CABINET FOR ELECTRIC AND ELECTRONIC SYSTEMS

专利名称：CABINET FOR ELECTRIC AND ELECTRONIC

SYSTEMS

发明人：BOEHMER, PETER,BRETSCHNEIDER,

RAINER,HOENISCH, HERBERT

申请号：EP97930317.0申请日：19970613公开号：EP0904676A1公开日：19990331

摘要：A cabinet for electric and electronic systems, in particular a switchboard cabinet,has a functional chamber closed in a dust- and water-tight manner and at least one doorthat closes the chamber in a dust- and water-tight manner. The switchboard cabinet ischaracterised in that a structure composed of several shells is provided around thefunctional chamber (1). This structure consists of baffles (11), the wall (2) of the functionalchamber and an outer casing (5). An inner, channel-shaped space (6) extends between thebaffles (11) and the wall (2) of the functional chamber. An outer, channel-shaped space(6') extends between the wall (2) of the functional chamber and the outer wall (5).Controllable, load-dependable mass flows may be independently applied to the twochannel-shaped spaces (6, 6'). The mass flows may be adjusted in a range from 0 to amaximum value. The maximum value is determined on the one hand by the hydraulicresistance of the elements (12, 7, 6') and the characteristic curve of the ventilator (8') andon the other hand by the hydraulic resistance of the equipment in the functional chamberand of the inner channel-shaped space (6), and by the characteristic curve of the

ventilator (8). Heat transport from the functional chamber (1) to the environment or from

the environment to the functional chamber (1) may thus be intensified and/or limited.This cabinet has in particular good cooling properties and offers with simple technicalmeans an improved thermal protection of the functional chamber depending on theconditions of use.

申请人：TECHNISCHE UNIVERSITAET DRESDEN,KNUERR MECHANIK AG

地址：Dezernat 5, SG 5.1 01062 Dresden DE,Schatzbogen 29 D-81829 Munchen DE

国籍：DE,DE

代理机构：Heim, Hans-Karl, Dipl.-Ing., et al

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