Abstract: A cooling fan having motor and an impeller. The cooling fan may comprise a three-phase DC motor. The impeller may comprise a hub to house the three-phase DC motor and a plurality of blades extending from the hub. Each blade may have a height that is at least 25 % of the impeller diameter.

Abstract: In accordance with at least some embodiments, a computer system includes an enclosure (202) configured to hold at least one resource unit (204). The computer system also comprises a plurality of mixed-flow ducted fans units (400) selectively attached to the enclosure (202). Each mixed-flow ducted fan unit (400) comprises a duct (102) having an intake diameter, a bellmouth diameter, and an exhaust diameter. The bellmouth diameter is less than the intake diameter and the exhaust diameter.

Abstract: Embodiments of the present invention are directed to a blade server and blade server components. Specifically, one embodiment is directed to a server comprising a server chassis, a system board coupled to the server chassis, the system board comprising a first electrical connector, and a bezel assembly coupled to the server chassis and the system board, the bezel assembly comprising a printed circuit assembly comprising a second electrical connector communicatively mated to the first electrical connector.

Abstract: In accordance with at least some embodiments, a computer system includes an enclosure (202) configured to hold at least one resource unit (204). The computer system also comprises a plurality of mixed-flow ducted fans units (400) selectively attached to the enclosure (202). Each mixed-flow ducted fan unit (400) comprises a duct (102) having an intake diameter, a bellmouth diameter, and an exhaust diameter. The bellmouth diameter is less than the intake diameter and the exhaust diameter.

Abstract: A blade server for increasing the amount of processing capacity per rack bay is disclosed. The blade server includes a housing having a top portion and a bottom portion, a first printed circuit assembly adjacent to the top portion of the housing, a second printed circuit assembly positioned in the bottom portion of the housing opposite the first printed circuit assembly, and a connector attaching the first and second printed circuit assembly to one another.

Abstract: A latch for holding a rack mounted device into a rack is disclosed. The latch is formed from an essentially flat plate. The latch has an attachment section used to attach the latch to the rack mounted device. A serpentine section is formed adjacent to the attachment section. A beam section extends at an angle from the serpentine section. A head is attached to the end of the beam. The head has a catch that extends from the edge of the beam by a distance X, where X is in the plane of the flat plate. The serpentine section allows the head to be deflected by distance X where the deflection is in the plane of the flat plate.

Abstract: A fan module latching device includes a bezel, a base adapted for enclosing a fan, and a handle assembly rotatably retained between the bezel and the base. The handle assembly has a rearwardly depending cam member and a frontwardly extending handle for actuating the handle assembly between a neutral position and an actuated position. A module latch, attached to the base, includes a cam follower and at least one latching tab, the cam follower engaging the cam member such that when the handle assembly is in the neutral position the latching tab is extended outwardly with respect to the base and when the handle assembly is in the actuated position the latching tab is retracted inwardly with respect to the base.

Abstract: In accordance with at least some embodiments, a single rotor ducted fan is disclosed. The single rotor ducted fan comprises a duct having an intake diameter and an impeller having a hub with blades that extend radially from the hub. The blades have a maximum tip diameter. The bellmouth diameter is less than the maximum tip diameter.

Abstract: An electronic module includes an enclosure having a front face and a rear face. An electronic circuit board is positioned in the enclosure and a processor is mounted to the electronic circuit board. A data storage device is positioned in the enclosure such that the processor is positioned between the data storage device and the electronic circuit board.

Abstract: A system for cooling an electronics enclosure comprises a plurality of fan modules. Each fan module comprises, a motor for driving a fan at a variable rotational speed, a microcontroller for controlling the rotational speed of the motor, an interface for electronically communicating between the microcontroller and an infrastructure controller external to the fan module, the infrastructure controller providing a target speed to the microcontroller, a memory for storing data including speed avoidance zones, wherein when the target speed falls within one of the speed avoidance zones, the microcontroller controls the motor speed to be slightly outside the speed avoidance zone.

Abstract: A heat sink is disclosed. The heat sink comprises a base (102, 402) with at least one vapor chamber (208, 408) containing a fluid with a first activation point. The base has at least one vapor chamber (212, 412) containing a fluid with a second activation point. The first activation point is different than the second activation point.

Abstract: In accordance with at least some embodiments, a single rotor ducted fan is disclosed. The single rotor ducted fan comprises a duct having an intake diameter and an impeller having a hub with blades that extend radially from the hub. The blades have a maximum tip diameter. The bellmouth diameter is less than the maximum tip diameter.

Abstract: A cooling fan includes an outer housing. A motor support is fixed to the outer housing and a motor is mounted to the motor support. A hub is coupled to the motor and, with the motor support, forms a motor enclosure that substantially surrounds the motor. Multiple blades extend radially from the hub and are arranged so as to generate a flow of air around the motor enclosure when the blades are rotated. The cooling fan also includes a motor cooler including a flow path through the motor enclosure, wherein the flow path has a first opening and a second opening, wherein the second opening is disposed within an area of lowered downstream pressure so as to develop a differential pressure between the first and second openings and generate a flow of air through the motor enclosure as the motor operates.

Abstract: Embodiments of a flow control system and method are disclosed. An exemplary method may include causing air to move along an air flow path through at least one inlet formed in the housing over at least a portion of an electronic device, causing the air to move adjacent one or more component of the electronic device, and causing the air to move through at least one outlet formed in the housing. The method may also include adjusting at least one baffle in the air flow path between different positions based on configuration and power requirements of the electronic device to control the air flow through the housing along the air flow path.

Abstract: An apparatus comprises a moving, continuously cleaning filter that removes contaminants from air as the air enters an equipment rack and discharges the contaminants into the air as the air exits the equipment rack.

Abstract: A blade server for increasing the amount of processing capacity per rack bay is disclosed. The blade server includes a housing having a top portion and a bottom portion, a first printed circuit assembly adjacent to the top portion of the housing, a second printed circuit assembly positioned in the bottom portion of the housing opposite the first printed circuit assembly, and a connector attaching the first and second printed circuit assembly to one another.

Abstract: The described embodiments relate to fan units. One exemplary fan unit includes a housing supporting a motor. The fan unit also includes an impeller coupled to the motor and configured to be rotated by the motor. The impeller comprises at least a first structure configured to move air past the housing and at least one second different structure configured to force air into the housing.

Abstract: A baffle manages airflow through optionally mounted electronic components by using flexible members formed to extend to empty connectors and flex away from the connectors to accommodate electronic components mounted to the connectors.

Abstract: An air backflow prevention member includes a frame assembly including a plurality of vanes and a plurality of stops. The plurality of vanes are rotatable between an open position, wherein the plurality of vanes are oriented oblique to a direction of airflow and in contact with the plurality of stops, and a closed position, wherein the plurality of vanes are oriented perpendicular to the direction of airflow.

Abstract: A computer system is provided that includes a chassis, a system board coupled to the chassis, and a first connector extending from the system board at a first height and configured to receive a first printed circuit board, wherein the first printed circuit board is configured to be parallel to the system board when received by the first connector, and a second connector extending from the system board at a second height and configured to receive a second printed circuit board, wherein the second printed circuit board is configured to be parallel to the system board when received by the second connector. Other computer systems are provided that include a first mezzanine card and a second mezzanine card or multiple connectors and a plurality of printed circuit boards.