Patent Application
20070280651
With reference to
The shell (10) includes a base (11) and a cover (12) mounted on the base (11) with bolt or other fasteners. The base (11) has a chamber, a seat, at least one air inlet (13) and at least one air outlet (14). The seat is formed at the bottom of the chamber, and the air inlet (13) and air outlet (14) are defined in the shell and communicates with the chamber. In optional embodiments, an air inlet (13) and an air outlet (14) are defined respectively in the top and the bottom of the shell (10), or two air inlets (13) are defined respectively in the top and the bottom of the shell (10) and at least one air outlet (14) is defined in the base (11) near the bottom of the base (11).
The circuit board (20) is mounted in the chamber above the seat, with circuitry, inductor, and other electric elements.
The stator (30) with windings is mounted in the chamber above the circuit board (20), the windings are electrically connected with the circuit board (20).
The rotator (40) is mounted in the chamber around the stator (30), has a hollow impeller, multiple blades, a permanent magnet (41) and a pintle. The hollow impeller has a cavity in which the stator (30) is mounted. The blades are formed round the hollow impeller. The permanent magnet (41) is mounted in the inner wall of the hollow impeller around and separated from the stator (30). The pintle is mounted in the center of the cavity, mounted in the center of the stator (30) with a bearing, so that the rotator (40) is able to rotate around the stator (30).
Multiple far infrared radiators (50) are mounted at the air outlets (14), a ventilation space (15) is between each pair of adjacent radiators (50). Each far infrared radiator (50) includes a ceramic chip (51) that is able to radiate far infrared ray, and a heater (52) is mounted in the ceramic chip (51) and is electrically connected with the circuit board (20) to generate heat and activate the ceramic chips (51) to emit the far infrared ray.
When the fan is actuated to make the rotator (40) rotation, air will be drawn into the chamber from the inlet (13) and discharged from the outlet (14) to provide a heat dissipating effect. At this time, the heaters (52) are actuated to generate heat and activate the ceramic chip (51) to emit the far infrared ray, so that the fan in accordance with the present invention has auxiliary function of far infrared ray emission and is versatile in use.
It is to be understood, however, that even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only. Changes may be made in the details, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
