EP3596811A1 - Machine électrique - Google Patents

Machine électrique

Info

Publication number
EP3596811A1
EP3596811A1 EP18711516.7A EP18711516A EP3596811A1 EP 3596811 A1 EP3596811 A1 EP 3596811A1 EP 18711516 A EP18711516 A EP 18711516A EP 3596811 A1 EP3596811 A1 EP 3596811A1
Authority
EP
European Patent Office
Prior art keywords
winding
stator
disc
electrical machine
machine according
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Withdrawn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
EP18711516.7A
Other languages
German (de)
English (en)
Inventor
Olaf Böttcher
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.)
Green Fox E Solutions GmbH
Original Assignee
Green Fox E Solutions 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 Green Fox E Solutions GmbH filed Critical Green Fox E Solutions GmbH
Publication of EP3596811A1 publication Critical patent/EP3596811A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/28—Layout of windings or of connections between windings
    • 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
    • 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
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
    • H02K3/14—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots with transposed conductors, e.g. twisted conductors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/47—Air-gap windings, i.e. iron-free windings
    • 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
    • H02K7/003—Couplings; Details of shafts
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information

Definitions

  • the present invention relates to an electric machine having a disk-shaped stator and a disk-shaped rotor.
  • the present invention is therefore based on the object to propose an electric machine which is constructed such that the most efficient operation possible with optimized torques.
  • An electric machine has at least one disc-shaped stator with at least one winding of an electrically conductive wire and at least one rotor rotatable relative to the stator.
  • the rotor is provided with a first permanent magnet and at least one second permanent magnet, which are arranged such that a north pole of the first permanent magnet and a south pole of the second permanent magnet point in the direction of the stator.
  • the winding is arranged radially circumferentially in a meandering shape with alternating sections arranged in the radial direction and sections arranged in the tangential direction on the disk-shaped stator such that loops of the winding arranged on two opposite surfaces of the disk-shaped stator only in their sections arranged in the radial direction, at least In some areas or in their arranged in the tangential direction sections are only partially overlaid.
  • the winding may be alternately arranged on one of the two surfaces of the disk-shaped stator or on each of the surfaces of the disk-shaped stator, one winding of the wire is arranged in each case.
  • disk-shaped is to be understood in the context of this document in particular that a corresponding component has a length and a width which are substantially greater than its thickness. Typically, both the length and the width of a disk-shaped component are at least twice as large as its thickness. In particular, the term “disk-shaped” is intended to mean a cylindrical component whose radius or diameter is at least twice as great as its height.
  • the arrangement results on different surfaces, typically a two-sided arrangement, with the sections arranged in the radial direction, which are guided in sections or sections parallel to each other (and aligned above one another in plan view in particular) can be arranged horizontally), or arranged in the tangential direction sections which are not completely on the two sides, but only partially superimposed, a structure in which in plan view two on
  • the loops of the meander arranged opposite the surfaces of the disc-shaped stator complement each other to form a closed loop, so that upon application of an electrical current by a current source or a voltage source due to the Lorentz force, a correspondingly directed magnetic field is formed which can interact with the permanent magnets ,
  • the described arrangement increases a density of these closed loops over the circumference of the stator, so that a correspondingly higher torque can be generated.
  • the surfaces on which the winding is applied are typically in the direction of the rotor or, in the case of a cylindrical disk, the cylinder surfaces. It can be provided that at least one of the loops is formed on one of the two surfaces of the stator as a multiple turn of the electrically conductive wire. By one of the loops is circulated several times (and thus forms a loop), the Lorentz force can be amplified accordingly and thus the torque can be adjusted.
  • the winding forming wire disposed on different surfaces of the disc-shaped stator is spaced from the wire on the other side.
  • the spatial distance ensures that there are no electrical short circuits.
  • the wire is preferably in any case with an electrically insulating
  • the security is increased again.
  • it can be provided that even with a change of the wire from one side to the other side, a spatial distance is maintained.
  • the rotor may have at least two disks, which are arranged coaxially to each other and between which a respective disc of the stator is arranged.
  • the rotor and the stator are in this case arranged spatially spaced from each other, that is, each of the discs of the rotor is spaced from an adjacent hard disc of the stator.
  • the rotor and the stator are thus preferably provided in a coaxial arrangement, wherein in each case a rotor disk can be provided at the beginning and at the end of the shaft.
  • the rotor disks are attached to the shaft, while the
  • Statorinn can be attached to a base plate and or or a housing. However, it can also be provided that the stator disks are fastened to the shaft and the rotor disks are attached to the base plate and / or to the housing.
  • the permanent magnets on the rotor should be arranged at a distance to the center of the rotor disk, in which the winding is also arranged on the stator, so that the permanent magnets and the winding correspond.
  • the rotor disk itself may be made of a material that is not ferromagnetic. Typically, the material is a plastic and the rotor disc is made by an injection molding process.
  • the at least two permanent magnets are typically arranged on the rotor disk or introduced into the rotor disk. An upper side of one of the permanent magnets can terminate flush with a surface of the rotor disk.
  • the permanent magnets are arranged on at least one circular path on the rotor disk and have an identical distance to a center. If more than two permanent magnets are provided, the permanent magnets can also be arranged on two, three or more circular paths.
  • three rotor disks can be provided, which are arranged coaxially with one another and between which a disk of the stator is arranged in each case.
  • a multi-phase, preferably three-phase control is possible. Since in conventional motors or generators for amplifying a magnetic field, an iron return is provided, which is just omitted in the present invention, a power gain is greater, if a caused by the iron yoke additional weight by a stator and rotor disc lower
  • the rotor comprises at least four Disks which are arranged coaxially to each other and between which a respective disc of the stator is arranged, so that an electric generator or motor is realized.
  • This modular design increases variability of the electric machine.
  • the permanent magnets of the rotor are arranged on individual, circular or annular modules, wherein individual modules can be combined to form a complete rotor disk. This makes it possible to quickly set any combinations of permanent magnets for the rotor and thus to adjust the performance of the electric machine.
  • the permanent magnets are only, d. H. arranged exclusively on the rotor and the stator is free of permanent magnets.
  • a magnetic field on the stator can be formed exclusively by the winding.
  • Rotor and stator are typically spaced apart from each other so that the rotor can rotate relative to the stator.
  • the electrical machine has an electrical power source and / or an electrical voltage source to which the electrically conductive wire can be connected or is.
  • the electrically conductive wire is typically connected to the current source or the voltage source in such a way that the sections arranged in the radial direction, at least partially overlapping on different sides, flow through the electric current in at least one of these sections, typically in all of these sections so that a correspondingly directed Lorentz force is formed.
  • the electric current source or the electrical voltage source can be operated pulsed, so that the winding is traversed by pulses of the electric current.
  • a control unit may also be provided on the electric motor. In particular, this control unit may be arranged to control the pulses of the electrical current such that the electrical current in the winding is minimized if the sections arranged in the radial direction are aligned over the permanent magnet, while the electric current is limited in terms of its current intensity, when the sections arranged in the radial direction do not cover any of the permanent magnets in plan view.
  • the windings of these stator disks are connected to the electric power source such that a phase angle of an electric current in one of the windings of the three disks of the stator is respectively a difference of
  • the permanent magnets can all have an identical shape and / or size, but also be different at least in pairs. In particular, at least one of the permanent magnets may have a different shape or size from the other permanent magnets. It can be provided that the electric power source for supplying the
  • Windings of the stator is provided with electric current and the winding on one surface of the stator has a phase angle which is opposite to the electric current flowing in the arranged on the other surface of the stator winding, a difference in the phase angle of between 80 ° and 100 ° , preferably 90 °.
  • the winding may be arranged such that a point of the one winding closest to the center of the stator disk is radially below a point located midway between the closest point and the farthest point with respect to that center point
  • Point of the winding is arranged on the other surface.
  • a phase angle of 360 ° it can be said in the context of this document that a distance between two or three of the sections of the winding arranged in the radial direction should correspond to the phase angle of 360 °.
  • the winding is constructed of at least two individual wires extending on one of the surfaces parallel to each other.
  • the winding can be constructed from a flat wire.
  • the flat wire is arranged in this case such that a wider of its surfaces or surfaces runs parallel to a rotation axis of the electric machine, about which the rotor is rotatably mounted.
  • the wider of the surfaces is thus oriented parallel to a direction of the magnetic flux and is orthogonal to the longitudinal axis of the flatwire.
  • a flat wire here is in particular everyone
  • Wire are considered, which has a rectangular cross-section in cross-section, ie parallel to its longitudinal axis, in which typically a width is greater than a thickness. Preferably, the width is at least twice as large as the thickness.
  • the flat wire can be made of aluminum, preferably anodized aluminum, copper or another electrically conductive
  • Alloy or a metal may be formed.
  • the flat wire is preferably wound without kinking in order to form the winding, so that the electrical resistance is minimal and the formation of electrical eddy currents is as far as possible prevented. It can also be provided to apply the flat wire (which is typically between 2 mm and 10 mm, preferably 5 mm wide) in multiple layers to form the winding.
  • the winding is fixed in a recess of the stator.
  • the stator having a recess for receiving the wire forming the winding, the wire can also be applied in multiple layers and thus compact.
  • the fixation can in this case have a mechanical fixation by at least one clamp or a projection around which the wire is guided.
  • the recess can also be filled with a resin or an adhesive in order to keep the wire stationary.
  • the winding results in at least four loops by two loops are arranged on each of the sides of the stator, which connect in plan view to the four loops.
  • the meander-shaped winding may have a periodic shape, that is to say that a structure of the winding is repeated at predetermined spatial distances.
  • each of the loops of the meander is identically constructed, so that there is a rotationally symmetrical arrangement of the winding on the stator, which in other words has a waveform.
  • a change of winding from one side of the stator to the other side is typically done by one or more apertures in the stator disk. These openings can be arranged at different distances from the center of the disk-shaped stator.
  • at least one aperture is located at a position where the winding has a minimum distance to the center or a maximum distance to the center.
  • the breakthrough can also be arranged centrally between the two latter positions.
  • a page change occurs periodically, typically after each loop or loop of the winding.
  • the winding is alternately arranged on one of the two surfaces of the stator, wherein the two surfaces each have a winding body on which the winding is wound.
  • the winding is typically guided radially out of a surface at least once through an opening in the recess and wound on the winding body of the opposite surface.
  • At least two intertwined windings can be arranged on the disk-shaped stator, wherein each of the windings is guided tangentially from the surface at least once through an opening on the opposite surface. This allows a particularly space-saving arrangement with high loop density.
  • each of the windings can have tangential sections at least one midpoint-near section and at least one midpoint-remote section, at which the respective winding is guided from the surface of the stator through the opening onto the opposite surface.
  • each of the apertures, through which one of the windings is guided is between a radial section of a winding adjacent to the surface and a radial section extending on the opposite surface of one of these windings Winding arranged adjacent to another winding.
  • the electrical machine described can be designed in disk-type design and / or in Axial letbauweise.
  • the winding has as many loops as permanent magnets are provided on the rotor.
  • a number of loops may be an integer multiple of the number of permanent magnets, or the number of permanent magnets may be an integer multiple of the number of loops of the winding.
  • the ratio may be 3: 4 or an integer multiple thereof.
  • the number of loops of the winding and the number of permanent magnets should in this case be considered in pairs for one stator disk and one adjacent rotor disk, if several rotor disks and / or a plurality of stator disks are provided.
  • the rotor disks can each have an identical structure, i. H.
  • an equal number of permanent magnets have, but it can also be provided that at least one of the rotor disks has a different structure from the other rotor disks, for example, a reduced or increased number of permanent magnets.
  • all stator disks can be constructed identically, in particular in the
  • stator discs With regard to the number of loops, but it can also have at least one of the stator discs have a different structure from the other stator discs. Embodiments of the invention are illustrated in the drawings and are explained below with reference to FIGS 1 to 19.
  • FIG. 1 shows a schematic side view of an electrical machine; a plan view of a rotor;
  • Fig. 3 is a view corresponding to Figure 2 of a stator
  • FIG. 4 a view corresponding to FIG. 3 of a stator in which a weighing alternately on different sides;
  • FIG. 5 shows a view corresponding to FIG. 3 of a stator in which a winding is arranged several times circumferentially on a loop of a meander;
  • FIG. 6 is a view corresponding to Figure 3 of a stator, in which two windings offset from one another on different sides are arranged.
  • FIG. 7 is a view corresponding to FIG. 3 of a stator in which winding is secured in a recess of a stator disk;
  • FIG. 8 shows a view corresponding to FIG. 2 of a rotor with differently shaped permanent magnets
  • FIG. 9 is a view corresponding to FIG. 3 of a stator with two windings running on different sides;
  • Fig. 10 is a schematic view of a multiple winding
  • Fig. 11 is a schematic view of a periodic winding
  • Figure 12 is a view corresponding to Figure 11 of a periodic winding with a change of sides.
  • Fig. 13 is a plan view of a wire disposed over a permanent magnet
  • Figure 14 is a view corresponding to Figure 13 of the wire, which is arranged adjacent to the permanent magnet.
  • Fig. 15 is a plan view of a stator with bobbins
  • Fig. 16 is a sectional view of the stator with wound flat wire
  • 17 is a perspective view of several circularly interconnected braided wire packages
  • FIG. 18 is a plan view of the wire packages shown in FIG. 17, and FIG. 19 is a side view of those shown in FIGS. 17 and 18.
  • FIG. 19 is a side view of those shown in FIGS. 17 and 18.
  • FIG. 1 shows, in a schematic view, a brushless electric machine without iron yoke in disk-type and axial-flow construction.
  • a housing 6 which may be formed of a plastic or a metal, a shaft 4 is guided on ball bearings 5.
  • ball bearings 5 On the shaft 4 a total of four disc-shaped rotors 2 are mounted parallel to each other in the illustrated embodiment.
  • At each of the rotors 2, at least two permanent magnets 31 and 31 are arranged in mutual alignment, i. H. in that at least one north pole of one of the permanent magnets 31, 32 and at least one south pole of one of the permanent magnets 31, 32 point in different directions.
  • a disc-shaped stator 1 is mounted in each case, which is connected to the housing 6.
  • a winding of an electrically conductive wire is guided, which upon application of an electric current through the
  • stator disks 1 are likewise arranged parallel to one another and parallel to the rotor disks 2.
  • the stator disks 1 and the rotor disks 2 are in the illustrated embodiment of a plastic, but may also be constructed of other materials. Preferably, however, materials are used which show no ferromagnetic properties.
  • the stator disks 1 and the rotor disks 2 can also be arranged on the shaft 4 between two disks of mu metal.
  • any number of rotors 2 and also any number of stators 1 may be provided in further embodiments.
  • three rotor disks 2 are parallel to each other. arranged one above the other.
  • an electric generator can be built.
  • the windings of the stator disks 1 are preferably constructed identically to one another and lie one above the other in a top view in alignment in order to bundle a generated magnetic field.
  • control unit 13 which includes a current source or a voltage source with which the winding of the stator 1 can be supplied with a pulsed electric current.
  • FIG. 2 shows one of the rotors 2 in plan view. Recurring features are provided with identical reference numerals in this figure as well as in the following figures.
  • the illustrated embodiment of a rotor disk 2 is cylindrical, d. H. in plan view circular and circumferentially about the shaft 4, on which the rotor 2 is fixed, a plurality of permanent magnets 31 and 32 are arranged with alternating polarity in a respective identical distance to a center of the rotor disk 2.
  • a pair of adjacent permanent magnets 31, 32 thus each have a north pole and a south pole, which point in the direction of one of the stator disks 1.
  • the permanent magnets 31, 32 may also be arranged at different distances from the center of the rotor disk 2.
  • a stator disk 1 with the winding 7 of the electrically conductive wire is shown in plan view in FIG.
  • the stator 1 is also cylindrical, so circular in plan view.
  • the winding 7 is applied in meandering around the center of the disc around.
  • the meander forms a plurality of loops 10, each consisting of two in the radial direction, ie in the same direction as a radius extending from a center to an edge of the disc, extending portions 8 and one in the tangential direction, ie in an orthogonal to the radius the disc extending direction or in the direction of the circumference, extending section 9.
  • a single wire for forming the winding 7 is respectively arranged on a first surface 33 or side of the stator disk 1 and spatially separated from the winding 7 on a second surface 34, which is the first surface. 33 is opposite.
  • the first surface 33 and the second surface 34 are perpendicular to a rotation axis of the rotor 2.
  • a solid line of the winding 7 indicates the winding 7 on a side facing a viewer, while a dashed line indicates the winding 7 on a side facing away from the viewer features.
  • the windings 7 arranged on the different sides of the stator disk 1 complement each other in such a way that closed loops are formed on the loops 10, at which a magnetic field differs from one loop to the next
  • stator disks 1 of the electric machine shown in FIG. 1 and all the rotor disks 2 can each be constructed identically, but at least one of the stator disks 1 and / or one of the rotor disks 2 have a different configuration from the other disks.
  • the stator disk 1 and / or rotor disk 2 is preferably formed from a plastic or other non-ferromagnetic material.
  • stator disk 1 shows a further embodiment of the stator disk 1, in which the stator disk 1 has openings 12, at which the wire forming the winding 7 is guided from one side of the stator disk 1 to the other side of the stator disk 1.
  • the winding 7 is applied periodically and the openings 12 are arranged periodically, in the illustrated embodiment, always centered on one of the center of the
  • Stator 1 a maximum distance having tangential section 9.
  • Figure 4 is a schematic representation in which the winding 7 has been drawn only in regions, but of course in turn is formed circumferentially. In other embodiments, however, the apertures 12 can also be arranged at other positions, for example centrally on a tangential section 9 or a minimum distance at a radial portion 8.
  • At least one of the windings 7 can rotate around at least one of the loops 10 of the meander several times, so that the side of the loop already has one side
  • Stator 1 forms a loop.
  • the winding 7 is completely circumferential in this embodiment, but only partially shown for reasons of clarity. In a preferred manner, all loops 10 of the meander are passed through several times, wherein the winding 7 forming electrical wire see after a loop 10 each side changes.
  • the windings 7 on the two sides of the stator disc 1 can also be arranged offset to one another, as shown in Figure 6 in a figure 3 corresponding plan view.
  • the sections 8 arranged in the radial direction of the one winding 7 are not designed to be superimposed with the corresponding sections 8 of the other winding 7, but the sections arranged in the tangential direction are at least partially superimposed.
  • a difference in the phase angle of 90 ° between arranged on different surfaces of the stator 1 windings 7 can be achieved, so that always acts a torque and a start of the machine is facilitated.
  • the winding 7 is not drawn completely circumferential for reasons of easier overview.
  • the winding 7 forming wire is preferably purely mechanically
  • FIG. 7 is a schematic representation, the recess and the winding are formed in the embodiment shown in reality completely circumferentially on the stator 1.
  • the wire itself is typically a flat wire of anodized aluminum, whose broader side is guided parallel to the shaft 4.
  • a kink-free winding can be realized on any sides of the stator 1.
  • the rotor disk 2 can also be constructed modularly from a plurality of individual, flush-fit disks, as shown in Figure 8 in plan view.
  • the permanent magnets 31 and 32 also do not have to have an identical shape but can be circular, rectangular, in particular square or circular in plan view. In this case, the permanent magnets 31 and 32 are mounted in the stator disk 1 in such a way that their surface is flush with the surface of the stator disk 1, but in other exemplary embodiments they can also project out of the stator disk 1.
  • FIG. 9 shows a rotor disk 2 with a respective winding 7 on different sides to illustrate the principle of operation.
  • Each of the windings 7 has only two loops 10, which are traversed by an electric current in the directions indicated by the arrows. Since a current flow in the radial sections 8 in each of the two windings 7 is rectified, a torque forms in each of the loops, which can interact with the permanent magnets 31, 32 and a torque density is increased with reduced use of material and corresponding weight savings.
  • FIGS. 10 to 12 show again different configurations of the winding 7 in a schematic plan view.
  • each loop 10 is wrapped several times by the wire, which is particularly easy with the already described flat wire, before the wire is passed through an opening 12 to another side of the respective stator 1.
  • the windings 7 are meander-shaped and offset by 180 ° from one another on different sides of the stator disk 1. Even if the wire used is usually coated with an electrically insulating layer, so-called, radially pointing portions 8 of the wire are spaced apart from each other, so not in direct contact.
  • FIGS. 13 and 14 show a periodic arrangement of the windings 7 on different sides of the stator disk 1, in which case a change of the wire from one side to the next occurs at the openings 12.
  • FIGS. 13 and 14 a part of the electrically conductive wire forming the winding 7 is shown in plan view in different relative positions to one of the permanent magnets 32. While in FIG. 13 the wire is located centrally above the permanent magnet 32, the permanent magnet 31, 32 in FIG. 14 is no longer covered by the wire.
  • the control unit 13 may be set such that in the situation shown in FIG. 13, in which a current induced in the wire is maximum, it does not allow electrical current to flow in the wire, whereas in moving the wire to the position shown in FIG increases the current flow until it reaches its maximum at the position shown in FIG.
  • Figure 15 shows in a perspective view of the stator 1 with the two surfaces 34 and 35 and a winding body 35, on which the winding is introduced.
  • the winding body 35 is a main body of the stator disk 1, in the recesses 11 for receiving the winding 7 are introduced.
  • FIG. 16 shows a sectional view of the disk of the stator 1, in which a flat wire as a winding 7 is applied in recesses 11. Through an opening 7, the flat wire is guided from one of the surfaces 33 to the other of the surfaces 34. A cross-sectional longer side of the flat wire is in this case arranged parallel to a longitudinal axis or a rotation axis of the electric machine.
  • Figure 17 shows in a perspective view schematically without a corresponding disc, the winding 7, which in the present case of three
  • Wire packets 7a, 7b and 7c is formed, which are intertwined.
  • the winding 7 is circular and can be applied to a disc of the stator 1.
  • the three wire packages 7a, 7b and 7c can in turn be formed as packages of flat wire or a plurality of flat wires and always run alternately in their tangential portions of a one
  • each of the wire packages 7a, 7b and 7c may be arranged in sections on different sides of the disk of the stator 1. By using three wire packages 7a, 7b and 7c, a three-phase drive can be realized.
  • the radial sections of the respective wire are alternately on one side, for example, a rear side facing away from the observer as surface 35 of FIG. 17,
  • each of the sections is always arranged alternately always on one side and at the radial sections no side change.
  • the midpoint-distant section 9a always runs from the front side to the rear side, while the middle point-proximal section 9b runs from the rear side to the front side.
  • each of the wire packs 7a, 7b and 7c is arranged such that a midpoint distant portion 9a spans, on its course from the front to the rear, exactly one rearward radial portion of the second wire and one forward portion of the third wire.
  • the near-center portion 9b also covers exactly a rear-side radial portion 8 of the second wire and a front-side radial portion 8 of the third wire as it extends from the back to the front.
  • the center point-proximal portion 9b is guided from the rear side 35 to the front side 34, disposed between a radial portion of the wire package 7a extending on the front side and a radial portion of the wire package 7c extending on the back side.
  • the path of the wire bundle 7b is from the front to the rear, wherein the opening 12 of the wire bundle 7b is adjoined by the front-side radial section 8 of the wire bundle 7c and the rear-side radial section 8 of the wire bundle 7a ,
  • the respective breakthrough 12 lies in the middle between the two wires.
  • FIG. 19 shows a side view of the course of the reproduced in Figures 17 and 18 wire packages 7a, 7b and 7c.
  • the course from the lower front side in this illustration to the rear side of the midpoint-distant section 9a is better illustrated.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Windings For Motors And Generators (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)

Abstract

La présente invention concerne une machine électrique comprenant au moins un stator (1) en forme de disque pourvu d'au moins un enroulement (7) d'un fil métallique électroconducteur et au moins un rotor (2) pouvant être tourné par rapport au stator (1), pourvu d'un premier aimant permanent (31) et d'au moins un deuxième aimant permanent (32), qui sont disposés de telle manière qu'un pôle nord (N) du premier aimant permanent (31) et un pôle sud (S) du deuxième aimant permanent (32) pointent en direction du stator (1). L'enroulement (7) est disposé de manière radialement périphérique sous une forme sinueuse avec des sections (8) disposées respectivement en alternance dans une direction radiale et des sections (9) disposées dans une direction tangentielle sur le stator (1) en forme de disque de telle manière que des boucles (10) de l'enroulement (7) disposées sur deux surfaces se faisant face du stator (1) en forme de disque sont guidées de manière juxtaposée au moins par endroits seulement dans ses sections (8) disposées dans une direction radiale ou seulement par endroits dans ses sections (9) disposées dans une direction tangentielle. L'enroulement (7) est disposé en alternance sur une des deux surfaces (33, 34) du stator (1) en forme de disque ou respectivement un enroulement (7) du fil métallique est disposé sur chacune des surfaces (33, 34) du stator (1) en forme de disque.
EP18711516.7A 2017-03-13 2018-03-12 Machine électrique Withdrawn EP3596811A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017204072.6A DE102017204072A1 (de) 2017-03-13 2017-03-13 Elektrische Maschine
PCT/EP2018/056092 WO2018166977A1 (fr) 2017-03-13 2018-03-12 Machine électrique

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EP3596811A1 true EP3596811A1 (fr) 2020-01-22

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US (1) US20200227991A1 (fr)
EP (1) EP3596811A1 (fr)
JP (1) JP2020510400A (fr)
KR (1) KR20200011410A (fr)
CN (1) CN110915112A (fr)
DE (1) DE102017204072A1 (fr)
WO (1) WO2018166977A1 (fr)

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PL3813238T3 (pl) 2019-10-25 2022-03-14 Vaionic Technologies GmbH Moduł cewki do maszyny elektrycznej
DE102019216847A1 (de) * 2019-10-31 2021-05-06 Robert Bosch Gmbh Axialflussmaschine für ein elektrisches Bearbeitungsgerät sowie elektrisches Bearbeitungsgerät mit einer Axialflussmaschine
DE102020216121A1 (de) 2020-12-17 2022-06-23 Zf Friedrichshafen Ag Scheibenläufermotor, insbesondere für ein Kraftfahrzeug
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Also Published As

Publication number Publication date
JP2020510400A (ja) 2020-04-02
US20200227991A1 (en) 2020-07-16
WO2018166977A1 (fr) 2018-09-20
KR20200011410A (ko) 2020-02-03
DE102017204072A1 (de) 2018-09-13
CN110915112A (zh) 2020-03-24

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