Housing for a rotary electric machine and associated laminations
AssigneeLC Advanced Motor Technology Corporation
InventorsDylan Broomfield, Russel Hugh Marvin, Matthew Honickman
Life of this patent
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Abstract
A housing for a rotary electric machine having stacked laminations forming a stator core includes a first portion forming a slip fit with a first series of the stacked laminations. A second portion forms an interference fit with a second series of the stacked laminations.
Claims26
A housing for a rotary electric machine having stacked laminations forming a stator core, comprising:
- a first portion of a housing forming a slip fit with a first series of the stacked laminations;
- and
- a second portion of the housing forming an interference fit with a second series of the stacked laminations, wherein the second portion is provided on opposite longitudinal sides of the first portion.
A housing for a rotary electric machine having stacked laminations forming a stator core, comprising:
- a first portion of a housing having a welded connection with a first series of the stacked laminations for transmitting torque from the first series to the first portion;
- wherein the first portion has a slip fit connection with the first series forming a gap therebetween in which the welded connection is provided;
- and
- a second portion of the housing forming an interference fit with a second series of the stacked laminations for centering the laminations and the housing about the same axis.
The housing recited in 14, wherein the housing extends along an axis from a first axial end surface to a second axial end surface and wherein the interference fit extends up to about 10% or less of the entire length of the housing from each axial end surface.
A subassembly for a rotary electric machine having stacked laminations forming a stator core, comprising:
- a housing forming an interference fit with a series of the stacked laminations;
- an end cap having an interference fit with an end of the housing for locating the housing;
- and
- fasteners extending through the end cap for applying a compressive force to the stacked laminations for transferring torque between the end cap and the housing, the fasteners being positioned radially inward of the housing.
Dependencies are inferred from the claim text.