Deprecated: The each() function is deprecated. This message will be suppressed on further calls in /home/zhenxiangba/zhenxiangba.com/public_html/phproxy-improved-master/index.php on line 456
JP7596902B2 - Manufacturing method of electric wire with terminal - Google Patents
[go: Go Back, main page]

JP7596902B2 - Manufacturing method of electric wire with terminal - Google Patents

Manufacturing method of electric wire with terminal Download PDF

Info

Publication number
JP7596902B2
JP7596902B2 JP2021064834A JP2021064834A JP7596902B2 JP 7596902 B2 JP7596902 B2 JP 7596902B2 JP 2021064834 A JP2021064834 A JP 2021064834A JP 2021064834 A JP2021064834 A JP 2021064834A JP 7596902 B2 JP7596902 B2 JP 7596902B2
Authority
JP
Japan
Prior art keywords
terminal
compressed
conductor
portions
compression
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2021064834A
Other languages
Japanese (ja)
Other versions
JP2022160210A (en
Inventor
哲朗 佐藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Proterial Ltd
Original Assignee
Proterial Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Proterial Ltd filed Critical Proterial Ltd
Priority to JP2021064834A priority Critical patent/JP7596902B2/en
Priority to CN202111639704.XA priority patent/CN115207649A/en
Publication of JP2022160210A publication Critical patent/JP2022160210A/en
Application granted granted Critical
Publication of JP7596902B2 publication Critical patent/JP7596902B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-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
    • H01R4/10Electrically-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
    • H01R4/18Electrically-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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00Individual 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
    • H01R11/11End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02Contact members
    • H01R13/025Contact members formed by the conductors of a cable end
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/04Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Insulated Conductors (AREA)

Description

本発明は、端子付電線及び端子付電線の製造方法に関する。 The present invention relates to a terminal-attached electric wire and a method for manufacturing a terminal-attached electric wire.

従来から、端子に導体を挿入させた状態で、端子を複数回圧縮して複数個の圧縮部を形成することにより、端子を導体に接続させる端子付電線が開示されている。このとき、例えば、既に形成した隣り合う圧縮部の間に新たな圧縮部を形成した場合は、圧縮後長時間経過しても、導体と端子との間の電気抵抗を低く維持できることが知られている(特許文献1参照)。 Conventionally, terminal-attached electric wires have been disclosed in which a terminal is connected to a conductor by compressing the terminal multiple times while the conductor is inserted in the terminal to form multiple compressed sections. In this case, for example, it is known that if a new compressed section is formed between adjacent compressed sections that have already been formed, the electrical resistance between the conductor and the terminal can be maintained low even after a long time has passed since compression (see Patent Document 1).

特開2020-119865号公報JP 2020-119865 A

しかしながら、従来の端子付電線では、製造後に、複数の圧縮部が所望の圧縮順で圧縮されたかを容易に確認することができなかった。 However, with conventional terminal-attached electric wires, after production, it was not easy to check whether the multiple compression sections were compressed in the desired compression order.

本発明は、製造後に、複数の圧縮部が所望の圧縮順で圧縮されたかを容易に確認することができる端子付電線を提供することを目的とする。 The present invention aims to provide a terminal-attached electric wire that makes it easy to check whether multiple compression sections have been compressed in the desired compression order after manufacturing.

本発明の第1の態様によれば、
導体を有する電線と、
前記導体が挿入された状態で圧縮されることにより、前記導体に接続される端子と、
を備える端子付電線であって、
前記端子は、前記導体の長手方向に沿って3つ以上の圧縮部を有し、
前記3つ以上の圧縮部には、それぞれ、圧縮された順番に応じて突出量が異なる突出形状部が、前記端子の一部として形成されている、
端子付電線が提供される。
According to a first aspect of the present invention,
An electric wire having a conductor;
a terminal connected to the conductor by being compressed in an inserted state;
A terminal-attached electric wire comprising:
The terminal has three or more compression portions along a longitudinal direction of the conductor,
a protruding portion having a different protruding amount depending on the order of compression of each of the three or more compressed portions is formed as a part of the terminal;
A terminated wire is provided.

本発明の第2の態様によれば、
導体を有する電線と、前記導体を挿入する端子と、を準備する工程と、
前記端子に前記導体を挿入させた状態で、前記導体の長手方向に沿って前記端子を3回以上圧縮して、前記端子に3つ以上の圧縮部を形成することにより、前記端子を前記導体に接続する工程と、
を有する端子付電線の製造方法であって、
前記端子を前記導体に接続する工程は、前記3つ以上の圧縮部に、それぞれ、圧縮した順番に応じて突出量が異なる突出形状部を形成する工程を有する、
端子付電線の製造方法が提供される。
According to a second aspect of the present invention,
A step of preparing an electric wire having a conductor and a terminal into which the conductor is inserted;
a step of compressing the terminal three or more times along a longitudinal direction of the conductor with the conductor inserted into the terminal, thereby forming three or more compressed portions in the terminal, thereby connecting the terminal to the conductor;
A method for producing an electric wire with a terminal, comprising:
The step of connecting the terminal to the conductor includes a step of forming protruding portions having different protruding amounts in the three or more compressed portions according to the order of compression.
A method for manufacturing a terminal-fitted electric wire is provided.

本発明によれば、製造後に、複数の圧縮部が所望の圧縮順で圧縮されたかを容易に確認することができる端子付電線を提供することが可能となる。 The present invention makes it possible to provide a terminal-attached electric wire that allows easy confirmation after manufacture as to whether multiple compression sections have been compressed in the desired compression order.

図1は、本発明の一実施形態に係る端子付電線1が有する端子5及び導体3であり、端子5の中空部7内に導体が挿入される前の状態を例示する斜視図である。FIG. 1 is a perspective view illustrating a terminal 5 and a conductor 3 of a terminal-attached electric wire 1 according to an embodiment of the present invention, showing a state before the conductor is inserted into a hollow portion 7 of the terminal 5. As shown in FIG. 図2は、本発明の一実施形態に係る端子付電線1が有する端子5の中空部7内に導体3が挿入された後で、中空部7が圧縮される前の状態を例示する断面図である。FIG. 2 is a cross-sectional view illustrating a state after a conductor 3 is inserted into a hollow portion 7 of a terminal 5 of a terminal-attached electric wire 1 according to one embodiment of the present invention and before the hollow portion 7 is compressed. 図3は、本発明の一実施形態に係る端子付電線1が有する端子5を3回圧縮するときの端子付電線1の断面図である。FIG. 3 is a cross-sectional view of the terminal-attached electric wire 1 according to one embodiment of the present invention when the terminal 5 of the terminal-attached electric wire 1 is compressed three times. 図4(a)は、導体3の長手方向に垂直な断面視において、端子5が6角ダイス50により圧縮される前の状態を示す図である。図4(b)は、導体3の長手方向に垂直な断面視において、端子5が6角ダイス50により圧縮された後の状態を示す図である。Fig. 4(a) is a diagram showing a state before the terminal 5 is compressed by the hexagonal die 50 in a cross section perpendicular to the longitudinal direction of the conductor 3. Fig. 4(b) is a diagram showing a state after the terminal 5 is compressed by the hexagonal die 50 in a cross section perpendicular to the longitudinal direction of the conductor 3. 図5(a)は、圧縮部10における導体3の長手方向に垂直な断面視において、端子5が6角ダイス50により圧縮された後の状態を示している。図5(b)は、圧縮部12における導体3の長手方向に垂直な断面視において、端子5が6角ダイス50により圧縮された後の状態を示している。図5(c)は、圧縮部11における導体3の長手方向に垂直な断面視において、端子5が6角ダイス50により圧縮された後の状態を示している。Fig. 5(a) shows the state after the terminal 5 has been compressed by the hexagonal die 50 in a cross-sectional view perpendicular to the longitudinal direction of the conductor 3 in the compressed portion 10. Fig. 5(b) shows the state after the terminal 5 has been compressed by the hexagonal die 50 in a cross-sectional view perpendicular to the longitudinal direction of the conductor 3 in the compressed portion 12. Fig. 5(c) shows the state after the terminal 5 has been compressed by the hexagonal die 50 in a cross-sectional view perpendicular to the longitudinal direction of the conductor 3 in the compressed portion 11. 図6(a)は、断面積が50スケア(sq)の導体3を用いたときの、圧縮部位P1,P2,P3における端子5の断面幅寸法を示した図である。図6(b)は、断面積が200スケア(sq)の導体3を用いたときの、圧縮部位P1,P2,P3における端子5の断面幅寸法を示した図である。図6(c)は、断面積が250スケア(sq)の導体3を用いたときの、圧縮部位P1,P2,P3における端子5の断面幅寸法を示した図である。Fig. 6(a) is a diagram showing the cross-sectional width dimensions of the terminal 5 at the compressed portions P1, P2, and P3 when a conductor 3 with a cross-sectional area of 50 sq. is used. Fig. 6(b) is a diagram showing the cross-sectional width dimensions of the terminal 5 at the compressed portions P1, P2, and P3 when a conductor 3 with a cross-sectional area of 200 sq. is used. Fig. 6(c) is a diagram showing the cross-sectional width dimensions of the terminal 5 at the compressed portions P1, P2, and P3 when a conductor 3 with a cross-sectional area of 250 sq. is used. 図7(a)は、断面積が50スケア(sq)の導体3を用いたときの圧縮部位P2における端子5の突出比率を示した図である。図7(b)は、断面積が200スケア(sq)の導体3を用いたときの圧縮部位P2における端子5の突出比率を示した図である。図7(c)は、断面積が250スケア(sq)の導体3を用いたときの圧縮部位P2における端子5の突出比率を示した図である。Fig. 7(a) is a diagram showing the protrusion ratio of the terminal 5 at the compressed portion P2 when a conductor 3 with a cross-sectional area of 50 sq. Fig. 7(b) is a diagram showing the protrusion ratio of the terminal 5 at the compressed portion P2 when a conductor 3 with a cross-sectional area of 200 sq. Fig. 7(c) is a diagram showing the protrusion ratio of the terminal 5 at the compressed portion P2 when a conductor 3 with a cross-sectional area of 250 sq. 図8は、圧縮部11における導体3の長手方向に垂直な断面視において、端子5が6角ダイス50により圧縮された後の状態を示している。FIG. 8 shows a cross section perpendicular to the longitudinal direction of the conductor 3 at the compressed portion 11 after the terminal 5 has been compressed by a hexagonal die 50 . 図9(a)は、断面積が50スケア(sq)の導体3を用いたときの圧縮部位P2における端子5の規格値を示した図である。図9(b)は、断面積が200スケア(sq)の導体3を用いたときの圧縮部位P2における端子5の規格値を示した図である。図9(c)は、断面積が250スケア(sq)の導体3を用いたときの圧縮部位P2における端子5の規格値を示した図である。Fig. 9(a) is a diagram showing the standard values of the terminal 5 at the compressed portion P2 when a conductor 3 with a cross-sectional area of 50 sq. Fig. 9(b) is a diagram showing the standard values of the terminal 5 at the compressed portion P2 when a conductor 3 with a cross-sectional area of 200 sq. Fig. 9(c) is a diagram showing the standard values of the terminal 5 at the compressed portion P2 when a conductor 3 with a cross-sectional area of 250 sq.

<本発明の一実施形態>
(1)端子付電線1の製造方法例
本実施形態では、例えば、導体3を挿入した端子5に3つの圧縮部10,11,12を形成することにより、端子5を導体3に接続させる端子付電線1を製造する。以下、端子付電線1の製造方法例について説明する。
<One embodiment of the present invention>
(1) Example of Manufacturing Method of Terminal-Attached Electric Wire 1 In this embodiment, for example, three compressed portions 10, 11, and 12 are formed in a terminal 5 into which a conductor 3 is inserted, thereby manufacturing a terminal-attached electric wire 1 for connecting the terminal 5 to the conductor 3. Hereinafter, an example of the manufacturing method of the terminal-attached electric wire 1 will be described.

本実施形態に係る端子付電線1は、電線2と端子5とを準備する工程、導体3を挿入させた状態で端子5を圧縮して、端子5を導体3に接続する工程を順次行うことにより製造する。 The terminal-attached electric wire 1 according to this embodiment is manufactured by sequentially carrying out the steps of preparing the electric wire 2 and the terminal 5, compressing the terminal 5 with the conductor 3 inserted, and connecting the terminal 5 to the conductor 3.

(準備工程)
まず、電線2と端子5とを用意する。以下、電線2と端子5とについて説明し、その後、各工程について説明する。
(Preparation process)
First, prepare the electric wire 2 and the terminal 5. Below, the electric wire 2 and the terminal 5 will be described, and then each process will be described.

(電線)
電線2は、例えば、絶縁電線として構成されており、導体3と、導体3の外周を被覆する絶縁層4とを備えている。
(Electric wire)
The electric wire 2 is configured as, for example, an insulated electric wire, and includes a conductor 3 and an insulating layer 4 that covers the outer periphery of the conductor 3 .

導体3は、電線2の芯線を構成するものである。導体3は、単一の金属線、もしくは複数の金属素線を撚り合わせた撚り線により構成されている。導体3は、例えば、純アルミニウムあるいはアルミニウム合金(以下、これらを「アルミニウム材料」という)により構成されている。 The conductor 3 constitutes the core of the electric wire 2. The conductor 3 is made of a single metal wire or a twisted wire made by twisting together multiple metal wires. The conductor 3 is made of, for example, pure aluminum or an aluminum alloy (hereinafter, these are referred to as "aluminum material").

絶縁層4は、導体3の側方周囲、すなわち、外周を被覆するように設けられている。絶縁層4は、例えば、フッ素系樹脂、オレフィン系樹脂、又はシリコーン系樹脂により構成されている。 The insulating layer 4 is provided so as to cover the lateral periphery, i.e., the outer periphery, of the conductor 3. The insulating layer 4 is made of, for example, a fluorine-based resin, an olefin-based resin, or a silicone-based resin.

(端子)
端子5は、筒状部6と延在部8とを備え、これらが一体的に形成されている。端子5は、例えば、パイプの一端側をプレス加工したものである。この一端側は、延在部8に相当する。あるいは、端子5は、例えば、円柱の母材の一端側を穴あけ加工し、他端側をプレス加工したものである。穴あけ加工された一端側は中空部7に相当する。プレス加工された他端側は延在部8に相当する。中空部7は一方において開口した円筒形状を有する。端子5は、例えば、アルミニウム材料により構成されている。
(Terminal)
The terminal 5 comprises a tubular portion 6 and an extending portion 8, which are integrally formed. The terminal 5 is, for example, formed by pressing one end of a pipe. This one end corresponds to the extending portion 8. Alternatively, the terminal 5 is, for example, formed by drilling one end of a cylindrical base material and pressing the other end. The drilled one end corresponds to the hollow portion 7. The pressed other end corresponds to the extending portion 8. The hollow portion 7 has a cylindrical shape that is open on one side. The terminal 5 is made of, for example, an aluminum material.

筒状部6は、電線2の端末から露出する導体3に接続される部分として構成されている。本実施形態では、筒状部6は、断面円形の筒状に形成されており、内部は、電線2の端部で露出する導体3を挿入可能な中空部7を形成している。 The cylindrical portion 6 is configured as a portion that is connected to the conductor 3 exposed from the end of the electric wire 2. In this embodiment, the cylindrical portion 6 is formed in a cylindrical shape with a circular cross section, and the inside forms a hollow portion 7 into which the conductor 3 exposed at the end of the electric wire 2 can be inserted.

延在部8は、外部の接続相手側の端子やボルト等に接続される部分として構成されている。本実施形態では、延在部8は、板状に形成され、外部の端子やボルト等が挿入されるボルト孔9が設けられている。 The extension 8 is configured as a portion that is connected to an external terminal, bolt, etc., of the other connection side. In this embodiment, the extension 8 is formed in a plate shape and is provided with a bolt hole 9 through which an external terminal, bolt, etc., is inserted.

電線2と端子5とを用意したら、図1に示すように、絶縁層4を電線2の長さ方向の端末から所定の長さだけ取り除いて、導体3の一部を露出させる。その後、図2に示すように、端子5の筒状部6に形成された中空部7内に電線2の導体3の露出した一部を挿入する。 After preparing the electric wire 2 and the terminal 5, as shown in Figure 1, a predetermined length of the insulating layer 4 is removed from the longitudinal end of the electric wire 2 to expose a portion of the conductor 3. Then, as shown in Figure 2, the exposed portion of the conductor 3 of the electric wire 2 is inserted into the hollow portion 7 formed in the cylindrical portion 6 of the terminal 5.

(圧縮・接続工程)
続いて、図3に示すように、端子5の中空部7内に電線2の導体3の露出した一部を挿入した状態で、圧縮部位P1を圧縮して、圧縮部10を形成する。その後、圧縮部位P3を圧縮して、圧縮部12を形成する。最後に、圧縮部位P1と圧縮部位P3との間の圧縮部位P2を圧縮して、圧縮部11を形成することにより、端子5を導体3に接続する。なお、圧縮部10~12を形成する際に用いられる圧縮治具(6角ダイス50)は、導体3の圧縮比が50%以上95%以下となるようなサイズ・形状であることが好ましい。ここで、圧縮比とは、中空部7内に導体3が挿入された端子5が圧縮されたときの、導体3の長手方向に垂直な断面における、端子5の非圧縮部に対応する導体3の断面積と圧縮部に対応する導体3の断面積の比である。端子5の非圧縮部に対応する導体3の断面積及び圧縮部に対応する導体3の断面積をそれぞれC1(mm)、C2(mm)とした場合に、(C2/C1)×100の式で算出される。
(Compression and connection process)
3, the compressed portion P1 is compressed to form the compressed portion 10 while the exposed portion of the conductor 3 of the electric wire 2 is inserted into the hollow portion 7 of the terminal 5. Then, the compressed portion P3 is compressed to form the compressed portion 12. Finally, the compressed portion P2 between the compressed portion P1 and the compressed portion P3 is compressed to form the compressed portion 11, thereby connecting the terminal 5 to the conductor 3. The compression jig (hexagonal die 50) used to form the compressed portions 10 to 12 is preferably sized and shaped so that the compression ratio of the conductor 3 is 50% or more and 95% or less. Here, the compression ratio is the ratio of the cross-sectional area of the conductor 3 corresponding to the non-compressed portion of the terminal 5 to the cross-sectional area of the conductor 3 corresponding to the compressed portion in a cross section perpendicular to the longitudinal direction of the conductor 3 when the terminal 5 with the conductor 3 inserted in the hollow portion 7 is compressed. When the cross-sectional area of the conductor 3 corresponding to the uncompressed portion of the terminal 5 and the cross-sectional area of the conductor 3 corresponding to the compressed portion are C1 (mm 2 ) and C2 (mm 2 ), respectively, the resistance is calculated by the formula (C2/C1)×100.

これらの圧縮は、例えば、圧縮冶具を用いて、圧縮部位P1~P3に筒状部6の周方向の全周にわたって所定の圧力を加え、筒状部6を圧縮変形(塑性変形)させることにより行う。なお、圧縮部10~12を形成する際に用いる圧縮治具は同一である。 These compressions are performed, for example, by using a compression tool to apply a predetermined pressure to the compressed areas P1 to P3 around the entire circumference of the cylindrical portion 6, thereby compressively deforming (plastically deforming) the cylindrical portion 6. Note that the same compression tool is used when forming the compressed portions 10 to 12.

このように、既に形成された隣り合う圧縮部10と圧縮部12との間に、最後(3つ目)の圧縮部12を形成することにより、圧縮後長時間にわたり、導体3と端子5との間の電気抵抗を低く維持することができる。 In this way, by forming the final (third) compressed section 12 between the adjacent compressed sections 10 and 12 already formed, the electrical resistance between the conductor 3 and the terminal 5 can be maintained low for a long period of time after compression.

しかしながら、このような順番で端子を圧縮しても、従来の端子付電線では、圧縮後に、圧縮部が所望の圧縮順で圧縮されたかを容易に確認することが困難な場合があった。そこで、本実施形態では、例えば、図4(a),(b)に示すように、収容溝50A,50Bが設けられた6角ダイス50により、端子5の圧縮を行うものとする。 However, even if the terminals are compressed in this order, in conventional terminal-attached electric wires, it can be difficult to easily check whether the compressed parts have been compressed in the desired order after compression. Therefore, in this embodiment, the terminals 5 are compressed using a hexagonal die 50 with housing grooves 50A and 50B, as shown in Figures 4(a) and 4(b).

以下、6角ダイス50の構成について説明し、6角ダイス50を用いた端子5の圧縮・接続工程についてより具体的に説明する。 The configuration of the hexagonal die 50 is explained below, and the compression and connection process of the terminal 5 using the hexagonal die 50 is explained in more detail.

図4(a)は、導体3の長手方向に垂直な断面視において、端子5が6角ダイス50により圧縮される前の状態を示している。6角ダイス50は、相互に向かい合う一対のダイス本体20,30により構成されている。ダイス本体20,30の間に端子5の筒状部6を配置し、ダイス本体20,30を相互に突き合わせて、圧縮部位P1~P3を圧縮することにより、圧縮部10~12を形成する。ダイス本体20,30を突き合わせたときに、ダイス本体20とダイス本体30とが接触する2つの面を、それぞれ、ダイス本体20,30の突き合わせ面41,42という。 Figure 4 (a) shows the state of the terminal 5 before it is compressed by the hexagonal die 50 in a cross section perpendicular to the longitudinal direction of the conductor 3. The hexagonal die 50 is composed of a pair of die bodies 20, 30 facing each other. The cylindrical portion 6 of the terminal 5 is placed between the die bodies 20, 30, and the die bodies 20, 30 are butted against each other to compress the compressed portions P1-P3, thereby forming compressed portions 10-12. When the die bodies 20, 30 are butted against each other, the two surfaces where the die body 20 and the die body 30 come into contact are called butting surfaces 41, 42 of the die bodies 20, 30, respectively.

ダイス本体20は、筒状部6の全外周面を構成する2つの半周面部のうちの一方の半周面部を圧縮する押圧部21を有している。同様に、ダイス本体30は、筒状部6の他方の半周面部を圧縮する押圧部31を有している。押圧部21は、ダイス本体20,30を突き合わせたときに、筒状部6の一方の半周面に接触する3つの押圧面21a,21b,21cを備えている。同様に、押圧部31は、ダイス本体20,30を突き合わせたときに、筒状部6の他方の半周面に接触する3つの押圧面31a,31b,31cを備えている。ダイス本体20における3つの押圧面21a,21b,21cは、配置される端子5の周方向(図4(a)の矢印A参照)に沿って連続して設けられており、隣り合う押圧面は、所要の角度(例えば120°)を有して構成されている。同様に、ダイス本体30における3つの押圧面31a,31b,31cは、配置される端子5の周方向(図4(a)の矢印A参照)に沿って連続して設けられており、隣り合う押圧面は、所要の角度(例えば120°)を有して構成されている。以下では、押圧面21aと押圧面31c、押圧面21bと押圧面31b、押圧面21cと押圧面31a、をそれぞれ一対の押圧面という。 The die body 20 has a pressing portion 21 that compresses one of the two semi-circumferential surfaces that constitute the entire outer circumferential surface of the cylindrical portion 6. Similarly, the die body 30 has a pressing portion 31 that compresses the other semi-circumferential surface of the cylindrical portion 6. The pressing portion 21 has three pressing surfaces 21a, 21b, and 21c that contact one semi-circumferential surface of the cylindrical portion 6 when the die bodies 20 and 30 are butted together. Similarly, the pressing portion 31 has three pressing surfaces 31a, 31b, and 31c that contact the other semi-circumferential surface of the cylindrical portion 6 when the die bodies 20 and 30 are butted together. The three pressing surfaces 21a, 21b, and 21c in the die body 20 are continuously provided along the circumferential direction of the terminal 5 to be placed (see arrow A in FIG. 4(a)), and adjacent pressing surfaces are configured to have a required angle (for example, 120°). Similarly, the three pressing surfaces 31a, 31b, and 31c on the die body 30 are provided continuously along the circumferential direction of the terminal 5 to be placed (see arrow A in FIG. 4(a)), and adjacent pressing surfaces are configured to have a required angle (e.g., 120°). Hereinafter, pressing surface 21a and pressing surface 31c, pressing surface 21b and pressing surface 31b, and pressing surface 21c and pressing surface 31a are each referred to as a pair of pressing surfaces.

図4(b)に示すように、6角ダイス50におけるダイス本体20,30の突き合わせ面41と、一対の押圧面21a,31cとの間には、圧縮部を形成する際に生じる突出形状部5aを収容する収容溝50Aが設けられている。同様に、6角ダイス50におけるダイス本体20,30の突き合わせ面42と、一対の押圧面21c,31aとの間には、圧縮部10~12を形成する際に生じる突出形状部5bを収容する収容溝50Bが設けられている。収容溝50A,50Bは、突出形状部5a,5bを収容できる充分な大きさに構成されている。突出形状部5a,5bの詳細については後述する。 As shown in FIG. 4(b), an accommodation groove 50A is provided between the butt surfaces 41 of the die bodies 20 and 30 of the hexagonal die 50 and the pair of pressing surfaces 21a and 31c to accommodate the protruding portion 5a that is generated when forming the compressed portion. Similarly, an accommodation groove 50B is provided between the butt surfaces 42 of the die bodies 20 and 30 of the hexagonal die 50 and the pair of pressing surfaces 21c and 31a to accommodate the protruding portion 5b that is generated when forming the compressed portions 10 to 12. The accommodation grooves 50A and 50B are configured to be large enough to accommodate the protruding portions 5a and 5b. The details of the protruding portions 5a and 5b will be described later.

上述した6角ダイス50を用いた端子5の圧縮・接続工程について説明する。所定の距離をとった状態で対向配置されているダイス本体20とダイス本体30との間に端子5(筒状部6)をセットする。その後、例えば、図4(a)に示す白抜き矢印の方向(圧縮方向)に、ダイス本体20を移動させ、ダイス本体20とダイス本体30とを突き合わせる。これにより、6つの押圧面21a,21b,21c,31a,31b,31cが端子5の外周面を押圧し、端子5を径方向の内側に塑性変形させ、端子5と導体3とを圧着接続させる。このとき、端子5の一部が径方向の外側へ突出し、突出形状部5a,5bを形成する。突出形状部5a,5bは、それぞれ、収容溝50A,50B内に収容される。突出形状部5a,5bは、ダイス本体20,30によって端子5が加締められる(圧縮される)際、圧縮方向に対して略直交する方向に端子5の一部が塑性変形したものである。 The compression and connection process of the terminal 5 using the above-mentioned hexagonal die 50 will be described. The terminal 5 (cylindrical portion 6) is set between the die body 20 and the die body 30, which are arranged facing each other with a predetermined distance between them. Then, for example, the die body 20 is moved in the direction of the white arrow (compression direction) shown in FIG. 4(a) to butt the die body 20 and the die body 30 together. As a result, the six pressing surfaces 21a, 21b, 21c, 31a, 31b, and 31c press the outer peripheral surface of the terminal 5, plastically deforming the terminal 5 radially inward, and crimping and connecting the terminal 5 and the conductor 3. At this time, a part of the terminal 5 protrudes radially outward to form the protruding portions 5a and 5b. The protruding portions 5a and 5b are accommodated in the accommodation grooves 50A and 50B, respectively. The protruding portions 5a and 5b are formed when a portion of the terminal 5 is plastically deformed in a direction approximately perpendicular to the compression direction when the terminal 5 is crimped (compressed) by the die bodies 20 and 30.

圧縮部位P1~P3において、このような圧縮を行うことにより、端子5を導体3に圧着接続させ、端子付電線1を得ることができる。 By performing this type of compression at compression areas P1 to P3, the terminal 5 can be crimped and connected to the conductor 3, and the terminal-attached electric wire 1 can be obtained.

(2)端子付電線1の構成例
以下、上述した製造方法で得られた端子付電線1の構成例について説明する。
(2) Configuration Examples of the Terminal-Attached Electric Wire 1 Hereinafter, configuration examples of the terminal-attached electric wire 1 obtained by the above-described manufacturing method will be described.

端子5には、3つの圧縮部10~12が、筒状部6の軸方向(中空部7内に挿入されている導体3の長さ方向)に対して位置をずらして、それぞれ重ならないように形成されている。圧縮部10~12は、導体3の長手方向(軸方向)に垂直な断面において略6角形の断面形状を有している。圧縮部11は、筒状部6の軸方向の中央付近に形成されており、圧縮部10,12は、圧縮部11を両側から挟むように形成されている。 The terminal 5 has three compression sections 10-12, which are offset in position with respect to the axial direction of the tubular section 6 (the length direction of the conductor 3 inserted in the hollow section 7) and are formed so as not to overlap each other. The compression sections 10-12 have a substantially hexagonal cross-sectional shape in a cross section perpendicular to the longitudinal direction (axial direction) of the conductor 3. The compression section 11 is formed near the center of the axial direction of the tubular section 6, and the compression sections 10 and 12 are formed so as to sandwich the compression section 11 from both sides.

図5(a),(b),(c)は、それぞれ、圧縮部位P1,P3,P2における導体3の長手方向に垂直な断面視において、端子5が6角ダイス50により圧縮された後の状態を示している。端子5が圧縮されるときは、端子5(導体3)の径方向の内側だけでなく、長手方向(軸方向)にも力が生じる。3つ目の圧縮部11が形成されるときに生じる端子5が長手方向へ伸びる力は、既に形成されている2つの圧縮部10,12によって抑制される。このため、抑制されて端子5の長手方向へと伸びる力は、端子5の径方向の外側へ変換され、突出形状部5a,5bの突出量として反映される。具体的には、図5(a)~(c)に示すように、圧縮時に端子5の長手方向へと伸びる力があまり規制されない、1番目、2番目に形成される圧縮部10,12における突出形状部5a,5bの突出量よりも、圧縮部10,12の間に3番目に形成される圧縮部11における突出形状部5a,5bの突出量の方が大きくなっている。 5(a), (b), and (c) show the state after the terminal 5 is compressed by the hexagonal die 50 in a cross section perpendicular to the longitudinal direction of the conductor 3 at the compression sites P1, P3, and P2, respectively. When the terminal 5 is compressed, a force is generated not only in the radially inward direction of the terminal 5 (conductor 3) but also in the longitudinal direction (axial direction). The force that causes the terminal 5 to stretch in the longitudinal direction when the third compression portion 11 is formed is suppressed by the two compression portions 10 and 12 that have already been formed. Therefore, the suppressed force that causes the terminal 5 to stretch in the longitudinal direction is converted to the radially outward direction of the terminal 5 and is reflected as the protrusion amount of the protruding portions 5a and 5b. Specifically, as shown in Figures 5(a) to (c), the amount of protrusion of the protruding portions 5a and 5b in the third compressed portion 11 formed between the compressed portions 10 and 12 is greater than the amount of protrusion of the protruding portions 5a and 5b in the first and second compressed portions 10 and 12, where the force of the terminal 5 stretching in the longitudinal direction during compression is not restricted as much.

上述したように、突出形状部5a,5bの突出量は、圧縮部10~12の圧縮部位、圧縮順により相違する。収容溝50A,50Bは、突出形状部5a,5bを収容できる充分な大きさに構成されているので、端子5(導体3)の長手方向に垂直な断面視において、突出形状部5a,5bの突出部分を含む端子5の断面幅寸法(以下、単に「断面幅寸法」という。)は、突出形状部5a,5bの突出量が反映される。具体的には、図5(a)~(c)に示すように、突出形状部5a,5bの突出量が小さい圧縮部位P1(圧縮部10)、圧縮部位P3(圧縮部12)の断面幅寸法よりも、突出形状部5a,5bの突出量が大きい圧縮部位P2(圧縮部11)の断面幅寸法の方が大きくなっている。 As described above, the amount of protrusion of the protruding portions 5a and 5b varies depending on the compression positions and compression order of the compressed portions 10 to 12. The accommodation grooves 50A and 50B are configured to be large enough to accommodate the protruding portions 5a and 5b, so that in a cross-sectional view perpendicular to the longitudinal direction of the terminal 5 (conductor 3), the cross-sectional width dimension of the terminal 5 including the protruding portions of the protruding portions 5a and 5b (hereinafter simply referred to as the "cross-sectional width dimension") reflects the amount of protrusion of the protruding portions 5a and 5b. Specifically, as shown in Figures 5(a) to (c), the cross-sectional width dimension of the compressed portion P2 (compressed portion 11), where the amount of protrusion of the protruding portions 5a and 5b is large, is larger than the cross-sectional width dimensions of the compressed portion P1 (compressed portion 10) and compressed portion P3 (compressed portion 12), where the amount of protrusion of the protruding portions 5a and 5b is small.

(3)本実施形態の効果
本実施形態によれば、以下に述べる一つ又は複数の効果を奏する。
(3) Advantages of the Present Embodiment According to the present embodiment, one or more of the following advantages are achieved.

(a)3つの圧縮部10~12における端子5には、それぞれ、圧縮された順番に応じて突出量が異なる突出形状部5a,5bが形成されることにより、圧縮部10~12の突出形状部5a,5bの突出量を確認するだけで、所望の圧縮順で圧縮されたか容易に調べることが可能となる。 (a) The terminals 5 in the three compressed sections 10 to 12 are formed with protruding portions 5a, 5b whose protruding amount varies depending on the order of compression. This makes it easy to check whether the compression was performed in the desired order simply by checking the protruding amount of the protruding portions 5a, 5b in the compressed sections 10 to 12.

(b)端子5が所望の圧縮順で圧縮された場合、すなわち、端子5が圧縮部位P1,P3,P2の順で圧縮された場合は、圧縮部11を両側から挟むように形成される圧縮部10,12における突出形状部5a,5bの突出量よりも、圧縮部11における突出形状部5a,5bの突出量の方が大きく形成されることにより、これらの突出形状部5a,5bの突出量を視認、計測するだけで、容易にかつ確実に所望の圧縮順で圧縮されたか容易に調べることが可能となる。 (b) When the terminal 5 is compressed in the desired compression order, i.e., when the terminal 5 is compressed in the order of compression portions P1, P3, P2, the amount of protrusion of the protruding portions 5a, 5b in the compressed portion 11 is greater than the amount of protrusion of the protruding portions 5a, 5b in the compressed portions 10, 12 that are formed to sandwich the compressed portion 11 from both sides. This makes it possible to easily and reliably check whether the terminal 5 is compressed in the desired compression order by simply visually checking and measuring the amount of protrusion of the protruding portions 5a, 5b.

(4)変形例
以上、本発明の実施形態について具体的に説明したが、本発明は上述の実施形態に限定されるものではなく、その要旨を逸脱しない範囲で種々変更可能である。
(4) Modifications Although the embodiments of the present invention have been specifically described above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

上述の実施形態では、圧縮部10~12を形成するにあたり、圧縮部位P1を最初に圧縮し、次に圧縮部位P3を圧縮したが、これに限定されるものではなく、圧縮部位P1と圧縮部位P3の間のP2を最後に圧縮するのであれば、圧縮部位P3を最初に圧縮し、次に圧縮部位P1を圧縮してもよい。この場合でも、上述した実施形態と同様の効果を得ることができる。 In the above embodiment, when forming the compressed sections 10 to 12, the compressed area P1 is compressed first, and then the compressed area P3 is compressed. However, this is not limited to this, and as long as P2 between the compressed areas P1 and P3 is compressed last, the compressed area P3 may be compressed first, and then the compressed area P1. Even in this case, the same effect as in the above embodiment can be obtained.

上述の実施形態では、圧縮部が3つ(圧縮箇所が3か所)である場合を例に挙げたが、これに限定されることはなく、例えば、端子5が4か所、または5か所圧縮されてもよい。4か所圧縮する場合には、4番目に形成される圧縮部は、既に形成された複数の圧縮部のうちの隣り合う2つの圧縮部の間に形成されることが好ましい。また、端子5を5か所圧縮する場合には、5番目に形成される圧縮部は、既に形成された複数の圧縮部のうちの隣り合う2つの圧縮部の間に形成されることが好ましい。これらの場合でも、上述した実施形態と略同様の効果を得ることができる。 In the above-described embodiment, an example is given in which there are three compressed sections (three compressed locations), but this is not limiting, and for example, the terminal 5 may be compressed in four or five locations. When compressing in four locations, it is preferable that the fourth compressed section be formed between two adjacent compressed sections of the multiple compressed sections already formed. Furthermore, when compressing the terminal 5 in five locations, it is preferable that the fifth compressed section be formed between two adjacent compressed sections of the multiple compressed sections already formed. Even in these cases, it is possible to obtain substantially the same effects as the above-described embodiment.

上述の実施形態では特に限定されていないが、圧縮部10~12はそれぞれ等間隔で設けられていることが好ましい。 Although not particularly limited in the above embodiment, it is preferable that the compression sections 10 to 12 are each provided at equal intervals.

上述の実施形態では、圧縮部10~12は、導体3の長手方向(軸方向)に垂直な断面において略6角形の断面形状を有している場合を例に挙げて説明したが、これに限定されることはなく、他の多角形状を有していてもよいし、円形状を有していてもよい。 In the above embodiment, the compressed sections 10 to 12 have a substantially hexagonal cross-sectional shape in a cross section perpendicular to the longitudinal direction (axial direction) of the conductor 3, but this is not limited thereto and may have another polygonal shape or may have a circular shape.

上述の実施形態では、端子付電線を例に挙げて説明したが、これに限定されることはなく、例えば端子付きケーブルにも適用可能である。 In the above embodiment, a terminal-equipped electric wire is used as an example, but the present invention is not limited to this and can also be applied to, for example, a terminal-equipped cable.

上述の実施形態では、電線2は、導体3と、導体3の外周を被覆する絶縁層4とを備える絶縁電線を例に挙げて説明したが、これに限定されることはなく、例えば導体3の外周を被覆する絶縁層4を有さない、いわゆる裸電線を使用してもよい。この場合でも、上述した実施形態と略同様の効果を得ることができる。 In the above embodiment, the wire 2 is described as an insulated wire having a conductor 3 and an insulating layer 4 covering the outer periphery of the conductor 3, but the wire is not limited to this, and for example, a so-called bare wire that does not have an insulating layer 4 covering the outer periphery of the conductor 3 may be used. Even in this case, it is possible to obtain substantially the same effect as in the above embodiment.

次に、本発明について実験例に基づき、さらに詳細に説明するが、本発明はこれらの実験例に限定されない。 Next, the present invention will be described in more detail based on experimental examples, but the present invention is not limited to these experimental examples.

(実験例1)
実験例1では、導体3を挿入した端子5を複数用意して、一対のダイス本体20,30により、圧縮部位P1,P3,P2、圧縮部位P3,P1,P2、圧縮部位P2,P1,P3、圧縮部位P2,P3,P1の順でそれぞれ圧縮し、サンプル1,2,3,4とした。端子5及び導体3は、同組成のアルミニウム材料を使用した。サンプル1~4を作製した後、端子5(導体3)の長手方向に垂直な断面視において、圧縮部位P1,P2,P3における断面幅寸法を計測した。圧縮部位P1,P2,P3を形成する際に使用する圧縮治具は同じであり、導体3の圧縮比が80~90%となるような6角ダイスとした。
(Experimental Example 1)
In Experimental Example 1, a plurality of terminals 5 with conductors 3 inserted therein were prepared and compressed by a pair of die bodies 20 and 30 in the order of compressed portions P1, P3, P2, compressed portions P3, P1, P2, compressed portions P2, P1, P3, and compressed portions P2, P3, P1, to obtain Samples 1, 2, 3, and 4. The terminals 5 and the conductors 3 were made of aluminum material having the same composition. After the samples 1 to 4 were produced, the cross-sectional width dimensions of the compressed portions P1, P2, and P3 were measured in a cross-sectional view perpendicular to the longitudinal direction of the terminals 5 (conductors 3). The compression tool used to form the compressed portions P1, P2, and P3 was the same, and a hexagonal die was used so that the compression ratio of the conductors 3 was 80 to 90%.

圧縮部位P1,P2,P3における断面幅寸法の計測結果を図6(a)~(c)に示す。図6(a)~(c)は、それぞれ、断面積が50スケア(sq)、200スケア(sq)、250スケア(sq)の導体3を使用したときの結果を示している。図6(a)~(c)の横軸は、端子5の圧縮部位を示しており、左側は圧縮部位P1、真ん中は圧縮部位P2、右側は圧縮部位P3を示している。図6(a)~(c)の縦軸は、それぞれの圧縮部位における断面幅寸法の長さを示している。サンプル1の断面幅寸法を点線、サンプル2の断面幅寸法を実線、サンプル3の断面幅寸法を破線、サンプル4の断面幅寸法を長破線で示した。 The results of measuring the cross-sectional width at the compressed portions P1, P2, and P3 are shown in Figures 6(a) to (c). Figures 6(a) to (c) show the results when using conductors 3 with cross-sectional areas of 50 sq., 200 sq., and 250 sq., respectively. The horizontal axis in Figures 6(a) to (c) shows the compressed portions of the terminal 5, with the left side showing compressed portion P1, the middle showing compressed portion P2, and the right side showing compressed portion P3. The vertical axis in Figures 6(a) to (c) shows the length of the cross-sectional width at each compressed portion. The cross-sectional width of sample 1 is shown by a dotted line, the cross-sectional width of sample 2 by a solid line, the cross-sectional width of sample 3 by a dashed line, and the cross-sectional width of sample 4 by a long dashed line.

サンプル番号と圧縮の順番との関係等を下記表1にまとめた。 The relationship between sample numbers and compression order is summarized in Table 1 below.

Figure 0007596902000001
Figure 0007596902000001

図6(a)~(c)に示すように、いずれの太さの導体3を使用した場合でも、最後に形成する圧縮部11を、既に形成した隣り合う2つの圧縮部10,12の間に形成するサンプル1,2の圧縮部位P2における断面幅寸法は、圧縮部位P1,P3における断面幅寸法よりも顕著に大きくなることが確認された。 As shown in Figures 6(a) to (c), it was confirmed that regardless of the thickness of the conductor 3 used, the cross-sectional width dimension of the compressed portion P2 of samples 1 and 2, in which the compressed portion 11 to be finally formed is formed between two adjacent compressed portions 10 and 12 that have already been formed, is significantly larger than the cross-sectional width dimensions of the compressed portions P1 and P3.

(実験例2)
実験例2では、導体3を挿入した端子5を用意して、一対のダイス本体20,30により、圧縮部位P1,P3,P2、圧縮部位P3,P1,P2、圧縮部位P1,P2,P3、圧縮部位P3,P2,P1、圧縮部位P2,P1,P3、圧縮部位P2,P3,P1の順でそれぞれ圧縮し、サンプル5,6,7,8,9,10とした。サンプル5~10をそれぞれ4つずつ作製した。端子5及び導体3は、実験例1と同様に同組成のアルミニウム材料を使用した。また、圧縮治具及び圧縮比は、実験1と同じとした。
(Experimental Example 2)
In Experimental Example 2, a terminal 5 with a conductor 3 inserted therein was prepared, and compressed by a pair of die bodies 20 and 30 in the order of compressed portions P1, P3, P2, P3, P1, P2, P1, P2, P3, P3, P2, P1, P2, P1, P1, P3, P2, P3, P1, to obtain Samples 5, 6, 7, 8, 9, and 10. Four samples each of Samples 5 to 10 were produced. The terminal 5 and the conductor 3 were made of aluminum material with the same composition as in Experimental Example 1. The compression jig and compression ratio were the same as in Experiment 1.

サンプル番号と圧縮の順番との関係を下記表2にまとめた。 The relationship between sample number and compression order is summarized in Table 2 below.

Figure 0007596902000002
Figure 0007596902000002

サンプル5~10を作製した後、端子5(導体3)の長手方向に垂直な断面視において、圧縮部位P1,P2,P3における断面幅寸法を、それぞれA,B,Cとした場合に(図5(a)~(c)参照)、Bの突出比率(%)を計算した。Bの突出比率(%)は、具体的には、圧縮部位P1,P3における断面幅寸法に対する圧縮部位P2における断面幅寸法の突出比率のことであり、{(2×B-(A+C))/(2×B)}×100の式で算出した。 After samples 5 to 10 were produced, the cross-sectional width dimensions of compressed portions P1, P2, and P3 in a cross-sectional view perpendicular to the longitudinal direction of terminal 5 (conductor 3) were designated A, B, and C, respectively (see Figures 5(a) to (c)), and the protrusion ratio (%) of B was calculated. Specifically, the protrusion ratio (%) of B is the protrusion ratio of the cross-sectional width dimension of compressed portion P2 to the cross-sectional width dimension of compressed portions P1 and P3, and was calculated using the formula {(2 x B - (A + C)) / (2 x B)} x 100.

算出結果を図7(a)~(c)に示す。図7(a)~(c)は、それぞれ、断面積が50スケア(sq)、200スケア(sq)、250スケア(sq)の導体3を使用したときの結果を示している。図7(a)~(c)の横軸は、サンプル番号を示している。図7(a)~(c)の縦軸は、Bの突出比率(%)を示している。 The calculation results are shown in Figures 7(a) to (c). Figures 7(a) to (c) show the results when using conductors 3 with cross-sectional areas of 50 sq., 200 sq., and 250 sq., respectively. The horizontal axis of Figures 7(a) to (c) indicates the sample number. The vertical axis of Figures 7(a) to (c) indicates the protrusion ratio (%) of B.

図7(a)~(c)に示すように、いずれの太さの導体3を使用した場合でも、最後に形成する圧縮部11を、既に形成した隣り合う2つの圧縮部10,12の間に形成するサンプル5,6のBの突出比率(%)は、4.2%より大きいことが確認された。他のサンプル7~10におけるBの突出比率(%)は、4.2%以下であることが確認された。 As shown in Figures 7(a) to (c), it was confirmed that the protrusion ratio (%) of B in samples 5 and 6, in which the final compressed section 11 is formed between two adjacent compressed sections 10 and 12 that have already been formed, is greater than 4.2%, regardless of the thickness of the conductor 3 used. It was confirmed that the protrusion ratio (%) of B in the other samples 7 to 10 is 4.2% or less.

(実験例3)
実験例3では、導体3を挿入した端子5を用意して、一対のダイス本体20,30により、圧縮部位P1,P3,P2、圧縮部位P3,P1,P2、圧縮部位P1,P2,P3、圧縮部位P3,P2,P1、圧縮部位P2,P1,P3、圧縮部位P2,P3,P1の順でそれぞれ圧縮し、サンプル11,12,13,14,15,16とした。サンプル11~16をそれぞれ1つずつ作製した。端子5及び導体3は、実験例1と同様に同組成のアルミニウム材料を使用した。また、圧縮治具及び圧縮比は、実験1と同じとした。
(Experimental Example 3)
In Experimental Example 3, a terminal 5 with a conductor 3 inserted therein was prepared, and compressed by a pair of die bodies 20 and 30 in the order of compressed portions P1, P3, P2, P3, P1, P2, P1, P2, P3, P3, P2, P1, P2, P1, P1, P3, P2, P3, P1, to obtain Samples 11, 12, 13, 14, 15, and 16. One each of Samples 11 to 16 was produced. The terminal 5 and the conductor 3 were made of aluminum material with the same composition as in Experimental Example 1. The compression jig and compression ratio were the same as in Experiment 1.

サンプル番号と圧縮の順番との関係を下記表3にまとめた。 The relationship between sample number and compression order is summarized in Table 3 below.

Figure 0007596902000003
Figure 0007596902000003

Bの突出比率は、ダイス本体20の押圧面21bとダイス本体30の押圧面31b間の 距離や収容溝50A,50Bの大きさと相関関係を有している。端子5(導体3)の長手 方向に垂直な断面視において、圧縮部位P2における上端と下端間の距離である断面高さ 寸法X(図8参照)が小さくなる(大きく圧縮させる)につれて、Bの突出比率も大きく なる。また、端子5(導体3)の長手方向に垂直な断面視において、突出形状部5a,5 bにおける突出形状部高さ寸法を、t1,t2とした場合に(図8参照)、t1,t2が 小さくなるにつれて、Bの突出比率も大きくなる。そこで、Bの高さ比率をX/T(ただし、T=(t1+t2)/2)で算出し、Bの突出比率/Bの高さ比率(以下、規格値という)を算出した。 The protrusion ratio of B is correlated with the distance between the pressing surface 21b of the die body 20 and the pressing surface 31b of the die body 30 and the size of the accommodation grooves 50A, 50B. In a cross-sectional view perpendicular to the longitudinal direction of the terminal 5 (conductor 3), the protrusion ratio of B increases as the cross-sectional height dimension X (see FIG. 8), which is the distance between the upper end and the lower end of the compressed portion P2, decreases (the greater the compression). In addition, in a cross-sectional view perpendicular to the longitudinal direction of the terminal 5 (conductor 3), if the protrusion height dimensions of the protruding portions 5a, 5b are t1, t2 (see FIG. 8), the protrusion ratio of B increases as t1, t2 decreases. Therefore, the height ratio of B was calculated as X/T (where T=(t1+t2)/2), and the protrusion ratio of B/height ratio of B (hereinafter referred to as the standard value) was calculated.

算出結果を図9(a)~(c)に示す。図9(a)~(c)は、それぞれ、断面積が50スケア(sq)、200スケア(sq)、250スケア(sq)の導体3を使用したときの結果を示している。図9(a)~(c)の横軸は、サンプル番号を示している。図9(a)~(c)の縦軸は、規格値を示している。 The calculation results are shown in Figures 9(a) to (c). Figures 9(a) to (c) show the results when using conductors 3 with cross-sectional areas of 50 sq., 200 sq., and 250 sq., respectively. The horizontal axis in Figures 9(a) to (c) shows the sample number. The vertical axis in Figures 9(a) to (c) shows the standard value.

図9(a)~(c)に示すように、いずれの太さの導体3を使用した場合でも、最後に形成する圧縮部11を、既に形成した隣り合う2つの圧縮部10,12の間に形成するサンプル11,12の規格値は、0.7以上であることが確認された。他のサンプル13~16における規格値は、0.7未満であることが確認された
(5)本発明の好ましい態様
以下、本発明の好ましい態様について付記する。
9(a) to (c), it was confirmed that the standard value of samples 11 and 12, in which the last compressed portion 11 was formed between two adjacent compressed portions 10 and 12 already formed, was 0.7 or more, regardless of the thickness of the conductor 3 used. It was confirmed that the standard values of the other samples 13 to 16 were less than 0.7. (5) Preferred aspects of the present invention The following additionally describes preferred aspects of the present invention.

(付記1)
本発明の一態様によれば、
導体を有する電線と、
前記導体が挿入された状態で圧縮されることにより、前記導体に接続される端子と、
を備える端子付電線であって、
前記端子は、前記導体の長手方向に沿って3つ以上の圧縮部を有し、
前記3つ以上の圧縮部には、それぞれ、圧縮された順番に応じて突出量が異なる突出形状部が、前記端子の一部として形成されている、
端子付電線が提供される。
(Appendix 1)
According to one aspect of the present invention,
An electric wire having a conductor;
a terminal connected to the conductor by being compressed in an inserted state;
A terminal-attached electric wire comprising:
The terminal has three or more compression portions along a longitudinal direction of the conductor,
a protruding portion having a different protruding amount depending on the order of compression of each of the three or more compressed portions is formed as a part of the terminal;
A terminated wire is provided.

(付記2)
好ましくは、
前記端子は、前記導体の長手方向に沿って3つの圧縮部を有する、
付記1に記載の端子付電線が提供される。
(Appendix 2)
Preferably,
The terminal has three compression portions along the longitudinal direction of the conductor.
The terminal-equipped electric wire according to claim 1 is provided.

(付記3)
好ましくは、
前記3つ以上の圧縮部のうち、1つの圧縮部と、前記1つの圧縮部を両側から挟む2つの圧縮部とについて、
前記2つの圧縮部における突出形状部の突出量よりも、前記1つの圧縮部における突出形状部の突出量の方が大きい、
付記1または2に記載の端子付電線が提供される。
(Appendix 3)
Preferably,
Among the three or more compression sections, one compression section and two compression sections sandwiching the one compression section from both sides are
a protruding amount of the protruding portion in the one compressed portion is larger than a protruding amount of the protruding portion in the two compressed portions;
The terminal-equipped electric wire according to claim 1 or 2 is provided.

(付記4)
好ましくは、
前記3つ以上の圧縮部はそれぞれ、一対のダイスが向かい合う方向から前記端子を圧縮することにより形成されており、
複数の前記突出形状部は、それぞれ、前記一対のダイスの圧縮方向に対して直交する方向に形成されており、
前記導体の長手方向に垂直な断面視において、
前記2つの圧縮部における、前記突出形状部の突出部分を含む前記端子の断面幅寸法を、それぞれA、Cとし、前記2つの圧縮部の間に形成された圧縮部における、前記突出形状部の突出部分を含む前記端子の断面幅寸法をBとした場合に、{(2×B-(A+C))/(2×B)}×100の式で算出されるBの突出比率(%)が4.2%より大きい、
付記3に記載の端子付電線が提供される。
(Appendix 4)
Preferably,
the three or more compression portions are each formed by compressing the terminal from opposite directions using a pair of dies;
The plurality of protruding portions are each formed in a direction perpendicular to a compression direction of the pair of dies,
In a cross-sectional view perpendicular to the longitudinal direction of the conductor,
When the cross-sectional width dimensions of the terminal including the protruding portion of the protruding shape portion in the two compressed portions are A and C, respectively, and the cross-sectional width dimension of the terminal including the protruding portion of the protruding shape portion in the compressed portion formed between the two compressed portions is B, the protrusion ratio (%) of B calculated by the formula {(2×B−(A+C))/(2×B)}×100 is greater than 4.2%;
The terminal-equipped electric wire according to claim 3 is provided.

(付記5)
好ましくは、
前記3つ以上の圧縮部はそれぞれ、一対のダイスが向かい合う方向から前記端子を圧縮することにより形成されており、
複数の前記突出形状部は、それぞれ、前記一対のダイスの圧縮方向に対して直交する方向に形成されており、
前記導体の長手方向に垂直な断面視において、
前記2つの圧縮部における、前記突出形状部の突出部分を含む前記端子の断面幅寸法を、それぞれA、Cとし、前記2つの圧縮部の間に形成された圧縮部における、前記突出形状部の突出部分を含む前記端子の断面幅寸法をBとした場合の突出比率、及び前記2つの圧縮部の間に形成された圧縮部における、前記突出形状部の突出部分の高さ寸法Tと前記端子の断面高さ寸法をXとした場合の高さ比率から算出される規格値が0.7以上である、
付記3に記載の端子付電線。
ただし、突出比率(%)={(2×B-(A+C))/(2×B)}×100であり、高さ比率=X/Tであり、規格値=突出比率/高さ比率である。
(Appendix 5)
Preferably,
the three or more compression portions are each formed by compressing the terminal from opposite directions using a pair of dies;
The plurality of protruding portions are each formed in a direction perpendicular to a compression direction of the pair of dies,
In a cross-sectional view perpendicular to the longitudinal direction of the conductor,
a protrusion ratio when the cross-sectional width dimensions of the terminal including the protruding portion of the protruding portion in the two compressed portions are A and C, respectively, and a cross-sectional width dimension of the terminal including the protruding portion of the protruding portion in the compressed portion formed between the two compressed portions is B, and a standard value calculated from a height ratio when the height dimension of the protruding portion of the protruding portion in the compressed portion formed between the two compressed portions is T and a cross-sectional height dimension of the terminal is X is 0.7 or more;
4. The terminal-equipped electric wire according to claim 3.
Here, protrusion ratio (%)={(2×B−(A+C))/(2×B)}×100, height ratio=X/T , and standard value=protrusion ratio/height ratio.

(付記6)
本発明の他の一態様によれば、
導体を有する電線と、前記導体を挿入する端子と、を準備する工程と、
前記端子に前記導体を挿入させた状態で、前記導体の長手方向に沿って前記端子を3回以上圧縮して、前記端子に3つ以上の圧縮部を形成することにより、前記端子を前記導体に接続する工程と、
を有する端子付電線の製造方法であって、
前記端子を前記導体に接続する工程は、前記3つ以上の圧縮部に、それぞれ、圧縮した順番に応じて突出量が異なる突出形状部を形成する工程を有する、
端子付電線の製造方法が提供される。
(Appendix 6)
According to another aspect of the present invention,
A step of preparing an electric wire having a conductor and a terminal into which the conductor is inserted;
a step of compressing the terminal three or more times along a longitudinal direction of the conductor with the conductor inserted into the terminal, thereby forming three or more compressed portions in the terminal, thereby connecting the terminal to the conductor;
A method for producing an electric wire with a terminal, comprising:
The step of connecting the terminal to the conductor includes a step of forming protruding portions having different protruding amounts in the three or more compressed portions according to the order of compression.
A method for manufacturing a terminal-fitted electric wire is provided.

(付記7)
好ましくは、
前記端子を前記導体に接続する工程は、前記圧縮部を形成する際に生じる前記突出形状部を収容する収容溝を有する圧縮ダイスを用いて行う、
付記6に記載の端子付電線の製造方法が提供される。
(Appendix 7)
Preferably,
The step of connecting the terminal to the conductor is performed using a compression die having an accommodation groove for accommodating the protruding portion generated when the compression portion is formed.
A method for producing an electric wire with a terminal according to claim 6 is provided.

(付記8)
好ましくは、
前記端子を前記導体に接続する工程は、前記導体の長手方向における両端部に既に形成した圧縮部の間に、新たな圧縮部を形成する工程を有する、
付記6または7に記載の端子付電線の製造方法が提供される。
(Appendix 8)
Preferably,
The step of connecting the terminal to the conductor includes a step of forming a new compressed portion between compressed portions already formed on both ends of the conductor in the longitudinal direction.
The present invention provides a method for producing an electric wire with a terminal according to claim 6 or 7.

1 端子付電線
2 電線
3 導体
5 端子
10,11,12 圧縮部
P1,P2,P3 圧縮部位
REFERENCE SIGNS LIST 1 Electric wire with terminal 2 Electric wire 3 Conductor 5 Terminal 10, 11, 12 Compressed portion P1, P2, P3 Compressed portion

Claims (4)

導体を有する電線と、前記導体を挿入する端子と、を準備する第1工程と、
前記端子に前記導体を挿入させた状態で、6角ダイスを用いて、前記導体の長手方向に沿って前記端子を3回圧縮して、前記端子に第1、第2及び第3圧縮部を形成することにより、前記端子を前記導体に接続する第2工程と、
前記第1~第3圧縮部の圧縮した順番を調べる第3工程と、
を有し、
前記第3工程は、前記第1~第3圧縮部におけるそれぞれの突出形状部の突出量を確認し、当該確認結果から前記順番を調べる工程を含む、
端子付電線の製造方法。
A first step of preparing an electric wire having a conductor and a terminal into which the conductor is inserted;
a second step of compressing the terminal three times along a longitudinal direction of the conductor using a hexagonal die while the conductor is inserted into the terminal, thereby forming first, second and third compressed portions in the terminal, thereby connecting the terminal to the conductor;
a third step of checking the order of compression of the first to third compression units;
having
the third step includes a step of confirming the protrusion amounts of the protruding portions in the first to third compressed portions, and examining the order from the confirmation results;
A manufacturing method for electric wire with terminal.
前記第2工程は、前記第1及び第2圧縮部を形成した後に、当該第1及び第2圧縮部の間に前記第3圧縮部を形成する工程を含み、the second step includes a step of forming the first and second compressed portions and then forming the third compressed portion between the first and second compressed portions;
前記第3工程は、前記第1及び第2圧縮部における前記突出形状部の突出量よりも、前記第3圧縮部における前記突出形状部の突出量の方が大きいかを確認して、前記第3圧縮部が前記第1及び第2圧縮部を形成した後に形成されたことを調べる工程を含む、the third step includes a step of checking whether a protruding amount of the protruding portion in the third compressed portion is larger than a protruding amount of the protruding portion in the first and second compressed portions, and checking whether the third compressed portion is formed after forming the first and second compressed portions.
請求項1に記載の端子付電線の製造方法。A method for producing the terminal-attached electric wire according to claim 1.
数の前記突出形状部は、それぞれ、前記6角ダイスの圧縮方向に対して直交する方向に形成されており、
前記導体の長手方向に垂直な断面視において、
前記第1及び第2圧縮部における、前記突出形状部の突出部分を含む前記端子の断面幅寸法を、それぞれA、Cとし、前記第3圧縮部における、前記突出形状部の突出部分を含む前記端子の断面幅寸法をBとした場合に、{(2×B-(A+C))/(2×B)}×100の式で算出される突出比率(%)が4.2%より大きい、
請求項2に記載の端子付電線の製造方法
Each of the plurality of protruding portions is formed in a direction perpendicular to a compression direction of the hexagonal die,
In a cross-sectional view perpendicular to the longitudinal direction of the conductor,
When the cross-sectional width dimensions of the terminal including the protruding portion of the protruding shape portion in the first and second compression portions are A and C, respectively, and the cross-sectional width dimension of the terminal including the protruding portion of the protruding shape portion in the third compression portion is B, a protrusion ratio (%) calculated by the formula {(2×B−(A+C))/(2×B)}×100 is greater than 4.2%;
A method for producing the terminal-attached electric wire according to claim 2.
前記6角ダイスは、前記第1~第3圧縮部を形成する際に生じる前記突出形状部を収容する収容溝を有する、The hexagonal die has an accommodation groove for accommodating the protruding portion generated when forming the first to third compression portions.
請求項1から3のいずれか1項に記載の端子付電線の製造方法。A method for producing the terminal-attached electric wire according to any one of claims 1 to 3.
JP2021064834A 2021-04-06 2021-04-06 Manufacturing method of electric wire with terminal Active JP7596902B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2021064834A JP7596902B2 (en) 2021-04-06 2021-04-06 Manufacturing method of electric wire with terminal
CN202111639704.XA CN115207649A (en) 2021-04-06 2021-12-29 Terminal-equipped electric wire and method for manufacturing terminal-equipped electric wire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2021064834A JP7596902B2 (en) 2021-04-06 2021-04-06 Manufacturing method of electric wire with terminal

Publications (2)

Publication Number Publication Date
JP2022160210A JP2022160210A (en) 2022-10-19
JP7596902B2 true JP7596902B2 (en) 2024-12-10

Family

ID=83574066

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2021064834A Active JP7596902B2 (en) 2021-04-06 2021-04-06 Manufacturing method of electric wire with terminal

Country Status (2)

Country Link
JP (1) JP7596902B2 (en)
CN (1) CN115207649A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004055475A (en) 2002-07-23 2004-02-19 Smk Corp Connection structure between coaxial cable and coaxial connector
JP2007503083A (en) 2003-08-19 2007-02-15 エフシーアイ Electric contact caulking method and contact obtained by this method
JP2014007067A (en) 2012-06-25 2014-01-16 Tokyo Electric Power Co Inc:The Compression sleeve, connection method of wire and compression sleeve, connection structure of wire and compression sleeve
JP2017224396A (en) 2016-06-13 2017-12-21 日立金属株式会社 Manufacturing method of terminal-equipped wire
JP2020119865A (en) 2019-01-28 2020-08-06 日立金属株式会社 Electric wire with terminal, manufacturing method of electric wire with terminal, and terminal included in electric wire with terminal

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000021543A (en) * 1998-07-06 2000-01-21 Yazaki Corp Terminal crimping dies and terminal crimping method
FR2995459B1 (en) * 2012-09-07 2014-10-10 Mecatraction METHOD FOR ASSEMBLING A CONNECTING DEVICE ON A TERMINAL STRIP DENUDE OF AN ELECTRIC CABLE AND ASSEMBLY COMPRISING SUCH A DEVICE ASSEMBLED SOLIDARILY ON SUCH A CABLE TRUNK

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004055475A (en) 2002-07-23 2004-02-19 Smk Corp Connection structure between coaxial cable and coaxial connector
JP2007503083A (en) 2003-08-19 2007-02-15 エフシーアイ Electric contact caulking method and contact obtained by this method
JP2014007067A (en) 2012-06-25 2014-01-16 Tokyo Electric Power Co Inc:The Compression sleeve, connection method of wire and compression sleeve, connection structure of wire and compression sleeve
JP2017224396A (en) 2016-06-13 2017-12-21 日立金属株式会社 Manufacturing method of terminal-equipped wire
JP2020119865A (en) 2019-01-28 2020-08-06 日立金属株式会社 Electric wire with terminal, manufacturing method of electric wire with terminal, and terminal included in electric wire with terminal

Also Published As

Publication number Publication date
CN115207649A (en) 2022-10-18
JP2022160210A (en) 2022-10-19

Similar Documents

Publication Publication Date Title
CN102362398B (en) Method for manufacturing cable with terminal clamps
JP5741502B2 (en) Electric wire with terminal and manufacturing method thereof
CN102089940A (en) Electric wire with terminal fitting and method of manufacturing electric wire with terminal fitting
JP5567234B1 (en) Connection structure, terminal crimping member, wire harness, connector, connection structure crimping method, and crimping apparatus for crimping the connection structure
JP5164819B2 (en) Crimping method of crimping barrel, crimping barrel and crimping device
JP5169502B2 (en) Splice connection wire and method of manufacturing splice connection wire
JP7347570B2 (en) Manufacturing method of electric wire with terminal
JP2018190533A (en) Electric wire connection structure and harness manufacturing method
JP2021163727A (en) Crimping part, joint terminal, joint structure, manufacturing method of crimping part and manufacturing method of joint terminal
JP7596902B2 (en) Manufacturing method of electric wire with terminal
JP2010097781A (en) Manufacturing method of electric wire with terminal fitting, and terminal crimping device
JP5011173B2 (en) Terminal crimping apparatus and wire harness manufacturing method
JP2017120709A (en) Method of manufacturing electric wire with terminal and electric wire with terminal
JP7408592B2 (en) wire with terminal
JP7155218B2 (en) IDC structure, electric wire with terminal and manufacturing method thereof
JP2015076235A (en) Crimping terminal
JP2014164868A (en) Method of manufacturing electric wire with terminal, and core wire exposure device
JP7145735B2 (en) Crimping terminal, electric wire with terminal, and method for manufacturing electric wire with terminal
JPH0797456B2 (en) Method of manufacturing conductor for wiring
JP2021061208A (en) Electric wire connection structure
JP2017168400A (en) Electric wire with terminal and manufacturing method thereof
JP7586728B2 (en) Wire with terminal
JP5720955B2 (en) Terminal manufacturing method and chain terminal
JP2025170464A (en) Manufacturing method of electric wire with terminal
JP2022015510A (en) How to manufacture electric wires with terminals, electric wires with terminals, and how to design electric wires with terminals

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20240124

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20240719

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20240730

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20240925

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20241029

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20241111

R150 Certificate of patent or registration of utility model

Ref document number: 7596902

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150