Title:
LED BULB HAVING INTEGRALLY CONNECTED FILAMENT AND FILAMENT CONNECTION METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2019/090823
Kind Code:
A1
Abstract:
An LED bulb having an integrally connected filament (7) and a connection method of the filament (7). The LED bulb comprises a housing (6) and a cap (1). The cap (1) and the housing (6) are connected at an opening of the housing (6) to form a closed LED lamp structure. A filament (7) inside the housing (6) is connected to a stem (2) of the cap (1) by means of a connection post (4). The filament (7) and the connection post (4) are integrally connected by means of insertion. There are multiple independent filaments (7). The connection post (4) has two connection arms (5) arranged at a region where the filaments (7) are connected to the connection post (4). Two ends of the filament (7) are respectively inserted into connection recesses (10) in different connection arms (5), such that a connection capacitance formed at a region where the filament (7) is connected can be reduced, thereby preventing the filament (7) from breaking due to an excessively high temperature at a certain region, and extending service life of the filament (7). Moreover, provision of a refraction block (8) inside the LED bulb can effectively diffuse light, thereby increasing uniformity and softness of lighting, and providing lighting comfortable to a user.
Inventors:
SANG YONGSHU (CN)
LI YUNHE (CN)
LIU JUN
YE BING
LI YUNHE (CN)
LIU JUN
YE BING
Application Number:
PCT/CN2017/112224
Publication Date:
May 16, 2019
Filing Date:
November 22, 2017
Export Citation:
Assignee:
ANHUI SHILIN LIGHTING CO LTD (CN)
International Classes:
F21K9/232; F21V5/00; F21V17/16; F21V29/503; F21V29/85
Foreign References:
| CN204240113U | 2015-04-01 | |||
| CN2691043Y | 2005-04-06 | |||
| CN205350905U | 2016-06-29 | |||
| CN104570358A | 2015-04-29 | |||
| CN104485629A | 2015-04-01 | |||
| CN204176386U | 2015-02-25 | |||
| CN204756562U | 2015-11-11 | |||
| US4965490A | 1990-10-23 |
Attorney, Agent or Firm:
LIUAN ZHONGXIN INTELLECTUAL PROPERTY AGENT FIRM (GENERAL PARTNERSHIP) (CN)
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