IPC Main Group
H02K 21/00 Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- ELECTRICITY
- Class:
- GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
- Subclass:
- DYNAMO-ELECTRIC MACHINES
6 direct subcodes
Child Classifications
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- H02K 21/02 Details
- H02K 21/12 with stationary armatures and rotating magnets
- H02K 21/26 with rotating armatures and stationary magnets
- H02K 21/38 with rotating flux distributors, and armatures and magnets both stationary
- H02K 21/46 Motors having additional short-circuited winding for starting as an asynchronous motor
- H02K 21/48 Generators with two or more outputs