WO2007113436A1 - Moteur electrique polyphase notamment pour l'entrainement de pompes ou de ventilateurs - Google Patents
Moteur electrique polyphase notamment pour l'entrainement de pompes ou de ventilateurs Download PDFInfo
- Publication number
- WO2007113436A1 WO2007113436A1 PCT/FR2007/051027 FR2007051027W WO2007113436A1 WO 2007113436 A1 WO2007113436 A1 WO 2007113436A1 FR 2007051027 W FR2007051027 W FR 2007051027W WO 2007113436 A1 WO2007113436 A1 WO 2007113436A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- teeth
- width
- stator
- narrow
- wide
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
Links
Classifications
-
- 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
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
-
- 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
- H02K1/14—Stator cores with salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
- H02K21/16—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
- H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
Definitions
- the present invention relates to a polyphase electric motor, particularly for pump or fan drive applications in the automotive industry.
- motors are known, as described by the German patent DE19905748, having a good balance of radial forces, but the structure of these motors does not allow a simple embodiment of the winding by separately winding the coils and in them. inserting into the stator. Indeed the control of the residual torque requires in these motors to have the largest possible poles of form and the winding must be achieved by inserting the copper wire by particularly narrow notches. To facilitate the winding, some motors then have a stator in several pieces, but the simplification of the winding is then done to the detriment of the realization of the stator circuit which becomes complex by assembling a large number of parts and therefore expensive.
- the present invention therefore aims to provide an economical and robust solution, suitable for large series, having a very good level of performance in terms of performance thanks to its copper volume and its short magnetic circuit, and in terms of noise by its balance of radial forces and its low residual torque level.
- the invention relates to a polyphase motor formed by a stator part excited by electric coils and by a magnetized rotor having N pairs of poles magnetized radially in alternating directions, the stator part having wide teeth and narrow teeth. extending radially from an annular ring.
- the wide teeth, which carry the coils, have a width greater than or equal to twice the width of the narrow teeth.
- the dimensioning of tooth widths, measured on the inner diameter of the stator uses a value pair, respectively for wide teeth and narrow teeth, having the particularity of canceling the residual torques of the motor.
- the shape of the stator which has wound teeth of constant rectangular section, allows the introduction of each coil around a wide tooth, the coils being made separately out of the stator.
- the notch width that allows to receive the winding is greater than the width of a narrow tooth, said widths being measured on the inner diameter of the stator.
- FIG. 1 represents a cross-sectional view of an engine according to the invention.
- the motor comprises a stator (1) having 6 wide teeth (11 to 16) and 6 narrow teeth (17 to 22) and a rotor (2) having N pairs of poles (Al to AlO) magnetized radially in alternating directions, - the FIG. 2 represents a cross-sectional view of a motor according to the prior art, the stator comprising 6 poles (51 to 56), FIG. 3 represents a cross-sectional view of an engine according to the prior art, the stator comprising 12 poles (71 to 82), FIG.
- FIG. 4 represents a cross-sectional view of a motor according to the prior art, the stator having 6 wide poles (P1 to P6) and 6 narrow poles (P7 to P12),
- FIG. 5 represents a graph showing the evolution of the torque constant per ampere-revolution as a function of tooth width respectively for stators with 6 and 12 teeth
- FIG. 6 represents a curve showing the evolution of the residual torque in according to the tooth width of a 6-tooth stator
- FIG. 7a shows a view in cross section of an engine according to the invention, the ratio of widths between wide tooth and narrow tooth being particularly large
- FIG. 7b represents a cross-sectional view of an engine according to the invention, the stator (1) having on its outer surface 6 recesses (101 to 106) arranged between the coils, - FIG. 8 represents a cross-sectional view. of an engine according to the invention, the stator (1) comprising 3 wide teeth (111 to 113) and 9 narrow teeth (117 to 125), FIG. 9 represents a cross-sectional view of an engine according to the invention the stator (1) having 3 wide teeth (111 to 113) and 6 narrow teeth (126 to 131).
- FIG. 6 shows that, contrary to what is usually practiced, narrow stator poles also make it possible to obtain very low residual torques. Indeed, as shown here the residual torque curve plotted as a function of the tooth width of a 6-tooth stator, there are 2 tooth widths for which the residual torque is zero. For an engine we will be able to determine 2 widths of teeth to obtain a low residual torque. These two widths of teeth correspond on the one hand to a relatively large tooth and on the other hand to a tooth of width less than half.
- the engine according to the invention shown in FIG. 1, has a 12-tooth structure which provides the best torque constant and uses stator (1) wide teeth (11 to 16) and narrow teeth (17 to 22) allowing to guarantee a very low residual torque by a judicious choice of pole widths.
- the width ratio between wide teeth and narrow teeth is then 2.2.
- the windings (41 to 46) are placed around the wide teeth (11 to 16) which makes it possible to obtain the maximum of torque per ampere-revolution of the motor.
- This torque per ampere-turn is indeed a function of the width (31) of coiled tooth, but is very little influenced by the width (33) of unreeled teeth provided that the latter do not exhibit saturation.
- the use of narrow poles for non-wound teeth makes it possible to have a very wide notch for the passage of the winding.
- the width (32) of this notch is greater than the width (33) of a narrow tooth.
- the stator (1) comprises between the coils (41 to 46) holes (47a to 47f) for the passage of fasteners on a support, for example screws or rivets.
- the geometry of the stator makes it possible to place these holes (47a to 47e) inside the outer diameter of the coils, which makes it possible to provide an assembly of the motor without an outer tube. This reduces the number of parts and is a gain in weight and space, the diameter of the stator (1) becoming the outer diameter of the engine.
- the motor of Figure 7a represents a preferred embodiment for the invention.
- the ratio of the widths between wide teeth (11 to 16) and narrow teeth (17 to 22) is then greater than 4, which makes it possible to increase the copper section of the coils and also to reduce the permeance of leakage from tooth to tooth .
- Figure 7b shows a preferred embodiment for the invention.
- the stator has on its outer surface recesses which can significantly increase its exchange surface with the outside. These recesses, moreover, do not disturb the path of the magnetic field lines because the flux generated by each of the wound poles closes by the two adjacent poles.
- the motors according to the invention and presented in FIGS. 1 and 7 are perfectly balanced in terms of radial forces with and without current due to their perfect diametrical symmetry. For reasons of cost, however, it may be preferred in some applications to reduce the number of coils. In this case, only one wide tooth out of 2 will be wound and it will accept the presence of radial forces during power supply of the coils.
- FIGS 8 and 9 show embodiments with only 3 coils but with stator structures that always guarantee the low residual torque of the engine.
- the motor shown in Figure 8 has 9 narrow teeth (117 to 125) and 3 wide teeth (111 to 113) carrying 3 coils (114 to 116).
- the wide unreinforced teeth were here converted into narrow teeth, which made it possible to increase the angle (140) between the coiled wide tooth and the adjacent teeth.
- the motor shown in Figure 9 has 6 narrow teeth (126 to 131) and 3 wide teeth (111 to 113) carrying 3 coils (114 to 116). In this case the non-wound wide teeth have been removed. This makes it possible, as in the previous case, to increase the angle (140) between the wound tooth and the adjacent teeth and also to free space
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009502170A JP5254203B2 (ja) | 2006-03-30 | 2007-03-28 | ポンプ又は換気装置の駆動用の多相電気モータ |
| EP07731835.0A EP2002531B1 (fr) | 2006-03-30 | 2007-03-28 | Moteur electrique polyphase notamment pour l'entrainement de pompes ou de ventilateurs |
| US12/295,050 US8102093B2 (en) | 2006-03-30 | 2007-03-28 | Polyphase electric motor especially for driving pumps or ventilators |
| KR1020087026422A KR101319371B1 (ko) | 2006-03-30 | 2007-03-28 | 펌프 또는 환기장치를 구동하기 위한 다상 전동기 |
| CN2007800116400A CN101427447B (zh) | 2006-03-30 | 2007-03-28 | 特别用于驱动泵或通风设备的多相电动机 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0651117A FR2899396B1 (fr) | 2006-03-30 | 2006-03-30 | Moteur electrique polyphase notamment pour l'entrainement de pompes ou de ventilateurs |
| FR0651117 | 2006-03-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2007113436A1 true WO2007113436A1 (fr) | 2007-10-11 |
Family
ID=37398955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2007/051027 Ceased WO2007113436A1 (fr) | 2006-03-30 | 2007-03-28 | Moteur electrique polyphase notamment pour l'entrainement de pompes ou de ventilateurs |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US8102093B2 (fr) |
| EP (1) | EP2002531B1 (fr) |
| JP (1) | JP5254203B2 (fr) |
| KR (1) | KR101319371B1 (fr) |
| CN (1) | CN101427447B (fr) |
| FR (1) | FR2899396B1 (fr) |
| WO (1) | WO2007113436A1 (fr) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100054972A1 (en) * | 2008-09-03 | 2010-03-04 | Yong Bin Li | Fuel pump |
| US20100054971A1 (en) * | 2008-09-03 | 2010-03-04 | Yong Bin Li | Brushless motor |
| JP2012506683A (ja) * | 2008-10-21 | 2012-03-15 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | 回転電気機械 |
| EP2171831B1 (fr) | 2007-07-24 | 2016-06-15 | Moving Magnet Technologies (MMT) | Moto-réducteur comportant un moteur électrique polyphasé compact |
| EP3312973A4 (fr) * | 2015-09-18 | 2018-09-12 | Aisin AW Co., Ltd. | Machine électrique tournante et stator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4758484B2 (ja) * | 2008-01-24 | 2011-08-31 | ダイキン工業株式会社 | 圧縮機 |
| FR2945388B1 (fr) * | 2009-05-11 | 2013-04-12 | Moving Magnet Technologies M M T | Moteur electrique triphase a faible couple de detente |
| CN102124628B (zh) * | 2009-09-11 | 2013-03-06 | 配天(安徽)电子技术有限公司 | 大小齿结构的三相无刷永磁直流电机及其装配方法 |
| NO338460B1 (no) * | 2009-12-16 | 2016-08-15 | Smartmotor As | Elektrisk maskin, dens rotor og dens fremstilling |
| US9312733B2 (en) | 2010-11-03 | 2016-04-12 | Regal Beloit America, Inc. | High power density SRM |
| JP5270640B2 (ja) * | 2010-11-05 | 2013-08-21 | トヨタ自動車株式会社 | ステータコア |
| JP5421396B2 (ja) | 2012-01-13 | 2014-02-19 | ファナック株式会社 | 主歯及び副歯を有する鉄心コアを備える電動機 |
| DE102012103677B4 (de) * | 2012-04-26 | 2025-05-15 | Feaam Gmbh | Elektrische Maschine |
| FR2994353B1 (fr) * | 2012-08-01 | 2014-08-08 | Moving Magnet Tech | Moteur electrique optimise a dents etroites |
| FR2996072B1 (fr) | 2012-09-26 | 2016-07-29 | Sonceboz Automotive Sa | Ensemble de connexion electrique pour moteur sans balai |
| US20140125189A1 (en) * | 2012-11-06 | 2014-05-08 | Nidec Motor Corporation | 3-phase permanent magnet motor or generator having variable stator teeth |
| JP6063262B2 (ja) | 2013-01-15 | 2017-01-18 | 株式会社ミクニ | 電動機、電動機を用いたポンプ装置およびステータ |
| US9407194B2 (en) | 2013-03-15 | 2016-08-02 | Emerson Climate Technologies, Inc. | System and method for protection of a compressor with an aluminum winding motor |
| US10333360B2 (en) * | 2013-05-10 | 2019-06-25 | Mitsubishi Electric Corporation | Iron core member with divided yoke and tooth portions with V-shaped end joint portions |
| DK2806534T3 (en) * | 2013-05-23 | 2016-06-06 | Siemens Ag | Electric machine with partial parallel slots and teeth |
| JP6140537B2 (ja) * | 2013-06-12 | 2017-05-31 | 日本電産サンキョー株式会社 | モータ |
| KR101539849B1 (ko) * | 2013-09-23 | 2015-07-28 | 뉴모텍(주) | 절연 코팅에 적합한 구조를 갖는 모터의 적층 코어 |
| FR3011697A1 (fr) | 2013-10-07 | 2015-04-10 | Moving Magnet Tech | Machine electrique sans encoches a bobinage concentre |
| CN105186725A (zh) * | 2014-05-28 | 2015-12-23 | 德昌电机(深圳)有限公司 | 电动流体泵及其电机定子结构 |
| FR3027744B1 (fr) * | 2014-10-23 | 2016-12-02 | Mmt Sa | Moteur polyphase presentant une alternance d'aimants permanents et de poles saillants |
| FR3030147B1 (fr) | 2014-12-11 | 2018-03-16 | Mmt Sa | Actionneur avec modules statorique et rotorique enrobes |
| US10170946B2 (en) * | 2015-02-02 | 2019-01-01 | Persimmon Technologies Corporation | Motor having non-circular stator |
| JP2018068062A (ja) * | 2016-10-20 | 2018-04-26 | アイシン精機株式会社 | ブラシレスモータ |
| FR3064835B1 (fr) | 2017-03-31 | 2020-01-17 | Moving Magnet Technologies | Stator pour machine electrique |
| US10693336B2 (en) * | 2017-06-02 | 2020-06-23 | Whirlpool Corporation | Winding configuration electric motor |
| DE102017112591A1 (de) | 2017-06-08 | 2018-12-13 | Minebea Mitsumi Inc. | Elektromotor und Wickelverfahren |
| US11728698B2 (en) * | 2017-07-31 | 2023-08-15 | William R. Benner, Jr. | Variable torque low inertia brushless motor |
| CN108880014B (zh) * | 2018-05-29 | 2021-10-29 | 南方电机科技有限公司 | 一种定子、马达及自动化设备 |
| KR102685318B1 (ko) * | 2018-08-01 | 2024-07-16 | 존슨 일렉트릭 인터내셔널 아게 | 액추에이터 |
| KR102323758B1 (ko) * | 2018-09-18 | 2021-11-08 | 재단법인대구경북과학기술원 | 스테이터 및 이를 포함하는 모터 어셈블리 |
| JP7028152B2 (ja) * | 2018-12-14 | 2022-03-02 | トヨタ自動車株式会社 | レゾルバ |
| JP7219152B2 (ja) * | 2019-05-07 | 2023-02-07 | ファナック株式会社 | 固定子及び固定子を備えた電動機 |
| FR3096195B1 (fr) | 2019-05-17 | 2021-05-14 | Moving Magnet Tech | Motoréducteur faible bruit à Moteur électrique dissymétrique |
| FR3104340A1 (fr) | 2019-12-10 | 2021-06-11 | Sonceboz Mechatronics Boncourt Sa | Moteur electrique |
| CN112366839B (zh) * | 2020-09-22 | 2022-05-13 | 珠海格力节能环保制冷技术研究中心有限公司 | 定子和电机 |
| JP7570266B2 (ja) * | 2021-03-29 | 2024-10-21 | 株式会社日立製作所 | 回転電機の固定子、回転電機、電気駆動システム、及び電動ホイール |
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| FR2201575A2 (fr) * | 1972-09-29 | 1974-04-26 | Valroger Pierre De | |
| EP0182702A1 (fr) * | 1984-11-13 | 1986-05-28 | Digital Equipment Corporation | Moteur à courant continu sans balais |
| US5880551A (en) * | 1996-10-21 | 1999-03-09 | Sonceboz Sa | Polyphase motor, particularly for driving an indicator needle |
| DE19905748A1 (de) * | 1998-02-12 | 1999-08-19 | Okuma Machinery Works Ltd | Permanentmagnetmotor |
| DE10124415A1 (de) * | 2001-05-18 | 2002-11-28 | Siemens Ag | Elektrische Maschine |
| EP1422806A2 (fr) * | 2002-11-19 | 2004-05-26 | Fanuc Ltd | Moteur électrique |
| US20050099086A1 (en) * | 2003-11-12 | 2005-05-12 | Siemens Aktiengesellschaft | Electric machine |
| WO2005074099A1 (fr) * | 2004-01-29 | 2005-08-11 | Mitsubishi Denki Kabushiki Kaisha | Moteur |
| WO2006029972A1 (fr) * | 2004-09-15 | 2006-03-23 | Siemens Aktiengesellschaft | Machine synchrone |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4990809A (en) * | 1987-04-27 | 1991-02-05 | The Superior Electric Company | Variable reluctance motor |
| JPH07288961A (ja) * | 1994-04-14 | 1995-10-31 | Nippon Densan Corp | ブラシレスモータ |
| US6028385A (en) * | 1995-10-19 | 2000-02-22 | Tridelta Industries, Inc. | Switched reluctance motor |
| CN2440285Y (zh) * | 2000-08-11 | 2001-07-25 | 张安欣 | 一种新型无换向器电动机 |
| GB0400737D0 (en) * | 2004-01-14 | 2004-02-18 | Rolls Royce Plc | Electrical machine |
| US7247967B2 (en) * | 2004-08-09 | 2007-07-24 | A. O. Smith Corporation | Electric motor having a stator |
-
2006
- 2006-03-30 FR FR0651117A patent/FR2899396B1/fr not_active Expired - Lifetime
-
2007
- 2007-03-28 CN CN2007800116400A patent/CN101427447B/zh active Active
- 2007-03-28 EP EP07731835.0A patent/EP2002531B1/fr active Active
- 2007-03-28 WO PCT/FR2007/051027 patent/WO2007113436A1/fr not_active Ceased
- 2007-03-28 JP JP2009502170A patent/JP5254203B2/ja active Active
- 2007-03-28 US US12/295,050 patent/US8102093B2/en active Active
- 2007-03-28 KR KR1020087026422A patent/KR101319371B1/ko active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2201575A2 (fr) * | 1972-09-29 | 1974-04-26 | Valroger Pierre De | |
| EP0182702A1 (fr) * | 1984-11-13 | 1986-05-28 | Digital Equipment Corporation | Moteur à courant continu sans balais |
| US5880551A (en) * | 1996-10-21 | 1999-03-09 | Sonceboz Sa | Polyphase motor, particularly for driving an indicator needle |
| DE19905748A1 (de) * | 1998-02-12 | 1999-08-19 | Okuma Machinery Works Ltd | Permanentmagnetmotor |
| DE10124415A1 (de) * | 2001-05-18 | 2002-11-28 | Siemens Ag | Elektrische Maschine |
| EP1422806A2 (fr) * | 2002-11-19 | 2004-05-26 | Fanuc Ltd | Moteur électrique |
| US20050099086A1 (en) * | 2003-11-12 | 2005-05-12 | Siemens Aktiengesellschaft | Electric machine |
| WO2005074099A1 (fr) * | 2004-01-29 | 2005-08-11 | Mitsubishi Denki Kabushiki Kaisha | Moteur |
| WO2006029972A1 (fr) * | 2004-09-15 | 2006-03-23 | Siemens Aktiengesellschaft | Machine synchrone |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2171831B1 (fr) | 2007-07-24 | 2016-06-15 | Moving Magnet Technologies (MMT) | Moto-réducteur comportant un moteur électrique polyphasé compact |
| US20100054972A1 (en) * | 2008-09-03 | 2010-03-04 | Yong Bin Li | Fuel pump |
| US20100054971A1 (en) * | 2008-09-03 | 2010-03-04 | Yong Bin Li | Brushless motor |
| CN101666279A (zh) * | 2008-09-03 | 2010-03-10 | 德昌电机(深圳)有限公司 | 燃料泵 |
| US8415855B2 (en) * | 2008-09-03 | 2013-04-09 | Johnson Electric S.A. | Brushless motor |
| US8622722B2 (en) * | 2008-09-03 | 2014-01-07 | Johnson Electric S.A. | Fuel pump |
| JP2012506683A (ja) * | 2008-10-21 | 2012-03-15 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | 回転電気機械 |
| EP3312973A4 (fr) * | 2015-09-18 | 2018-09-12 | Aisin AW Co., Ltd. | Machine électrique tournante et stator |
| US10958122B2 (en) | 2015-09-18 | 2021-03-23 | Aisin Aw Co., Ltd. | Rotating electrical machine and stator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101427447B (zh) | 2012-07-04 |
| KR101319371B1 (ko) | 2013-10-18 |
| FR2899396B1 (fr) | 2008-07-04 |
| EP2002531B1 (fr) | 2019-03-06 |
| KR20090009835A (ko) | 2009-01-23 |
| JP2009532010A (ja) | 2009-09-03 |
| US8102093B2 (en) | 2012-01-24 |
| CN101427447A (zh) | 2009-05-06 |
| EP2002531A1 (fr) | 2008-12-17 |
| JP5254203B2 (ja) | 2013-08-07 |
| US20090174280A1 (en) | 2009-07-09 |
| FR2899396A1 (fr) | 2007-10-05 |
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