Title:
SWITCHABLE PLUG-IN LAMP BASE
Document Type and Number:
WIPO Patent Application WO/2021/138978
Kind Code:
A1
Abstract:
The present invention relates to the field of lamp illumination, and disclosed is a switchable plug-in lamp base. A movable electric connecting column portion of the switchable plug-in lamp base of the present invention movably performs state switching on a mounting cover; when the movable electric connecting column portion is in a first state, two fixed electric connecting columns and the movable electric connecting column portion work in conjunction with each other to match a four-hole type lamp holder; when the movable electric connecting column portion is in a second state, the two fixed electric connecting columns can directly match a two-hole lamp holder, the purpose of switching between a two-pin lamp base and a four-pin lamp base is implemented by means of the movable electric connecting column portion, the structure is simple, and the operation is easy.
Inventors:
GAO SHANFU (CN)
Application Number:
PCT/CN2020/076343
Publication Date:
July 15, 2021
Filing Date:
February 24, 2020
Export Citation:
Assignee:
SHANGHAI DANGOO ELECTRONICS CO LTD (CN)
International Classes:
F21S2/00; F21V21/002; F21V23/06
Domestic Patent References:
| WO2002084812A1 | 2002-10-24 | |||
| WO2017127785A1 | 2017-07-27 |
Foreign References:
| CN111140825A | 2020-05-12 | |||
| US9913330B2 | 2018-03-06 | |||
| US20090061668A1 | 2009-03-05 | |||
| US20140120750A1 | 2014-05-01 | |||
| CN207459306U | 2018-06-05 | |||
| CN107023811A | 2017-08-08 |
Attorney, Agent or Firm:
SHANGHAI SHENXIN LAW FIRM (CN)
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