Abstract: A blower assembly for advancing the flow of air in an air flow device at a selected one of a plurality of air flow rates. The blower assembly includes a blower housing defining a body thereof and a wall of the blower housing moveably secured to the body, a blower wheel rotatably mounted to the blower housing and a motor for rotating the blower wheel at a selected one of a plurality of rotational speeds. The blower assembly further includes a motion device secured to the body and to the wall. The motion device moves the wall relative to the body to a selected one of a plurality of distinct wall positions. The motor rotates the blower wheel at a selected one of a plurality of rotational speeds. A controller calculates an optimum wall position and rotational speed to provide for minimal energy usage rate.

Abstract: A blower assembly for advancing the flow of air in an air flow device at a selected one of a plurality of air flow rates is provided. The blower assembly includes a blower housing defining a body thereof and a wall of the blower housing moveably secured to the body, a blower wheel rotatably mounted to the blower housing and a motor for rotating the blower wheel at a selected one of a plurality of rotational speeds. The blower assembly further includes a motion device secured to the body and to the wall. The motion device moves the wall relative to the body to a selected one of a plurality of distinct wall positions. The motor rotates the blower wheel at a selected one of a plurality of rotational speeds. A controller calculates optimum wall position and rotational speed to provide for minimal energy usage rate.

Abstract: 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.

Abstract: 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 barrier for at least partially containing the potting material.

Abstract: 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.

Abstract: An electric motor includes a motor enclosure, a motor-bearing assembly, a motor control unit, a mid shield, and a bearing. The motor-bearing assembly is configured for placement within the motor enclosure and has a shaft extending therefrom. A portion of the motor control unit is configured for placement within the motor enclosure. The mid shield is configured for placement within the motor enclosure between the motor control unit and the motor-bearing assembly and further configured to engage the shaft. The bearing is configured to seat within the mid shield and provide at least a portion of the engagement between the shaft and the mid shield.

Abstract: A motor is described that includes a motor enclosure, a motor winding assembly, a motor control unit, and a mid shield. The motor enclosure includes a plurality of protrusions into the motor enclosure in a substantially configuration around its perimeter and the motor winding assembly is configured for placement within the motor enclosure. A portion of the motor control unit is configured for placement within the motor enclosure and the mid shield is configured for placement within the motor enclosure between the motor control unit and the motor winding assembly where it engages the protrusions upon insertion into the enclosure.

Abstract: A method for reducing a length of a motor is described. The method includes engaging a motor enclosure at a first end with a motor winding assembly, inserting a mid shield into the motor enclosure from a second end of the enclosure, and fastening the mid shield to the motor winding assembly. The method further includes engaging the second end of the motor enclosure with a motor control unit, at least a portion of the motor control unit within the motor enclosure, and fastening the motor control unit to the mid shield.

Abstract: A motor is described that includes a motor enclosure, a mid shield, and a motor control unit having a chassis and a plurality of components mounted on the chassis. The motor enclosure includes a plurality of protrusions extending into the motor enclosure. The mid shield is configured for placement within the motor enclosure and configured to engage the protrusions. The mid shield is configured with a plurality of open spaces. The chassis of the motor control unit is configured to engage an end of the motor enclosure and the motor control unit is configured such that at least a portion of the components extend into the motor enclosure and the spaces in the mid shield.

Abstract: A motor is described that includes a motor enclosure, a motor-bearing assembly, a motor control unit, and a mid shield. The motor-bearing assembly is configured for placement within the motor enclosure, and a portion of the motor control unit is configured for placement within the motor enclosure. The mid shield is configured for placement within the motor enclosure between the motor control unit and the motor-bearing assembly. The mid shield is further configured to allow removal of the motor control unit without disturbance of the motor-bearing assembly.

Abstract: A connector assembly configured to engage a motor connector having a plurality of contacts is described. The connector assembly includes a plurality of receptacle terminals and first and second housing portions each having channels formed therein for insertion of the receptacle. The channels include an end further including a slot formed therein where the channels are configured to engage respective sides of the receptacle terminals along their longitudinal axis. The slots define a rectangular opening for insertion of a respective tab terminal into each respective receptacle terminal. Each receptacle terminal includes a wire insulation engaging segment, a wire engaging segment, and a receptacle portion.

Abstract: An electrical isolation circuit that sets a voltage level for programming a product is contained in a stand-alone module. The electrical circuit includes a first input terminal connected to a first optocoupler, which provides a first level of isolation, a transformer, which provides a second level of isolation, and a second optocoupler, which provides a third level of isolation. The circuit outputs a signal to a level setting circuit prior to outputting the signal. An advantage of the module is it interfaces with a plurality of programming boxes, so new modules do not have to be created.