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Heat sink for LED bulbs

a technology of led bulbs and heat sinks, which is applied in the direction of heating apparatus, semiconductor devices for light sources, planar light sources, etc., can solve the problems of too high cost of lamps and manufacturing processes, and achieve the effects of low cost of manufacturing led lamps, less carbon emission, and rapid heat scattering

Inactive Publication Date: 2012-01-19
HUANG CHEN LUNG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0005]The object of this invention is to offer a heat sink for LED bulbs, with a cost reduction to make green eco-friendly LED lamps popular enough so as to lessen carbon emission.
[0006]The heat sink for LED bulbs in the invention is mainly provided with a lamp casing coated with a heat dispersing paint to swiftly scatter heat produced by LED bulbs, achieving a low cost of manufacturing LED lamps.

Problems solved by technology

However, the heat dispersing base and the heat conducting plate have to be primarily shaped with aluminum and then finely finished by finishing machines before becoming final products.
Although the heat dispersing base and the heat conducting plate have an advantage of dispersing heat quickly due to being made of aluminum, they require complicated manufacturing processes to step up cost, posing LED lamps too costly to be popular.

Method used

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  • Heat sink for LED bulbs
  • Heat sink for LED bulbs
  • Heat sink for LED bulbs

Examples

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Embodiment Construction

[0015]As shown in FIGS. 1-3, a preferred embodiment of a heat sink for LED bulbs in the present invention at least includes a base 1, a base connector 2, a lamp casing 3, a heat conducting plate 4, a circuit board 5 and a bulb hood 6.

[0016]The base 1 is provided with male threads 10 used to engage with a socket connected to a power, and female threads 11 to engage with the base connector 2.

[0017]The base connector 2 is provided with male threads 20 for engaging with the female threads 11 of the base 1, and a chamber 21 possessing an upper circumferential wall 22 combined with a chamber 35 of the lamp casing 3 to accommodate a power module. In addition, the base connector 2 is also provided with an extending circumferential wall 23, plural locking projections 24 built on the extending circumferential wall 23 to interlock with the lamp casing 3, and an outer circumferential wall 25.

[0018]The lamp casing 3 is formed like a trumpet, provided with an inner engaging circumferential wall 3...

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Abstract

A heat sink for LED bulbs includes a base having male threads engaged with a socket connected to a power and female threads engaged with male threads of a base connector. The base connector has a chamber co-working with a chamber of a lamp casing to accommodate a controller, and locking projections to fix the lamp casing. The lamp casing is formed as a trumpet, having plural positioning projections and an outer surface coated with a heat dispersing paint to scatter heat created by LED bulbs. A heat conducting plate is placed in a top circumference of the lamp casing, interlocked with the positioning projections. A circuit board has a positioning hole locked upward by a bar of the heat conducting plate, with LED bulbs laid on the circuit board. A bulb hood is capped on the lamp casing.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]This invention relates to a heat sink for LED bulbs, particularly to one provided with a lamp casing having an outer surface coated with a heat dispersing paint to quickly scatter heat created by LED bulbs to the air outside LED lamps, also prolonging service life of LED bulbs.[0003]2. Description of the Prior Art[0004]Commonly, as disclosed in Taiwan Patent No. M402387, a conventional heat sink for LED bulbs includes a heat dispersing base made of aluminum, having a through hole provided with plural air grooves communicated to the outer wall of one end. Located on the outer wall of the heat dispersing base are plural heat dispersing blades, with a heat dispersing groove formed between every two adjacent heat dispersing blades. The conventional heat sink also includes a heat conducting plate fixed on the heat dispersing base and made of aluminum as well. The heat conducting plate is provided with a slot formed in one si...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F21V29/00
CPCF21K9/1355F21V3/00F21V17/16F21V17/164F21V19/0055F21V29/83F21Y2101/02F21Y2105/00F21Y2105/001F21V29/20F21V29/507F21V23/02F21Y2105/10F21K9/23F21Y2115/10F21V29/503F21V29/70
Inventor HUANG, CHEN-LUNGHUANG, CHUAN-PAN
Owner HUANG CHEN LUNG
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