EP4052363A1 - Machine à flux axial destinée à un dispositif de traitement électrique et dispositif de traitement électrique doté d'une machine à flux axial - Google Patents

Machine à flux axial destinée à un dispositif de traitement électrique et dispositif de traitement électrique doté d'une machine à flux axial

Info

Publication number
EP4052363A1
EP4052363A1 EP20796783.7A EP20796783A EP4052363A1 EP 4052363 A1 EP4052363 A1 EP 4052363A1 EP 20796783 A EP20796783 A EP 20796783A EP 4052363 A1 EP4052363 A1 EP 4052363A1
Authority
EP
European Patent Office
Prior art keywords
stator
machine
axial flux
axial
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.)
Withdrawn
Application number
EP20796783.7A
Other languages
German (de)
English (en)
Inventor
Sebastian Laber
Andreas Voelkle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP4052363A1 publication Critical patent/EP4052363A1/fr
Withdrawn legal-status Critical Current

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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/022—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with salient poles or claw-shaped poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles
    • H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/18—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
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • H02K7/145—Hand-held machine tool
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/12—Transversal flux machines

Definitions

  • the invention relates to an axial flux machine, in particular a one-sided axial flux motor, for an electrical machining device and an electrical machining device with an axial flux machine according to the preamble of the independent claims.
  • Axial flux machines have the advantage over conventional electric machines with radial flow direction that they are very efficient and have a significantly reduced overall length. In addition, a higher torque or power density can be achieved with the same outer diameter. These improvements are due, among other things, to a larger air gap area with a comparable construction volume. Thanks to the lower iron volume of the rotating components, there is also a higher degree of efficiency over a larger speed range.
  • stator of an axial flux machine is relatively complex due to the required 3-D magnetic flux guidance.
  • the grooves in the laminated core usually have to be punched out before the stator winding is wound.
  • the individual sheets result in disadvantages such that the pole pieces only protrude tangentially and that the stator teeth with the pronounced pole pieces cannot be wound externally, which results in a low fill factor of the stator winding and a correspondingly reduced efficiency.
  • the stator of the axial flow machine has a sintered support structure made of soft magnetic material and an insert designed as a laminated core.
  • the insert is connected to the support structure via a form fit and / or force fit and at least partially forms a pole piece of the axial flow machine.
  • the laminated core is formed by means of individual, stacked layers of single metal sheets, which consist of a soft iron. The individual sheets are electrically connected to one another in an insulated manner with respect to the respectively adjacent sheet.
  • the stators of axial flux machines are also built purely from composite materials (Soft Magnetic Composites - SMC).
  • S MC materials consist of high-purity iron powder with a special surface coating on each individual particle. This electrically insulating surface ensures a high electrical resistance even after pressing and heat treatment, which in turn minimizes or prevents eddy current losses.
  • SMC materials are known to the person skilled in the art, so that their composition will not be discussed further here.
  • the stator teeth of the winding carrier and at least one stator yoke serving as a magnetic yoke can be manufactured separately and, after the stator teeth have been wound with the respective individual tooth windings of the stator winding, they can be permanently connected to one another.
  • the connection is usually made via a joining process, for example by gluing.
  • Gluing can, however, affect the planparality of the stator teeth to the radial air gap between them and also requires additional fixation during the hardening of the glue.
  • the invention relates to an axial flux machine, in particular a one-sided axial flux motor, for an electrical processing device, with a machine shaft, in particular a motor shaft, a disk-shaped stator and a disk-shaped rotor arranged in the axial direction of the machine shaft adjacent to the stator, the stator as a winding carrier for at least one Stator winding is formed and the rotatably connected to the machine shaft dene rotor relative to the stator can be set in a rotary motion.
  • the stator has a plurality of stator teeth and a first stator yoke, the stator teeth and the first stator yoke being permanently connected to one another by laser welding.
  • the laser welding results in a high level of parallelism between the stator teeth and the radial air gaps between them in connection with a simplified and faster production of the stator.
  • adhesive bonding there is no adhesive gap between the stator teeth and the first stator yoke.
  • the invention also relates to an electrical processing device, in particular an electric machine tool, with an axial flux machine according to the invention, in particular an axial flux motor according to the invention.
  • the electric machining device is to be understood to mean, among other things, battery-powered or mains-operated electric machine tools for machining workpieces by means of an electrically driven insert tool.
  • the electrical processing device can be designed both as a handheld electrical tool and as a stationary electrical machine tool.
  • Typical power tools in this context are hand or standing drills, screwdrivers, impact drills, rotary hammers, demolition hammers, planes, angle grinders, orbital grinders, polishing machines or the like.
  • Motor-driven garden tools such as lawnmowers, lawn trimmers, pruning saws or the like are also suitable as electrical processing devices.
  • the invention is applicable to axial flow machines in household and Kitchen appliances such as washing machines, dryers, vacuum cleaners, mixers, etc. can be used.
  • axial flux machine can include both an axial flux motor and an axial flux generator for converting mechanical into electrical energy.
  • An axial flux machine is also to be understood as an axial flux motor that is used at least temporarily for recuperation from mechanical to electrical energy, as can be the case, for example, with electrodynamic braking of an axial flux motor.
  • a drilling is provided in the first stator yoke, through which the stator tooth can be connected to the first stator yoke by means of laser welding.
  • a weld seam for connecting the first stator yoke and the respective stator tooth can extend over the entire circumference or, alternatively, only selectively over the circumference of the bore.
  • 1 a section through an axial flux machine according to the invention in the form of a one-sided axial flux motor in a first exemplary embodiment
  • 2 a schematic view of a further exemplary embodiment of a stator of the axial flux machine according to the invention
  • FIG. 3 an exploded view of the stator from FIG. 2 in a schematic view without the stator winding
  • Fig. 5 a schematic sectional view of a rotor of the fiction, contemporary axial flow machine
  • FIG. 7 a further schematic view of the empty housing of the axial flow machine according to the invention from FIG. 6,
  • FIG. 9 two exemplary embodiments of triangular parallel connections in FIG.
  • an electrical processing device in particular an electric machine tool in the form of a hammer drill, with an axial flow machine according to the invention.
  • FIG. 1 a first embodiment of an axial flow machine 10 according to the invention is shown in a section.
  • the axial flux machine 10 can equally be designed as an axial flux motor or as an axial flux generator.
  • On a machine shaft 12 of the axial flow machine 10 is rotatably fixed with the Maschi nenwelle 12, a disc-shaped rotor 14 is arranged.
  • the rotor 14 is designed as a laminated ring 16 made of soft magnetic iron and carries an alternately magnetized magnetic ring 18, which will be discussed in greater detail with reference to FIG.
  • the rotor 14 can alternatively consist of non-soft magnetic materials such as iron or of a soft magnetic steel with a low carbon content.
  • a disk-shaped stator 20 which is designed as a winding carrier 22 for at least one stator winding 24 (see FIG. 2) and which has a first stator yoke 26 which serves as a magnetic return path of the magnetic field resulting from the stator winding 24 and the magnetic ring 18.
  • the rotor 14 can be set in a rotary movement via the motor shaft 12.
  • the motor shaft 12 is on the one hand via a first bearing 28 integrated in the stator yoke 26, which is designed, for example, as a fixed bearing 30, and on the other hand via a second bearing 36 accommodated in a housing 32 of an electrical machining device 34 (see FIG. 10), the example is designed as a floating bearing 38, rotatably mounted.
  • the first and second bearings 28, 36 are preferably designed as ball bearings.
  • the first bearing 28 is integrated directly into the winding support 22 and / or into the first stator yoke 26. For example, it can be pressed in or injected.
  • one-sided axial flux machines have a very high tensile force in the axial direction A of the machine shaft 12 in the air gap between the rotor 14 and the stator 20, this can be intercepted by the first bearing 28, designed as a fixed bearing 30, in the first stator yoke 26. It is therefore not necessary to absorb the axial force through the housing 32 of the electrical machining device 34 and / or through a housing of the axial flow machine (cf. FIGS. 6 and 7).
  • FIG. 2 shows a schematic view of a further exemplary embodiment of the disk-shaped stator 20 of the axial flux machine 10 according to the invention.
  • the stator 20 essentially comprises the first stator yoke 26, a second stator yoke 42 arranged adjacent to it in the axial direction A of the machine shaft 12, and the second stator yoke 42 42 in the axial direction A of the machine shaft 12 arranged adjacent winding carrier 22.
  • the winding carrier 22 consists essentially of a plurality of, in particular six, stator teeth 44 carrying the stator winding 24, each stator tooth 44 being assigned a single tooth winding 46 of the stator winding 24.
  • the individual tooth windings 46 are electrically connected to one another in a triangular parallel circuit 48.
  • the stator teeth 44 and the first stator yoke 26 of the stator 20 are made of composite materials (Soft Magnetic Composites - SMC) and are permanently connected to one another, in particular glued, by means of a joining process.
  • SMC materials consist of high-purity iron powder with a special surface coating on each individual particle. This electrically insulating surface ensures a high electrical resistance even after pressing and heat treatment, which in turn minimizes or prevents eddy current losses.
  • stator teeth 44 with the first stator yoke 26 enables the winding carrier 22 to be wound externally by applying the stator winding 24 or the individual tooth windings 46 to the stator teeth 44 during the joining process. In this way, a high fill factor of the stator winding 24 can be achieved.
  • the number of slots 50 corresponds to the number of stator teeth 44.
  • the second Stator yoke 42 thus stabilizes the stator 20 in the event of strong mechanical stress and ensures improved magnetic flux guidance due to its high permeability.
  • the grooving of the laminated core 48 not only results in better absorption of the composite materials and thus the greater stability of the stator 20, but also ensures an optimized guidance of the eddy currents caused by the stator winding 24 essentially.
  • the second stator yoke 42 has ring-shaped, circular segment-shaped recesses 52 for receiving the stator teeth 44, each groove 50 interrupting the outer circumference of the second stator yoke 42 up to the respective radially inner recess 52.
  • Each stator tooth 44 is formed by a circular segment-shaped tooth flange 54, which engages through the circular segment-shaped recess 52 of the second stator yoke 42, and a circular segment-shaped support frame 56 encompassing the tooth flange 54 with a circumferential U-profile 58 for receiving the stator winding 24 or the individual tooth windings 46 .
  • Tooth flange 54 and support frame 56 are permanently connected to one another, in particular glued, by means of a joining process.
  • FIG. 4 shows a schematic view of a section of the stator 20 according to the invention in a further exemplary embodiment.
  • the stator teeth 44 or their tooth flanges 54 are passed through the recesses 52 of the second stator yoke 42 and permanently connected to the first stator yoke 26 by laser welding.
  • a bore 60 is provided in the first stator yoke 26, through which the stator tooth 44 can be connected to the first stator yoke 26 by means of laser welding.
  • a weld seam extends over the entire circumference of the bore 60.
  • the weld seam extends only selectively over the circumference of the bore 60.
  • stator yoke 42 it is alternatively also conceivable to dispense with the second stator yoke 42 and instead to connect the first stator yoke 26, designed as a laminated ring 16 made of soft magnetic iron, directly to the stator teeth 44 made of composite materials, in particular by means of the bore 60 in the first To weld stator yoke 42.
  • FIG. 5 a schematic view of the rotor 14 of the axial flow machine 10 according to the invention is shown in section.
  • the rotor 14 is designed as a laminated ring 16 made of soft magnetic iron. It also carries an alternately polarized magnet ring 18, which interacts with the stator winding 24 of the stator 20 in order to set the rotor 14 in rotation during motor operation or to induce a voltage in the stator winding 24 in generator operation.
  • the magnets of the magnet ring 18, not shown in detail, are designed in the shape of a segment of a circle that their surfaces largely overlap with the segment of a circle stator teeth 44 in order to achieve an optimal magnetic flux in conjunction with a high torque.
  • a ring with embedded individual magnets is alternatively also conceivable.
  • the rotor 14 is generally not exposed to an alternating field, so that no or only very low eddy current losses occur here. Therefore, the rotor 14 of the axial flow machine 10 can alternatively also consist of a non-soft magnetic material.
  • the laminated ring 16 of the rotor 14 is designed as a rotor yoke 62 which is either permanently connected to a bidirectional fan 40 by a joining process, in particular glued, or which itself serves as a bidirectional fan 64.
  • the bidirectional fan 40, 64 has at least one radial air flow direction 66 and one axial air flow direction 68 for cooling the axial flow machine 10, in particular for cooling the stator 20 or the stator winding 24 and the rotor 14.
  • the radial air flow direction 66 is essentially defined by a plurality of radial air blades 70 arranged in a circle in the outer radius area of the bidirectional fan 40, 64 and the axial air flow direction 68 by a plurality in the inner radius area of the rotor yoke 62 arranged axial openings 72 achieved.
  • the bidirectional fan 40, 64 causes a radial suction 74 of an air flow 76 with an axial flow 78 through the stator 20 and the rotor 14 of the axial flow machine 10 and a radial outlet 80 of the heated air flow 76 from a housing 82 of the Axial flux machine 10.
  • the radial suction 74 of the air flow 76 takes place on the one hand through the air gap between the stator teeth 44 (see FIG. 2) and on the other hand in the area of the first stator yoke 26 of the stator 20, in particular on a distal end face viewed from the rotor 14 84 of the first stator yoke 26.
  • FIG. 7 the axial flow machine 10 is shown with its housing 82 together with a cover 86 that closes it.
  • FIG. 8 shows the housing 82 without axial flow machine 10 and cover 86.
  • the housing 82 is open on one side to accommodate the cover 86 and, opposite, has an essentially closed end face 88 (cf. FIG. 8).
  • the cover 86 closes the housing 82 and thus frictionally connects the stator 20 and the rotor 14 of the axial flow machine 10.
  • “essentially closed” should be understood to mean that the end face 88 has a plurality of openings 90, for example for cooling , as cable passages and / or as a lead-through for the machine shaft 12, but alternatively also that the end face 88 is completely closed.
  • the housing 82 is cylindrical and fixes the stator 20 in such a way that a defined air gap is created between the rotor 14 or its magnetic ring 18 and the stator 20 or its winding carrier 22.
  • the housing 82 is made of a magnetically insulating mate rial with the lowest possible permeability such as plastic (PA66) ago.
  • the cover 86 can also be designed accordingly.
  • the essentially closed end face 86 of the housing 82 has the second bearing designed as a floating bearing 38 in a further bearing flange 94 36 for the displaceable mounting of the machine shaft 12. In this way the housing 82 can be pushed on very easily after the assembly of the axial flow machine 10 and removed again for any service work.
  • a plurality of recesses 96 and tabs 98 for receiving and fixing the stator 20 are arranged alternately over the circumference of the housing 82.
  • Radial projections (see FIGS. 2 and 3) distributed over the circumference of the first and second stator yokes 26, 42 of the stator 20 engage in the respective recesses 96 of the housing 82.
  • the cover 86 also contains radial projections formed as tabs 106 which engage in the recesses 96 of the housing 82. In this way, the high axial forces of the axial flow machine 10 can be dissipated in the direction of the cover 86.
  • each tab 98 of the housing 82 there is at least one bore 100 for fixing the cover 86 and consequently also the stator 20 by means of corresponding fastening means 102, in particular screws 104.
  • the fastening means 102 transmit the axial force of the axial flow machine 10 to the housing 82 and are thus subject to shear stress.
  • the openings 90 on the essentially closed end 88 of the housing 82 are designed as radially and / or axially acting ventilation openings 104, in particular as ventilation outlet openings 106, for cooling the axial flow machine 10 (see also FIG. 6).
  • the housing 82 has a plurality of radially acting ventilation openings 108 distributed over the circumference, in particular ventilation inlet openings 110, approximately centrally between the essentially closed end face 88 and the open side opposite in the axial direction A.
  • further openings 90 are provided, in particular in the tabs 98 of the housing 82, which can serve as feedthroughs 112 for sensor lines or the like.
  • FIG. 9a shows a circuit diagram of the stator winding 22 as a triangular parallel circuit 48 of the six individual tooth windings 46 of the stator teeth 44 (see FIG. 2).
  • Two individual tooth windings 46 are connected in parallel between the connection points U and V, V and W or W and U per phase.
  • the delta connection as such has the effect that on each individual tooth winding 46 the entire Supply voltage drops. This requires an increase in the number of turns of the individual tooth windings 46 in order to achieve a specifically required speed in motor operation or a specifically required energy yield in generator operation. Due to the additional parallel connection, the winding wire diameter can be increased in a particularly advantageous manner and thus the resulting internal resistance can be reduced.
  • FIG. 9 b shows an alternative embodiment of the triangular parallel circuit 48 for a total of nine individual tooth windings 46 of the stator winding 22.
  • FIG. 10 an exemplary embodiment of an electrical machining device 34 with the axial flow machine 10 according to the invention according to FIG. 1 is shown.
  • the electrical processing device 34 is designed as an electric machine tool 112 in the form of a mains-operated hammer drill with an electric motor driven percussion mechanism 114, which sets a drill chuck 116 for a tool (not shown) in a rotary and / or percussive movement.
  • the exact design of the hammer drill will not be discussed in detail here, since this is well known to the person skilled in the art.
  • Any other battery-powered or mains-operated power tool 112 for machining workpieces by means of an electrically driven insert tool can also be understood as an electrical machining device.
  • the electrical Bear processing device can be designed both as an electrical hand tool and as a stationary electrical machine tool.
  • Typical electric machine tools in this context are hand or standing drills, screwdrivers, impact drills, rotary hammers, demolition hammers, planes, angle grinders, orbital grinders, polishing machines or the like.
  • Motor-driven gardening tools such as lawn mowers, lawn trimmers, pruning saws or the like can also be used as electrical processing equipment.
  • the invention is applicable to axial flow machines in household and kitchen appliances, such as washing machines, dryers, vacuum cleaners, mixers, etc.
  • the axial flux machine 10 of the power tool machine 112 which operates as an axial flux motor, drives by means of its machine shaft 12 in a known manner the hammer mechanism 114 via a gear 118.
  • the axial flux machine 10 is controlled via a main switch 122 arranged in a D handle 120 of the electric power tool 112, which interacts with electronics not shown to energize the stator winding 22 connected in a triangular parallel circuit 48.
  • the stator 20 of the axial flux machine 10 is received directly in the housing 32 of the electric machine tool 112.
  • the stator 20 and the housing 32 are permanently connected to one another, in particular glued, by a joining process.
  • the stator 20 can also be permanently connected to the housing 32, in particular pressed, by a form fit.
  • the housing 32 or a gear housing 122 of the electric machine tool 112 receives the second bearing 36 connected to the machine shaft 12 of the axial flow machine 10, in particular as a floating bearing 38.
  • the electric machine tool 112 or the electric machining device 34 can also be equipped with a
  • Axial flux machine 10 according to Figures 6 to 8 be equipped.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

L'invention concerne une machine à flux axial (10), en particulier un moteur à flux axial unilatéral, destinée à un dispositif d'usinage électrique (34), comprenant un arbre de machine (12), en particulier un arbre de moteur, un stator discoïde (20) et un rotor discoïde (14) disposé de manière adjacente au stator (20) dans la direction axiale (A) de l'arbre de machine (12), le stator (20) se présentant sous la forme d'un support d'enroulement (22) pour au moins un enroulement de stator (24) et le rotor (14), qui est relié de manière fixe en rotation à l'arbre de machine (12), pouvant être entraîné en rotation par rapport au stator (20). Selon l'invention, le stator (20) comprend une pluralité de dents de stator (44) et une première culasse de stator (26), les dents de stator (44) et la première culasse de stator (26) étant reliées de manière permanente par soudage au laser. L'invention concerne également un dispositif de traitement électrique (34) doté d'une machine à flux axial (10).
EP20796783.7A 2019-10-31 2020-10-22 Machine à flux axial destinée à un dispositif de traitement électrique et dispositif de traitement électrique doté d'une machine à flux axial Withdrawn EP4052363A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019216861.2A DE102019216861A1 (de) 2019-10-31 2019-10-31 Axialflussmaschine für ein elektrisches Bearbeitungsgerät sowie elektrisches Bearbeitungsgerät mit einer Axialflussmaschine
PCT/EP2020/079761 WO2021083784A1 (fr) 2019-10-31 2020-10-22 Machine à flux axial destinée à un dispositif de traitement électrique et dispositif de traitement électrique doté d'une machine à flux axial

Publications (1)

Publication Number Publication Date
EP4052363A1 true EP4052363A1 (fr) 2022-09-07

Family

ID=73013435

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20796783.7A Withdrawn EP4052363A1 (fr) 2019-10-31 2020-10-22 Machine à flux axial destinée à un dispositif de traitement électrique et dispositif de traitement électrique doté d'une machine à flux axial

Country Status (4)

Country Link
EP (1) EP4052363A1 (fr)
CN (1) CN114600340A (fr)
DE (1) DE102019216861A1 (fr)
WO (1) WO2021083784A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021215043A1 (de) * 2021-12-27 2023-06-29 Robert Bosch Gesellschaft mit beschränkter Haftung Axialflussmaschine und Pumpe

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6617747B1 (en) * 2002-07-02 2003-09-09 Petersen Technology Corporation PM motor and generator with a vertical stator core assembly formed of pressure shaped processed ferromagnetic particles
JP5458522B2 (ja) * 2007-12-17 2014-04-02 ダイキン工業株式会社 電機子用磁芯、電機子、回転電機及び圧縮機
JP4710993B2 (ja) * 2009-02-26 2011-06-29 ダイキン工業株式会社 電機子用コア
KR20100119209A (ko) * 2009-04-30 2010-11-09 삼성전자주식회사 모터 및 그 제조방법과 세탁기
DE102012216496A1 (de) * 2012-09-17 2014-03-20 Robert Bosch Gmbh Handwerkzeugmaschine
DE102015213908A1 (de) * 2015-07-23 2017-01-26 Robert Bosch Gmbh Geometrisch optimierter Stator für eine elektrische Maschine sowie elektrische Maschine
DE102015223766A1 (de) * 2015-11-30 2017-06-01 Baumüller Nürnberg GmbH Elektrische Maschine
EP3331140A1 (fr) * 2016-12-02 2018-06-06 Miba Sinter Austria GmbH Moteur à disque
US10141804B2 (en) * 2017-01-11 2018-11-27 Infinitum Electric Inc. System, method and apparatus for modular axial field rotary energy device

Also Published As

Publication number Publication date
CN114600340A (zh) 2022-06-07
DE102019216861A1 (de) 2021-05-06
WO2021083784A1 (fr) 2021-05-06

Similar Documents

Publication Publication Date Title
DE19636591C2 (de) Synchrongenerator für einen getriebelosen Windenergiekonverter
EP4052360A1 (fr) Machine à flux axial pour un dispositif de traitement électrique et dispositif de traitement électrique doté d'une machine à flux axial
WO2021104765A1 (fr) Rotor pour une machine électrique et procédé de production d'un rotor
WO2015192994A1 (fr) Machine-outil à main équipée d'un moteur électrique à commutation électronique comme entrainement direct
WO2017144228A1 (fr) Rotor pour une machine dynamoélectrique tournante excitée par aimants permanents et son utilisation
EP2279058B1 (fr) Machine-outil avec moteur d'entraînement électrique
WO2021083784A1 (fr) Machine à flux axial destinée à un dispositif de traitement électrique et dispositif de traitement électrique doté d'une machine à flux axial
EP4052355A1 (fr) Machine à flux axial destinée à un dispositif de traitement électrique et dispositif de traitement électrique doté d'une machine à flux axial
WO2021083763A1 (fr) Machine à flux axial de dispositif de traitement électrique et dispositif de traitement électrique doté d'une machine à flux axial
DE102013210962A1 (de) Handwerkzeugmaschine mit einem elektromotorischen Antrieb und mindestens einem ersten Gehäuseteil
EP1923978A2 (fr) Ponceuse orbitale avec un moteur sans balai
EP1923173B1 (fr) Machine-outil manuelle
WO2008068033A2 (fr) Générateur à induction comportant un induit en cloche
WO2021083783A1 (fr) Machine à flux axial destinée à un dispositif de traitement électrique et dispositif de traitement électrique doté d'une machine à flux axial
WO2021116076A1 (fr) Outil électrique portatif
WO2021083761A1 (fr) Machine à flux axial pour un dispositif de traitement électrique et dispositif de traitement électrique doté d'une machine à flux axial
EP0788779B1 (fr) Moteur à courant continu pour l'entraínement d'un instrument dentaire
DE4138014C1 (en) Electromechanical power converter in rotary or linear form - has permanent magnets assembled in rotor driven by AC stator winding with pole elements
EP2295621B1 (fr) Broche à friction motorisée
DE19957131A1 (de) Seitenkanalmaschine
DE102011085878A1 (de) Elektrische Maschine
EP2871752A1 (fr) Rotor d'une machine synchrone rotative à excitation permanente
AT511907B1 (de) Elektrische maschine mit einem gelagerten, ein ferromagnetisches material und mindestens einen reluktanzhauptpol aufweisenden reluktanzläufer
DE102018216912A1 (de) Elektrische Antriebsmaschine für einen Verdichter und/oder eine Turbine, Turbolader und/oder Turbine
DE10107760A1 (de) Elektrische Maschine

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20220531

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20221221