Tangential motor, tangential motor rotor and rotor iron core thereof

A rotor iron core, comprising a rotor body and a plurality of permanent magnet slots disposed on the rotor body, wherein:

• a fixing hole for fixing a rotor punched segment and a flux isolating hole are configured to be disposed on a rotor magnetic pole between two adjacent permanent magnet slots;
• the flux isolating hole is disposed outside the fixing hole in a radial direction of the rotor body;
• a width of the flux isolating hole smoothly increases in a direction from an outer side of the rotor body toward a center thereof;
• a length of the flux isolating hole in the radial direction of the rotor body is F, and a radius of the rotor body is R;
• and
• 0.4≥F/R≥0.1.

A rotor iron core, comprising a rotor body and a plurality of permanent magnet slots disposed on the rotor body, wherein:

• a fixing hole for fixing a rotor punched segment and a flux isolating hole are configured to be disposed on a rotor magnetic pole between two adjacent permanent magnet slots;
• the flux isolating hole is disposed outside the fixing hole in a radial direction of the rotor body;
• a width of the flux isolating hole smoothly increases in a direction from an outer side of the rotor body toward a center thereof;
• a vertex of a protrusion of the flux isolating hole and a center line of the flux isolating hole intersect at an intersection M, and a distance from the intersection M to an outside wall of the flux isolating hole is H, and in the radial direction of the rotor body, a length of the flux isolating hole is F;
• and
• 0.5≥H/F≥0.3.