Terminal-equipped electric wire and method of manufacturing terminal-equipped electric wire
In a terminal-equipped electric wire in which a first barrel of a crimp terminal is crimped to a core wire exposed portion of an electric wire, a second barrel of the crimp terminal is crimped to a covering portion of the electric wire, and an anticorrosive portion is formed at least in an opening portion between the first barrel and the second barrel, an adhesive member is arranged on an outer peripheral surface of the covering portion, a base member and adhesive layers of the adhesive member are held in an elastically deformed state by being crimped by the second barrel, the inner adhesive layer of the adhesive member adheres to the entire circumference of the outer peripheral surface of the covering portion, and the outer adhesive layer of the adhesive member adheres to the entire circumference of an inner peripheral surface of the second barrel.
1. A terminal-equipped electric wire comprising:
an electric wire that has a core wire made of a conductor and a covering portion made of an insulating material covering a periphery of the core wire; and
a crimp terminal that has a base portion extending along an axial direction; a first barrel which extends from the base portion in an intersecting direction that intersects the axial direction, and is crimped in a state of surrounding an outer circumference of a core wire exposed portion in which an outer peripheral surface of the core wire in the electric wire located between the first barrel and the base portion is exposed to the outside; a second barrel which extends from the base portion in the intersecting direction, is located on a rear side of the first barrel in the axial direction, and is crimped in a state of surrounding an outer circumference of the covering portion of the electric wire; and an opening portion in which the core wire exposed portion and the covering portion are exposed to an outside between the first barrel and the second barrel, wherein
an anticorrosive portion made of an insulating material is formed so as to cover at least the opening portion,
an adhesive member having a base member and adhesive layers formed on both sides of the base member is arranged on the covering portion,
the adhesive member is held in an elastically deformed state in a state where the second barrel crimps the covering portion, an inner adhesive layer adheres to the outer circumference of the covering portion, and an outer adhesive layer adheres to an inner circumference of the second barrel so as to follow an inner peripheral surface in the state where the second barrel crimps the covering portion,
the second barrel includes an end surface that extends away from the inner circumference, and
the adhesive member extends outside of the second barrel in the axial direction and abuts the end surface of the second barrel.
2. A method of manufacturing a terminal-equipped electric wire that includes an electric wire having a core wire made of a conductor and a covering portion made of an insulating material covering a periphery of the core wire, and a crimp terminal having: a base portion extending along an axial direction; a first barrel which extends from the base portion in an intersecting direction that intersects the axial direction; a second barrel which extends from the base portion in the intersecting direction, is located on a rear side of the first barrel in the axial direction, the method comprising:
a peeling step of peeling the covering portion of the electric wire to form a core wire exposed portion;
an adhesive member pasting step of pasting an adhesive member onto the covering portion before contacting the core wire to the crimp terminal, the adhesive member having a base member and adhesive layers formed on both sides of the base member of the electric wire such that the adhesive layer wraps a whole circumference of the covering portion;
a placing step of placing the electric wire with respect to the crimp terminal before crimping such that the second barrel and the adhesive member overlap;
a crimping step of crimping the electric wire and the crimp terminal by crimping the first barrel onto an outer circumference of the core wire and the second barrel onto the adhesive member and the covering portion such that a core wire exposed portion and the covering portion are exposed to an outside between the first barrel and the second barrel; and
an anticorrosive portion forming step of applying an anticorrosive agent to at least the opening portion and curing the anticorrosive agent to form an anticorrosive portion.