Patent ID: 10448466

Abstract:
The present invention comprises a stem structure and an LED lighting device, wherein the stem structure comprises a substrate, configured to be bent into a substrate device with a internal hollow structure, wherein a plurality of LED lamp beads and a plurality of pin needles are attached to a surface of the substrate device; a horn mouth comprising a first wide mouth portion and a first narrow mouth portion opposite to the first wide mouth portion, the first narrow mouth portion being provided with a plurality of upper guide wires for connecting to the plurality of pin needles; a plurality of lower guide wires, disposed inside the horn mouth, and configured to be connected to the plurality of upper guide wires through the first narrow mouth portion; and a glass tube disposed inside the horn mouth and attached to the plurality of lower guide wires; wherein the LED lighting device comprises a glass bulb, wherein a lamp head is disposed at an opening of the glass bulb; a driving circuit board fixedly connected to the lamp head with a collar, an input end of the driving circuit board being electrically connected to the lamp head; and the stem structure, disposed inside the glass bulb, and configured to be electrically connected to an output end of the driving circuit board through the lower guide wire. The technical solution has the following advantages: the stem structure and the LED lighting device have a simple structure, a low cost, a high pass rate, and they can withstand external force.