Field coil assembly of electromagnetic clutch for power transmission apparatus and manufacturing method thereof

A field coil assembly of an electromagnetic clutch, the field coil assembly comprising:

• a bobbin from which lead wires, which are both ends of a coil made of an aluminum-based material, protrude outward;
• a core that surrounds the bobbin such that the lead wires are exposed;
• a bobbin terminal installed at the bobbin while being adjacent to the lead wire of the coil;
• and
• a connector coupled to the core and including a lead wire terminal,
• wherein the lead wires of the coil are connected to the bobbin terminal through heating and pressing,
• wherein the connector comprises:
• a holder fixed at one side of the core;
• and
• a clip coupled to the holder while fixedly interposing the lead wire terminal therebetween, and
• wherein the holder is provided with a guide boss and a fixing boss, the clip is formed with a guide hole and a coupling hole into which the guide boss and the fixing boss are inserted, and the holder and the clip are fixed to each other by a fusing process.