Elastic-locking winding carrier for preformed coil assemblies of an electric motor

A preformed coil assembly, comprising:

• a preformed coil having an elongated opening and two winding carriers arranged at respective ends of the elongated opening of the preformed coil;
• wherein at least one of the winding carriers is arranged as an elastic-locking winding carrier including a winding portion adapted to receive a winding including a wound electrical conductor to produce the coil, the winding portion including an upper portion and a lower portion, a first opening being arranged on the winding portion, a second opening being arranged on the winding portion, a first flexible member being arranged inside the first opening, and a second flexible member being arranged inside the second opening;
• and
• wherein the first and second flexible members are arranged so that at least one of the first and second flexible members cooperates with a tooth of the stator as a function of a magnitude of a gap between the tooth and the lower portion of the winding portion when the preformed coil assembly is mounted on the tooth to fix the preformed coil assembly to the tooth.

A rotary electric motor, comprising:

• a stator including:
• radial teeth;
• and
• a preformed coil assembly mounted on each tooth and including a preformed coil having an elongated opening and two winding carriers arranged at respective ends of the elongated opening of the preformed coil;
• wherein at least one of the winding carriers is arranged as an elastic-locking winding carrier including a winding portion adapted to receive a winding including a wound electrical conductor to produce the coil, the winding portion including an upper portion and a lower portion, a first opening being arranged on the winding portion, a second opening being arranged on the winding portion, a first flexible member being arranged inside the first opening, and a second flexible member being arranged inside the second opening;
• and
• wherein the first and second flexible members are arranged so that at least one of the first and second flexible members cooperates with a respective tooth of the stator as a function of a magnitude of a gap between the tooth and the lower portion of the winding portion when the preformed coil assembly is mounted on the tooth to fix the preformed coil assembly to the tooth.