Coil assembly, I-shaped mover seat and linear motor

The invention belongs to the technical field of linear motors, and relates to a coil assembly, an I-shaped rotor seat and a linear motor. The number of the combined coils is two, and the two combined coils are arranged on the two sides of the spacing board respectively; the two first insulating plates are arranged on the sides, away from the spacing plate, of the two combined coils respectively; the second insulating plate is arranged at the top end of the combined coil; the combined coil comprises a first unit coil, a second unit coil and a third unit coil which are stacked in sequence. The hollow part in any one of the first unit coil, the second unit coil and the third unit coil can be filled with the side edges of the other two unit coils, the density of the unit coils in the unit area is increased, when the coil assembly is applied to the rotor base, larger thrust can be generated after the coil assembly is powered on, and the service life of the rotor base is prolonged. And high-speed operation under th