Fan base case

• US 20060056966A1
• Filed: 09/13/2004
• Published: 03/16/2006
• Est. Priority Date: 09/13/2004
• Status: Active Grant

• Current Assignee: Asia Vital Components Company Limited
• Original Assignee: Asia Vital Components Company Limited
• Inventors: Liu, Chih-Hung
• Granted Patent: US 7,168,920 B2
• Time in Patent Office: Days
• US Class Current: 415/220
• CPC Class Codes: F04D 25/0613 the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
• CPC Class Codes: F04D 29/526 Details of the casing section radially opposing blade tips ducts F04D29/545

Abstract

A fan case base, which is for being mounted with a fan wheel having a hub and a plurality of fan blades surrounding the hub, includes a base support, a frame and a plurality of engaging parts. The base support is attached with the fan wheel. The frame is disposed around the periphery of the base support and provides the height thereof less than that of the fan blades. The engaging parts are disposed at the top of the frame for the fan case base being attached to an article and provide the height thereof greater than that of fan blades. The fan case base 2 can provide a best mode of guiding the airflow, enhancing the effect of cushion and shock absorption during the airflow entering the frame 22 and the fan blades 32 of the fan heel 3 not touching the frame 22 even in case of the fan case base 2 being hung vertically.

Claims

1. A fan case base for being mounted with a fan wheel having a hub and a plurality of fan blades surrounding the hub, comprising:

a base support, being attached with the fan wheel;

a frame, being disposed around the periphery of the base support and providing the height thereof less than that of the fan blades; and

a plurality of engaging parts, being disposed at the top of the frame for the fan case base being attached to an article and providing a height thereof greater than that of fan blades.

2. The fan case base as defined in claim 1, wherein the frame has a cubic shape with four corners thereof being provided with and each of the engaging parts is made of rubber.

3. The fan case base as defined in claim 2, wherein each of the engaging parts has a cylindrical element and a locating hole passes through the cylindrical element.

4. The fan case base as defined in claim 1, wherein each of the engaging parts has an angle projection corresponding to frame and a locating hole passes through the projection.