US 12,490,352 B2
LED module lamp control device using pull chain switch
Yuanfeng Lai, Zhongshan (CN); Zibai Yu, Zhongshan (CN); Yuanzhong Lai, Zhongshan (CN); and Chuiyou Guo, Zhongshan (CN)
Assigned to Idea DC Motor & LED Co., Ltd, Zhongshan (CN)
Filed by Idea DC Motor & LED Co., Ltd, Zhongshan (CN)
Filed on Feb. 12, 2024, as Appl. No. 18/438,815.
Claims priority of application No. 202320761536.X (CN), filed on Apr. 7, 2023.
Prior Publication US 2024/0341016 A1, Oct. 10, 2024
Int. Cl. H05B 45/30 (2020.01); H05B 45/14 (2020.01); H05B 45/20 (2020.01); H05B 45/325 (2020.01); H05B 45/345 (2020.01)
CPC H05B 45/14 (2020.01) [H05B 45/20 (2020.01); H05B 45/325 (2020.01); H05B 45/345 (2020.01)] 8 Claims
OG exemplary drawing
 
1. A LED module lamp control device using pull chain switch, comprising:
a light-emitting assembly;
a pull chain switch assembly configured to form a switch signal when being driven, wherein the switch signal is used to represent that the pull chain switch assembly is switched from a turn-on state to a turn-off state or from a turn-off state to a turn-on state;
a control module having a signal input terminal, wherein the signal input terminal of the control module is connected to the pull chain switch assembly to obtain a switch signal;
a power drive module configured to connect to a power supply; and
a dimming drive module connected to the light-emitting assembly to form at least part of a dimming drive branch, wherein the power drive module is connected to the dimming drive branch to supply power to the light-emitting assembly, the control module is connected to a controlled end of the dimming drive module, the control module forms a control signal according to the switch signal and outputs the control signal to control the dimming drive module to adjust a brightness, a color temperature or on/off of the light-emitting assembly;
wherein the pull chain switch assembly comprises a base shell, a rotating wheel and a chain, the base shell is provided with a first electrical connection terminal and a second electrical connection terminal, the control module is connected to the first electrical connection terminal and the second electrical connection terminal, the rotating wheel is rotatably arranged on the base shell, the rotating wheel is provided with a conductive part, the chain is connected to the rotating wheel, pulling of the chain is capable of driving the rotating wheel to rotate to switch at least between a first position and a second position, in the first position state, one end of the conductive part is in conductive contact with the first electrical connection terminal and an other end of the conductive part is in conductive contact with the second electrical connection terminal, and in the second position state, the conductive part is separated from the first electrical connection terminal and the second electrical connection terminal.