Method and apparatus for transfer molding of electric motor cores and magnetizable inserts
US11996746B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 28, 2021 |
| Grant date | May 28, 2024 |
| Priority date | — |
| Expiry date | Aug 13, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2201/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of securing magnetizable inserts within cores of an electric converter includes placing an assembly of rotor cores in a transfer molding press, the magnetizable inserts being disposed within cavities of the rotor cores and the cavities of the rotor cores being in fluid communication, placing a polymer preform proximate a central portion of the assembly of rotor cores, displacing the polymer preform such that the polymer preform changes state and flows radially and then axially through each of the cavities of the rotor cores, removing the assembly of rotor cores from the transfer molding press, and removing polymer waste from the assembly of rotor cores.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.