Fan and frame structure thereof
US10641285B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2017 |
| Grant date | May 5, 2020 |
| Priority date | — |
| Expiry date | Jul 17, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/542
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fan includes an impeller, a drive device, and a frame structure. The driving device drives the impeller to rotate, and the frame structure accommodates the driving device. The frame structure includes a frame body, a first frame, a second frame, a base and a plurality of supports. The frame body has first engaging portions and second engaging portions, which are disposed annularly at the upper end and the lower end of the frame body, respectively. The first frame is mounted on the frame body and disposed corresponding to the first engaging portions. The second frame is mounted on the frame body and disposed corresponding to the second engaging portions. The base is disposed within the frame body and located adjacent to the second frame. The supports are disposed around the base. The material of the frame body is different from that of the first and second frames.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.