Title:
CONNECTION STRUCTURE FOR ELECTRIC GENERATOR ROTATING SHAFT AND EXTERNAL SLIP RING SHAFT
Document Type and Number:
WIPO Patent Application WO/2024/087934
Kind Code:
A1
Abstract:
The present invention relates to the field of steam turbine generator static magnetic excitation technology, and provided is a connection structure for an electric generator rotating shaft and an external slip ring shaft, which comprises: a rotating shaft and a slip ring shaft which are coaxially mated, a mating face having a connection cavity; an insulating assembly, which is arranged in the connection cavity and comprises insulating parts which are separately connected to the rotating shaft and the sliding ring shaft, the insulating parts comprising two mounting surfaces; and a plurality of flexible conductive parts, which are arranged on the mounting surfaces and are in communication with conductive rods, a gap being maintained between the flexible conductive parts connected to a rotating shaft-side conductive rod and the flexible conductive parts connected to a sliding ring shaft-side conductive rod, the gap being filled with an electric connection block, and the rotating shaft-side flexible conductive parts and the sliding ring shaft-side flexible conductive parts establishing conduction; and a heat dissipation structure, which passes from an outer surface of the sliding ring shaft or the rotating shaft to the connection cavity. In the present invention, a magnetic excitation conductive structure is arranged within a mating face of the shafts, achieving a good protective effect on the magnetic excitation structure, while also guaranteeing reliable electrical cooperation; excessive internal temperatures are prevented by means of the heat dissipation structure, and therefore the reliability of the connection structure as a whole is improved.
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Inventors:
GUAN YONGSHENG (CN)
YANG DI (CN)
WANG YONG (CN)
LU YONGYAO (CN)
QIN CHUAN (CN)
JIANG QUNXIONG (CN)
LI DIAN (CN)
YANG DI (CN)
WANG YONG (CN)
LU YONGYAO (CN)
QIN CHUAN (CN)
JIANG QUNXIONG (CN)
LI DIAN (CN)
Application Number:
PCT/CN2023/119247
Publication Date:
May 02, 2024
Filing Date:
September 15, 2023
Export Citation:
Assignee:
DONGFANG ELECTRIC MACHINERY CO LTD (CN)
International Classes:
H02K9/28; H01R39/14; H02K13/00
Foreign References:
| CN115395335A | 2022-11-25 | |||
| CN205105053U | 2016-03-23 | |||
| CN101651385A | 2010-02-17 | |||
| CN102611253A | 2012-07-25 | |||
| EP3767804A1 | 2021-01-20 | |||
| GB2078017A | 1981-12-23 | |||
| US4618793A | 1986-10-21 |
Attorney, Agent or Firm:
CHENGDU JIUDING TIANYUAN INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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