Flat-type stator with multilayer coils for disc-type motor

A flat-type stator with multilayer coils for a disc-type motor provided with a stator coil and a flat stator base (1) made of an insulating non-magnetic conductive material, wherein a plurality of hollow coil assemblies (2) are arranged on two side surfaces perpendicular to a direction of the stator base in an overlapped shape in the stator coil, and the plurality of radially adjacent coil assemblies (2) are arranged in a ring or a strip on the stator base (1);

• the coil assembly (2) is formed by stacking even-numbered layers of single coils (4) overlapped with the stator base in a vertical direction, each single coil (4) is composed of even-numbered layers of single-layer coils (5) wound by a single wire, the single-layer coil (5) is provided with a single axial wire, and an axial dimension of the single-layer coil (5) is a width of a coil wire (6);
• metal wires are sequentially connected in series among a circle of horizontally adjacent coil assemblies to form a coil unit (3), the single coils (4) in the coil unit (3) have a same structure and a same shape and are not overlapped axially, numbers of layers of the coil assemblies (2) are the same, winding directions of the single-layer coils (5) in the same single coil (4) are the same, and a winding-in end (7) and a winding-out end of the single coils (4) are both located on an outer ring of the coil and are tangentially led out without radially crossing the metal wires.