E-machine system with stator member having isolator barrier members and end fluid deflector member

A turbomachine comprising:

• a housing assembly;
• a rotating group supported for rotation about an axis within the housing assembly;
• an e-machine that is operable as at least one of an electric motor and an electric generator, the e-machine housed within the housing assembly and operatively coupled to the rotating group, the e-machine configured to attach within a fluid system that provides a fluid coolant thereto;
• a stator member of the e-machine that includes:
• a bobbin formed as a one piece member with a plurality of winding supports arranged about an axis, the bobbin including a first axial end and a second axial end spaced apart along the axis, the bobbin further including an inner radial portion and an outer radial portion that extend circumferentially about the axis and are joined by the plurality of winding supports, the plurality of winding supports including a first winding support, the first winding support including an inner radial portion, an outer radial portion, and an intermediate portion defined radially between the inner radial portion and the outer radial portion with respect to the axis;
• a first isolator barrier member supported on a first angular side of the first winding support and a second isolator barrier member supported on a second angular side of the first winding support, the first and second isolator barrier members extending radially between the inner radial portion and the outer radial portion and extending substantially between the first axial end and the second axial end;
• the first isolator barrier member, the inner radial portion, the second isolator barrier member, and the outer radial portion cooperatively defining an axial flow channel extending through the bobbin between the first axial end and the second axial end and circumferentially bounded by the first and second isolator barrier members;
• and
• an end fluid deflector member that is supported proximate the first axial end to define a redirection surface facing an interior of the bobbin, the bobbin and the rotating group cooperatively defining an inner segment of a coolant flow path that extends substantially axially along the axis in a first direction toward the redirection surface, the redirection surface configured to redirect flow at the first axial end from the inner segment radially outward and into the axial flow channel and then substantially from a first direction along the axis toward a second direction along the axis, the first direction being opposite the second direction.

A method of manufacturing a turbomachine comprising:

• providing a housing
• providing a rotating group;
• providing an e-machine including providing a stator bobbin;
• supporting the rotating group for rotation about an axis within the housing;
• housing the e-machine within the housing and operably coupling the e-machine to the rotating group to be operable as at least one of an electric motor and an electric generator;
• the stator bobbin of the e-machine including:
• a bobbin formed as a one-piece member with a plurality of winding supports arranged about an axis, the bobbin including a first axial end and a second axial end spaced apart along the axis, the bobbin further including an inner radial portion and an outer radial portion that extend circumferentially about the axis and are joined by the plurality of winding supports, the plurality of winding supports including a first winding support, the first winding support including an inner radial portion, an outer radial portion, and an intermediate portion defined radially between the inner radial portion and the outer radial portion with respect to the axis;
• a first isolator barrier member supported on a first angular side of the first winding support and a second isolator barrier member supported on a second angular side of the first winding support, the first and second isolator barrier members extending radially between the inner radial portion and the outer radial portion and extending substantially between the first axial end and the second axial end;
• the first isolator barrier member, the inner radial portion, the second isolator barrier member, and the outer radial portion cooperatively defining an axial flow channel extending through the bobbin between the first axial end and the second axial end and circumferentially bounded by the first and second isolator barrier members;
• and
• an end fluid deflector member that is supported proximate the first axial end to define a redirection surface of the axial flow channel, the redirection surface facing an interior of the bobbin, the bobbin and rotating group cooperatively defining an inner segment of a coolant flow path that extends substantially axially along the axis in a first direction toward the redirection surface the redirection surface being configured to redirect flow at the first axial end from the inner segment radially outward and into the axial flow channel and then substantially from a first direction along the axis toward a second direction along the axis, the first direction being opposite the second direction.