CN103545963A - Stator end electric shielding structure of synchronous generator - Google Patents
Stator end electric shielding structure of synchronous generator Download PDFInfo
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- CN103545963A CN103545963A CN201310512830.8A CN201310512830A CN103545963A CN 103545963 A CN103545963 A CN 103545963A CN 201310512830 A CN201310512830 A CN 201310512830A CN 103545963 A CN103545963 A CN 103545963A
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- stator
- ring
- shield ring
- synchronous generator
- end electric
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Abstract
The invention discloses a stator end electric shielding structure of a synchronous generator. The stator end electric shielding structure of the synchronous generator comprises an outer shielding ring, a cushion block, a stator coil, an inner shielding ring, a stator pressing ring and a stator tooth support. The stator pressing ring compresses the stator tooth support and is fixed on the end portion of a stator core through bolts, the inner shielding ring is fixed on the stator pressing ring through bolts, and the outer shielding ring is fixed with the inner shielding ring through bolts and the cushion block. The end portion of the stator coil is placed among the inner shielding ring, the outer shielding ring and the stator tooth support. The inner shielding ring, the outer shielding ring and the stator tooth support are made of nonmagnetic material copper. The stator end electric shielding structure of the synchronous generator is simple in structure and high in reliability, magnetic leakage on the end portion of the stator coil is reduced, heating of the stator pressing ring and heating of a rotor retaining ring are reduced, and the operation reliability of the synchronous generator is improved.
Description
Technical field
The present invention relates to synchronous generator, be specifically related to the stator end electric shielding structure for high-capacity and high-speed synchronous generator.
Background technology
In high-capacity and high-speed synchronous generator running, because electric current is larger, stator coil end can produce very large leakage field, and stator pressing ring and rotor end bell are permeability magnetic material, can compared with large induced current, generate heat because leakage field produces, when serious, can burn out stator pressing ring and rotor end bell.
Summary of the invention
The object of the invention is to address the above problem, a kind of synchronous generator stator end electric shielding structure is provided, not only manufacturing process is simple for this kind of structure, and has improved motor reliability of operation.
Technical scheme of the present invention is as follows:
An end electric shielding structure, comprises external shield ring, cushion block, stator coil, inner shield ring, stator pressing ring and stator tooth pressing plate; Stator pressing ring compresses stator tooth pressing plate and is bolted on stator core end, inner shield ring is bolted on stator pressing ring, external shield ring is by bolt and cushion block and inner shield ring handle and fixing, and stator coil end is placed between inner shield ring, external shield ring and stator tooth pressing plate.
Its further technical scheme is: described inner shield ring, external shield ring and stator tooth pressing plate all adopt non-magnetic material copper to become.
Useful technique effect of the present invention is:
The present invention is simple in structure, reliability is high, has reduced stator coil end leakage field, thereby reduces the heating of stator pressing ring and rotor end bell, has improved synchronous machine reliability of operation.
Advantage of the present invention will provide in embodiment description partly below, and part will become obviously from the following description, or recognize by practice of the present invention.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further.
As shown in Figure 1, the present invention includes external shield ring 1, cushion block 2, stator coil 3, inner shield ring 4, stator pressing ring 5 and stator tooth pressing plate 7.Stator pressing ring 5 compresses stator tooth pressing plate 7, and is fixed by bolts to stator core 6 ends.Inner shield ring 4 is fixed by bolts on stator pressing ring 5.External shield ring 1 use bolt and cushion block 2 and 4, inner shield ring and fixing.Stator coil 3 ends are placed between inner shield ring 4, external shield ring 1 and stator tooth pressing plate 7.
Inner shield ring 4, external shield ring 1 and stator tooth pressing plate 7 all adopt non-magnetic material copper to become, and have reduced stator coil 3 brow leakages, thereby reduce the heating of stator pressing ring 5 and rotor end bell, have improved motor reliability of operation.
Above-described is only the preferred embodiment of the present invention, the invention is not restricted to above embodiment.Be appreciated that the oher improvements and changes that those skilled in the art directly derive or associate without departing from the basic idea of the present invention, within all should thinking and being included in protection scope of the present invention.
Claims (2)
1. a synchronous generator stator end electric shielding structure, is characterized in that, comprises external shield ring (1), cushion block (2), stator coil (3), inner shield ring (4), stator pressing ring (5) and stator tooth pressing plate (7); Stator pressing ring (5) compresses stator tooth pressing plate (7) and is bolted on stator core (6) end, inner shield ring (4) is bolted on stator pressing ring (5), external shield ring (1) is by bolt and cushion block (2) and inner shield ring (4) with fixing, and stator coil (3) end is placed between inner shield ring (4), external shield ring (1) and stator tooth pressing plate (7).
2. synchronous generator stator end electric shielding structure according to claim 1, is characterized in that: described inner shield ring (4), external shield ring (1) and stator tooth pressing plate (7) all adopt non-magnetic material copper to become.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310512830.8A CN103545963A (en) | 2013-10-25 | 2013-10-25 | Stator end electric shielding structure of synchronous generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310512830.8A CN103545963A (en) | 2013-10-25 | 2013-10-25 | Stator end electric shielding structure of synchronous generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103545963A true CN103545963A (en) | 2014-01-29 |
Family
ID=49969132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310512830.8A Pending CN103545963A (en) | 2013-10-25 | 2013-10-25 | Stator end electric shielding structure of synchronous generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103545963A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106130257A (en) * | 2016-08-26 | 2016-11-16 | 哈尔滨电机厂有限责任公司 | stator end leakage magnetic flux barrier structure |
| CN107846116A (en) * | 2016-09-18 | 2018-03-27 | 德昌电机(深圳)有限公司 | Motor and electric machine assembly |
| CN110474516A (en) * | 2019-09-24 | 2019-11-19 | 上海电气集团上海电机厂有限公司 | A kind of superconducting motor is nonmagnetic tooth stator and coil fixing structure |
| CN111641277A (en) * | 2020-05-25 | 2020-09-08 | 东方电气集团东方电机有限公司 | Stator pressing ring of steam turbine generator |
| CN116155036A (en) * | 2023-04-19 | 2023-05-23 | 哈尔滨电机厂有限责任公司 | Composite ventilation stator end magnetic flux leakage shielding structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB898249A (en) * | 1959-08-13 | 1962-06-06 | Ass Elect Ind | Improvements relating to dynamo electric machines |
| US4054809A (en) * | 1976-02-27 | 1977-10-18 | General Electric Company | Stator core end magnetic shield for large A.C. machines |
| CN2291743Y (en) * | 1997-04-18 | 1998-09-16 | 陈丹 | Multi-functional shield electric machine |
| JP2008054405A (en) * | 2006-08-24 | 2008-03-06 | Hitachi Ltd | Turbine generator |
| CN102570639A (en) * | 2010-11-09 | 2012-07-11 | 通用电气公司 | Encapsulated stator assembly |
| CN103151858A (en) * | 2013-03-25 | 2013-06-12 | 哈尔滨电机厂有限责任公司 | Large-scale nuclear power half-speed steam turbine power generator |
-
2013
- 2013-10-25 CN CN201310512830.8A patent/CN103545963A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB898249A (en) * | 1959-08-13 | 1962-06-06 | Ass Elect Ind | Improvements relating to dynamo electric machines |
| US4054809A (en) * | 1976-02-27 | 1977-10-18 | General Electric Company | Stator core end magnetic shield for large A.C. machines |
| CN2291743Y (en) * | 1997-04-18 | 1998-09-16 | 陈丹 | Multi-functional shield electric machine |
| JP2008054405A (en) * | 2006-08-24 | 2008-03-06 | Hitachi Ltd | Turbine generator |
| CN102570639A (en) * | 2010-11-09 | 2012-07-11 | 通用电气公司 | Encapsulated stator assembly |
| CN103151858A (en) * | 2013-03-25 | 2013-06-12 | 哈尔滨电机厂有限责任公司 | Large-scale nuclear power half-speed steam turbine power generator |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106130257A (en) * | 2016-08-26 | 2016-11-16 | 哈尔滨电机厂有限责任公司 | stator end leakage magnetic flux barrier structure |
| CN107846116A (en) * | 2016-09-18 | 2018-03-27 | 德昌电机(深圳)有限公司 | Motor and electric machine assembly |
| CN110474516A (en) * | 2019-09-24 | 2019-11-19 | 上海电气集团上海电机厂有限公司 | A kind of superconducting motor is nonmagnetic tooth stator and coil fixing structure |
| CN110474516B (en) * | 2019-09-24 | 2024-05-14 | 上海电气集团上海电机厂有限公司 | Non-magnetic tooth stator and coil fixing structure of superconducting motor |
| CN111641277A (en) * | 2020-05-25 | 2020-09-08 | 东方电气集团东方电机有限公司 | Stator pressing ring of steam turbine generator |
| CN116155036A (en) * | 2023-04-19 | 2023-05-23 | 哈尔滨电机厂有限责任公司 | Composite ventilation stator end magnetic flux leakage shielding structure |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140129 |