公开(公告)号：EP3333430A1

公开(公告)日：2018-06-13

申请号：EP17204994.2

申请日：2017-12-01

申请人： GE Lighting Solutions, LLC

发明人： FANG, Min ,  LONG, Qi ,  SHAN, Liang ,  QIN, Shuyi ,  LI, Yong

IPC分类号： F04D27/00 ,  F21V29/60 ,  F21V29/61 ,  F21V29/67

CPC分类号： H05K7/20209 ,  F04D27/004 ,  F04D27/008 ,  F21V17/101 ,  F21V17/12 ,  F21V19/0015 ,  F21V29/61 ,  F21V29/70 ,  F21Y2115/10 ,  H05K7/20136

摘要： The present invention relates to a method for controlling the rotational speed of a fan (107) of an LED lamp, comprising: presetting a corresponding relationship between a voltage, a current and a temperature for an LED chip in the LED lamp in the controller, as well as presetting a corresponding relationship between the temperature of LED chip and the speed of the fan (107) in the controller, measuring the voltage and current of the LED chip, obtaining the current calculated temperature of the LED chip through the measured voltage and current, and further determining the current desired fan (107) speed through the obtained current calculated temperature, using the controller to control the fan (107) to rotate at the current desired speed, thereby cooling the LED chip. The present invention also relates to a corresponding system for controlling the rotational speed of the fan (107) of an LED lamp and an LED lamp including the system.