A terminal connection component, comprising: press-fit terminals; and terminal metal-fittings, wherein said press-fit terminals have a plate shape in which a taper is disposed at one tip, and said terminal metal-fittings have a plate shape and have a fitting section (610, 620) at one end, wherein said fitting sections (610, 620) of said terminal metal-fittings have a first hole part and a second hole part from said one end in parallel, wherein said first hole part is a rectangular shape, wherein said second hole part is a rectangular shape, and a central portion of one long side near said first hole part is shifted to an interior of said second hole part so that a width at the central portion of said second hole part is slightly shorter than a thickness of said press-fit terminals, and wherein said tips of said press-fit terminals are press-fitted to and are connected to said fitting sections (610, 620) of said terminal metal-fittings, and a portion between said first hole part and said second hole part of said fitting section (610, 620), which serves as an elastic deformation section, is elastically deformed in a thickness direction of said press-fit terminals and biases said press-fit terminal so that said press-fit terminals are surely press-fitted to said fitting sections (610, 620) of said terminal metal-fittings; wherein said taper, which is disposed at the tip of said press-fit terminal, has round sections having a curvature at both corner portions in an end portion of said plate, and has a portion wherein a thickness of side surface portions of said plate decreases toward said end portion. press-fit terminals; and terminal metal-fittings, wherein said press-fit terminals have a plate shape in which a taper is disposed at one tip, and said terminal metal-fittings have a plate shape and have a fitting section (610, 620) at one end, wherein said fitting sections (610, 620) of said terminal metal-fittings have a first hole part and a second hole part from said one end in parallel, wherein said first hole part is a rectangular shape, wherein said second hole part is a rectangular shape, and a central portion of one long side near said first hole part is shifted to an interior of said second hole part so that a width at the central portion of said second hole part is slightly shorter than a thickness of said press-fit terminals, and wherein said tips of said press-fit terminals are press-fitted to and are connected to said fitting sections (610, 620) of said terminal metal-fittings, and a portion between said first hole part and said second hole part of said fitting section (610, 620), which serves as an elastic deformation section, is elastically deformed in a thickness direction of said press-fit terminals and biases said press-fit terminal so that said press-fit terminals are surely press-fitted to said fitting sections (610, 620) of said terminal metal-fittings; wherein said taper, which is disposed at the tip of said press-fit terminal, has round sections having a curvature at both corner portions in an end portion of said plate, and has a portion wherein a thickness of side surface portions of said plate decreases toward said end portion.