WO2013088991A1 - Electrical wire connection structure and electrical wire connection method - Google Patents

Electrical wire connection structure and electrical wire connection method Download PDF

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Publication number
WO2013088991A1
WO2013088991A1 PCT/JP2012/081321 JP2012081321W WO2013088991A1 WO 2013088991 A1 WO2013088991 A1 WO 2013088991A1 JP 2012081321 W JP2012081321 W JP 2012081321W WO 2013088991 A1 WO2013088991 A1 WO 2013088991A1
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WO
WIPO (PCT)
Prior art keywords
wire
core wire
case
core
electric
Prior art date
Application number
PCT/JP2012/081321
Other languages
French (fr)
Japanese (ja)
Inventor
武史 相澤
悟史 森川
義裕 内山
和亜希 武田
貴志 外崎
Original Assignee
株式会社オートネットワーク技術研究所
住友電装株式会社
住友電気工業株式会社
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Application filed by 株式会社オートネットワーク技術研究所, 住友電装株式会社, 住友電気工業株式会社 filed Critical 株式会社オートネットワーク技術研究所
Publication of WO2013088991A1 publication Critical patent/WO2013088991A1/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
    • 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
    • H01R4/183—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 for cylindrical elongated bodies, e.g. cables having circular cross-section
    • H01R4/184—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 for cylindrical elongated bodies, e.g. cables having circular cross-section comprising a U-shaped wire-receiving portion
    • H01R4/185—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 for cylindrical elongated bodies, e.g. cables having circular cross-section comprising a U-shaped wire-receiving portion combined with a U-shaped insulation-receiving portion
    • 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
    • H01R4/58—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 characterised by the form or material of the contacting members
    • H01R4/62—Connections between conductors of different materials; Connections between or with aluminium or steel-core aluminium conductors
    • 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
    • H01R4/70—Insulation of 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
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
    • H01R11/09—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations being identical
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/28—End pieces consisting of a ferrule or sleeve

Definitions

  • the present invention relates to a wire connection structure and a wire connection method.
  • the thing of patent document 1 is known as an electric wire connection structure which connects the 1st electric wire which has a 1st core wire, and the 2nd electric wire which has a 2nd core wire.
  • This is formed by electrically connecting the first core wire and the second core wire by ultrasonic welding.
  • the connecting portion where the first core wire and the second core wire are connected is covered with, for example, a heat shrinkable tube.
  • This invention is completed based on the above situations, and provides the electric wire connection structure and electric wire connection method by which it was suppressed that force was added to the connection part of a 1st electric wire and a 2nd electric wire. With the goal.
  • the present invention is an electric wire connection structure, comprising: a first electric wire having a first core wire; a second electric wire having a second core wire electrically connected to the first core wire; the first core wire; A connecting portion electrically connected to the second core wire; and a case in which the connecting portion is accommodated.
  • connection portion where the first core wire and the second core wire are electrically connected is housed in the case.
  • the connecting portion is protected by the case.
  • problems such as deformation of the connection portion.
  • electrical reliability of the 1st electric wire and 2nd electric wire in a connection part can be improved.
  • the metal constituting the first core wire and the metal constituting the second core wire may be different metals.
  • the first core wire may be made of aluminum or an aluminum alloy
  • the second core wire may be made of copper or a copper alloy.
  • the connection portion includes the first core wire, the second core wire, and a relay member that connects the first core wire and the second core wire, and the relay member includes a metal that forms the first core wire, and One of the metals constituting the second core wire may be made of a different kind of metal, and the other may be made of the same kind of metal.
  • the relay member includes a first wire barrel that is crimped to the first core wire and a second wire barrel that is crimped to the second core wire.
  • a portion where at least one of the first core wire and the second core wire and the relay member are connected is covered with a water stop portion, and water that has entered the case is removed from the case. It is preferable that a drain outlet for discharging the water is formed through the case.
  • the water stop portion is preferably a heat shrinkable tube.
  • the water stop portion is solidified after a portion where at least one of the first core wire and the second core wire is connected to the relay member is surrounded by a liquid synthetic resin.
  • the drain port is preferably formed in the vicinity of a portion where the other of the first core wire and the second core wire is connected to the relay member.
  • a filling space filled with a sealing material that seals a portion where at least one of the first core wire and the second core wire and the relay member are connected is formed in the case. preferable.
  • an inlet for injecting the sealing material is formed in the case so that the filling space communicates with the outside.
  • connection portion is formed by welding, brazing, or cold pressure welding of the first core wire and the second core wire.
  • the case includes a rubber member having an insertion hole through which the connection portion is inserted.
  • a first lip that protrudes inward and closely contacts the outer periphery of the first electric wire, and a second lip that protrudes inward and closely contacts the outer periphery of the second electric wire, Is preferably formed.
  • the case and the rubber member are preferably formed by two-color molding.
  • the case includes a plurality of the connection portions connecting the plurality of first electric wires and the plurality of second electric wires.
  • the present invention is an electric wire connection method, the step of holding a first electric wire provided with a first core wire in a case, the step of holding a second electric wire provided with a second core wire in the case, A step of connecting the first core wire and the second core wire in a state in which one electric wire and the second electric wire are held in the case.
  • the first core wire and the second core wire can be transported by holding the first core wire and the second core wire in the case and then carrying the case in the subsequent steps.
  • the working efficiency in the electric wire connection process can be improved.
  • the 1st core wire and the 2nd core wire are connected in the state where the 1st core wire and the 2nd core wire were hold
  • the following embodiments are preferable.
  • a step of holding a conductive relay member in the case, a step of connecting the first core wire and the relay member, and a step of connecting the second core wire and the relay member. It is preferable to carry out.
  • the relay member includes a first wire barrel that is crimped to the first core wire and a second wire barrel that is crimped to the second core wire, and the first wire is attached to the first core wire. It is preferable to execute the step of crimping the barrel and the step of crimping the second wire barrel to the second core wire.
  • an electric wire connection structure and an electric wire connection method in which force is prevented from being applied to the connection portion between the first electric wire and the second electric wire.
  • FIG. 1 is a partially cutaway cross-sectional view showing a wire connection structure according to Embodiment 1 of the present invention.
  • FIG. 2 is a cross-sectional view showing a wire connection structure according to Embodiment 2 of the present invention.
  • FIG. 3 is a cross-sectional view showing a wire connection structure according to Embodiment 3 of the present invention.
  • FIG. 4 is a perspective view showing a case according to the third embodiment.
  • FIG. 5 is a perspective view showing a wire connection structure according to the third embodiment.
  • Embodiment 1 of the present invention will be described with reference to FIG.
  • the present embodiment is an electric wire connection structure 14 that connects a first electric wire 11 having a first core wire 10 and a second electric wire 13 having a second core wire 12.
  • the 1st electric wire 11 and the 2nd electric wire 13 are mounted in vehicles (not shown), such as a car, an electric car, and a hybrid car, for example.
  • a connecting portion 15 to which the first core wire 10 and the second core wire 12 are connected is accommodated in a case 16.
  • the left side in FIG. 1 is the front side
  • the right side is the rear side.
  • a plurality (two in this embodiment) of connecting portions 15 are accommodated in the case 16 made of synthetic resin.
  • a plurality (two in this embodiment) of first electric wires 11 and a plurality (two in this embodiment) of second electric wires 13 are led out from the case 16 through the wall portion of the case 16. Yes.
  • the first electric wire 11 is led out from the rear wall of the case 16, and the second electric wire 13 is led out from the front wall of the case 16 to the front.
  • the first electric wire 11 includes a metal first core wire 10 and a first insulating coating 17 made of an insulating synthetic resin that surrounds the outer periphery of the first core wire 10.
  • the first core wire 10 is formed by twisting a plurality of first strands 18.
  • the first core wire 10 may be a single core wire.
  • a metal which comprises the 1st core wire 10 arbitrary metals can be suitably selected as needed, such as aluminum, aluminum alloy, copper, copper alloy, iron, iron alloy.
  • the first core wire 10 is made of aluminum or an aluminum alloy.
  • the second electric wire 13 includes a metal second core wire 12 and a second insulating coating 19 made of an insulating synthetic resin that surrounds the outer periphery of the second core wire 12.
  • the second core wire 12 is formed by twisting a plurality of second strands 20 together.
  • the second core wire 12 may be a single core wire.
  • a metal which comprises the 2nd core wire 12 arbitrary metals, such as aluminum, aluminum alloy, copper, copper alloy, iron, iron alloy, can be selected suitably.
  • the second core wire 12 is made of copper or a copper alloy.
  • a terminal 21 is connected to the front end portion of the second electric wire 13 led forward from the case 16.
  • the terminal 21 is formed by pressing a metal plate material into a predetermined shape.
  • any metal such as copper, copper alloy, aluminum, aluminum alloy, iron, iron alloy, or the like can be appropriately selected as necessary.
  • the terminal 21 is made of copper or a copper alloy.
  • a plating layer may be formed on the surface of the terminal 21.
  • any metal such as tin, solder, nickel, chromium, zinc, silver, gold, or the like can be appropriately selected as necessary.
  • tin can be suitably used as the metal constituting the plating layer.
  • the outer periphery of the second core wire 12 exposed from the end of the second insulating coating 19 is crimped so that the wire barrel 22 of the terminal 21 is wound around. Thereby, the 2nd electric wire 13 and the terminal 21 are electrically connected.
  • the terminal 21 is formed with an insulation barrel 23 that extends backward from the wire barrel 22 and is crimped so as to be wound around the outer periphery of the second insulating coating 19 of the second electric wire 13.
  • the wire barrel 22 and the insulation barrel 23 have a so-called open barrel structure.
  • the terminal 21 is formed with a connecting cylinder portion 24 that extends forward from the wire barrel 22 and is connected to a counterpart terminal (not shown).
  • the connection cylinder part 24 in this embodiment has comprised the rectangular cylinder shape extended in the front-back direction.
  • the shape of the part connected with the other party terminal may be formed in the male tab shape, may be formed in plate shape, and can be made into arbitrary shapes as needed.
  • the terminal 21 is accommodated in a connector housing 25 made of synthetic resin.
  • a second electric wire 13 is led out from the connector housing 25.
  • the connector housing 25 is formed with an opening (not shown) for fitting the mating terminal opened forward.
  • the connection portion 15 includes a first core wire 10, a second core wire 12, and a relay member 26 that electrically connects the first core wire 10 and the second core wire 12.
  • the relay member 26 is formed by pressing a metal plate material into a predetermined shape.
  • a metal which comprises the relay member 26 arbitrary metals, such as copper, copper alloy, aluminum, aluminum alloy, iron, and an iron alloy, can be selected suitably as needed.
  • the relay member 26 is made of copper or a copper alloy.
  • a plating layer may be formed on the surface of the relay member 26.
  • any metal such as tin, solder, nickel, chromium, zinc, silver, gold, or the like can be appropriately selected as necessary.
  • tin can be suitably used.
  • the first core wire 10 is made of aluminum or an aluminum alloy
  • the second core wire 12 is made of copper or a copper alloy
  • the relay member 26 is made of copper or a copper alloy. That is, in this embodiment, the 1st core wire 10 and the relay member 26 consist of a dissimilar metal, and the 2nd core wire 12 and the relay member 26 consist of the same kind of metal.
  • a dissimilar metal means a metal with a different ionization tendency.
  • the same kind of metal refers to a metal having substantially the same ionization tendency.
  • the case where the ionization tendency is substantially the same includes the case where the ionization tendency is the same, and also includes the case where the ionization tendency can be regarded as substantially the same because they are close to each other even if they are different.
  • the relay member 26 includes a first wire barrel 27 that is crimped to the first core wire 10.
  • the first wire barrel 27 is an open barrel type, and is crimped so as to be wound around the outer periphery of the first core wire 10.
  • the relay member 26 includes a second wire barrel 28 that is crimped to the second core wire 12 at a position in front of the first wire barrel 27.
  • the second wire barrel 28 is an open barrel type and is crimped so as to be wound around the outer periphery of the second core wire 12.
  • the relay member 26 is formed with a connecting portion 29 that connects the first wire barrel 27 and the second wire barrel 28 in the front-rear direction.
  • the connecting portion 29 has a plate shape extending in the front-rear direction.
  • Water stop 30 A region extending from the outer periphery of the first insulating coating 17 to the connecting portion 29 is covered with a water stop portion 30 made of synthetic resin. Specifically, the first insulating coating 17, the first core wire 10, the first wire barrel 27, and the connecting portion 29 are covered with the water stop portion 30. Thereby, it is suppressed that water adheres to the area
  • FIG. 30 A region extending from the outer periphery of the first insulating coating 17 to the connecting portion 29 is covered with a water stop portion 30 made of synthetic resin. Specifically, the first insulating coating 17, the first core wire 10, the first wire barrel 27, and the connecting portion 29 are covered with the water stop portion 30. Thereby, it is suppressed that water adheres to the area
  • the water stop part 30 consists of a well-known heat shrinkable tube.
  • the water stop part 30 is formed by being heated over a region extending from the first insulating coating 17 to the connecting part 29 and then heated to a predetermined temperature.
  • a heat-shrinkable tube shrinks when heated. Thereby, the inner peripheral surface of the heat-shrinkable tube is brought into close contact with the outer periphery of the region extending from the first insulating coating 17 to the connecting portion 29.
  • drain port 31 On the bottom wall of the case 16, a drain port 31 is formed through the bottom wall for discharging water that has entered the case 16 to the outside of the case 16.
  • the drain port 31 is formed in the vicinity of the second wire barrel 28.
  • the relay member 26 is formed by pressing a metal plate material. Next, the relay member 26 is accommodated in the case 16 and held.
  • the first insulating coating 17 is peeled off at the end of the first electric wire 11 to expose the first core wire 10. Then, the 1st electric wire 11 is accommodated in the case 16 and hold
  • FIG. 1 the water stop part 30 which consists of a heat-shrinkable tube is externally fitted to the 1st insulating coating 17.
  • the second insulating coating 19 is peeled off at the end of the second electric wire 13 to expose the second core wire 12. Thereafter, the second electric wire 13 is accommodated and held in the case 16. At this time, the second core wire 12 is placed on the second wire barrel 28.
  • the step of crimping the first wire barrel 27 to the first core wire 10 is performed in a state where the first electric wire 11, the second electric wire 13, and the relay member 26 are held in the case 16. Moreover, the process of crimping
  • an anvil (not shown) and a crimper (not shown) enter the case 16.
  • An opening may be formed in the case 16.
  • the water stop portion (heat-shrinkable tube) 30 is moved forward from the first insulating coating 17, and the first insulating coating 17, the first core wire 10, and the connecting portion 29 are covered by the water stopping portion 30. Then, the water stop part 30 is contracted by heating to a predetermined temperature.
  • connection structure between the first electric wire 11 and the second electric wire 13 is completed.
  • the terminal 21 is crimped to the end of the second electric wire 13 led out from the case 16 by a known method.
  • the terminal 21 is accommodated in the connector housing 25 by a known method.
  • connection portion 15 in which the first core wire 10 and the second core wire 12 are electrically connected is accommodated in the case 16.
  • the connecting portion 15 is protected by the case 16.
  • the electrical reliability of the 1st electric wire 11 and the 2nd electric wire 13 in the connection part 15 can be improved.
  • the metal which comprises the 1st core wire 10, and the metal which comprises the 2nd core wire 12 are dissimilar metals
  • the 1st core wire 10 consists of aluminum or an aluminum alloy
  • the 2nd core wire 12 is comprised. Consists of copper or a copper alloy.
  • connection portion 15 between the first core wire 10 and the second core wire 12 is accommodated in the case 16.
  • the connection part 15 since it can suppress that water adheres to the connection part 15, it can suppress that the 1st core wire 10 or the 2nd core wire 12 elutes by electrolytic corrosion.
  • connection part 15 consists of the 1st core wire 10, the 2nd core wire 12, and the relay member 26 which connects the 1st core wire 10 and the 2nd core wire 12, and the relay member 26 is comprised. It consists of copper or a copper alloy. That is, the relay member 26 is made of a metal different from the aluminum or aluminum alloy that is the metal constituting the first core wire 10, and is made of the same kind of metal as the copper or copper alloy that constitutes the second core wire 12. By using the relay member 26, the first core wire 10 and the second core wire 12 made of different metals can be easily connected.
  • the relay member 26 includes the first wire barrel 27 that is crimped to the first core wire 10 and the second wire barrel 28 that is crimped to the second core wire 12.
  • the relay member 26 since the preferred crimping condition is different depending on the metal, when the first core wire 10 and the second core wire 12 are made of different metals, the relay member 26 includes the first wire barrel 27 and the second wire barrel 28. Thus, each wire barrel 22 can be crimped to each core wire under suitable crimping conditions.
  • the first wire barrel 27 to which at least the first core wire 10 and the relay member 26 are connected is covered with the water stop portion 30.
  • the case 16 is formed with a drain port 31 through which the water entering the case 16 is discharged to the outside of the case 16.
  • water that has entered from the opening of the connector housing 25 reaches the second core wire 12 through the wire barrel 22 from the terminal 21, and further from the gap between the second core wire 12 and the second insulating coating 19. Even when it enters the case 16 through the core wire 12, this water can be discharged from the drain port 31.
  • connection part 15 is covered with the water stop part 30, it is suppressed reliably that water adheres to the connection part 15.
  • FIG. As a result, electrolytic corrosion at the connection portion 15 can be reliably suppressed.
  • the water stop part 30 is a heat-shrinkable tube.
  • the water stop part 30 can be formed by the simple method of fitting a heat-shrinkable tube to the connection part 15 and heating it after that.
  • the drain port 31 is formed in the vicinity of the part where the second core wire 12 and the relay member 26 are connected.
  • the second core wire 12 and the relay member 26 are made of the same kind of metal. For this reason, even if water adheres to the connection portion between the second core wire 12 and the relay member 26, electrolytic corrosion does not occur. In this way, by providing the drainage port 31 at the connecting portion between the second core wire 12 and the relay member 26 where no electric corrosion occurs, even when water stays around the drainage port 31, electric corrosion can occur. Can be suppressed.
  • maintained at case 16 is performed.
  • the first core wire 10 and the second core wire 12 in the case 16 the first core wire 10 and the second core wire 12 can be transported by carrying the case 16 in subsequent steps.
  • the working efficiency in the electric wire connection process can be improved.
  • the 1st core wire 10 and the 2nd core wire 12 are connected in the state in which the 1st core wire 10 and the 2nd core wire 12 were hold
  • the step of holding the conductive relay member 26 in the case 16, the step of connecting the first core wire 10 and the relay member 26, the second core wire 12 and the relay member. 26 is connected.
  • the relay member 26 is also held in the case 16 together with the first core wire 10 and the second core wire 12, even when the first core wire 10 and the second core wire 12 are connected using the relay member 26, the wire connecting step. The working efficiency can be improved.
  • the relay member 26 includes a first wire barrel 27 that is crimped to the first core wire 10 and a second wire barrel 28 that is crimped to the second core wire 12.
  • a step of crimping the first wire barrel 27 to the first core wire 10 and a step of crimping the second wire barrel 28 to the second core wire 12 are executed.
  • the 2nd core wire 12 and the 2nd wire barrel 28 can be crimped
  • the 1st core wire 10 and the 2nd core wire 12 consist of a dissimilar metal, the electrical connection reliability of the 1st core wire 10 and the 2nd core wire 12 can be improved.
  • the case 16 accommodates the plurality of connection portions 15 connecting the plurality of first electric wires 11 and the plurality of second electric wires 13. Thereby, compared with the case where the one connection part 15 is accommodated in one case 16, space efficiency can be improved.
  • the case 40 includes a lower case 41 that opens upward, and an upper case 42 that is assembled to the lower case 41 from above and closes the opening of the lower case 41.
  • a first core wire made of at least aluminum or an aluminum alloy is formed by a lower rib 43 projecting upward from the bottom wall of the lower case 41 and an upper rib 44 depending downward from the upper wall of the upper case 42.
  • a filling space 46 is formed which is filled with a sealing material 45 that covers a portion where 10 and a relay member 47 made of copper or a copper alloy are connected.
  • a sealing material 45 a known sealing material 45 such as a synthetic resin or a silicone resin can be used.
  • a material that is liquid when injected into the filling space 46 and is solidified thereafter can be used.
  • the relay member 47 is formed with an open barrel type first insulation barrel 49 that extends backward from the first wire barrel 48 and is crimped so as to be wound around the first insulating coating 17.
  • the relay member 47 is formed with an open barrel type second insulation barrel 51 that extends forward from the second wire barrel 50 and is crimped so as to be wound around the second insulating coating 19.
  • the first insulating coating 17, the first insulation barrel 49, the first core wire 10, and the first wire barrel 48 are covered by the sealing material 45 in order from the rear side.
  • An inlet 52 for injecting the sealing material 45 into the filling space 46 is formed through the upper wall in the upper wall of the upper case 42 so as to communicate the filling space 46 with the outside of the case 40. ing.
  • the portion where the first core wire 10 made of aluminum or aluminum alloy and the relay member 47 made of copper or copper alloy are connected is sealed by being covered with the sealing material 45. .
  • the sealing material 45 it can suppress that water adheres to the 1st core wire 10 and the relay member 47.
  • FIG. it is possible to reliably suppress the occurrence of electrolytic corrosion between the first core wire 10 and the relay member 47.
  • the upper wall of the upper case 42 constituting the case 40 is formed with the injection port 52 through which the sealing material 45 is injected through the filling space 46 and the outside.
  • the sealing material 45 can be easily injected into the filling space 46.
  • the first core wire 10 exposed from the end portion of the first electric wire 11 and the second core wire 12 exposed from the end portion of the second electric wire 13 are, for example, brazing, welding, or cold welding. It connects directly by well-known methods, such as.
  • the brazing includes soldering and brazing.
  • the welding method can be appropriately selected from known methods such as resistance welding, ultrasonic welding, laser welding, and TIG welding.
  • connection portion 60 is a portion where the first core wire 10 exposed from the first insulating coating 17 and the second core wire 12 exposed from the second insulating coating 19 are overlapped and connected. .
  • a rubber member 61 is fitted on the connecting portion 60, and the connecting portion 60 is covered with the rubber member 61.
  • the rubber member 61 has a block shape and includes an insertion hole 62 penetrating in the front-rear direction.
  • the first electric wire 11 and the second electric wire 13 are inserted into the insertion hole 62, and the connection portion 60 is arranged inside the insertion hole 62.
  • a plurality of projects inwardly of the insertion hole 62 at the position near the rear end of the insertion hole 62 and closely contacts the outer periphery of the first insulating coating 17.
  • First lip 63 is formed. When the first lip 63 and the outer periphery of the first insulating coating 17 are in close contact with each other, the first electric wire 11 and the rubber member 61 are sealed in a liquid-tight manner.
  • Second lip 64 is formed. When the second lip 64 and the outer periphery of the second insulating coating 19 are in close contact with each other, the second electric wire 13 and the rubber member 61 are sealed in a liquid-tight manner.
  • connection portion 60 is liquid-tightly sealed by the rubber member 61.
  • the rubber member 61 is integrally formed with the synthetic resin case 65 by two-color molding.
  • the rubber member 61 and the case 65 may be formed as separate members, and the rubber member 61 and the case 65 may be fixed with an adhesive or the like, for example.
  • any method such as screwing can be appropriately selected as necessary.
  • the case 65 includes a lower case 66 and an upper case 68 that is integrally formed with the lower case 66 via a hinge 67.
  • the lower case 66 and the upper case 68 are configured such that a lock portion 69 formed on the upper case 68 and a lock receiving portion (not shown) formed on the lower case 66 are elastically engaged with each other.
  • the upper case 68 is assembled so as to be covered (see FIG. 5).
  • a first insertion groove 70 through which the first electric wire 11 is inserted is formed in the rear wall of the upper case 68. Further, a second insertion groove 71 into which the second electric wire 13 is inserted is formed in the front wall of the upper case 68. In a state where the upper case 68 and the lower case 66 are assembled, the first electric wire 11 and the second electric wire 13 led out from the rubber member 61 are inserted into the first insertion groove 70 and the second insertion groove 71, respectively. Thus, it is derived from the case 65.
  • connection part 60 is formed by directly connecting the first core wire 10 and the second core wire 12 by welding, brazing, or cold welding. Thereby, for example, compared with the case where the 1st core wire 10 and the 2nd core wire 12 are connected via a relay member, a number of parts can be reduced.
  • the case 65 includes the rubber member 61 having the insertion hole 62 through which the connection portion 60 is inserted.
  • the connection portion 60 is liquid-tightly sealed by the rubber member 61.
  • the inner peripheral surface of the insertion hole 62 protrudes inward and closely contacts the outer periphery of the first electric wire 11, and protrudes inward and the second electric wire 13.
  • a second lip 64 that is in close contact with the outer periphery of the first lip 64.
  • the case 66 and the rubber member 61 are formed by two-color molding. Since it is not necessary to provide a separate process for assembling the case 66 and the rubber member 61 integrally, the manufacturing process can be simplified. For example, as compared with the case where the case 66 and the rubber member 61 are bonded by an adhesive, the adhesive application process, the adhesive solidification process, and the like can be omitted. Further, for example, as compared with the case where the case 66 and the rubber member 61 are screwed, the step of screwing the case 66 and the rubber member 61 can be omitted.
  • the first core wire 10, the second core wire 12, and the relay member 26 may all be made of the same kind of metal.
  • the first core wire 10, the second core wire 12, and the relay member 26 may all be made of aluminum or an aluminum alloy.
  • the first core wire 10, the second core wire 12, and the relay member 26 may all be made of copper or a copper alloy.
  • the first core wire 10 and the relay member 26 may be made of aluminum or an aluminum alloy, and the second core wire 12 may be made of copper or a copper alloy.
  • the water stop portion 30 is a region from the first insulating coating 17 to the first core wire 10, the first wire barrel 27, the connecting portion 29, the second wire barrel 28, the second core wire 12, and the second insulating coating 19. It is good also as a structure which covers.
  • the water stop portion 30 may be wound with a synthetic resin tape, or may be solidified after a liquid synthetic resin material is applied to the connection portion 15 so as to surround the connection portion 15. It can be formed using any method according to the above.
  • the sealing material 45 is a region from the first insulating coating 17 to the first core wire 10, the first wire barrel 27, the connecting portion 29, the second wire barrel 28, the second core wire 12, and the second insulating coating 19. It is good also as a structure which covers.

Abstract

The present invention is a connection structure that is of a first electrical wire (11), which is provided with a first core wire (10), and a second electrical wire (13), which is provided with a second core wire (12) electrically connected to the first core wire (10), and that is provided with: a connection section (15) at which the first core wire (10) and the second core wire (12) are electrically connected; and a case (16) at which the connection section (15) is housed. As a result, the connection section (15) is protected by the case (16) even in cases of, for example, bending, pulling, twisting, or other force being applied to both or one of the first electrical wire (11) and the second electrical wire (13). Consequently, it is possible to suppress the occurrence of the problem of the connection section (15) deforming or the like. As a result, it is possible to increase the electrical reliability of the first electrical wire (11) and the second electrical wire (13) at the connection section (15).

Description

電線接続構造及び電線接続方法Wire connection structure and wire connection method
　本発明は、電線接続構造及び電線接続方法に関する。 The present invention relates to a wire connection structure and a wire connection method.
　従来、第１芯線を有する第１電線と、第２芯線を有する第２電線とを接続する電線接続構造として、特許文献１に記載のものが知られている。このものは、第１芯線と、第２芯線とを超音波溶接することにより電気的に接続してなる。第１芯線と第２芯線とが接続された接続部は、例えば熱収縮チューブで覆われている。 Conventionally, the thing of patent document 1 is known as an electric wire connection structure which connects the 1st electric wire which has a 1st core wire, and the 2nd electric wire which has a 2nd core wire. This is formed by electrically connecting the first core wire and the second core wire by ultrasonic welding. The connecting portion where the first core wire and the second core wire are connected is covered with, for example, a heat shrinkable tube.
特開２００９－９７３６号公報JP 2009-9736 A
　しかしながら上記の構成によると、第１電線及び第２電線に対して力が加えられた場合に、第１電線と第２電線との接続部分に力が集中してしまい、接続部が変形することが懸念される。すると、第１電線と第２電線との電気的な接続信頼性が低下するおそれがある。 However, according to said structure, when force is applied with respect to a 1st electric wire and a 2nd electric wire, force will concentrate on the connection part of a 1st electric wire and a 2nd electric wire, and a connection part will deform | transform. Is concerned. Then, there exists a possibility that the electrical connection reliability of a 1st electric wire and a 2nd electric wire may fall.
　本発明は上記のような事情に基づいて完成されたものであって、第１電線と第２電線との接続部に力が加わることが抑制された電線接続構造及び電線接続方法を提供することを目的とする。 This invention is completed based on the above situations, and provides the electric wire connection structure and electric wire connection method by which it was suppressed that force was added to the connection part of a 1st electric wire and a 2nd electric wire. With the goal.
　本発明は、電線接続構造であって、第１芯線を備えた第１電線と、前記第１芯線と電気的に接続された第２芯線を備えた第２電線と、前記第１芯線と前記第２芯線とが電気的に接続された接続部と、前記接続部が収容されたケースと、を備える。 The present invention is an electric wire connection structure, comprising: a first electric wire having a first core wire; a second electric wire having a second core wire electrically connected to the first core wire; the first core wire; A connecting portion electrically connected to the second core wire; and a case in which the connecting portion is accommodated.
　本発明によれば、第１芯線と第２芯線とが電気的に接続された接続部は、ケース内に収容されている。これにより、第１電線及び第２電線の双方又は一方に対して、例えば曲げ、引っ張り、捻れ等の力が加えられた場合でも、接続部はケースにより保護される。この結果、接続部が変形する等の不具合が発生することを抑制できる。これにより、接続部における第１電線と第２電線の電気的信頼性を向上させることができる。 According to the present invention, the connection portion where the first core wire and the second core wire are electrically connected is housed in the case. Thereby, even when a force such as bending, pulling, and twisting is applied to both or one of the first electric wire and the second electric wire, the connecting portion is protected by the case. As a result, it is possible to suppress problems such as deformation of the connection portion. Thereby, the electrical reliability of the 1st electric wire and 2nd electric wire in a connection part can be improved.
　本発明の実施態様としては以下の態様が好ましい。前記第１芯線を構成する金属と、前記第２芯線を構成する金属とは異種の金属であってもよい。 The following embodiments are preferred as embodiments of the present invention. The metal constituting the first core wire and the metal constituting the second core wire may be different metals.
　前記第１芯線がアルミニウム又はアルミニウム合金からなり、前記第２芯線が銅又は銅合金からなる構成としてもよい。 The first core wire may be made of aluminum or an aluminum alloy, and the second core wire may be made of copper or a copper alloy.
　前記接続部は、前記第１芯線と、前記第２芯線と、前記第１芯線及び前記第２芯線を接続する中継部材と、からなり、前記中継部材は、前記第１芯線を構成する金属及び前記第２芯線を構成する金属の一方とは異種の金属からなり、他方とは同種の金属からなる構成としてもよい。 The connection portion includes the first core wire, the second core wire, and a relay member that connects the first core wire and the second core wire, and the relay member includes a metal that forms the first core wire, and One of the metals constituting the second core wire may be made of a different kind of metal, and the other may be made of the same kind of metal.
　前記中継部材は、前記第１芯線に圧着される第１ワイヤーバレルと、前記第２芯線に圧着される第２ワイヤーバレルと、を備える構成とすることが好ましい。 It is preferable that the relay member includes a first wire barrel that is crimped to the first core wire and a second wire barrel that is crimped to the second core wire.
　少なくとも前記第１芯線及び前記第２芯線の一方と、前記中継部材と、が接続された部分は止水部によって覆われており、前記ケースには、前記ケース内に浸入した水を前記ケース外に排出するための排水口が前記ケースを貫通して形成されていることが好ましい。 A portion where at least one of the first core wire and the second core wire and the relay member are connected is covered with a water stop portion, and water that has entered the case is removed from the case. It is preferable that a drain outlet for discharging the water is formed through the case.
　前記止水部は熱収縮チューブであることが好ましい。 The water stop portion is preferably a heat shrinkable tube.
　前記止水部は、少なくとも前記第１芯線及び前記第２芯線の一方と、前記中継部材と、が接続された部分が液状の合成樹脂によって包囲された後に固化されてなる構成が好ましい。 It is preferable that the water stop portion is solidified after a portion where at least one of the first core wire and the second core wire is connected to the relay member is surrounded by a liquid synthetic resin.
　前記排水口は、前記第１芯線及び前記第２芯線の他方と、前記中継部材と、が接続された部分の近傍に形成されていることが好ましい。 The drain port is preferably formed in the vicinity of a portion where the other of the first core wire and the second core wire is connected to the relay member.
　前記ケース内には、少なくとも前記第１芯線及び前記第２芯線の一方と、前記中継部材と、が接続された部分を封止する封止材が充填された充填空間が形成されていることが好ましい。 A filling space filled with a sealing material that seals a portion where at least one of the first core wire and the second core wire and the relay member are connected is formed in the case. preferable.
　前記ケースには、前記充填空間と外部とを連通して前記封止材が注入される注入口が形成されていることが好ましい。 It is preferable that an inlet for injecting the sealing material is formed in the case so that the filling space communicates with the outside.
　前記接続部は、前記第１芯線と前記第２芯線とが溶接、ロウ接、又は冷間圧接されてなることが好ましい。 It is preferable that the connection portion is formed by welding, brazing, or cold pressure welding of the first core wire and the second core wire.
　前記ケースは、前記接続部が挿通される挿通孔を有するゴム部材を備えた構成が好ましい。 It is preferable that the case includes a rubber member having an insertion hole through which the connection portion is inserted.
　前記挿通孔の内周面には、内方に突出すると共に前記第１電線の外周に密着する第１リップと、内方に突出すると共に前記第２電線の外周に密着する第２リップと、が形成されていることが好ましい。 On the inner peripheral surface of the insertion hole, a first lip that protrudes inward and closely contacts the outer periphery of the first electric wire, and a second lip that protrudes inward and closely contacts the outer periphery of the second electric wire, Is preferably formed.
　前記ケースと前記ゴム部材とは二色成形により形成されることが好ましい。 The case and the rubber member are preferably formed by two-color molding.
　前記ケースには、複数の前記第１電線と複数の前記第２電線とを接続した複数の前記接続部が収容されていることが好ましい。 It is preferable that the case includes a plurality of the connection portions connecting the plurality of first electric wires and the plurality of second electric wires.
　また、本発明は、電線接続方法であって、第１芯線を備えた第１電線をケースに保持する工程と、第２芯線を備えた第２電線を前記ケースに保持する工程と、前記第１電線と前記第２電線とが前記ケースに保持された状態で、前記第１芯線及び前記第２芯線を接続する工程と、を実行する。 In addition, the present invention is an electric wire connection method, the step of holding a first electric wire provided with a first core wire in a case, the step of holding a second electric wire provided with a second core wire in the case, A step of connecting the first core wire and the second core wire in a state in which one electric wire and the second electric wire are held in the case.
　本発明によれば、まず、ケース内に第１芯線及び第２芯線を保持することにより、その後の工程においては、ケースを持ち運ぶことにより、第１芯線及び第２芯線を運搬することができる。この結果、電線接続工程における作業効率を向上させることができる。そして、ケースに第１芯線及び第２芯線が保持された状態で、第１芯線と第２芯線とを接続するので、電線接続工程の作業効率を一層向上させることができる。 According to the present invention, the first core wire and the second core wire can be transported by holding the first core wire and the second core wire in the case and then carrying the case in the subsequent steps. As a result, the working efficiency in the electric wire connection process can be improved. And since the 1st core wire and the 2nd core wire are connected in the state where the 1st core wire and the 2nd core wire were hold | maintained at the case, the working efficiency of an electric wire connection process can be improved further.
　本発明の実施態様としては以下の態様が好ましい。
　電線接続工程において、導電性の中継部材を前記ケースに保持する工程と、前記第１芯線と前記中継部材とを接続する工程と、前記第２芯線と前記中継部材とを接続する工程と、を実行することが好ましい。 As embodiments of the present invention, the following embodiments are preferable.
In the wire connecting step, a step of holding a conductive relay member in the case, a step of connecting the first core wire and the relay member, and a step of connecting the second core wire and the relay member. It is preferable to carry out.
　電線接続工程において、前記中継部材は、前記第１芯線に圧着される第１ワイヤーバレルと、前記第２芯線の圧着される第２ワイヤーバレルと、を備え、前記第１芯線に前記第１ワイヤーバレルを圧着する工程と、前記第２芯線に前記第２ワイヤーバレルを圧着する工程と、を実行することが好ましい。 In the electric wire connecting step, the relay member includes a first wire barrel that is crimped to the first core wire and a second wire barrel that is crimped to the second core wire, and the first wire is attached to the first core wire. It is preferable to execute the step of crimping the barrel and the step of crimping the second wire barrel to the second core wire.
　本発明によれば、第１電線と第２電線との接続部に力が加わることが抑制された電線接続構造及び電線接続方法を提供する。 According to the present invention, there are provided an electric wire connection structure and an electric wire connection method in which force is prevented from being applied to the connection portion between the first electric wire and the second electric wire.
図１は本発明の実施形態１に係る電線接続構造を示す一部切欠断面図である。FIG. 1 is a partially cutaway cross-sectional view showing a wire connection structure according to Embodiment 1 of the present invention. 図２は本発明の実施形態２に係る電線接続構造を示す断面図である。FIG. 2 is a cross-sectional view showing a wire connection structure according to Embodiment 2 of the present invention. 図３は本発明の実施形態３に係る電線接続構造を示す断面図である。FIG. 3 is a cross-sectional view showing a wire connection structure according to Embodiment 3 of the present invention. 図４は実施形態３に係るケースを示す斜視図である。FIG. 4 is a perspective view showing a case according to the third embodiment. 図５は実施形態３に係る電線接続構造を示す斜視図である。FIG. 5 is a perspective view showing a wire connection structure according to the third embodiment.
　＜実施形態１＞
　本発明の実施形態１を、図１を参照しつつ説明する。本実施形態は、第１芯線１０を備えた第１電線１１と、第２芯線１２を備えた第２電線１３と、を接続する電線接続構造１４である。第１電線１１及び第２電線１３は、例えば、自動車、電気自動車、ハイブリッド車等の車両（図示せず）に搭載される。第１芯線１０と第２芯線１２とが接続された接続部１５はケース１６内に収容されている。以下の説明においては、図１における左方を前方とし、右方を後方とする。 <Embodiment 1>
Embodiment 1 of the present invention will be described with reference to FIG. The present embodiment is an electric wire connection structure 14 that connects a first electric wire 11 having a first core wire 10 and a second electric wire 13 having a second core wire 12. The 1st electric wire 11 and the 2nd electric wire 13 are mounted in vehicles (not shown), such as a car, an electric car, and a hybrid car, for example. A connecting portion 15 to which the first core wire 10 and the second core wire 12 are connected is accommodated in a case 16. In the following description, the left side in FIG. 1 is the front side, and the right side is the rear side.
（ケース１６）
　合成樹脂製のケース１６の内部には複数（本実施形態では２つ）の接続部１５が収容されている。ケース１６からは、複数（本実施形態では２つ）の第１電線１１と、複数（本実施形態では２つ）の第２電線１３とが、ケース１６の壁部を貫通して導出されている。第１電線１１はケース１６の後壁から後方に導出されており、第２電線１３はケース１６の前壁から前方に導出されている。 (Case 16)
A plurality (two in this embodiment) of connecting portions 15 are accommodated in the case 16 made of synthetic resin. A plurality (two in this embodiment) of first electric wires 11 and a plurality (two in this embodiment) of second electric wires 13 are led out from the case 16 through the wall portion of the case 16. Yes. The first electric wire 11 is led out from the rear wall of the case 16, and the second electric wire 13 is led out from the front wall of the case 16 to the front.
（第１電線１１）
　第１電線１１は、金属製の第１芯線１０と、この第１芯線１０の外周を包囲する絶縁性の合成樹脂からなる第１絶縁被覆１７と、を備える。第１芯線１０は、複数の第１素線１８が撚り合されてなる。なお、第１芯線１０は単芯線としてもよい。第１芯線１０を構成する金属としては、アルミニウム、アルミニウム合金、銅、銅合金、鉄、鉄合金等、必要に応じて任意の金属を適宜に選択できる。本実施形態においては、第１芯線１０は、アルミニウム又はアルミニウム合金からなる。 (First electric wire 11)
The first electric wire 11 includes a metal first core wire 10 and a first insulating coating 17 made of an insulating synthetic resin that surrounds the outer periphery of the first core wire 10. The first core wire 10 is formed by twisting a plurality of first strands 18. The first core wire 10 may be a single core wire. As a metal which comprises the 1st core wire 10, arbitrary metals can be suitably selected as needed, such as aluminum, aluminum alloy, copper, copper alloy, iron, iron alloy. In the present embodiment, the first core wire 10 is made of aluminum or an aluminum alloy.
（第２電線１３）
　第２電線１３は、金属製の第２芯線１２と、この第２芯線１２の外周を包囲する絶縁性の合成樹脂からなる第２絶縁被覆１９と、を備える。第２芯線１２は、複数の第２素線２０が撚り合されてなる。なお、第２芯線１２は単芯線としてもよい。第２芯線１２を構成する金属としては、アルミニウム、アルミニウム合金、銅、銅合金、鉄、鉄合金等、必要に応じて任意の金属を適宜に選択できる。本実施形態においては、第２芯線１２は、銅又は銅合金からなる。 (Second electric wire 13)
The second electric wire 13 includes a metal second core wire 12 and a second insulating coating 19 made of an insulating synthetic resin that surrounds the outer periphery of the second core wire 12. The second core wire 12 is formed by twisting a plurality of second strands 20 together. The second core wire 12 may be a single core wire. As a metal which comprises the 2nd core wire 12, arbitrary metals, such as aluminum, aluminum alloy, copper, copper alloy, iron, iron alloy, can be selected suitably. In the present embodiment, the second core wire 12 is made of copper or a copper alloy.
（端子２１）
　ケース１６から前方に導出された第２電線１３の前端部には、端子２１が接続されている。端子２１は、金属板材を所定の形状にプレス加工してなる。端子２１を構成する金属としては、銅、銅合金、アルミニウム、アルミニウム合金、鉄、鉄合金等、必要に応じて任意の金属を適宜に選択できる。本実施形態においては、端子２１は銅、又は銅合金からなる。端子２１の表面にはメッキ層が形成されていてもよい。メッキ層を構成する金属としては、スズ、はんだ、ニッケル、クロム、亜鉛、銀、金等、必要に応じて任意の金属を適宜に選択できる。メッキ層を構成する金属としては、例えばスズを好適に用いることができる。 (Terminal 21)
A terminal 21 is connected to the front end portion of the second electric wire 13 led forward from the case 16. The terminal 21 is formed by pressing a metal plate material into a predetermined shape. As a metal constituting the terminal 21, any metal such as copper, copper alloy, aluminum, aluminum alloy, iron, iron alloy, or the like can be appropriately selected as necessary. In the present embodiment, the terminal 21 is made of copper or a copper alloy. A plating layer may be formed on the surface of the terminal 21. As a metal constituting the plating layer, any metal such as tin, solder, nickel, chromium, zinc, silver, gold, or the like can be appropriately selected as necessary. As the metal constituting the plating layer, for example, tin can be suitably used.
　第２絶縁被覆１９の端部から露出された第２芯線１２の外周には、端子２１のワイヤーバレル２２が巻き付くように圧着されている。これにより、第２電線１３と端子２１とが電気的に接続されるようになっている。端子２１には、ワイヤーバレル２２から後方に延びると共に第２電線１３の第２絶縁被覆１９の外周に巻き付くように圧着されたインシュレーションバレル２３が形成されている。ワイヤーバレル２２及びインシュレーションバレル２３はいわゆるオープンバレル構造となっている。 The outer periphery of the second core wire 12 exposed from the end of the second insulating coating 19 is crimped so that the wire barrel 22 of the terminal 21 is wound around. Thereby, the 2nd electric wire 13 and the terminal 21 are electrically connected. The terminal 21 is formed with an insulation barrel 23 that extends backward from the wire barrel 22 and is crimped so as to be wound around the outer periphery of the second insulating coating 19 of the second electric wire 13. The wire barrel 22 and the insulation barrel 23 have a so-called open barrel structure.
　端子２１には、ワイヤーバレル２２から前方に延びて、図示しない相手側端子と接続される接続筒部２４が形成されている。本実施形態における接続筒部２４は、前後方向に延びる角筒状をなしている。この接続筒部２４内に相手側端子が挿入されることにより、相手側端子と、接続筒部２４の内部に形成された弾性片（図示せず）とが弾性的に接触するようになっている。これにより、相手側端子と端子２１とが電気的に接続されるようになっている。 The terminal 21 is formed with a connecting cylinder portion 24 that extends forward from the wire barrel 22 and is connected to a counterpart terminal (not shown). The connection cylinder part 24 in this embodiment has comprised the rectangular cylinder shape extended in the front-back direction. By inserting the mating terminal into the connecting tube portion 24, the mating terminal and the elastic piece (not shown) formed inside the connecting tube portion 24 come into elastic contact. Yes. Thereby, the other party terminal and the terminal 21 are electrically connected.
　なお、相手側端子と接続される部分の形状は、雄タブ状に形成されていてもよく、また、板状に形成されていてもよく、必要に応じて任意の形状としうる。 In addition, the shape of the part connected with the other party terminal may be formed in the male tab shape, may be formed in plate shape, and can be made into arbitrary shapes as needed.
　端子２１は合成樹脂製のコネクタハウジング２５の内部に収容されるようになっている。コネクタハウジング２５からは第２電線１３が後方に導出されている。コネクタハウジング２５は、相手側端子が嵌合するための開口部（図示せず）が前方に開口して形成されている。 The terminal 21 is accommodated in a connector housing 25 made of synthetic resin. A second electric wire 13 is led out from the connector housing 25. The connector housing 25 is formed with an opening (not shown) for fitting the mating terminal opened forward.
（中継部材２６）
　接続部１５は、第１芯線１０と、第２芯線１２と、第１芯線１０と第２芯線１２とを電気的に接続する中継部材２６と、からなる。中継部材２６は、金属板材を所定の形状にプレス加工してなる。中継部材２６を構成する金属としては、銅、銅合金、アルミニウム、アルミニウム合金、鉄、鉄合金等、必要に応じて任意の金属を適宜に選択できる。本実施形態においては、中継部材２６は銅又は銅合金からなる。中継部材２６の表面にはメッキ層が形成されていてもよい。メッキ層を構成する金属としては、スズ、はんだ、ニッケル、クロム、亜鉛、銀、金等、必要に応じて任意の金属を適宜に選択できる。メッキ層を構成する金属としては、例えばスズを好適に用いることができる。 (Relay member 26)
The connection portion 15 includes a first core wire 10, a second core wire 12, and a relay member 26 that electrically connects the first core wire 10 and the second core wire 12. The relay member 26 is formed by pressing a metal plate material into a predetermined shape. As a metal which comprises the relay member 26, arbitrary metals, such as copper, copper alloy, aluminum, aluminum alloy, iron, and an iron alloy, can be selected suitably as needed. In the present embodiment, the relay member 26 is made of copper or a copper alloy. A plating layer may be formed on the surface of the relay member 26. As a metal constituting the plating layer, any metal such as tin, solder, nickel, chromium, zinc, silver, gold, or the like can be appropriately selected as necessary. As the metal constituting the plating layer, for example, tin can be suitably used.
　上記したように、第１芯線１０はアルミニウム又はアルミニウム合金からなり、第２芯線１２は銅又は銅合金からなり、中継部材２６は銅又は銅合金からなる。すなわち、本実施形態においては、第１芯線１０と中継部材２６とは異種の金属からなり、第２芯線１２と中継部材２６とは同種の金属からなる。 As described above, the first core wire 10 is made of aluminum or an aluminum alloy, the second core wire 12 is made of copper or a copper alloy, and the relay member 26 is made of copper or a copper alloy. That is, in this embodiment, the 1st core wire 10 and the relay member 26 consist of a dissimilar metal, and the 2nd core wire 12 and the relay member 26 consist of the same kind of metal.
　なお、異種の金属とは、イオン化傾向が異なる金属をいう。また、同種の金属とは、イオン化傾向が実質的に同じ金属をいう。イオン化傾向が実質的に同じとは、イオン化傾向が同一である場合を含むと共に、異なる場合であってもイオン化傾向が近接しているために略同じとみなせる場合を含む。 In addition, a dissimilar metal means a metal with a different ionization tendency. The same kind of metal refers to a metal having substantially the same ionization tendency. The case where the ionization tendency is substantially the same includes the case where the ionization tendency is the same, and also includes the case where the ionization tendency can be regarded as substantially the same because they are close to each other even if they are different.
　中継部材２６は、第１芯線１０に圧着される第１ワイヤーバレル２７を備える。第１ワイヤーバレル２７は、オープンバレルタイプであって、第１芯線１０の外周に巻き付くようにして圧着される。 The relay member 26 includes a first wire barrel 27 that is crimped to the first core wire 10. The first wire barrel 27 is an open barrel type, and is crimped so as to be wound around the outer periphery of the first core wire 10.
　また、中継部材２６は、第１ワイヤーバレル２７の前方の位置に、第２芯線１２に圧着される第２ワイヤーバレル２８を備える。第２ワイヤーバレル２８は、オープンバレルタイプであって、第２芯線１２の外周に巻き付くようにして圧着される。 Further, the relay member 26 includes a second wire barrel 28 that is crimped to the second core wire 12 at a position in front of the first wire barrel 27. The second wire barrel 28 is an open barrel type and is crimped so as to be wound around the outer periphery of the second core wire 12.
　更に、中継部材２６には、第１ワイヤーバレル２７と第２ワイヤーバレル２８とを前後方向に連結する連結部２９が形成されている。連結部２９は前後方向に延びる板状をなしている。 Further, the relay member 26 is formed with a connecting portion 29 that connects the first wire barrel 27 and the second wire barrel 28 in the front-rear direction. The connecting portion 29 has a plate shape extending in the front-rear direction.
（止水部３０）
　第１絶縁被覆１７の外周から前方に向かって、連結部２９に至る領域は、合成樹脂製の止水部３０によって覆われている。詳細には、第１絶縁被覆１７、第１芯線１０、第１ワイヤーバレル２７、及び連結部２９が、止水部３０によって覆われている。これにより、止水部３０によって覆われた領域に水が付着することが抑制されるようになっている。 (Water stop 30)
A region extending from the outer periphery of the first insulating coating 17 to the connecting portion 29 is covered with a water stop portion 30 made of synthetic resin. Specifically, the first insulating coating 17, the first core wire 10, the first wire barrel 27, and the connecting portion 29 are covered with the water stop portion 30. Thereby, it is suppressed that water adheres to the area | region covered with the water stop part 30. FIG.
　止水部３０は、公知の熱収縮チューブからなる。止水部３０は、第１絶縁被覆１７から連結部２９に至る領域に亘って外嵌された後に、所定の温度に加熱されることにより形成される。熱収縮チューブは加熱されることにより収縮する。これにより、熱収縮チューブの内周面が、第１絶縁被覆１７から連結部２９に至る領域の外周に密着するようになっている。 The water stop part 30 consists of a well-known heat shrinkable tube. The water stop part 30 is formed by being heated over a region extending from the first insulating coating 17 to the connecting part 29 and then heated to a predetermined temperature. A heat-shrinkable tube shrinks when heated. Thereby, the inner peripheral surface of the heat-shrinkable tube is brought into close contact with the outer periphery of the region extending from the first insulating coating 17 to the connecting portion 29.
（排水口３１）
　ケース１６の底壁には、ケース１６内に浸入した水をケース１６外に排出するための排水口３１が底壁を貫通して形成されている。この排水口３１は、第２ワイヤーバレル２８の近傍に形成されている。 (Drain port 31)
On the bottom wall of the case 16, a drain port 31 is formed through the bottom wall for discharging water that has entered the case 16 to the outside of the case 16. The drain port 31 is formed in the vicinity of the second wire barrel 28.
（本実施形態の製造工程）
　続いて、本実施形態の製造工程の一例について説明する。製造工程については、本実施形態に限定されない。 (Manufacturing process of this embodiment)
Then, an example of the manufacturing process of this embodiment is demonstrated. The manufacturing process is not limited to this embodiment.
　まず、金属板材をプレス加工することにより中継部材２６を形成する。次いで、ケース１６内に中継部材２６を収容して、保持する。 First, the relay member 26 is formed by pressing a metal plate material. Next, the relay member 26 is accommodated in the case 16 and held.
　次に、第１電線１１の端部において第１絶縁被覆１７を剥がして第１芯線１０を露出させる。その後、第１電線１１をケース１６内に収容して保持する。このとき、第１芯線１０を第１ワイヤーバレル２７の上に載置する。このとき、第１絶縁被覆１７には熱収縮チューブからなる止水部３０を外嵌させておく。 Next, the first insulating coating 17 is peeled off at the end of the first electric wire 11 to expose the first core wire 10. Then, the 1st electric wire 11 is accommodated in the case 16 and hold | maintained. At this time, the first core wire 10 is placed on the first wire barrel 27. At this time, the water stop part 30 which consists of a heat-shrinkable tube is externally fitted to the 1st insulating coating 17. FIG.
　同様にして、第２電線１３の端部において第２絶縁被覆１９を剥がして第２芯線１２を露出させる。その後、第２電線１３をケース１６内に収容して保持する。このとき、第２芯線１２を第２ワイヤーバレル２８の上に載置する。 Similarly, the second insulating coating 19 is peeled off at the end of the second electric wire 13 to expose the second core wire 12. Thereafter, the second electric wire 13 is accommodated and held in the case 16. At this time, the second core wire 12 is placed on the second wire barrel 28.
　ケース１６内に第１電線１１、第２電線１３、及び中継部材２６が保持された状態で、第１ワイヤーバレル２７を第１芯線１０に圧着する工程を実行する。また、第２ワイヤーバレル２８を第２芯線１２に圧着する工程を実行する。これらの工程は、同時に実行してもよく、また、順次に実行してもよい。順次に実行する場合には、いずれの工程を先に実行してもよい。 The step of crimping the first wire barrel 27 to the first core wire 10 is performed in a state where the first electric wire 11, the second electric wire 13, and the relay member 26 are held in the case 16. Moreover, the process of crimping | bonding the 2nd wire barrel 28 to the 2nd core wire 12 is performed. These steps may be performed simultaneously or sequentially. When performing sequentially, any process may be performed first.
　第１ワイヤーバレル２７を第１芯線１０に圧着する工程、及び第２ワイヤーバレル２８を第２芯線１２に圧着する工程を実行する際に、図示しないアンビル、及び図示しないクリンパがケース１６内に進入するための開口を、ケース１６に形成してもよい。 When performing the step of crimping the first wire barrel 27 to the first core wire 10 and the step of crimping the second wire barrel 28 to the second core wire 12, an anvil (not shown) and a crimper (not shown) enter the case 16. An opening may be formed in the case 16.
　続いて、止水部（熱収縮チューブ）３０を第１絶縁被覆１７から前方に移動させ、止水部３０によって第１絶縁被覆１７、第１芯線１０、及び連結部２９を覆う。その後、所定の温度に加熱して、止水部３０を収縮させる。 Subsequently, the water stop portion (heat-shrinkable tube) 30 is moved forward from the first insulating coating 17, and the first insulating coating 17, the first core wire 10, and the connecting portion 29 are covered by the water stopping portion 30. Then, the water stop part 30 is contracted by heating to a predetermined temperature.
　これにより、第１電線１１と第２電線１３との接続構造が完成する。 Thereby, the connection structure between the first electric wire 11 and the second electric wire 13 is completed.
　その後、ケース１６から導出された第２電線１３の端部に、公知の手法により端子２１を圧着する。次いで、端子２１を公知の手法によりコネクタハウジング２５内に収容する。 Thereafter, the terminal 21 is crimped to the end of the second electric wire 13 led out from the case 16 by a known method. Next, the terminal 21 is accommodated in the connector housing 25 by a known method.
（本実施形態の作用、効果）
　続いて、本実施形態の作用、効果について説明する。本実施形態によれば、第１芯線１０と第２芯線１２とが電気的に接続された接続部１５は、ケース１６内に収容されている。これにより、第１電線１１及び第２電線１３の双方又は一方に対して、例えば曲げ、引っ張り、捻れ等の力が加えられた場合でも、接続部１５はケース１６により保護される。この結果、接続部１５が変形する等の不具合が発生することを抑制できる。これにより、接続部１５における第１電線１１と第２電線１３の電気的信頼性を向上させることができる。 (Operation and effect of this embodiment)
Then, the effect | action and effect of this embodiment are demonstrated. According to the present embodiment, the connection portion 15 in which the first core wire 10 and the second core wire 12 are electrically connected is accommodated in the case 16. Thereby, even when a force such as bending, pulling, and twisting is applied to both or one of the first electric wire 11 and the second electric wire 13, the connecting portion 15 is protected by the case 16. As a result, it is possible to suppress the occurrence of problems such as the deformation of the connecting portion 15. Thereby, the electrical reliability of the 1st electric wire 11 and the 2nd electric wire 13 in the connection part 15 can be improved.
　また、本実施形態によれば、第１芯線１０を構成する金属と、第２芯線１２を構成する金属は異種の金属であり、第１芯線１０はアルミニウム又はアルミニウム合金からなり、第２芯線１２は銅又は銅合金からなる。 Moreover, according to this embodiment, the metal which comprises the 1st core wire 10, and the metal which comprises the 2nd core wire 12 are dissimilar metals, the 1st core wire 10 consists of aluminum or an aluminum alloy, and the 2nd core wire 12 is comprised. Consists of copper or a copper alloy.
　異種の金属、すなわち、イオン化傾向の異なる金属同士が接触した部分に水が付着すると、異種の金属間で電池が形成され、イオン化傾向の大きな金属が陽イオンとして溶出する、いわゆる電食が発生する場合がある。本実施形態の場合、アルミニウム又はアルミニウム合金のイオン化傾向は、銅又は銅合金よりも大きいので、アルミニウム又はアルミニウム合金からなる第１芯線１０が溶出することが懸念される。 When water adheres to the part where different kinds of metals, that is, metals with different ionization tendency contact each other, a battery is formed between the different kinds of metals, and so-called galvanic corrosion occurs in which a metal with a large ionization tendency is eluted as a cation. There is a case. In the case of this embodiment, since the ionization tendency of aluminum or aluminum alloy is larger than that of copper or copper alloy, there is a concern that the first core wire 10 made of aluminum or aluminum alloy may be eluted.
　上記の点に鑑み、本実施形態においては、第１芯線１０と第２芯線１２の接続部１５はケース１６内に収容されている。これにより、接続部１５に水が付着することを抑制できるので、第１芯線１０又は第２芯線１２が電食により溶出することを抑制できる。 In view of the above points, in the present embodiment, the connection portion 15 between the first core wire 10 and the second core wire 12 is accommodated in the case 16. Thereby, since it can suppress that water adheres to the connection part 15, it can suppress that the 1st core wire 10 or the 2nd core wire 12 elutes by electrolytic corrosion.
　また、本実施形態によれば、接続部１５は、第１芯線１０と、第２芯線１２と、第１芯線１０及び第２芯線１２を接続する中継部材２６と、からなり、中継部材２６は銅又は銅合金からなる。つまり、中継部材２６は、第１芯線１０を構成する金属であるアルミニウム又はアルミニウム合金とは異種の金属からなり、第２芯線１２を構成する銅又は銅合金とは同種の金属からなる。この中継部材２６を用いることにより、異種の金属からなる第１芯線１０と第２芯線１２とを容易に接続することができる。 Moreover, according to this embodiment, the connection part 15 consists of the 1st core wire 10, the 2nd core wire 12, and the relay member 26 which connects the 1st core wire 10 and the 2nd core wire 12, and the relay member 26 is comprised. It consists of copper or a copper alloy. That is, the relay member 26 is made of a metal different from the aluminum or aluminum alloy that is the metal constituting the first core wire 10, and is made of the same kind of metal as the copper or copper alloy that constitutes the second core wire 12. By using the relay member 26, the first core wire 10 and the second core wire 12 made of different metals can be easily connected.
　また、本実施形態によれば、中継部材２６は、第１芯線１０に圧着される第１ワイヤーバレル２７と、第２芯線１２に圧着される第２ワイヤーバレル２８と、を備える。これにより、第１ワイヤーバレル２７を第１芯線１０に圧着すると共に、第２ワイヤーバレル２８を第２芯線１２に圧着するという簡易な手法により、第１芯線１０と第２芯線１２とを接続することができる。 Further, according to the present embodiment, the relay member 26 includes the first wire barrel 27 that is crimped to the first core wire 10 and the second wire barrel 28 that is crimped to the second core wire 12. Thereby, while crimping | bonding the 1st wire barrel 27 to the 1st core wire 10, the 1st core wire 10 and the 2nd core wire 12 are connected by the simple method of crimping | bonding the 2nd wire barrel 28 to the 2nd core wire 12. be able to.
　また、好適な圧着条件は金属によりことなるので、第１芯線１０と第２芯線１２とが異種の金属からなる場合において、中継部材２６が第１ワイヤーバレル２７と第２ワイヤーバレル２８とを備えることにより、各芯線に対して、好適な圧着条件で、各ワイヤーバレル２２を圧着することができる。 In addition, since the preferred crimping condition is different depending on the metal, when the first core wire 10 and the second core wire 12 are made of different metals, the relay member 26 includes the first wire barrel 27 and the second wire barrel 28. Thus, each wire barrel 22 can be crimped to each core wire under suitable crimping conditions.
　また、本実施形態によれば、少なくとも第１芯線１０と、中継部材２６と、が接続された第１ワイヤーバレル２７は止水部３０によって覆われている。更に、ケース１６には、ケース１６内に浸入した水をケース１６外に排出するための排水口３１がケース１６を貫通して形成されている。これにより、コネクタハウジング２５の開口部から浸入した水が、端子２１からワイヤーバレル２２を伝って第２芯線１２に到達し、更に、第２芯線１２と第２絶縁被覆１９との隙間から第２芯線１２を伝って、ケース１６内に浸入した場合でも、この水を排水口３１から排出することができる。 Further, according to the present embodiment, the first wire barrel 27 to which at least the first core wire 10 and the relay member 26 are connected is covered with the water stop portion 30. Further, the case 16 is formed with a drain port 31 through which the water entering the case 16 is discharged to the outside of the case 16. As a result, water that has entered from the opening of the connector housing 25 reaches the second core wire 12 through the wire barrel 22 from the terminal 21, and further from the gap between the second core wire 12 and the second insulating coating 19. Even when it enters the case 16 through the core wire 12, this water can be discharged from the drain port 31.
　一方、接続部１５は止水部３０によって覆われているので、接続部１５に水が付着することが確実に抑制される。この結果、接続部１５における電食を確実に抑制できる。 On the other hand, since the connection part 15 is covered with the water stop part 30, it is suppressed reliably that water adheres to the connection part 15. FIG. As a result, electrolytic corrosion at the connection portion 15 can be reliably suppressed.
　更に、本実施形態においては、止水部３０は熱収縮チューブである。これにより、接続部１５に熱収縮チューブを外嵌し、その後に加熱するという簡易な手法により止水部３０を形成することができる。 Furthermore, in this embodiment, the water stop part 30 is a heat-shrinkable tube. Thereby, the water stop part 30 can be formed by the simple method of fitting a heat-shrinkable tube to the connection part 15 and heating it after that.
　また、本実施形態においては、排水口３１は、第２芯線１２と、中継部材２６と、が接続された部分の近傍に形成されている。上記したように、第２芯線１２と中継部材２６とは同種の金属からなる。このため、第２芯線１２と中継部材２６との接続部分に水が付着しても、電食は発生しない。このように、電食が発生しない第２芯線１２と中継部材２６との接続部分に排水口３１を設けることにより、水が排水口３１の周囲に滞留した場合でも、電食が発生することを抑制することができる。 Moreover, in this embodiment, the drain port 31 is formed in the vicinity of the part where the second core wire 12 and the relay member 26 are connected. As described above, the second core wire 12 and the relay member 26 are made of the same kind of metal. For this reason, even if water adheres to the connection portion between the second core wire 12 and the relay member 26, electrolytic corrosion does not occur. In this way, by providing the drainage port 31 at the connecting portion between the second core wire 12 and the relay member 26 where no electric corrosion occurs, even when water stays around the drainage port 31, electric corrosion can occur. Can be suppressed.
　また、本実施形態に係る電線接続方法は、第１芯線１０を備えた第１電線１１をケース１６に保持する工程と、第２芯線１２を備えた第２電線１３をケース１６に保持する工程と、第１電線１１と第２電線１３とがケース１６に保持された状態で、第１芯線１０及び第２芯線１２を接続する工程と、を実行する。まず、ケース１６内に第１芯線１０及び第２芯線１２を保持することにより、その後の工程においては、ケース１６を持ち運ぶことにより、第１芯線１０及び第２芯線１２を運搬することができる。この結果、電線接続工程における作業効率を向上させることができる。そして、ケース１６に第１芯線１０及び第２芯線１２が保持された状態で、第１芯線１０と第２芯線１２とを接続するので、電線接続工程の作業効率を一層向上させることができる。 Further, in the electric wire connection method according to the present embodiment, the step of holding the first electric wire 11 provided with the first core wire 10 in the case 16 and the step of holding the second electric wire 13 provided with the second core wire 12 in the case 16. And the process of connecting the 1st core wire 10 and the 2nd core wire 12 in the state in which the 1st electric wire 11 and the 2nd electric wire 13 were hold | maintained at case 16 is performed. First, by holding the first core wire 10 and the second core wire 12 in the case 16, the first core wire 10 and the second core wire 12 can be transported by carrying the case 16 in subsequent steps. As a result, the working efficiency in the electric wire connection process can be improved. And since the 1st core wire 10 and the 2nd core wire 12 are connected in the state in which the 1st core wire 10 and the 2nd core wire 12 were hold | maintained at case 16, the working efficiency of an electric wire connection process can be improved further.
　更に、本実施形態に係る電線接続方法においては、導電性の中継部材２６をケース１６に保持する工程と、第１芯線１０と中継部材２６とを接続する工程と、第２芯線１２と中継部材２６とを接続する工程と、を実行する。これにより、第１芯線１０及び第２芯線１２と共に中継部材２６をもケース１６に保持するので、第１芯線１０と第２芯線１２とを中継部材２６を用いて接続する場合でも、電線接続工程の作業効率を向上させることができる。 Furthermore, in the electric wire connection method according to the present embodiment, the step of holding the conductive relay member 26 in the case 16, the step of connecting the first core wire 10 and the relay member 26, the second core wire 12 and the relay member. 26 is connected. Thereby, since the relay member 26 is also held in the case 16 together with the first core wire 10 and the second core wire 12, even when the first core wire 10 and the second core wire 12 are connected using the relay member 26, the wire connecting step. The working efficiency can be improved.
　その上、本実施形態に係る電線接続方法においては、中継部材２６は、第１芯線１０に圧着される第１ワイヤーバレル２７と、第２芯線１２の圧着される第２ワイヤーバレル２８と、を備え、第１芯線１０に第１ワイヤーバレル２７を圧着する工程と、第２芯線１２に第２ワイヤーバレル２８を圧着する工程と、を実行する。これにより、第１芯線１０と第１ワイヤーバレル２７とを最適な条件で圧着すると共に、第２芯線１２と第２ワイヤーバレル２８とを最適な条件で圧着することができる。これにより、第１芯線１０と第２芯線１２とが異種の金属からなる場合において、第１芯線１０と第２芯線１２との電気的な接続信頼性を向上させることができる。 In addition, in the electric wire connection method according to the present embodiment, the relay member 26 includes a first wire barrel 27 that is crimped to the first core wire 10 and a second wire barrel 28 that is crimped to the second core wire 12. A step of crimping the first wire barrel 27 to the first core wire 10 and a step of crimping the second wire barrel 28 to the second core wire 12 are executed. Thereby, while crimping | bonding the 1st core wire 10 and the 1st wire barrel 27 on optimal conditions, the 2nd core wire 12 and the 2nd wire barrel 28 can be crimped | bonded on optimal conditions. Thereby, when the 1st core wire 10 and the 2nd core wire 12 consist of a dissimilar metal, the electrical connection reliability of the 1st core wire 10 and the 2nd core wire 12 can be improved.
　また、本実施形態によれば、ケース１６には、複数の第１電線１１と複数の第２電線１３とを接続した複数の接続部１５が収容されている。これにより、１つのケース１６に１つの接続部１５が収容される場合に比べて、スペース効率を向上させることができる。 Further, according to the present embodiment, the case 16 accommodates the plurality of connection portions 15 connecting the plurality of first electric wires 11 and the plurality of second electric wires 13. Thereby, compared with the case where the one connection part 15 is accommodated in one case 16, space efficiency can be improved.
　＜実施形態２＞
　次に、本発明の実施形態２を、図２を参照しつつ説明する。本実施形態においては、ケース４０は、上方に開口するロアケース４１と、このロアケース４１に上方から組み付けられてロアケース４１の開口を塞ぐアッパーケース４２と、を備える。 <Embodiment 2>
Next, Embodiment 2 of the present invention will be described with reference to FIG. In the present embodiment, the case 40 includes a lower case 41 that opens upward, and an upper case 42 that is assembled to the lower case 41 from above and closes the opening of the lower case 41.
　ケース４０内には、ロアケース４１の底壁から上方に突出する下側リブ４３と、アッパーケース４２の上壁から下方に垂下する上側リブ４４と、によって、少なくともアルミニウム又はアルミニウム合金からなる第１芯線１０と銅又は銅合金からなる中継部材４７とが接続された部分を覆う封止材４５が充填された充填空間４６が形成されている。封止材４５は、合成樹脂、シリコーン樹脂等、公知の封止材４５を用いることができる。封止材４５は、充填空間４６内に注入される際には液体であって、その後に固化される材料を用いることができる。 In the case 40, a first core wire made of at least aluminum or an aluminum alloy is formed by a lower rib 43 projecting upward from the bottom wall of the lower case 41 and an upper rib 44 depending downward from the upper wall of the upper case 42. A filling space 46 is formed which is filled with a sealing material 45 that covers a portion where 10 and a relay member 47 made of copper or a copper alloy are connected. As the sealing material 45, a known sealing material 45 such as a synthetic resin or a silicone resin can be used. As the sealing material 45, a material that is liquid when injected into the filling space 46 and is solidified thereafter can be used.
　中継部材４７には、第１ワイヤーバレル４８から後方に延びると共に第１絶縁被覆１７に巻き付くように圧着されたオープンバレルタイプの第１インシュレーションバレル４９が形成されている。 The relay member 47 is formed with an open barrel type first insulation barrel 49 that extends backward from the first wire barrel 48 and is crimped so as to be wound around the first insulating coating 17.
　また、中継部材４７には、第２ワイヤーバレル５０から前方に延びると共に第２絶縁被覆１９に巻き付くように圧着されたオープンバレルタイプの第２インシュレーションバレル５１が形成されている。 Also, the relay member 47 is formed with an open barrel type second insulation barrel 51 that extends forward from the second wire barrel 50 and is crimped so as to be wound around the second insulating coating 19.
　本実施形態においては、封止材４５によって、後ろ側から順に、第１絶縁被覆１７、第１インシュレーションバレル４９、第１芯線１０、第１ワイヤーバレル４８が覆われている。 In this embodiment, the first insulating coating 17, the first insulation barrel 49, the first core wire 10, and the first wire barrel 48 are covered by the sealing material 45 in order from the rear side.
　アッパーケース４２の上壁には、充填空間４６とケース４０の外部とを連通して、充填空間４６内に封止材４５を注入するための注入口５２が、上壁を貫通して形成されている。 An inlet 52 for injecting the sealing material 45 into the filling space 46 is formed through the upper wall in the upper wall of the upper case 42 so as to communicate the filling space 46 with the outside of the case 40. ing.
　上記以外の構成については、実施形態１と略同様なので、同一部材については同一符号を付し、重複する説明を省略する。 Since the configuration other than the above is substantially the same as that of the first embodiment, the same members are denoted by the same reference numerals, and redundant description is omitted.
　本実施形態によれば、アルミニウム又はアルミニウム合金からなる第１芯線１０と、銅又は銅合金からなる中継部材４７と、が接続された部分は封止材４５によって覆われることにより封止されている。これにより、第１芯線１０と中継部材４７とに水が付着することを抑制できる。この結果、第１芯線１０と中継部材４７との間で電食が発生することを確実に抑制することができる。 According to the present embodiment, the portion where the first core wire 10 made of aluminum or aluminum alloy and the relay member 47 made of copper or copper alloy are connected is sealed by being covered with the sealing material 45. . Thereby, it can suppress that water adheres to the 1st core wire 10 and the relay member 47. FIG. As a result, it is possible to reliably suppress the occurrence of electrolytic corrosion between the first core wire 10 and the relay member 47.
　また、本実施形態によれば、ケース４０を構成するアッパーケース４２の上壁には、充填空間４６と外部とを連通して封止材４５が注入される注入口５２が形成されている。これにより、充填空間４６内に、封止材４５を容易に注入することができる。 Further, according to the present embodiment, the upper wall of the upper case 42 constituting the case 40 is formed with the injection port 52 through which the sealing material 45 is injected through the filling space 46 and the outside. Thereby, the sealing material 45 can be easily injected into the filling space 46.
　＜実施形態３＞
　次に、本発明の実施形態３、を図３ないし図５を参照しつつ説明する。 <Embodiment 3>
Next, Embodiment 3 of the present invention will be described with reference to FIGS.
　図３に示すように、第１電線１１の端部から露出した第１芯線１０と、第２電線１３の端部から露出した第２芯線１２とは、例えば、ロウ接、溶接、冷間圧接等の公知の手法により直接に接続されている。なお、ロウ接は、はんだ付けとロウ付けとを含む。また、第１芯線１０と第２芯線１２との接続方法としては、必要に応じて、任意の手法から適宜に選択できる。例えば、溶接方法としては、抵抗溶接、超音波溶接、レーザー溶接、ＴＩＧ溶接等、公知の手法から適宜に選択できる。 As shown in FIG. 3, the first core wire 10 exposed from the end portion of the first electric wire 11 and the second core wire 12 exposed from the end portion of the second electric wire 13 are, for example, brazing, welding, or cold welding. It connects directly by well-known methods, such as. The brazing includes soldering and brazing. Moreover, as a connection method of the 1st core wire 10 and the 2nd core wire 12, it can select suitably from arbitrary methods as needed. For example, the welding method can be appropriately selected from known methods such as resistance welding, ultrasonic welding, laser welding, and TIG welding.
　本実施形態においては、第１絶縁被覆１７から露出した第１芯線１０と、第２絶縁被覆１９から露出して第２芯線１２と、が重ねられて接続された部分が接続部６０とされる。 In the present embodiment, the connection portion 60 is a portion where the first core wire 10 exposed from the first insulating coating 17 and the second core wire 12 exposed from the second insulating coating 19 are overlapped and connected. .
　この接続部６０にはゴム部材６１が外嵌されており、このゴム部材６１によって接続部６０が覆われている。 A rubber member 61 is fitted on the connecting portion 60, and the connecting portion 60 is covered with the rubber member 61.
　図３及び図４に示すように、ゴム部材６１はブロック状をなしており、前後方向に貫通された挿通孔６２を備える。この挿通孔６２に第１電線１１及び第２電線１３が挿通されて、挿通孔６２の内部に接続部６０が配されるようになっている。 As shown in FIGS. 3 and 4, the rubber member 61 has a block shape and includes an insertion hole 62 penetrating in the front-rear direction. The first electric wire 11 and the second electric wire 13 are inserted into the insertion hole 62, and the connection portion 60 is arranged inside the insertion hole 62.
　挿通孔６２の内周面には、挿通孔６２の後端部寄りの位置に、挿通孔６２の内方に突出して、第１絶縁被覆１７の外周に密着する複数（本実施形態では２つ）の第１リップ６３が形成されている。この第１リップ６３と、第１絶縁被覆１７の外周とが密着することにより、第１電線１１とゴム部材６１とが液密にシールされる。 A plurality of (in this embodiment, two in the present embodiment) projects inwardly of the insertion hole 62 at the position near the rear end of the insertion hole 62 and closely contacts the outer periphery of the first insulating coating 17. ) First lip 63 is formed. When the first lip 63 and the outer periphery of the first insulating coating 17 are in close contact with each other, the first electric wire 11 and the rubber member 61 are sealed in a liquid-tight manner.
　また、挿通孔６２の内周面には、挿通孔６２の前端部寄りの位置に、挿通孔６２の内方に突出して、第２絶縁被覆１９の外周に密着する複数（本実施形態では２つ）の第２リップ６４が形成されている。この第２リップ６４と、第２絶縁被覆１９の外周とが密着することにより、第２電線１３とゴム部材６１とが液密にシールされる。 In addition, a plurality of (in the present embodiment, 2 in the present embodiment) protrudes inward of the insertion hole 62 on the inner peripheral surface of the insertion hole 62 at a position near the front end of the insertion hole 62 and closely contacts the outer periphery of the second insulating coating 19. ) Second lip 64 is formed. When the second lip 64 and the outer periphery of the second insulating coating 19 are in close contact with each other, the second electric wire 13 and the rubber member 61 are sealed in a liquid-tight manner.
　上記の構成により、接続部６０は、ゴム部材６１によって液密にシールされるようになっている。 With the above configuration, the connection portion 60 is liquid-tightly sealed by the rubber member 61.
　図４に示すように、ゴム部材６１は、合成樹脂製のケース６５に対して二色成形により一体に形成されている。なお、ゴム部材６１とケース６５とを別部材に形成して、例えば接着剤等によりゴム部材６１とケース６５とを固定する構成としてもよい。ゴム部材６１とケース６５とを固定する手段としては、ネジ止め等必要に応じて任意の手法を適宜に選択できる。 As shown in FIG. 4, the rubber member 61 is integrally formed with the synthetic resin case 65 by two-color molding. The rubber member 61 and the case 65 may be formed as separate members, and the rubber member 61 and the case 65 may be fixed with an adhesive or the like, for example. As a means for fixing the rubber member 61 and the case 65, any method such as screwing can be appropriately selected as necessary.
　ケース６５は、ロアケース６６と、このロアケース６６に対してヒンジ６７を介して一体に形成されたアッパーケース６８と、を備える。ロアケース６６と、アッパーケース６８とは、アッパーケース６８に形成されたロック部６９と、ロアケース６６に形成されたロック受け部（図示せず）とが弾性的に係合することにより、ロアケース６６の上方がアッパーケース６８によって覆われるようにして組み付けられる（図５参照）。 The case 65 includes a lower case 66 and an upper case 68 that is integrally formed with the lower case 66 via a hinge 67. The lower case 66 and the upper case 68 are configured such that a lock portion 69 formed on the upper case 68 and a lock receiving portion (not shown) formed on the lower case 66 are elastically engaged with each other. The upper case 68 is assembled so as to be covered (see FIG. 5).
　アッパーケース６８の後壁には第１電線１１が挿通される第１挿通溝７０が形成されている。また、アッパーケース６８の前壁には第２電線１３が挿通される第２挿通溝７１が形成されている。アッパーケース６８とロアケース６６とを組み付けた状態で、ゴム部材６１から導出された第１電線１１と第２電線１３は、それぞれ、第１挿通溝７０と、第２挿通溝７１の内部に挿通されて、ケース６５から導出されるようになっている。 A first insertion groove 70 through which the first electric wire 11 is inserted is formed in the rear wall of the upper case 68. Further, a second insertion groove 71 into which the second electric wire 13 is inserted is formed in the front wall of the upper case 68. In a state where the upper case 68 and the lower case 66 are assembled, the first electric wire 11 and the second electric wire 13 led out from the rubber member 61 are inserted into the first insertion groove 70 and the second insertion groove 71, respectively. Thus, it is derived from the case 65.
（本実施形態の作用、効果）
　続いて、本実施形態の作用、効果について説明する。本実施形態によれば、接続部６０は、第１芯線１０と第２芯線１２とが溶接、ロウ接、又は冷間圧接により、直接に接続されてなる。これにより、例えば、第１芯線１０と第２芯線１２とを中継部材を介して接続する場合に比べて、部品点数を削減することができる。 (Operation and effect of this embodiment)
Then, the effect | action and effect of this embodiment are demonstrated. According to this embodiment, the connection part 60 is formed by directly connecting the first core wire 10 and the second core wire 12 by welding, brazing, or cold welding. Thereby, for example, compared with the case where the 1st core wire 10 and the 2nd core wire 12 are connected via a relay member, a number of parts can be reduced.
　また、本実施形態によれば、ケース６５は、接続部６０が挿通される挿通孔６２を有するゴム部材６１を備える。このゴム部材６１により接続部６０は液密にシールされる。 Further, according to the present embodiment, the case 65 includes the rubber member 61 having the insertion hole 62 through which the connection portion 60 is inserted. The connection portion 60 is liquid-tightly sealed by the rubber member 61.
　更に、本実施形態によれば、挿通孔６２の内周面には、内方に突出すると共に第１電線１１の外周に密着する第１リップ６３と、内方に突出すると共に第２電線１３の外周に密着する第２リップ６４と、が形成されている。これにより、第１電線１１とゴム部材６１との間が液密にシールされると共に、第２電線１３とゴム部材６１との間も液密にシールされる。この結果、挿通孔６２内に配された接続部６０が確実にシールされる。これにより、第１芯線１０と第２芯線１２とが異種の金属からなる場合に、接続部６０において電食が発生することを抑制できる。 Furthermore, according to the present embodiment, the inner peripheral surface of the insertion hole 62 protrudes inward and closely contacts the outer periphery of the first electric wire 11, and protrudes inward and the second electric wire 13. A second lip 64 that is in close contact with the outer periphery of the first lip 64. Thereby, the space between the first electric wire 11 and the rubber member 61 is liquid-tightly sealed, and the space between the second electric wire 13 and the rubber member 61 is also liquid-tightly sealed. As a result, the connection portion 60 disposed in the insertion hole 62 is reliably sealed. Thereby, when the 1st core wire 10 and the 2nd core wire 12 consist of a dissimilar metal, it can suppress that an electric corrosion generate | occur | produces in the connection part 60. FIG.
　また、本実施形態によれば、ケース６６とゴム部材６１とは二色成形により形成される。ケース６６とゴム部材６１とを一体に組み付ける工程を別途設けなくてもよいので、製造工程を簡略化できる。例えば、ケース６６とゴム部材６１とを接着剤によって接着する場合と比較すると、接着剤の塗布工程、接着剤の固化工程等を省略できる。また、例えば、ケース６６とゴム部材６１とをネジ止めする場合と比較すると、ケース６６とゴム部材６１とをネジ止めする工程を省略できる。 Further, according to the present embodiment, the case 66 and the rubber member 61 are formed by two-color molding. Since it is not necessary to provide a separate process for assembling the case 66 and the rubber member 61 integrally, the manufacturing process can be simplified. For example, as compared with the case where the case 66 and the rubber member 61 are bonded by an adhesive, the adhesive application process, the adhesive solidification process, and the like can be omitted. Further, for example, as compared with the case where the case 66 and the rubber member 61 are screwed, the step of screwing the case 66 and the rubber member 61 can be omitted.
　＜他の実施形態＞
　本発明は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような実施形態も本発明の技術的範囲に含まれる。
　（１）ケース内には、３つ以上の複数の接続部が収容される構成としてもよい。 <Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) It is good also as a structure in which three or more several connection parts are accommodated in a case.
　（２）第１芯線１０、第２芯線１２、及び中継部材２６が全て同種の金属からなる構成としてもよい。例えば、第１芯線１０、第２芯線１２、及び中継部材２６が全てアルミニウム又はアルミニウム合金からなる構成としてもよい。また、第１芯線１０、第２芯線１２、及び中継部材２６が全て銅又は銅合金からなる構成としてもよい。 (2) The first core wire 10, the second core wire 12, and the relay member 26 may all be made of the same kind of metal. For example, the first core wire 10, the second core wire 12, and the relay member 26 may all be made of aluminum or an aluminum alloy. Further, the first core wire 10, the second core wire 12, and the relay member 26 may all be made of copper or a copper alloy.
　（３）第１芯線１０と中継部材２６とがアルミニウム又はアルミニウム合金からなり、第２芯線１２が銅又は銅合金からなる構成としてもよい。 (3) The first core wire 10 and the relay member 26 may be made of aluminum or an aluminum alloy, and the second core wire 12 may be made of copper or a copper alloy.
　（４）止水部３０は、第１絶縁被覆１７から、第１芯線１０、第１ワイヤーバレル２７、連結部２９、第２ワイヤーバレル２８、第２芯線１２、第２絶縁被覆１９に至る領域を覆う構成としてもよい。 (4) The water stop portion 30 is a region from the first insulating coating 17 to the first core wire 10, the first wire barrel 27, the connecting portion 29, the second wire barrel 28, the second core wire 12, and the second insulating coating 19. It is good also as a structure which covers.
　（５）止水部３０は、合成樹脂製のテープを巻回してもよく、また、液状の合成樹脂材を接続部１５に塗布して接続部１５を包囲した後に固化させてもよく、必要に応じて任意の手法を用いて形成することができる。 (5) The water stop portion 30 may be wound with a synthetic resin tape, or may be solidified after a liquid synthetic resin material is applied to the connection portion 15 so as to surround the connection portion 15. It can be formed using any method according to the above.
　（６）封止材４５は、第１絶縁被覆１７から、第１芯線１０、第１ワイヤーバレル２７、連結部２９、第２ワイヤーバレル２８、第２芯線１２、第２絶縁被覆１９に至る領域を覆う構成としてもよい。 (6) The sealing material 45 is a region from the first insulating coating 17 to the first core wire 10, the first wire barrel 27, the connecting portion 29, the second wire barrel 28, the second core wire 12, and the second insulating coating 19. It is good also as a structure which covers.
　１０：第１芯線
　１１：第１電線
　１２：第２芯線
　１３：第２電線
　１４：電線接続構造
　１５：接続部
　１６：ケース
　２６：中継部材
　２７：第１ワイヤーバレル
　２８：第２ワイヤーバレル
　３０：止水部
　３１：排水口
　４５：封止材
　４６：充填空間
　５２：注入口
　６１：ゴム部材
　６２：挿通孔
　６３：第１リップ
　６４：第２リップ 10: 1st core wire 11: 1st electric wire 12: 2nd core wire 13: 2nd electric wire 14: Electric wire connection structure 15: Connection part 16: Case 26: Relay member 27: 1st wire barrel 28: 2nd wire barrel 30: Water stop portion 31: Drain port 45: Sealing material 46: Filling space 52: Injection port 61: Rubber member 62: Insertion hole 63: First lip 64: Second lip

Claims (19)

  1. 　第１芯線を備えた第１電線と、
    　前記第１芯線と電気的に接続された第２芯線を備えた第２電線と、
    　前記第１芯線と前記第２芯線とが電気的に接続された接続部と、
    　前記接続部が収容されたケースと、を備えた電線接続構造。     A first electric wire with a first core wire;
    A second electric wire comprising a second core wire electrically connected to the first core wire;
    A connecting portion in which the first core wire and the second core wire are electrically connected;
    And a case in which the connection portion is accommodated.
  2. 　前記第１芯線を構成する金属と、前記第２芯線を構成する金属とは異種の金属である請求項１に記載の電線接続構造。 The wire connection structure according to claim 1, wherein the metal constituting the first core wire and the metal constituting the second core wire are different metals.
  3. 　前記第１芯線がアルミニウム又はアルミニウム合金からなり、前記第２芯線が銅又は銅合金からなる請求項２に記載の電線接続構造。 The electric wire connection structure according to claim 2, wherein the first core wire is made of aluminum or an aluminum alloy, and the second core wire is made of copper or a copper alloy.
  4. 　前記接続部は、前記第１芯線と、前記第２芯線と、前記第１芯線及び前記第２芯線を接続する中継部材と、からなり、
    　前記中継部材は、前記第１芯線を構成する金属及び前記第２芯線を構成する金属の一方とは異種の金属からなり、他方とは同種の金属からなる請求項２または請求項３に記載の電線接続構造。     The connection portion includes the first core wire, the second core wire, and a relay member that connects the first core wire and the second core wire,
    4. The relay member according to claim 2, wherein one of the metal constituting the first core wire and the metal constituting the second core wire is made of a different metal and the other is made of the same kind of metal. 5. Wire connection structure.
  5. 　前記中継部材は、前記第１芯線に圧着される第１ワイヤーバレルと、前記第２芯線に圧着される第２ワイヤーバレルと、を備える請求項４に記載の電線接続構造。 The wire connection structure according to claim 4, wherein the relay member includes a first wire barrel that is crimped to the first core wire, and a second wire barrel that is crimped to the second core wire.
  6. 　少なくとも前記第１芯線及び前記第２芯線の一方と、前記中継部材と、が接続された部分は止水部によって覆われており、
    　前記ケースには、前記ケース内に浸入した水を前記ケース外に排出するための排水口が前記ケースを貫通して形成されている請求項４または請求項５に記載の電線接続構造。     A portion where at least one of the first core wire and the second core wire and the relay member are connected is covered with a water stop portion,
    The wire connection structure according to claim 4 or 5, wherein a drain outlet for discharging water that has entered the case to the outside of the case is formed through the case.
  7. 　前記止水部は熱収縮チューブである請求項６に記載の電線接続構造。 The electric wire connection structure according to claim 6, wherein the water stop portion is a heat shrinkable tube.
  8. 　前記止水部は、少なくとも前記第１芯線及び前記第２芯線の一方と、前記中継部材と、が接続された部分が液状の合成樹脂によって包囲された後に固化されてなる請求項６に記載の電線接続構造。 The said water stop part is solidified after the part to which at least one of the said 1st core wire and the said 2nd core wire and the said relay member were connected was surrounded by the liquid synthetic resin. Wire connection structure.
  9. 　前記排水口は、前記第１芯線及び前記第２芯線の他方と、前記中継部材と、が接続された部分の近傍に形成されている請求項６ないし請求項８のいずれか一項に記載の電線接続構造。 The said drain outlet is formed in the vicinity of the part to which the other of the said 1st core wire and the said 2nd core wire, and the said relay member were connected. Wire connection structure.
  10. 　前記ケース内には、少なくとも前記第１芯線及び前記第２芯線の一方と、前記中継部材と、が接続された部分を封止する封止材が充填された充填空間が形成されている請求項４ないし請求項９のいずれか一項に記載の電線接続構造。 A filling space filled with a sealing material for sealing a portion where at least one of the first core wire and the second core wire and the relay member are connected is formed in the case. The wire connection structure according to any one of claims 4 to 9.
  11. 　前記ケースには、前記充填空間と外部とを連通して前記封止材が注入される注入口が形成されている請求項１０に記載の電線接続構造。 The electric wire connection structure according to claim 10, wherein the case is formed with an inlet through which the sealing material is injected in communication with the filling space and the outside.
  12. 　前記接続部は、前記第１芯線と前記第２芯線とが溶接、ロウ接、又は冷間圧接されてなる請求項２または請求項３に記載の電線接続構造。 4. The electric wire connection structure according to claim 2 or 3, wherein the connection portion is formed by welding, brazing, or cold welding the first core wire and the second core wire.
  13. 　前記ケースは、前記接続部が挿通される挿通孔を有するゴム部材を備えた請求項１２に記載の電線接続構造。 The electric wire connection structure according to claim 12, wherein the case includes a rubber member having an insertion hole through which the connection portion is inserted.
  14. 　前記挿通孔の内周面には、内方に突出すると共に前記第１電線の外周に密着する第１リップと、内方に突出すると共に前記第２電線の外周に密着する第２リップと、が形成されている請求項１３に記載の電線接続構造。 On the inner peripheral surface of the insertion hole, a first lip that protrudes inward and closely contacts the outer periphery of the first electric wire, and a second lip that protrudes inward and closely contacts the outer periphery of the second electric wire, The wire connection structure according to claim 13, wherein:
  15. 　前記ケースと前記ゴム部材とは二色成形により形成される請求項１３または請求項１４に記載の電線接続構造。 The electric wire connection structure according to claim 13 or 14, wherein the case and the rubber member are formed by two-color molding.
  16. 　前記ケースには、複数の前記第１電線と複数の前記第２電線とを接続した複数の前記接続部が収容されている請求項１ないし請求項１５のいずれか一項に記載の電線接続構造。 The wire connection structure according to any one of claims 1 to 15, wherein the case includes a plurality of the connection portions that connect the plurality of first electric wires and the plurality of second electric wires. .
  17. 　第１芯線を備えた第１電線をケースに保持する工程と、
    　第２芯線を備えた第２電線を前記ケースに保持する工程と、
    　前記第１電線と前記第２電線とが前記ケースに保持された状態で、前記第１芯線及び前記第２芯線を接続する工程と、
    を実行する電線接続方法。     Holding the first electric wire with the first core wire in the case;
    Holding the second electric wire with the second core wire in the case;
    Connecting the first core wire and the second core wire in a state where the first electric wire and the second electric wire are held in the case;
    Perform the wire connection method.
  18. 　導電性の中継部材を前記ケースに保持する工程と、
    　前記第１芯線と前記中継部材とを接続する工程と、
    　前記第２芯線と前記中継部材とを接続する工程と、
    を実行する請求項１７に記載の電線接続方法。     Holding the conductive relay member in the case;
    Connecting the first core wire and the relay member;
    Connecting the second core wire and the relay member;
    The electric wire connection method according to claim 17, wherein:
  19. 　前記中継部材は、前記第１芯線に圧着される第１ワイヤーバレルと、前記第２芯線の圧着される第２ワイヤーバレルと、を備え、
    　前記第１芯線に前記第１ワイヤーバレルを圧着する工程と、
    　前記第２芯線に前記第２ワイヤーバレルを圧着する工程と、
    を実行する請求項１８に記載の電線接続方法。     The relay member includes a first wire barrel that is crimped to the first core wire, and a second wire barrel that is crimped to the second core wire,
    Crimping the first wire barrel to the first core wire;
    Crimping the second wire barrel to the second core wire;
    The electric wire connection method according to claim 18, wherein:
PCT/JP2012/081321 2011-12-12 2012-12-04 Electrical wire connection structure and electrical wire connection method WO2013088991A1 (en)

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JP2015050081A (en) * 2013-09-03 2015-03-16 古河電気工業株式会社 Joint terminal, and structure and method for connecting wire harness
JP6422213B2 (en) * 2014-01-15 2018-11-14 古河電気工業株式会社 Connection terminal and connection structure including the connection terminal
JP6623142B2 (en) * 2016-11-01 2019-12-18 古河電気工業株式会社 Connection structure between aluminum cable and joint member

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