An electric direct-drive motor for an underwater vehicle comprises a fully-encapsulated stator and a rotor. The fully-encapsulated stator may comprise a stator encapsulated in a thermally-conductive and electrically-isolative encapsulant. The encapsulant may be configured to align the rotor within the fully-encapsulated stator. The fully-encapsulated stator may have an internal surface to operate as a bearing surface for the rotor. A radial gap between the rotor and the internal surface may provide a fluid bearing between the rotor and stator. The internal surface of the fully-encapsulated stator operates as a bearing surface for the rotor and the radial gap provides a fluid bearing when operating in a flooded assembly. This allows the electric direct-drive motor to be directly exposed to seawater and the high external water pressure eliminating any need for a pressure compensated housing and dynamic seals and bearings.

The invention relates to a process which is intended for producing an arrangement comprising a stator (STT) and a housing (OCS) for a dynamoelectric machine and in which a number of stator laminations (SMS) are put together to form a laminated core (SMP). The production process comprises:arranging the stator laminations (SMS) in a stack along an axial direction to form a laminated core (SMP) and-applying a composite polymer (GPF) to at least the radial outer side of the laminated core (SMP) such that one or more applied layers of the filled composite polymer (GPF) at least partially form(s) the housing (OCS). A composite polymer is a polymer in the form of a matrix in which particles are embedded. In addition, the invention also relates to an arrangement comprising a stator (STT) and a housing (OCS) of a dynamoelectric machine and also the use thereof for a process for producing or processing foodstuffs, pharmaceutical products or cosmetic products.

The invention relates to a process which is intended for producing an arrangement comprising a stator (STT) and a housing (OCS) for a dynamoelectric machine and in which a number of stator laminations (SMS) are put together to form a laminated core (SMP). The production process comprises:arranging the stator laminations (SMS) in a stack along an axial direction to form a laminated core (SMP) and-applying a composite polymer (GPF) to at least the radial outer side of the laminated core (SMP) such that one or more applied layers of the filled composite polymer (GPF) at least partially form(s) the housing (OCS). A composite polymer is a polymer in the form of a matrix in which particles are embedded. In addition, the invention also relates to an arrangement comprising a stator (STT) and a housing (OCS) of a dynamoelectric machine and also the use thereof for a process for producing or processing foodstuffs, pharmaceutical products or cosmetic products.

A coil end cooling structure includes an insulator, and first and second covers. The insulator has first and second protrusions provided on respective end surfaces of a stator core of a stator in the axial direction, and a link to link the protrusions. The first and second covers are secured to the insulator and cover the coil end on the respective end surfaces of the stator. The link is provided along an inner wall of the slot. The first and second covers are provided with a supply port and a discharge port for a coolant that cools a stator coil provided in a slot of the stator core. The supply port is provided on a lower side in a direction of gravity, and the discharge port is provided on an upper side in the direction of gravity.

A coil end cooling structure includes an insulator, and first and second covers. The insulator has first and second protrusions provided on respective end surfaces of a stator core of a stator in the axial direction, and a link to link the protrusions. The first and second covers are secured to the insulator and cover the coil end on the respective end surfaces of the stator. The link is provided along an inner wall of the slot. The first and second covers are provided with a supply port and a discharge port for a coolant that cools a stator coil provided in a slot of the stator core. The supply port is provided on a lower side in a direction of gravity, and the discharge port is provided on an upper side in the direction of gravity.

A motor includes a heatsink, an electronics board, an interchangeable heat-generating component mounted to the electronics board, and an interchangeable spacing insert at least in part disposed between the electronics board and the interchangeable heat-generating component. The electronics board presents a board surface facing the heatsink. The interchangeable heat-generating component presents a heatsink-facing surface and a board-facing surface. The board-facing surface is spaced from the board surface by an offset distance. The interchangeable spacing insert engages each of the board surface and the board-facing surface to maintain the offset distance therebetween and position the heatsink-facing surface relative to the heat sink. The interchangeable spacing insert is selected from a group of spacing inserts having various thicknesses, with the spacing insert thickness corresponding to the thickness of the interchangeable heat-generating component and facilitating positioning of the interchangeable heat-generating component relative to the heatsink.

A motor includes a heatsink, an electronics board, an interchangeable heat-generating component mounted to the electronics board, and an interchangeable spacing insert at least in part disposed between the electronics board and the interchangeable heat-generating component. The electronics board presents a board surface facing the heatsink. The interchangeable heat-generating component presents a heatsink-facing surface and a board-facing surface. The board-facing surface is spaced from the board surface by an offset distance. The interchangeable spacing insert engages each of the board surface and the board-facing surface to maintain the offset distance therebetween and position the heatsink-facing surface relative to the heat sink. The interchangeable spacing insert is selected from a group of spacing inserts having various thicknesses, with the spacing insert thickness corresponding to the thickness of the interchangeable heat-generating component and facilitating positioning of the interchangeable heat-generating component relative to the heatsink.