| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an air-cooled rotating electric machine having improved cooling performance. <P>SOLUTION: A rotating electric machine 1 includes a case 70, a stator 80, a rotor 10 and plate portions 85. The rotor 10 includes projecting portions 19 projecting to sides of a front side bottom portion 72 and a rear side bottom portion 73 relative to end portions in the axial direction and extending from the radial inner side to the outer side. The plate portions 85 are located between the rotor 10 and the front side bottom portion 72 and the rear side bottom portion 73, and have central holes 851 each positioned at the center and having an inner diameter smaller than an outer diameter of the rotor 10 to divide a flow of cooling gas on the sides of the front side bottom portion 72 and the rear side bottom portion 73 and a flow of cooling gas on the rotor 10 side. Therefore, when the rotor 10 rotates together with a shaft 90, the cooling gas is circulated in a space between the rotor 10 and the front side bottom portion 72 and the rear side bottom portion 73, due to rotation of the projecting portions 19. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
