Electric cooling fan and case of electronic or electric device
US7118333B2 · kind B2 · utility
11Cited by
10References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 20, 2003 |
| Grant date | Oct 10, 2006 |
| Priority date | — |
| Expiry date | Jan 23, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/544
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A case that is used for an electronic or electric device has an opening portion arranged at a vicinity of a fan motor that generates airflow inside and outside the case. The opening portion has a protection portion for preventing a finger or other matters from entering the fan motor. The protection portion includes a first rib group extending linearly in a lateral direction, a second rib group extending linearly in a second direction vertical direction. Each of the ribs has an inclined surface that is along a direction of the airflow exhausted from the fan motor and faces the inside or the outside of the opening portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.