Patent ID: 11955876
Assignee: MIDEA WELLING MOTOR TECHNOLOGY (SHANGHAI) CO., LTD.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  H | IPC H

Claim 13:
14. The fan according to claim 13, wherein:
in a projection of the impeller on a plane perpendicular to an axis of the driving structure, an angle between a line between the second inner end point and an axis of the driving structure and a line between the second outer end point and an axis of the driving structure is greater than or equal to 0° and less than or equal to 5°; and/or
in a projection of the impeller on a plane perpendicular to an axis of the driving structure, an angle between a line between the third inner end point and an axis of the driving structure and a line between the third outer end point and an axis of the driving structure is greater than or equal to −2° and less than or equal to 2°; and/or
the front edge protrudes toward a direction of the air inlet, and a length of the rear edge is less than a length of the front edge.