Square stator of switched reluctance motor

The invention provides a square stator of a switched reluctance motor. An external heat-absorbing frame has a cylindrical structure; a fixing stud is assembled on an outer side of the external heat-absorbing frame; a reinforcing rib has a prism-shaped structure of which a cross section is a regular triangle; a plurality of heat-absorbing tubes of different specifications are fixed inside the external heat-absorbing frame; a silicon steel sheet is assembled inside the external heat-absorbing frame; and slots are distributed on an inner ring of the silicon steel sheet. Fixing of the silicon steel sheet is realized by the fixing stud, so that the overall stability of the square stator is improved effectively. The reinforcing rib is designed, so that the strength of the surface of the external heat-absorbing frame is improved, and the phenomenon of fall-apart of the external heat-absorbing frame caused by rotation of a rotor is avoided. Moreover, a cooling tube is designed, so that absorption of heat on the silic