Method for manufacturing a coil module for a stator for a tubular linear motor
US9973065B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2015 |
| Grant date | May 15, 2018 |
| Priority date | — |
| Expiry date | Jun 18, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49009
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for manufacturing a coil module for a stator for a tubular linear motor includes placing a plurality of bobbins and spacers on a winding mandrel and winding the plurality of bobbins with a single length of wire to form a set of coils. Three sets of such coils are interleaved on an encapsulation mandrel. A plurality of metal comb shaped elements, each including a longitudinal spine and a plurality of teeth are distributed about the circumference of the three interleaved sets of coils to form a coil module. The coil module and the mandrel are surrounded with an encapsulation mold. An encapsulating material is introduced into the encapsulation mold. The encapsulated coil module is removed from the encapsulating mold and the encapsulation mandrel after setting of the encapsulating material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.