| 摘要 |
<p>#CMT# #/CMT# An air entrance/ventilation device has a fan/blower (20), or dispenses with a fan/blower, for assembly in a wall penetration, especially of a housing for extraction of heat from e.g. switch-cabinets, electronics cabinets etc, in which the ventilation/air entrance device (200) has a basic housing (21) with or without a fan/blower support (25) and a surrounding frame formed from side walls and a designer cover (not shown here). In the swivelling axis of the designer cover's oblique side walls (30a, 21a) is provided a springy tongued side wall section (35). #CMT#USE : #/CMT# As air ventilation device, especially a filter fan or air exit filter. #CMT#ADVANTAGE : #/CMT# Facilitates a fast exchange of filter mats without resorting to use of tools and without incurring high constructional costs. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# An exploded view of an air-ventilation device is shown. 20 : Blower/fan 21 : Basic frame 25 : Blower/fan support 60 : Filter mat 100 : Front cover 200 : Air entrance/ventilation device.</p> |
