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US 8,147,091 B2Granted
Linear solid-state lighting with shock protection switches
AssigneeLightel Technologies, Inc.
InventorsChungho Hsia, Pai-Sheng Shen, Ching-Feng Lin
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Abstract
A linear light-emitting diode (LED)-based solid-state device comprising at least two shock protection switches, at least one each at the two ends of the device, fully protects a person from possible electric shock during re-lamping with LED lamps.
Claims18
A linear light-emitting diode (LED) tube lamp, comprising:
- a housing having two ends and a platform on a top side thereof between the two ends;
- a light-emitting diode printed circuit board (LED PCB) fixed on top of the platform, the LED PCB having a plurality of LEDs fixed thereon;
- an LED driver that powers the plurality of LEDs on the LED PCB, the LED driver having two inputs and fixed inside the housing below the platform;
- and
- two lamp bases respectively connected to the two ends of the housing, each lamp base having an end cover and a lamp base PCB assembly comprising a bi-pin with two pins protruding outwards through the end cover, a lamp base PCB, and a shock protection switch mounted on the lamp base PCB, wherein:
- when the shock protection switch is off, the bi-pin is not electrically connected with the LED driver;
- when the bi-pin is inserted into a lamp socket, the shock protection switch is actuated to electrically connect the bi-pin with one of the inputs of the LED driver.
4 more elements
Dependencies are inferred from the claim text.