WO2018054224A1 - Dispositif de ventilation et de refroidissement fermé de type alvéolaire destin'e à un moteur - Google Patents

Dispositif de ventilation et de refroidissement fermé de type alvéolaire destin'e à un moteur Download PDF

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Publication number
WO2018054224A1
WO2018054224A1 PCT/CN2017/100857 CN2017100857W WO2018054224A1 WO 2018054224 A1 WO2018054224 A1 WO 2018054224A1 CN 2017100857 W CN2017100857 W CN 2017100857W WO 2018054224 A1 WO2018054224 A1 WO 2018054224A1
Authority
WO
WIPO (PCT)
Prior art keywords
axial
motor
ventilation
vent
stainless steel
Prior art date
Application number
PCT/CN2017/100857
Other languages
English (en)
Chinese (zh)
Inventor
李伟力
曹君慈
李栋
张晓晨
李金阳
张智娟
沈稼丰
李锦州
Original Assignee
北京交通大学
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 北京交通大学 filed Critical 北京交通大学
Priority to RU2018140987A priority Critical patent/RU2725180C1/ru
Publication of WO2018054224A1 publication Critical patent/WO2018054224A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H02K5/207—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/14—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle
    • H02K9/16—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle wherein the cooling medium circulates through ducts or tubes within the casing

Definitions

  • the present invention relates to the field of cooling technology for electric machines, and more particularly to a honeycomb type closed ventilation cooling device for an electric machine.
  • the traditional open-air ventilation and cooling structure the end winding is affected by natural conditions such as sand and moisture, so that the end is damp, the insulation resistance is reduced, the winding is short-circuited, and even the motor is burned; and the traditional closed ventilation cooling structure is forever
  • the magnets and the end windings are not effectively cooled, which will cause the end windings and permanent magnets to be too hot.
  • the end windings may be burnt due to excessive temperature, and the permanent magnets are extremely sensitive to temperature. Excessive temperature is easy to cause.
  • the permanent magnet is partially demagnetized, causing damage to the motor.
  • Embodiments of the present invention provide a honeycomb-type closed-ventilation cooling device for an electric motor to achieve effective ventilation cooling of the motor.
  • the present invention adopts the following technical solutions.
  • a honeycomb type closed-air ventilation and cooling device for an electric motor comprising:
  • axial vent holes are evenly distributed in the circumferential direction.
  • a stainless steel ventilation tube is inserted into the air inlet and the air outlet of the axial vent.
  • the stainless steel ventilation tube is made of a non-magnetic high-resistance material.
  • both ends of the axial ventilation tube and the circular plate are welded and connected.
  • the air is introduced through the vent through the air vent, and the air flows into the axial vent through the stainless steel venting tube, and the heat-bearing wind exchanges heat with the air outside the motor cover. .
  • the honeycomb-type closed ventilation system provided by the embodiment of the invention has a simple structure, improves the ventilation cooling effect of the motor, and improves the safety and stable operation of the motor. ability.
  • the two ends of the stainless steel ventilation tube are welded to the circular plate to play the role of air guiding, which can cool the iron core and the straight segment winding on the back side of the stator yoke, and also cool the stator end winding and the rotor core, which can not only effectively improve the stator.
  • the cooling effect of the iron core and the winding on the back of the yoke, and the end winding can be isolated from the outside to avoid damage caused by the environment.
  • the honeycomb type closed ventilation system provided by the invention can effectively avoid the traditional ventilation and cooling system from being affected by natural conditions such as sand, rain and fog, and effectively avoid damage to the motor caused by excessive temperature of the end winding and the permanent magnet, and improve the motor. Ventilation cooling effect enhances the safety and stable operation of the motor.
  • FIG. 1 is an axial cross-sectional view of a honeycomb-type closed ventilation and cooling system for an electric motor according to an embodiment of the present invention
  • FIG. 2 is a schematic view showing a direction in which a vent opening is provided and a direction in which a circular plate is inserted according to an embodiment of the present invention
  • FIG. 3 is a cross-sectional view of a circumferential direction of an axial vent hole according to an embodiment of the present invention
  • 4 is a partial cross-sectional view of a circumferential direction of an axial vent according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram of a stainless steel ventilation tube embedded in an axial ventilation hole according to an embodiment of the present invention.
  • the embodiment of the invention provides a honeycomb ventilation cooling system to solve the problems caused by the conventional ventilation cooling structure.
  • Figure 1 The axial cross-sectional view of the honeycomb closed ventilation and cooling system is shown in Figure 1.
  • An axial venting hole is provided in the circumferential direction on the back of the stator yoke, and the axial venting hole has a certain distance from the stator winding. Insert the stainless steel ventilation tube into the axial ventilation hole, and fix the two ends of the stainless steel ventilation tube to the circular plate.
  • the fixed connection can be a welded connection.
  • FIG. 2 is a schematic view of the venting direction of the vent opening and the insertion direction of the circular plate.
  • the venting opening is provided on the upper surface of the casing, and the circular plate is inserted under the side of the venting opening.
  • FIG. 3 A cross-sectional view of the axial venting hole in the circumferential direction is shown in FIG. 3, and a partial cross-sectional view in the circumferential direction is shown in FIG. 4, and as can be seen in conjunction with FIG. 3 and FIG. 4, the axial venting hole and the stator are disposed on the back of the stator yoke.
  • the winding has a certain distance, for example, this distance is about 20mm.
  • the axial venting holes are evenly distributed in the circumferential direction, resembling a honeycomb, and the ventilating cooling system of the present invention is named accordingly.
  • FIG. 5 is a schematic view of a stainless steel ventilation tube embedded in an axial ventilation hole according to an embodiment of the present invention. Insert a stainless steel venting tube into the air inlet and outlet of the axial vent.
  • the stainless steel vent tube is made of non-magnetic high-resistance material.
  • the honeycomb closed ventilation system provided by the embodiment of the invention has a simple structure, improves the ventilation cooling effect of the motor, and improves the safety and stable operation capability of the motor.
  • the two ends of the stainless steel ventilation tube are welded to the circular plate to play the role of air guiding, which can cool the iron core and the straight segment winding on the back side of the stator yoke, and also cool the stator end winding and the rotor core, which can not only effectively improve the stator.
  • the cooling effect of the iron core and the winding on the back of the yoke, and the end winding can be isolated from the outside to avoid damage caused by the environment.
  • the honeycomb type closed ventilation and cooling system provided by the embodiment of the invention can effectively avoid the traditional ventilation and cooling system from being affected by natural conditions such as sand, rain and fog, and effectively avoid damage to the motor caused by excessive temperature of the end winding and the permanent magnet. Improve the ventilation and cooling effect of the motor, and enhance the safety and stable operation of the motor.
  • the components in the device in the embodiment may be distributed in the device of the embodiment according to the embodiment, or may be correspondingly changed in one or more devices different from the embodiment. .
  • the components of the above embodiments may be combined into one component or may be further split into a plurality of subcomponents.

Landscapes

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

Abstract

L'invention concerne un dispositif de ventilation et de refroidissement fermé de type alvéolaire pour un moteur, dans lequel : le côté arrière d'une culasse de stator de moteur est pourvu de trous de ventilation axiale (2) le long d'une direction circonférentielle ; les trous de ventilation axiale (2) sont à une certaine distance d'un enroulement de stator (5) du moteur ; des tuyaux circulaires en acier inoxydable (3-1, 3-2) sont introduits dans les trous de ventilation axiale (2) ; les deux extrémités d'un tuyau de ventilation axiale sont reliées de manière fixe à une plaque circulaire (4) ; et une ouverture de ventilation (1) est disposée au-dessus de la plaque circulaire (4) sur un boîtier. Les trous de ventilation axiale (2) sont uniformément répartis le long de la direction circonférentielle. Le système de ventilation fermée de type alvéolaire est de structure simple et améliore l'effet de ventilation et de refroidissement d'un moteur ainsi que la sécurité et la capacité de fonctionnement stable du moteur. La présente invention permet de refroidir un noyau de fer et un enroulement linéaire du côté arrière d'une culasse de stator, ainsi qu'un enroulement d'extrémité d'un stator et un noyau de fer de rotor (6), et peut ainsi améliorer efficacement l'effet de refroidissement du noyau de fer et de l'enroulement du côté arrière de la culasse de stator, et isoler l'enroulement d'extrémité de l'extérieur de façon à protéger ce dernier d'un endommagement dû à l'environnement.
PCT/CN2017/100857 2016-09-20 2017-09-07 Dispositif de ventilation et de refroidissement fermé de type alvéolaire destin'e à un moteur WO2018054224A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2018140987A RU2725180C1 (ru) 2016-09-20 2017-09-07 Закрытая вентиляция и охлаждение устройства сотового типа

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610835686.5A CN106385122A (zh) 2016-09-20 2016-09-20 电机的蜂巢式密闭通风冷却装置
CN201610835686.5 2016-09-20

Publications (1)

Publication Number Publication Date
WO2018054224A1 true WO2018054224A1 (fr) 2018-03-29

Family

ID=57936665

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/100857 WO2018054224A1 (fr) 2016-09-20 2017-09-07 Dispositif de ventilation et de refroidissement fermé de type alvéolaire destin'e à un moteur

Country Status (3)

Country Link
CN (1) CN106385122A (fr)
RU (1) RU2725180C1 (fr)
WO (1) WO2018054224A1 (fr)

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* Cited by examiner, † Cited by third party
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CN106385122A (zh) * 2016-09-20 2017-02-08 北京交通大学 电机的蜂巢式密闭通风冷却装置
CN107425655B (zh) * 2017-09-14 2023-04-11 杭州桢正玮顿运动控制技术有限公司 一种风冷伺服电机
CN112109739B (zh) * 2019-06-19 2022-09-09 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） 风冷导热管及具有其的风冷式分体真空管道结构
CN112242230A (zh) * 2019-07-16 2021-01-19 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） 强制风冷导热管及强制风冷式分体真空管道结构
CN115051490A (zh) * 2022-08-15 2022-09-13 大庆市晟威机械制造有限公司 一种机械设备用永磁节能电动机

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CN102064636A (zh) * 2011-01-12 2011-05-18 哈尔滨理工大学 具有定子多回路往复式通风系统的汽轮发电机
US20110181137A1 (en) * 2009-02-27 2011-07-28 Hitachi, Ltd., Permanent magnet type electric power generator
CN102611222A (zh) * 2012-02-22 2012-07-25 北京交通大学 自带齿轮式搅风结构的电机通风系统
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CN106385122A (zh) * 2016-09-20 2017-02-08 北京交通大学 电机的蜂巢式密闭通风冷却装置

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RU2309512C1 (ru) * 2006-05-02 2007-10-27 Открытое акционерное общество "Силовые машины-ЗТЛ, ЛМЗ, Электросила, Энергомашэкспорт" (ОАО "Силовые машины") Способ охлаждения электрической машины и электрическая машина
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Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5317224A (en) * 1990-02-03 1994-05-31 Robert Bosch Gmbh Electric machine with means for guiding cooling air supplied from outside of the machine
US20110181137A1 (en) * 2009-02-27 2011-07-28 Hitachi, Ltd., Permanent magnet type electric power generator
CN201601575U (zh) * 2009-11-10 2010-10-06 无锡哈电电机有限公司 一种大中型高速电机
CN102064636A (zh) * 2011-01-12 2011-05-18 哈尔滨理工大学 具有定子多回路往复式通风系统的汽轮发电机
CN102611222A (zh) * 2012-02-22 2012-07-25 北京交通大学 自带齿轮式搅风结构的电机通风系统
CN204013084U (zh) * 2014-07-08 2014-12-10 东方电气集团东方电机有限公司 一种空空冷却式风力发电机的通风冷却结构
CN104578596A (zh) * 2015-01-22 2015-04-29 北京建筑大学 一种电机及其定子结构的加工方法
CN106385122A (zh) * 2016-09-20 2017-02-08 北京交通大学 电机的蜂巢式密闭通风冷却装置

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RU2725180C1 (ru) 2020-06-30
CN106385122A (zh) 2017-02-08

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