Monophase electromechanical transducer, in particular of the horological type, and electromechanical device including at least one such transducer

An electromechanical device including a plurality of electromechanical transducers whose plurality of respective stators are partially formed by a common planar structure defining a plurality of holes through which pass respectively a plurality of rotors of said plurality of electromechanical transducers, wherein at least one transducer of said plurality of electromechanical transducers is a monophase transducer including:

• a stator made of magnetic material;
• a rotor including a permanent magnet;
• a coil;
• said stator including a planar structure and a core around which said coil is mounted, said planar structure defining two magnetic stator poles whose two respective polar expansions define a hole through which said rotor passes, the permanent magnet of such rotor being magnetically coupled to said two polar expansions, said core having its first and second ends respectively connected to said two magnetic stator poles, wherein said coil is situated in an opening, provided in said planar structure, the edge of which is closed on itself so that the part of said planar structure defining said second magnetic pole surrounds the part of this planar structure defining said first magnetic stator pole and said coil in projection in the general plane of said planar structure.