that is cured after being melted.
  • the terminal conductors 21a exposed from the insulating coating 22 can be fixed with the resin cover 50 to prevent scattering of the terminal conductors 21a.
  • the conductor 21a can be placed in the wire connection device 40 to electrically connect the terminal conductor 21a. Therefore, the conductor-bonded electric wire 1 with stable conductivity can be manufactured.
  • the removal step s5 for removing the resin cover 50, the tip side of the joined terminal conductor 21a that is no longer necessary can be removed. Note that the removal step s5 is not necessarily performed, and can be performed as appropriate.
  • the terminal conductors 21a bundled by the resin cover 50 can be arranged and joined to the wire connecting device 40, so that the bundled terminal conductors 21a can be electrically connected. possible to connect. Thereby, the conductor-bonded electric wire 1 with stable conductivity can be manufactured.
  • the resin cover 50 is a melt hardening material that is hardened after being melted, the terminal conductors 21a can be reliably fixed by the resin cover 50 that is hardened after being melted. can. Therefore, it is possible to improve the working efficiency of the grouping step s2, and further suppress the positional movement of the terminal conductors 21a in the fixing step s3. Therefore, the conductor-bonded electric wire 1 having stable conductivity can be manufactured more efficiently.
  • the covered electric wire corresponds to the covered electric wire 20
  • the terminal conductor corresponds to the terminal conductor 21a
  • the summarizing step corresponds to the summarizing step s2
  • the fixing member corresponds to the resin cover 50
  • the fixing step corresponds to the fixing step s3
  • the joining device corresponds to the wire connection device 40
  • the bonding step corresponds to the bonding step s4
  • the removing step corresponds to the removing step s5
  • the insulating coating corresponds to the insulating coating 22
  • the semi-strip process corresponds to the semi-strip process s1
  • the junction wire corresponds to the junction wire 10,
  • the present invention is not limited to the configurations of the embodiments described above, and many embodiments can be obtained.
  • the terminal conductor 21a is ultrasonically bonded using the wire connection device 40, but the bonding method is not particularly limited as long as the terminal conductor 21a can be bonded. It may be joined by welding or by using an electrode such as resistance welding.
  • the removing step s5 of removing the resin cover 50 to which the terminal conductor 21a is fixed is performed after the joining step s4 of joining the terminal conductor 21a using the wire connecting device 40.
  • the removal step s5 may be performed before the bonding step s4.
  • the resin cover 50 is attached and fixed to the slit covering 22a of the covered electric wire 20 arranged in the electric wire arrangement device 30 (fixing step s3), the bundled plural covered electric wires 20 are arranged on the anvil 41 (the electric wire Placement step s3-2). Then, for example, after removing the resin cover 50 by cutting the terminal conductor 21a on the base end side of the resin cover 50 (removal step s5), the terminal conductor 21a is ultrasonically bonded using the wire connecting device 40 (bonding step s4).
  • the terminal conductor 21a can be electrically conductively connected without worrying that the wire connecting device 40 and the resin cover 50 interfere with each other. Therefore, it is possible to reduce the mental burden on the worker when arranging the bundled plural covered wires 20 on the anvil 41, and to stably manufacture the conductor-bonded wire 1.
  • the terminal conductors 21a are fixed by attaching the resin cover 50 to the slit covering 22a. may be fixed.
  • FIG. 10 shows a schematic perspective view of a method of fixing the terminal conductor 21a with the first fixing member 60
  • FIG. 11 shows a schematic perspective view of a method of fixing the terminal conductor 21a with the second fixing member 70.
  • FIG. 12 shows a schematic perspective view of a method of fixing the terminal conductor 21a using tape T
  • FIG. 13 shows a schematic perspective view of a method of fixing terminal conductor 21a using ultraviolet curable resin B
  • FIG. FIG. 4 shows a schematic perspective view of a method of fixing the terminal conductor 21a using the slit covering 22a.
  • first fixing member 60 or second fixing member 70 instead of the resin cover 50 to the tip of the slit covering 22a, a plurality of terminal conductors 21a can be fixed (fixing step s3).
  • the first fixing member 60 will be described below.
  • the first fixing member 60 is composed of a bottom portion 61 and an upper portion 62 that can be assembled in the vertical direction Z, as shown in FIG. 10(a).
  • the bottom portion 61 is a substantially prismatic body configured in a rectangular shape in a plan view, and has a lower arrangement concave portion 611 in which the slit covering 22a is arranged, a pair of convex portions 612 projecting upward, and 612 are provided.
  • the lower placement recess 611 is a groove formed by recessing the central portion of the upper surface along the longitudinal direction L, and is configured such that a plurality of slit coatings 22a can be placed.
  • the projections 612 are substantially cylindrical projecting pieces with tapered ends, and are provided in pairs in the width direction W with the lower arrangement recess 611 interposed therebetween. It should be noted that the convex portion 612 is made of a thermoplastic resin and configured to be deformable by applying heat.
  • the upper portion 62 is a substantially prismatic body configured in a rectangular shape in plan view, and its height (length in the vertical direction Z) is equal to the height (length in the vertical direction Z) of the convex portions 612, 612. is configured to be lower than
  • the upper portion 62 is provided with an upper recess portion 621 facing the lower recess portion 611 when combined with the bottom portion 61, and insertion holes 622 and 622 through which the projections 612 and 612 can be inserted.
  • the upper recessed portion 621 is a groove formed by recessing the center portion of the bottom surface of the upper portion 62 along the longitudinal direction L. When the bottom portion 61 and the upper portion 62 are combined, the upper recessed portion 621 and the lower recessed portion 611 are formed. The slit coating 22a can be sandwiched and held.
  • the insertion hole 622 is a columnar through hole penetrating the upper portion 62 along the vertical direction Z, and is provided at a position facing the convex portions 612 and 612 when the bottom portion 61 and the upper portion 62 are combined. ing. Note that the inner diameter of the insertion hole 622 is substantially the same as the outer diameter of the projection 612 .
  • the first fixing member 60 configured in this way has the slit coating 22a moved toward the tip side in the semi-stripping step s1, and the slit coating 22a is arranged in the lower arrangement concave portion 611 (FIG. 10(a)), and by inserting the protrusions 612, 612 into the insertion holes 622, 622, the upper portion 62 can be assembled from above the bottom portion 61 (see FIG. 10(b)).
  • the upper end portions of the projections 612, 612 made of thermoplastic resin are deformed into a disc shape, and the bottom portion 61 and the bottom portion 61 are deformed into a disc shape.
  • the upper part 62 can be fixed (see FIG. 10(d)).
  • the plurality of slit coverings 22a can be sandwiched between the lower arrangement recess 611 and the upper arrangement recess 621, and the plurality of slit coverings 22a can be integrally held. Therefore, like the resin cover 50, the first fixing member 60 can fix the plurality of terminal conductors 21a.
  • the insulating coating 22 on the distal end side of the coated electric wire 20 is cut, and the first fixing member 60 is attached to the slit coating 22a shifted to the distal end side by a predetermined length along the longitudinal direction L, and the terminal conductor 21a is formed.
  • the first fixing member 60 is directly attached to the exposed conductor 21 by cutting the insulating coating 22 on the tip side of the coated wire 20 and removing it from the tip portion of the conductor 21 to attach the terminal
  • the conductor 21a may be fixed.
  • a plurality of terminal conductors 21a may be fixed by a second fixing member 70 instead of the resin cover 50 or the first fixing member 60.
  • the second fixing member 70 is composed of a base portion 71 , a moving portion 72 movable in the vertical direction Z with respect to the base portion 71 , and an upper portion 73 arranged above the moving portion 72 .
  • the base portion 71 is a substantially prismatic body configured in a rectangular shape in plan view.
  • a pair of struts 712, 712 are provided.
  • the lower placement recess 711 is a groove formed by recessing the central portion of the upper surface along the longitudinal direction L, and is configured so that a plurality of slit coatings 22a can be placed.
  • the pillars 712 are substantially cylindrical bodies erected on the upper surface of the base portion 71 , and are provided in pairs in the width direction W with the lower arrangement concave portion 711 interposed therebetween.
  • the upper end of the support 712 is fixed to the bottom surface of the upper portion 73 .
  • the moving portion 72 is a substantially prismatic body configured in a rectangular shape in plan view. Insertion holes 722 and 722 through which the 712 can be inserted are provided.
  • the upper recessed portion 721 is a groove formed by recessing the central portion of the bottom of the moving portion 72 along the longitudinal direction L, and the lower recessed portion 711 and the base portion 71 and the moving portion 72 are combined together. , a plurality of slit coatings 22a can be sandwiched and held.
  • the insertion hole 722 is a columnar through hole penetrating the moving part 72 along the up-down direction Z, and the struts 712, 712 are inserted therethrough.
  • the upper part 73 is a substantially prismatic body configured in a rectangular shape in plan view to which the upper end of the post 712 is fixed. and a screw hole 732 for
  • the operation part 731 is a cylindrical body having a screw thread on its outer peripheral surface. can be moved to A driving portion 733 is provided at the upper end of the operating portion 731 .
  • the screw hole 732 is configured to be able to be screwed with the operating portion 731 passing through the central portion of the upper portion 73, and the operating portion 731 is moved along the vertical direction Z by rotating the operating portion 731 with the driving portion 733. be able to.
  • the plurality of slit coatings 22a are arranged in the lower arrangement concave portion 711 by moving the insulating coating 22 on the tip side toward the tip side in the semi-stripping step s1. (See FIG. 11A).
  • the moving portion 72 can be assembled from above the base portion 71 (see FIG. 11A). See FIG. 11(b)).
  • the plurality of slit coverings 22a can be sandwiched between the lower arrangement recess 711 and the upper arrangement recess 721, and the plurality of slit coverings 22a can be integrally held. Therefore, like the resin cover 50, the second fixing member 70 can fix the plurality of terminal conductors 21a.
  • the insulating coating 22 on the distal end side of the covered electric wire 20 is cut, and the second fixing member 70 is attached to the slit coating 22a shifted by a predetermined length along the longitudinal direction L toward the distal end side to form the terminal conductor 21a.
  • the insulating coating 22 on the tip side of the coated wire 20 is cut and removed from the tip portion of the conductor 21, and the second fixing member 70 is directly assembled to the exposed conductor 21 to attach the terminal
  • the conductor 21a may be fixed.
  • a tape fixing device 80 is used to fix the end portion of the slit covering 22a with a tape T which is an adhesive tape, thereby fixing the plurality of terminal conductors 21a.
  • a tape fixing device 80 for attaching the tape T to the tip portion of the insulating coating 22 includes a tape holding portion 81 for holding the tape T so that the main surface of the tape T faces the longitudinal direction L, and a cutting portion 82 for cutting the tape T. , 82 and an attaching portion 83 for attaching the tape T to the slit covering 22a.
  • the tape holding portion 81 holds one end of the tape T so that the adhesive surface of the main surface of the tape T faces the base end side in the longitudinal direction L.
  • the cutting unit 82 is a housing configured to be movable along the width direction W, and includes a cutter for cutting the tape T in the width direction W. As shown in FIG. Note that, as shown in FIG. 12A, two cutting portions 82 are arranged in the vertical direction Z with the slit covering 22a interposed therebetween.
  • the pasting portion 83 is a housing configured to be movable along the longitudinal direction L, and includes a tip accommodation portion 831 that can accommodate the tip of the slit covering 22a, and a folding portion that folds the top and bottom ends of the cut tape T. 832 are provided.
  • the tip receiving portion 831 is a concave portion formed in the central portion of the attaching portion 83 in substantially the same shape as the tip portions of the plurality of slit coverings 22a, and is provided so that the base end side in the longitudinal direction L is open. .
  • the folded portions 832 , 832 are cuts formed along the longitudinal direction L above and below the tip accommodation portion 831 and are configured to be slightly thicker than the thickness of the tape T. As shown in FIG.
  • the tape T is held by the tape holding portion 81 so that the contact surface of the tape T faces the base end side in the longitudinal direction L, and the tip of the slit covering 22a is brought into contact with the contact surface of the tape T.
  • the cutting portions 82, 82 are moved along the width direction W to cut the upper and lower portions of the slit covering 22a of the tape T with the cutting portions 82, 82, and the sticking portion 83 is move it to the side.
  • the tip portion of the slit covering 22a with the tape T attached to the tip is accommodated in the tip accommodating portion 831, and the tape T is attached to both end portions in the width direction W of the slit covering 22a, the upper surface side, and the lower surface side. Further, by guiding a portion of the tape T to the folded portions 832, 832, the contact surfaces of the tape T can be attached to each other above and below the slit covering 22a.
  • the tape T can be attached to the tip portion of the slit covering 22a, and the plurality of slit coverings 22a can be integrally held. Therefore, as with the resin cover 50, the plurality of terminal conductors 21a can be fixed with the tape T (see FIG. 12(b)).
  • the insulating coating 22 on the tip side of the coated electric wire 20 is cut, and a tape T is attached to the slit coating 22a shifted to the tip side by a predetermined length along the longitudinal direction L to fix the terminal conductor 21a.
  • the insulating coating 22 on the tip side of the covered wire 20 is cut and removed from the tip portion of the conductor 21, and the tape T is directly attached to the exposed conductor 21 to fix the terminal conductor 21a.
  • the ultraviolet curable resin B is applied to the slit coating 22a from the tip of the resin coating device G (see FIG. 13(a)), and the ultraviolet curable resin is irradiated with ultraviolet UV from the ultraviolet irradiation device Y.
  • the terminal conductor 21a can also be fixed by irradiating B (see FIG. 13(b)).
  • the tip portions of the plurality of slit coverings 22a can be fixed with the ultraviolet curable resin B, so that the plurality of slit coverings 22a can be integrally held. Therefore, like the resin cover 50, a plurality of terminal conductors 21a can be fixed.
  • the insulating coating 22 on the tip side of the coated electric wire 20 is cut, and the slit coating 22a shifted to the tip side by a predetermined length along the longitudinal direction L is coated with an ultraviolet curable resin B and irradiated with ultraviolet rays.
  • Ultraviolet UV is irradiated from the device Y.
  • the insulation coating 22 on the tip side of the coated wire 20 is cut and the exposed conductor 21 is removed from the tip portion of the conductor 21.
  • B may be applied and ultraviolet rays UV may be irradiated from the ultraviolet irradiation device Y.
  • the insulating coating 22 is made of a thermoplastic resin which is a melt hardening material, and the tip end side of the terminal conductor 21a in the plurality of slit coatings 22a shifted toward the tip side is fixed by welding. , the terminal conductor 21a may be fixed.
  • a method for welding and fixing the slit covering 22a will be briefly described below with reference to FIG.
  • Heating devices 90, 90 capable of heating opposing surfaces 91, 91 facing the slit coating 22a are arranged above and below the portion where the slit 21 is not inserted (see FIG. 14(a)).
  • the heating devices 90, 90 are moved in the vertical direction Z so that the heated opposing surfaces 91, 91 approach the slit coating 22a, and the opposing surfaces 91, 91 are brought into contact with the slit coating 22a. are pressed against the slit covering 22a for a predetermined time (see FIG. 14(b)). Thereby, the slit coating 22a in contact with the facing surfaces 91, 91 of the heating devices 90, 90 can be melted.
  • the welded and fixed insulating coating 22 is made of a melt-hardening material, and before the fixing step s3, the insulating coating 22 for the length of the exposed conductor of the coated wire 20 is applied to the base end side of the terminal conductor 21a.
  • a semi-stripping step s1 is performed to cut off the insulating coating 22 and shift to the tip side, and in a fixing step s3, the tip side of the terminal conductors 21a of the plurality of insulating coatings 22 shifted to the tip side may be welded and fixed.
  • the process necessary for exposing the terminal conductor 21a to be joined is performed in the semi-stripping process s1, and the semi-stripping process s1 is part of the fixing process s3.
  • the work in the fixing step s3 can be reduced. Thereby, the manufacturing efficiency of the conductor-bonded electric wire 1 can be improved.
  • the terminal conductor 21a is fixed by using the insulating coating 22 that is discarded after exposing the terminal conductor 21a, the terminal conductor 21a can be efficiently bundled and fixed without using a separate member, and the waste can be effectively used. can be utilized. Furthermore, since the insulating coating 22 removed in the removing step s5 is welded and fixed, fine wastes are not scattered.
  • the tip portion of the insulating coating 22 is moved toward the tip side in the longitudinal direction L so as to cover the tip portion of the conductor 21.
  • the slit coating 22a may be removed from the tip portion of the conductor 21.
  • the tip portion of the conductor 21 (the terminal conductor 21a) may be fixed by attaching the resin cover 50 or the like to the tip portion of the conductor 21 from which the slit coating 22a has been removed.
  • the resin cover 50, the first fixing member 60, and the like are used as fixing members for fixing the plurality of terminal conductors 21a.
  • a metallic material may be used to cover and fix the bundled terminal conductors 21a, or a chemical to be applied to or immersed in the terminal conductors 21a may be used.
  • the fixing member may be removed by cutting the terminal conductor 21a that is not connected, or only the fixing member may be removed. Furthermore, in the removing step s5, the fixing member may be removed by dissolving the unconnected terminal conductor 21a on the tip side of the terminal conductor joint portion 11 or on the tip side of the terminal conductor joint portion 11.
  • movement of the bundle of the bonded wires 10 and the covered wires 20 between the wire arrangement device 30 and the wire connection device 40 and between the wire connection device 40 and the cutting device having the cutting tool D is , may be moved by an automatic transport device such as a robot, or may be carried by a person.
  • the bundles of the joint wires 10 and the covered wires 20 may be moved by an automatic transport device only between specific devices, and carried by a person between other devices.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Processing Of Terminals (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
PCT/JP2022/012811 2021-03-23 2022-03-18 電線接続方法、接合電線、電線固定装置及び接合電線製造装置 Ceased WO2022202704A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2023509146A JP7803929B2 (ja) 2021-03-23 2022-03-18 電線接続方法、接合電線、電線固定装置及び接合電線製造装置
CN202280021735.5A CN116998066A (zh) 2021-03-23 2022-03-18 电线连接方法、接合电线、电线固定装置以及接合电线制造装置
EP22775491.8A EP4318810B1 (en) 2021-03-23 2022-03-18 Electric cable connecting method, joined electric cable, electric cable fixing device, and joined electric cable manufacturing device
US18/471,772 US20240014640A1 (en) 2021-03-23 2023-09-21 Electric cable connection method, joined electric cable, electric cable fixing device, and joined electric cable production device

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JP2021-048844 2021-03-23
JP2021048844 2021-03-23

Related Child Applications (1)

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US18/471,772 Continuation US20240014640A1 (en) 2021-03-23 2023-09-21 Electric cable connection method, joined electric cable, electric cable fixing device, and joined electric cable production device

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JPWO2022202704A1 (https=) 2022-09-29
EP4318810A1 (en) 2024-02-07
US20240014640A1 (en) 2024-01-11
JP7803929B2 (ja) 2026-01-21
EP4318810A4 (en) 2024-10-02
CN116998066A (zh) 2023-11-03

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