Abstract: An electrical machine assembly including a housing, a shroud, and a terminal box coupled to the housing. The terminal box includes a base having an outer wall extending therefrom, wherein the outer wall includes a distal edge that is correspondingly shaped with the housing such that the outer wall engages with the housing and with the shroud to form a seal.

Abstract: An electric machine includes a housing having an air intake, an air outlet, and defining an air passage therein. The air passage includes a first channel extending from the air intake in a radial direction and a second channel extending in the radial direction to the outlet. The electric machine further includes a motor assembly positioned within the housing that includes a shaft that rotates about a rotational axis that is generally perpendicular to the radial direction. The electric machine further includes an electronics assembly within the housing interior and a heat sink positioned at least partially within the air passage and thermally connected to the electronics assembly. Operation of the motor assembly draws an ambient airflow into the air passage in the radial direction through the air intake, directs the airflow along the heat sink, and exhausts the airflow through the air outlet in the radial direction.

Abstract: A motor assembly having a rotational axis includes a motor housing comprising a plurality of cooling openings extending therethrough and defining a chamber. The motor assembly also includes a stator fixedly coupled to the motor housing and positioned within the chamber. A rotor is coupled to at least one of the motor housing and the stator, wherein the rotor is configured to rotate about the axis and is positioned within the chamber. The motor assembly includes a fan having a first inlet side on a first axial side of the fan and a second inlet side on a second, opposing, axial side of the fan. The fan is configured to draw cooling air in a first direction through the at least one cooling opening into the first inlet side, and the fan is also configured to draw cooling air in a second, opposite direction into the second inlet side.

Abstract: An electrical switch for an electric machine includes body, a stator fixedly secured to the body and a rotor. The actuator includes a first member securable to the rotor and rotatable with it. The actuator also includes a second member, a first electrically conductive member cooperates with the second member. The actuator also includes a second electrically conductive member. The second electrically conductive member is spaced from said first electrically conductive member when said first electrically conductive member is in the first axial position and electrically engaged with said first electrically conductive member when said first electrically conductive member is in the second axial position.

Abstract: An electric machine includes a housing having an air intake, an air outlet, and defining an air passage therein. The air passage includes a first channel extending from the air intake in a radial direction and a second channel extending in the radial direction to the outlet. The electric machine further includes a motor assembly positioned within the housing that includes a shaft that rotates about a rotational axis that is generally perpendicular to the radial direction. The electric machine further includes an electronics assembly within the housing interior and a heat sink positioned at least partially within the air passage and thermally connected to the electronics assembly. Operation of the motor assembly draws an ambient airflow into the air passage in the radial direction through the air intake, directs the airflow along the heat sink, and exhausts the airflow through the air outlet in the radial direction.

Abstract: An electrical switch for an electric machine includes body, a stator fixedly secured to the body and a rotor. The actuator includes a first member securable to the rotor and rotatable with it. The actuator also includes a second member, a first electrically conductive member cooperates with the second member. The actuator also includes a second electrically conductive member. The second electrically conductive member is spaced from said first electrically conductive member when said first electrically conductive member is in the first axial position and electrically engaged with said first electrically conductive member when said first electrically conductive member is in the second axial position.

Abstract: An electric machine assembly includes a housing having a first portion and a second portion. The electric machine assembly also includes a midframe coupled between the first and second portions such that the mid-frame and the first portion partially define a first compartment and such that the mid-frame and the second portion partially define a second compartment. A terminal box is coupled to the mid-frame and configured to house a first plurality of electrical components. A stator is positioned within the first compartment and a second plurality of electrical components positioned with the second compartment. The stator and the second plurality of electrical components are electrically coupled by a first plurality of wires extending through the mid-frame, and the first plurality of electrical components are electrically coupled to the second plurality of electrical components by a second plurality of wires extending through the second compartment and into the terminal box.

Abstract: An electric machine assembly includes a housing having a first plurality of housing openings and a second plurality of housing openings. The electric machine assembly also includes a terminal box removably coupled to the housing, wherein the terminal box includes a base having a first plurality of base openings and a second plurality of base openings. The base is symmetrical and reversible in orientation between a first orientation and a second orientation.

Abstract: An electrical machine assembly including a housing, a shroud, and a terminal box coupled to the housing. The terminal box includes a base having an outer wall extending therefrom, wherein the outer wall includes a distal edge that is correspondingly shaped with the housing such that the outer wall engages with the housing and with the shroud to form a seal.

Abstract: A rotor assembly for use with an electric machine assembly includes a plurality of magnets and a rotor frame having a pair of opposing end plates and a plurality of circumferentially spaced longitudinal members extending between the opposing end plates. The opposing end plates and the plurality of longitudinal members combine to define a plurality of openings that are each configured to receive a magnet of the plurality of magnets. At least one of the opposing end plates includes a plurality of fins extending therefrom in a direction opposite the longitudinal members.

Abstract: An electric machine assembly includes a shaft configured to rotate about an axis and an end frame coupled about the shaft such that the shaft rotates relative to the end frame. The end frame includes an end surface and a plurality of pins that extend axially from the end surface. The electric machine assembly also includes a fan coupled to the shaft such that rotation of the shaft causes rotation of the fan to facilitate cooling the plurality of pins.

Abstract: An electric machine assembly includes a housing defining an inner cavity, a rotatable shaft extending through the inner cavity, and at least one electrical component positioned within the cavity. The electric machine assembly also includes an internal fan coupled to the shaft and positioned within the inner cavity such that rotation of the fan provides a cooling airflow to the at least one electrical component.

Abstract: An electric machine assembly includes a housing defining an inner cavity and an electrical component positioned within the cavity. The electric machine assembly also includes a mid-frame positioned within the cavity and configured to separate the cavity into a first compartment and a second compartment. The mid-frame includes a guide structure for guiding a plurality of wires through the second compartment toward the electrical component.

Abstract: A motor assembly having a rotational axis includes a motor housing comprising a plurality of cooling openings extending therethrough and defining a chamber. The motor assembly also includes a stator fixedly coupled to the motor housing and positioned within the chamber. A rotor is coupled to at least one of the motor housing and the stator, wherein the rotor is configured to rotate about the axis and is positioned within the chamber. The motor assembly includes a fan having a first inlet side on a first axial side of the fan and a second inlet side on a second, opposing, axial side of the fan. The fan is configured to draw cooling air in a first direction through the at least one cooling opening into the first inlet side, and the fan is also configured to draw cooling air in a second, opposite direction into the second inlet side.

Abstract: An electrical switch for an electric machine includes body, a stator fixedly secured to the body and a rotor. The actuator includes a first member securable to the rotor and rotatable with it. The actuator also includes a second member, a first electrically conductive member cooperates with the second member. The actuator also includes a second electrically conductive member. The second electrically conductive member is spaced from said first electrically conductive member when said first electrically conductive member is in the first axial position and electrically engaged with said first electrically conductive member when said first electrically conductive member is in the second axial position.