Stator switching module
AssigneeFord Global Technologies, LLC
InventorMatthew Joseph
Life of this patent
Estimating the term…
Abstract
A switching module includes a housing that can be attached directly to an end of a stator and over line and neutral phase hairpins of the stator, electrically conductive platforms disposed in the housing and that can contact some of the hairpins, switches disposed in the housing, connected with the platforms, and that can selectively change connections of the hairpins between wye and delta configurations, and a conduit defining a coolant channel through the housing.
Claims15
An electric machine assembly comprising:
- a stator including three or more phase hairpins and neutral hairpins;
- and
- a switching module attached directly to an end of the stator and over the phase hairpins and neutral hairpins, and including a housing defining a cavity containing (i) platforms in contact with the some of the phase hairpins and neutral hairpins and (ii) switches connected with the platforms and configured to selectively change connections of the phase hairpins between a wye configuration and a delta configuration.
A switching module for a stator comprising:
- a housing configured to be attached directly to an end of the stator and over line and neutral phase hairpins of the stator;
- electrically conductive platforms disposed in the housing and configured to contact some of the hairpins;
- switches disposed in the housing, connected with the platforms, and configured to selectively change connections of the hairpins between wye and delta configurations;
- and
- a conduit defining a coolant channel through the housing.
A method for mounting a switching module to an end of a stator comprising:
- arranging a housing of the switching module over an end of the stator such that line and neutral hairpins projecting from the end of the stator contact electrically conductive platforms of the switching module that are electrically connected with switches configured to selectively change connections of the hairpins between a wye configuration and a delta configuration;
- welding the platforms to the hairpins;
- and
- filling at least some of the housing with a resin that surrounds the platforms and portions of the hairpins and hardens.
Dependencies are inferred from the claim text.