Cooling system for a stator assembly

A motor assembly comprising:

• a stator assembly having:
• a generally annular stator core including a plurality of radially inwardly extending stator teeth;
• a stator wire wound around each of said plurality of stator teeth to form a plurality of stator coils;
• wherein each of said plurality of stator coils are spaced apart to at least partially define a plurality of generally axially extending cooling channels through which a cooling medium flows;
• wherein said plurality of stator teeth each include a respective flanged end portion each adapted to retain an axially extending strip member and wherein said strip member at least partially defines said cooling channel;
• a first and second end ring disposed on opposite axial ends of said stator assembly;
• wherein said first end ring defines a first chamber operable to communicate said cooling medium to each of said plurality of cooling channels;
• and
• wherein said second end ring defines a second chamber operable to receive said cooling medium from each of said plurality of cooling channels;
• and
• wherein said cooling medium operates to cool said plurality of stator coils.

An electromechanical hybrid transmission comprising:

• a rotor assembly;
• a stator assembly disposed coaxially with respect to said rotor assembly, the stator assembly having:
• a generally annular stator core including a plurality of radially inwardly extending stator teeth;
• a stator wire wound around each of said plurality of stator teeth to form a plurality of stator coils;
• wherein each of said plurality of stator coils are spaced apart to at least partially define a plurality of generally axially extending cooling channels through which a cooling medium flows;
• wherein said plurality of stator teeth each include a respective flanged end portion each adapted to retain an axially extending strip member and wherein said strip member at least partially defines said cooling channel;
• a first and second end ring disposed on opposite axial ends of said stator assembly;
• wherein said first end ring defines a first chamber operable to communicate said cooling medium to each of said plurality of cooling channels;
• and
• wherein said second end ring defines a second chamber operable to receive said cooling medium from each of said plurality of cooling channels;
• and
• wherein said cooling medium operates to cool said plurality of stator coils.