Linear motor and method to manufacture said linear motor

Linear motor as in any claim hereinbefore, characterised in that said armature (14) is made in at least two half-bodies (18a, 18b) which can be coupled together.

Linear motor as in any claim hereinbefore, characterised in that said armature (14) is able to contain two coils (16a, 16b), or multiples of two, adjacent on a plane transverse to the direction of movement

Linear motor as in any claim hereinbefore, characterised in that said armature (14) comprises at least a module able to define a plurality of compartments (15) to house respective coils (16) aligned in the direction of movement, the longitudinal development of said module being such as to cover an even number of permanent magnets (12).

Linear motor as in any claim hereinbefore, characterized in that the distance “p” between two adjacent housing compartments (15) is equal to or less than the distance between two adjacent permanent magnets (12).

Method to manufacture an electric motor of the type comprising an armature equipped with a plurality of compartments (15) inside which are stably housed respective electric coils (16) and two fixed bars (22) cooperating with respective sides of said armature, on each of which are mounted a plurality of permanent magnets (12) arranged, during use, facing said electric coils (16), the method comprising achieving said armature (14) using at least two half-bodies (18a, 18b), made of aluminium or its alloys or of ceramic material and able to be coupled together, said bodies (18a, 18b) being able to define, once assembled, a plurality of compartments (15) housing respective coils (16), an insulating and binding material (20) such as a polymerizable resin being then cast in its liquid or melted state into fissures (19) defined between said two coupled half-bodies (18a, 18b) which thus function as a mold for the casting and polymerization of said insulating and binding material (20).