WO2024255967A1 - Statoranordnung für eine elektrische axialflussmaschine - Google Patents
Statoranordnung für eine elektrische axialflussmaschine Download PDFInfo
- Publication number
- WO2024255967A1 WO2024255967A1 PCT/DE2024/100525 DE2024100525W WO2024255967A1 WO 2024255967 A1 WO2024255967 A1 WO 2024255967A1 DE 2024100525 W DE2024100525 W DE 2024100525W WO 2024255967 A1 WO2024255967 A1 WO 2024255967A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- stator
- welding clamp
- welding
- yoke
- stator yoke
- 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
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
- H02K1/182—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to stators axially facing the rotor, i.e. with axial or conical air gap
Definitions
- the present invention relates to a stator arrangement for an electrical axial flux machine comprising a stator and a stator receptacle connected to the stator, wherein the stator has a disk-shaped stator yoke from which a plurality of stator teeth extend axially.
- Electric motors are increasingly being used to power motor vehicles in order to create alternatives to combustion engines that require fossil fuels.
- Considerable efforts have already been made to improve the everyday suitability of electric drives and to offer users the driving comfort they are used to.
- An axial flux machine is a dynamoelectric machine in which the magnetic flux between the rotor and stator runs parallel to the axis of rotation of the rotor. Often both the stator and the rotor are largely disk-shaped. Axial flux machines are particularly advantageous when the axially available installation space in a given application is is limited. This is often the case, for example, with the electric drive systems for electric vehicles described at the beginning. In addition to the shortened axial length, another advantage of the axial flux machine is its comparatively high torque density. The reason for this is the larger air gap area that is available in a given installation space compared to radial flux machines. Furthermore, a smaller iron volume is required compared to conventional machines, which has a positive effect on the efficiency of the machine.
- a stator arrangement for an electrical axial flux machine comprising a stator and a stator receptacle connected to the stator, wherein the stator has a disk-shaped stator yoke from which a plurality of stator teeth extend axially, wherein on the side of the stator yoke facing the stator receptacle, at least one receiving groove is formed in the stator yoke, in which a rod-shaped welding clamp is fixed, which in turn is connected to the stator receptacle.
- the receiving groove in the stator yoke, in which the rod-shaped welding clamp is fixed, makes it easier to assemble the stator, as the welding clamp can be connected to the stator yoke simply by pushing it into the receiving groove.
- the connection between the welding clamp and the stator holder allows the stator to be securely fixed and a reliable mechanical connection to be established. Furthermore, this enables a range of different fastening variants to be implemented, which can, for example, be adapted to different application scenarios of the axial flow machine.
- the rod-shaped welding clamp, which is connected to the stator holder, can also help to dampen vibrations and noise, which can contribute to quieter operation of the axial flow machine.
- the welding clamp can be connected to the stator holder by means of a material connection.
- the welding clamp can be connected to the Stator holder can be welded. Welding the welding clamp to the stator holder provides a firm and strong connection between the two components. This provides improved stability and rigidity of the stator assembly, which can help minimize unwanted vibrations and movements during operation.
- the direct connection between the welding clamp and the stator holder also allows heat to be efficiently dissipated from the stator winding to the stator holder. Furthermore, welding can eliminate the need for additional fasteners such as screws or clamps, which can make stator assembly easier.
- an axial flow machine in an I-arrangement or an H-arrangement.
- the rotor is arranged axially next to a stator or between two stators.
- two rotors are arranged on opposite axial sides of a stator.
- the axial flow machine according to the invention is preferably configured in an I-arrangement.
- the axial flux machine consists of exactly one stator and exactly one rotor.
- rotor-stator configurations as I-type and/or H-type to be arranged axially next to one another.
- the rotor-stator configurations of the H-type and/or the I-type it is also preferable for the rotor-stator configurations of the H-type and/or the I-type to be essentially identical so that they can be combined in a modular manner to form an overall configuration.
- Such rotor-stator configurations can in particular be arranged coaxially to one another and connected to a common rotor shaft or to several rotor shafts.
- the stator of the electric axial flow machine preferably has a stator body with several circumferentially arranged Stator windings.
- the stator body can be designed as a single piece or as segments in the circumferential direction.
- the stator body can be formed from a stator lamination package with several laminated electrical steel layers.
- stator body can also be made of a pressed soft magnetic material, such as the so-called SMC material (Soft Magnetic Compound).
- SMC material Soft Magnetic Compound
- the rotor of an electric axial flux machine can be designed at least in part as a laminated rotor.
- a laminated rotor is designed to be layered in the radial direction.
- the rotor of an axial flux machine can alternatively also have a rotor carrier which is designed accordingly with magnetic sheets and/or SMC material and with magnetic elements designed as permanent magnets.
- the rotor does not have any other magnetically conductive materials in addition to the permanent magnets.
- the permanent magnets can also be accommodated in a rotor made entirely or partially from a plastic.
- a rotor shaft is a rotatably mounted shaft of an electrical machine to which the rotor or rotor body is rotationally fixedly coupled.
- the electric axial flow machine can also have a control device.
- a control device as can be used in the present invention serves in particular for the electronic control and/or regulation of one or more technical systems of the electric axial flow machine.
- a control device has in particular a wired or wireless signal input for receiving in particular electrical signals, such as sensor signals. Furthermore, a control device also preferably has a wired or wireless signal output for transmitting in particular electrical signals.
- Control operations and/or regulation operations can be carried out within the control device. It is particularly preferred that the control device comprises hardware which is designed to implement software Preferably, the control device comprises at least one electronic processor for executing program sequences defined in software.
- the control device can also have one or more electronic memories in which the data contained in the signals transmitted to the control device can be stored and read out again.
- the control device can also have one or more electronic memories in which data can be stored in a changeable and/or unchangeable manner.
- a control device can comprise a plurality of control units, which are arranged in particular spatially separated from one another in the motor vehicle.
- Control units are also referred to as electronic control units (ECUs) or electronic control modules (ECMs) and preferably have electronic microcontrollers for carrying out computing operations for processing data, particularly preferably using software.
- the control units can preferably be networked with one another, so that a wired and/or wireless data exchange between control units is possible.
- bus systems present in the motor vehicle such as CAN bus or LIN bus.
- control device has at least one processor and at least one memory, which in particular contains a computer program code, wherein the memory and the computer program code are configured, with the processor, to cause the control device to execute the computer program code.
- the control unit can particularly preferably comprise power electronics for supplying current to the stator or rotor.
- Power electronics is preferably a combination of various components which control or regulate a current to the electrical machine, preferably including the peripheral components required for this purpose, such as cooling elements or power supplies.
- the power electronics contains one or more power electronic components which are designed to control or regulate a current. These are particularly preferably one or more power switches, e.g. power transistors.
- the power electronics have more than two, particularly preferably three separate phases or current paths, each with at least one separate power electronics component.
- the power electronics are preferably designed to control or regulate a power with a peak power, preferably continuous power, of at least 1,000 W, preferably at least 10,000 W, particularly preferably at least 100,000 W per phase.
- the electric axial flow machine is particularly intended for use within a drive train of a hybrid or fully electric motor vehicle.
- the electric machine is dimensioned such that vehicle speeds of greater than 50 km/h, preferably greater than 80 km/h and in particular greater than 100 km/h can be achieved.
- the electric motor particularly preferably has an output of greater than 50 kW, preferably greater than 100 kW and in particular greater than 250 kW. It is further preferred that the electric machine provides operating speeds of greater than 5,000 rpm, particularly preferably greater than 10,000 rpm, very particularly preferably greater than 12,500 rpm.
- the electric machine most preferably has operating speeds of between 5,000-15,000 rpm, extremely preferably between 7,500-13,000 rpm.
- the electric axial flux machine can preferably also be installed in an electrically operated axle drive train.
- An electric axle drive train of a motor vehicle comprises an electric axial flux machine and a transmission, wherein the electric axial flux machine and the transmission form a structural unit.
- the electric axial flux machine and the transmission are arranged in a common drive train housing.
- the electric axial flux machine it would of course also be possible for the electric axial flux machine to have a motor housing and the transmission to have a transmission housing, wherein the structural unit can then be effected by fixing the transmission relative to the electric axial flux machine.
- This structural unit is sometimes also referred to as an E-axle.
- the electric axial flux machine can particularly preferably also be provided for use in a hybrid module.
- a hybrid module structural and functional elements of a hybridized drive train can be spatially and/or structurally combined and preconfigured so that a hybrid module can be integrated into a drive train of a motor vehicle in a particularly simple manner.
- an axial flux machine and a clutch system can be present.
- a plurality of receiving grooves are arranged on the stator yoke.
- the load can be evenly distributed, which can help to minimize stresses and deformations in the stator arrangement and ensure more uniform mechanical stability.
- the plurality of receiving grooves also enables flexible positioning of the welding clamps along the stator yoke and allows optimal adaptation to different requirements and geometries of the axial flow machine. It is also conceivable to use more or fewer welding clamps depending on the specific operating conditions of the axial flow machine in order to ensure optimal stability and strength.
- the receiving grooves are aligned radially on the stator yoke.
- the radial alignment of the receiving grooves allows the magnetic flux in the stator yoke to be guided particularly efficiently.
- radially arranged receiving grooves reduce undesirable magnetic losses, such as eddy current losses and hysteresis losses in the stator yoke.
- a radial alignment of the receiving grooves can also support a more even distribution of the magnetic flux in the stator yoke.
- the number of receiving slots corresponds to the number of stator teeth. If the number of receiving slots corresponds to the number of stator teeth, each welding clamp can be precisely positioned and fixed to a stator tooth, allowing precise placement of the welding clamps and promoting a particularly even distribution of forces and stresses in the stator assembly, helping to reduce unwanted vibrations, deformations and stresses. Furthermore, such a symmetrical design can also contribute to a balanced magnetic alignment and a uniform magnetic flux in the stator yoke.
- the receiving grooves are arranged equidistantly distributed over the circumference of the stator yoke. This can achieve the effect in particular that the load is distributed particularly evenly between the welding clamps and the stator due to the equidistant distribution of the receiving grooves over the circumference of the stator yoke.
- the invention can also be further developed in such a way that the at least one receiving groove, preferably a plurality of receiving grooves, particularly preferably all receiving grooves, has/have a cross-sectional contour which forms an axial stop with a corresponding cross-sectional contour of the welding clamps, so that the welding clamps are arranged in an axially secured manner in the receiving grooves.
- This enables the welding clamps to be securely fastened in the receiving grooves and prevents axial slipping or loosening during operation.
- the cross-sectional contour of the receiving grooves and the welding clamps also facilitates the assembly of the stator arrangement, since the axial stop enables precise placement and fixation of the welding clamps.
- the welding clamp inserted in a receiving groove protrudes radially from an outer surface of the stator yoke and is radially secured by means of a caulking on the outer surface and/or the welding clamp inserted in a receiving groove protrudes radially from an inner surface of the stator yoke and is radially secured by means of a caulking on the inner surface.
- the welding clamp it is also possible for the welding clamp to be fixed in the receiving groove in a material-locking manner, in particular by welding.
- a material-locking connection is created that ensures high stability and strength. This enables reliable transmission of forces and loads between the welding clamp and the stator yoke.
- the welding clamp can be fixed in the receiving groove by means of at least one continuous weld seam.
- the welding clamp is preferably fixed in the receiving groove by means of two continuous weld seams. This allows a particularly robust, material-locking connection to be formed between a welding clamp and a receiving groove.
- the welding clamp can also be fixed in the receiving groove by means of at least one interrupted weld seam. It can also be preferred that the welding clamp is fixed in the receiving groove by means of at least two interrupted weld seams. This can reduce the effort required for welding and consequently the manufacturing costs.
- the welding clamp can also be fixed in the receiving groove by means of welding points, which can also help to increase the welding process speed and reduce production costs.
- stator holder and the stator yoke are at least partially, preferably completely, axially spaced from each other to form a cooling channel.
- the axial distance between the stator holder and the stator yoke creates a cooling channel that enables improved heat dissipation. This distance enables the unhindered flow of cooling medium, such as air or liquid, in order to dissipate the heat generated during operation. This contributes to better heat dissipation and thus to the prevention of overheating and an improved operating temperature of the axial flow machine.
- the welding clamp can protrude axially from the stator yoke and the stator holder can abut axially against the welding clamp protruding from the stator yoke.
- the stator holder can have contact sections protruding axially from it, which abut axially against the stator yoke.
- a separate spacer element to be arranged between the stator holder and the stator yoke.
- insulation is arranged at least on the contact surfaces between the welding clamp and the receiving groove.
- the insulation can be connected, for example, to the welding clamp and/or to the receiving groove.
- the insulation is particularly preferably designed as a coating.
- the insulation can have a thermally insulating, electrically insulating and/or magnetically insulating effect.
- the invention can also be advantageously designed such that the stator holder is connected to the welding clamp by means of a continuous weld seam running along the welding clamp or the stator holder is connected to the welding clamp by means of a weld seam running interrupted along the welding clamp.
- This makes it possible to create a particularly effective and robust material connection between the welding clamp and the stator holder.
- the stator holder is connected to the welding clamp by means of welding points running along the welding clamp.
- the welding clamp protrudes radially from the outer surface of the stator yoke and at its protrusion from the stator yoke protruding first clamp section has a first positive locking means, via which the welding clamp is connected to the stator holder, and/or the welding clamp protrudes radially from the inner surface of the stator yoke and has a second positive locking means on its second clamp section protruding from the stator yoke, via which the welding clamp is connected to the stator holder.
- the use of positive locking means can facilitate easy assembly and disassembly of the stator from the stator holder.
- the welding clamp can also have a third form-locking means formed in the area of the receiving groove, via which the welding clamp is connected to the stator holder, which can be advantageous in particular in radially limited installation space situations.
- the first form-locking means and/or the second form-locking means and/or the third form-locking means is an opening in the welding clamp, which is particularly easy to produce in terms of manufacturing technology.
- the first form-locking means and/or the second form-locking means and/or the third form-locking means can preferably also comprise an internal thread, via which the stator holder is screwed to the welding clamp. It is also conceivable that the opening is penetrated by a screw, the thread of which protrudes axially from the opening in the direction of the stator holder and the screw head of which rests axially on the welding clamp, and wherein the stator holder is secured to the screw by means of a nut.
- Figure 1 shows an axial flow machine in I-design in a schematic axial section
- Figure 2 shows a stator arrangement of an axial flow machine in an exploded view
- Figure 3 shows a stator arrangement of an axial flow machine in a perspective view
- FIG. 4 is a detailed view of a caulking of a welding clamp on the outer surface of the stator yoke
- Figure 5 shows a stator yoke with a welding clamp not yet inserted into a receiving groove in a perspective view
- FIG. 6 a stator yoke with a welding clamp inserted in a receiving groove in a perspective view
- Figure 7 shows a stator yoke with a plurality of welding clamps inserted in a receiving groove in a perspective view
- Figure 8 shows a welding clamp inserted in a receiving groove in an unwelded and a welded state with the stator holder in a tangential sectional view
- Figure 10 shows five different embodiments of welding clamps in different cross-sectional contours, each with a The cooling channel formed between the stator holder and the stator yoke in a tangential section view
- Figure 11 shows a welding clamp coated with insulation in a free-standing installation situation and one mounted in the receiving groove
- Figure 12 a receiving groove coated with insulation in a free-standing welding clamp and with a welding clamp received in the receiving groove
- FIG 13 five different embodiments of the stator arrangement with different weld seams for fixing the welding clamp in the respective receiving groove in a tangential section view
- Figure 14 various embodiments of weld seams and weld points for fixing the welding clamp in the respective receiving groove in a tangential section view
- Figure 15 shows a first embodiment of a welding clamp with sections projecting radially from the groove in a perspective view
- Figure 16 shows the first embodiment of a welding clamp with sections protruding radially from the groove with a rivet connection in an unassembled and an assembled state in an axial sectional view
- Figure 17 shows a second embodiment of a welding clamp with sections projecting radially from the groove in a perspective view
- Figure 18 various screw connections for fixing the stator to the stator holder in an axial sectional view
- Figure 19 shows a motor vehicle with an electric drive train in a schematic representation.
- Figure 1 shows an axial flow machine 2 in I-configuration with two axially spaced disc-shaped stators 3, between which the disc-shaped rotor 41 is rotatably mounted on the rotor shaft 42.
- the stators 3 are fixed to a stator holder 4, which is part of a motor housing of the axial flow machine 2.
- FIGS 2-3 show a stator arrangement 1 for the electric axial flow machine 2 comprising a stator 3 and a stator receptacle 4 connected to the stator 3, wherein the stator 3 has a disk-shaped stator yoke 5 from which a plurality of stator teeth 6 extend axially.
- a plurality of receiving grooves 8 are formed in the stator yoke 5, in each of which a rod-shaped welding clamp 9 is fixed, which in turn is connected to the stator receptacle 4.
- the receiving slots 8 are formed on the stator yoke 5, distributed radially and equidistantly over the circumference of the stator yoke 5.
- the number of receiving slots 8 corresponds to the number of stator teeth 6.
- the welding clamp 9 can be welded to the stator holder 4 and have a corresponding weld seam 22.
- the stator holder 4 can be connected to the welding clamp 9 by means of a continuous or interrupted weld seam 22 running along the welding clamp 9. It would also be possible to connect the stator holder 4 to the welding clamp 9 by means of welding points 23 running along the welding clamp 9.
- Figure 9 shows various cross-sectional shapes of the welding clamps 9 and the corresponding receiving grooves 8. What all the examples shown have in common is that the receiving groove 8 has a cross-sectional contour 10 which, with a corresponding cross-sectional contour 11 of the welding clamps 9, forms an axial stop 12 so that the welding clamps 9 are arranged in an axially secured manner in the receiving grooves 8.
- the welding clamp has a trapezoidal cross-sectional profile 11 and the receiving groove 8 has a dovetail-like cross-sectional contour 10.
- the cross-sectional profiles 10,11 have a T-shaped contour. Cuboid-shaped cross-sectional profiles 10,11 can be seen in figure c. Circular cross-sectional profiles 10,11 are also conceivable, as sketched in figure d.
- the cross-sectional contour 11 of the welding clamps 9 can also be T-shaped, with a welding projection 36 extending from the foot of the T-shaped contour.
- FIG 10 shows various embodiments of a stator arrangement 1 in which the stator holder 4 and the stator yoke 5 are at least partially axially spaced apart from one another to form a cooling channel 15.
- the welding clamp 9 protrudes axially from the stator yoke 5, with the stator holder 4 then axially resting on the welding clamp 9 protruding from the stator yoke 5.
- the stator holder 4 has contact sections 16 protruding axially from it, which axially rest on the stator yoke 5.
- Cooling channel 15 can be traversed by a cooling fluid, such as air or cooling oil.
- FIG 13 shows a number of further embodiments of the stator arrangement 1, in which the welding clamp 9 is fixed in the receiving groove 8 in a material-locking manner, in particular by means of welding.
- the stator holder 4 can have an embossed portion 37, which serves to discharge welding fumes.
- the welding clamp 9 can be fixed in the receiving groove 8 by means of two parallel, continuous weld seams 20 ( Figure a).
- the welding clamp 9 can also be fixed in the receiving groove 8 by means of two parallel, interrupted weld seams 20, whereby the interrupted weld seams 20 can also be arranged offset from one another, as can be seen in Figure c of Figure 14. It is also possible for the welding clamp 9 to be fixed in the receiving groove 8 by means of welding points 21, which is shown in Figure d.
- FIGS 15-17 show further embodiments of a stator arrangement 1 in which the welding clamp 9 protrudes radially from the outer surface 13 of the stator yoke 5 and has a first positive locking means 25 on its first clamp section 24 protruding from the stator yoke 5, via which the welding clamp 9 is connected to the stator receptacle 4.
- the welding clamp 9 also protrudes radially from the inner surface 14 of the stator yoke 5 and has a second positive locking means 27 on its second clamp section 26 protruding from the stator yoke 5, via which the welding clamp 9 is connected to the stator receptacle 4.
- the welding clamp 9 is secured in the receptacle groove 8 via the weld seams 20.
- the first form-locking means 25 and the second form-locking means 27 are designed as a circular opening 28 in the welding clamp 9.
- Figure 16 shows an embodiment in which the stator holder 4 has a rivet 38 extending in the axial direction, which passes through the opening 28 and is then formed into a rivet connection, so that the welding clamp 9 and the stator yoke 5 are fixed to the stator holder 4.
- FIG 17 shows a slightly modified version of the welding clamp 9 known from Figure 16, in which the form-locking means 25, 27 are designed as semicircular openings 28, against each of which a bolt 39 of the stator holder 4 rests.
- the welding clamp 9 can have a third form-locking means 29 formed in the region of the receiving groove 8, via which the welding clamp 9 is connected to the stator holder 4.
- the third form-locking means 29 is formed as an opening 28 in the welding clamp 9.
- the third form-locking means 29 has an internal thread 30, via which the stator holder 4 is screwed to the welding clamp 9.
- the stator yoke 5 can have a recess 40 that is positioned in alignment with the screw 31.
- Figure 19 shows a motor vehicle 44 with an axial flow machine 2 in a drive train 43.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP24735873.2A EP4728618A1 (de) | 2023-06-14 | 2024-06-14 | Statoranordnung für eine elektrische axialflussmaschine |
| CN202480033372.6A CN121219943A (zh) | 2023-06-14 | 2024-06-14 | 用于电动轴向磁通机的定子组件 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102023115498.2 | 2023-06-14 | ||
| DE102023115498.2A DE102023115498A1 (de) | 2023-06-14 | 2023-06-14 | Statoranordnung für eine elektrische Axialflussmaschine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024255967A1 true WO2024255967A1 (de) | 2024-12-19 |
Family
ID=91664631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2024/100525 Ceased WO2024255967A1 (de) | 2023-06-14 | 2024-06-14 | Statoranordnung für eine elektrische axialflussmaschine |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4728618A1 (de) |
| CN (1) | CN121219943A (de) |
| DE (1) | DE102023115498A1 (de) |
| WO (1) | WO2024255967A1 (de) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120086303A1 (en) * | 2010-10-12 | 2012-04-12 | Industrial Technology Research Institute | Reinforcement structure for disc motor |
| US20150171671A1 (en) * | 2012-09-05 | 2015-06-18 | Kone Corporation | Axial flux motor intended for fixing to a machine and method for fixing the axial flux motor to a machine |
| CN111355319A (zh) * | 2020-04-16 | 2020-06-30 | 仪坤动力科技(上海)有限公司 | 一种盘式电机的锁紧结构 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004025492A1 (de) * | 2004-05-21 | 2009-08-06 | Volkswagen Ag | Verfahren zum Fügen mittels mechanischen Eintreibens und Verschweißens eines Fügeelementes, sowie derartiges Fügeelement |
| JP4710993B2 (ja) * | 2009-02-26 | 2011-06-29 | ダイキン工業株式会社 | 電機子用コア |
| DE102012020222A1 (de) * | 2012-10-16 | 2014-04-17 | Volkswagen Aktiengesellschaft | Verfahren zum Fügen von wenigstens zwei Bauteilen mit einem Widerstandsschweißelement, sowie Vorrichtung zur Durchführung des Verfahrens und hiermit hergestellter Bauteilverbund |
| DE102014011599A1 (de) * | 2014-08-02 | 2016-02-04 | Audi Ag | Verfahren zum Fügen zumindest zweier Bauteile |
-
2023
- 2023-06-14 DE DE102023115498.2A patent/DE102023115498A1/de active Pending
-
2024
- 2024-06-14 WO PCT/DE2024/100525 patent/WO2024255967A1/de not_active Ceased
- 2024-06-14 EP EP24735873.2A patent/EP4728618A1/de active Pending
- 2024-06-14 CN CN202480033372.6A patent/CN121219943A/zh active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120086303A1 (en) * | 2010-10-12 | 2012-04-12 | Industrial Technology Research Institute | Reinforcement structure for disc motor |
| US20150171671A1 (en) * | 2012-09-05 | 2015-06-18 | Kone Corporation | Axial flux motor intended for fixing to a machine and method for fixing the axial flux motor to a machine |
| CN111355319A (zh) * | 2020-04-16 | 2020-06-30 | 仪坤动力科技(上海)有限公司 | 一种盘式电机的锁紧结构 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN121219943A (zh) | 2025-12-26 |
| EP4728618A1 (de) | 2026-04-22 |
| DE102023115498A1 (de) | 2024-12-19 |
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