This invention relates in general to a device for controlling the flow of a fluid. The device having a plurality of motor assemblies mounted at equidistant points around a mounting collar. An elongated annular outer casing surrounds and is spaced outwardly from the motor assemblies and defines with the motor assemblies an annular air passage. The outer casing having a central longitudinal axis, an open forward end for receiving ambient air and an open rear end for discharging air forced fluid. The device has a supporting structure on which the outer casing is mounted and a fluid flow assembly. A turntable is coupled to the supporting structure for rotation and an actuating assembly is used for raising and lowering the outer casing, wherein the actuating assembly is coupled between the supporting structure and outer surface of the outer casing.

A portable temperature regulation device includes a wearing body and first and second main bodies rotatably connected to the wearing body. The first and second main bodies each include a first housing in which a first receiving chamber is formed to receive a first fan therein. The first main body further includes a first air passage in communication with the first receiving chamber, a first air outlet communicating the first air passage and outside, an air inlet in communication with the first receiving chamber. The first and second main bodies are rotatably connected to the wearing body by a rotation structure. When it needs to fold for storage, the first and second main bodies can be rotated to a folded state, so as to reduce the size of the portable temperature regulation device for easy storage by a user.

An electric machine includes a frame and a plurality of electrical components including a rotor assembly and a stator assembly. The electric machine further includes an auxiliary blower mounting arrangement for cooling the electrical components and/or a modular exhaust assembly for noise attenuation, wherein the modular exhaust assembly further has one or more louvers allowing cooling fluid for cooling the electrical components to exit the electric machine.

A fan device includes a fan frame, an impeller, a plurality of cushion components, a plurality of first fasteners and a plurality of second fasteners. The fan frame includes a first frame body and a second frame body. The first frame body has a plurality of first engagement parts. The second frame body has a plurality of second engagement parts. The impeller is rotatably disposed on the fan frame. The cushion components are respectively located on different sides of the fan frame. The first fasteners are respectively disposed through the cushion components and engaged with the first engagement parts of the first frame body. The second fasteners are respectively disposed through the cushion components and engaged with the second engagement parts of the second frame body.

A fan device includes a fan frame, an impeller, a plurality of cushion components, a plurality of first fasteners and a plurality of second fasteners. The fan frame includes a first frame body and a second frame body. The first frame body has a plurality of first engagement parts. The second frame body has a plurality of second engagement parts. The impeller is rotatably disposed on the fan frame. The cushion components are respectively located on different sides of the fan frame. The first fasteners are respectively disposed through the cushion components and engaged with the first engagement parts of the first frame body. The second fasteners are respectively disposed through the cushion components and engaged with the second engagement parts of the second frame body.

An air purifier includes a housing having an air inlet and an air outlet, a filter disposed adjacent the air inlet, a blower unit disposed within the housing to draw air through the air inlet and expel air through the air outlet, a battery receptacle configured to engage a battery for providing power to the motor, and a handle coupled to the housing to facilitate transportation of the air purifier. The blower unit includes a motor and an impeller driven by the motor to induce an air flow, and rotation of the impeller induces air flow at a rate between approximately 400 cubic feet per minute and approximately 800 cubic feet per minute.

A body drying apparatus for attachment to bathroom fixtures, shower rods, shower curtain rods, or shower doors, for drying the entire body or parts thereof, having a housing with air inlet openings and air discharge apertures. One or more fans are positioned within the housing unit. One or more adjustable retaining and positioning rods are attached to the housing, and at the other end to a shower rod, shower door, or other bathroom by a slidably positionable attachment mechanism. A power source is connected to the one or more fans within the housing.

An electronic device with a fan assembly is disclosed. The fan assembly includes an impeller and an insert separated from the impeller by a gap. The fan assembly increases airflow by rotationally driving the impeller. For a sufficient rotational speed of the impeller, the airflow reaches a level that provides a force that displaces the insert. The displacement may include movement and/or compression of the insert. As a result of the displacement, the gap between the impeller and the insert increases. The increased gap reduces the pressure and associated noise that is otherwise caused by the airflow. When the rotational speed of the impeller reduces or ceases, the insert returns to its initial position. In this manner, the fan assembly includes a self-adjusting gap that changes based on the airflow.

A ventilation and heat dissipation apparatus of a wind-assisted rotor includes a cylinder (2), a top cover (3), and a rain shielding plate (4). The top cover (3) is disposed at the top of the cylinder (2) and covers the top of the cylinder (2), and the top cover (3) is provided with a manhole (1) communicating with an inner cavity of the cylinder (2). The rain shielding plate (4) is disposed above the manhole (1) and covers the manhole (1), and the rain shielding plate (4) and the top cover (3) are spaced apart to form a heat dissipation gap that communicates with an external atmosphere.

A ventilation fan with lamp is used to be installed to a ceiling including an installation opening and comprises a housing, a fan module and a lamp module. The housing includes a first opening and a second opening, and the first opening is aligned with the installation opening. The fan module is disposed in the housing. The lamp module is fixed to the first opening by a plurality of elastic elements passing through the housing and includes a lamp cover, a base and a lens. The lamp cover includes a flange portion and a plurality of contact portions, the flange portion and the contact portions are disposed outside the installation opening of the ceiling. The lamp module is connected to the ceiling via the contact portions to make a gap between the lamp cover and the ceiling, and the gap serves as an air inlet of the ventilation fan.