WO2013088992A1 - Relay terminal and connection structure of electrical wire and terminal - Google Patents

Relay terminal and connection structure of electrical wire and terminal Download PDF

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Publication number
WO2013088992A1
WO2013088992A1 PCT/JP2012/081323 JP2012081323W WO2013088992A1 WO 2013088992 A1 WO2013088992 A1 WO 2013088992A1 JP 2012081323 W JP2012081323 W JP 2012081323W WO 2013088992 A1 WO2013088992 A1 WO 2013088992A1
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WIPO (PCT)
Prior art keywords
conductor
crimping portion
relay terminal
electric wire
terminal
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PCT/JP2012/081323
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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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Publication of WO2013088992A1 publication Critical patent/WO2013088992A1/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
    • 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
    • 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

Definitions

  • the present invention relates to a relay terminal and a connection structure between an electric wire and a terminal.
  • Patent Document 1 For a wire harness routed in a vehicle such as an automobile, a copper wire formed by covering a conductor made of copper or a copper alloy having excellent conductivity and strength with an insulating coating has been used (for example, Patent Document 1). See).
  • connectors that connect electrical components and wire harnesses have a housing that supports copper wires, use copper wires as usual only for the portion connected to the connector, and use aluminum wires for other portions. It is considered preferable to reduce the weight.
  • a terminal for connecting the copper wire and the aluminum wire is required.
  • a conductor made of a different metal material such as a conductor made of copper or copper alloy and a conductor made of aluminum or aluminum alloy. Therefore, in order to improve electrical connection reliability, It was necessary to consider strength, electrical conductivity, and the like.
  • This invention was completed based on the above situations, Comprising: It aims at providing the connection terminal of a highly reliable connection terminal with an electric wire, and an electric wire and a terminal with high connection reliability. .
  • the present invention is connected to a first terminal accommodated in a housing and led out from the housing, and a copper electric wire formed by covering a copper or copper alloy conductor with an insulating coating, An exposed conductor disposed on the outside of the housing and connected to an aluminum wire formed by coating a conductor made of aluminum or an aluminum alloy with an insulating coating, and exposed by peeling off the insulating coating at the end of the copper wire.
  • the relay terminal is provided with a first conductor crimping portion that is crimped to the second conductor and a second conductor crimping portion that is crimped to the exposed conductor exposed by peeling off the insulation coating at the end of the aluminum electric wire.
  • the present invention also provides a copper wire that is connected to a first terminal accommodated in the housing and led out from the housing, and is formed by covering a copper or copper alloy conductor with an insulating coating, and is disposed outside the housing.
  • a connection structure of an aluminum wire formed by coating a conductor made of aluminum or aluminum alloy with an insulation coating, and a terminal for connecting the copper wire and the aluminum wire, wherein the terminal is insulation-coated at the end of the copper wire
  • a relay terminal provided with a first conductor crimping portion that is crimped to an exposed conductor exposed by peeling of the second conductor, and a second conductor crimping portion that is crimped to an exposed conductor exposed by peeling of the insulation coating at the end of the aluminum wire, respectively. It is a connection structure of a certain electric wire and terminal.
  • a conductor crimping portion (first conductor crimping portion, second conductor crimping portion) in which a copper wire and an aluminum wire that are accommodated in the housing and led out from the housing are crimped to the exposed conductor of each wire. It is electrically connected by a relay terminal having Therefore, each conductor crimping portion of the relay terminal can be crimped according to the strength and electrical conductivity of each conductor, so that the connection reliability between each electric wire and the terminal can be enhanced. As a result, according to the present invention, it is possible to provide a relay terminal with high connection reliability with an electric wire and an electric wire and terminal connection structure with high connection reliability.
  • the present invention may have the following configurations.
  • the relay terminal includes a first coated crimping portion that is crimped to a covering portion covered with an insulating coating of the copper electric wire, and a second coated crimping portion that is crimped to a covering portion covered with the insulating coating of the aluminum electric wire.
  • Each may be provided. If it is set as such a structure, since each electric wire is connected to a relay terminal by two crimping
  • the first conductor crimping portion and the second conductor crimping portion may be provided with a gap therebetween. Since the conductor to be crimped to the first conductor crimping part is made of copper or copper alloy and the conductor to be crimped to the second conductor crimping part is made of aluminum or aluminum alloy, the metal material of at least one conductor and the conductor crimping part (relay) This is different from the metal material constituting the terminal. If water containing an electrolyte such as salt enters the part that comes into contact with a different metal, there is a concern about the occurrence of electrolytic corrosion.
  • a draining portion may be provided between the first conductor crimping portion and the second conductor crimping portion.
  • the said covering member may be the structure which covers the covering crimping
  • the covering member covers only the conductor crimping portion, there is a possibility that water adhering to the coating crimping portion may enter a portion where the conductor crimping portion and the conductor are in contact with each other through a gap between the covering member and the conductor crimping portion.
  • the water is prevented from adhering to the coated crimping portion when configured as described above, it is possible to reliably prevent water from entering the portion where the conductor crimping portion and the conductor are in contact with each other.
  • the covering member may be formed of a resin mold or a heat shrinkable tube. With such a configuration, the covering member can have a simple configuration.
  • the first conductor crimping portion and the second conductor crimping portion may be an open barrel type. With such a configuration, the terminal shape can be a simple structure.
  • the relay terminal 20 of this embodiment is the terminal 20 which electrically connects the copper electric wire 10 and the aluminum electric wire 15 which are wired and used inside vehicles (not shown), such as a motor vehicle, for example.
  • the copper wire 10 is connected to the first terminal 2 whose front end is accommodated in the housing 1 and led out of the housing 1.
  • the terminal on the rear side led out of the housing 1 of the copper wire 10 is connected to the relay terminal 20.
  • the copper electric wire 10 includes a conductor 11 made of copper or a copper alloy, and an insulating coating 12 formed by coating the outer periphery of the conductor 11 with an insulating synthetic resin.
  • the conductor 11 is formed by twisting a plurality of strands.
  • the conductor 11 is exposed at the front end 11A and the rear end 11B of the copper wire 10 due to the peeling of the insulating coating 12 (exposed conductors 11A and 11B).
  • the first terminal 2 to which the front end of the copper wire 10 is connected is a female terminal, and is formed by pressing a metal plate material into a predetermined shape.
  • a metal which forms the 1st terminal 2 it can select suitably from arbitrary metals as needed, such as copper, a copper alloy, aluminum, an aluminum alloy, iron, and an iron alloy. In this embodiment, copper or a copper alloy is used because it has high conductivity.
  • a plating layer is formed on the surface of the first terminal 2.
  • the metal forming the plating layer include tin, nickel, chromium, zinc, gold, and silver.
  • a tin plating layer having a low contact resistance is formed.
  • a cylindrical terminal connecting portion 3 is formed on the front end side of the first terminal 2 and is formed with an elastic contact piece (not shown) that is electrically connected to a counterpart terminal (not shown).
  • a pair of wire barrel pieces 4 and a pair of insulation barrel pieces 5 connected to the copper electric wire 10 are formed in a portion of the first terminal 2 connected to the rear of the terminal connection portion 3.
  • the pair of wire barrel pieces 4 is crimped to the exposed conductor 11 ⁇ / b> A exposed at the front end of the copper wire 10, and the pair of insulation barrel pieces 5 is crimped to the covering portion 13 of the copper wire 10.
  • the aluminum electric wire 15 As shown in FIG. 1, the aluminum electric wire 15 is disposed outside the housing 1.
  • the aluminum electric wire 15 includes a conductor 16 made of aluminum or an aluminum alloy, and an insulating coating 17 formed by coating the outer periphery of the conductor 16 with an insulating synthetic resin.
  • the conductor 16 is formed by twisting a plurality of strands. The conductor 16 is exposed at the front end of the aluminum wire 15 due to the peeling of the insulating coating 17 (exposed conductor 16).
  • the relay terminal 20 is formed by pressing a metal plate material into a predetermined shape.
  • a metal which forms the relay terminal 20 it can select suitably from arbitrary metals as needed, such as copper, a copper alloy, aluminum, an aluminum alloy, iron, and an iron alloy.
  • copper or a copper alloy is used because it has high conductivity.
  • a plating layer is formed on the surface of the relay terminal 20.
  • the metal forming the plating layer include tin, nickel, chromium, zinc, gold, and silver.
  • a tin plating layer having a low contact resistance is formed.
  • the end of the copper wire 10 is connected to the front side of the relay terminal 20, and the end of the aluminum wire 15 is connected to the rear side of the relay terminal 20.
  • a first covering crimping portion 21 that crimps the covering portion 13 covered with the insulating coating 12 of the copper electric wire 10 and a first exposed conductor 11B of the terminal on the rear side of the copper electric wire 10 are crimped.
  • a conductor crimping portion 22 is formed. The conductor 11 of the copper wire 10 is exposed between the first covered crimp portion 21 and the first conductor crimp portion 22.
  • the first cover crimping part 21 and the first conductor crimping part 22 are open barrel type crimping parts.
  • a draining portion 23 is formed behind the first conductor crimping portion 22. As shown in FIG. 2, the draining portion 23 has a plate shape and can prevent water from entering.
  • a second conductor crimping portion 24 to which the exposed conductor 16 exposed at the end of the aluminum wire 15 is crimped, and a covering portion 18 covered with the insulating coating 17 of the aluminum wire 15.
  • a second covering crimping portion 25 to be crimped is formed.
  • the second conductor crimping part 24 is provided at a distance from the first conductor crimping part 22, and a draining part 23 is provided between the two conductor crimping parts 22, 24.
  • the second cover crimping portion 25 and the second conductor crimping portion 24 are open barrel type crimping portions.
  • the second conductor crimping portion 24 is crimped to the conductor 16 with a higher crimping force than the first conductor crimping portion 22.
  • the covering member 30 is composed of a heat-shrinkable tube that is in close contact with the relay terminal 20 by covering the relay terminal 20 with a cylindrical body (tube) made of synthetic resin and then contracting it by heating.
  • the conductor 16 is exposed between the second conductor crimping portion 24 and the second covering crimping portion 25 in the state where there is no coating member 30, but is covered with the coating member 30 in this embodiment.
  • the copper conductor 10 and the aluminum wire 15 that are accommodated in the housing 1 and led out from the housing 1 are crimped to the exposed conductors 11 and 16 of the respective wires 10 and 15. 22 and the relay terminal 20 having the second conductor crimping portion 24 are electrically connected. Accordingly, the conductor crimping portions 22 and 24 of the relay terminal 20 can be crimped according to the strength and electrical conductivity of the conductors 11 and 16, so that the connection reliability between the electric wires 10 and 15 and the relay terminal 20 is improved. Can be increased.
  • the relay terminal 20 includes the first coated crimping portion 21 that is crimped to the covering portion 13 of the copper electric wire 10 and the second coated crimping portion 25 that is crimped to the covering portion 18 of the aluminum electric wire 15. Since each electric wire 10 and 15 is connected to the relay terminal 20 by two crimping parts (conductor crimping parts 22 and 24 and covering crimping parts 21 and 25), the connection reliability is further improved. Can do.
  • the conductor 16 crimped to the second conductor crimping portion 24 is made of aluminum or aluminum alloy, whereas the metal material constituting the second conductor crimping portion 24 (relay terminal 20) is made of copper or copper alloy. Therefore, in the 2nd conductor crimping
  • the first conductor crimping portion 22 and the second conductor crimping portion 24 are provided at an interval, and a draining device is provided between the first conductor crimping portion 22 and the second conductor crimping portion 24.
  • a portion 23 is provided.
  • the covering member 30 is an exposed conductor 16 made of a metal (aluminum or aluminum alloy) different from a metal (copper or copper alloy) constituting the relay terminal 20 in a region behind the draining portion 23.
  • the second conductor crimping portion 24 and the second covering crimping portion 25 to be crimped to each other are covered (regions indicated by two-dot chain lines in FIG. 2).
  • the covering member 30 prevents water from entering a region behind the draining portion 23, and the draining portion. 23 is drained.
  • interval has opened between the 1st conductor crimping
  • the covering member 30 is configured by a heat shrinkable tube, the covering member 30 can be configured simply.
  • compression-bonding part 24 are an open barrel type, it can be set as a simple structure of a terminal shape, and is compared with the case of a closed barrel type. Easy to process.
  • the present invention is not limited to the embodiments described with reference to the above description and drawings.
  • the following embodiments are also included in the technical scope of the present invention.
  • the relay terminal 20 including the first covered crimping portion 21 and the second covered crimping portion 25 together with the first conductor crimping portion 22 and the second conductor crimping portion 24 is shown. There may be no relay terminal.
  • the relay terminal 20 in which the first conductor crimping portion 22 and the second conductor crimping portion 24 are provided at an interval is shown.
  • the first conductor crimping portion and the second conductor crimping portion are It suffices if they are formed separately and need not be spaced apart.
  • the relay terminal 20 which provided the plate-shaped draining part 23 was shown, the draining part should just be a shape which prevents the penetration
  • the covering member 30 covering the second conductor crimping portion 24 and the second covering crimping portion 25 behind the draining portion 23 is provided, but the covering member is not provided. Alternatively, the covering member may cover the entire relay terminal or only the second conductor crimping portion.
  • the relay terminal is made of aluminum (alloy)
  • electrolytic corrosion can be prevented in the same manner as shown in the first embodiment by providing a covering member that covers the first conductor crimping portion.
  • coated member 30 with a heat contraction tube was shown, you may comprise with a resin mold.
  • compression-bonding part 24 showed the example of an open barrel type, a closed barrel type may be sufficient.

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  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Abstract

This relay terminal (20) connects: a copper electrical wire (10) that is connected to a first terminal (2) housed in a housing (1), is led out from the housing (1), and results from covering a copper or copper alloy conductor (11) with an insulating covering (12); and an aluminum electrical wire (15) that is disposed outside the housing (1) and results from covering an aluminum or aluminum alloy conductor (16) with an insulating covering (17). The relay terminal (20) is provided with: a first conductor crimped section (22) that is crimped to an exposed conductor (11) exposed by peeling away the insulating covering (12) at the terminus of the copper electrical wire (10); and a second conductor crimped section (24) that is crimped to an exposed conductor (16) exposed by peeling away the insulating covering (17) at the terminus of the aluminum electrical wire (15).

Description

中継端子および電線と端子の接続構造Relay terminal and connection structure of electric wire and terminal
　本発明は、中継端子および電線と端子の接続構造に関する。 The present invention relates to a relay terminal and a connection structure between an electric wire and a terminal.
　従来、自動車等の車両に配索されるワイヤーハーネスには、導電性や強度に優れる銅または銅合金製の導体を絶縁被覆で被覆してなる銅電線が多く用いられている（例えば特許文献１を参照）。 2. Description of the Related Art Conventionally, for a wire harness routed in a vehicle such as an automobile, a copper wire formed by covering a conductor made of copper or a copper alloy having excellent conductivity and strength with an insulating coating has been used (for example, Patent Document 1). See).
特開２０１１－１４３４９号公報JP 2011-14349 A
　近年、自動車等には、多数の電装品が搭載されるのに伴い電装品に電力を供給するためのワイヤーハーネスが多数配索されるため、ワイヤーハーネスにも軽量化が求められている。 In recent years, as many electrical components are mounted on automobiles and the like, many wire harnesses for supplying electric power to the electrical components are routed, so that the wire harness is also required to be reduced in weight.
　ワイヤーハーネスの軽量化という観点から、アルミニウムまたはアルミニウム合金製の導体を絶縁被覆で被覆してなるアルミニウム電線を用いることが検討されている。 From the viewpoint of reducing the weight of the wire harness, it has been studied to use an aluminum electric wire obtained by coating a conductor made of aluminum or an aluminum alloy with an insulating coating.
　電装品とワイヤーハーネスとを接続するコネクタは、銅電線に対応したハウジングを備えるものが多いため、コネクタに接続される部分のみに従来通り銅電線を用い、それ以外の部分にアルミニウム電線を用いることで軽量化することが好ましいと考えられる。 Since many connectors that connect electrical components and wire harnesses have a housing that supports copper wires, use copper wires as usual only for the portion connected to the connector, and use aluminum wires for other portions. It is considered preferable to reduce the weight.
　そこで、銅電線とアルミニウム電線とを接続するための端子が必要となる。このような端子においては、銅または銅合金製の導体とアルミニウムまたはアルミニウム合金製の導体という相違する金属材料からなる導体を接続する必要があるため、電気的な接続信頼性を高めるために導体の強度や電気導電性等を考慮する必要があった。 Therefore, a terminal for connecting the copper wire and the aluminum wire is required. In such a terminal, it is necessary to connect a conductor made of a different metal material such as a conductor made of copper or copper alloy and a conductor made of aluminum or aluminum alloy. Therefore, in order to improve electrical connection reliability, It was necessary to consider strength, electrical conductivity, and the like.
　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、電線との接続信頼性の高い中継端子、および接続信頼性の高い電線と端子の接続構造を提供することを目的とする。 This invention was completed based on the above situations, Comprising: It aims at providing the connection terminal of a highly reliable connection terminal with an electric wire, and an electric wire and a terminal with high connection reliability. .
　上記課題を解決するものとして、本発明はハウジングに収容される第１端子に接続されるとともに当該ハウジングから導出され、銅または銅合金製の導体を絶縁被覆で被覆してなる銅電線と、前記ハウジングの外側に配され、アルミニウムまたはアルミニウム合金製の導体を絶縁被覆で被覆してなるアルミニウム電線と、を接続する中継端子であって、前記銅電線の端末において絶縁被覆の剥離により露出する露出導体に圧着される第１導体圧着部と、前記アルミニウム電線の端末において絶縁被覆の剥離により露出する露出導体に圧着される第２導体圧着部とを、それぞれ備える中継端子である。 In order to solve the above-mentioned problems, the present invention is connected to a first terminal accommodated in a housing and led out from the housing, and a copper electric wire formed by covering a copper or copper alloy conductor with an insulating coating, An exposed conductor disposed on the outside of the housing and connected to an aluminum wire formed by coating a conductor made of aluminum or an aluminum alloy with an insulating coating, and exposed by peeling off the insulating coating at the end of the copper wire The relay terminal is provided with a first conductor crimping portion that is crimped to the second conductor and a second conductor crimping portion that is crimped to the exposed conductor exposed by peeling off the insulation coating at the end of the aluminum electric wire.
　また本発明は、ハウジングに収容される第１端子に接続されるとともに当該ハウジングから導出され、銅または銅合金製の導体を絶縁被覆で被覆してなる銅電線と、前記ハウジングの外側に配され、アルミニウムまたはアルミニウム合金製の導体を絶縁被覆で被覆してなるアルミニウム電線と、前記銅電線および前記アルミニウム電線を接続する端子の接続構造であって、前記端子は、前記銅電線の端末において絶縁被覆の剥離により露出する露出導体に圧着される第１導体圧着部と、前記アルミニウム電線の端末において絶縁被覆の剥離により露出する露出導体に圧着される第２導体圧着部とを、それぞれ備える中継端子である電線と端子の接続構造である。 The present invention also provides a copper wire that is connected to a first terminal accommodated in the housing and led out from the housing, and is formed by covering a copper or copper alloy conductor with an insulating coating, and is disposed outside the housing. A connection structure of an aluminum wire formed by coating a conductor made of aluminum or aluminum alloy with an insulation coating, and a terminal for connecting the copper wire and the aluminum wire, wherein the terminal is insulation-coated at the end of the copper wire A relay terminal provided with a first conductor crimping portion that is crimped to an exposed conductor exposed by peeling of the second conductor, and a second conductor crimping portion that is crimped to an exposed conductor exposed by peeling of the insulation coating at the end of the aluminum wire, respectively. It is a connection structure of a certain electric wire and terminal.
　本発明においては、ハウジングに収容されるとともにハウジングから導出される銅電線とアルミニウム電線とが、それぞれの電線の露出導体に圧着される導体圧着部（第１導体圧着部、第２導体圧着部）を有する中継端子により電気的に接続されるようになっている。したがって、各導体の強度や電気導電性に合わせて中継端子の各導体圧着部を圧着することができるので、各電線と端子との接続信頼性を高めることができる。その結果、本発明によれば、電線との接続信頼性の高い中継端子および接続信頼性の高い電線と端子の接続構造を提供することができる。 In the present invention, a conductor crimping portion (first conductor crimping portion, second conductor crimping portion) in which a copper wire and an aluminum wire that are accommodated in the housing and led out from the housing are crimped to the exposed conductor of each wire. It is electrically connected by a relay terminal having Therefore, each conductor crimping portion of the relay terminal can be crimped according to the strength and electrical conductivity of each conductor, so that the connection reliability between each electric wire and the terminal can be enhanced. As a result, according to the present invention, it is possible to provide a relay terminal with high connection reliability with an electric wire and an electric wire and terminal connection structure with high connection reliability.
　本発明は以下の構成としてもよい。
　中継端子は、前記銅電線の絶縁被覆により覆われた被覆部に圧着される第１被覆圧着部と、前記アルミニウム電線の絶縁被覆により覆われた被覆部に圧着される第２被覆圧着部とをそれぞれ備えていてもよい。
　このような構成とすると、各電線が２つの圧着部により中継端子に接続されるので、より接続信頼性を高めることができる。 The present invention may have the following configurations.
The relay terminal includes a first coated crimping portion that is crimped to a covering portion covered with an insulating coating of the copper electric wire, and a second coated crimping portion that is crimped to a covering portion covered with the insulating coating of the aluminum electric wire. Each may be provided.
If it is set as such a structure, since each electric wire is connected to a relay terminal by two crimping | compression-bonding parts, connection reliability can be improved more.
　前記第１導体圧着部と前記第２導体圧着部とが間隔をあけて設けられていてもよい。
　第１導体圧着部に圧着される導体は銅または銅合金製であり、第２導体圧着部に圧着される導体はアルミニウムまたはアルミニウム合金製なので、少なくとも一方の導体の金属材料と導体圧着部（中継端子）を構成する金属材料とは相違する。異種金属が接触する部分に塩分などの電解質を含む水が浸入すると電食の発生が懸念される。ここで２つの導体圧着部が連なっている場合には、一方の導体圧着部に生じた電食が他方の導体圧着部に至る可能性がある。そこで、上記のような構成とすると、一方の導体圧着部において電食が生じた場合であっても、他方の導体圧着部には至らない。 The first conductor crimping portion and the second conductor crimping portion may be provided with a gap therebetween.
Since the conductor to be crimped to the first conductor crimping part is made of copper or copper alloy and the conductor to be crimped to the second conductor crimping part is made of aluminum or aluminum alloy, the metal material of at least one conductor and the conductor crimping part (relay) This is different from the metal material constituting the terminal. If water containing an electrolyte such as salt enters the part that comes into contact with a different metal, there is a concern about the occurrence of electrolytic corrosion. Here, when two conductor crimping portions are connected, there is a possibility that electrolytic corrosion generated in one conductor crimping portion reaches the other conductor crimping portion. Therefore, with the above configuration, even if electrolytic corrosion occurs in one conductor crimping portion, it does not reach the other conductor crimping portion.
　前記第１導体圧着部と前記第２導体圧着部との間には水切り部が設けられていてもよい。
　このような構成とすると、電解質を含む水が一方の導体圧着部に降りかかったとしても、導体と他方の導体圧着部とが接触する部分に至る前に、水切り部により排水されるので、電食の発生を防止することができる。 A draining portion may be provided between the first conductor crimping portion and the second conductor crimping portion.
With such a configuration, even if water containing the electrolyte falls on one conductor crimping part, it is drained by the draining part before reaching the part where the conductor and the other conductor crimping part come into contact. The occurrence of food can be prevented.
　少なくとも、前記中継端子を構成する金属と異なる金属からなる露出導体に圧着される導体圧着部を覆う被覆部材を備えていてもよい。
　このような構成とすると、少なくとも中継端子を構成する金属と異なる金属からなる露出導体に圧着される導体圧着部が被覆部材により覆われるので、電解質を含む水が導体と導体圧着部とが接触する部分に浸入するのを防止することができる。 You may provide the coating | coated member which covers the conductor crimping | compression-bonding part crimped | bonded to the exposed conductor which consists of a metal different from the metal which comprises the said relay terminal at least.
With such a configuration, since the conductor crimping portion to be crimped to the exposed conductor made of a metal different from the metal constituting the relay terminal is covered with the covering member, the water containing the electrolyte contacts the conductor and the conductor crimping portion. Intrusion into the part can be prevented.
　前記被覆部材は、前記中継端子を構成する金属と異なる金属からなる導体を有する電線の絶縁被覆により被覆された被覆部に圧着される被覆圧着部を覆う構成であってもよい。
　被覆部材が導体圧着部のみを覆っている場合には、被覆圧着部に付着した水が被覆部材と導体圧着部との隙間から導体圧着部と導体とが接触する部分に浸入する可能性があるが、上記のような構成とすると被覆圧着部への水の付着が防止されるので、導体圧着部と導体とが接触する部分への水の浸入を確実に防止することができる。 The said covering member may be the structure which covers the covering crimping | compression-bonding part crimped | bonded to the coating | coated part coat | covered with the insulation coating of the electric wire which has a conductor which consists of a metal different from the metal which comprises the said relay terminal.
When the covering member covers only the conductor crimping portion, there is a possibility that water adhering to the coating crimping portion may enter a portion where the conductor crimping portion and the conductor are in contact with each other through a gap between the covering member and the conductor crimping portion. However, since the water is prevented from adhering to the coated crimping portion when configured as described above, it is possible to reliably prevent water from entering the portion where the conductor crimping portion and the conductor are in contact with each other.
　前記被覆部材は、樹脂モールドにより構成されるかまたは熱収縮チューブにより構成されていてもよい。
　このような構成とすると、被覆部材を簡易な構成とすることができる。 The covering member may be formed of a resin mold or a heat shrinkable tube.
With such a configuration, the covering member can have a simple configuration.
　前記第１導体圧着部および前記第２導体圧着部は、オープンバレルタイプであってもよい。
　このような構成とすると端子形状を簡易な構造とすることができる。 The first conductor crimping portion and the second conductor crimping portion may be an open barrel type.
With such a configuration, the terminal shape can be a simple structure.
　本発明によれば、電線との接続信頼性の高い中継端子、および接続信頼性の高い電線と端子の接続構造を提供することができる。 According to the present invention, it is possible to provide a relay terminal having high connection reliability with an electric wire and a connection structure between the electric wire and terminal having high connection reliability.
実施形態１の中継端子と電線との接続構造を示す平面図The top view which shows the connection structure of the relay terminal and electric wire of Embodiment 1 中継端子の拡大平面図Enlarged plan view of the relay terminal
　＜実施形態１＞
　実施形態１の端子２０（中継端子２０）と電線１０，１５の接続構造を図１および図２によって説明する。図１および図２における左側を前方とし右側を後方とする。
　本実施形態の中継端子２０は、例えば、自動車等の車両（図示せず）の内部に配索して使用される銅電線１０とアルミニウム電線１５とを電気的に接続する端子２０である。 <Embodiment 1>
A connection structure between the terminal 20 (relay terminal 20) and the electric wires 10 and 15 according to the first embodiment will be described with reference to FIGS. The left side in FIGS. 1 and 2 is the front and the right side is the rear.
The relay terminal 20 of this embodiment is the terminal 20 which electrically connects the copper electric wire 10 and the aluminum electric wire 15 which are wired and used inside vehicles (not shown), such as a motor vehicle, for example.
　（銅電線１０）
　銅電線１０は、図１に示すように、前側の端末がハウジング１内に収容される第１端子２に接続されるとともに、ハウジング１外に導出されている。銅電線１０のハウジング１外に導出された後側の端末は、中継端子２０に接続されている。 (Copper wire 10)
As shown in FIG. 1, the copper wire 10 is connected to the first terminal 2 whose front end is accommodated in the housing 1 and led out of the housing 1. The terminal on the rear side led out of the housing 1 of the copper wire 10 is connected to the relay terminal 20.
　銅電線１０は、銅または銅合金製の導体１１と、この導体１１の外周を絶縁性の合成樹脂で被覆してなる絶縁被覆１２と、を備える。導体１１は、複数の素線を撚り合せてなる。銅電線１０の前側の端末１１Ａおよび後側の端末１１Ｂは、それぞれ絶縁被覆１２の剥離により導体１１が露出している（露出導体１１Ａ，１１Ｂ）。 The copper electric wire 10 includes a conductor 11 made of copper or a copper alloy, and an insulating coating 12 formed by coating the outer periphery of the conductor 11 with an insulating synthetic resin. The conductor 11 is formed by twisting a plurality of strands. The conductor 11 is exposed at the front end 11A and the rear end 11B of the copper wire 10 due to the peeling of the insulating coating 12 (exposed conductors 11A and 11B).
　（第１端子２）
　銅電線１０の前側の端末が接続される第１端子２は雌型の端子であり金属板材を所定の形状にプレス加工して形成される。第１端子２を形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から適宜に選択できる。本実施形態においては、高い導電性を有することから銅又は銅合金が用いられる。 (First terminal 2)
The first terminal 2 to which the front end of the copper wire 10 is connected is a female terminal, and is formed by pressing a metal plate material into a predetermined shape. As a metal which forms the 1st terminal 2, it can select suitably from arbitrary metals as needed, such as copper, a copper alloy, aluminum, an aluminum alloy, iron, and an iron alloy. In this embodiment, copper or a copper alloy is used because it has high conductivity.
　第１端子２の表面には、メッキ層が形成されている。メッキ層を形成する金属としては、スズ、ニッケル、クロム、亜鉛、金、銀等があげられる。本実施形態においては接触抵抗の低いスズメッキ層が形成されている。 A plating layer is formed on the surface of the first terminal 2. Examples of the metal forming the plating layer include tin, nickel, chromium, zinc, gold, and silver. In the present embodiment, a tin plating layer having a low contact resistance is formed.
　第１端子２の前端側には図示しない相手側端子と電気的に接続される弾性接触片（図示せず）が形成された筒状の端子接続部３が形成されている。第１端子２の端子接続部３の後方に連なる部分には、銅電線１０に接続される一対のワイヤバレル片４と一対のインシュレーションバレル片５が形成されている。一対のワイヤバレル片４は銅電線１０の前側の端末において露出した露出導体１１Ａに圧着され、一対のインシュレーションバレル片５は銅電線１０の被覆部１３に圧着されている。 A cylindrical terminal connecting portion 3 is formed on the front end side of the first terminal 2 and is formed with an elastic contact piece (not shown) that is electrically connected to a counterpart terminal (not shown). A pair of wire barrel pieces 4 and a pair of insulation barrel pieces 5 connected to the copper electric wire 10 are formed in a portion of the first terminal 2 connected to the rear of the terminal connection portion 3. The pair of wire barrel pieces 4 is crimped to the exposed conductor 11 </ b> A exposed at the front end of the copper wire 10, and the pair of insulation barrel pieces 5 is crimped to the covering portion 13 of the copper wire 10.
　（アルミニウム電線１５）
　アルミニウム電線１５は、図１に示すように、ハウジング１の外側に配されている。アルミニウム電線１５は、アルミニウムまたはアルミニウム合金製の導体１６と、この導体１６の外周を絶縁性の合成樹脂で被覆してなる絶縁被覆１７と、を備える。導体１６は、複数の素線を撚り合せてなる。アルミニウム電線１５の前側の端末は、絶縁被覆１７の剥離により導体１６が露出している（露出導体１６）。 (Aluminum wire 15)
As shown in FIG. 1, the aluminum electric wire 15 is disposed outside the housing 1. The aluminum electric wire 15 includes a conductor 16 made of aluminum or an aluminum alloy, and an insulating coating 17 formed by coating the outer periphery of the conductor 16 with an insulating synthetic resin. The conductor 16 is formed by twisting a plurality of strands. The conductor 16 is exposed at the front end of the aluminum wire 15 due to the peeling of the insulating coating 17 (exposed conductor 16).
　（中継端子２０）
　さて、本実施形態では、銅電線１０とアルミニウム電線１５とが中継端子２０により電気的に接続されている。中継端子２０は、金属板材を所定の形状にプレス加工して形成される。中継端子２０を形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から適宜に選択できる。本実施形態においては、高い導電性を有することから銅又は銅合金が用いられる。 (Relay terminal 20)
Now, in this embodiment, the copper electric wire 10 and the aluminum electric wire 15 are electrically connected by the relay terminal 20. The relay terminal 20 is formed by pressing a metal plate material into a predetermined shape. As a metal which forms the relay terminal 20, it can select suitably from arbitrary metals as needed, such as copper, a copper alloy, aluminum, an aluminum alloy, iron, and an iron alloy. In this embodiment, copper or a copper alloy is used because it has high conductivity.
　中継端子２０の表面には、メッキ層が形成されている。メッキ層を形成する金属としては、スズ、ニッケル、クロム、亜鉛、金、銀等があげられる。本実施形態においては接触抵抗の低いスズメッキ層が形成されている。 A plating layer is formed on the surface of the relay terminal 20. Examples of the metal forming the plating layer include tin, nickel, chromium, zinc, gold, and silver. In the present embodiment, a tin plating layer having a low contact resistance is formed.
　中継端子２０の前側には銅電線１０の端末が接続され、中継端子２０の後側にはアルミニウム電線１５の端末が接続されている。 The end of the copper wire 10 is connected to the front side of the relay terminal 20, and the end of the aluminum wire 15 is connected to the rear side of the relay terminal 20.
　中継端子２０の前側には、銅電線１０の絶縁被覆１２により被覆された被覆部１３を圧着する第１被覆圧着部２１と、銅電線１０の後側の端末の露出導体１１Ｂを圧着する第１導体圧着部２２とが形成されている。第１被覆圧着部２１と第１導体圧着部２２との間では銅電線１０の導体１１が露出している。本実施形態において、第１被覆圧着部２１および第１導体圧着部２２はオープンバレルタイプの圧着部である。 On the front side of the relay terminal 20, a first covering crimping portion 21 that crimps the covering portion 13 covered with the insulating coating 12 of the copper electric wire 10 and a first exposed conductor 11B of the terminal on the rear side of the copper electric wire 10 are crimped. A conductor crimping portion 22 is formed. The conductor 11 of the copper wire 10 is exposed between the first covered crimp portion 21 and the first conductor crimp portion 22. In the present embodiment, the first cover crimping part 21 and the first conductor crimping part 22 are open barrel type crimping parts.
　第１導体圧着部２２の後方には水切り部２３が形成されている。水切り部２３は図２に示すように、板状をなしていて水が浸入するのを防止可能となっている。 A draining portion 23 is formed behind the first conductor crimping portion 22. As shown in FIG. 2, the draining portion 23 has a plate shape and can prevent water from entering.
　中継端子２０の水切り部２３の後方には、アルミニウム電線１５の端末において露出する露出導体１６が圧着される第２導体圧着部２４と、アルミニウム電線１５の絶縁被覆１７により被覆された被覆部１８を圧着する第２被覆圧着部２５とが形成されている。第２導体圧着部２４は第１導体圧着部２２と間隔をあけて設けられているとともに、２つの導体圧着部２２，２４の間には水切り部２３が設けられている。本実施形態において、第２被覆圧着部２５および第２導体圧着部２４はオープンバレルタイプの圧着部である。第２導体圧着部２４は第１導体圧着部２２よりも高い圧着力で導体１６に圧着されている。 Behind the draining portion 23 of the relay terminal 20 are a second conductor crimping portion 24 to which the exposed conductor 16 exposed at the end of the aluminum wire 15 is crimped, and a covering portion 18 covered with the insulating coating 17 of the aluminum wire 15. A second covering crimping portion 25 to be crimped is formed. The second conductor crimping part 24 is provided at a distance from the first conductor crimping part 22, and a draining part 23 is provided between the two conductor crimping parts 22, 24. In the present embodiment, the second cover crimping portion 25 and the second conductor crimping portion 24 are open barrel type crimping portions. The second conductor crimping portion 24 is crimped to the conductor 16 with a higher crimping force than the first conductor crimping portion 22.
　（被覆部材３０）
　中継端子２０の後半分の領域と、中継端子２０の後端部から導出されるアルミニウム電線１５の一部は被覆部材３０により覆われている。つまり、被覆部材３０は中継端子２０の水切り部２３の後側半分と第２導体圧着部２４、第２被覆圧着部２５とを覆うように被せ付けられている。被覆部材３０は、合成樹脂からなる筒状体（チューブ）を中継端子２０に被せたのちに、加熱して収縮させることにより中継端子２０に密着させた熱収縮チューブにより構成されている。 (Coating member 30)
A region of the rear half of the relay terminal 20 and a part of the aluminum wire 15 led out from the rear end portion of the relay terminal 20 are covered with a covering member 30. That is, the covering member 30 is placed so as to cover the rear half of the draining portion 23 of the relay terminal 20, the second conductor crimping portion 24, and the second covering crimping portion 25. The covering member 30 is composed of a heat-shrinkable tube that is in close contact with the relay terminal 20 by covering the relay terminal 20 with a cylindrical body (tube) made of synthetic resin and then contracting it by heating.
　なお、第２導体圧着部２４と第２被覆圧着部２５との間は被覆部材３０がない状態では、導体１６が露出しているが、本実施形態では、被覆部材３０により覆われている。 Note that the conductor 16 is exposed between the second conductor crimping portion 24 and the second covering crimping portion 25 in the state where there is no coating member 30, but is covered with the coating member 30 in this embodiment.
　（作用および効果）
　次に、本実施形態の作用および効果について説明する。
　本実施形態においては、ハウジング１に収容されるとともにハウジング１から導出される銅電線１０とアルミニウム電線１５とが、それぞれの電線１０，１５の露出導体１１，１６に圧着される第１導体圧着部２２および第２導体圧着部２４を有する中継端子２０により電気的に接続されるようになっている。したがって、各導体１１，１６の強度や電気導電性に合わせて中継端子２０の各導体圧着部２２，２４を圧着することができるので、各電線１０，１５と中継端子２０との接続信頼性を高めることができる。その結果、本実施形態によれば、電線１０，１５との接続信頼性の高い中継端子２０および接続信頼性の高い電線１０，１５と端子２０（中継端子２０）の接続構造を提供することができる。 (Function and effect)
Next, the operation and effect of this embodiment will be described.
In the present embodiment, the copper conductor 10 and the aluminum wire 15 that are accommodated in the housing 1 and led out from the housing 1 are crimped to the exposed conductors 11 and 16 of the respective wires 10 and 15. 22 and the relay terminal 20 having the second conductor crimping portion 24 are electrically connected. Accordingly, the conductor crimping portions 22 and 24 of the relay terminal 20 can be crimped according to the strength and electrical conductivity of the conductors 11 and 16, so that the connection reliability between the electric wires 10 and 15 and the relay terminal 20 is improved. Can be increased. As a result, according to the present embodiment, it is possible to provide a relay terminal 20 having high connection reliability with the electric wires 10 and 15 and a connection structure between the electric wires 10 and 15 having high connection reliability and the terminals 20 (relay terminals 20). it can.
　また、本実施形態によれば、中継端子２０は、銅電線１０の被覆部１３に圧着される第１被覆圧着部２１と、アルミニウム電線１５の被覆部１８に圧着される第２被覆圧着部２５とをそれぞれ備えているから、各電線１０，１５が２つの圧着部（導体圧着部２２，２４および被覆圧着部２１，２５）により中継端子２０に接続されるので、より接続信頼性を高めることができる。 In addition, according to the present embodiment, the relay terminal 20 includes the first coated crimping portion 21 that is crimped to the covering portion 13 of the copper electric wire 10 and the second coated crimping portion 25 that is crimped to the covering portion 18 of the aluminum electric wire 15. Since each electric wire 10 and 15 is connected to the relay terminal 20 by two crimping parts ( conductor crimping parts 22 and 24 and covering crimping parts 21 and 25), the connection reliability is further improved. Can do.
　ところで、第２導体圧着部２４に圧着される導体１６はアルミニウムまたはアルミニウム合金製であるのに対し、第２導体圧着部２４（中継端子２０）を構成する金属材料は銅または銅合金製であるので、第２導体圧着部２４においては、異種金属（アルミニウムと銅）が接触する。このような異種金属が接触する部分に電解質を含む水が浸入すると電食が発生することが懸念される。 By the way, the conductor 16 crimped to the second conductor crimping portion 24 is made of aluminum or aluminum alloy, whereas the metal material constituting the second conductor crimping portion 24 (relay terminal 20) is made of copper or copper alloy. Therefore, in the 2nd conductor crimping | compression-bonding part 24, a dissimilar metal (aluminum and copper) contacts. There is a concern that electrolytic corrosion may occur when water containing an electrolyte infiltrates into a portion in contact with such a different metal.
　しかしながら、本実施形態において、第１導体圧着部２２と第２導体圧着部２４とが間隔をあけて設けられており、第１導体圧着部２２と第２導体圧着部２４との間には水切り部２３が設けられている。さらに本実施形態においては、被覆部材３０が、水切り部２３よりも後方の領域、つまり、中継端子２０を構成する金属（銅または銅合金）と異なる金属（アルミニウムまたはアルミニウム合金）からなる露出導体１６に圧着される第２導体圧着部２４と第２被覆圧着部２５とを覆っている（図２における二点鎖線で示した領域）。 However, in the present embodiment, the first conductor crimping portion 22 and the second conductor crimping portion 24 are provided at an interval, and a draining device is provided between the first conductor crimping portion 22 and the second conductor crimping portion 24. A portion 23 is provided. Further, in the present embodiment, the covering member 30 is an exposed conductor 16 made of a metal (aluminum or aluminum alloy) different from a metal (copper or copper alloy) constituting the relay terminal 20 in a region behind the draining portion 23. The second conductor crimping portion 24 and the second covering crimping portion 25 to be crimped to each other are covered (regions indicated by two-dot chain lines in FIG. 2).
　したがって、本実施形態によれば、電解質を含む水が中継端子２０に降りかかったとしても、被覆部材３０により、水切り部２３よりも後方の領域への水の浸入が防止されるとともに、水切り部２３により排水される。そして本実施形態によれば、第１導体圧着部２２と第２導体圧着部２４との間には間隔があいているので、万が一、第２導体圧着部２４とアルミニウム電線１５の導体１６との接触部に水が浸入して第２導体圧着部２４において電食が生じた場合であっても、第１導体圧着部２２には至りにくい。 Therefore, according to the present embodiment, even when water containing an electrolyte falls on the relay terminal 20, the covering member 30 prevents water from entering a region behind the draining portion 23, and the draining portion. 23 is drained. And according to this embodiment, since the space | interval has opened between the 1st conductor crimping | compression-bonding part 22 and the 2nd conductor crimping | compression-bonding part 24, by any chance of the 2nd conductor crimping | compression-bonding part 24 and the conductor 16 of the aluminum electric wire 15 Even when water enters the contact portion and electric corrosion occurs in the second conductor crimping portion 24, it is difficult to reach the first conductor crimping portion 22.
　また、本実施形態によれば、被覆部材３０は、熱収縮チューブにより構成されているから、被覆部材３０を簡易な構成とすることができる。 Further, according to the present embodiment, since the covering member 30 is configured by a heat shrinkable tube, the covering member 30 can be configured simply.
　また、本実施形態によれば、第１導体圧着部２２および第２導体圧着部２４は、オープンバレルタイプであるから、端子形状を簡易な構造とすることができ、クローズドバレルタイプの場合よりも加工が容易である。 Moreover, according to this embodiment, since the 1st conductor crimping | compression-bonding part 22 and the 2nd conductor crimping | compression-bonding part 24 are an open barrel type, it can be set as a simple structure of a terminal shape, and is compared with the case of a closed barrel type. Easy to process.
　＜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）上記実施形態では、第１導体圧着部２２および第２導体圧着部２４とともに第１被覆圧着部２１および第２被覆圧着部２５を備える中継端子２０を示したが、被覆圧着部を備えない中継端子であってもよい。
　（２）上記実施形態では、第１導体圧着部２２と第２導体圧着部２４とを間隔をあけて設けた中継端子２０を示したが、第１導体圧着部と第２導体圧着部とは別々に形成されていればよく、間隔が空けられていなくてもよい。
　（３）上記実施形態では、板状の水切り部２３を設けた中継端子２０を示したが、水切り部は導体圧着部内への水の浸入を防ぐ形状であればよい。また、水切り部がない中継端子であってもよい。
　（４）上記実施形態では、水切り部２３から後方の第２導体圧着部２４と第２被覆圧着部２５とを覆う被覆部材３０を備える例を示したが、被覆部材を備えないものであってもよいし、被覆部材は中継端子全体を覆うものや、第２導体圧着部のみを覆うものであってもよい。なお、中継端子がアルミニウム（合金）製の場合には第１導体圧着部を覆う被覆部材を備える構成とすれば、上記実施形態１に示したのと同様に電食を防止することができる。
　（５）上記実施形態では、被覆部材３０を熱収縮チューブにより構成する例を示したが樹脂モールドにより構成してもよい。
　（６）上記実施形態では、第１導体圧着部２２および第２導体圧着部２４がオープンバレルタイプの例を示したが、クローズドバレルタイプであってもよい。 <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) In the above-described embodiment, the relay terminal 20 including the first covered crimping portion 21 and the second covered crimping portion 25 together with the first conductor crimping portion 22 and the second conductor crimping portion 24 is shown. There may be no relay terminal.
(2) In the above embodiment, the relay terminal 20 in which the first conductor crimping portion 22 and the second conductor crimping portion 24 are provided at an interval is shown. However, the first conductor crimping portion and the second conductor crimping portion are It suffices if they are formed separately and need not be spaced apart.
(3) In the said embodiment, although the relay terminal 20 which provided the plate-shaped draining part 23 was shown, the draining part should just be a shape which prevents the penetration | invasion of the water into a conductor crimping | compression-bonding part. Moreover, the relay terminal without a draining part may be sufficient.
(4) In the above embodiment, the example in which the covering member 30 covering the second conductor crimping portion 24 and the second covering crimping portion 25 behind the draining portion 23 is provided, but the covering member is not provided. Alternatively, the covering member may cover the entire relay terminal or only the second conductor crimping portion. In addition, when the relay terminal is made of aluminum (alloy), electrolytic corrosion can be prevented in the same manner as shown in the first embodiment by providing a covering member that covers the first conductor crimping portion.
(5) In the said embodiment, although the example which comprises the coating | coated member 30 with a heat contraction tube was shown, you may comprise with a resin mold.
(6) In the said embodiment, although the 1st conductor crimping | compression-bonding part 22 and the 2nd conductor crimping | compression-bonding part 24 showed the example of an open barrel type, a closed barrel type may be sufficient.
　１...ハウジング
　２...第１端子
　１０...銅電線
　１１...（銅電線の）導体
　１１Ｂ...（後端の）露出導体
　１２...（銅電線の）絶縁被覆
　１３...（銅電線の）被覆部
　１５...アルミニウム電線
　１６...（アルミニウム電線の）導体（露出導体）
　１７...（アルミニウム電線の）絶縁被覆
　１８...（アルミニウム電線の）被覆部
　２０...中継端子
　２１...第１被覆圧着部
　２２...第１導体圧着部
　２３...水切り部
　２４...第２導体圧着部
　２５...第２被覆圧着部
　３０...被覆部材 DESCRIPTION OF SYMBOLS 1 ... Housing 2 ... 1st terminal 10 ... Copper electric wire 11 ... Conductor of (copper electric wire) 11B ... Exposed conductor of (rear end) 12 ... Insulation coating (of copper electric wire) 13 ... (copper wire) sheath 15 ... Aluminum wire 16 ... (Aluminum wire) conductor (exposed conductor)
17 ... Insulation coating (of aluminum wire) 18 ... Covering portion of (aluminum wire) 20 ... Relay terminal 21 ... First coating crimping part 22 ... First conductor crimping part 23 ... Draining portion 24 ... second conductor crimping portion 25 ... second covering crimping portion 30 ... covering member

Claims (16)

  1. ハウジングに収容される第１端子に接続されるとともに当該ハウジングから導出され、銅または銅合金製の導体を絶縁被覆で被覆してなる銅電線と、
    　前記ハウジングの外側に配され、アルミニウムまたはアルミニウム合金製の導体を絶縁被覆で被覆してなるアルミニウム電線と、を接続する中継端子であって、
    　前記銅電線の端末において絶縁被覆の剥離により露出する露出導体に圧着される第１導体圧着部と、
    　前記アルミニウム電線の端末において絶縁被覆の剥離により露出する露出導体に圧着される第２導体圧着部とを、それぞれ備える中継端子。     A copper electric wire connected to a first terminal accommodated in the housing and led out from the housing, wherein a copper or copper alloy conductor is covered with an insulating coating;
    A relay terminal that is connected to the outside of the housing and connects an aluminum electric wire formed by coating a conductor made of aluminum or aluminum alloy with an insulating coating,
    A first conductor crimping portion that is crimped to an exposed conductor exposed by peeling off the insulation coating at the end of the copper wire;
    The relay terminal provided with the 2nd conductor crimping part crimped | bonded to the exposed conductor exposed by peeling of insulation coating in the terminal of the said aluminum electric wire, respectively.
  2. 前記銅電線の絶縁被覆により覆われた被覆部に圧着される第１被覆圧着部と、前記アルミニウム電線の絶縁被覆により覆われた被覆部に圧着される第２被覆圧着部とをそれぞれ備える請求項１に記載の中継端子。 A first covering crimping portion that is crimped to a covering portion that is covered with an insulating coating of the copper wire, and a second covering crimping portion that is crimped to a covering portion that is covered with the insulating coating of the aluminum wire. The relay terminal according to 1.
  3. 前記第１導体圧着部と前記第２導体圧着部とが間隔をあけて設けられている請求項１または請求項２に記載の中継端子。 The relay terminal according to claim 1, wherein the first conductor crimping portion and the second conductor crimping portion are provided with a gap therebetween.
  4. 前記第１導体圧着部と前記第２導体圧着部との間には水切り部が設けられている請求項１ないし請求項３のいずれか一項に記載の中継端子。 The relay terminal according to any one of claims 1 to 3, wherein a draining portion is provided between the first conductor crimping portion and the second conductor crimping portion.
  5. 少なくとも、前記中継端子を構成する金属と異なる金属からなる露出導体に圧着される導体圧着部を覆う被覆部材を備える請求項１ないし請求項４のいずれか一項に記載の中継端子。 5. The relay terminal according to claim 1, further comprising a covering member that covers a conductor crimping portion that is crimped to an exposed conductor made of a metal different from the metal constituting the relay terminal.
  6. 前記被覆部材は、前記中継端子を構成する金属と異なる金属からなる導体を有する電線の絶縁被覆により被覆された被覆部に圧着される被覆圧着部を覆う請求項５に記載の中継端子。 6. The relay terminal according to claim 5, wherein the covering member covers a coated crimping portion that is crimped to a coating portion that is coated with an insulating coating of an electric wire having a conductor made of a metal different from the metal constituting the relay terminal.
  7. 前記被覆部材は、樹脂モールドにより構成されるかまたは熱収縮チューブにより構成される請求項５または請求項６に記載の中継端子。 The relay terminal according to claim 5 or 6, wherein the covering member is formed of a resin mold or a heat-shrinkable tube.
  8. 前記第１導体圧着部および前記第２導体圧着部は、オープンバレルタイプである請求項１ないし請求項７のいずれか一項に記載の中継端子。 The relay terminal according to any one of claims 1 to 7, wherein the first conductor crimping portion and the second conductor crimping portion are of an open barrel type.
  9. ハウジングに収容される第１端子に接続されるとともに当該ハウジングから導出され、銅または銅合金製の導体を絶縁被覆で被覆してなる銅電線と、
    　前記ハウジングの外側に配され、アルミニウムまたはアルミニウム合金製の導体を絶縁被覆で被覆してなるアルミニウム電線と、前記銅電線および前記アルミニウム電線を接続する端子の接続構造であって、
    　前記端子は、前記銅電線の端末において絶縁被覆の剥離により露出する露出導体に圧着される第１導体圧着部と、
    　前記アルミニウム電線の端末において絶縁被覆の剥離により露出する露出導体に圧着される第２導体圧着部とを、それぞれ備える中継端子である電線と端子の接続構造。     A copper electric wire connected to a first terminal accommodated in the housing and led out from the housing, wherein a copper or copper alloy conductor is covered with an insulating coating;
    An aluminum electric wire that is arranged outside the housing and is formed by coating a conductor made of aluminum or an aluminum alloy with an insulating coating, and a connection structure for connecting the copper electric wire and the aluminum electric wire,
    The terminal is a first conductor crimping portion that is crimped to an exposed conductor exposed by peeling off the insulation coating at the end of the copper wire;
    A connection structure between an electric wire and a terminal, each of which is a relay terminal provided with a second conductor crimping portion that is crimped to an exposed conductor exposed by peeling off the insulation coating at the end of the aluminum electric wire.
  10. 前記中継端子は、前記銅電線の絶縁被覆により覆われた被覆部に圧着される第１被覆圧着部と、前記アルミニウム電線の絶縁被覆により覆われた被覆部に圧着される第２被覆圧着部とをそれぞれ備える請求項９に記載の電線と端子の接続構造。 The relay terminal includes a first coated crimping portion that is crimped to a coating portion covered with an insulating coating of the copper wire, and a second coated crimping portion that is crimped to a coating portion covered with the insulating coating of the aluminum wire. The connection structure of the electric wire and terminal of Claim 9 provided with each.
  11. 前記第１導体圧着部と前記第２導体圧着部とが間隔をあけて設けられている請求項９または請求項１０に記載の電線と端子の接続構造。 The connection structure of the electric wire and the terminal according to claim 9 or 10, wherein the first conductor crimping portion and the second conductor crimping portion are provided with a space therebetween.
  12. 前記中継端子の、前記第１導体圧着部と前記第２導体圧着部との間には水切り部が設けられている請求項９ないし請求項１１のいずれか一項に記載の電線と端子の接続構造。 The connection of the electric wire and terminal as described in any one of Claim 9 thru | or 11 with which the draining part is provided between the said 1st conductor crimping | compression-bonding part and the said 2nd conductor crimping | compression-bonding part of the said relay terminal. Construction.
  13. 少なくとも、前記中継端子を構成する金属と異なる金属からなる露出導体に圧着される導体圧着部を覆う被覆部材を備える請求項９ないし請求項１２のいずれか一項に記載の電線と端子の接続構造。 The electric wire and terminal connection structure according to any one of claims 9 to 12, further comprising a covering member that covers a conductor crimping portion that is crimped to an exposed conductor made of a metal different from the metal constituting the relay terminal. .
  14. 前記被覆部材は、前記中継端子を構成する金属と異なる金属からなる導体を有する電線の絶縁被覆により被覆された被覆部に圧着される被覆圧着部を覆う請求項１３に記載の電線と端子の接続構造。 The connection of the electric wire and the terminal according to claim 13, wherein the covering member covers a covering crimping portion that is crimped to a covering portion that is covered with an insulating coating of an electric wire having a conductor made of a metal different from the metal constituting the relay terminal. Construction.
  15. 前記被覆部材は、樹脂モールドにより構成されるかまたは熱収縮チューブにより構成される請求項１３または請求項１４に記載の電線と端子の接続構造。 The electric wire and terminal connection structure according to claim 13 or 14, wherein the covering member is formed of a resin mold or a heat-shrinkable tube.
  16. 前記中継端子の前記第１導体圧着部および前記第２導体圧着部は、オープンバレルタイプである請求項９ないし請求項１５のいずれか一項に記載の電線と端子の接続構造。 The wire-terminal connection structure according to any one of claims 9 to 15, wherein the first conductor crimping portion and the second conductor crimping portion of the relay terminal are of an open barrel type.
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