Invention Grant
US08348625B2 Multiple fan speed control system for preventing overload at start-up
有权
多风扇转速控制系统，用于防止起动过载
- Patent Title: Multiple fan speed control system for preventing overload at start-up
- Patent Title (中): 多风扇转速控制系统，用于防止起动过载
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Application No.: US12595875Application Date: 2008-04-22
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Publication No.: US08348625B2Publication Date: 2013-01-08
- Inventor: Toshiaki Sato , Hiroshi Doumae , Sumio Kagimura
- Applicant: Toshiaki Sato , Hiroshi Doumae , Sumio Kagimura
- Applicant Address: JP Osaka
- Assignee: Daikin Industries, Ltd.
- Current Assignee: Daikin Industries, Ltd.
- Current Assignee Address: JP Osaka
- Agency: Global IP Counselors
- Priority: JP2007-115061 20070425
- International Application: PCT/JP2008/057726 WO 20080422
- International Announcement: WO2008/133240 WO 20081106
- Main IPC: F04B49/00
- IPC: F04B49/00 ; H02P5/00
Abstract:
A fan control system includes first and second adjacent fans, first and second motors configured to rotate the first and second fans, and a control unit configured to control rotational speeds of the first and second motors in order to control rotational speeds of the first and second fans. The first and second motors are energized such that the rotational speeds of the first and second fans reach target rotational speeds prior to increasing the rotational speeds of the first and second fans to required rotational speeds. The target rotational speeds are lower than the required rotational speeds. The first and second motors are energized such that the rotational speeds of the first and second fans reach the required rotational speeds after the rotational speeds of the first and second fans reach the target rotational speeds.
Public/Granted literature
- US20100114379A1 FAN CONTROL SYSTEM Public/Granted day:2010-05-06
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