Systems and methods for securing magnetic coils in downhole linear motors
US10260498B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 4, 2016 |
| Grant date | Apr 16, 2019 |
| Priority date | — |
| Expiry date | Mar 11, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K41/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Systems and methods for securing coils of magnet wire to a support core in a linear motor that is used, for example, in an ESP. A hollow member such as a cylindrical metal tube is provided as a support core which is adapted to receive a mover of the linear motor. Coils of magnet wire are positioned at the exterior of the support core (e.g., wound around the core). An outer layer of shrink-wrap material is placed around the support core and coils and is heated, causing it to shrink and conform to the coils and the support core. The shrink-wrap material provides pressure against the coils which holds them securely against the support core. This assembly is then positioned within a stator housing and secured to form the stator for the linear motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.