Method of curing a coating agent on a crimp terminal
View Patent ↗A wire-equipped crimp terminal includes a wire, a crimp terminal and a coating agent. The wire has a conductor exposed from an insulative sheath. The crimp terminal has a crimping piece which is press-deformed to embrace the conductor. The coating agent is coated to a first part of the crimp terminal. A recess is formed at a non-coating part of the crimp terminal where the coating agent is not coated. The coating agent is cured by irradiating light or an electron beam to the first part in a state where a part of the coating agent flowing out from the first part is received in the recess.
1. A method of curing a coating agent, comprising:
preparing a wire having a conductor exposed from an insulative sheath;
preparing a crimp terminal having a crimping piece which is press-deformed to embrace the conductor;
coating an electrically-conductive coating agent to a first part of the crimping piece such that the coating agent covers an area of the crimp terminal from the first part to a bare end of the conductor exposed from the insulative sheath;
forming a recess at a non-coating part of the crimp terminal where the coating agent is not coated; and
curing the coating agent by irradiating light or an electron beam to the first part in a state where the coating agent flowing out from the first part is received in the recess, wherein the coating agent is coated to the first part by a spray gun.
2. The method of curing a coating agent as set forth in claim 1 , wherein
the recess is formed at a boundary area between the first part and the non-coating part in the non-coating part.
3. The method of curing a coating agent as set forth in claim 2 , wherein
the first part includes at least one of a clearance between an inner surface of the press-deformed crimping piece and the conductor and an area including an outer surface of the press-deformed crimping piece and surface of the conductor exposed from a peripheral edge of the press-deformed crimping piece.
4. The method of curing a coating agent as set forth in claim 1 , wherein
the first part includes at least one of a clearance between an inner surface of the press-deformed crimping piece and the conductor and an area including an outer surface of the press-deformed crimping piece and surface of the conductor exposed from a peripheral edge of the press-deformed crimping piece.
5. The method of curing a coating agent as set forth in claim 1 , wherein
the recess is formed by driving or pressing a punch into a surface on one side of a bottom plate of the crimp terminal while maintaining a flat surface on an opposite side of the bottom plate opposite the one side.
6. The method of curing a coating agent as set forth in claim 1 , wherein
the recess is formed such that a total depth thereof is less than a plate thickness of a bottom plate of the crimp terminal.
7. The method of curing a coating agent as set forth in claim 6 , wherein
the total depth is greater than or equal to 50 percent of the plate thickness and less than or equal to 60 percent of the plate thickness.