Abstract: The invention relates to a fan device with at least one locking element for securing the fan device to a wall portion, in particular to an electrical enclosure wall, with a front and a rear face. The fan device is inserted into a front-face wall portion opening in a pressureless manner, and the locking element is movable in the direction of the rear face of the wall portion in the inserted state.

Abstract: The invention relates to a fan device with at least one locking element for securing the fan device to a wall portion, in particular to an electrical enclosure wall, with a front and a rear face. The fan device is inserted into a front-face wall portion opening in a pressureless manner, and the locking element is movable in the direction of the rear face of the wall portion in the inserted state.

Abstract: A fan holder for a fan includes a frame that has an opening through which a gaseous medium flows during operation. The opening forms an accommodating region that is designed to accommodate various replaceable inserts, in particular a filter insert and a flap device, and has at least one retaining device for fastening the particular insert.

Abstract: The invention relates to a heating device having a heating arrangement in a housing through which a fluid medium can flow in a longitudinal direction, wherein the at least one heating arrangement comprises at least two grid elements as heat exchanger plates with openings through which the medium flows, the grid planes of which are embodied for the exchange of heat energy between the plate and the fluid medium, at least one heating element, in particular a PTC element, arranged between the grid elements, wherein the at least one heating arrangement is arranged in the housing in such a way that the grid planes of the grid elements are arranged substantially perpendicularly to the longitudinal direction, so that the flow of medium is oriented substantially perpendicularly to the grid planes, wherein the grid elements and the at least one heating element are arranged braced relative to one another by means of at least one tensioning element so that they touch, and wherein the grid elements each have at least one

Abstract: A fan heater including a housing through which air is able to flow in a longitudinal direction, a blower to propel the air and at least one heating element mounted elastically in the housing by means of a fixing element. Moreover the heating element is a PTC element and the blower is mounted separately from the PTC element in the housing. An assembly is also disclosed, which includes a fan heater as aforesaid, wherein at least two adapter plates, each exhibiting at least one fastening element for fixing the fan heater to a location intended for it and devices for fixing optionally one of the adapter plates to a housing in the fan heater, are provided.

Abstract: The invention relates to a device for monitoring an air supply flow or a volumetric air flow, in particular for ventilators which can also be applied for extremely low flow speeds and/or throughput rates. The aim of the invention is to produce a device cheaply and simply with essentially wear-free components which reacts to changes in the flow speed and/or the throughput rate without a time delay. Said aim is achieved, whereby the device comprises an approach flow device, the position of which may be altered relative to a mounting, against a retaining force FM and which may be impinged by the air flow for monitoring to generate a change in the position thereof. Furthermore, magnetic devices for the generation of a magnetic field dependent on the position of the approach flow device, detection means for recording the magnetic field and measuring means for generation of a measured signal dependent on the magnetic field are provided. The magnetic field forms at least a part of the retaining force FM.

Abstract: The invention relates to a device for generating an air current, in particular for cooling or heating electric components or sub-assemblies. The aim of the invention is to develop a device of this type in order to incorporate an additional air-current monitor in a simple and cost-effective manner, thus ensuring the reliable and accurate monitoring of the ventilation process. The achieve this, the device is provided with an integrated air-current monitor on a housing part, the latter surrounding and/or being allocated to the fan. Said monitor is positioned in such a way that it is situated in the air current.

Abstract: The invention relates to a hood (10) for a filter ventilator, which is connected to an outside wall (40) of a space to be ventilated, in particular the outside wall (40) of a control box, circuit housing, or case for various kinds of devices, and which includes an air inlet (11), an air outlet (12), a filter (20) mounted in the air outlet and a maintenance portal (13), in particular for exchanging the filter (20). In order to enable effortless and rapid exchange of the filter, the maintenance portal (13) is made such that it can be closed by at least one pivotable flap 30.