A fan structure is provided with a fan, a fan support, a base, and a motor. The fan is provided with a rotational shaft rotatable about a rotational shaft, and a blade coupled to the rotational shaft to rotate about the rotational axis together with the rotational shaft. The fan support rotatably supports the rotational shaft. The base slidably supports the fan support so as to be slidable in the sliding direction. The motor includes a motor main body supported by a fan support opposite to the rotational shaft of the fan in the axial direction along the rotational axis, and a motor rotational shaft connected to the rotational shaft so as to rotate the rotational shaft.

The invention relates to a housing, wherein the housing has a cover disk having a cylindrical wall and a central receptacle with a hub for supporting a fan having a diagonal fan wheel, wherein a plurality of three-dimensionally curved air guide vanes (S) are arranged about the hub, characterized in that the air guide vanes (S) are materially connected to the cylindrical wall and as a result, the housing is produced in one working step.

The invention is about a foldable portable fan, which relates to the technical field of a fan, including an entity; the bottom of the entity is fixedly arranged with a connecting part, the connecting part is connected with a rotating part, one side of the rotating part is connected with a bolt, one end of the bolt is connected with a bolt column; the fan can conveniently connect the entity and the base together by setting a connecting part, a rotating part, a bolt and a bolt column, avoiding the use of screws, and the connection is very convenient; in addition, the entity can be folded between the base, which can save packaging materials, occupy less transportation space and save costs in logistics packaging; and the entity can be matched with different bases, thus providing higher selectivity and more flexible sale.

A vacuum pump includes a rotor provided with a plurality of rotor blades and a rotor cylinder portion, a driving portion, a bearing, stator blades, a thread groove stator that is disposed downstream of the stator blades and has an inner peripheral surface facing an outer peripheral surface of the rotor cylinder portion, and a heat insulating wall disposed downstream of the thread groove. The heat insulating wall includes a ring-shaped annular portion, and a substantially cylindrical wall portion extending from an inner portion of the annular portion in the radial direction to the upstream side and forming a flow path on the outer peripheral surface side. A first corner portion is formed between an upstream-side surface of the annular portion and the outer peripheral surface of the wall portion, the first corner portion being formed in an arc shape.

The present invention relates to a fruit or vegetable shaped fan for dispersing airborne eye irritants that are released during cutting fruits or vegetables. The fan includes a base that is wedge-shaped, an air inflow collimator that is fruit or vegetable shaped having an open front end, an internal frame that is configured to provide minimal abatement to airflow through the air inflow collimator, a motor mount that secures a motor, a fan blade that attaches to the motor, and a grill that attaches to the open front end of the air inflow collimator. The fan is configured to disperse airborne eye irritants away from a user's eyes. Airborne eye irritants are released when certain fruits and vegetables are chopped or otherwise cut. Such fruits and vegetables that can release airborne eye irritants when cut include onions, peppers, and certain other fruits and vegetables.

A fan frame body structure includes a first frame body. The first frame body has a first upper end, a first lower end, a first frame wall and a first main flow way. The first main flow way passes through the first frame body and is formed with a first main inlet and a first main outlet respectively at the first upper end and the first lower end. A first subsidiary flow way is disposed in the first frame wall. The first subsidiary flow way is in parallel the first main flow way. The first subsidiary outlet is positioned at the first upper end of the first frame body in flush with and in adjacency to the first main inlet.

A vacuum pump comprises: a rotor rotatable in a predetermined rotation direction; and a case housing the rotor; and a fixed component arranged facing an inner wall of the case. A clearance is formed between the inner wall of the case and the fixed component, and a groove allowing communication between the clearance and an exhaust path in the case is formed at either the inner wall of the case or the fixed component.

A heat dissipation fan of a magnetic suspension structure includes a fan frame, a fan blade assembly, a motor coil, a PCB, and an iron plate. The fan frame incudes a base portion and a circumferential wall portion. A central portion of the base portion is raised to form a central shaft. An assembling space is provided between an outer circumference of the central shaft and the circumferential wall portion. The motor coil is arranged in the assembling space and mounted to the central shaft and is electrically connected to the PCB to acquire electrical power. The fan blade assembly includes a hub portion including an axle core and blades extending radially from the hub portion. The fan blade assembly is rotatably mounted in the fan frame with the axle core mounted into a shaft formed in the central shaft. The rubber magnet encloses a circumference of the motor coil.

A fan includes a rotor having a shaft, a rotor core having an annular shape about a center axis of the shaft, and a permanent magnet fixed to the rotor core, the permanent magnet forming a magnet magnetic pole, a part of the rotor core forming a virtual magnetic pole, a stator surrounding the rotor from outside in a radial direction about the center axis, a rotating blade fixed to the shaft and formed of a nonmagnetic material, and a frame surrounding the stator from outside in the radial direction and formed of a nonmagnetic material.

A tower fan is provided that includes a fan body having a double cross fan blower centered in the body of the fan with a motor positioned between the fan blowers in the center of the fan body. The tower fan is capable of being oriented in both the horizontal and vertical directions. The fan body may further include first and second ends and at least two supports. At least a first support is coupled to the first end of the fan body and a second support is removably coupled to the least second end of the fan body. The first and second ends of the fan body each have a groove for each receiving at least one of the at least two support members where each groove extends entirely around the fan body. The at least two supports may both be removably coupled to the fan body or one of the at least two supports may be permanently coupled to the first end of the fan body.