Abstract: In a linear motor cooling module provided by the invention, mainly at least one spoiler element is provided in a flow channel, the spoiler element has a first protrusion and a second protrusion that are staggered with each other, each of the protrusions extends toward a center of the flow channel in opposite directions, so that a cooling fluid flowing through the spoiler element is blocked by the first protrusion and the second protrusion respectively, thereby forming a turbulence to improve uneven temperature distribution and poor cooling effect.

Abstract: A rotor of an inner-rotor motor includes a shaft having a connecting portion. A permanent magnet is mounted around the connecting portion of the shaft. The permanent magnet includes at least one first engaging portion. At least one coupling member includes a through-hole. The shaft extends through the through-hole. The at least one coupling member includes a second engaging portion engaged with the at least one first engaging portion of the permanent magnet.

Abstract: A rotor of an inner-rotor motor includes a shaft having a connecting portion. A permanent magnet is mounted around the connecting portion of the shaft. The permanent magnet includes at least one first engaging portion. At least one coupling member includes a through-hole. The shaft extends through the through-hole. The at least one coupling member includes a second engaging portion engaged with the at least one first engaging portion of the permanent magnet.