WO2009068079A1 - Electronically commutated disc rotor motor with a large number of composite printed circuit boards which comprise conductor layers - Google Patents
Electronically commutated disc rotor motor with a large number of composite printed circuit boards which comprise conductor layers Download PDFInfo
- Publication number
- WO2009068079A1 WO2009068079A1 PCT/EP2007/062860 EP2007062860W WO2009068079A1 WO 2009068079 A1 WO2009068079 A1 WO 2009068079A1 EP 2007062860 W EP2007062860 W EP 2007062860W WO 2009068079 A1 WO2009068079 A1 WO 2009068079A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electric motor
- conductor
- rotor
- electronically commutated
- windings
- 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
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/26—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors consisting of printed conductors
-
- 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
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2793—Rotors axially facing stators
- H02K1/2795—Rotors axially facing stators the rotor consisting of two or more circumferentially positioned magnets
Definitions
- the invention relates to a brushless, electronically commutated electric motor which has a permanent magnet-tipped rotor and a stator constructed in multilayer technology.
- EP 0 374 805 B1 discloses an electronically commutated synchronous motor drive which has a winding multilayer which is laminarly subdivided into four layers, namely three winding phases and one position for an SMD circuit.
- the windings produced using multilayer technology can be designed, for example, as an 8-pole 5-phase involute winding or as a 12-pole 3-phase spiral winding.
- radially outer, non-torque-forming interconnects are broadened outside the magnetic air gap field, while the width of the interconnects immersed in the air-gap field is substantially constant. This should be achievable at reasonable production cost a good concentricity.
- the invention has for its object to provide a rotary, electronically commutated drive with a particularly favorable space-power ratio. Summary of the invention
- the motor is designed as a brushless, electronically commutated electric motor, which comprises a permanent magnet-equipped rotor and a stator which can be supplied with windings.
- the stator is designed as a composite board, that is in multilayer technology, with at least 16 conductor layers forming the windings of the motor.
- the individual windings have straight conductor sections, which extend in the radial direction of the electric motor, wherein wedge-shaped intermediate spaces are formed between two circumferentially adjacent such conductor sections.
- the individual permanent magnets of the rotor have in an advantageous embodiment, a trapezoidal basic shape, whereby a particularly good surface and volume utilization can be achieved. Regardless of the exact geometry of the permanent magnets, these are preferably made of rare earths. Examples include neodymium-iron-boron magnets.
- Each conductor layer of the stator is in a preferred embodiment at least 70% coated with conductor material, in particular copper.
- the conductor material in particular copper.
- Area filling factor is thus at least 0.7.
- the conductor material preferably occupies a volume of at least 30%.
- the corresponding value 0.3 is also referred to as conductor material volume filling factor.
- the mass fraction of the conductor material on the composite board is preferably at least 2/3.
- Each conductor layer in a preferred embodiment, has a thickness of at least 70 ⁇ m.
- FIG. 2 shows the layer structure of the stator of the electric motor according to FIG. 1,
- FIG. 3 shows contours of permanent magnets of the rotor of FIG
- FIG. 4 shows partial windings of the electric motor according to FIG. 1.
- electric motor 1 has a bestrombare windings 2 supporting stator 3 and connected to a shaft 4 rotor 5, which is equipped with permanent magnets 6.
- a shaft 4 rotor 5 which is equipped with permanent magnets 6.
- the basic mode of operation of the brushless electric motor 1 operating as a rotary synchronous motor and designed as a disk rotor reference is made by way of example to EP 0 152 508 B1.
- the ironless stator 3 of the electric motor 1 is constructed in multilayer technology, as will be explained in more detail below with reference to FIG.
- Carrier layers 7 made of an insulating prepreg material are on both sides with a conductor layer
- the stator 3 thus comprises 20 conductor layers 8.
- the axial direction of the rotor 5 given by the position of the shaft 4 and thus of the entire electric motor 1 is designated A in FIGS. 1 and 2.
- FIG. 3 illustrates a detail of the rotor 5 on the basis of two individual permanent magnets 6.
- Each permanent magnet 6 has in plan view, that is, in the axial direction, the basic shape of a trapezoid, so that the available on the rotor 5 for the arrangement of the permanent magnets 6 annular surface is used evenly.
- the arrow labeled R in FIG. 3 indicates the radial direction of the electric motor 1.
- a single winding 2 formed by a conductor layer 8 also has the basic shape of a trapezoid.
- Individual conductor sections 11 of the winding 2 extend exactly in the radial direction R.
- the radial conductor sections 11 and connecting them, extending substantially in the tangential direction conductor sections 12 form a total of 10 turns 13, which fill the trapezoidal surface on which the winding 2 is located for the most part.
- the layer shown in fragmentary form in FIG. 4, in which the conductor layer 8 formed as a grown-up thick copper, is at least 70% covered by conductor material.
- the conductor material occupies a proportion of at least 30%.
- the mass fraction of the conductor material on the total mass of the stator 3 is at least 2/3.
- a force of at least 4 N / cm 3 can be generated with the electric motor 1.
- the conductor sections 12 running in the tangential direction have a slightly bent shape, but, deviating from this, they could also have a circular arc shape.
- the extending in the radial direction R conductor sections 11 are not curved in any case.
- Each between two circumferentially adjacent radial conductor sections 11 a wedge-shaped gap 14 is formed. This is measured such that in the radially inner region of the winding 2 is still given a sufficient isolation distance between the conductor sections 11.
- Each conductor section 11 has a constant width over its entire length.
- the width of the radial conductor sections 11 coincides with the width of the tangential conductor sections 12.
- a straight conductor section 11 of the outermost turn 13 has a length which corresponds to the entire radial extent of the turn 13.
- the space available in the conductor layer 8 is optimally utilized for conductor sections 11 which contribute to the generation of a torque.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Windings For Motors And Generators (AREA)
Abstract
Description
Bezeichnung der Erfindung Name of the invention
ELEKTRONISCH KOMMUTIERTΞR SCHEIBENLAUFERMOTOR MIT EINER VIELZAHL VON LEITERSCHICHTEN UMFASSENDEN VERBUNDPLATINENELECTRONICALLY COMMUTATED DISC OPERATOR WITH COMPONENTS COMPRISING A VARIETY OF CONDUCTIVE LAYERS
Beschreibungdescription
Gebiet der ErfindungField of the invention
Die Erfindung betrifft einen bürstenlosen, elektronisch kommutierten Elektromotor, welcher einen permanentmagnetbestückten Rotor sowie einen in Multilay- er-Technik aufgebauten Stator aufweist.The invention relates to a brushless, electronically commutated electric motor which has a permanent magnet-tipped rotor and a stator constructed in multilayer technology.
Hintergrund der ErfindungBackground of the invention
Aus der EP 0 374 805 B1 ist ein elektronisch kommutierter Synchronnnotorantrieb bekannt, welcher einen Wicklungs-Multilayer aufweist, der laminar in vier Lagen, nämlich drei Wicklungsphasen sowie eine Lage für eine SMD- Schaltung, unterteilt ist. Die in Multilayer-Technologie hergestellten Wicklun- gen können beispielsweise als 8-polige 5-Phasen-Evolventenwicklung oder als 12-polige 3-Phasen-Spiralwicklung ausgebildet sein. In jedem Fall sind bei dem aus der EP 0 374 805 B1 bekannten Elektromotor radial außenliegende, nicht drehmomentbildende Leiterbahnen außerhalb des magnetischen Luftspaltfelds verbreitert, während die Breite der in das Luftspaltfeld eintauchenden Leiter- bahnen im Wesentlichen konstant ist. Damit soll bei vertretbarem Herstellungsaufwand ein guter Rundlauf erzielbar sein.EP 0 374 805 B1 discloses an electronically commutated synchronous motor drive which has a winding multilayer which is laminarly subdivided into four layers, namely three winding phases and one position for an SMD circuit. The windings produced using multilayer technology can be designed, for example, as an 8-pole 5-phase involute winding or as a 12-pole 3-phase spiral winding. In any case, in the case of the electric motor known from EP 0 374 805 B1, radially outer, non-torque-forming interconnects are broadened outside the magnetic air gap field, while the width of the interconnects immersed in the air-gap field is substantially constant. This should be achievable at reasonable production cost a good concentricity.
Aufgabe der ErfindungObject of the invention
Der Erfindung liegt die Aufgabe zugrunde, einen rotativen, elektronisch kommutierten Antrieb mit einem besonders günstigen Bauraum-Leistungs- Verhältnis bereitzustellen. Zusammenfassung der ErfindungThe invention has for its object to provide a rotary, electronically commutated drive with a particularly favorable space-power ratio. Summary of the invention
Diese Aufgabe wird erfindungsgemäß gelöst durch einen Elektromotor mit den Merkmalen des Anspruchs 1 sowie durch ein Verfahren zum Betrieb eines Elektromotors mit den Merkmalen des Anspruchs 8. Im Folgenden im Zusammenhang mit der Vorrichtung erläuterte Ausgestaltungen und Vorteile der Erfindung gelten sinngemäß auch für das Verfahren und umgekehrt.This object is achieved by an electric motor with the features of claim 1 and by a method for operating an electric motor with the features of claim 8. In the following explained in connection with the device embodiments and advantages of the invention apply mutatis mutandis to the method and vice versa ,
Der Motor ist als bürstenloser, elektronisch kommutierter Elektromotor ausge- bildet, welcher einen permanentmagnetbestückten Rotor sowie einen bestrom- bare Wicklungen aufweisenden Stator umfasst. Der Stator ist als Verbundplatine, das heißt in Multilayer-Technologie, aufgebaut, wobei mindestens 16 Leiterschichten die Wicklungen des Motors bilden. Die einzelnen Wicklungen weisen gerade Leiterabschnitte auf, welche sich in radialer Richtung des Elektro- motors erstrecken, wobei zwischen zwei in Umfangsrichtung benachbarten derartigen Leiterabschnitten keilförmige Zwischenräume gebildet sind.The motor is designed as a brushless, electronically commutated electric motor, which comprises a permanent magnet-equipped rotor and a stator which can be supplied with windings. The stator is designed as a composite board, that is in multilayer technology, with at least 16 conductor layers forming the windings of the motor. The individual windings have straight conductor sections, which extend in the radial direction of the electric motor, wherein wedge-shaped intermediate spaces are formed between two circumferentially adjacent such conductor sections.
Die einzelnen Permanentmagnete des Rotors weisen in vorteilhafter Ausgestaltung eine trapezartige Grundform auf, womit eine besonders gute Flächen- und Volumenausnutzung erzielbar ist. Unabhängig von der genauen Geometrie der Permanentmagnete sind diese vorzugsweise aus seltenen Erden gefertigt. Beispielhaft sind Neodym-Eisen-Bor-Magnete zu nennen.The individual permanent magnets of the rotor have in an advantageous embodiment, a trapezoidal basic shape, whereby a particularly good surface and volume utilization can be achieved. Regardless of the exact geometry of the permanent magnets, these are preferably made of rare earths. Examples include neodymium-iron-boron magnets.
Jede Leiterschicht des Stators ist in bevorzugter Ausgestaltung zu mindestens 70 % mit Leitermaterial, insbesondere Kupfer, belegt. Der Leitermaterial-Each conductor layer of the stator is in a preferred embodiment at least 70% coated with conductor material, in particular copper. The conductor material
Flächenfüll-Faktor beträgt somit mindestens 0,7. Bezogen auf den Rauminhalt der gesamten Verbundplatine nimmt das Leitermaterial bevorzugt ein Volumen von mindestens 30 % ein. Der entsprechende Wert 0,3 wird auch als Leiterma- terial-Volumenfüll-Faktor bezeichnet. Der Massenanteil des Leitermaterials an der Verbundplatine beträgt vorzugsweise mindestens 2/3. Jede Leiterschicht weist in bevorzugter Ausgestaltung eine Dicke von mindestens 70 μm auf. Nachfolgend wird ein Ausführungsbeispiel der Erfindung anhand einer Zeichnung näher erläutert. Hierin zeigen, teilweise in grob schematisierter Darstellung:Area filling factor is thus at least 0.7. Based on the volume of the entire composite board, the conductor material preferably occupies a volume of at least 30%. The corresponding value 0.3 is also referred to as conductor material volume filling factor. The mass fraction of the conductor material on the composite board is preferably at least 2/3. Each conductor layer, in a preferred embodiment, has a thickness of at least 70 μm. An embodiment of the invention will be explained in more detail with reference to a drawing. Herein show, partly in a rough schematic representation:
Kurze Beschreibung der ZeichnungShort description of the drawing
Figur 1 im Querschnitt einen elektronisch kommutierten E- lektromotor,1 shows in cross section an electronically commutated electric motor,
Figur 2 den Schichtaufbau des Stators des Elektromotors nach Figur 1 ,FIG. 2 shows the layer structure of the stator of the electric motor according to FIG. 1,
Figur 3 Konturen von Permanentmagneten des Rotors desFIG. 3 shows contours of permanent magnets of the rotor of FIG
Elektromotors nach Figur 1 ,Electric motor according to FIG. 1,
Figur 4 ausschnittsweise Wicklungen des Elektromotors nach Figur 1.FIG. 4 shows partial windings of the electric motor according to FIG. 1.
Ausführliche Beschreibung der ZeichnungDetailed description of the drawing
Ein in Figur 1 stark vereinfacht und nicht maßstäblich dargestellter Elektromotor 1 weist einen bestrombare Wicklungen 2 tragenden Stator 3 sowie einen mit einer Welle 4 verbundenen Rotor 5 auf, welcher mit Permanentmagneten 6 bestückt ist. Hinsichtlich der prinzipiellen Funktionsweise des als rotativer Syn- chronmotor arbeitenden, als Scheibenläufer ausgebildeten bürstenlosen Elektromotors 1 wird beispielhaft auf die EP 0 152 508 B1 verwiesen.A simplified and not to scale shown in Figure 1 electric motor 1 has a bestrombare windings 2 supporting stator 3 and connected to a shaft 4 rotor 5, which is equipped with permanent magnets 6. With regard to the basic mode of operation of the brushless electric motor 1 operating as a rotary synchronous motor and designed as a disk rotor, reference is made by way of example to EP 0 152 508 B1.
Der eisenlose Stator 3 des Elektromotors 1 ist in Multilayer-Technologie aufgebaut, wie im Folgenden anhand Figur 2 näher erläutert wird. Trägerschichten 7 aus einem isolierenden Prepreg-Material sind beidseitig mit einer LeiterschichtThe ironless stator 3 of the electric motor 1 is constructed in multilayer technology, as will be explained in more detail below with reference to FIG. Carrier layers 7 made of an insulating prepreg material are on both sides with a conductor layer
8 aus Kupfer mit einer Stärke von 70 μm beschichtet. Insgesamt 10 solcher jeweils aus einer Trägerschicht 7 und zwei Leiterschichten 8 gebildeten Lagen8 of copper coated with a thickness of 70 microns. A total of 10 such layers each formed from a carrier layer 7 and two conductor layers 8
9 sind jeweils durch eine Zwischenschicht 10, beispielsweise aus dem Leiter- plattenmaterial FR4, voneinander getrennt. Die Zwischenschichten 10 haben die gleiche Dicke wie die Trägerschichten 7, nämlich 100 μm. Der Stator 3 um- fasst somit 20 Leiterschichten 8. Die durch die Lage der Welle 4 gegebene axiale Richtung des Rotors 5 und damit des gesamten Elektromotors 1 ist in den Figuren 1 und 2 mit A bezeichnet.9 are each connected by an intermediate layer 10, for example, from the conductor plate material FR4, separated from each other. The intermediate layers 10 have the same thickness as the carrier layers 7, namely 100 microns. The stator 3 thus comprises 20 conductor layers 8. The axial direction of the rotor 5 given by the position of the shaft 4 and thus of the entire electric motor 1 is designated A in FIGS. 1 and 2.
In Figur 3 ist eine Einzelheit des Rotors 5 anhand von zwei einzelnen Permanentmagneten 6 veranschaulicht. Jeder Permanentmagnet 6 weist in Draufsicht, das heißt in axialer Blickrichtung, die Grundform eines Trapezes auf, so dass die auf dem Rotor 5 für die Anordnung der Permanentmagnete 6 zur Verfügung stehende ringförmige Fläche gleichmäßig ausgenutzt ist. Der in Figur 3 mit R bezeichnete Pfeil kennzeichnet die radiale Richtung des Elektromotors 1.FIG. 3 illustrates a detail of the rotor 5 on the basis of two individual permanent magnets 6. Each permanent magnet 6 has in plan view, that is, in the axial direction, the basic shape of a trapezoid, so that the available on the rotor 5 for the arrangement of the permanent magnets 6 annular surface is used evenly. The arrow labeled R in FIG. 3 indicates the radial direction of the electric motor 1.
Eine einzelne durch eine Leiterschicht 8 gebildete Wicklung 2 weist, wie in Figur 4 erkennbar, ebenfalls die Grundform eines Trapezes auf. Einzelne Leiterabschnitte 11 der Wicklung 2 verlaufen exakt in radialer Richtung R. Die radialen Leiterabschnitte 11 sowie diese verbindende, im Wesentlichen in tangentialer Richtung verlaufende Leiterabschnitte 12 bilden insgesamt 10 Windungen 13, welche die Trapezfläche, auf der sich die Wicklung 2 befindet, größtenteils ausfüllen. Die in Figur 4 ausschnittsweise dargestellte Schicht, in welcher sich die als aufgewachsenes Dickkupfer ausgebildete Leiterschicht 8 befindet, ist zu mindestens 70 % von Leitermaterial bedeckt. Bezogen auf das gesamte Volumen des als Multilayer-Bauteil ausgebildeten Stator 3 nimmt das Leitermaterial einen Anteil von mindestens 30 % ein. Der Massenanteil des Leitermaterials an der Gesamtmasse des Stators 3 beträgt mindestens 2/3. Auf das Volumen des Stators 3 bezogen ist mit dem Elektromotor 1 eine Kraft von mindestens 4 N/cm3 erzeugbar.As can be seen in FIG. 4, a single winding 2 formed by a conductor layer 8 also has the basic shape of a trapezoid. Individual conductor sections 11 of the winding 2 extend exactly in the radial direction R. The radial conductor sections 11 and connecting them, extending substantially in the tangential direction conductor sections 12 form a total of 10 turns 13, which fill the trapezoidal surface on which the winding 2 is located for the most part. The layer shown in fragmentary form in FIG. 4, in which the conductor layer 8 formed as a grown-up thick copper, is at least 70% covered by conductor material. Based on the total volume of the stator 3 formed as a multilayer component, the conductor material occupies a proportion of at least 30%. The mass fraction of the conductor material on the total mass of the stator 3 is at least 2/3. Based on the volume of the stator 3, a force of at least 4 N / cm 3 can be generated with the electric motor 1.
Die in tangentialer Richtung verlaufenden Leiterabschnitte 12 haben im Aus- führungsbeispiel eine leicht abgeknickte Form, könnten jedoch abweichend hiervon auch kreisbogenförmig gestaltet sein. Die in radialer Richtung R verlaufenden Leiterabschnitte 11 sind in jedem Fall nicht gekrümmt. Jeweils zwischen zwei in Umfangshchtung benachbarten radialen Leiterabschnitten 11 ist ein keilförmiger Zwischenraum 14 gebildet. Dieser ist derart gemessen, dass im radial inneren Bereich der Wicklung 2 noch ein ausreichender Isolationsabstand zwischen den Leiterabschnitten 11 gegeben ist. Jeder Leiterabschnitt 11 weist eine über seine gesamte Länge konstante Breite auf. Die Breite der ra- dialen Leiterabschnitte 11 stimmt mit der Breite der tangentialen Leiterabschnitte 12 überein. Ein gerader Leiterabschnitt 11 der äußersten Windung 13 weist eine Länge auf, die der gesamten radialen Erstreckung der Windung 13 entspricht. Damit wird der in der Leiterschicht 8 zur Verfügung stehende Raum optimal für Leiterabschnitte 11 , welche zur Erzeugung eines Drehmoments beitragen, genutzt. In the exemplary embodiment, the conductor sections 12 running in the tangential direction have a slightly bent shape, but, deviating from this, they could also have a circular arc shape. The extending in the radial direction R conductor sections 11 are not curved in any case. Each between two circumferentially adjacent radial conductor sections 11 a wedge-shaped gap 14 is formed. This is measured such that in the radially inner region of the winding 2 is still given a sufficient isolation distance between the conductor sections 11. Each conductor section 11 has a constant width over its entire length. The width of the radial conductor sections 11 coincides with the width of the tangential conductor sections 12. A straight conductor section 11 of the outermost turn 13 has a length which corresponds to the entire radial extent of the turn 13. Thus, the space available in the conductor layer 8 is optimally utilized for conductor sections 11 which contribute to the generation of a torque.
Bezugszeichenreference numeral
1 Elektromotor1 electric motor
2 Wicklung2 winding
3 Stator3 stators
4 Welle4 wave
5 Rotor5 rotor
6 Permanentmagnet6 permanent magnet
7 Trägerschicht7 carrier layer
8 Leiterschicht8 conductor layer
9 Lage9 location
10 Zwischenschicht10 intermediate layer
11 Leiterabschnitt11 conductor section
12 Leiterabschnitt12 conductor section
13 Windung13 turn
14 Zwischenraum14 gap
A axiale RichtungA axial direction
R radiale Richtung R radial direction
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2007/062860 WO2009068079A1 (en) | 2007-11-27 | 2007-11-27 | Electronically commutated disc rotor motor with a large number of composite printed circuit boards which comprise conductor layers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2007/062860 WO2009068079A1 (en) | 2007-11-27 | 2007-11-27 | Electronically commutated disc rotor motor with a large number of composite printed circuit boards which comprise conductor layers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2009068079A1 true WO2009068079A1 (en) | 2009-06-04 |
Family
ID=39734928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2007/062860 Ceased WO2009068079A1 (en) | 2007-11-27 | 2007-11-27 | Electronically commutated disc rotor motor with a large number of composite printed circuit boards which comprise conductor layers |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2009068079A1 (en) |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013214417A1 (en) | 2013-07-24 | 2015-01-29 | Schaeffler Technologies Gmbh & Co. Kg | Steering unit for a steer-by-wire control system |
| US9673684B2 (en) | 2015-10-02 | 2017-06-06 | E-Circuit Motors, Inc. | Structures and methods for thermal management in printed circuit board stators |
| US9673688B2 (en) | 2015-10-02 | 2017-06-06 | E-Circuit Motors, Inc. | Apparatus and method for forming a magnet assembly |
| US9800109B2 (en) | 2015-10-02 | 2017-10-24 | E-Circuit Motors, Inc. | Structures and methods for controlling losses in printed circuit boards |
| US9859763B2 (en) | 2015-10-02 | 2018-01-02 | E-Circuit Motors, Inc. | Structures and methods for controlling losses in printed circuit boards |
| EP3293871A1 (en) * | 2016-09-07 | 2018-03-14 | ThyssenKrupp Elevator AG | Elevator door actuator |
| US10170953B2 (en) | 2015-10-02 | 2019-01-01 | E-Circuit Motors, Inc. | Planar composite structures and assemblies for axial flux motors and generators |
| US11005322B2 (en) | 2017-06-05 | 2021-05-11 | E-Circuit Motors, Inc. | Rotor assemblies for axial flux machines |
| US11121614B2 (en) | 2017-06-05 | 2021-09-14 | E-Circuit Motors, Inc. | Pre-warped rotors for control of magnet-stator gap in axial flux machines |
| US11336130B1 (en) | 2021-08-17 | 2022-05-17 | E-Circuit Motors, Inc. | Low-loss planar winding configurations for an axial flux machine |
| US11527933B2 (en) | 2015-10-02 | 2022-12-13 | E-Circuit Motors, Inc. | Stator and rotor design for periodic torque requirements |
| US11626779B2 (en) | 2021-02-17 | 2023-04-11 | E-Circuit Motors, Inc. | Planar stator having discrete segments with different winding characteristics |
| US11751330B2 (en) | 2021-07-30 | 2023-09-05 | E-Circuit Motors, Inc. | Magnetic material filled printed circuit boards and printed circuit board stators |
| US11831211B2 (en) | 2017-06-05 | 2023-11-28 | E-Circuit Motors, Inc. | Stator and rotor design for periodic torque requirements |
| US11881751B2 (en) | 2017-01-11 | 2024-01-23 | Infinitum Electric, Inc. | System and apparatus for segmented axial field rotary energy device |
| US12219698B2 (en) | 2023-03-28 | 2025-02-04 | Infinitum Electric Inc. | Printed circuit board dielectric molding, machining and electrolytic metallization |
| US12224635B2 (en) | 2022-05-02 | 2025-02-11 | Infinitum Electric Inc. | Printed circuit board stator axial field rotary energy device with ferromagnetic yoke |
| US12336113B2 (en) | 2023-03-28 | 2025-06-17 | Infinitum Electric Inc. | Method of printed circuit board dielectric molding or machining and electrolytic metallization |
| USRE50666E1 (en) | 2018-07-10 | 2025-11-18 | Infinitum Electric Inc. | System and apparatus for axial field rotary energy device |
| US12537428B2 (en) | 2025-02-21 | 2026-01-27 | Infinitum Electric Inc. | System and apparatus for segmented axial field rotary energy device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5836145A (en) * | 1981-08-28 | 1983-03-03 | Kangiyou Denki Kiki Kk | Laminated wiring unit |
| JPS59162738A (en) * | 1983-03-07 | 1984-09-13 | Hitachi Ltd | Printed coil |
| EP0203204A1 (en) * | 1984-11-30 | 1986-12-03 | Fanuc Ltd. | Disc-shaped stator of ac motor and method of producing the same |
| WO2004073365A2 (en) * | 2003-02-07 | 2004-08-26 | Core Innovation, Llc | Conductor optimized axial field rotary energy device |
-
2007
- 2007-11-27 WO PCT/EP2007/062860 patent/WO2009068079A1/en not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5836145A (en) * | 1981-08-28 | 1983-03-03 | Kangiyou Denki Kiki Kk | Laminated wiring unit |
| JPS59162738A (en) * | 1983-03-07 | 1984-09-13 | Hitachi Ltd | Printed coil |
| EP0203204A1 (en) * | 1984-11-30 | 1986-12-03 | Fanuc Ltd. | Disc-shaped stator of ac motor and method of producing the same |
| WO2004073365A2 (en) * | 2003-02-07 | 2004-08-26 | Core Innovation, Llc | Conductor optimized axial field rotary energy device |
Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013214417A1 (en) | 2013-07-24 | 2015-01-29 | Schaeffler Technologies Gmbh & Co. Kg | Steering unit for a steer-by-wire control system |
| US11527933B2 (en) | 2015-10-02 | 2022-12-13 | E-Circuit Motors, Inc. | Stator and rotor design for periodic torque requirements |
| US9673684B2 (en) | 2015-10-02 | 2017-06-06 | E-Circuit Motors, Inc. | Structures and methods for thermal management in printed circuit board stators |
| US9673688B2 (en) | 2015-10-02 | 2017-06-06 | E-Circuit Motors, Inc. | Apparatus and method for forming a magnet assembly |
| US9800109B2 (en) | 2015-10-02 | 2017-10-24 | E-Circuit Motors, Inc. | Structures and methods for controlling losses in printed circuit boards |
| US9859763B2 (en) | 2015-10-02 | 2018-01-02 | E-Circuit Motors, Inc. | Structures and methods for controlling losses in printed circuit boards |
| US10170953B2 (en) | 2015-10-02 | 2019-01-01 | E-Circuit Motors, Inc. | Planar composite structures and assemblies for axial flux motors and generators |
| US10211694B1 (en) | 2015-10-02 | 2019-02-19 | E-Circuit Motors, Inc. | Structures and methods for thermal management in printed circuit board stators |
| US10256690B2 (en) | 2015-10-02 | 2019-04-09 | E-Circuit Motors, Inc. | Structures and methods for controlling losses in printed circuit boards |
| EP3293871A1 (en) * | 2016-09-07 | 2018-03-14 | ThyssenKrupp Elevator AG | Elevator door actuator |
| US12255493B2 (en) | 2017-01-11 | 2025-03-18 | Infinitum Electric Inc. | System and apparatus for segmented axial field rotary energy device |
| DE112018000356B4 (en) | 2017-01-11 | 2025-02-20 | Infinitum Electric Inc. | System and apparatus for a segmented axial field rotational energy device |
| DE112018000357B4 (en) * | 2017-01-11 | 2025-05-08 | Infinitum Electric Inc. | Axial field rotational energy device |
| US11881751B2 (en) | 2017-01-11 | 2024-01-23 | Infinitum Electric, Inc. | System and apparatus for segmented axial field rotary energy device |
| US11831211B2 (en) | 2017-06-05 | 2023-11-28 | E-Circuit Motors, Inc. | Stator and rotor design for periodic torque requirements |
| US11855484B2 (en) | 2017-06-05 | 2023-12-26 | E-Circuit Motors, Inc. | Rotor assemblies for axial flux machines |
| US11005322B2 (en) | 2017-06-05 | 2021-05-11 | E-Circuit Motors, Inc. | Rotor assemblies for axial flux machines |
| US11121614B2 (en) | 2017-06-05 | 2021-09-14 | E-Circuit Motors, Inc. | Pre-warped rotors for control of magnet-stator gap in axial flux machines |
| USRE50666E1 (en) | 2018-07-10 | 2025-11-18 | Infinitum Electric Inc. | System and apparatus for axial field rotary energy device |
| US11626779B2 (en) | 2021-02-17 | 2023-04-11 | E-Circuit Motors, Inc. | Planar stator having discrete segments with different winding characteristics |
| US12424901B2 (en) | 2021-02-17 | 2025-09-23 | E-Circuit Motors, Inc. | Planar stator configurations for axial flux machines |
| US11751330B2 (en) | 2021-07-30 | 2023-09-05 | E-Circuit Motors, Inc. | Magnetic material filled printed circuit boards and printed circuit board stators |
| US12495493B2 (en) | 2021-07-30 | 2025-12-09 | E-Circuit Motors, Inc. | Magnetic material filled printed circuit boards and printed circuit board stators |
| US11336130B1 (en) | 2021-08-17 | 2022-05-17 | E-Circuit Motors, Inc. | Low-loss planar winding configurations for an axial flux machine |
| US12224635B2 (en) | 2022-05-02 | 2025-02-11 | Infinitum Electric Inc. | Printed circuit board stator axial field rotary energy device with ferromagnetic yoke |
| US12336113B2 (en) | 2023-03-28 | 2025-06-17 | Infinitum Electric Inc. | Method of printed circuit board dielectric molding or machining and electrolytic metallization |
| US12219698B2 (en) | 2023-03-28 | 2025-02-04 | Infinitum Electric Inc. | Printed circuit board dielectric molding, machining and electrolytic metallization |
| US12537428B2 (en) | 2025-02-21 | 2026-01-27 | Infinitum Electric Inc. | System and apparatus for segmented axial field rotary energy device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2009068079A1 (en) | Electronically commutated disc rotor motor with a large number of composite printed circuit boards which comprise conductor layers | |
| EP2115858B1 (en) | Polyphase electrical machine | |
| DE2731295A1 (en) | LAMINATED WINDING FOR ELECTRIC MACHINERY AND EQUIPMENT | |
| EP0394527B1 (en) | Heteropolary excited synchronous machine | |
| DE102011111352B4 (en) | Electric motor with ironless winding | |
| AT522711A1 (en) | Stator for an axial flux machine | |
| DE112009002090T5 (en) | Rotating electric machine | |
| EP2122809A2 (en) | Electric machine | |
| WO2019121280A1 (en) | Insulation of sub-conductors of a dynamoelectric machine | |
| EP3167537A1 (en) | Rotor comprising protruding webs | |
| DE60022978T2 (en) | Alternator | |
| DE102010062271A1 (en) | Household appliance i.e. washing machine, has electric drive motor for driving movable component, and stator winding formed by planar strip conductors, where planar carrier i.e. thin film, on which strip conductors are attached, are printed | |
| EP2768117A1 (en) | Rotor of a reluctance machine | |
| EP2225816A1 (en) | Electric linear drive | |
| WO2010145841A2 (en) | Stator for an electric motor | |
| EP3145059A1 (en) | Cage rotor | |
| DE4419780A1 (en) | Annular stator with segmented toroidal winding for rotating machine | |
| DE102012018888B4 (en) | electric motor | |
| DE102020105915A1 (en) | Axial flux motor and driverless transport vehicle | |
| EP2394353B1 (en) | Dc motor | |
| DE102014012824A1 (en) | Switching ring for an electric machine | |
| WO2009068356A1 (en) | Electric machine | |
| EP2067237B1 (en) | Synchronous machine | |
| DE102020215611A1 (en) | Method for manufacturing an air-core coil and an electrical machine with an air-core coil manufactured using this method | |
| DE102018112186A1 (en) | Rotor or stator of an electric motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 07847387 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 07847387 Country of ref document: EP Kind code of ref document: A1 |