COOLANT COMPRESSOR

A refrigerant compressor has a compressor housing in which a cylinder housing and an electric motor are fastened to one another. The electric motor includes a stator provided with a stator bore, the coil core of which is provided with receiving grooves for accommodating a stator winding having any given number of windings, coil groups, and poles. The coil core is preferably composed of interconnected stator segments and the stator winding in the region of the end faces of the coil core has winding heads which are each situated outside the receiving grooves. The winding heads of the stator winding are pressed against an insulating element which is situated between the coil core and the winding heads and which has an arbitrary number of projecting additional insulating sections in a peripheral edge region opposite the stator bore.