摘要 |
PROBLEM TO BE SOLVED: To provide a method of manufacturing a reactor, having a resin molding formed at a periphery of a reactor precursor, in which cracking starting at a pin mark made by a presser pin applied during the molding of the resin molding can be effectively suppressed.SOLUTION: A method of manufacturing a reactor R includes: putting a reactor precursor Rm having a coil CL formed at a part of a magnetic core CR in a form block K comprising an upper mold Ka having resin injection holes Ka1, Ka2 and presser pins P1, P2, and a lower mold Ku; injecting resin into the form block K through the resin injection holes Ka1, Ka2 while fixing the reactor precursor Rm with the presser pins P1, P2; and molding a mold resin body M at a periphery of the reactor precursor Rm. A buffer material A is arranged on a surface of the core CR before the rein injection, and the reactor precursor Rm is pressed with the presser pin P2 with the buffer material A interposed when the resin injection holes and presser pins are apart from each other by 1/2 or less of the width of the reactor to be manufactured. |