摘要:
According to an embodiment of the invention, an electric machine is provided. The machine includes a support structure, a stator secured to the support structure, and a rotor rotatably secured to the support structure. The machine also includes a circuit board positioned at least partially within the support structure. The circuit board is adapted for controlling an electromagnetic field produced by the stator. The machine also includes a potting material in contact with a first surface of the circuit board and a harrier for at least partially containing the potting material.
摘要:
A pumping device for pumping a fluid is provided. The pumping device includes a pump and a power housing. At least a portion of the pump is positioned within the power housing. The pumping device also includes a first motor and a second motor. The first motor is operably connected to the pump and adapted to provide energy to the pump. At least a portion of the first motor is positioned within the power housing. The second motor is operably connected to the pump and adapted to provide energy to the pump. At least a portion of the second motor is positioned within the power housing.
摘要:
In one embodiment, a permanent magnet rotor is provided. The permanent magnet rotor includes a substantially cylindrical rotor core including an outer edge, an inner edge, and opposed first and second ends. The rotor further includes a first wall and a second wall defining at least one radial aperture extending radially through the rotor core. The rotor further includes at least one permanent magnet positioned within the at least one radial aperture. A first indentation is formed in one of the at least one permanent magnet and the first wall, the first indentation defining a first space between the at least one permanent magnet and the radial aperture first wall. The rotor further includes a first material positioned within the first space, the material configured to substantially prevent movement of the permanent magnet relative to the at least one radial aperture.
摘要:
A centrifugal fan is described. The fan uses a blade that is tapered across the span of the blade. The taper can be larger towards the end opposite of the inlet or larger at the inlet. The blade may be backwardly inclined and/or curved. The fan may also include a turning vane.
摘要:
An electric machine is provided. The electric machine includes a rotor and a stator. The stator includes a plurality of teeth and a plurality of windings. Each of the plurality of windings is positioned around at least one of the plurality of teeth. The electric machine further includes a leakage current shielding system. The leakage current shielding system includes a plurality of leakage current shields. Each of the current shields includes a body portion thereof which is positioned between the plurality of teeth and the plurality of windings. Each of the leakage current shields also includes a connecting portion that extends from the body portion. The leakage current shielding system also includes a plurality of connectors. Each of the plurality of connectors is adapted for receiving the connection portion of the leakage current shield. The leakage current shielding system also includes a connecting ring for securing the plurality of connectors.
摘要:
According to an embodiment of the invention, an electric machine for use in an environment having moisture is provided. The machine includes a housing that has an inner surface defining a cavity in the housing. The housing defines a leak path exit adapted to remove moisture accumulating within the housing away from the housing. The electric machine further includes a stator secured to the housing and a rotor that is rotatably secured to the housing. The electric machine further includes a moisture guide positioned at least partially within the cavity and adapted to guide at least some of the moisture toward the leak path exit.
摘要:
An electric machine is provided. The electric machine includes a rotor and a stator. The stator includes a plurality of teeth and a plurality of windings. Each of the plurality of windings is positioned around at least one of the plurality of teeth. The electric machine further includes a leakage current shielding system. The leakage current shielding system includes a plurality of leakage current shields. Each of the current shields includes a body portion thereof which is positioned between the plurality of teeth and the plurality of windings. Each of the leakage current shields also includes a connecting portion that extends from the body portion. The leakage current shielding system also includes a plurality of connectors. Each of the plurality of connectors is adapted for receiving the connection portion of the leakage current shield. The leakage current shielding system also includes a connecting ring for securing the plurality of connectors.
摘要:
A pump includes a housing including a first portion thereof defining opposed parallel spaced apart internal and exterior generally planar surfaces. The pump also includes a first impeller rotatably secured to the housing and positioned within the housing. The pump also includes a first axial flux motor connected to the first impeller and at least partially positioned within the housing. The first axial flux motor includes a first motor rotor fixedly secured to the first impeller. The first motor rotor has a generally planar surface thereof positioned adjacent to and parallel to the internal generally planar surface of the first portion of the housing. The first axial flux motor includes a first motor stator fixedly secured to the housing. The first motor stator has a generally planar surface thereof positioned adjacent to and parallel to the external generally planar surface of the first portion of the housing.
摘要:
A blower includes an impeller housing, an impeller rotatably secured to the housing and an electric motor. The motor has a motor housing with a central portion and a radially extending portion extending from the central portion, a venturi chamber adjacent the motor housing and opposed to the impeller housing, a stator secured to the central portion of the motor housing, a rotor rotatably secured to the central portion of the housing, and at least one heat generating electrical component secured to the radially extending portion of the motor housing. The impeller housing has a first air pressure therein and the motor housing has a second air pressure therein different that the first air pressure. The venturi housing and the motor housing define a passageway therebetween whereby the difference in air pressure generates air flow within the motor housing to cool the at least one heat generating electrical component.
摘要:
A pump includes a housing including a first portion thereof defining opposed parallel spaced apart internal and exterior generally planar surfaces. The pump also includes a first impeller rotatably secured to the housing and positioned within the housing. The pump also includes a first axial flux motor connected to the first impeller and at least partially positioned within the housing. The first axial flux motor includes a first motor rotor fixedly secured to the first impeller. The first motor rotor has a generally planar surface thereof positioned adjacent to and parallel to the internal generally planar surface of the first portion of the housing. The first axial flux motor includes a first motor stator fixedly secured to the housing. The first motor stator has a generally planar surface thereof positioned adjacent to and parallel to the external generally planar surface of the first portion of the housing.