Patent ID: 8109743
Filing Date: 2012-02-07
Classification: F04D

Abstract:
1. A serially arranged axial flow fan unit comprising: a first axial flow fan including: a second axial flow fan including: the first lead lines extend from the first housing through the first recess and the second lead lines extend from the second housing through the second recess; the first recess is spaced apart from or partially overlapped with the second recess along a circumferential direction; the plurality of first lead lines and the plurality of second lead lines are arranged directly adjacent to one another such that the plurality of first lead lines are drawn out of the axial flow fan unit through the first guide portion and the plurality of second lead lines are drawn out of the axial flow fan unit through the first guide portion and the second guide portion; and the first guide flange portion and the second guide flange portion being circumferentially aligned with one another, both the first guide portion and the second guide portion being arranged on a same circumferential side of the first guide flange portion and the second guide flange portion.