Title:
LIGHT BULB HAVING LIGHT GUIDE COLUMN
Document Type and Number:
WIPO Patent Application WO/2020/155433
Kind Code:
A1
Abstract:
Disclosed in the present invention is a light bulb having a light guide column, said light bulb comprising a lamp cover, a light-emitting assembly, a light guide column, a lamp cap-integrated heat dissipating piece, and a protective casing. The lamp cap-integrated heat dissipating piece comprises a standard lamp cap segment and a flared connection segment, the standard lamp cap segment and the flared connection segment being integrally formed from a metal piece. A bottom portion of the lamp cover is fixedly connected to an interface in the flared connection segment of the lamp cap-integrated heat dissipating piece, and the light-emitting assembly is fixedly mounted inside the lamp cap-integrated heat dissipating piece, a light source thereof facing towards the lamp cover side. The light guide column is positioned inside the lamp cover and one end thereof is near to the light source. The protective casing covers the outside of the connection segment. Relative to the technical solution that existing lamp caps must be arranged so as to be blocked off from connection seats, the heat dissipation capacity of light bulbs of the same specifications in the present technical solution is raised 30-80%, helping to reduce the temperature of lamp beads and extending the lifespan of light bulbs. At the same time, the lamp cap-integrated heat dissipating piece of the present invention is able to be directly fixedly connected to the lamp cover, simplifying the process of enclosing the interior space of the light bulb.
Inventors:
LIU XIAOFEI (CN)
LIANG MINGBIN (CN)
ZHAO JUNJIE (CN)
WEI BIN (CN)
ZHU YIGUANG (CN)
LIANG MINGBIN (CN)
ZHAO JUNJIE (CN)
WEI BIN (CN)
ZHU YIGUANG (CN)
Application Number:
PCT/CN2019/084162
Publication Date:
August 06, 2020
Filing Date:
April 25, 2019
Export Citation:
Assignee:
FOSHAN ELECTRICAL & LIGHTING (CN)
International Classes:
F21K9/61; F21V8/00; F21V29/71; F21Y115/10
Foreign References:
| CN109630919A | 2019-04-16 | |||
| CN204853043U | 2015-12-09 | |||
| CN204420668U | 2015-06-24 | |||
| CN201739854U | 2011-02-09 | |||
| CN104676329A | 2015-06-03 | |||
| JP2003151305A | 2003-05-23 |
Attorney, Agent or Firm:
JIAQUAN IP LAW FIRM (CN)
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