Fan for mounting on a wall member of a control cabinet

• US 6,315,656 B1
• Filed: 09/21/2000
• Issued: 11/13/2001
• Est. Priority Date: 02/07/1998
• Status: Expired due to Fees

• Current Assignee: Rittal-Werk Rudolf Loh Gmbh & Co. Kg
• Original Assignee: Rittal-Werk Rudolf Loh Gmbh & Co. Kg
• Inventors: Pawlowski, Adam
• Primary Examiner(s): Joyce, Harold
• Assistant Examiner(s): BOLES, DEREK
• Application Number:
  US09/601,782
• Time in Patent Office: 418 Days
• Field of Search: 454/184, 361/695, 361/696, 361/697
• US Class Current: 454/184
• CPC Class Codes: H02B 1/565 for cabinets
• CPC Class Codes: H05K 7/20172 Fan mounting or fan specifications

Abstract

A fan with an input mounting plane and an output mounting plane. The fan is adapted to be mounted on a control cabinet wall member with an aeration passage. This invention produces an air flow which is as dust-free and turbulence-free as possible. For this purpose, the input mounting plane and the output mounting plane form an acute angle.

Claims

1. 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); and

air 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.

2. In the switchgear cabinet in accordance with claim 1, wherein

the fastening flange (31, 32) of the fan housing is rectangular.

3. In the fan in accordance with claim 2, wherein

the outlet fastening plane (49) of the intermediate housing (40) has a plurality of fastening bores (48) for accommodating a plurality of fastening screws (50) which can be screwed into a plurality of screw receivers (23) in the area of the upper opening (22) of the wall element (21).

4. In the fan in accordance with claim 3, wherein

the intermediate housing (40) is closed by a plurality of wall elements (43, 44, 46) between the inlet fastening plane (41) with an inlet opening (42) and the outlet fastening plane (49) with an outlet opening (45).

5. In the fan in accordance with claim 4, wherein the fan is operated as one of a suction fan and a pressure fan.

6. The fan in accordance with one of claims 1 to 5, characterized in that it is designed as a fan with a filter.

7. The fan in accordance with one of claims 1 to 6, characterized in that it can be operated as a suction or a pressure fan.

8. In the fan in accordance with claim 1, wherein the intermediate housing (40) is closed by a plurality of wall elements (43, 44, 46) between the inlet fastening plane (41) with an inlet opening (42) and the outlet fastening plane (49) with an outlet opening (45).

9. In the fan in accordance with claim 1, wherein the fan comprises a filter.

10. In the fan in accordance with claim 1, wherein the fan is operated as one of a suction fan and a pressure fan.