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Terminal for electrical wire connection and electrical wire connection structure of said terminal

A technology for connecting structures and wires, applied in the direction of conductive connection, connection, connection contact material, etc., can solve problems such as electrolytic corrosion, and achieve the effect of improving the reliability of electrical connection

Inactive Publication Date: 2016-11-23
SUMITOMO WIRING SYST LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, when water immersion occurs at the contact portion of dissimilar metals, electrolytic corrosion is likely to occur

Method used

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  • Terminal for electrical wire connection and electrical wire connection structure of said terminal
  • Terminal for electrical wire connection and electrical wire connection structure of said terminal
  • Terminal for electrical wire connection and electrical wire connection structure of said terminal

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Embodiment Construction

[0044] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0045] A first embodiment is shown in FIGS. 1 to 7 .

[0046] The terminal 1 of the first embodiment shown in FIGS. 1 and 2 is used for connection to an electric wire 20 made of a thick aluminum electric wire shown in FIG. 3 . This thick aluminum electric wire is an electric wire formed by covering a core wire 20a made of aluminum-based metal with an insulating coating layer 20b made of insulating resin, and the cross-sectional area of ​​the core wire 2a is 8mm. 2 The above-mentioned thick aluminum-based electric wire (abbreviated as thick aluminum electric wire) constitutes. The electric wire 20 is provided with a bolt hole 5 in the base plate 2 a of the electrical contact portion 4 of the terminal 1 in order to be bolt-fastened to the mating terminal.

[0047] As shown in Fig. 3(B) and Fig. 3(C), the electric wire 20 is provided with a partial peeling part 21 at a p...

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Abstract

The present invention is provided with a partially stripped section (21) in which a core wire is partially exposed by peeling away an insulating coating at a position separated by a required dimension from the end of an electrical wire but leaving a part of the insulating coating in the circumferential direction. The present invention is further provided with a terminal (1) connecting to the partially stripped section, wherein an electrical wire connection section (3) is equipped with one crimped section (8) from which left and right barrels (11, 12) protrude from both sides in the width direction of a central section that comprises a substrate (2b). The electrical wire connection section is provided, along the outer peripheral edge of the crimped section, with ribs (13A, 13B, 13C, 13D) in a square frame shape protruding inwards and is provided with a core wire contact section (15) which protrudes inwards in a stepped shape in a portion surrounded by the ribs, the size of said core wire contact section corresponding to the partially stripped section of the electrical wire. The protrusion dimension of the core wire contact section (15) corresponds to the thickness of the insulating coating (20b) of the electrical wire to be connected.

Description

technical field [0001] The present invention relates to a terminal for wire connection and a wire connection structure of the terminal, and is especially suitable for connecting wires wired in a vehicle to the terminal with a waterproof specification. Background technique [0002] In recent years, from the viewpoint of weight reduction and the like, aluminum electric wires with aluminum-based metal core wires are used instead of copper electric wires with copper-based metal core wires as electric wires for wiring in vehicles such as automobiles. On the other hand, the terminals connected to the ends of the aluminum electric wires are formed of copper-based metals as in the past. Therefore, the contact portions of the terminals and the core wires of the aluminum electric wires are in contact with dissimilar metals, and it is necessary to further improve the electrical connection reliability. In addition, electrolytic corrosion is likely to occur when the contact portion of di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R4/18H01R4/62H01R43/02H01R43/048
CPCH01R4/62H01R43/048H01R4/184H01R4/188
Inventor 德永裕明山竹尚文
Owner SUMITOMO WIRING SYST LTD
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