Waterproof LED decorative bulb

Abstract

A waterproof LED decorative bulb comprises a lampshade, a horizontal first circuit board, and a plurality of patch LED luminous bodies, the first circuit board is connected with a conductive pin, underneath of the conductive pin is electrically connected with a vertical second circuit board, a lower end of the second circuit board is electrically connected with a hard vertical pin-type electrode and a upward-bending conductive wire, underneath of the conductive pin is provided with a silica gel cushion, a bottom of the lampshade is provided with an outer threaded connection portion which is in threaded connection with a metal connecting base, a bottom of the silica gel cushion is fitted with an inner bottom of the metal connecting base, the pin-type electrode pierces through the silica gel cushion and extends out of a through hole at the bottom of the metal connecting base to form an extending portion.

Claims

1. A waterproof LED decorative bulb, comprising a lampshade (1), a horizontal first circuit board (2) horizontally placed at an inner bottom of the lampshade, and a plurality of mounted LED luminous bodies (3) arranged on the first circuit board, wherein a bottom surface of the first circuit board is connected with two hard vertical conductive pins (4), underneath of the two conductive pins is electrically connected with a vertically placed second circuit board (5), the second circuit board is provided with a mounted resistor and an LED driving chip, a lower end of the second circuit board is electrically connected with two electrodes, one of the two electrodes is a hard vertical pin-type electrode (6) and the other thereof is an upward-bending conductive wire (7), underneath of the conductive pins is provided with a silicone cushion (8), a bottom of the lampshade is provided with an outer threaded connection portion (9) which is in threaded connection with a metal connecting base (10), the first circuit board, the second circuit board and the silicone cushion are enclosed within the lampshade and the metal connecting base, an inner bottom of the lampshade and an inner wall of the metal connecting base fix the first circuit board, the second circuit board and the silicone cushion in position therebetween, each of a side wall (11) and a bottom (12) of the metal connecting base is a contact electrode, a bottom of the silicone cushion is fitted with an inner bottom of the metal connecting base, the pin-type electrode pierces through the center of the silicone cushion and extends out of a through hole at the bottom of the metal connecting base to form an extending portion (13), the extending portion and the bottom of the metal connecting base are connected by soldering tin, the conductive wire is contacted with an inner side wall of the metal connecting base, an engagement portion between the lampshade and the outer threaded connection portion is provided with a waterproof groove (14), and the waterproof groove is internally provided with a waterproof rubber gasket (15).

2. The waterproof LED decorative bulb according to claim 1, wherein the silicone cushion is provided with a circular table (16), and an outer edge of the circular table is contacted with and compressed with the inner side wall of the metal connecting base.

3. The waterproof LED decorative bulb according to claim 1, wherein the silicone cushion is provided with a concave bottom (17), and an outer edge of the concave bottom is fitted and contacted with and compressed with the inner side wall of the metal connecting base.

4. The waterproof LED decorative bulb according to claim 1, wherein the center of an upper surface of the silicone cushion is provided with a sunken portion (18), and the pin-type electrode pierces through the silicone cushion from the sunken portion.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The invention will be further described in details with reference to the drawings and the implementation manner hereinafter.

(2) FIG. 1 is a schematic diagram of a three-dimensional structure of the invention; and

(3) FIG. 2 is a schematic diagram of structural decomposition of the invention, and

(4) FIG. 3 is a cross sectional view of an internal structure at a region A shown in FIG. 1.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

(5) Refer to FIG. 1 and FIG. 2, according to the invention, a waterproof LED decorative bulb comprises a lampshade 1, a horizontal first circuit board 2 horizontally placed at an inner bottom of the lampshade, and a plurality of patch LED luminous bodies 3 arranged on the first circuit board, adopting a patch LED luminous body is beneficial to scattering the light all around so as to enhance the illumination effect, a bottom surface of the first circuit board is connected with two hard vertical conductive pins 4, underneath of the two conductive pins is electrically connected with a vertically placed second circuit board 5, the second circuit board is provided with a patch resistor and an LED driving chip, a lower end of the second circuit board is electrically connected with two electrodes, one of the two electrodes is a hard vertical pin-type electrode 6 and the other thereof is a upward-bending conductive wire 7, underneath of the conductive pin is provided with a silica gel cushion 8, a bottom of the lampshade is provided with an outer threaded connection portion 9 which is in threaded connection with a metal connecting base 10, the first circuit board, the second circuit board and the silica gel cushion are covered and fixed by the metal connecting base between an inner bottom of the lampshade and an inner wall of the metal connecting base as further shown in FIG. 3, a side wall 11 and a bottom 12 of the metal connecting base are a contact electrode respectively, a bottom of the silica gel cushion is fitted with an inner bottom of the metal connecting base, the pin-type electrode pierces through the center of the silica gel cushion and extends out of a through hole at the bottom of the metal connecting base to form an extending portion 13, the extending portion and a contact electrode of the metal connecting base are connected by soldering tin, the conductive wire is contacted with an inner side wall of the metal connecting base, an engagement portion between the lampshade and the outer threaded connecting portion is provided with a waterproof groove 14, and the waterproof groove is internally provided with a waterproof rubber gasket 15. As the bottom of the silica gel cushion is fitted with the inner bottom of the metal connecting base, the bottom of the metal connecting base can realize the waterproof efficiency, and the waterproof groove and the waterproof rubber gasket can realize the waterproof efficiency on the upper opening of the metal connecting base, so that the invention reaches the waterproof efficiency entirely.

(6) A preferred embodiment, the silica gel cushion is provided with a circular table 16, and an outer edge of the circular table is contacted with and compressed with the inner side wall of the metal connecting base as further shown in FIG. 3. The waterproof property is enhanced by threaded connection and compression. The silica gel cushion is provided with a concave bottom 17, and an outer edge of the concave bottom is fitted and contacted with and compressed with the inner side wall of the metal connecting base; similarly, seamless connection is formed through the threaded connection and compression to enhance the waterproof property. the center of an upper surface of the silica gel cushion is provided with a sunken portion 18, the pin-type electrode pierces through the silica gel cushion from the sunken portion, the sunken portion is convenient for piercing, so that it is convenient to assemble and the efficiency is improved. Meanwhile, as silica gel has a heat dissipation property, the silica gel cushion also has the heat dissipation function, which can cool inside electronic elements and LED, so as to ensure and prolong the service lives thereof.

(7) In addition, the invention is not limited to the above implementation manners. Whereas the technical effects of the invention achieved by the almost same means shall all fall within the protection scope of the invention.