Electromagnetic coil assembly for electromagnetic apparatus

An electromagnetic coil assembly for an electromagnetic apparatus comprising:

• a bobbin including a cylindrical tubular spool and a pair of annular flanges projecting radially from said spool;
• a coil formed of an electrical wire, said electrical wire wound around said spool between said flanges;
• a thermal protection device having a first and a second lead wires, each extending from one side thereof, said first lead wire connected to one end of said electrical wire through a first connecting member, said second lead wire connected to one end of a third lead wire of an electric circuit through a second connecting member, said thermal protection device, said first lead wire, said second lead wire, said first connecting member, said second connecting member, one end of said electrical wire, one end of said third lead wire disposed on a first end surface of said bobbin;
• and
• a first pair of projection portions, a first projection portion and a second projection portion, each having a hook-shaped cross-section and disposed on said first end surface of said bobbin, such that said first projection portion retains a starting end portion of said first lead wire and said second projection portion retains a starting end portion of said second lead wire.