A centrifugal blower includes a centrifugal fan and a separation cylinder. The centrifugal fan has a separation plate. The separation cylinder is disposed inward of the blades in the radial direction of the centrifugal fan. The separation plate has an inner end surface extending from the one side to the other side in the axial direction at a position of an inner end in the radial direction. The separation cylinder has a separation cylinder end surface extending from the one side to the other side in the axial direction at a position of an end on the other side in the axial direction. A height of one of the separation cylinder end surface and the inner end surface in the axial direction is larger than a height of the other of the separation cylinder end surface and the inner end surface in the axial direction.

An air pump is provided, the air pump comprising: an air pump housing; a first check valve; a main air pump; an airway switching device; an air-supplementing pump; an air pressure sensor; and a control device. The control device is electrically connected to the main air pump, the airway switching device, the air-supplementing pump, and the air pressure sensor, and is configured to: send a main air pump stop signal based on the air pressure sensor detecting a threshold pressure in the inflatable body during operation of the main air pump; and send an air-supplementing pump operation signal based on the air pressure sensor detecting a pressure lower than the threshold pressure in the inflatable body when the main air pump is not in operation.

A neck fan includes an arc-shaped shell configured to hang around user's neck and at least four fan assemblies arranged in the shell. The shell includes a first part and a second part. Each of the first part and the second part defines an accommodating space, air inlets and air outlets communicated with the accommodating space, at least one partition is arranged in the accommodating space and configured to divide the accommodating space into at least two accommodating parts arranged along an extension direction of the shell. Each of the fan assemblies is arranged in one of the at least two accommodating parts and is configured to direct air into the one of the at least two accommodating parts through corresponding air inlets and to direct air out of the one of the at least two accommodating parts through corresponding air outlets.

The aspects of the disclosed embodiments are directed to a fan for displacing a fluid, which fan includes a rotor rotating around its axis of rotation and surfaces, such as blades, forming a flow when the rotor rotates. The rotor is arranged to displace fluid simultaneously with at least two different flows (F1, F2).

A component carrier includes a baseboard, two sidewalls, and an ejector. The two sidewalls extend from opposite sides of the baseboard. The ejector includes a side plate, a handle, and a tab. The side plate is positioned in proximity to a first sidewall of the two sidewalls of the component carrier. The handle extends from a first end of the side plate in a first direction that is generally perpendicular to the side plate. The tab is positioned in proximity to the baseboard, and extends from a second opposing end of the side plate in a second direction that is generally perpendicular to the side plate and opposite to the first direction, the tab coupled to a first connector extending from the baseboard. The baseboard includes a first opening such that a portion of the tab of the ejector is configured to directly contact the electronic component therethrough.

A fluid heat exchanger with pump, adapted to drive a fluid for heat transfer, comprises a heat conduction unit, a diversion unit, and a housing unit. The heat conduction unit includes a heat conductor. The diversion unit includes a cover and a diversion plate. A cooling chamber is defined by the cover and the heat conductor. The cover is provided with a fluid stopper. The diversion plate is disposed in the cooling chamber, and one end of the diversion plate abuts against the fluid stopper, so that the cooling chamber is divided into an upper passage and a lower passage. The housing unit includes a housing and a pump module. The fluid in the housing is driven by the pump module to flow through the upper passage to the lower passage, and then the fluid returns to the housing to carry the heat from the heat conductor.

Provided are a fan control device and a setting method capable of appropriately controlling fans even if a fan configuration pattern is modified. A fan control device is provided with: an acquiring unit for acquiring the quantity and types of fans connected to input/output ports; a storage unit for storing a plurality of fan configuration patterns indicating the quantity and types of the fans; a specifying unit for specifying a fan configuration pattern matching the quantity and types of fans acquired by the acquiring unit, from among the plurality of fan configuration patterns stored in the storage unit; and a setting unit for setting, in the fans connected to the input/output ports, a rotational speed threshold for use when the fans are rotated, associated with the fan configuration pattern specified by the specifying unit.

Disclosed are a fan apparatus and an air conditioner outdoor unit. The fan apparatus includes: a first wind wheel and a second wind wheel, axially arranged in an interval. A spacing S1 between the first wind wheel and the second wind wheel satisfies S1<(H1+H2)/2, where H1 is a length of the first wind wheel along the axial direction, and H2 is a length of the second wheel along the axial direction.

In one or more embodiments, an information handling system fan may include: a hub; multiple fan blades radially attached to the hub and configured to rotate perpendicularly to a longitudinal axis of the information handling system fan; an electric motor; a drive shaft parallel to the longitudinal axis of the information handling system fan that attaches the electric motor to the hub; and a housing that houses the hub, the multiple fan blades, and the electric motor. In one or more embodiments, the housing may have a concave portion perpendicular to the longitudinal axis of the information handling system fan, in which the housing may include a first vent in the concave portion of the housing to intake air as the multiple fan blades rotate and in which the housing may include a second vent configured to exhaust the air as the multiple fan blades rotate.

A blowing system includes: a first blowing unit including a first body that houses a first fan and includes a first air outlet for blowing-out wind from the first fan; a second blowing unit including a second body that houses a second fan, includes a second air outlet for blowing-out wind from the second fan, and has a shape that is in two-fold symmetry with the first body; and a first connection that rotatably-connects an edge on a back face-side of a first side face of the first body and an edge on a back face-side of a second side face of the second body so that an angle formed by the first and second bodies is variable. The first and second blowing units come into contact at three or more points, and the directions of respective rotation axes of the first and second fans cross at a predetermined angle.