Patent Application
20080003101
The invention will become more fully understood from the detailed description given herein below illustration only, and thus is not limitative of the present invention, and wherein:
The present invention will be apparent from the following detailed description, which proceeds with reference to the accompanying drawings, wherein the same references relate to the same elements.
With reference to
The top portion 201 includes a surface for bearing an external force. In this case, a plurality of protruding structures 203 are formed on the top portion 201 and are disposed around a central axis of the top portion 201 so as to increase the force-bearing area over which force is dispersed thereon. The thickness of the protruding structures 203 is roughly the same as that of the top portion 201. Of course, the invention is not limited by this restriction, and the thickness of the protruding structures 203 may be different from that of the top portion 201, as requirements of practical uses, as long as the configuration of the protruding structures 203 can achieve the functions of increasing the force-bearing area of the top portion 201.
As shown in
In the embodiment, the cross section of the protruding structure 203 has a shape which is U-shaped, half-circular, half-elliptical, arched, polygonal, wave-shaped, toothlike, or has any other shapes. In addition, as shown in
With reference to
The rotor structure 22, which has a shaft 221, is disposed corresponding to the stator structure 21. The stator structure 21 mounts on the shaft 221. Thus, the rotor structure 22 can rotate relative to the stator structure 21 via the magnetic field effects.
In the embodiment, the stator structure 21 and the rotor structure 22 are accommodated in the housing 20, and the shaft 221 of the rotor structure 22 is connected with the housing 20. Herein, the housing 20 serves as a base of the motor 2. The top portion 201 is the surface adjacent to a bearing 23 of the motor 2. As shown in
To be noted, the structural characteristics and functions of the housing 20 of this embodiment are the same as those of the previous embodiment, so the detailed descriptions are omitted.
Referring to
The motor 2 includes a stator structure 21, a rotor structure 22 and a first housing 24. The first housing 24 is equivalent to the housing 20 of the previous embodiment, and the structural characteristics and functions of the motor 2 are the same as those of the previous embodiment, so the detailed descriptions thereof are omitted. In the embodiment, the first housing 24 is a base of the motor 2.
The impeller 30, is connected with the rotor structure 22 of the motor 2, includes a second housing 302 and a plurality of blades 301. The blades 301 are disposed around the second housing 302, and the second housing 302 is connected with the shaft 221. Therefore, when the shaft 221 of the motor 2 rotates, the impeller 30 rotates according thereto and thus generates an airflow. In the embodiment, the second housing 302 is a hub of the impeller 30.
The protruding structures 203 are disposed either on a top portion of the first housing 24 or the second housing 302 to increase the force-bearing area of the top portion. Or, the protruding structures 203 can be disposed both on the top portions of the first housing 24 and the second housing 302. Owing to the many possible directions of the force, the positions of the protruding structures 203 are various. The structural characteristics, positions and functions of the protruding structures 203 are the same as those of the previous embodiment, so the detailed descriptions are omitted.
In additional, the fan 3 further includes a connecting member 31, which connects the second housing 302 to the blades 301. In detailed, the connecting member 31 is extended along the outer periphery of the second housing 302, and the blades 301 are fixed on the connecting member 31. Importantly, the above illustrations are for example only. The connecting member 31 may be integrally formed with the second housing 302 and the blades 301 as a single piece.
In summary, the fan, motor and housing of the present invention have a plurality of protruding structures disposed on the top portion of the housing. In addition, the thickness of the protruding structures is roughly the same as that of the top portion. In the invention, the protruding structures are formed by deforming the top portion of the housing. The protruding structures can increase the force-bearing area over which force is dispersed so as to provide buffering by planes. This structure can thus efficiently distribute the force applied to the housing evenly. The present invention utilizes the protruding structures instead of using additional elements such as ribs to providing reinforcing functions. Therefore, the present invention can achieve the object of strengthening the structure and can be manufactured with fewer raw materials so as to reduce the manufacturing cost.
Although the invention has been described with reference to specific embodiments, this description is not meant to be construed in a limiting sense. Various modifications of the disclosed embodiments, as well as alternative embodiments, will be apparent to persons skilled in the art. It is, therefore, contemplated that the appended claims will cover all modifications that fall within the true scope of the invention.
| Number | Date | Country | Kind |
|---|---|---|---|
| 095123742 | Jun 2006 | TW | national |
