A rotation driving mechanism of an air supply apparatus, an air supply apparatus, and a household appliance. The rotation driving mechanism of the air supply apparatus comprises: a fixed bracket; a rotary bracket, and the rotary bracket is sleeved on the fixed bracket and may rotate with respect to the fixed bracket; and a driving member, and the driving member is provided on the fixed bracket and used for driving the rotary bracket to rotate. Therefore, compared with the prior art, by means of the coordination of the fixed bracket, the rotary bracket, and the driving member, the size of the rotation driving mechanism can be reduced; after the rotation driving mechanism is mounted on the air supply apparatus, the air supply apparatus can have a better appearance.

A rotatable humidification atomizer comprises a base, on which a water tank is arranged. A downward water outlet is arranged at the bottom of the water tank, and an atomizer is fixedly arranged at the bottom. A control component is arranged in the middle of the base, and the atomizer is electrically coupled with the control component. The humidification atomizer can be rotated by arranging a rotating component between the base and the water tank. In use, the water tank cover needs to be removed as a whole when filling and changing water. The water tank on the base can be kept stationary, so that it is easy to use; the humidification atomizer sprays atomized water upward. Due to the vertical integrated design, the humidification atomizer is small and compact.

An air cleaner includes a fan that is configured to suck air in an axial direction and discharge air between the axial direction and a radial direction. The air cleaner further includes a fan motor that is configured to rotate the fan. The air cleaner further includes an air guide unit that includes a cylindrical outer wall and an inner wall that is located in a center portion of the outer wall and that defines a space that is configured to receive the fan motor. The air guide unit defines an annular air flow path that is configured to receive air discharged by the fan and that is defined by an inner circumferential surface of the outer wall and an outer circumferential surface of the inner wall. The air guide unit further includes a plurality of guide ribs. The air guide unit further includes a plurality of flow guide protrusions.

A convertible ducted fan engine and mounting system. The convertible ducted fan engine has a shroud encircling a mechanical fan. The convertible ducted fan engine includes a fluid-propulsion configuration in which the mechanical fan rotates freely with respect to the shroud to produce thrust through fluid flow, and a drive-wheel configuration in which the shroud rotates about the rotational axis. The mounting system includes at least one gimbal ring and may include a circular track system thereby enabling the convertible engine to be oriented in any direction.

The present application discloses an oscillation device and a fan, the oscillation device comprises a fixation seat provided with a through hole; a transmission shaft rotatably mounted in the through hole; and a motor mounted at the fixation seat, an output shaft of the motor being connected to an end of the transmission shaft, an axis of the output shaft of the motor being collinear with an axis of the transmission shaft, and the motor being configured to drive the transmission shaft to rotate.

A hinge assembly includes a rotation shaft, a first connection member provided at the rotation shaft, a second connection member provided at the rotation shaft, located at one side of the first connection member along an axial direction of the rotation shaft, and configured to rotate around the rotation shaft, and an adjustment member connected to the rotation shaft and configured to press the second connection member along the axial direction of the rotation shaft.

A fan includes a column assembly, a fan head, a hinge assembly, and a support structure connected to the fan head and the column assembly. The hinge assembly includes a first connection member and a second connection member which are hinge-connected to each other. The first connection member is connected to the column assembly, and the second connection member is connected to the fan head. The fan head is configured to rotate around the support structure, and an axis around which the fan head rotates relative to the support structure coincides with an axis around which the first connection member and the second connection member rotate relative to each other.

A dual window fan having a rectangular body adapted to engage a window, two fan heads pivotably engaging the body independently of each other about a vertical pivot axis from aiming directly outwardly normal to the body to aiming inwardly through a pivot angle of at least 225 angular degrees.

A method of a fan system directing an air stream at a target can include receiving, with a controller, a first image from an image capture sensor and analyzing the first image from the image capture sensor to determine a first location of the target. The method can also include receiving a second image from the image capture sensor and analyzing the second image from the image capture sensor to determine a second location of the target. The method can also include comparing the first location of the target and the second location of the target and sending a signal to a first motor to rotate a housing about a first axis respective to a base to direct an air stream exiting an outlet of a channel at the target.

The embodiments of the present disclosure provide a rotational electric fan including a fan head and a fan holder, wherein the fan head and the fan holder are connected through a rotational structure. The rotational structure includes: a fitting structure, including a circular cover fitting groove disposed on the fan head and a circular fitting head disposed on the fan holder and cooperating with the circular cover fitting groove, so as to fit the fan head and the fan holder together; a circular spacer, fixed on a surface of the circular fitting head facing toward the fan head and being in interference contact with a surface of the circular cover fitting groove facing toward the circular fitting head, so as to support rotational movement of the fan head relative to the fan holder.