Dipping varnish-coated cooling shell of a housing for an electric machine
AssigneeHans-Jurgen Vehner and Gunter Sonnauer
InventorsHans-Jurgen Wehner, Gunter Sonnauer
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Abstract
A coolable housing shell for an electric machine, which is produced as a cast part, accommodates a concentric interior rotor/stator arrangement, coils, and end windings, and comprises a clear, open, through passage that is embodied in a symmetric, concentric, and/or coaxial manner relative to an imaginary axis of rotation of the machine. Said housing shell is interspersed with one or several cooling channels so as to form a coolant circuit. The inner surfaces of the shell and the inner walls of the channel/s have a coating via a cathodic dipping varnish method.
Claims14
A coolable housing jacket (1) for an electric motor, which is manufactured as a cast moulded part, is formed for receiving a concentric internal rotor/stator arrangement (23) together with windings and winding overhang (24) with a through-passage (3) that is symmetrical, concentric and/or coaxial with respect to a hypothetical motor axis of rotation, and which is penetrated by one or more cooling channels (2, 2a-h) to form a coolant circuit, characterised by a coating of the jacket inner faces including the channel internal walls via a cathodic dip-varnishing process.
Dependencies are inferred from the claim text.