WO2010058786A1 - Fil électrique équipé d'un raccord de connexion et procédé de fabrication de fil électrique équipé d'un raccord de connexion - Google Patents

Fil électrique équipé d'un raccord de connexion et procédé de fabrication de fil électrique équipé d'un raccord de connexion Download PDF

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Publication number
WO2010058786A1
WO2010058786A1 PCT/JP2009/069542 JP2009069542W WO2010058786A1 WO 2010058786 A1 WO2010058786 A1 WO 2010058786A1 JP 2009069542 W JP2009069542 W JP 2009069542W WO 2010058786 A1 WO2010058786 A1 WO 2010058786A1
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WO
WIPO (PCT)
Prior art keywords
wire
core wire
electric wire
terminal fitting
region
Prior art date
Application number
PCT/JP2009/069542
Other languages
English (en)
Japanese (ja)
Inventor
拓次 大塚
宏樹 平井
純一 小野
徹児 田中
洋樹 下田
朗 伊東
大 樋口
真博 萩
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
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
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Application filed by 株式会社オートネットワーク技術研究所, 住友電装株式会社, 住友電気工業株式会社 filed Critical 株式会社オートネットワーク技術研究所
Priority to CN2009801275189A priority Critical patent/CN102089940A/zh
Priority to DE112009001147T priority patent/DE112009001147T8/de
Priority to US13/001,488 priority patent/US20110094797A1/en
Publication of WO2010058786A1 publication Critical patent/WO2010058786A1/fr

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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
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/04—Apparatus 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
    • H01R43/048—Crimping apparatus or processes
    • H01R43/05—Crimping apparatus or processes with wire-insulation stripping
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/02—Soldered or welded connections
    • H01R4/029—Welded connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • 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
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
    • H01R43/0207—Ultrasonic-, H.F.-, cold- or impact welding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/58—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
    • H01R4/625—Soldered or welded connections
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49174—Assembling terminal to elongated conductor

Definitions

  • the present invention relates to an electric wire with a terminal fitting and a method for manufacturing an electric wire with a terminal fitting.
  • patent document 1 the thing of patent document 1 is known as an electric wire with a terminal metal fitting.
  • This is formed by crimping a terminal fitting to an electric wire including a core wire composed of a plurality of strands and a core wire exposed from the electric wire.
  • a terminal metal fitting has a crimping
  • the electric wire and the terminal fitting are electrically connected by being crimped so that the crimping portion is wound around the outer side of the core wire.
  • Japanese Patent Laid-Open No. 9-7647 Japanese Patent Laid-Open No. 9-7647
  • the core wire and the crimping portion are electrically connected to each other by contacting the outer peripheral surface of the core wire and the inner surface of the crimping portion.
  • a film having a relatively large electrical resistance such as an oxide film
  • the strands are electrically connected to each other by the coating formed on the surface of the strand.
  • it will not be able to connect sufficiently.
  • only the strands that are located on the radially outer side of the core wire and contact the inner surface of the crimped portion contribute to the electrical connection between the core wire and the crimped portion, and are located on the radially inner side of the core wire.
  • the strands do not contribute to the electrical connection with the crimping portion.
  • the electrical resistance between the electric wire and the terminal fitting is increased.
  • This invention was completed based on the above situations, Comprising: Provided the manufacturing method of the electric wire with a terminal metal fitting with which the electrical resistance between an electric wire and a terminal metal fitting was reduced, and the electric wire with a terminal metal fitting. Objective.
  • the present invention is a method of manufacturing an electric wire with a terminal fitting, comprising: an electric wire having a core wire composed of a plurality of strands; and a terminal fitting having a crimping portion to be crimped to the core wire exposed from the electric wire, Peeling the insulation coating covering the outer peripheral surface of the core wire to expose the core wire, sandwiching the exposed core wire between a pair of jigs, applying ultrasonic vibration to the core wire by the jig, and the core wire A step of crimping the crimping portion so as to be wound from outside on a region including a region to which ultrasonic vibration is applied.
  • this invention is an electric wire with a terminal metal fitting provided with the electric wire containing the core wire which consists of a some strand, and the terminal metal fitting crimped
  • the core wire exposed from the said electric wire A roughened region is formed on the surface of the wire constituting the wire by applying ultrasonic vibration to the wire, and the terminal fitting has a crimping portion to be crimped so as to be wound around the outside of the core wire.
  • the crimping part is crimped to a region of the core wire including the roughened region.
  • the strands constituting the core wire rub against each other.
  • the surfaces of the strands rub against each other, so that a roughened region in which the surface is roughened is formed on the strands.
  • the crimping part When the crimping part is crimped to the core wire composed of the above-described roughened region, the strands are rubbed against each other by applying force by the crimping part. As a result, the roughened regions formed on the surface of the strands rub against each other, so that the coating such as an oxide film formed on the surface of the strands is peeled off. Then, the new surface of the strand is exposed. The exposed new surfaces contact each other, whereby the strands are electrically connected. Thereby, since the strand located in the radial direction inside of a core wire can contribute to the electrical connection between an electric wire and a terminal metal fitting, electric resistance between an electric wire and a terminal metal fitting can be made small. it can.
  • the electrical resistance between the electric wire and the terminal fitting can be reduced.
  • FIG. 1 is a side view showing an electric wire with terminal fitting according to an embodiment of the present invention.
  • FIG. 2 is a perspective view showing a female terminal fitting.
  • FIG. 3 is a perspective view showing a state in which the insulation coating of the electric wire has been removed.
  • FIG. 4 is a perspective view showing a state in which the core wire is ultrasonically welded.
  • FIG. 5 is a perspective view showing a state before the wire barrel is crimped to the core wire.
  • 6 is a cross-sectional view taken along line VI-VI in FIG.
  • FIG. 7 is an electron micrograph showing the strands in Experimental Example 1.
  • FIG. 8 is an electron micrograph showing the surface of the strand in Experimental Example 1.
  • FIG. 9 is an electron micrograph showing the strands in Experimental Example 2.
  • FIG. 7 is an electron micrograph showing the strands in Experimental Example 1.
  • FIG. 10 is an electron micrograph showing the surface of the strand in Experimental Example 2.
  • FIG. 11 is an electron micrograph showing the strands in Experimental Example 3.
  • FIG. 12 is an electron micrograph showing the surface of the strand in Experimental Example 3.
  • FIG. 13 is an electron micrograph showing the strands in Comparative Example 1.
  • FIG. 14 is an electron micrograph showing the surface of the strand in Comparative Example 1.
  • FIG. 15 is a graph showing the electrical resistance value between the strands.
  • FIG. 16 is a perspective view showing a state before the wire barrel is crimped to the core wire, as described in another embodiment.
  • FIG. 17 is a plan view showing a terminal fitting having an intermediate splice structure described in another embodiment.
  • FIG. 18 is a cross-sectional view illustrating a state in which ultrasonic vibration is applied to a core wire plastically deformed by a jig according to another embodiment.
  • FIG. 19 is a cross-sectional view illustrating a state in which ultrasonic vibration is applied to an elliptically deformed core wire according to another embodiment.
  • FIG. 20 is a cross-sectional view showing a state in which ultrasonic vibration is applied to a core wire plastically deformed into a circle according to another embodiment.
  • FIG. 21 is a perspective view illustrating a state before the core wire is plastically deformed by the roll machine according to another embodiment.
  • FIG. 22 is a perspective view illustrating a state after the core wire is plastically deformed by the roll machine according to another embodiment.
  • FIG. 23 is a cross-sectional view illustrating a state before ultrasonic vibration is applied to a core wire plastically deformed by a roll machine according to another embodiment.
  • FIG. 24 is an enlarged cross-sectional view of a main part showing a step in the middle of crimping the wire barrel in the electric wires with terminal fittings according to Experimental Examples 4 to 6.
  • FIG. 25 is an enlarged cross-sectional view of a main part showing a process in the middle of crimping the wire barrel in the electric wires with terminal fittings according to Experimental Examples 7 to 9.
  • FIG. 26 is a graph showing contact resistance and fixing force of the electric wires with terminal fittings according to Experimental Examples 4 to 6.
  • FIG. 27 is a graph showing contact resistance and fixing force of the electric wires with terminal fittings according to Experimental Examples 7 to 9.
  • FIG. 28: is a side view which shows the process of giving an ultrasonic vibration to a core wire about the electric wire with a terminal metal fitting which concerns on Embodiment 2 of this invention.
  • FIG. 29 is a side view showing a state after ultrasonic vibration is applied to the core wire.
  • FIG. 30 is a side view showing a state where the tip of the core wire is cut.
  • the electric wire 10 with a terminal metal fitting includes an electric wire 11 and a female terminal metal fitting 12 (corresponding to a terminal metal fitting described in claims) connected to an end of the electric wire 11. As shown in FIG. 1, the electric wire 11 extends in the left-right direction in FIG. 1 while being connected to the female terminal fitting 12.
  • the electric wire 11 is formed by surrounding the outer periphery of a core wire 13 with an insulating coating 14.
  • the core wire 13 may be made of any metal such as aluminum, aluminum alloy, copper, copper alloy, or the like as necessary. In the present embodiment, aluminum or aluminum alloy is used.
  • the core wire 13 is formed of a stranded wire obtained by twisting a large number of strands 15. The core wire 13 is exposed from the end of the electric wire 11 by peeling off the insulating coating 14 by a predetermined length.
  • the plurality of strands 15 constituting the core wire 13 exposed from the electric wire 11 are sandwiched between a pair of jigs 16 and 16 and are given ultrasonic vibrations. Are joined together.
  • the strand 15 is formed with a roughened region 17 whose surface is roughened by applying ultrasonic vibration from the jig 16 and rubbing each other.
  • the roughened region 17 is formed on the surface of each strand 15 located in the region where the strands 15 are joined together.
  • the female terminal fitting 12 is formed by pressing a metal plate material (not shown) into a predetermined shape.
  • the female terminal fitting 12 is formed with a pair of insulation barrels 18 that are crimped so as to be wound around the insulating coating 14 of the electric wire 11 from the outside.
  • a wire barrel 19 which is connected to the insulation barrel 18 so as to be wound around the core wire 13 of the electric wire 11 from the outside is provided at a position to the left of the insulation barrel 18 in FIG. Is equivalent).
  • a connecting portion 20 is formed at the left side of the wire barrel 19 so as to be connected to and electrically connected to a mating terminal fitting (not shown).
  • the mating terminal fitting is a male terminal fitting.
  • the connecting portion 20 has a cylindrical shape, and a male terminal fitting can be inserted into the cylinder.
  • An elastic contact piece 21 is formed in the connecting portion 20, and the male terminal fitting and the female terminal fitting 12 are electrically connected by elastically contacting the elastic contact piece 21 and the male terminal fitting. .
  • a recess 23 is formed on the contact surface 22 of the wire barrel 19 of the female terminal fitting 12 that contacts the core wire 13.
  • three recesses 23 are formed side by side in the direction in which the electric wire 11 extends (the direction indicated by the arrow A in FIG. 2).
  • a wire barrel 19 is crimped around the outer periphery of the core wire 13 exposed from the electric wire 11 so as to be wound.
  • the core wire 13 is formed with a pressure-bonded region 24 to which the wire barrel 19 is pressure-bonded.
  • the roughened region 17 is formed in a slightly larger region in the left-right direction in FIG.
  • the connecting portion 20 is formed by bending a metal plate formed in a predetermined shape. At this time, the recess 23 may be formed.
  • the core wire 13 is exposed by peeling off the insulation coating 14 at the end of the electric wire 11 (see FIG. 3). As shown in FIG. 4, the exposed core wire 13 is sandwiched between a pair of jigs 16 and 16. In the present embodiment, the pair of jigs 16 and 16 sandwich the core wire 13 from the vertical direction in FIG. After sandwiching the core wire 13 with the jig 16, ultrasonic vibration is applied to the core wire 13 with the jig 16. Known conditions can be used as the conditions for ultrasonic vibration.
  • the core wire 13 By applying ultrasonic vibration to the core wire 13, the plurality of strands 15 constituting the core wire 13 rub against each other. Then, a roughened region 17 having a roughened surface is formed on the surface of the strand 15. Further, when ultrasonic vibration is applied to the core wire 13, the surfaces of the strands 15 are melted by frictional heat. Thereafter, the ultrasonic vibration is stopped, the pair of jigs 16 and 16 are separated from each other, the core wire 13 is removed from the jig 16 and cooled (cooled), whereby the strands 15 are welded. As shown in FIG. 4, the core wire 13 is formed in a flat shape in a direction (vertical direction in FIG. 4) in which the pair of jigs 16, 16 sandwich the core wire 13.
  • the portion of the core wire 13 including the roughened region 17 is placed on the wire barrel 19, and the insulating coating 14 is attached to the insulation barrel 18.
  • Both barrels are crimped to the electric wire 11 from the outside by being sandwiched from above and below by a pair of molds (not shown) in a state of being placed on the wire.
  • the orientation in other words, the vertical direction in FIG. 5 between which the core wire 13 is sandwiched between the pair of jigs 16 and 16 and the direction in which the wire barrel 19 is sandwiched between the molds (in other words, a flat shape is formed).
  • the wire 11 is arranged with respect to the female terminal fitting 12 in such a manner that the flat surface of the core wire 13 is oriented in the vertical direction).
  • the electric wire 10 with a terminal metal fitting is completed by performing said process.
  • the strands 15 are rubbed against each other by applying force by the wire barrel 19. Then, the roughened regions 17 formed on the surface of the strand 15 are rubbed with each other, so that the coating such as an oxide film formed on the surface of the strand 15 is peeled off. Then, the new surface of the strand 15 is exposed. The exposed new surfaces contact each other, whereby the wires 15 are electrically connected. Thereby, since the strand 15 located in the radial direction inner side of the core wire 13 can contribute to the electrical connection between the electric wire 11 and the female terminal fitting 12, it is between the electric wire 11 and the female terminal fitting 12. The electrical resistance can be reduced.
  • the newly formed surfaces that are in contact with each other adhere to each other, so that a new insulating film such as an oxide film is prevented from being newly formed on the newly formed surface of the strand 15. Thereby, the electrical resistance between the electric wire 11 and the female terminal fitting 12 can be maintained in a small state.
  • the strands 15 are electrically connected to each other by welding.
  • the strand 15 located on the radially inner side of the core wire 13 can reliably contribute to the electrical connection between the electric wire 11 and the female terminal fitting 12.
  • the electrical resistance between the electric wire 11 and the female terminal fitting 12 can be further reduced.
  • the roughened region 17 is formed in a region slightly wider than the crimped region 24 in the core wire 13.
  • the core wire 13 is made of an aluminum alloy.
  • an insulating film such as an oxide film is relatively easily formed on the surface of the core wire 13. This embodiment is effective when an insulating film is easily formed on the surface of the core wire 13.
  • the metal plate was formed into a predetermined shape by pressing. Then, the connection part 20 was formed by bending the metal plate material formed in the predetermined shape.
  • the insulation coating 14 is peeled off at the end of the electric wire 11 to expose the core wire 13, and then the core wire 13 is sandwiched between a pair of jigs 16, 16 to give ultrasonic vibration to the core wire 13. 15 were welded together.
  • the contact pressure of the jig 16 was 13 bar, the frequency was 20 kHz, and the applied energy was 80 Ws.
  • FIG. 7 and 8 show electron micrographs of the surface of the strand 15 subjected to ultrasonic vibration.
  • the magnification in FIG. 7 is 30 times, and the magnification in FIG. 8 is 4000 times.
  • FIG. 9 and 10 show electron micrographs of the surface of the strand 15 subjected to ultrasonic vibration.
  • the magnification in FIG. 9 is 30 times, and the magnification in FIG. 10 is 4000 times.
  • FIG. 11 and 12 show electron micrographs of the surface of the strand 15 subjected to ultrasonic vibration.
  • the magnification of FIG. 11 is 30 times, and the magnification of FIG. 12 is 4000 times.
  • ⁇ Comparative Example 1> The metal plate was formed into a predetermined shape by pressing. Then, the connection part 20 was formed by bending the metal plate material formed in the predetermined shape. Then, after peeling off the insulation coating 14 of the electric wire 11 and exposing the core wire 13, the wire barrel 19 was crimped to the exposed core wire 13 to produce the electric wire 10 with terminal fittings.
  • FIG. 13 and FIG. 14 show electron micrographs of the surface of the strand 15 subjected to ultrasonic vibration.
  • the magnification in FIG. 13 is 30 times, and the magnification in FIG. 14 is 4000 times.
  • a roughened region 17 is formed on the surface of the strand 15 according to Experimental Examples 1 to 3 in which ultrasonic vibration is applied to the core wire 13.
  • Experimental Example 1 in which the ultrasonic vibration was applied under a relatively severe condition where the contact pressure of the jig 16 was 13 bar and the applied energy was 80 Ws, as shown in FIG.
  • Concavities and convexities are formed on the lines 15, and each strand 15 has a distorted shape.
  • FIG. 8 when the surface of the strand 15 is magnified and observed, the surface is not smooth but is in a rough state (a state in which fine irregularities are formed), and the roughened region 17 Is formed.
  • each strand 15 does not appear to have a distorted shape.
  • the surface of the strand 15 is enlarged and observed, the surface is not smooth but rough, and a roughened region 17 is formed.
  • FIG. 15 shows the electrical resistance between the strands 15 measured in Experimental Examples 1 to 3 and Comparative Example 1.
  • Experimental Example 1 to Experimental Example 3 in which ultrasonic vibration was applied to the core wire 13, the electrical resistance between the strands 15 was smaller than 10 m ⁇ , indicating a sufficiently small electrical resistance value.
  • Comparative Example 1 in which ultrasonic vibration was not applied to the core wire 13, the electrical resistance between the strands 15 showed a large value of 60 m ⁇ .
  • the strands 15 are rubbed against each other due to the force applied by the wire barrel 19. Then, the roughened regions 17 formed on the surface of the strand 15 are rubbed with each other, so that the coating such as an oxide film formed on the surface of the strand 15 is peeled off. Then, the new surface of the strand 15 is exposed. The exposed new surfaces contact each other, whereby the wires 15 are electrically connected. Thereby, since the strand 15 located in the radial direction inner side of the core wire 13 can contribute to the electrical connection between the electric wire 11 and the terminal fitting, the electrical resistance between the electric wire 11 and the terminal fitting. Can be reduced.
  • FIG. 24 shows a step in the middle of crimping the wire barrel 19 to the core wire 13.
  • the wire barrel 19 was placed on the upper surface of the mold 50 located on the lower side in FIG.
  • the core wire 13 was placed on the upper surface of the wire barrel 19.
  • the core wire 13 is sandwiched between a pair of jigs 16 and 16 and subjected to ultrasonic vibration, whereby the strands 15 constituting the core wire 13 are welded to each other.
  • the cross-sectional shape of the core wire 13 is a flat rectangular shape.
  • a flat surface of the core wire 13 is a surface sandwiched between the jigs 16.
  • the core wire 13 was placed on the upper surface of the wire barrel 19 with the flat surface of the core wire 13 facing the vertical direction.
  • the mold 51 located on the upper side in FIG. 24 was moved downward toward the mold 50 located on the lower side. Then, the wire barrel 19 was pressed from above by the lower surface of the mold 51. Further, by moving the mold 51 downward, the wire barrel 19 was crimped around the outer periphery of the core wire 13. Thus, the electric wire 10 with a terminal metal fitting which concerns on Experimental example 4 was produced. At this time, the wire compression rate of the core wire 13 was 60%.
  • the wire compression ratio is ⁇ (cross-sectional area of the core wire after the crimping portion is crimped) / (cross-sectional area of the core wire before the crimping portion is crimped) ⁇ ⁇ 100, and the crimping portion is crimped. It is defined as a percentage of the cross-sectional area of the core wire after the cross-sectional area of the core wire before the crimping part is crimped.
  • reducing the wire compression rate means compressing the core wire with a large pressure (high compression)
  • increasing the wire compression rate means that the core wire It means compressing with a small pressure (low compression).
  • the fixing force between the electric wire 11 and the wire barrel 19 was measured for the electric wires 10 with terminal fittings according to Experimental Examples 4 to 6 created as described above.
  • the electric wire 11 and the female terminal fitting 12 connected to the wire barrel 19 were each held with a jig, and a tensile test was performed at 100 mm / second.
  • the stress when the electric wire 11 and the wire barrel 19 were separated from each other was defined as a fixing force.
  • the fixing force was measured for 20 samples, and the average value is shown in FIG. In FIG. 26, the maximum value and the minimum value of the sample are indicated by error bars.
  • the wire compression rate was 60%.
  • the electric wires 10 with terminal fittings according to Experimental Examples 4 to 6 showed a value of 650 N or more. Moreover, the variation (difference between the maximum value and the minimum value) between samples in each experimental example was 100 N or less.
  • the fixing force of the electric wire 10 with terminal fittings according to Experimental Examples 7 to 9 was 630 N or less. Further, the variation among samples in each experimental example was larger than those in experimental examples 4 to 6. For example, the variation between samples was about 170 N in Experimental Example 7 and about 160 N in Experimental Example 8. The fixing force of the electric wire 10 with terminal fittings according to Experimental Examples 7 to 9 is sufficiently high, and the variation between samples is sufficiently small, but the electric wire with terminal fittings according to Experimental Examples 4 to 6 Ten was better.
  • FIG. 28 a second embodiment of the present invention will be described with reference to FIGS.
  • the core wire 13 exposed at the end of the electric wire 11 is sandwiched between a pair of jigs 16 and 16.
  • the length dimension of the core wire 13 is set so as to be disposed over substantially the entire area of the jig 16.
  • the end of the core wire 13 is cut into a predetermined length by a known method such as a cutter. Thereby, the cutting part 60 is formed in the front-end
  • each strand 15 does not necessarily extend uniformly. For this reason, when the core wire 13 is exposed at the end of the electric wire 11 and ultrasonic vibration is applied to the core wire 13, there is a concern that the ends of the strands 15 become uneven at the end of the core wire 13. If the wire barrel 19 is to be crimped to the core wire 13 in such a state, the dimensional accuracy between the core wire 13 and the wire barrel 19 is lowered, and a positional shift may occur between the electric wire 11 and the female terminal fitting 12. Concerned.
  • the core wire 13 is cut in the roughened region 17 to which ultrasonic vibration is applied in the core wire 13, it is possible to prevent the ends of the strands 15 from becoming uneven on the cut surface of the core wire 13. As a result, it is possible to suppress positional deviation between the electric wire 11 and the female terminal fitting 12.
  • the core wire 13 is installed over substantially the entire area of the jig 16 that applies ultrasonic vibration to the core wire 13, the ultrasonic vibration is applied to the core wire 13 substantially evenly.
  • region 17 the surface of the strand 15 is roughened substantially equally.
  • the wire barrel 19 is crimped, the strands 15 are rubbed against each other, so that the new surface of the strand 15 is evenly exposed. Thereby, the electrical connection reliability of the strands 15 can be improved.
  • 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 roughened region 17 is formed in a region wider than the bonded region 24.
  • the present invention is not limited to this, and the roughened region 17 and the bonded region 24 are the same.
  • the roughened region 17 may be formed in a part of the pressure-bonded region 24.
  • the angle between the direction in which the core wire 13 is sandwiched by the pair of jigs 16 and 16 and the direction in which the wire barrel 19 is sandwiched by the mold is arbitrary. For example, as shown in FIG.
  • the wire barrel 19 may be crimped to the core wire 13 so that the direction in which the core wire 13 is sandwiched by 16 and 16 and the direction in which the wire barrel 19 is sandwiched by the mold intersect. (3) If the roughening area
  • the shape of the wire barrel 19 may be any shape as necessary.
  • the terminal fitting is the female terminal fitting 12 having the cylindrical connecting portion 20, but is not limited thereto, and may be a male terminal fitting having a male tab or penetrating through a metal plate material.
  • a so-called LA terminal in which a hole is formed may be used, and a terminal fitting having an arbitrary shape may be used as necessary.
  • the electric wire 11 is a covered electric wire that covers the outer periphery of the core wire 13 with the insulating coating 14. However, the electric wire 11 is not limited to this, and the shielded electric wire 11 may be used. 11 can be used.
  • the terminal metal fitting of the said embodiment was the wire barrel 19 and the connection part 20 which were arranged side by side, it is not restricted to this, The terminal metal fitting which does not have the connection part 20 may be sufficient.
  • the insulation coating 14 is peeled off at the terminal portion of one electric wire 11 to expose the core wire 13, and the other electric wire 11 is Has a so-called intermediate splice structure in which the insulation coating 14 is peeled off at the intermediate portion to expose the core wire 13 and each of the two exposed core wires 13 is caulked with one of the pair of wire barrels 19 one by one. It is good also as a terminal metal fitting.
  • the core wire 13 is exposed at the intermediate portion of the two electric wires 11 and the exposed intermediate portions are crimped by one of the pair of wire barrel pieces. You may do it.
  • the core wire 13 is plastically deformed into a flat prismatic shape (rectangular shape) by the jig 16, and ultrasonic vibration is applied to the plastic deformation portion.
  • the present invention is not limited to this. You may make it give an ultrasonic vibration to the plastic deformation part plastically deformed to squares other than a square pillar shape. Further, ultrasonic vibration may be applied to a plastically deformed portion that is plastically deformed other than a quadrilateral polygon.
  • a plastic deformation portion 32 in which a circular core wire 13 is plastically deformed into a hexagon using jigs 30 and 31 made of a metal upper die and a lower die is provided.
  • a plastic deformation part other than a polygon may be formed.
  • ultrasonic vibration is generated in the plastic deformation part 33 in which the core wire 13 is plastically deformed into an ellipse by a jig (die). May be given.
  • the ultrasonic deformation is applied after forming a plastic deformation portion 34 having a circular reduced diameter portion in which the diameter of the core wire 13 is reduced (reduced) by a jig. Also good.
  • plastic deformation part 34 (reduction diameter part)
  • grooves 38 and 39 curved in a semicircular shape (arc) are formed on the outer peripheral surface of the pair of upper and lower rolls 36 and 37 of the roll machine 35. If the core wire 13 is crushed in the circular hole formed by the grooves 38 and 39 of both rolls 36 and 37, the plastic deformation portion 34 (reduced diameter portion) is formed as shown in FIG. Good. And after forming the plastic deformation part 34 (reduction diameter part), as shown in FIG.
  • tool which has the semicircular groove parts 40 and 41 (recessed part) of the same diameter as the plastic deformation part 34 (reduction diameter part) What is necessary is just to give an ultrasonic vibration to the core wire 13 via 42,43 (jig which does not plastically deform a core wire).

Landscapes

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

Abstract

L'invention porte sur un procédé de fabrication d'un fil électrique équipé d'un raccord de connexion (10), le fil électrique équipé d'un raccord de connexion (10) comprenant un fil électrique (11) ayant un fil d'âme (13) constitué de fils élémentaires (15), et également un raccord de connexion femelle (12) comprenant un cylindre de fil (19) serti au fil d'âme (13) exposé à partir du fil électrique (11). Le procédé comprend une étape consistant à peler, de façon à exposer le fil d'âme (13), un revêtement isolant (14) couvrant la surface périphérique extérieure du fil d'âme (13), une étape consistant à appliquer une vibration ultrasonore au fil d'âme exposé (13) par une paire de dispositifs de serrage (16, 16) avec le fil d'âme (13) serré par les dispositifs de serrage (16), et une étape consistant à sertir le cylindre de fil (19) de telle manière que le cylindre de fil (19) est enroulé, depuis l'extérieur, autour des régions du fil d'âme (13) qui comprennent la région à laquelle la vibration ultrasonore est appliquée.
PCT/JP2009/069542 2008-11-19 2009-11-18 Fil électrique équipé d'un raccord de connexion et procédé de fabrication de fil électrique équipé d'un raccord de connexion WO2010058786A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN2009801275189A CN102089940A (zh) 2008-11-19 2009-11-18 具有端子接头的电线和制造具有端子接头的电线的方法
DE112009001147T DE112009001147T8 (de) 2008-11-19 2009-11-18 Elektrisches Kabel mit Anschlussverbinder und Verfahren zur Herstellung eines elektrischen Kabels mit Anschlussverbinder
US13/001,488 US20110094797A1 (en) 2008-11-19 2009-11-18 Electric wire with terminal connector and method of manufacturing electric wire with terminal connector

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2008295787 2008-11-19
JP2008-295787 2008-11-19
JP2009208457 2009-09-09
JP2009-208457 2009-09-09
JP2009-261030 2009-11-16
JP2009261030A JP5428789B2 (ja) 2008-11-19 2009-11-16 端子金具付き電線及び端子金具付き電線の製造方法

Publications (1)

Publication Number Publication Date
WO2010058786A1 true WO2010058786A1 (fr) 2010-05-27

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PCT/JP2009/069542 WO2010058786A1 (fr) 2008-11-19 2009-11-18 Fil électrique équipé d'un raccord de connexion et procédé de fabrication de fil électrique équipé d'un raccord de connexion

Country Status (5)

Country Link
US (1) US20110094797A1 (fr)
JP (1) JP5428789B2 (fr)
CN (1) CN102089940A (fr)
DE (1) DE112009001147T8 (fr)
WO (1) WO2010058786A1 (fr)

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WO2012026616A1 (fr) * 2010-08-25 2012-03-01 Yazaki Corporation Procédé de façonnage d'une extrémité de fil électrique et moule pour le façonnage d'une extrémité de fil électrique
JP2013016430A (ja) * 2011-07-06 2013-01-24 Auto Network Gijutsu Kenkyusho:Kk 端子金具付き電線及び端子金具付き電線の製造方法
WO2013005548A1 (fr) * 2011-07-06 2013-01-10 株式会社オートネットワーク技術研究所 Câble électrique ayant une borne et procédé de fabrication de câble électrique ayant une borne
CN102728983A (zh) * 2012-07-25 2012-10-17 昆山达功电子有限公司 多股铜线并排焊接夹具
WO2017082140A1 (fr) * 2015-11-12 2017-05-18 住友電装株式会社 Procédé de fabrication d'élément conducteur équipé d'une borne, et élément conducteur
JP2017091864A (ja) * 2015-11-12 2017-05-25 住友電装株式会社 端子付導電部材製造方法及び導電部材
JP2019096572A (ja) * 2017-11-28 2019-06-20 矢崎総業株式会社 端子付き電線の製造方法および端子付き電線
US10826261B2 (en) 2017-11-28 2020-11-03 Yazaki Corporation Method for manufacturing terminal-equipped electric wire, and terminal-equipped electric wire
CN110224283A (zh) * 2018-03-01 2019-09-10 矢崎总业株式会社 电线的导体的结合方法和电线
CN110224283B (zh) * 2018-03-01 2021-01-08 矢崎总业株式会社 电线的导体的结合方法和电线
US11431142B2 (en) * 2020-03-18 2022-08-30 Yazaki Corporation Method of manufacturing electric wire with terminal and electric wire with terminal

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DE112009001147T8 (de) 2012-08-23
JP2011082127A (ja) 2011-04-21
JP5428789B2 (ja) 2014-02-26
CN102089940A (zh) 2011-06-08
DE112009001147T5 (de) 2011-05-12
US20110094797A1 (en) 2011-04-28

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