Invention Grant
- Patent Title: Heating and ventilation fan for bathroom
- Patent Title (中): 浴室暖气通风扇
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Application No.: US13574737Application Date: 2011-02-10
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Publication No.: US09347464B2Publication Date: 2016-05-24
- Inventor: Yefan Weng , Liang Tian , Hongjian Yuan , Shuang Jin , Makoto Ishikawa , Takuya Arai
- Applicant: Yefan Weng , Liang Tian , Hongjian Yuan , Shuang Jin , Makoto Ishikawa , Takuya Arai
- Applicant Address: CN Foshan Gangdon JP Osaka
- Assignee: Panasonic Ecology Systems Guandong Co. Ltd.,Panasonic Corporation
- Current Assignee: Panasonic Ecology Systems Guandong Co. Ltd.,Panasonic Corporation
- Current Assignee Address: CN Foshan Gangdon JP Osaka
- Agency: RatnerPrestia
- Priority: CN201010127188 20100315
- International Application: PCT/CN2011/000207 WO 20110210
- International Announcement: WO2011/113296 WO 20110922
- Main IPC: F04D29/58
- IPC: F04D29/58 ; F04D17/16 ; F04D27/00 ; F24F7/007 ; F24F13/10 ; F24F13/14 ; F24F13/20
Abstract:
A heating and ventilation fan for a bathroom comprises an ventilation fan frame, a scroll casing provided with fan blades and a motor, an air passage-switching plate, and a heater; characterized in that: an air leakage-preventing structure is provided between an air outlet of the scroll casing and the air passage. The advantage of the present invention is that a desired air amount can be ensured and a noise can be reduced while guaranteeing a gap required for smooth rotation of the air passage-switching plate.
Public/Granted literature
- US20130004299A1 HEATING AND VENTILATION FAN FOR BATHROOM Public/Granted day:2013-01-03
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