EP4406096A1 - Magnetvorrichtung für eine elektrische maschine - Google Patents
Magnetvorrichtung für eine elektrische maschineInfo
- Publication number
- EP4406096A1 EP4406096A1 EP22782879.5A EP22782879A EP4406096A1 EP 4406096 A1 EP4406096 A1 EP 4406096A1 EP 22782879 A EP22782879 A EP 22782879A EP 4406096 A1 EP4406096 A1 EP 4406096A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- magnets
- carrier
- holding part
- magnetic device
- holding
- 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.)
- Withdrawn
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
- H02K1/22—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
- H02K1/2798—Rotors axially facing stators the rotor consisting of two or more circumferentially positioned magnets where both axial sides of the stator face a rotor
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/03—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/02—Machines with one stator and two or more rotors
-
- 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
- H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
Definitions
- the present disclosure relates to a magnet device for an electric machine and to a method for manufacturing a magnet device.
- the aim is to continuously improve the target parameters of energy efficiency, power-to-weight ratio, reliability and service life.
- a low weight of the drives is also important for low energy consumption in mobile applications (e.g. in vehicle construction). The requirements described apply in particular to use in aircraft.
- Electrical machines regularly include a stator and a rotor that can rotate relative thereto.
- permanent magnets are attached to one of the two, eg the rotor.
- Wire windings are mounted on the other component, eg on the stator.
- these can be subjected to an alternating electric field in order to generate a magnetic field that causes the rotor to rotate.
- the magnets of such a permanent magnet machine can be lighter than coils for generating a comparable power, they still generally give the rotor a not inconsiderable weight.
- the object of the present invention is to enable improved electrical machines.
- a magnetic device for an electrical machine in particular an axial flux machine such as an axial flux motor
- the magnetic device comprises a carrier, e.g. in the form of a disk, which has a flat support surface and at least one positive-locking element.
- the magnet device comprises a plurality of magnets which are arranged around an axis along the support surface. The magnets can touch the support surface.
- a support section and/or adhesive can be arranged in between.
- the magnetic device comprises a holding part with at least one form-fitting element which is in form-fitting engagement with the at least one form-fitting element of the carrier.
- the holding part also has a holding section, by means of which at least one (or more) of the magnets is (are) held on the carrier, in particular in a form-fitting manner.
- an air gap is generally formed between the stator and the rotor in order to enable the rotor to rotate. Furthermore, there is a distance between the windings and/or their iron cores (eg of the stator) and the magnets (eg of the rotor) which can also be referred to as a magnetic gap.
- the magnetic gap is at least as large as the air gap, but in practice is usually larger than the air gap. For example, it is known to the applicant from internal practice to arrange the magnets in a casing and to fasten them to a carrier of the rotor by means of this casing. Thus, the magnetic gap is larger than the air gap by at least the thickness of the shell. The configuration described makes it possible to dispense with such a cover.
- the magnets can have a chamfer.
- the holding section of the holding part rests against the bevel of the at least one magnet, in particular flat. This enables secure mounting and easy assembly at the same time.
- the magnets and the holding part can have surfaces that all lie in one plane. Such a configuration can be made possible in particular by the chamfer.
- the air gap can be kept particularly small due to the common surface.
- the holding part can be ring-shaped. For example, it extends around the axis. This enables a particularly robust design.
- the holding part is made of metal, for example.
- the magnet device also includes, for example, a holder with a holding section, by means of which the at least one (or the several) of the magnets is (are) held on the carrier, in particular on a side of the at least one (or of each of the several) that faces away from the holding section of the holding part. the magnet.
- a holder with a holding section by means of which the at least one (or the several) of the magnets is (are) held on the carrier, in particular on a side of the at least one (or of each of the several) that faces away from the holding section of the holding part. the magnet.
- This allows a particularly simple installation.
- the magnets are first pushed under the holding section of the holder and then fixed with the holding part.
- the holding section of the holding part and/or the holding section of the holder can each form an angled interface for the magnets 11 .
- the holding section of the holding part and/or the holding section of the holder tapers to a point.
- the bracket can be fixed to the carrier
- the holder is formed on the carrier, in particular connected in one piece to the carrier. This makes it possible to achieve a small number of parts. Furthermore, a particularly robust configuration is possible in this way.
- the holder is formed on a support body, which represents a component that is separate from the carrier and can be (or is) mounted on the carrier.
- the support body has, for example, a support section which is arranged between the at least one (or more) of the magnets and the carrier.
- the magnets lie flat against the support section, for example.
- the magnets can first be mounted on the support body and then mounted on the carrier as a prefabricated structural unit. This enables a particularly simple assembly of the magnets and high precision in production.
- the magnets are optionally arranged in a row (e.g. in a ring).
- the magnets are designed in the form of a segmented magnetic ring.
- the magnets can be arranged, for example, in two or more rows (in particular each in a ring shape), between which the holder can be arranged. A particularly powerful electrical machine is possible as a result.
- the magnetic device can also comprise a further holding part.
- the further holding part has, for example, at least one form-fitting element which is in form-fitting engagement with at least one further form-fitting element of the carrier and/or a holding section, by means of which the at least one (or more) of the magnets is (are) held on the carrier.
- At least one (or more) of the magnets can be arranged between the holding part and the further holding part. For example, two rows of magnets are provided, one row between the holding part and the holder and another row between the holder and the further holding part.
- the bracket can be arranged between the two rows.
- the form-fitting element of the carrier and the form-fitting element of the holding part can together form a bayonet catch. This allows particularly quick and safe installation.
- the holding part can, for example, first be plugged axially onto the carrier and then rotated about the axis on the carrier for locking with the carrier.
- the further form-fitting element of the carrier and the form-fitting element of the further holding part can also jointly form a bayonet catch.
- the magnets can each have an outer surface facing away from the carrier, with the outer surfaces of the magnets lying in the same plane (extending in two spatial directions). For example, this plane is aligned perpendicularly to the above-mentioned axis.
- the holding portion of the holding part and / or the holding portion of the Holder adjoin, for example, to these outer surfaces.
- the magnets are e.g. permanent magnets. This allows it to be used in a permanently excited electrical machine.
- a rotor for an electrical machine is specified.
- the rotor includes the magnet device according to any configuration described herein.
- an electrical machine e.g. a motor, in particular an axial flux machine, such as an axial flux motor.
- the electric machine includes a stator and the rotor described above or a rotor, a stator and the magnetic device according to any configuration described herein. With regard to the advantages, reference is made to the above information on the magnetic device.
- the magnetic device can in particular form part of the rotor.
- a method for manufacturing a magnetic device comprises providing a carrier with a flat support surface and at least one form-fitting element and arranging a plurality of magnets along the support surface around an axis and positively connecting at least one form-fitting element of a holding part to the at least one form-fitting element of the carrier, with at least one or some of the Magnets is held by a holding portion of the holding part on the carrier / are.
- the method may further comprise assembling a cassette by arranging the magnets and the holding part, and optionally another holding part, on a support body prior to arranging the magnets along the support surface.
- the magnets are then secured by mounting the support body to the support surface of the carrier arranged along the support surface around the axis.
- FIG. 1 shows a schematic representation of an electrical machine with a stator and two rotors
- FIGS. 2A-2D show steps in the manufacture of a magnet device for the electrical machine according to FIG. 1 with a carrier, a plurality of magnets and two holding parts for the magnets;
- FIGS. 3A-3D show steps in the manufacture of a cartridge for a magnet device for the electrical machine according to FIG. 1, with a support body, a plurality of magnets and two holding parts for the magnets;
- FIGS. 4A and 4B show steps in the manufacture of a magnetic device for the electrical machine according to FIG. 1 with a carrier and the cassette according to FIG. 3D;
- FIG. 5 shows an optional stop for one of the holding parts
- FIG. 6 shows a detailed view of a cross section of the magnet device according to FIG. 4B.
- FIG. 1 shows an electrical machine 2 in the form of an axial flux motor (or transverse flux motor).
- the electric machine 2 comprises a stator 21 and generally at least one rotor 20 rotatable about an axis A relative to the stator 21.
- the electric machine comprises two rotors 20, one of which, however, is optional.
- Each of the rotors 20 can be rotated relative to the stator 21, in the present case about the same axis A.
- the rotors 20 can represent partial rotors of a rotor.
- the electrical machine 2 can include a plurality of stators 21 and associated rotors 20, each of which is designed, for example, according to FIG for example, are aligned coaxially to the A axis.
- the rotors 20 each comprise a magnet device 1 with a plurality of magnets 11, here in the form of permanent magnets. Furthermore, the respective magnet device 1 comprises a carrier 10 to which the magnets 11 are attached in a manner explained in more detail below. Each of the rotors 20 can comprise further components, as indicated in FIG. 1 for one of the rotors 20.
- each of the rotors 20 is disk-shaped. Each of the rotors 20 is arranged along the axis A next to the stator 21 .
- FIG. 1 shows the electric machine 2 in an exploded view, but even in the assembled state there is a distance between the stator 21 and each of the rotors 20 in the axial direction (along the axis A). Due to this distance, there is an air gap between the stator 21 and the respective rotor 20 in the axial direction. The electrical machine 2 therefore has an axial air gap between the stator 21 and the (respective) rotor 20 .
- the carrier 10 of each of the rotors 20 forms a support surface which is oriented perpendicularly to the A axis.
- the magnets 11 of the respective rotor 20 are arranged around the axis A along this support surface. In the present case, the magnets 11 are arranged concentrically to the A axis.
- the stator 21 is arranged between the two rotors 20 .
- the stator 21 includes a stator core 210 and a stator winding 211 .
- the magnets 11 and the stator winding 211 extend at the same radial distance from the axis A.
- the stator winding 211 can be supplied with an electric current, for example an alternating current, in particular a three-phase alternating current.
- an electric current for example an alternating current, in particular a three-phase alternating current.
- a rotating magnetic field is generated, through which a force is exerted on the magnets 11 , which causes the respective rotor 20 to rotate about the axis A relative to the stator 21 .
- the magnetic fields act in the axial direction.
- Figures 2A to 2D illustrate a method for producing the
- Magnetic device 1 (of one rotor 20 and, analogously, of the other rotor 20 the electrical machine 1 according to FIG. 1).
- the carrier 10, the magnets 11 and two holding parts 12, 15 are provided.
- the carrier 10 forms two annular planar support surfaces 100, one for each annular row of magnets 11.
- the support surfaces 100 extend in the same plane and a smaller one of the support surfaces 100 is surrounded by a larger one of the support surfaces 100 on the outside.
- the carrier 10 also forms a number of form-fitting elements 101 , 102 .
- each of the form-fitting elements 101, 102 has a projection.
- the form-fit elements 101, 102 are designed and arranged to enter into a form-fit.
- the form-fitting elements 101, 102 have an L-shaped cross section here.
- the form-fitting elements 101, 102 each form a receptacle.
- the form-fitting elements 101 , 102 are each formed on the edge of one of the support surfaces 100 .
- the receptacles of the form-fitting elements 101 , 102 are open towards the respective adjoining support surface 100 .
- a gap is formed between at least two positive-locking elements 101, 102 arranged offset from one another in the circumferential direction about the axis A (and at the same radial distance from the axis A).
- form-fitting elements 101 are formed on the outer edge of the outer support surface 100 and further form-fitting elements 102 are formed on the inner edge of the inner support surface 100 .
- the carrier 10 also has a holder 13 .
- the holder 13 is connected to the rest of the carrier 10 in one piece.
- the bracket is annular and extends around axis A.
- the holder 13 is arranged between the two support surfaces 100 .
- the holder 13 has two holding sections 130, one radially inner and one radially outer. In the cross section it can be seen that the holding sections 130 protrude from a free end of the holder 13, in the present case in a direction perpendicular to the axis A.
- the holding sections 130 each have a bevel.
- the magnets 11 each have a bevel 110 on two opposite sides.
- An outer surface 111 extends between the two bevels 110.
- the holding parts 12, 15 are each ring-shaped (in the present case each as a closed ring).
- a radially outer holding part 12 has positive-locking elements 120 which protrude radially outwards from the holding part 12 in the example shown.
- the positive-locking elements 120 are designed in the form of tabs.
- the holding part 12 has a holding section 121 which protrudes radially inwards.
- the holding portion 121 has a slope.
- a radially inner holding part 15 has form-fitting elements 150 which protrude radially inwards from the holding part 15 in the example shown.
- the positive-locking elements 150 are designed in the form of tabs.
- the holding part 15 has a holding section 151 which protrudes radially outwards.
- the holding portion 151 has a slope.
- the magnets 11 are arranged on the support surfaces 100.
- FIG. For this purpose, they are brought into engagement with the respective holding section 130 of the holder 13 .
- the holding section 130 then overlaps the respective magnets 11.
- the bevel of the respective holding section 130 lies in planar contact with the chamfer 110 of the respective magnets 11.
- an adhesive is applied to the support surfaces 100 and/or to the magnets 11, which adhesively holds the magnets 11 in place after they have been mounted on the carrier 10.
- the magnets 11 glued to the carrier 10 and positively engaging with the holder 13 are shown in FIG. 2B.
- Figure 2C illustrates the assembly of the outer holding part 12. This is placed on the carrier 10 (in particular pushed onto it along the axis A), with the form-fitting elements 120 of the holding part 12 each engaging in a gap between two form-fitting elements 101 of the carrier 10. The holding part 12 is then rotated about the axis A, so that the form-fitting elements 120 of the holding part 12 engage in the receptacles of the form-fitting elements 101 of the carrier 10 . As a result, the holding part 12 is held on the carrier 10 in a form-fitting manner. The holding part 12 and the carrier 10 thus form a bayonet catch.
- FIG. 2D illustrates the assembly of the inner holding part 15, which is carried out analogously to the assembly of the outer holding part: The inner holding part 15 is also placed on the carrier 10, with the form-fitting elements 150 of the holding part 15 each engaging in a gap between two form-fitting elements 102 of the carrier 10 .
- the holding part 15 is then rotated about the axis A, so that the form-fitting elements 150 of the holding part 15 engage in the receptacles of the form-fitting elements 102 of the carrier 10 .
- the holding part 15 is held on the carrier 10 in a form-fitting manner.
- the holding part 15 and the carrier 10 also form a bayonet catch.
- the holding section 151 of the holding part 15 is in planar contact with the bevel 110 of the magnets 11 facing the holding part 15 .
- the magnets 11 of the inner row are held in a form-fitting manner on the carrier 10 between the holding part 15 and the holder 13 .
- FIG. 2D shows the fully assembled magnet device 1. Since no covers or the like are necessary for the magnets 11, it is possible to design the structural air gap of the electrical machine 2 to be particularly narrow. The mechanical gap and the magnetic gap can be the same. As a result, the magnet weight can be reduced and/or the performance of the electric machine can be improved. Furthermore, improved heat dissipation is possible.
- the carrier 10 consists of at least one metal or comprises at least one metal.
- the carrier is made of steel.
- the holding parts 12, 15 also consist of at least one metal or comprise at least one metal.
- the holding parts 12, 15 are made of steel.
- Particularly robust components can be produced from metals, which in particular also have a long service life and easily predictable aging.
- the magnetic device 1 (or even the rotor 20) is free of composite materials, the aging of which is often difficult to predict.
- the magnetic device 1 could also have just one of the rings of magnets 11 and one of the holding parts 12, 15 instead of two rings of magnets 11 and two holding parts 12,15.
- the magnets 11 are in direct contact with the carrier 10.
- FIG. The magnets 11 touch the carrier 10 and/or are glued thereto by means of the adhesive.
- at least one stop can be provided on the carrier 10, against which at least one magnet 11 strikes in the circumferential direction.
- the magnets 11 are secured against movement relative to the carrier 10 in all directions.
- the magnets 11 can introduce a torque about the axis A into the rest of the rotor 20 .
- a magnetic device T can be produced as illustrated with reference to FIGS. 3A to 4B.
- the holder 13 is not formed on the carrier 10, but on a support body 14 that can be mounted thereon. This allows particularly precise production.
- no bracket 13 is necessary, or the bracket 13 is provided on the carrier.
- the support body 14 has a support section 140 for each segmented ring of magnets 11 .
- Each support portion 140 is annular.
- the support sections 140 each form a contact surface for the magnets 11 .
- the contact surface of each support section 140 is flat.
- the bracket 13 is arranged between the two support sections 140 .
- the magnets 11 are arranged on the support sections 140 and brought into engagement with the respective holding section 130 of the holder 13 .
- the magnets 11 are bonded to the support sections 140 (optional) using adhesive.
- the two holding parts 12, 15 are then arranged on either side of the magnets 11. It can be provided here that the holding parts 12 , 15 are dimensioned in such a way that they are pressed onto the magnets 11 and/or onto the support body 14 in a force-fitting manner.
- the magnets 11 and the supporting body 14 are then arranged between the holding parts, see FIG. 3D, so that a cassette K is formed.
- the magnets 11 are held in a form-fitting manner between the holder 13 and the respective holding part 12, 15, corresponding to the magnet device 1 according to FIGS. 2A to 2D.
- the cassette K is then mounted on the carrier 10 'by the cassette K is placed on the support surface 100 of the carrier 100 that the form-fitting elements 120, 150 of the holding parts 12, 15 in gaps between the Form-fit elements 101, 102 of the carrier 10 'are introduced.
- the cassette K is then rotated about the axis A relative to the carrier 10', so that the positive-locking elements 120, 150, 101, 102 engage and positively hold the cassette K together with the magnet 11 on the carrier 10'.
- the holding section 121 of the holding part 12 overlaps the adjoining magnet 11, more precisely: it is in contact with the chamfer 110 thereof.
- the supporting body 14 is arranged between the carrier 10 ′ and the magnet 11 .
- An optional stop 152 protrudes from one or more of the form-fitting elements 101, 102, 120, 150, e.g. in the radial direction as shown. In a position of the holding part 15 held in a form-fitting manner against a movement in the direction of the axis A away from the carrier 10', this stop 152 strikes laterally on the respective form-fitting element 102 of the carrier 10' and thus prevents further rotation.
- the bayonet lock locks in one direction of rotation or the other. In general, the locking direction can depend on the preferred direction (eg the main direction of rotation) of the electric machine 2, for example it can be aligned in the opposite direction thereto.
- Figure 5 shows an example of a stop 103 on a form-fitting element 101 of the carrier 10 'for a corresponding form-fitting element of the holding part 12.
- This stop 103 closes the recording of the form-fitting element 102 of the carrier 10' laterally.
- a non-positive fixation of the holding parts 12, 15 in the mounted position can be secured against rotation relative to the carrier 10'.
- the holding parts 12, 15 can be fixed to the carrier 10' in some other way for this purpose, for example screwed thereto.
- FIG. 7 shows an aircraft 3 in the form of an air taxi.
- the aircraft 3 comprises a cabin and several electric machines 2 according to FIG. 1 as an electric motor.
- Each of the electrical machines 2 drives two propellers 30 .
- each of the propellers is operatively connected to (e.g. attached to) one of the rotors 20 of the electric machine 2 .
- a battery 31 supplies electrical power to operate the electrical machines 2.
- the electrical machines 2 are direct drives.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021210640.4A DE102021210640A1 (de) | 2021-09-23 | 2021-09-23 | Magnetvorrichtung für eine elektrische Maschine |
| PCT/EP2022/076055 WO2023046663A1 (de) | 2021-09-23 | 2022-09-20 | Magnetvorrichtung für eine elektrische maschine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4406096A1 true EP4406096A1 (de) | 2024-07-31 |
Family
ID=83508564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22782879.5A Withdrawn EP4406096A1 (de) | 2021-09-23 | 2022-09-20 | Magnetvorrichtung für eine elektrische maschine |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20250007340A1 (de) |
| EP (1) | EP4406096A1 (de) |
| DE (1) | DE102021210640A1 (de) |
| WO (1) | WO2023046663A1 (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117424369A (zh) * | 2023-04-17 | 2024-01-19 | 宁德时代(上海)智能科技有限公司 | 电机转子、电机、动力总成及电动设备 |
| DE102023128587A1 (de) * | 2023-10-18 | 2025-04-24 | Rolls-Royce Deutschland Ltd & Co Kg | Baugruppe für eine Maschine |
| DE102024113274A1 (de) * | 2024-05-13 | 2025-11-13 | Rolls-Royce Deutschland Ltd & Co Kg | Elektrische Maschine mit asymmetrisch angeordneten Polpaaren |
| DE102024128688A1 (de) | 2024-10-04 | 2026-04-09 | Bayerische Motoren Werke Aktiengesellschaft | Werkzeug zur Verklebung eines Rotors für einen Fahrzeugantrieb |
| DE102024129093A1 (de) * | 2024-10-09 | 2026-04-09 | Bayerische Motoren Werke Aktiengesellschaft | Rotor für eine Axialflussmaschine, Axialflussmaschine mit einem Rotor sowie Kraftfahrzeug mit einer Axialflussmaschine |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007151321A (ja) | 2005-11-29 | 2007-06-14 | Nissan Motor Co Ltd | 回転電機のロータ |
| DE102007056366A1 (de) * | 2006-12-01 | 2008-06-05 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Bürstenlose elektrische Maschine |
| US8598761B2 (en) * | 2007-05-03 | 2013-12-03 | In Motion Technologies Pty., Ltd. | Rotor magnet positioning device |
| US9154024B2 (en) | 2010-06-02 | 2015-10-06 | Boulder Wind Power, Inc. | Systems and methods for improved direct drive generators |
| EP2555383B1 (de) * | 2011-08-01 | 2019-09-25 | Siemens Gamesa Renewable Energy A/S | Dauermagnetanordnung mit verschiebarer Befestigung und Verfahren zur Befestigung eines Dauermagneten auf einer Grundplatte |
| US8716913B2 (en) | 2012-08-07 | 2014-05-06 | Boulder Wind Power, Inc. | Devices and methods for magnetic pole and back iron retention in electromagnetic machines |
| DE102013101956A1 (de) * | 2013-02-27 | 2014-08-28 | Wittenstein Ag | Rotor |
| JP6539539B2 (ja) * | 2015-08-18 | 2019-07-03 | 株式会社神戸製鋼所 | アキシャルギャップ型回転電機 |
| FR3048827B1 (fr) | 2016-03-14 | 2023-06-02 | Whylot | Rotor pour moteur ou generatrice electromagnetique a flux axial a aimants semi-enterres avec des moyens de maintien axial |
| CN208445371U (zh) | 2018-06-15 | 2019-01-29 | 核心驱动科技(金华)有限公司 | 电机及其转子盘 |
| CN209001700U (zh) | 2018-11-23 | 2019-06-18 | 擎声自动化科技(上海)有限公司 | 转子磁钢与转盘的固定结构 |
| IT201900015402A1 (it) | 2019-09-02 | 2021-03-02 | Texa Dynamics S R L | “Rotore di motore elettrico” |
| CN111884368B (zh) | 2019-11-22 | 2021-05-18 | 山东精创磁电产业技术研究院有限公司 | 轴向磁场电机 |
| CN111514393B (zh) * | 2020-04-30 | 2024-11-05 | 李欣阳 | 一种带有轴流和离心结构的人工心脏血泵 |
| CN111682666B (zh) * | 2020-05-21 | 2022-04-15 | 杭州中豪电动科技有限公司 | 一种应用于盘式电机的单转子盘 |
-
2021
- 2021-09-23 DE DE102021210640.4A patent/DE102021210640A1/de active Pending
-
2022
- 2022-09-20 WO PCT/EP2022/076055 patent/WO2023046663A1/de not_active Ceased
- 2022-09-20 EP EP22782879.5A patent/EP4406096A1/de not_active Withdrawn
- 2022-09-20 US US18/694,942 patent/US20250007340A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE102021210640A1 (de) | 2023-03-23 |
| WO2023046663A1 (de) | 2023-03-30 |
| US20250007340A1 (en) | 2025-01-02 |
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