Method for connecting film-coated wire to subject member
First Claim
1. A method for connecting a film-coated wire to a subject member, the film-coated wire including a core wire and a film-coated on the core wire, the method comprising:
- winding the film-coated wire around the subject member at least one turn;
applying a force directly to the film-coated wire and to the subject member with one of first and second electrodes of a resistance welding machine;
passing a first current through the one of the first and the second electrodes to produce heat;
removing the film on the core wire using the heat;
welding the core wire to the subject member by passing a second current between the first and the second electrodes via the core wire and the subject member;
whereinthe force is applied to the subject member via the first electrode;
the second electrode has a dent portion for housing a part of the film-coated wire so that the film-coated wire is not pressed between the second electrode and the subject member;
the second electrode has a contact surface that contacts the subject member; and
the step of applying a force directly to the film-coated wire and to the subject member includes engaging the film-coated wire with only the one of said first and second electrodes.
1 Assignment
0 Petitions
Accused Products
Abstract
A film-coated wire is wound around a terminal at least one turn and pressed by an upper electrode of a resistance welding machine. A current is passed through the upper electrode when the wire is pressed, and heat is produced. The heat melts a film on the wire. The current is passed between the upper electrode and the lower electrode via the wire and the terminal to connect the wire with the terminal by resistance welding. A contact area between the wire and the terminal is increased by winding the wire around the terminal. Therefore, the wire is less likely to shift its position when a force is applied by the upper electrode. This increases reliability of the connection. Moreover, the terminal is reduced in size because it is not required to be formed in a U-shape.
6 Citations
5 Claims
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1. A method for connecting a film-coated wire to a subject member, the film-coated wire including a core wire and a film-coated on the core wire, the method comprising:
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winding the film-coated wire around the subject member at least one turn; applying a force directly to the film-coated wire and to the subject member with one of first and second electrodes of a resistance welding machine; passing a first current through the one of the first and the second electrodes to produce heat; removing the film on the core wire using the heat; welding the core wire to the subject member by passing a second current between the first and the second electrodes via the core wire and the subject member; wherein the force is applied to the subject member via the first electrode; the second electrode has a dent portion for housing a part of the film-coated wire so that the film-coated wire is not pressed between the second electrode and the subject member; the second electrode has a contact surface that contacts the subject member; and the step of applying a force directly to the film-coated wire and to the subject member includes engaging the film-coated wire with only the one of said first and second electrodes. - View Dependent Claims (2, 3, 4, 5)
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Specification
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- Resources
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Current AssigneeDENSO Corporation
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Original AssigneeDENSO Corporation
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InventorsKanamori, Hiroyasu, Kikuchi, Atsuo, Urushizaki, Mamoru
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Primary Examiner(s)Kerns, Kevin P.
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Application NumberUS10/438,520Publication NumberTime in Patent Office1,111 DaysField of Search219/56.1, 219/56.21, 219/56.22, 219/91.21, 219/91.22US Class Current219/56.22CPC Class CodesB23K 11/002 specially adapted for parti...B23K 11/163 Welding of coated materialsB23K 11/34 Preliminary treatmentB23K 2103/12 Copper or alloys thereofH01R 43/0214 Resistance welding H01R43/0...H01R 43/0228 without preliminary removin...
