Title:
NOVEL TRANSPARENT EXHAUST FAN
Document Type and Number:
WIPO Patent Application WO/2018/149154
Kind Code:
A1
Abstract:
A novel transparent exhaust fan, comprising a transparent frame (1), transparent blades (2), the rotation thereof driven by an electric motor (3), an elastic reset connector (4) and a rotating limiting connector (5) connecting the transparent blade (2) to the elastic reset connector (4). An airflow-blocking member (6) is provided on the transparent blade (2). When the exhaust fan is turned off, the transparent blades (2) close automatically under the action of the elastic reset connector (4) to form a transparent closed flat surface. When the exhaust fan is turned on, the blades (2) open to a preset angle as the result of torsion applied by the airflow-blocking member (6) to the blades (2), and then open completely under the action of flowing air. The blades (2) automatically close to form a transparent closed flat surface under the action of a built-in spring or elastic material when the exhaust fan is turned off. Upon turning on the exhaust fan, the blades (2), by means of the raised airflow-blocking member (6), which applies a torsion required to open the blades (2), are first opened to a preset angle and then opened completely under the action of flowing air, achieving the same air exhaust performance as a conventional exhaust fan.
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Inventors:
YUAN ZEHAO (CN)
Application Number:
PCT/CN2017/105228
Publication Date:
August 23, 2018
Filing Date:
October 01, 2017
Export Citation:
Assignee:
YUAN ZEHAO (CN)
International Classes:
F04D25/08; F04D29/38; F04D29/52
Foreign References:
| DE3610663C1 | 1987-08-06 | |||
| CN204692133U | 2015-10-07 | |||
| CN204663930U | 2015-09-23 | |||
| CN2122253U | 1992-11-18 | |||
| KR20110062225A | 2011-06-10 | |||
| CN2818865Y | 2006-09-20 | |||
| CN204003600U | 2014-12-10 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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