Fan structure and manufacturing method thereof
US10487845B2 · kind B2 · utility
2Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2017 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Jan 20, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/2222
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fan structure includes a first fixing ring and a plurality of fan blades. The first fixing ring includes a plurality of first recesses radially arranged on the first fixing ring. One side of the fan blades is coupled to the first recesses of the first fixing ring. The first fixing ring includes a stamped part and a non-stamped part, in which the stamped part is in contact with the fan blades, and the thickness of the stamped part is smaller to the thickness of the non-stamped part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.