Title:
FAN BLADE STRUCTURE AND CEILING FAN
Document Type and Number:
WIPO Patent Application WO/2023/197870
Kind Code:
A1
Abstract:
The present application provides a fan blade structure and a ceiling fan. The fan blade structure comprises fan blade main bodies (1); each fan blade main body comprises a first edge (11) located on an air receiving side, a second edge (12) located on a leeward side and a third edge (13) connected between the first side and the second edge; the first edge, the second edge and the third edge are all curved edges; the end of the fan blade main body close to the third edge is defined to be a fan blade end portion (1a), and the end of the fan blade main body furthest from the third edge is defined to be a fan blade root portion (1b); the first edge has a first end close to the fan blade root portion and a second end connected to the third edge; the curvature radius of the first edge reduces and then increases from the first end to the second end; the curvature radius of the second edge is greater than that of the first edge; the third edge has a third end connected to the first edge and a fourth end connected to the second edge; the curvature radius of the third edge gradually increases from the third end to the fourth end, so as to form an acute angle structure (15) at the joint between the third edge and the second edge. Compared with the prior art, the present application can improve the air blowing effect of the fan blade structure.
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Inventors:
WANG XIAOLEI (CN)
ZHANG GUOBAO (CN)
WANG WEIGUANG (CN)
DAI LIPING (CN)
ZHANG GUOBAO (CN)
WANG WEIGUANG (CN)
DAI LIPING (CN)
Application Number:
PCT/CN2023/084737
Publication Date:
October 19, 2023
Filing Date:
March 29, 2023
Export Citation:
Assignee:
SUZHOU OPPLE LIGHTING CO LTD (CN)
OPPLE LIGHTING CO LTD (CN)
OPPLE LIGHTING CO LTD (CN)
International Classes:
F04D25/08; F04D27/00; F04D29/36; F04D29/38; F04D29/64; F21V33/00
Domestic Patent References:
| WO2015146013A1 | 2015-10-01 |
Foreign References:
| CN114704490A | 2022-07-05 | |||
| CN217206968U | 2022-08-16 | |||
| CN113266590A | 2021-08-17 | |||
| CN109185226A | 2019-01-11 | |||
| CN111608955A | 2020-09-01 | |||
| US20080008596A1 | 2008-01-10 |
Attorney, Agent or Firm:
SUZHOU LINKED INTELLECTUAL PROPERTY AGENCY (CN)
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