Rotor of flat-type motor
US3997806A · kind A · utility
25Cited by
14References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 6, 1974 |
| Grant date | Dec 14, 1976 |
| Priority date | — |
| Expiry date | Dec 6, 1994 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K23/54
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotor for a flat-type motor is constructed to include a flat armature, which comprises a flat armature winding in the form of a disk, and an insulating resinous body in which the armature winding is embedded. The insulating resinous body has a greater thickness than the armature winding so as to cover the winding, but is formed with cooling structure, such as grooves and bores, in positions where the coil portions of the armature winding on which the magnetic flux of the field magnets acts effectively are embedded, thereby promoting dissipation of heat from the armature winding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.