Housing attachment for an electrical machine to ingress protection class ip 24w

A housing attachment for an electrical machine, comprising:

• a housing body having a lower face having first and second edge areas for placement on an upper face of an electrical machine, with one of the first and second edge areas having a first air outlet opening facing the upper face of the electrical machine, said lower face defining a center area arranged between the first and second edge areas at a distance from the upper face of the electrical machine and having a first air inlet opening, said housing body having an inlet air channel and an outlet air channel, said inlet air channel extending from the first air inlet opening to the first air outlet opening for drawing inlet air from an air inlet of the electrical machine and being bounded on a side facing away from the lower face by a first boundary wall, said outlet air channel being bounded on a side facing the lower face of the housing body by a second boundary wall and spanning over the inlet air channel to extend from a second air inlet opening, arranged in the other one of the first and second edge areas and facing the upper face of the electrical machine, to a second air outlet opening for blowing out outlet air from an air outlet of the electrical machine, said second air outlet opening arranged on a high face of the housing body, with the high face defining with the one of the first and second edge areas a common edge which is located furthest away from the other one of the first and second edge areas;
• a separating device arranged in the inlet air channel between the first air inlet opening and the first air outlet opening so that the inlet air channel receives a U-shaped or curved configuration, wherein the first boundary wall is inclined at least in a center section thereof to thereby define between the first boundary wall and the first air inlet opening in a flow direction of the inlet air a first distance which decreases at least towards the separating device, wherein the second boundary wall is inclined at least in an end area of the housing body adjacent to the second air outlet opening, thereby defining between the second boundary wall and the first air outlet opening in a flow direction of the outlet air a second distance which decreases at least in the end area, said housing body having a first drip edge arranged on the first boundary wall to permit water present in the center section of the first boundary wall to drip off and to flow directly or indirectly to the first air inlet opening;
• a plurality of first laminates arranged in an area of the first air inlet opening to deflect the inlet air flowing into the inlet air channel to the other one of the first and second edge areas;
• a plurality of second laminates arranged in an area of the second air outlet opening to impose on the flow direction of the outlet air flowing out of the outlet air channel a component which is directed to the upper face of the electrical machine;
• and
• a plurality of third laminates arranged in the outlet air channel in the end area of the housing body to deflect the outlet air in the outlet air channel away from the upper face of the electrical machine.