Patent ID: 6315656
Filing Date: 2001-11-13
Classification: H02B,H05K

Abstract:
In a switchgear cabinet with a double-walled wall acting as a heat exchanger and formed by an outer wall element (20) and an inner wall element (21) wherein the inner wall element (21) has openings for connecting a fan in an upper area and a lower area, comprising:a fan unit (30) and an intermediate housing (40), wherein the fan unit (30) is operated as a suction fan or a pressure fan and is connectible with the intermediate housing (40);the fan unit (30) has identical fastening flanges (31, 33) on an inlet side and an outlet side which are aligned parallel with respect to each other and are selectively connected with an inlet fastening plane (41) of the intermediate housing (40);an outlet fastening plane (49) of the intermediate housing (40) which is connectible with the inner wall element (21) is at an acute angle with respect to an inlet fastening plane (41) of the intermediate housing (40);with the fan unit (30) connected as the suction fan with the intermediate housing (40) the fan unit (30) connected via the intermediate housing (40) in an area of an upper opening of the openings with the inner wall element (21); andair flow in the heat exchanger aspirated from the switchgear cabinet having a downward oriented component, and the fan unit (30) connected as the pressure fan with the intermediate housing (40) aspirating the air flow out of the heat exchanger from a top to a bottom of the switchgear cabinet.