Title:
OMNIDIRECTIONAL ILLUMINATING LED BULB
Document Type and Number:
WIPO Patent Application WO/2015/169254
Kind Code:
A1
Abstract:
An omnidirectional illuminating LED bulb, comprising a lamp cap (1), a bulb shell (3), a drive circuit (4), several LEDs (6), an insulating heat dissipation piece (2), a heat conduction column (5), a flexible circuit board (7) and an aluminium substrate (8), wherein the lamp cap (1) is fixedly connected to the bulb shell (3) through the insulating heat dissipation piece (2); the tail portion of the heat conduction column (5) is fixedly connected to the insulating heat dissipation piece (2); the upper portion of the heat conduction column (5) comprises a cylindrical surface (51), a top surface (52) and a conical surface (53); the cylindrical surface (51) and the conical surface (53) are cladded in the flexible circuit board (7); the aluminium substrate (8) is fixed to the top surface (52); the LEDs (6) are electrically connected to the flexible circuit board (7) and the aluminium substrate (8); and the LEDs (6) omnidirectionally illuminate by taking the top surface (52), the cylindrical surface (51) and the conical surface (53) as reference surfaces, and conduct heat and dissipate heat through the flexible circuit board (7), the aluminium substrate (8), the heat conduction column (5), the insulating heat dissipation piece (2) and the lamp cap (1). The LED bulb has good heat dissipation and uniform illumination.
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Inventors:
WEI YONGGANG (CN)
ZHANG SUMIN (CN)
WANG XIAOFENG (CN)
ZHANG SUMIN (CN)
WANG XIAOFENG (CN)
Application Number:
PCT/CN2015/078553
Publication Date:
November 12, 2015
Filing Date:
May 08, 2015
Export Citation:
Assignee:
CE LIGHTING LTD (CN)
International Classes:
F21S2/00; F21V17/10; F21V29/00; F21Y101/02
Foreign References:
| CN203823531U | 2014-09-10 | |||
| CN102287655A | 2011-12-21 | |||
| CN102128370A | 2011-07-20 | |||
| CN203052306U | 2013-07-10 | |||
| US20100097790A1 | 2010-04-22 |
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