CN102684440A - Low-speed permanent magnet synchronous generator - Google Patents
Low-speed permanent magnet synchronous generator Download PDFInfo
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- CN102684440A CN102684440A CN2011102172070A CN201110217207A CN102684440A CN 102684440 A CN102684440 A CN 102684440A CN 2011102172070 A CN2011102172070 A CN 2011102172070A CN 201110217207 A CN201110217207 A CN 201110217207A CN 102684440 A CN102684440 A CN 102684440A
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- permanent magnet
- yoke
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Abstract
The invention discloses a low-speed permanent magnet synchronous generator, which comprises a stator and a rotor. An external rotor design is adopted. The stator comprises a stator support body, a stator core and a stator winding, and is fixed on a base through the stator support body. Uniformly distributed grooves are circumferentially reserved on the outer circle of the stator core. The stator winding is embedded into the grooves, and is distributed according to a three-phase rule. The rotor comprises a rotor bracket, a rotor yoke, a rotating shaft and a plurality of permanent magnet poles, wherein the rotating shaft is assembled on the rotor bracket; the rotor yoke is sleeved outside the rotor bracket; and the permanent magnet yokes are uniformly distributed around the inner surface of the rotor yoke. The stator also comprises an amorphous alloy thin barrel arranged on the outer circle of the stator. The rotor also comprises an annular nonmagnetic sleeve ring arranged on the inner lateral surfaces of the permanent magnets. An air gap of a motor is formed between the amorphous alloy thin barrel on the outer circle of the stator and the nonmagnetic sleeve ring of the rotor, and is exposed in air, and the surfaces of the stator and the rotor are cooled by utilizing airflow.
Description
Technical field
The present invention relates to a kind of air gap place radiating condition that improved, can weaken the efficient permanent magnet synchronous generator of slot effect.
Background technology
At present, the known low-speed permanent-magnet generator designs scheme that is applied to wind power generation all exists permanent magnet or various defectives such as the armature radiating condition is bad, permanent magnet demagnetizes easily, slot effect is bigger to some extent.
Summary of the invention
In order to overcome the deficiency of existing low-speed permanent-magnet synchronous generator; The present invention provides a kind of low-speed permanent-magnet synchronous generator design that is applicable to wind power generation; This scheme can not only be improved air gap place radiating condition; Reduce the permanent magnet working temperature, and can weaken slot effect significantly, technology difficulty and production cost do not increase considerably yet simultaneously.
Technical scheme of the present invention is: a kind of low-speed permanent-magnet synchronous generator is provided, comprises stator and rotor, said rotor is set in the said stator outside; Described stator comprises stator support body, hollow cylinder stator core, stator winding; Said stator is fixed on the base through the supporter of said stator, and the cylindrical of said stator core has equally distributed groove along circumference, and said stator winding embeds in said groove; Said stator winding is to distribute by the three-phase rule; Said rotor comprises rotor field spider, rotor yoke, rotating shaft and a plurality of permanent magnet pole, and said rotating shaft is assemblied on the said rotor field spider, and said rotor yoke cover is arranged at outside the said rotor field spider; The rotate inner surface of sub-yoke of a plurality of said permanent magnet poles evenly distributes; Said stator also comprises the amorphous alloy thin tube that is arranged at said stator cylindrical, and said rotor also comprises the annular non magnetic collar that is arranged at the permanent magnet medial surface, is the air gap of motor between the described amorphous alloy thin tube and the described non magnetic collar.
During enforcement, described air gap communicates with ambient atmosphere.
Compared with prior art, beneficial effect of the present invention is:
Generator of the present invention is because the permanent magnet medial surface is provided with the annular non magnetic collar of being made by high, the corrosion resistant nonmagnetic substance of thermal conductivity; And the stator cylindrical is provided with the thin tube that adopts the non-crystaline amorphous metal coil sheet to process; Between the described amorphous alloy thin tube and the described non magnetic collar is the air gap of motor; Stator, rotor are enclosed construction, and air gap is to be opened in airbornely, is cooled off by air-flow near stator, the rotor surface of air gap.Because non-crystaline amorphous metal has magnetic permeability height, corrosion-resistant, characteristic such as mechanical performance is good, at the stator cylindrical amorphous alloy thin tube is installed, both can weaken cogging torque, can guarantee that when improving radiating effect stator is not corroded again.Adopt low-speed permanent-magnet synchronous generator of the present invention not only can improve the air gap radiating condition; Can also weaken cogging torque; Simultaneously owing to used the corrosion-resistant material low-speed permanent-magnet synchronous generator of the present invention can also be environmental works such as coastal waters, and technology difficulty and production cost can not rise significantly.
Description of drawings
Fig. 1 is a preferred embodiments of low-speed permanent-magnet synchronous generator of the present invention.
Description of reference numerals: 1-rotor yoke; The 2-permanent magnet pole; The 3-non-magnetic ring; 4-amorphous alloy thin tube; The 5-stator core; The 6-air gap.
Embodiment
For shape of the present invention, structure and characteristics can be understood better, below will enumerate preferred embodiment and combine accompanying drawing to be elaborated.
In Fig. 1, a kind of low-speed permanent-magnet synchronous generator comprises stator and rotor; Rotor is enclosed within the stator outside; Described stator comprises stator support body, hollow cylinder stator core 5, stator winding, and stator is fixed on the base through the stator support body, and the cylindrical of this stator core 5 has equally distributed groove along circumference; In this groove, embedding this stator winding; This winding is to distribute by the three-phase rule, and said rotor comprises rotor field spider, rotor yoke 1, rotating shaft and a plurality of permanent magnet pole 2, and said rotating shaft is assemblied on the said rotor field spider; Said rotor yoke 1 is placed in outside the said rotor field spider; The rotate inner surface of sub-yoke 1 of a plurality of said permanent magnet poles 2 evenly distributes, and said stator also comprises the amorphous alloy thin tube 4 that is arranged at said stator cylindrical, and said rotor also comprises the annular non magnetic collar 3 that is arranged at permanent magnet 2 medial surfaces; The non magnetic collar 3 of described annular is high by thermal conductivity, corrosion resistant nonmagnetic substance (for example stainless steel, aluminium alloy etc.) is made; Be the air gap 6 of motor between the described amorphous alloy thin tube 4 and the described non magnetic collar 3, this air gap 6 communicates with ambient atmosphere, and the air-flow in the said air gap 6 plays the effect of the inner surface of said stator external surface of cooling and said rotor.
This shows that generator adopts outer-rotor structure, stator, rotor are enclosed construction, and air gap 6 is to be opened in airbornely, is cooled off by air-flow near stator, the rotor surface of air gap 6.The non magnetic collar 3 of permanent magnet 2 medial surfaces is high by thermal conductivity, corrosion resistant nonmagnetic substance (for example stainless steel, aluminium alloy etc.) is made, and the radiating effect that had so both improved rotor has guaranteed that also rotor is not corroded; Because non-crystaline amorphous metal has magnetic permeability height, corrosion-resistant, characteristic such as mechanical performance is good, at the stator cylindrical amorphous alloy thin tube 4 is installed, not only weaken cogging torque, improved radiating effect, guaranteed that also stator is not corroded.
The above description of this invention is illustrative, and nonrestrictive, and those skilled in the art is understood, and within spirit that claim limits and scope, can carry out many modifications, variation or equivalence to it, but they will fall in protection scope of the present invention all.
Claims (2)
1. a low-speed permanent-magnet synchronous generator comprises stator and rotor, and said rotor is set in the said stator outside; Described stator comprises stator support body, stator core, stator winding, and said stator is fixed on the base through said stator support body, and the cylindrical of said stator core has equally distributed groove along circumference; Said stator winding embeds in said groove; Said stator winding is to distribute by the three-phase rule, and said rotor comprises rotor field spider, rotor yoke, rotating shaft and a plurality of permanent magnet pole, and said rotating shaft is assemblied on the said rotor field spider; Said rotor yoke is sheathed on outside the said rotor field spider; The rotate inner surface of sub-yoke of a plurality of said permanent magnet poles evenly distributes, and it is characterized in that said stator also comprises the amorphous alloy thin tube that is arranged at said stator cylindrical; Said rotor also comprises the annular non magnetic collar that is arranged at the permanent magnet medial surface, is the air gap of motor between the described amorphous alloy thin tube and the described non magnetic collar.
2. low-speed permanent-magnet synchronized engine as claimed in claim 1 is characterized in that described air gap communicates with ambient atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110217207.0A CN102684440B (en) | 2011-07-29 | 2011-07-29 | Low-speed permanent magnet synchronous generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110217207.0A CN102684440B (en) | 2011-07-29 | 2011-07-29 | Low-speed permanent magnet synchronous generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102684440A true CN102684440A (en) | 2012-09-19 |
| CN102684440B CN102684440B (en) | 2014-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110217207.0A Active CN102684440B (en) | 2011-07-29 | 2011-07-29 | Low-speed permanent magnet synchronous generator |
Country Status (1)
| Country | Link |
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| CN (1) | CN102684440B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451888A (en) * | 2016-11-30 | 2017-02-22 | 安徽同华新能源动力股份有限公司 | Three-phase asynchronous motor |
| WO2019113882A1 (en) * | 2017-12-14 | 2019-06-20 | 广东永丰智威电气有限公司 | Direct-current brushless low-speed electric motor, and manufacturing process involving combining fan, magnet and yoke strip |
| CN111313583A (en) * | 2019-12-24 | 2020-06-19 | 天津深之蓝海洋设备科技有限公司 | Permanent magnet rotor structure of underwater motor, underwater motor and underwater equipment |
| CN113964986A (en) * | 2021-12-21 | 2022-01-21 | 常州神力电机股份有限公司 | Super-large-specification wind power rotor workpiece and intelligent assembling system and method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5252877A (en) * | 1990-06-29 | 1993-10-12 | Kabushiki Kaisha Toshiba | Slot insulating magnetic wedges |
| CN1126900A (en) * | 1994-06-07 | 1996-07-17 | 陈启星 | Magnetic sleeve-type motor and ammonia-refrigerated closed compressor |
| US5671524A (en) * | 1994-09-19 | 1997-09-30 | Electric Power Research Institute, Inc. | Magnetic annealing of amorphous alloy for motor stators |
| CN1205567A (en) * | 1997-07-11 | 1999-01-20 | 陈启星 | Magnetic sleeve electromachine |
| EP1037365A1 (en) * | 1999-03-12 | 2000-09-20 | Isuzu Ceramics Research Institute Co., Ltd. | Motor generator developing high torque |
| JP3444437B2 (en) * | 1994-04-11 | 2003-09-08 | 株式会社デンソー | Motor and method of manufacturing the same |
| CN1825737A (en) * | 2005-02-25 | 2006-08-30 | 株式会社日立制作所 | Permanent magnet type electric rotating machine |
| CN200943442Y (en) * | 2006-08-26 | 2007-09-05 | 德州联合石油机械有限公司 | Helicoid drill for saturated salt-water-resistant drilling well |
| CN101446291A (en) * | 2007-11-27 | 2009-06-03 | 沈阳工业大学 | High-efficiency shield pump |
| CN102013744A (en) * | 2009-09-07 | 2011-04-13 | 株式会社安川电机 | Rotating electrical machine and its manufacturing method |
-
2011
- 2011-07-29 CN CN201110217207.0A patent/CN102684440B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5252877A (en) * | 1990-06-29 | 1993-10-12 | Kabushiki Kaisha Toshiba | Slot insulating magnetic wedges |
| JP3444437B2 (en) * | 1994-04-11 | 2003-09-08 | 株式会社デンソー | Motor and method of manufacturing the same |
| CN1126900A (en) * | 1994-06-07 | 1996-07-17 | 陈启星 | Magnetic sleeve-type motor and ammonia-refrigerated closed compressor |
| US5671524A (en) * | 1994-09-19 | 1997-09-30 | Electric Power Research Institute, Inc. | Magnetic annealing of amorphous alloy for motor stators |
| CN1205567A (en) * | 1997-07-11 | 1999-01-20 | 陈启星 | Magnetic sleeve electromachine |
| EP1037365A1 (en) * | 1999-03-12 | 2000-09-20 | Isuzu Ceramics Research Institute Co., Ltd. | Motor generator developing high torque |
| CN1825737A (en) * | 2005-02-25 | 2006-08-30 | 株式会社日立制作所 | Permanent magnet type electric rotating machine |
| CN200943442Y (en) * | 2006-08-26 | 2007-09-05 | 德州联合石油机械有限公司 | Helicoid drill for saturated salt-water-resistant drilling well |
| CN101446291A (en) * | 2007-11-27 | 2009-06-03 | 沈阳工业大学 | High-efficiency shield pump |
| CN102013744A (en) * | 2009-09-07 | 2011-04-13 | 株式会社安川电机 | Rotating electrical machine and its manufacturing method |
Non-Patent Citations (1)
| Title |
|---|
| 王金奎等: "非晶磁性槽楔在电机修理改造中的应用", 《电气时代》, no. 1, 31 January 1995 (1995-01-31), pages 15 - 20 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451888A (en) * | 2016-11-30 | 2017-02-22 | 安徽同华新能源动力股份有限公司 | Three-phase asynchronous motor |
| WO2019113882A1 (en) * | 2017-12-14 | 2019-06-20 | 广东永丰智威电气有限公司 | Direct-current brushless low-speed electric motor, and manufacturing process involving combining fan, magnet and yoke strip |
| CN111313583A (en) * | 2019-12-24 | 2020-06-19 | 天津深之蓝海洋设备科技有限公司 | Permanent magnet rotor structure of underwater motor, underwater motor and underwater equipment |
| CN113964986A (en) * | 2021-12-21 | 2022-01-21 | 常州神力电机股份有限公司 | Super-large-specification wind power rotor workpiece and intelligent assembling system and method thereof |
| CN113964986B (en) * | 2021-12-21 | 2022-03-15 | 常州神力电机股份有限公司 | Super-large-specification wind power rotor workpiece and intelligent assembling system and method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102684440B (en) | 2014-07-09 |
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