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Metal terminal fitting and electric wire with terminal

A metal terminal and wire technology, applied in the direction of connecting contact materials, connections, circuits, etc., can solve problems such as increasing the contact resistance between conductors and crimping parts

Active Publication Date: 2011-05-11
SUMITOMO WIRING SYST LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This may increase the contact resistance between the conductor and the crimp

Method used

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  • Metal terminal fitting and electric wire with terminal
  • Metal terminal fitting and electric wire with terminal
  • Metal terminal fitting and electric wire with terminal

Examples

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Embodiment Construction

[0035] will refer to Figure 1 to Figure 6 An embodiment of the present invention will be described. like figure 1 As shown, the present embodiment provides an electric wire 10 having a metal terminal fitting, wherein a female metal terminal fitting (equivalent to the metal terminal fitting of the present invention) 12 is crimped to a core wire 13 exposed from the end of the electric wire 11 (equivalent to on the conductor of the present invention).

[0036] (wire 11)

[0037] like figure 1 As shown, the electric wire 11 includes a core wire 13 and a wire insulation sheath 14 . The core wire 13 is a twisted wire including a plurality of thin metal wires. The wire insulation 14 is made of insulating synthetic resin, and is formed to surround the outer periphery of the core wire 13 . Any metal suitable for the intended application, such as copper, copper alloys, aluminum, aluminum alloys, or other metals, etc. may be used for the metal filaments. In this embodiment, an al...

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PUM

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Abstract

A plurality of recessed parts (18) is formed in the surface of a wire barrel (16) on the side thereof where an electric wire (11) is provided. In a state before the electric wire (11) is compression-bonded to the wire barrel (16), at least one side of the hole edges of each recessed part (18) of square shape is a crossing side (19) crossing at an angle of 85-95 DEG to the extending direction, and the crossing sides (19) of the plurality of recessed parts (18) positioned adjacent to each other in the extending direction are so arranged as to overlap with each other in the extending direction.

Description

technical field [0001] The invention relates to a metal terminal joint and an electric wire with the metal terminal joint. Background technique [0002] Conventionally, a metal terminal fitting to be connected to an end of an electric wire disclosed in Patent Document 1 is known as an example of this type. The metal terminal fitting includes a crimping portion that is crimped onto a conductor exposed from an end portion of the covered electric wire so as to surround the conductor. [0003] An oxide layer is formed on the surface of the conductor, and the oxide layer is interposed between the conductor and the crimp. This may increase the contact resistance between the conductor and the crimp. [0004] In the prior art, recesses (sawtooths) are formed inside (the side close to the conductor) of the crimping portion. In a state where the crimping portion is crimped onto the conductor, the recesses extend continuously in a direction intersecting the extending direction of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R4/18H01R4/62
CPCH01R4/185H01R4/188H01R4/62H01R13/11
Inventor 小野纯一平井宏树田中彻儿下田洋树大塚拓次冈村宪知田端正明
Owner SUMITOMO WIRING SYST LTD