WO2009006777A1 - Structure de ventilateur de refroidissement dans une machine électrique à aimants permanents - Google Patents

Structure de ventilateur de refroidissement dans une machine électrique à aimants permanents Download PDF

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Publication number
WO2009006777A1
WO2009006777A1 PCT/CN2008/000768 CN2008000768W WO2009006777A1 WO 2009006777 A1 WO2009006777 A1 WO 2009006777A1 CN 2008000768 W CN2008000768 W CN 2008000768W WO 2009006777 A1 WO2009006777 A1 WO 2009006777A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
permanent magnet
generator
ring
fan structure
Prior art date
Application number
PCT/CN2008/000768
Other languages
English (en)
Chinese (zh)
Inventor
Henglin Xiao
Original Assignee
Wuxi Kipor Power Co., Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuxi Kipor Power Co., Ltd filed Critical Wuxi Kipor Power Co., Ltd
Publication of WO2009006777A1 publication Critical patent/WO2009006777A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft

Definitions

  • the present invention relates to a cooling fan structure for a permanent magnet generator, and more particularly to a cooling fan structure of a novel high power permanent magnet generator.
  • the permanent magnet generator When the permanent magnet generator is working, due to the impedance of its stator coil, heat will be emitted when the current passes, and the temperature inside the motor body is high, especially the current high-power diesel digital generator set, which is equipped with a permanent magnet generator. Due to the miniaturization of the shape, there is generally no cooling fan, but the air is freely circulated through the chassis to cool the generator, so that the unit cannot run continuously for a long time. Since there is no direct cooling of the generator, the heat generated by the stator coils cannot be quickly discharged, so that the temperature of the rotor with the permanent magnets rises rapidly. For the permanent magnet generator, the influence factor of the permanent magnet performance is determined by the priming temperature. Therefore, in order to make the permanent magnet performance stable and reduce the irreversible change, the temperature control is a problem to be solved.
  • sintered NdFeB has a large magnetic energy product and intrinsic coercive force, it is widely used in high-power permanent magnet generators, but sintered NdFeB Residual magnetic induction temperature coefficient of magnet (-0.08%/°C ⁇ -0.13%/°C) and temperature coefficient of intrinsic coercivity
  • the object of the present invention is to overcome the above-mentioned deficiencies, thereby providing a cooling fan structure of a permanent magnet generator, which drives the blades to rotate by the rotation of the rotor, generates cooling air to force cooling of the permanent magnet generator, and greatly improves the permanent magnet.
  • the cooling effect of the generator stator coil and the permanent magnet rotor core ensures the continuous operation reliability of the permanent magnet generator.
  • the invention comprises a generator rotor, characterized in that a wind blade ring and a pressure ring are mounted on the rotor of the generator, the wind
  • the leaf ring and the pressing ring are integrally connected with the rotor core, and a permanent magnet is installed in the rotor core, and the upper blade of the blade ring and the rotor core with the permanent magnet are respectively disposed on both sides of the bottom plate of the blade ring.
  • the heat dissipation in the cavity is facilitated, and the exhaust hole of the engine flywheel housing of the generator is installed on the radial outer circular surface, and the ventilation hole of the generator rotor Form a cooling duct.
  • the bottom plate is provided with two or more fan blades.
  • the bottom plate is provided with two or more mounting holes.
  • the bottom plate is made of a low magnetic permeability material.
  • the other end of the fan blade on the blade ring connected to the bottom plate may be connected by a circular plate.
  • the invention adopts a self-contained centrifugal air blade ring provided on the rotor of the generator, and sucks cold air from the vent hole of the rotor to directly air-cool the generator rotor core and the stator coil, maintains a smooth air flow, and reduces the heat of the stator.
  • the heat conduction of the permanent magnet on the rotor while taking away the heat that has been conducted to the rotor, has a good air-cooling effect, and ensures the continuous working reliability of the permanent magnet generator; since the bottom ring of the wind blade is made of a material with low magnetic permeability , the permanent magnet of the rotor acts as a magnetic barrier, which improves the power generation efficiency of the generator.
  • FIG. 1 is a schematic view showing the structure of a wind blade provided on a bottom plate of the present invention.
  • FIG. 2 is a schematic exploded view of the permanent magnet generator rotor of the present invention.
  • FIG 3 is a schematic view of a permanent magnet generator rotor assembly of the present invention.
  • FIG. 4 is a schematic view of the permanent magnet generator assembly of the present invention.
  • the invention mainly consists of a wind blade ring 1, a pressure ring 2, a permanent magnet 3, a rotor core 4, a generator rotor 5, a generator stator 6, a bottom plate 7, a fan blade 8 and a mounting hole 9.
  • the present invention adopts a vent hole on the generator rotor 5, and the rotor ring 5 and the pressure ring 2 are mounted on the generator rotor 5, and the wind blade ring 1 and the pressure ring 2 are bolted.
  • the rotor core 4 is integrally connected with the rotor core 4, and the permanent magnet 3 is mounted on the protective rotor core 4.
  • the rotor core 1 and the rotor core 4 with the permanent magnet 3 are respectively disposed on both sides of the bottom plate 7, and the fan blades 8 on the fan ring ring are
  • the other end of the connection between the bottom plates 7 may be connected by a circular plate.
  • the air ring 1 and the bottom plate 7 can be connected by a circular plate.
  • a plurality of fan blades 8 are disposed on the air blade ring bottom plate 7.
  • the bottom plate 7 is provided with a plurality of mounting holes 9.
  • the bottom plate 7 is made of a low magnetic permeability material.
  • a centrifugal fan is formed by the rotation of the generator rotor.
  • a cavity is formed between the generator rotor 5 and the engine flywheel housing. In order to accelerate the gas flow in the cavity formed by the engine flywheel housing and the generator, the heat dissipation in the cavity is facilitated, and the radial outer surface of the engine flywheel housing is opened.
  • the venting hole forms a cooling duct with the venting hole of the generator rotor.
  • the engine and generator stator inside the body are two main heat-generating components. During the operation, they generate a large amount of heat. If the cooling cannot be performed effectively, it will inevitably affect the normal operation of the permanent magnet generator. Operation, in the present invention, the engine flywheel housing and the generator stator are cooled by air cooling, and a smooth cooling air passage is formed inside the body.
  • the rotor of the generator is driven by the rotation of the crankshaft of the engine, so that the wind pressure is formed in the cavity between the rotor of the generator and the flywheel casing of the engine due to the rotation of the upper rotor ring of the generator rotor. Air enters the low-pressure zone in the cavity through the vent hole on the rotor of the generator.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

L'invention concerne une structure de ventilateur de refroidissement dans des machines électriques à aimants permanents, en particulier les machines à haute puissance. Ladite structure de ventilateur comprend une bague de support de pales (1) et une bague de pression (2), ces deux bagues étant montées sur le rotor (5) de la machine et étant fixées au noyau du rotor (4) pour former un bloc unitaire, ledit noyau de rotor (4) étant chargé d'aimants permanents (3), les pales (8) de la bague de support de pales (1) étant fixées sur une face de la plaque de base (7) de la bague support de pales et le noyau de rotor (4) étant fixé sur l'autre face de la plaque. Ladite plaque de base (7) est constituée d'un matériau ayant une faible conductivité magnétique et a un effet de magnétorésistance sur les aimants permanents (3). Grâce à la bague de support de pales (1) centrifuge montée sur le rotor, de l'air de refroidissement est pompé vers le rotor (5) et le stator (6) directement par les ouvertures de ventilation du rotor, et l'effet de refroidissement peut être augmenté.
PCT/CN2008/000768 2007-07-11 2008-04-15 Structure de ventilateur de refroidissement dans une machine électrique à aimants permanents WO2009006777A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNA2007100237820A CN101127468A (zh) 2007-07-11 2007-07-11 一种永磁发电机的冷却风扇结构
CN200710023782.0 2007-07-11

Publications (1)

Publication Number Publication Date
WO2009006777A1 true WO2009006777A1 (fr) 2009-01-15

Family

ID=39095427

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2008/000768 WO2009006777A1 (fr) 2007-07-11 2008-04-15 Structure de ventilateur de refroidissement dans une machine électrique à aimants permanents

Country Status (2)

Country Link
CN (1) CN101127468A (fr)
WO (1) WO2009006777A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2525143A (en) * 2014-01-06 2015-10-21 Spinetic Energy Ltd A generator
CN106100290A (zh) * 2016-08-17 2016-11-09 株洲百创节能科技有限责任公司 永磁耦合器旋风冷却结构
CN109980892A (zh) * 2019-04-13 2019-07-05 宿州迅驰电子科技有限公司 一种音圈马达

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102255458A (zh) * 2010-05-17 2011-11-23 福建福安闽东亚南电机有限公司 无前端盖的单轴承无刷同步发电机
CN104753254A (zh) * 2015-03-04 2015-07-01 苏州通润驱动设备股份有限公司 永磁同步电机及包含有该永磁同步电机的螺杆压缩机
CN105275870A (zh) * 2015-11-23 2016-01-27 盐城市广域机电有限公司 一种适用于小型汽油数码变频发电机和增程发电机的冷却风扇
CN112371681B (zh) * 2020-11-04 2022-03-08 西安建筑科技大学 一种旋流排风装置及***
CN113799596A (zh) * 2021-10-14 2021-12-17 湖南道依茨动力有限公司 集成发电的冷却组件和车辆
CN115276320A (zh) * 2022-06-21 2022-11-01 扬州易特普动力科技有限公司 基于导向隔离的发电机组吸附式永磁发电机冷却装置
CN117173844B (zh) * 2023-11-02 2024-03-08 南通美莱工业智能科技有限公司 一种具备防潮功能的led声光报警装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000217321A (ja) * 1999-01-25 2000-08-04 Kokusan Denki Co Ltd アウタ―ロ―タ型磁石発電機
CN2414234Y (zh) * 2000-03-22 2001-01-10 台达电子工业股份有限公司 电扇的复合式扇叶
US6278207B1 (en) * 1999-12-24 2001-08-21 Minebea Co., Ltd. Blower
US20020053838A1 (en) * 2000-05-30 2002-05-09 Kazuma Okuda Outer rotor type motor / generator
US20020179069A1 (en) * 2001-05-29 2002-12-05 Tatsuo Kobayashi Flywheel magneto generator
CN1627892A (zh) * 2003-09-16 2005-06-15 索尼株式会社 冷却装置和电子设备
CN2836326Y (zh) * 2003-06-17 2006-11-08 布莱克和戴克公司 具有双通路气流冷却装置的发电机及其方法
WO2006120109A1 (fr) * 2005-05-10 2006-11-16 Siemens Vdo Automotive Ag Machine electrique
WO2007085125A1 (fr) * 2006-01-26 2007-08-02 Hangao Zhao Ventilateur combiné pourvu de pales à flux axial et à flux transversal

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000217321A (ja) * 1999-01-25 2000-08-04 Kokusan Denki Co Ltd アウタ―ロ―タ型磁石発電機
US6278207B1 (en) * 1999-12-24 2001-08-21 Minebea Co., Ltd. Blower
CN2414234Y (zh) * 2000-03-22 2001-01-10 台达电子工业股份有限公司 电扇的复合式扇叶
US20020053838A1 (en) * 2000-05-30 2002-05-09 Kazuma Okuda Outer rotor type motor / generator
US20020179069A1 (en) * 2001-05-29 2002-12-05 Tatsuo Kobayashi Flywheel magneto generator
CN2836326Y (zh) * 2003-06-17 2006-11-08 布莱克和戴克公司 具有双通路气流冷却装置的发电机及其方法
CN1627892A (zh) * 2003-09-16 2005-06-15 索尼株式会社 冷却装置和电子设备
WO2006120109A1 (fr) * 2005-05-10 2006-11-16 Siemens Vdo Automotive Ag Machine electrique
WO2007085125A1 (fr) * 2006-01-26 2007-08-02 Hangao Zhao Ventilateur combiné pourvu de pales à flux axial et à flux transversal

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2525143A (en) * 2014-01-06 2015-10-21 Spinetic Energy Ltd A generator
GB2525143B (en) * 2014-01-06 2020-06-24 Spinetic Energy Ltd A generator
CN106100290A (zh) * 2016-08-17 2016-11-09 株洲百创节能科技有限责任公司 永磁耦合器旋风冷却结构
CN109980892A (zh) * 2019-04-13 2019-07-05 宿州迅驰电子科技有限公司 一种音圈马达

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