Patent ID: 7985923

Claim:
A terminal crimping structure, comprising: a terminal that is crimped to a copper alloy wire of an electric wire which has a copper alloy core wire portion composed of a copper alloy wire element and a sheath portion covering the copper alloy core wire portion, wherein the terminal has a crimping piece portion crimped to the copper alloy core wire portion; wherein in the case where a cross-sectional area of the copper alloy core wire portion is 0.08 mm 2 to 0.13 mm 2 , a rate of compression of the copper alloy core wire portion by the crimping piece portion is determined from a relative relation between a parameter varying according to the ratio of (the cross-sectional area of the copper alloy core wire portion at a crimped portion)/(the cross-sectional area of the copper alloy core wire portion before crimping) and a parameter varying according to the ratio of (a cross-sectional area of an annealed copper core wire portion at a crimped portion)/the cross-sectional area of the annealed copper core wire portion before crimping) which is the rate of compression of the annealed copper core wire portion by the crimping piece portion.