Wire with terminal
A terminal and wire technology, used in the field of wires with terminals, can solve problems such as aluminum wire corrosion, and achieve the effects of preventing contact corrosion, low cost, and preventing contact corrosion of different metals
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no. 1 approach
[0046] like figure 1 As shown in (a), the terminal-provided electric wire 1 according to the first embodiment of the present invention has a terminal 20 attached to the electric wire 10 and is electrically connected to electronic equipment, electronic components, other electric wires, etc. through the terminal 20 .
[0047] like figure 1 As shown in (a), the electric wire 10 has a conductor portion 12 made of a material mainly composed of aluminum (first metal) covered with an insulating material 11 . Terminal 20 is made of a material mainly composed of copper (second metal) different from aluminum (first metal), and is connected at one end of electric wire 10 to conductor 12 exposed by peeling insulating material 11 for a predetermined length. The conductor portion 12 includes a plurality of core wires 13 in the form of, for example, a twisted wire, and a fusion joint portion 14 described later is formed at the front end thereof.
[0048]Specifically, the conductor part 12 ...
no. 2 approach
[0065] Next, a terminal-provided electric wire 1A according to a second embodiment of the present invention will be described with reference to the drawings.
[0066] image 3 is the wire with terminal 1A and figure 1 (b) The same partial cross-sectional view. like image 3 As shown, the terminal-provided electric wire 1A is formed with an alloy layer 15A including aluminum and copper across the conductor portion 12 and the terminal 20 over the entire area of the contact portion 16 of the conductor portion 12 and the terminal 20 . In this point, the second embodiment is different from the first embodiment in which the alloy layer 15 is formed on the entire outer periphery of the contact portion 16 between the conductor portion 12 and the terminal 20 , and the other structures are the same.
[0067] According to the above-mentioned structure of the second embodiment, since the alloy layer 15A is formed not only on the entire outer periphery of the contact portion 16 but on...
no. 3 approach
[0069] Next, a terminal-provided electric wire 1B according to a third embodiment of the present invention will be described with reference to the drawings.
[0070] like Figure 4 As shown in (a), in the terminal-equipped electric wire 1B of the third embodiment, the conductor portion 12B is a single-core wire 13B, and the connection end portion 14B of the single-core wire 13B is connected to the terminal 20 . In this point, the third embodiment is different from the first embodiment in which the fusion bonded portion 14 formed at the ends of the plurality of core wires 13 is connected to the terminal 20 , and other structures are the same.
[0071] The connection end 14B of the single core wire 13B utilizes the figure 2 The forming process shown in (b) is formed into a rectangular parallelepiped (plate shape) in the same process, and the end surface of the connecting end portion 14B on the contact portion 16 side becomes the same shape as the end surface of the terminal 20...
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