Source: https://patents.google.com/patent/US20060078426?oq=3657699
Timestamp: 2018-03-18 18:13:26
Document Index: 62972850

Matched Legal Cases: ['art 22', 'art 22', 'art 211', 'art 22', 'art 211', 'art 22', 'art 211', 'art 211', 'art 211', 'art 22']

US20060078426A1 - Blower capable of reducing secondary flow - Google Patents
US20060078426A1
US20060078426A1 US10959974 US95997404A US2006078426A1 US 20060078426 A1 US20060078426 A1 US 20060078426A1 US 10959974 US10959974 US 10959974 US 95997404 A US95997404 A US 95997404A US 2006078426 A1 US2006078426 A1 US 2006078426A1
US10959974
US7329095B2 (en )
ASIA TAL COMPONENT Co Ltd
Referring to FIGS. 4 and 5, a blower 2 according to the present invention comprises a frame 21 and a wheel blade part 22. The wheel blade part 22 is composed of a hub 221 and a plurality of blades 222 surrounded the hub 221. The frame 21 is composed of a base 211 and an lid plate 212 and base 211 at the inner side 211 a thereof is provided with a projection part 211 b corresponding to the lower edges 222 a of the blades 222 on the wheel blade part 22.
Referring to FIG. 6, the projection part 211 b reduces the distance between the lower edges 222 a and the inner side 211 a to the least extent and partitions the distance. When the wheel blade part 22 rotates, the airflow introduced by the blades 222 can be restricted by the projecting part 211 b to allow the airflow being not easy to constitute secondary flow between the lower edges 222 a of the blades 222 and the inner side 211 a of the base 211.
Besides, a first guide part 211 e and a second guide part 211 f can be provided at air passage 211 c of the base 211 near the opening 211 d to reduce noise created by the wheel blade part 22 of the blower 2 during running.
1. A blower capable of reducing secondary flow, comprising:
a frame, being composed of a base and an upper lid plate and a projection part being provided at inner side of base; and
a wheel blade part, being composed of a hub and a plurality of blades surrounding the hub and being mounted in the frame.
a frame, being composed of a base and an upper lid plate and a projection part being provided at inner side of base.
2. The blower capable of reducing secondary flow as defined in claim 1, wherein a first guide part and a second guide part is provided at an air passage of the base near an opening thereof.
US10959974 2004-10-08 2004-10-08 Blower capable of reducing secondary flow Active 2025-04-19 US7329095B2 (en)
US10959974 US7329095B2 (en) 2004-10-08 2004-10-08 Blower capable of reducing secondary flow
US20060078426A1 true true US20060078426A1 (en) 2006-04-13
US7329095B2 US7329095B2 (en) 2008-02-12
ID=36145533
US10959974 Active 2025-04-19 US7329095B2 (en) 2004-10-08 2004-10-08 Blower capable of reducing secondary flow
US (1) US7329095B2 (en)
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JP4935051B2 (en) * 2005-11-01 2012-05-23 日本電産株式会社 Centrifugal fan
CN101649845B (en) 2008-08-13 2013-02-20 富准精密工业(深圳)有限公司 Centrifugal fan
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US20050123398A1 (en) * 2003-12-06 2005-06-09 Johnson Electric S.A. Blower motor
US7329095B2 (en) 2008-02-12 grant
US6798098B1 (en) 2004-09-28 Heat-radiating structure for ceiling fan&#39;s motor housing
Owner name: ASIA TAL COMPONENT CO., LTD., TAIWAN
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WANG, CHUNG-SHU;REEL/FRAME:015885/0140