A cooling system for electrical and electronic devices for hot swapping of a fan module without affecting cooling efficiency due to air backflow, preventing stalling of newly installed exhaust device due to reverse rotation. A check valve assembly having an inlet side frame member, an outlet side frame member, and one or more non-symmetrical valve flaps, each flap having a movable part and a fixed part. The outlet side frame allows the flaps to open under suction pressure on side of the outlet side frame, the inlet side frame disallows the flaps to open under suction pressure on side of the inlet side frame, allowing air to flow in one direction from inlet side frame side to outlet side frame side only. The check valve assembly can be independent of the exhaust device. The check valve assembly can prevent backflow of air during hot swapping of the exhaust device.

A system may include a reversible fan module that creates an airflow. The reversible fan module may include a set of attachment members, disposed on a face of the reversible fan module, that secure the reversible fan module a first orientation or a second orientation. The system may further include a chassis that include a divider that divides an interior region of the chassis into a front compartment and a rear compartment, a window, disposed on the divider, that allows airflow between the front compartment and the rear compartment, a first opening in the chassis that opens the front compartment to a first external region, a second opening in the chassis that opens the rear compartment to a second external region, and a bay that receives the reversible fan module.

Apparatuses and methods are provided for locking an air-moving assembly within a chassis when in operational state. The apparatus includes a locking louver assembly having a louver(s) and locking mechanism. The louver(s) is disposed at an air inlet or outlet of the air-moving assembly, and pivots between operational and quiesced orientations, dependent on presence or absence, respectively, of airflow through the air-moving assembly. The locking mechanism includes a keying element(s) affixed to the louver(s) to pivot therewith, which includes an elongated key(s) oriented in a first direction when the louver(s) is in operational orientation, and a second direction when in quiesced orientation. A key-receiving element(s) is associated with the chassis and includes a key opening(s) which receives and accommodates movement of the elongated key(s) between the first and second directions, and prevents removal of the air-moving assembly from the chassis with the key(s) oriented in the first direction.

A fan assembly includes a first guide, a second guide disposed in a direction vertical to the first guide such that the height of the first guide is adjustable, a slider disposed to move in a horizontal direction along the second guide, and a plurality of fan modules fastened to the slider, wherein each of the plurality of fan modules is fastened to the slider such that the height of the fan module is adjustable. Accordingly, the heights of the plurality of fan modules can be simultaneously adjusted, and the heights of some of the plurality of fan modules can be adjusted different from those of the other fan modules, so that the plurality of fan modules can be optimally installed.

A rack housing that holds a plurality of insertion components includes a plurality of insertion positions that hold the plurality of insertion components in a first area of the rack housing adjacent to a first housing side, a reduced pressure shaft in a second area of the rack housing adjacent to the first area, wherein between the reduced pressure shaft and the insertion components, first openings are provided to thereby remove air heated by the insertion components into the reduced pressure shaft, at least two second openings that suction off heated air from the reduced pressure shaft, and at least two non-return arrangements located in the reduced pressure shaft and correlated to the two second openings, the non-return arrangements preventing entry of air through the correlated second opening if no air is suctioned off through this second opening.

A method for controlling a venting system, in particular a venting system for cooling electronic control devices. The venting system has a first ventilator and a second ventilator. The first ventilator is controlled via a first channel and the second ventilator is controlled via a second channel. The two ventilators are mechanically independent of each other and controlled separately from each other.

According to an embodiment, a wearable device includes: a frame including at least one inlet, a printed circuit board disposed in the frame, an electronic component disposed on the printed circuit board, and a shield can, disposed on the printed circuit board, at least partially surrounding the electronic component. The wearable device includes a housing, coupled with the shield can. The wearable device includes an actuator facing the housing. The actuator is configured to move air received through the at least one inlet toward the housing.

An information processing system may comprise an electronic circuit comprising a primary circuit board of the information processing system, at least two power supplies providing electrical energy to the electronic circuit according to a power sharing ratio, with each power supply being cooled by a set of fans, and a controller, coupled to the set of power supplies and the set of fans. The controller detects a failure of one of the fans and adjusts the power sharing ratio from a default ratio to an adjusted ratio in response to detecting the failure of the one fan.

An electronic device includes a casing having sliding rails and fan modules disposed in the casing. Each fan module includes a fan having an air inlet, a baffle disposed at the air inlet, an electromagnet electrically connected to the fan, a ferromagnetic slider, and a first connector connected between the ferromagnetic slider and the baffle. The ferromagnetic slider is disposed on the corresponding sliding rail and is located between the electromagnet and the fan for moving between the electromagnet and the fan along the corresponding sliding rail. When the fan is functioning, the electromagnet attracts the ferromagnetic slider to drive the baffle to expose the air inlet. When the fan is powered off, the electromagnet does not attract the ferromagnetic slider, the first connector drives the ferromagnetic slider away from the electromagnet, and the baffle moves to shield the air inlet.

An information handling system may include an air mover array comprising one or more air movers, a debris detection system comprising an emitter configured to emit electromagnetic energy and a detector configured to detect an intensity of the electromagnetic energy incident at the detector and communicate a signal indicative of the intensity, and logic configured to receive the signal, compare the intensity indicated by the signal to a threshold level, and perform a remedial action if the intensity is below the threshold level.