Abstract

Highly efficient solar fans used in portable and built in configurations. A ventilation fan can be used for exhausting air out from underneath roofs, and/or for being portable in use and application. The fan can include optimized airflow blades having a twisted configuration that can move at a rotational speed operation of up to approximately 500 rpm. The approximately 15 inch diameter twisted blades can be pre-milded on a hub that together form a single molded unit of plastic. They can also be fabricated using metal. The unit can be mounted in an exhaust outlet having a conical diffuser on or adjacent to a roof. Another embodiment allows for portable solar powered fans used anywhere there is a need for ventilation and moving of air. The blades and motor can generate up to approximately 1040 cfm while using no more than approximatley 16 Watts. Portable fans can be powered by solar panels. One embodiment has solar panels mounted to a handtruck. Another embodiment has solar panels in a carrying case with a handle having leg(s) which can bend downward to different angled positions. The solar panel carrying case and the fan can each have single handles that allows for the portable fan assembly to carried and transported by both hands of a single user.

Document Type

Patent

Patent Number

US 7,850,513

Application Serial Number

12/183,279

Issue Date

12-14-2010

Current Assignee

UCFRF

Assignee at Issuance

UCFRF

College

Florida Solar Energy Center (FSEC)

Department

FSEC

Allowance Date

8-4-2010

Filing Date

7-31-2008

Assignee at Filing

UCFRF

Filing Type

Nonprovisional Application Record

Donated

no

Download Patent

Share

COinS