Drainage system for electric machines, and electric machines comprising same

Abstract

This invention discloses a drainage system with high protection degree and low cost applicable to closed-type electrical machines and an electrical machine using thereof, comprising a casing equipped with: a drainage body (1) with a roughly cylindrical geometry, but capable of assuming other geometrical forms, manufactured from an impermeable material equipped with one or more holes (3) positioned over said body (1), forming one or more internal and cross-section channels (7) coupled to the drainage hole (8) of the casing (2) in communication with the internal part (A) of the casing (2) with the external part (B) of the casing (2); a plurality of cross-section filaments (4) are positioned in the hole or holes (3), crossing longitudinally the channel or channels (7) and said filaments (4) may be equipped with length superior to the drainage body length (1).

Dependencies are inferred from the claim text.