FILAMENT STRUCTURE OF LED LIGHT BULB
FIG3 is a schematic view showing the assembly of a part of an LED light bulb according to another preferred embodiment of the present invention
As illustrated in FIG3, the LED light bulb comprises two filament supports 40, 40a, wherein a first metal post 41 and a second metal post 42 of each of the two filament supports 40, 40a are electrically connected with a positive terminal 51 and a negative terminal 52 of a screw base 10 respectively.
schematic view
30
LED filament LED filaments
11
glass seat
42
post
41
first metal post
31
first electrode pin
32
second electrode pin
['1. A light-emitting diode (LED) light bulb comprising: a screw base, a transparent housing, at least one filament support, and at least one LED filament; the transparent housing being hollow and including an opening, and the screw base including a positive terminal and a negative terminal which are electrically connected with an external power supply so as to supply driving power to the at least one LED filament, wherein each of the at least one filament support includes a first metal post electrically connected with the positive terminal of the screw base and includes a second metal post electrically connected with the negative terminal so as to transmit the driving power; wherein each of the at least one LED filament includes a substrate, a first electrode pin and a second electrode pin which are arranged on two sides of the substrate respectively, a thermal radiation film formed on a back face of the substrate, at least one LED chip molded on a front face of the substrate, a wire, and a fluorescent; wherein the at least one LED chip is electrically connected with the first electrode pin and the second electrode pin in a series connecting manner by using the wire, wherein the first electrode pin is electrically connected with the first metal post, and the second electrode pin is electrically connected with the second metal post so that an LED drive circuit is defined; wherein the at least one LED filament and the at least one  filament support are accommodated in the transparent housing, and the screw base is housed into the opening of the transparent housing, and the opening is closed.']