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Patent Searching and Data


Title:
CEILING FAN
Document Type and Number:
WIPO Patent Application WO/2016/042696
Kind Code:
A1
Abstract:
A ceiling fan is provided with a control unit (3) for controlling a DC motor (2) that causes blades to rotate. Further, the control unit (3) is provided with a rotation speed detection unit (6) for detecting a rotation speed of the DC motor (2), a current detection unit (7) for detecting the value of a current supplied to the DC motor (2), and a target rotation speed setting unit (12) for setting a target rotation speed of the DC motor (2). The control unit (3) is further provided with a rotation speed control unit (9) for controlling the DC motor (2) in such a manner that the rotation speed detected by the rotation speed detection unit (6) becomes a target rotation speed, and a target rotation speed correction unit (8) for changing the target rotation speed in such a manner that the value of the current detected by the current detection unit (7) falls within a predetermined range. Because the DC motor (2) is capable of operating at a set current value, the ceiling fan can be operated with a predetermined capacity irrespective of the state of installation on a ceiling.

Inventors:
YAMAGUCHI, Masashi
ITOU, Harumoto
UENO, Satosi
SAKITO, Daiki
Application Number:
JP2015/003720
Publication Date:
March 24, 2016
Filing Date:
July 24, 2015
Export Citation:
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Assignee:
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. (1-61, Shiromi 2-chome Chuo-ku, Osaka-sh, Osaka 07, 〒5406207, JP)
International Classes:
F04D27/00; F04D25/08; H02P6/16
Foreign References:
JP2001193688A2001-07-17
JP2008196442A2008-08-28
JP2013189953A2013-09-26
JP4649934B22011-03-16
US20140227105A12014-08-14
US20080119126A12008-05-22
Attorney, Agent or Firm:
FUJII, Kentaro et al. (1-61, Shiromi 2-chome, Chuo-ku, Osaka-sh, Osaka 07, 〒5406207, JP)
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