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Terminal connector and wire harness

A technology for terminal connectors and wire harnesses, which is applied in the field of terminal connectors and wire harnesses to achieve the effect of reducing contact resistance

Inactive Publication Date: 2011-01-12
AUTONETWORKS TECH LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Oxide layers are easily formed on aluminum or aluminum alloy surfaces

Method used

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  • Terminal connector and wire harness
  • Terminal connector and wire harness
  • Terminal connector and wire harness

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0037] will refer to Figures 1 to 5 A first embodiment of the present invention will be described. The wire harness 10 of the present embodiment includes electric wires 11 and female terminal connectors 12 (corresponding to terminal connectors) connected to ends of the electric wires 11 .

[0038] Such as figure 1 As shown, the electric wire 11 includes a core wire (corresponding to a conductor) 13 covered by a wire insulator 14 . The core wire 13 is made of aluminum, aluminum alloy, copper and copper alloy or any other metal suitable for the intended application. The core wire 13 may be a cable composed of a plurality of flat thin wires or a single wire.

[0039] Such as figure 1 As shown, the female terminal connector 12 is prepared by pressing a metal plate (not shown) into a predetermined shape. The female terminal connector 12 includes an insulating barrel 15 crimped onto the electric wire 11 to surround the electric wire insulator 14 . exist figure 1 On the left ...

no. 2 example

[0062] will refer to Figures 6 to 9 The second embodiment will be described. Such as Figure 6 As shown, the recesses include pairs of recesses 18 spaced apart from each other in the axial direction of the electric wire 11 (indicated by arrow A).

[0063] Each pair of recesses 18 is formed in rows (two rows in this embodiment) spaced apart from each other in the axial direction of the electric wire 11 . Pairs of recesses 18 adjacent to each other in the axial direction of the electric wire 11 are displaced from each other in the axial direction of the electric wire 11 .

[0064] Such as Figure 6 As shown, each recess 18 has an elongated substantially rectangular shape extending in a direction (indicated by arrow B) intersecting the axial direction of the electric wire 11 . Such as Figure 7 and 8 As shown, each recess 18 appears to be generally trapezoidal in a cross-sectional view of the wire barrel 16 . Each recess 18 has the smallest width at the bottom and gradual...

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PUM

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Abstract

A terminal fitting has a wire barrel (16) crimped from the outside to a terminal of an electric wire (11), and the wire barrel (16) has recesses (18) formed in that surface of the wire barrel (16) which is on the electric wire (11) side. The recesses (18) extend in the direction crossing the axis direction of the electric wire (11) and are arranged so as to be spaced in the direction crossing the axis direction of the electric wire (11). The thickness of the wire barrel (16) before the wire barrel (16) is crimped to the electric wire (11) is not less than 0.15 mm but not more than 1 mm, and the depth of the recesses (18) before the barrel (16) is crimped to the electric wire (11) is not less than 30% but not more than 60% of the thickness of the wire barrel (16) before the wire barrel (16) is crimped to the electric wire (11).

Description

technical field [0001] The invention relates to a terminal connector and a harness. Background technique [0002] A terminal connector connected to an electric wire end disclosed in Patent Document 1 is known as an example of such a connector. The terminal connector includes a crimping portion that is formed of a metal plate and that is crimped to a bare portion of a core wire at an electric wire end. [0003] When an oxide layer is formed on the core wire, the contact resistance between the core wire and the crimp may increase due to the oxide layer between the core wire and the crimp. [0004] In the prior art, recesses (serrations) are formed on the inner surface of the crimping portion, which continuously extend in a direction intersecting the axis of the electric wire. A plurality of recesses adjacent to each other are formed in the axial direction of the electric wire. [0005] When the crimping portion is crimped to the core wire of the electric wire, the crimping ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R4/18
CPCH01R4/185H01R4/188
Inventor 大塚拓次平井宏树小野纯一田中彻儿下田洋树
Owner AUTONETWORKS TECH LTD