FR2803126A1 - Alternator for starter-generator in an automotive vehicle, has stator generating less magnetic noise - Google Patents
Alternator for starter-generator in an automotive vehicle, has stator generating less magnetic noise Download PDFInfo
- Publication number
- FR2803126A1 FR2803126A1 FR9916373A FR9916373A FR2803126A1 FR 2803126 A1 FR2803126 A1 FR 2803126A1 FR 9916373 A FR9916373 A FR 9916373A FR 9916373 A FR9916373 A FR 9916373A FR 2803126 A1 FR2803126 A1 FR 2803126A1
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- FR
- France
- Prior art keywords
- sheets
- damping element
- machine according
- sheet
- stator
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- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/04—Details of the magnetic circuit characterised by the material used for insulating the magnetic circuit or parts thereof
-
- 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
-
- 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
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
- H02K1/185—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to outer stators
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
Description
L'invention concerne une machine électrique tournante telle quun alternateur pour véhicule automobile, notamment un alternodémarreur. The invention relates to a rotating electrical machine such as an alternator for a motor vehicle, in particular an alternator / starter.
on sait que dans un alternateur de véhicule, le flux magnétique traversant le stator génère des vibrations mécaniques sur le paquet de tôles du stator, ce qui produit du bruit appelé bruit magnétique. it is known that in a vehicle alternator, the magnetic flux passing through the stator generates mechanical vibrations on the stator laminations, which produces noise called magnetic noise.
On connaît d'après le document FR-2 343 354 un alternateur comportant un stator muni un paquet de toles identiques empilées. Le paquet de tôles comporte lamelle interposée axialement entre deux des tôles. Cette lamelle, réalisée dans un matériau anti- magnétique ou bien en fer doux ou en acier, vise<B>à</B> diminuer le flux traversant le stator entraîne une reduction du bruit magnétique engendré. Document FR-2 343 354 discloses an alternator comprising a stator provided with a stack of identical stacked sheets. The pack of sheets has lamella interposed axially between two of the sheets. This slat, made of an anti-magnetic material or soft iron or steel, aims to reduce the flow through the stator causes a reduction in magnetic noise generated.
Un but de l'invention est de fournir une machine électrique tournante encore plus silencieuse. An object of the invention is to provide a rotating electrical machine even quieter.
En vue de la réalisation de ce<B>.</B> on prévoit selon l'invention une machine électrique tournante pour vehicule, comportant un rotor et un stator comprenant paquet de tôles et un enroulement, le paquet de tôles comportant des tôles identiques empilées et au moins un élément non identique aux tôles et fixé aux tôles, dans lequel l'élément est un élément d'amortissement mécanique. In view of the production of this <B>. </ B> according to the invention there is provided a rotating electrical machine for a vehicle, comprising a rotor and a stator comprising a bundle of sheets and a winding, the bundle of sheets comprising identical sheets. stacked and at least one element not identical to the sheets and fixed to the sheets, wherein the element is a mechanical damping element.
Ainsi, l'élément d'amortissement absorbe une partie au moins des vibrations mécaniques apparaissant dans le paquet de tôles. Il réalise donc un découplage axial de ce dernier. On réduit de ce fait le bruit magnétique et donc le bruit total de fonctionnement de la machine. La machine pourra en outre présenter au moins l'une des caractéristiques suivantes<B>:</B> ou chaque élément d'amortissement est élastique ou chaque élément d'amortissement comprend tôle ondulée<B>;</B> ou chaque élément d'amortissement comprend élastomère<B>;</B> ou chaque élément d'amortissement comprend feuille d'élastomère empilée avec les tôles<B>;</B> ou chaque élément d'amortissement comprend un film d'elastomère recouvrant au moins en partie au moins face principale d'au moins une des tôles<B>;</B> ou chaque élément d'amortissement comprend colle élastique<B>;</B> ou chaque élément d'amortissement s'étend<B>à</B> extrémité axiale du paquet de tôles<B>;</B> ou chaque élément d'amortissement s'étend entre deux des tôles identiques du paquet de tôles<B>;</B> et<B>/ou</B> s'agit d'un alternodémarreur ou d'un alternateur. enroulement comprend des conducteurs en forme épingles. Thus, the damping member absorbs at least a portion of the mechanical vibrations occurring in the sheet package. It thus realizes an axial decoupling of the latter. This reduces the magnetic noise and thus the total operating noise of the machine. The machine may further have at least one of the following features: where each damping element is resilient or each damping element comprises corrugated metal sheet or each element the damping element comprises elastomer <B>; </ B> where each damping element comprises an elastomer sheet stacked with the sheets <B>; </ B> where each damping element comprises an elastomeric film covering at least partly at least one of at least one of the <B>; </ B> metal plates, or each damping element comprises elastic glue <B>; </ B> where each damping element extends <B at the axial end of the plate pack <B>; </ B> where each damping element extends between two of the identical plates of the plate pack <B>; </ B> and <B> / or </ B> is an alternator starter or an alternator. Winding includes shaped conductors pins.
on prévoit également selon l'invention un procedé de réalisation d'une machine électrique tournante pour véhicule comportant un rotor et un stator comprenant un enroulement et un paquet de tôles, comprenant étapes consistant<B>à :</B> <B>-</B> empiler des tôles identiques entre elles <B>-</B> disposer sur un chant des tôles une solution liquide susceptible de former après solidification un élément d'amortissement<B>;</B> et <B>-</B> faire en sorte que la solution se solidifie. on a constaté que le simple dépôt de la substance sur le chant du paquet de tôles, par exemple par immersion, suffisait<B>à</B> faire migrer la substance notamment par capillarité radialement sur une grande distance entre les tôles, et ce en raison du fait que tôles ne sont pas rigoureusement en contact surfacique les unes avec les autres. On installe ainsi façon simple un élastomère entre les tôles paquet tôles<B>déjà</B> constitué. there is also provided according to the invention a method for producing a rotating electric machine for a vehicle comprising a rotor and a stator comprising a winding and a pack of sheets, comprising the steps of: <B> to: </ B> <B> - </ B> stack sheets identical to each other <B> - </ B> arrange on a sheet metal edge a liquid solution capable of forming after solidification a damping element <B>; </ B> and <B> - </ B> make the solution solidify. it has been found that the simple deposition of the substance on the edge of the package of sheets, for example by immersion, was sufficient to cause the substance to migrate in particular by capillary action radially over a large distance between the sheets, and this due to the fact that sheets are not strictly in surface contact with each other. In this way, an elastomer is simply installed between the sheet metal plates <B> already </ B> formed.
Avantageusement, on dispose la solution en trempant le paquet de tôles dans un bain de la solution. Advantageously, the solution is available by dipping the sheet package in a bath of the solution.
D'autres caractéristiques et avantages de invention apparaîtront encore dans la description suivante de plusieurs modes préférés de réalisation et variantes donnés<B>à</B> titre d'exemples non limitatifs. dessins annexés<B>:</B> figure<B>1</B> est une vue en coupe axiale d'un alternateur du type de celui de l'invention<B>;</B> figure 2 est une vue latérale développée stator de 'alternateur de la figure<B>1 ;</B> <B>-</B> figures<B>3 à 5</B> sont des vues analogues<B>à</B> figure 2 montrant d'autres modes de réalisation du stator<B>;</B> <B>-</B> figure<B>6</B> est une vue partielle en coupe axiale du stator de la figure<B>5 ;</B> et figure<B>7</B> est une vue analogue<B>à</B> la figure 2 montrant un autre mode de réalisation. Other features and advantages of the invention will become apparent in the following description of several preferred embodiments and variants given as non-limiting examples. attached drawings <B>: </ B> Figure <B> 1 </ B> is an axial sectional view of an alternator of the type of the invention <B>; </ B> Figure 2 is a view Alternator stator side of the figure <B> 1; </ B> <B> - </ B> Figures <B> 3 to 5 </ B> are similar views <B> to </ B> Figure 2 showing other embodiments of the stator <B>; </ B> <B> - </ B> Figure <B> 6 </ B> is a partial view in axial section of the stator of the figure <B> 5; </ B> and Figure <B> 7 </ B> is a similar view <B> to </ B> Figure 2 showing another embodiment.
On a illustré<B>à</B> la figure<B>1</B> un alternateur selon un mode préféré de réalisation de l'invention.<B>il</B> comprend classiquement un carter 4 et un rotor ayant un arbre<B>8</B> d'axe<B>10.</B> Le rotor comporte deux roues 12<B>à</B> cornes polaires entres lesquelles s'étend un noyau magnétique 14 et un bobinage d'induit<B>16.</B> FIG. 1 illustrates an alternator according to a preferred embodiment of the invention. It conventionally comprises a casing 4 and a rotor. having a shaft <B> 8 </ B> of axis <B> 10. </ B> The rotor has two pole-shaped wheels 12 <B> with polar horns between which a magnetic core 14 and a armature winding <B> 16. </ B>
alternateur comporte un stator<B>18</B> fixe intérieurement au carter 4, et comportant un paquet tôles portant dans des encoches un enroulement 22 fils formant aux deux extrémités axiales du stator chignons<B>23.</B> Un tel agencement est connu en soi exemple du document FR-2 <B>596 930.</B> alternator comprises a stator <B> 18 </ B> internally fixed to the casing 4, and comprising a bunch of sheets carrying in a notches a 22-wire winding forming at the two axial ends of the stator bignons <B> 23. </ B> Such arrangement is known per se example of document FR-2 <B> 596 930. </ B>
référence<B>à</B> la figure 2, le paquet de tôles comporte des tôles 24 planes identiques entre elles empilees avec leurs contours en coïncidence. l'espece, le paquet de tôles comporte en outre une tôle <B>26</B> ayant en plan mêmes dimensions et même contour les tôles 24. Toutefois, cette tôle<B>26</B> est ondulee suivant son épaisseur, c'est-à-dire que cette ondulation est visible sur une vue de la tôle suivant son chant. Cette tôle ondulée<B>26</B> est empilée avec autres tôles 24, ici entre celles-ci, au centre l'empilement. Du fait de l'ondulation, cette tôle forme un ressort élastique suivant l'axe<B>10.</B> Referring to FIG. 2, the bundle of sheets comprises identical flat sheets 24 stacked with their coincident contours. In this case, the bundle of sheets further comprises a sheet <B> 26 </ B> having the same dimensions and even the same contour as the sheets 24. However, this sheet <B> 26 </ B> is corrugated according to its thickness. , that is to say that this undulation is visible on a view of the sheet according to its song. This corrugated sheet <B> 26 </ B> is stacked with other sheets 24, here between them, in the center of the stack. Due to the corrugation, this sheet forms an elastic spring along the axis <B> 10. </ B>
mode de réalisation de la figure<B>3</B> diffère celui la figure 2 seulement en ce que le paquet tôles comporte non plus une seule mais plusieurs tôles ondulées<B>26,</B> par exemple deux, et disposées façon<B>à</B> diviser l'empilement en trois parties comprenant le même nombre de tôles 24. embodiment of FIG. <B> 3 </ B> differs from FIG. 2 only in that the sheet metal package comprises not only one but several corrugated sheets <B> 26, for example two, and arranged <B> to </ B> divide the stack into three parts comprising the same number of sheets 24.
Dans le mode de réalisation de la figure 4, deux toles ondulées portent la référence<B>126</B> et forment cette fois les extrémités axiales du paquet de tôles d'où emergent les chignons<B>23.</B> On voit sur la figure que stator<B>18</B> est ici tenu dans le carter 4 par bords extrémité du paquet de tôles 20. Il est donc tenu dans le présent cas au moyen des toles ondulées ce qui réalise un bon amortissement axial des vibrations<B>à</B> la jonction entre le paquet tôles 20 et carter 4. In the embodiment of Figure 4, two corrugated sheets bear the reference <B> 126 </ B> and this time form the axial ends of the bunch of sheets from which emerge the buns <B> 23. </ B> We see in the figure that stator <B> 18 </ B> is here held in the casing 4 by the end edges of the plate package 20. It is therefore held in this case by means of corrugated sheets which achieves a good damping axial vibration <B> to </ B> the junction between the sheet 20 and housing package 4.
Selon le mode de réalisation de la figure<B>5,</B> le paquet de tôles ne comporte pas de tôle ondulée. Pour realiser le stator, on réalise tout d'abord empilement des tôles 24 identiques entre elles pour former le paquet de tôles nu. Puis on depose sur le chant externe<B>27</B> des tôles 24 empilées, exemple sur fraction de lempilement, une solution comprenant élastomère et que nous appellerons solution polymérique. Il peut s'agir d'une émulsion ou bien d'un élastomère en solution dans un solvant façon connue en soi. Les tôles empilées 24 du paquet tôles ont, comme la plupart des tôles, des faces principales<B>25</B> en regard qui ne sont pas rigoureusement coplanaires de sorte que leur contact n'est pas rigoureusement surfacique. Dès lors, ces faces<B>25</B> ménagent entre elles zones hors de contact. La solution deposée sur le chant<B>27</B> pénètre donc par capillarité entre les faces principales<B>25</B> des tôles 24 pour venir combler tout ou partie des espaces libres entre ces faces. on fait ensuite le nécessaire pour que cette solution se solidifie, par exemple en cuisant le paquet de tôles. According to the embodiment of Figure <B> 5, </ B> the sheet package does not have corrugated sheet. In order to produce the stator, sheets 24 which are identical to one another are first stacked together to form the bare sheet package. Then, on the outer edge <B> 27 </ B>, stacked sheets 24 are deposited, for example on a stack fraction, a solution comprising an elastomer and which we will call a polymeric solution. It may be an emulsion or an elastomer dissolved in a solvent known per se. The stacked sheets 24 of the sheet metal package have, like most of the sheets, facing main faces <B> 25 </ B> which are not rigorously coplanar so that their contact is not strictly surface. Therefore, these faces <B> 25 </ B> sparse between them areas out of contact. The solution deposited on the edge <B> 27 </ B> therefore penetrates by capillarity between the main faces <B> 25 </ B> of the plates 24 to fill all or part of the free spaces between these faces. the solution is then made to solidify, for example by baking the package of sheets.
obtient ainsi un paquet de tôles 20 dans lequel une partie au moins des faces<B>25</B> de certaines tôles 24 est recouverte d'un film<B>226</B> d'élastomère plus ou moins continu interposé axialement entre ces faces. Ce film elastique assure un amortissement des vibrations. On pourra utiliser par exemple une solution de polymère acrylate. Une partie<B>29</B> de la solution persiste par ailleurs sur le chant des tôles. thus obtain a bundle of sheets 20 in which at least a portion of the faces <B> 25 </ B> of certain sheets 24 is covered with a film <B> 226 </ B> of elastomer more or less continuous interposed axially between these faces. This elastic film ensures vibration damping. For example, an acrylate polymer solution may be used. A part <B> 29 </ B> of the solution persists on the edge of the sheets.
Alternativement, on pourra mettre en place la solution sur chacune des tôles 24 individuellement avant de former le paquet de tôles 20. Alternatively, the solution can be placed on each of the sheets 24 individually before forming the sheet package 20.
On peut aussi recouvrir l'intégralité du paquet de tôles avec cette solution en l'immergeant dans un bain de la solution. It is also possible to cover the entire package of sheets with this solution by immersing it in a bath of the solution.
Dans le mode de réalisation de la figure<B>7,</B> le paquet de tôles 20 comprend des feuilles d'élastomère <B>326</B> qui ont été interposées entre certaines des tôles 24 lors de la réalisation l'empilement qui forme le paquet de tôles. In the embodiment of FIG. 7, the sheet package comprises elastomer sheets 326 which have been interposed between some of the sheets 24 during production. stack that forms the package of sheets.
On pourra aussi, dans un autre mode de réalisation, remplacer les feuilles<B>326</B> par une colle élastique, par exemple<B>à</B> base de silicone, amortissant les vibrations et connue Bien entendu, on pourra apporter<B>à</B> l'invention de nombreuses modifications sans sortir du cadre de celle-ci. It is also possible, in another embodiment, to replace the sheets <B> 326 </ B> by an elastic adhesive, for example <B> to </ B> silicone base, damping the vibrations and known of course can bring <B> to </ B> the invention of many modifications without departing from the scope thereof.
Lfinvention pourra etre alternodémarreur ou un moteur. The invention may be an alternator starter or a motor.
Le paquet de tôles pourra comprendre un élément d'amortissement entre deux tôles 24 ainsi qu'un autre<B>à</B> une extrémité du paquet tôles. The package of plates may comprise a damping element between two sheets 24 and another <B> at one end of the sheet package.
L'invention pourra également s'appliquer aux machines tournantes dont le stator est bobiné au moyen de conducteurs en forme d'épingles.The invention can also be applied to rotating machines whose stator is wound by means of conductors in the form of pins.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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FR9916373A FR2803126B1 (en) | 1999-12-23 | 1999-12-23 | ALTERNATOR FOR STATOR VEHICLE WITH LITTLE NOISE OF MAGNETIC NOISE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9916373A FR2803126B1 (en) | 1999-12-23 | 1999-12-23 | ALTERNATOR FOR STATOR VEHICLE WITH LITTLE NOISE OF MAGNETIC NOISE |
Publications (2)
Publication Number | Publication Date |
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FR2803126A1 true FR2803126A1 (en) | 2001-06-29 |
FR2803126B1 FR2803126B1 (en) | 2006-04-14 |
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Application Number | Title | Priority Date | Filing Date |
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FR9916373A Expired - Fee Related FR2803126B1 (en) | 1999-12-23 | 1999-12-23 | ALTERNATOR FOR STATOR VEHICLE WITH LITTLE NOISE OF MAGNETIC NOISE |
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FR (1) | FR2803126B1 (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1503476A1 (en) * | 2002-05-08 | 2005-02-02 | Daikin Industries, Ltd. | Electric motor and compressor |
US10371213B2 (en) | 2009-09-25 | 2019-08-06 | Saint-Gobain Performance Plastics Rencol Limited | System, method and apparatus for tolerance ring control of slip interface sliding forces |
US11005334B2 (en) | 2017-12-15 | 2021-05-11 | Saint-Gobain Performance Plastics Rencol Limited | Annular member, method, and assembly for component displacement control |
US11710990B2 (en) | 2018-12-17 | 2023-07-25 | Nippon Steel Corporation | Laminated core with circumferentially spaced adhesion parts on teeth |
US11742129B2 (en) | 2018-12-17 | 2023-08-29 | Nippon Steel Corporation | Adhesively-laminated core, manufacturing method thereof, and electric motor |
US11855485B2 (en) | 2018-12-17 | 2023-12-26 | Nippon Steel Corporation | Laminated core, method of manufacturing same, and electric motor |
US11863017B2 (en) | 2018-12-17 | 2024-01-02 | Nippon Steel Corporation | Laminated core and electric motor |
US11915860B2 (en) | 2018-12-17 | 2024-02-27 | Nippon Steel Corporation | Laminated core and electric motor |
US11923130B2 (en) | 2018-12-17 | 2024-03-05 | Nippon Steel Corporation | Laminated core and electric motor |
US11973369B2 (en) | 2018-12-17 | 2024-04-30 | Nippon Steel Corporation | Laminated core with center electrical steel sheets adhered with adhesive and some electrical steel sheets fixed to each other on both ends of the center sheets |
US11979059B2 (en) | 2018-12-17 | 2024-05-07 | Nippon Steel Corporation | Laminated core and electric motor |
US11990795B2 (en) | 2018-12-17 | 2024-05-21 | Nippon Steel Corporation | Adhesively-laminated core for stator, method of manufacturing same, and electric motor |
US11996231B2 (en) | 2018-12-17 | 2024-05-28 | Nippon Steel Corporation | Laminated core and electric motor |
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FR2343354A1 (en) * | 1976-03-03 | 1977-09-30 | Bosch Gmbh Robert | ELECTRIC MACHINE WITH REDUCED SOUND LEVEL |
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WO1999033156A1 (en) * | 1997-12-19 | 1999-07-01 | Minnesota Mining And Manufacturing Company | Internally damped stator, rotor, and transformer and a method of making |
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US2422591A (en) * | 1943-04-12 | 1947-06-17 | Sigmund Corp | Magnetizable core |
FR2343354A1 (en) * | 1976-03-03 | 1977-09-30 | Bosch Gmbh Robert | ELECTRIC MACHINE WITH REDUCED SOUND LEVEL |
US5315200A (en) * | 1992-07-16 | 1994-05-24 | Ford Motor Company | Electrical motor stator installation |
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Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1503476A1 (en) * | 2002-05-08 | 2005-02-02 | Daikin Industries, Ltd. | Electric motor and compressor |
EP1503476A4 (en) * | 2002-05-08 | 2007-01-24 | Daikin Ind Ltd | Electric motor and compressor |
US10371213B2 (en) | 2009-09-25 | 2019-08-06 | Saint-Gobain Performance Plastics Rencol Limited | System, method and apparatus for tolerance ring control of slip interface sliding forces |
US11005334B2 (en) | 2017-12-15 | 2021-05-11 | Saint-Gobain Performance Plastics Rencol Limited | Annular member, method, and assembly for component displacement control |
US11710990B2 (en) | 2018-12-17 | 2023-07-25 | Nippon Steel Corporation | Laminated core with circumferentially spaced adhesion parts on teeth |
US11742129B2 (en) | 2018-12-17 | 2023-08-29 | Nippon Steel Corporation | Adhesively-laminated core, manufacturing method thereof, and electric motor |
US11855485B2 (en) | 2018-12-17 | 2023-12-26 | Nippon Steel Corporation | Laminated core, method of manufacturing same, and electric motor |
US11863017B2 (en) | 2018-12-17 | 2024-01-02 | Nippon Steel Corporation | Laminated core and electric motor |
US11915860B2 (en) | 2018-12-17 | 2024-02-27 | Nippon Steel Corporation | Laminated core and electric motor |
US11923130B2 (en) | 2018-12-17 | 2024-03-05 | Nippon Steel Corporation | Laminated core and electric motor |
US11973369B2 (en) | 2018-12-17 | 2024-04-30 | Nippon Steel Corporation | Laminated core with center electrical steel sheets adhered with adhesive and some electrical steel sheets fixed to each other on both ends of the center sheets |
US11979059B2 (en) | 2018-12-17 | 2024-05-07 | Nippon Steel Corporation | Laminated core and electric motor |
US11990795B2 (en) | 2018-12-17 | 2024-05-21 | Nippon Steel Corporation | Adhesively-laminated core for stator, method of manufacturing same, and electric motor |
US11996231B2 (en) | 2018-12-17 | 2024-05-28 | Nippon Steel Corporation | Laminated core and electric motor |
Also Published As
Publication number | Publication date |
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FR2803126B1 (en) | 2006-04-14 |
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