Fan cover and corresponding rotating motor

The invention relates to a fan casing (100) comprising an air suction zone (110) having a grid 101 (101), the air suction zone (110) comprising a central region (102) and a peripheral region (103), in which at least one first rib (111) and/or at least one second rib (112) and/or at least one third rib (113) and at least one radial rib (114) are arranged between these regions (102, 103), wherein the radial rib (114) is preferably an annular rib having an L-or U-shaped, preferably L-shaped cross-section, and is connected to at least one of the first and/or second and/or third rib (111, 112, 113). The invention also relates to a rotor and a corresponding rotary electric machine (200). 本发明涉及一种风扇罩(100)，所述风扇罩包括具有网格101(的)吸气区(110)，吸气区(110)包括中心区域(102)和周边区域(103)，其中至少一个第一肋(111)和/或至少一个第二肋(112)和/或至少一个第三肋(113)以及至少一个径向肋(114)排列在这些区域(102、103)之间，其中所述径向肋(114)优选是具有L形或U形、优选是L形截面的环形肋，并与所述第一和/或第二和/或第三肋(111、112、113)中的至少一个相连接。本发明还涉及一种转子和相应的旋转电机(200)。