EP3295540A1 - Paketsystem einer elektrischen maschine, elektrische maschine und verfahren zur herstellung des paketsystems - Google Patents
Paketsystem einer elektrischen maschine, elektrische maschine und verfahren zur herstellung des paketsystemsInfo
- Publication number
- EP3295540A1 EP3295540A1 EP17708267.4A EP17708267A EP3295540A1 EP 3295540 A1 EP3295540 A1 EP 3295540A1 EP 17708267 A EP17708267 A EP 17708267A EP 3295540 A1 EP3295540 A1 EP 3295540A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fiber material
- magnetic
- fibers
- fiber
- package system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/02—Details of the magnetic circuit characterised by the magnetic material
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/34—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites
- H01F1/36—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites in the form of particles
- H01F1/37—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites in the form of particles in a bonding agent
Definitions
- the present invention relates to a package system of an electric machine, e.g. a motor, in particular an electric motor, or a transformer, as well as an electric machine with such a package system and a method for producing the package system.
- an electric machine e.g. a motor, in particular an electric motor, or a transformer
- a rotor for a modular permanent magnet machine which consists of a laminated laminated core of different sheets.
- the sheets recesses are formed, which are positioned one above the other in Rebellion ⁇ PelN of the sheets that receiving spaces for the permanent magnets are formed.
- the object of the present invention is to provide an improved package system for an electrical machine. According to the invention this object is 13 ge ⁇ dissolved by a package system with the features of patent claim 1, an electrical Maschi ⁇ ne having the features of claim 11 and / or by a method with the features of patent claim.
- a package system for an electrical machine in particular a motor or transformer, the package system comprising at least one magnetic fiber material provided with electrical insulation.
- the of the present invention is based recognizes ⁇ nis / idea is well a magnetic fiber material ⁇ set, which is inexpensive to manufacture, as example ⁇ as iron wool, which has hitherto been used as an abrasive, and the fibers with an additional electrical insulation to Mistake. This is also easy and cost-effective manner, such as by phosphatizing, embedded in plastic or placing an electrically insulating layer between two layers of fiber material, etc ..
- the magnetic fiber material can when it is embedded or in art ⁇ material as an electrical insulation impregnated after curing of the Plastic taken from the receiving mold or optionally also very easy if needed in any desired form, for example, pressed or compressed ⁇ the.
- the female mold preferably has the final shape of the desired package ⁇ ge system.
- an electrically insulating layer for example paper layer, etc., provided between we ⁇ tendonss two formed from the magnetic fiber material layers and / or the fibers of the fibrous material are provided with an electrically insulating coating, e.g. a nanoceramic or phosphating coating, etc.
- the electrically insulating coating of the fibers of the fibrous material is a chemical coating, such as a formed by phospha ⁇ animals of the fibers or other layer such as a layer of a nano-ceramic.
- a layer can be realized by passing the material through a magnetic fiber, respectively geeig ⁇ scribed phosphating bath or another coating process such as nano ceramic coating in a continuous process.
- Beschich ⁇ processing is used to avoid eddy currents.
- the electrically insulating coating consists of plastic with which the fiber material is impregnated and / or in which the fiber material is embedded.
- the fiber material can already be embedded in a plastic pellet and conveyed together with it in an extruder, wherein the plastic is liquefied before the whole is sprayed as a finished injection molding material in the receiving form, for example, for a stator or rotor.
- the extruder can independently pure
- Plastic pellets are fed, which have no additional ⁇ bedded fiber material.
- the fiber material is instead supplied to the extruder separately and mixed therein with the softened or liquefied plastics pellets, be ⁇ ⁇ is injected before the mixture into the associated receiving Forme.
- the electrically insulating layer which two layers of fibers formed from the fiber material is provided between the Wenig ⁇ least, a paper layer, a plastic layer, a lacquer layer, a paperboard layer and / or a ceramic ⁇ is layer, in particular a Ferritkeramik harsh.
- the paint can, for example, on the associated fiber layer be applied by means of a doctor blade or be ⁇ sprayed through a nozzle, etc.
- At least one para-magnetic layer and / or at least ei ⁇ ne diamagnetic layer between at least two layers is provided from fibrous material.
- the fibers of the layers of fiber material may be both to the electrically isolie ⁇ leaders coating, for example ramikbe Anlagenung a phosphating or Nanoke-, or alternatively be designed without this electrically insulating coating.
- the electrically insulating layer may be provided between the two layers of fiber material, for example a paper layer, lacquer layer, etc.
- the magnetic fiber material is a soft magnetic fiber material and / or a fiber material made of an electric sheet.
- the fibrous material can be any fiber length or lengths aufwei ⁇ sen, including long fibers and / or short fibers, etc ..
- Such a soft magnetic material fiber is as example ⁇ especially for the production of rotors, stators and transformer cores.
- the magnetic fiber material is, for example, a fiber braid, for example woven braid, and / or a fiber powder made from comminuted or chopped fibers.
- a fiber powder can be pressed or compressed particularly easily and in a dense package system.
- the alignment of magnetic field lines in the mold is easily realized by applying a magnetic field and possibly vibrating the mold before the pressing process begins.
- the package system includes at least a functional element and / or at least one laminate stack of at least two sheets with a rule ⁇ Between the seats arranged electrically insulating layer. By the functional element or sheet metal package so other radio ⁇ functionalities can be integrated into the packaging system.
- the functional element can be an attachment point, a conductor track, a tempering line, preferably a cooling line, a bearing, a sensor element, an actuator element, an electronic component, a functional element made of a magnetic field-dependent oriented material, in particular a magnetic shape memory alloy Magnet, in particular be permanent magnet.
- a functional element can be easily embedded in the fiber material and then the pressing of the fiber material carried ⁇ who.
- the functional element and / or the laminated core may be embedded in the magnetic fibrous material prior to compression or compression, or may be secured in an associated aperture or depression in the package system subsequent to compression or compression.
- the attachment of the at least one functional element and / or laminated core in the zugeord ⁇ Neten opening or depression in the package system can be done for example by pressing and / or gluing.
- the magnetic material fiber can be uniformly compressed or we ⁇ ilias two portions of the fiber material be more or less compressed.
- the fiber material may comprise all or Be ⁇ rich sectionally same compression or at least two regions which have different degrees of compression.
- the compression of the fiber material takes place in a direction which acts ⁇ be an anisotropic magnetic behavior of the fiber material.
- the fibers of the magnetic fiber material are arranged aligned such that the fibers as possible follow the theoretical Ver ⁇ course of the magnetic field lines. In this way, an optimal magnetic flux profile can be achieved with an optimal material utilization.
- any other orientation of the fibers is possible depending on the function and purpose.
- the magnetic material fiber an additional soft magnetic ⁇ ULTRASONIC powder material, such as SMC (Soft Magnetic Composites) - powder on.
- SMC Soft Magnetic Composites
- the electromagnetic properties of the package system can be additionally optimized, wherein only a small amount of such a powder material is he ⁇ required.
- SMC powder and Faserpul ⁇ ver can be used.
- iron powder or fiber powder with or without insulating coating is used.
- a powder of soft magnetic ferrites such as MnZn or NiZn may be introduced between the fibers.
- the fiber material is compressed or pressed, for example, such that it has a defined density, for example the highest possible density.
- an electrically insulating layer between at least two layers formed from the magnetic fiber material is provided as electrical insulation and / or the fibers of the fiber material are provided with an electrically insulating coating as electrical insulation.
- the fibers may for example be chemically coated, for example by Phospha ⁇ tion of the fibers, coating the fibers with a Nanokera- mik etc., in addition or alternatively, an electrical insulation of the fiber material by impregnating the Faserma ⁇ material and its fibers Plastic and / or by embedding the fiber material and its fibers in plastic he testifies ⁇ .
- the electrically insulating layer may comprise a paper layer, a
- the plastic layer may be provided for example as an art ⁇ material film and the lacquer stratification be applied by spraying or by means of a doctor blade, etc., on the layer of the fiber material.
- the coating of the Fa ⁇ fibers of the package material with a ferritkeramischen insulating layer has the advantage that a very high magnetic conductivity achieved avoid eddy currents the advantage can be, because ferrite ceramics are magnetically conductive but
- the impregnation of the magnetic fiber material with plastic takes place, for example, by feeding the plastic in a soft or liquid form, in particular by means of an extruder.
- the soft or liquid plastic is supplied, for example, when the magnetic fiber material is provided in the receiving mold.
- the embedding of the fiber material in the magnetic material by feeding plastic pellets contained therein magneti ⁇ rule fibers takes place in an extruder.
- the extruder the extruder
- Plastic pellets made soft or liquid with the magnetic fiber material additionally contained therein, so that the soft or liquid material can be introduced or injected into the receiving mold.
- the embedding of the magnetic fiber material in plastic takes place by feeding on the one hand pure plastic pellets to an extruder and on the other hand feeding fiber material to the extruder.
- the mixed in the soft or liquid plastic of the extruder magnetic fiber material can be introduced or injected together ⁇ men with the soft or liquid plastic in the receiving mold.
- the fibers of the fiber material can be provided with an electrically insulating coating, in particular a chemical coating and / or a nanoceramic coating. Furthermore, at least one paramagnetic layer and / or at least one diamagnetic layer can be arranged between two layers formed from the fiber material.
- the fibers of the fiber material can have an electrically insulating coating, eg phosphating, or no additional electrically insulating coating.
- a further electrically insulating layer for example a paper layer, varnish, a plastic layer, etc. vorgese ⁇ hen.
- the provision of a paramagnetic and / or diamagnetic layer or the coating of the fibers of the fiber material with a paramagnetic and / or diamagnetic layer has the advantage that the highest possible magnetic barrier between the individual fibers or the layers formed from the fiber material can be achieved For example, can be used advantageously in synchronous reluctance motors.
- the package system is for example a rotor and / or a stator of an electric motor or a transformer core of a transformer.
- Partial section of a motor package which shows the Faseraus ⁇ direction along the field lines, in this case, for example, long fibers, short fibers and fiber powder are combined or mixed;
- FIG. 6 shows a section AA of the Motorpa ⁇ kets shown in Fig. 5 in an enlarged view
- Figure 7 is a section of an example of a layer ⁇ wise construction of a pact system of the invention.
- 8 shows a further detail of an example of a layered structure of a pincushion system according to the invention.
- the package system 1 can be designed as a motor-packet system, for example as a rotor or as a stator or as a transformer packet system, for example as a transformer core, etc. of an electrical machine, such as an electric motor or a transformer, etc., depending on the function and purpose.
- the package system 1 according to the invention provides a cost- effective solution.
- the package system according to the invention also enables more complex three-dimensional package designs.
- the package system 1 according to the invention can close the gap between the solution of stamped sheets and packages of said powder metallurgical material in the middle and lower frequency range.
- the package system 1 comprises a fiber material of magnetic fibers, preferably soft magnetic fibers.
- Soft magnetic materials are characterized by an easy magnetization, which is expressed in a small coercive field strength.
- soft ⁇ magnetic ferrites is as easy as possible (re) Magne ⁇ sizeability, which corresponds to a narrow hysteresis curve.
- the soft magnetic fibers can be produced, for example, from soft magnetic materials, such as, for example, a suitable alloy based on iron, nickel and / or cobalt, or a soft ferrite, such as, for example, nickel.
- a soft ferrite such as, for example, nickel.
- ckel-zinc ferrite IZN for example in the composition Ni a Zn (ia) Fe2 ⁇ 04, or a manganese-zinc ferrite, MnZn, eg in the composition to ⁇ Mn a Zn (ia) Fe2Ü4, etc .
- the invention is not limited to the aforementioned examples of soft magnetic fibers.
- any soft magnetic material in particular ⁇ sondere soft magnetic metal or soft magnetic metal ⁇ alloy, which can be provided by means of a phosphating, etc., with an electrically insulating coating, for example.
- all base materials for the fiber materials can be used, which in the known electrical steel grades such. B. M 800 or M 530, M 330, etc. find use.
- the magnetic fibers may be present as a braiding, for example woven mesh, or as loose fibers in the form of a fiber powder and are provided with an additional electrically insulating coating.
- the fibrous powder is, for example, chopped with an additional electrical insulation provided fibers or small shredded fiber material, for example a small chopped fiber mesh, such as a minced fiber entangled mesh or a chopped fiber mat, etc., wherein the fibers of the fiber mesh also with an additional electrical ⁇ rule isolation before chopping or chopping.
- Such fiber materials are inexpensive to produce, such as the so-called.
- Steel or iron wool which is also referred to as Wirrgeflecht, and as a grinding or
- Abrasive material is available in hardware stores or drugstores. Such a metal wool is inexpensive to manufacture z. B. in a peeling process.
- a woven mesh of magnetic fibers in particular soft magnetic fibers, can be provided with an electrically insulating Be provided coating or an insulating material.
- the individual fibers can be coated by an insulating phospha ⁇ orientation.
- Phosphating is a process in surface technology in which a so-called conversion layer of firmly adhering metal phosphates is formed by chemical reactions of metallic surfaces with aqueous phosphate solutions. In the phosphating process, a pickling attack on the base material takes place, in which metal cations go into solution with evolution of hydrogen. Subsequently, the layer formation takes place by precipitation of sparingly soluble phosphates.
- these may be, for example, iron, zinc, or manganese phosphate layers, etc.
- the metal cations involved in layer formation originate from the base material, while the metal cations from the phosphate solution are not involved in the layer structure. In contrast, it follows ⁇ in the layer-forming phosphating the layer structure by metal cations from the phosphate solution.
- metal cations may be involved from the base material.
- the layer thickness produced by phosphating can range from a few hundred nanometers, for example in the iron phosphating up to two micrometers and more, for example in a zinc and manganese phosphating.
- the magnetic and in particular soft magnetic fibers are passed through one or more successive suitable chemical baths or phosphating baths to produce the electrically insulating phosphate layer on the fibers.
- the fibers can also be provided with an electrically insulating coating of a nanoceramic or provided with another suitable electrically insulating coating.
- insulating nanoceramic coatings may also consist of ferrite ceramics which have magnetically positive conductive properties but are electrically insulating.
- the invention is not limited to chemical coatings, e.g. by phosphating, nor on nano- ceramic coatings, e.g. a ferrite ceramic, etc., limited as an electrically insulating coating.
- a fiber material with a form of electrically insulating coating e.g. phosphating the fiber material to provide a portion of the fiber material with another electrically insulating coating e.g. a nanoceramics, depending on function and purpose.
- the fibers as base material can be produced in thicknesses down to, for example, a few ym in mass production.
- the fibers are now obtained by a peeling process from a wire and are classified as varieties no. 0000, 000, 00, 0, 1, 2, 3, 4, 5, where the variety no. 0000 represents the finest fiber. If necessary, however, other shades, especially finer fibers can in the future by further development of the manufacturing process, produces the ⁇ , so a coordinated depending on the application Faserrohmate ⁇ rial can be produced.
- metal fibers of metal or a metal alloy can be produced, for example, as a rolled up mat product, which has a good cohesion due to the long fiberiness of its fibers. In the case of such fiber mats, for example, 80% of the fibers have a length of greater than 20 cm and accordingly have a good cohesion due to their long-fiber character.
- soft magnetic iron species are preferably used.
- the invention is not limited to annealing as an example of an intermediate process. Any intermediate process suitable for increasing the soft magnetic properties of the fibers may be provided.
- a fiber material 4 of magnetic fibers preferably soft magnetic fibers is provided wherein the fibers having a provided additional electrical insulation.
- the magnetic fibers for example in the form of one or more pieces of fiber mat, are provided with an additional electrically insulating coating, e.g. a phosphating coating or the like provided.
- an additional electrically insulating coating e.g. a phosphating coating or the like provided.
- a plurality Fasermattenstü ⁇ blocks of iron wool or a mesh of iron fibers for example, comparable in which the fibers of the fiber mat pieces are provided with an additional phosphating coating for electrical insulation.
- the invention is not limited to phosphating the fibers for electrical insulation nor iron wool or iron fibers as magnetic fibers. It can be each provided at ⁇ particular magnetic fiber, especially soft magnetic fiber, as well as any suitable electrically insulating coating on the fibers.
- the fiber mat pieces 4 are accommodated in a housing ⁇ form.
- the fiber mat pieces 4 can be additionally aligned in the receiving form, for example, in such a way that they support the magnetic flux. This means that the fibers follow the theoretical course of the magnetic field lines as far as possible.
- a fiber powder from crushed and provided with an electrically insulating coating fibers such as iron fibers used and introduced into the receiving mold or poured and then compressed.
- an electrically insulating coating fibers such as iron fibers used and introduced into the receiving mold or poured and then compressed.
- an electrically insulating coating fibers such as iron fibers used and introduced into the receiving mold or poured and then compressed.
- Fig. 1 can optionally also in addition to the one or more fiber mats also one or more other components or functional elements are arranged in the receiving mold 7 and then pressed together with the or the fiber mat pieces.
- components or functional elements 5 Fixed To ⁇ branching points, strip conductors, for example cooling lines, storage, sensor elements, shafts, actuator elements or functional elements of a magnetic-field-dependent oriented material, such as a magnetic shape memory alloy (german, magentic shape memory alloys MSMA), or Magnets 6, insbeson ⁇ permanent magnets, etc. used and integrated into the package of magnetic fibers. In this way, additional functions can be realized in the package or be inte ⁇ grated.
- the invention is not limited to the mentioned examples of ⁇ components or functional elements. Any suitable component or suitable functional element can be pressed in with it to form the finished package system.
- the fiber mat pieces 4 with optionally be inserted therein to ⁇ sharmlichen functional elements 5, such as permanent magnets, pressed to form a package or compressed.
- ⁇ sharmlichen functional elements 5 such as permanent magnets
- the pressing or compressing the fiber mat pieces 4 with the inserted therein permanent magnet 6 as an example of the functional elements is implemented in the embodiment in Fig. 1 by a stamp, which the fiber mat pieces kom ⁇ primed or pressed together with a sufficiently high pressure to the ferti ⁇ gen package system.
- the finished package system 1 is shown in Fig. 2 following the pressing or compressing operation.
- Thejansele ⁇ elements 5 in the embodiment in the form of Permanentmag ⁇ Neten 6 itself are not, for example, additionally compressed, but only the fiber material, here the fiber mats 4. In principle, it is also conceivable, depending on the functional element and its function and purpose, this also with compress.
- the shape of the receiving die 7 and the punch 8 can be formed ent ⁇ speaking, so that even more complex or more complex three-dimensional shapes are produced with, for example, projections and / or depressions, etc., depending on the function and application.
- the phosphating coatings and / or, if appropriate, nanoceramic coatings or, if appropriate, also other types of coatings are to be regarded as slip coatings.
- the fibers can be oriented so that they support the magnetic flux, which means that the fibers follow the theoretical course of the magnetic field lines as far as possible.
- the physical properties of the package system according to the invention can be adjusted. For example, by using coarser fibers, higher porosity and lighter packages with higher saturation can be achieved.
- fibers in the known qualities such as electrical sheets and strips, eg M330, M800, etc.
- electrical sheets are, for example, cold-rolled non-grain oriented electrical sheets and strips in final annealed condition according to DIN EN 10106 or grain oriented electrical sheets and strips in final annealed To ⁇ stand in accordance with DIN EN 10107.
- the basic material al and the base material quality of the fibers are varied depending on the function and purpose, as well as in the electrical sheets used today such. M800, M530 or M330 etc .. Thus, comparable to the sheets change the properties and costs.
- the insulating coating of the fibers loading can be varied and thereby in a cost opti mized ⁇ .
- iron phosphatings, nanoceramic coatings and / or ferrite-ceramic coatings can be selected and thus the magnetic properties as well as the costs and the process properties can be optimized.
- Fig. 3 the package system 1 according to the invention after removal from the receiving mold is shown following the pressing or compression process.
- the package system 1 is, as previously, for example, a rotor 2 of an electric machine 1, and arranged on an associated shaft 9 of the electric machine 1.
- the illustration in Fig. 3 is also purely schematic and greatly simplified. Additionally or alternatively to the magnet or magnets, another component or functional element in the packet ⁇ system 1 can also at least be pressed, for example a shaft, a bearing, etc ..
- Höganäs Somaloy® be provided the individual powder particles with ei ⁇ ner additional electrical insulation and can be deformed in a pressing process to an inventive packaging system. Also, the isolated fibers can be further processed into a fiber powder and packages are made from this material. This long fibers and Fiber powder are mixed together and combined and optionally additionally a fiber powder, an SMC powder, and / or a ferritic powder are mixed under the long and short fibers, as shown in the section AA in fol ⁇ gender Fig. 6.
- SMC powder, ferritic powder and / or fiber powder can additionally increase the density of the fiber material provided with additional electrical insulation of the fibers, for example in the form of a fiber mat, a Fasergewirrs and / or fiber ⁇ powder and thus once again Opti ⁇ bring or improve the electromagnetic properties of the package system according to the invention. Since even small amounts of this SMC powder are sufficient as an additive to the Faserma ⁇ material, the use of this SMC powder does not result in a significant increase in the overall price of the package system according to the invention. As previously stated, ferritic powder can also optionally be added additionally or alternatively.
- a further embodiment of the invention that can be combined with one or more ⁇ ren laminated cores with an additional electrical insulation of the fibers provided fiber material, eg in the form of a fiber mat, egg ⁇ nes fiber tangle and / or fiber powder, as described previously.
- sheets provided with an insulating layer are combined to form a laminated core.
- the laminated core can be integrated with the fiber material or in the fiber material, in particular before or after the compression of the fiber material. In this case, a per ⁇ schreibs laminated core in recesses of the fiber materialLe- pressed and / or glued, etc ...
- the package system according to the invention has the advantage that it permits ei ⁇ ne design freedom in all geometric dimensions and in particular can be produced with more complicated three-dimensional shapes. Furthermore, punching waste can be avoided by compressing fiber mats. Furthermore, the fiber orientation and the fiber density can be adapted very easily to the theoretical known field line course within the package system, whereby optimal magnetic flux curves with optimum material utilization can be realized. An example of fiber alignment along field lines in a motor package is shown in FIG. 5 below.
- the density By compressing or compressing the fiber material, it is possible to adjust the density and thus optimize the density with regard to the flux concentration in such a way that no saturation occurs with minimal use of material.
- the density can also be adjusted, for example, selectively in regions of the fiber mate rials ⁇ of the packaging system according to degree of saturation. By the possibility of providing optimal material utilization , furthermore, a weight advantage can be achieved.
- inexpensive base materials such as iron wool from a soft magnetic Eisenlegie ⁇ tion, coating methods and processing technologies can be used.
- stator and rotor in different qualities to use for example in respect of the material of the insulating coating, etc., and different pressings, and to press for example, once fiber mats once fiber powder to produ without punching waste ⁇ grace.
- very cost-effective and targeted kos ⁇ tenoptimATOR motors, etc. can be produced.
- SMC Soft Magnetic Composites
- said SMC powder material may further include a powder material made of iron (Fe), silicon (Si) and chromium (Cr), which has no organic binder, and has been developed by Tayio Yuden be used.
- an at least partially set the porosity of the compressed fiber material of the erfindungsge ⁇ MAESSEN package system cooling by flowing through a ⁇ Me dium, such as air, water, oil, etc. can be achieved.
- FIG. 4 shows an example of a compact 10 made of a compressed fiber material, here steel fibers.
- the compact has a high porosity.
- a preferably high density is usually sought.
- Fig. 5 is a highly simplified, not drawn to scale and purely schematic partial section of a motor packet is shown as an egg ⁇ nem example of an inventive package system 1.
- the motor package in this case has a fiber material 4 from Magneti ⁇ 's fibers 11, wherein the fibers 11 are provided with an additional electrical insulation, as previously described with reference to FIGS. 1-4.
- the fibers 11 in the embodiment are e.g. Long fibers and short fibers, wherein the fibers are additionally mixed with fiber powder with its fiber powder particles.
- the invention is not limited to long fibers, short fibers and fiber powder nor to a combination thereof.
- any suitable fiber length of fibers may be used and optionally additionally combined with fibers of at least one other fiber length, e.g. be mixed.
- the addition of fiber powder or other powder described above is also optional.
- the fiber orientation of the fibers 11 of the fiber material 4 is along the field lines.
- the fiber alignment can be achieved, for example, by applying a suitable magnetic field applied to the fiber material 4 in the recording ⁇ form, for example, before pressing.
- the receiving form may additionally be vibrated to further aid alignment of the fibers along the field lines.
- FIG. 6 shows a section AA of the motor package shown in FIG. 5 in an enlarged view.
- the mixture of long fibers 12, short fibers 13 and fiber powder with its fiber powder particles 14 is shown.
- the invention as set forth above is not limited to this particular Ausgestal ⁇ tung.
- the 5 and 6 motor package shown is in Fig. Also be prepared as an example of an inventive package system 1 such that a Fa ⁇ sermaterial is used, the first by with no zuslegili ⁇ chen electrically insulating coating such as a coating Phosphating or the like.
- a fiber powder is used, which is, for example, chopped fibers or finely chopped fiber material, such as a chopped fiber braid, such as a chopped fiber braid or a chopped fiber mat, etc., of magnetic fibers, preferably soft magnetic fibers.
- the fiber material optionally at least one zusharm ⁇ pending fiber powder, a SMC powder, and / or a ferritic Powder, etc. are mixed in and thereby increased, for example, if necessary, the density.
- the invention is not limited to the addition of fiber powder, SMC powder, powder of iron (Fe), silicon (Si) and chromium (Cr) without organic binder and / or ferritic powder; it may be any other powder material suitable for the package system be mixed with the fiber material, depending on function and a ⁇ intended purpose.
- the fibrous material may further comprise any other length of fibers or combi nation ⁇ of fiber lengths, depending on their function and purpose.
- the fiber material which is initially provided with no own electrically insulating coating, is given in a next step in a receiving mold, as shown by way of example in Fig. 1, wherein in the receiving form ⁇ optionally additionally provided one or more components or functional elements can be, as previously described with reference to the figures and are therefore not repeated.
- a liquid plastic is poured into the receiving mold, which penetrates into the fiber material and this penetrates and thereby surrounds or provides the fiber material with an electrically insulating coating.
- a suitable magnetic field can be applied to the fiber material penetrated or impregnated with the liquid plastic in order to achieve a fiber orientation of the fiber material along the field lines, as already shown by way of example with reference to FIG. 5.
- Gege ⁇ appropriate, the receiving die can thereby additionally be vibrated to further assist in alignment of the fiber material along the field lines.
- an additional pressing of the impregnated with the plastic fiber material is not essential and can be omitted. However, if required, an optional additional pressing of the impregnated with the plastic Fa ⁇ sermaterials done, depending on the function and purpose.
- the finished package system here for example a motor package, can be removed from the receiving mold.
- Plastic pellets with magnetic, in particular weichmagne ⁇ tables fibers are used, for example, plastic pellets ⁇ with such fibers having a fiber length of ⁇ example 20mm.
- the fibers contained in the plastic pellets themselves do not have their own electrical insulating coating, such as, for example, a phosphating coating. Instead, the plastic material of the plastic pellets forms an electrically insulating coating for the fibers contained in the plastic pellets.
- the invention is not limited to plastic pellets with fibers with egg ⁇ ner fiber length of 20mm. The fibers can be both shorter than 20mm and longer than 20mm.
- an extruder for example a Schneckenextru ⁇ the fed and plasticized or liquefied and added to ⁇ closing the softened or liquefied material in the receiving mold and cured.
- at least one additional fiber powder, an SMC powder, a powder material of iron (Fe), silicon (Si) and chromium (Cr) which has no organic binder, and / or a ferritic powder, etc. may be mixed in with the plastic pellets, and this increases the density, for example, if necessary.
- one or more components or functional elements, as described above with reference to the figures, may optionally additionally be provided in the receiving form.
- a suitable magnetic field can be applied either in addition to achieve a Fa ⁇ serauscardi the fibers of the plastic pellets along the field lines as already described with reference to Figure . 5 has been shown in ⁇ way of example.
- the recording form can additionally be vibrated to further assist the orientation of the fiber material along the field lines.
- Plastic pellets is not essential and can be omitted. In principle, however, if required, an additional pressing of the material received in the receiving mold from the plasticized or liquefied plastic pellets can take place, depending on the function and intended use.
- plastic pellets contained therein magnetic fibers in particular the soft magnetic fibers, and plastic pellets can fiber without such an extruder at ⁇ play
- a screw extruder fed and weichge ⁇ makes or liquefied.
- the extruder can then be inde ⁇ pending the fibrous material of magneti ⁇ rule fibers, in particular soft magnetic Fasern supplied from these consisting exclusively of plastic material plastic pellets.
- the fibrous material may, as described above, as a network, for example, random woven, we ⁇ iquess be made of fibers of a certain length, for example, long fibers, short fibers etc., and / or as loose fibers in the form of a fibrous powder and are fed to the extruder.
- the fiber material in this case has itself no first additional electrically iso ⁇ -regulating coating as it passes through the extruder and the supplied to the extruder liquefied or plasticized plastic material. Instead, the fiber material is mixed with the plastic material through the extruder and provided by the plastic material with electrical insulation. The soft or liquid plastic material with the fiber material received therein is received in a receiving form, as shown by way of example in FIG. 1.
- the plastic pellets may also optionally additionally we ⁇ ilias an additional fiber powder, a SMC powder, and / or a ferritic powder, etc. are mixed, and thereby, for example, if necessary increases the density of the ⁇ .
- ⁇ ipsase ⁇ elements are in the receiving form optionally additionally provided, as previously described with reference to the fi gures ⁇ .
- Softened at the softened or liquid in the receiving die set ⁇ made material from the through the extruder or liquefied plastic pellets and the underlying composite fiber material may be optionally additionally applied a geeigne ⁇ tes magnetic field in order to achieve a fiber orientation of the fibers of the fibrous material along the field lines as has already been shown with reference to FIG. 5 by way of example.
- the recording form can additionally be vibrated to further assist the orientation of the fiber material along the field lines.
- Plastic pellets and the fiber material contained therein is not essential and can be omitted. Basically, however, if necessary, also an additional pressing of the material received in the receiving mold from the plasticized or liquefied plastic pellets and the contained fiber material, depending on the function and purpose.
- the extruder for example a Schneckenextru ⁇ DERS possible to obtain a sprayable material made of plastic and fiber ⁇ material and so, for example, a gun-stator material, package material, or rotor material, etc. mergege ⁇ represents be.
- a gun-stator material, package material, or rotor material, etc. etc.
- the proportion of fiber material in the plastic material is, for example, 50% to 80%.
- the fiber material such as iron fibers or Koh ⁇ letatin can be used as soft magnetic fibers or any other soft magnetic material, in particular soft ⁇ magnetic metal or metal alloy.
- FIGS. 7 and 8 Furthermore, a detail of an example of a layered structure of a pact system 1 according to the invention is shown in FIGS. 7 and 8.
- the fiber material 4 As shown in the cutaway in Fig. 7 and 8, there are more pressed layers 15 of fiber material 4 vorgese ⁇ hen, wherein the fiber material 4, no additional electrically insulating coating as described above with respect to FIGS. 1- 6, having.
- the fiber material can 4 however, in the embodiment shown in Figs. 7 and 8 optionally have such an additional electrically insulating coating as described above, for example, generated by phosphating Be ⁇ coating, etc ..
- At least one electrically insulating layer 16 is alternately provided in FIGS. 7 and 8.
- This electrically insulating layer 16 can be ⁇ at least one paper layer, a plastic layer, a lacquer layer, a cardboard layer, a ceramic layer, in ⁇ example, a ferrite ceramic layer, etc. be.
- the OF INVENTION ⁇ -making is not limited to the examples of additional insulating layers.
- an electrically insulating layer 16 between two layers of fibers 15 at least one additional paramagnetic ⁇ tables 17 and / or diamagnetic layer may be provided 18th
- At least the fiber layers 15 in Figs. 7 and 8 may additionally be pressed if necessary.
- example ⁇ additionally pressed fiber layers 15, which alternate with each at least one electrically insulating layer 16, such as shown in Fig. 7 and 8, the electrically insulating layers 16 can be comparable to the electrically insulating Coatings of the fibers have different properties.
- three-dimensional package systems 1 can also be produced by joining operations, such as joining. Pressing and / or gluing, to be created. It is also very easy to use materials such as plastic, paint and / or paper as electrically insulating layers 15.
- Fig. 7 is at least ei ⁇ ner side of at least an electrically insulating layer 15 additionally a paramagnetic layer 17 and / or diamagnet ⁇ tical layer 18 is provided.
- the additional paramagnetic layer 17 is shown in FIG. 7 with a dashed line and the additional diamagnetic layer 18 indicated by a polka dot ⁇ th line.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Motors, Generators (AREA)
- Soft Magnetic Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016203739.0A DE102016203739A1 (de) | 2016-03-08 | 2016-03-08 | Paketsystem einer elektrischen Maschine, elektrische Maschine und Verfahren zur Herstellung des Paketsystems |
PCT/EP2017/054942 WO2017153257A1 (de) | 2016-03-08 | 2017-03-02 | Paketsystem einer elektrischen maschine, elektrische maschine und verfahren zur herstellung des paketsystems |
Publications (1)
Publication Number | Publication Date |
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EP3295540A1 true EP3295540A1 (de) | 2018-03-21 |
Family
ID=58192324
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP17708267.4A Withdrawn EP3295540A1 (de) | 2016-03-08 | 2017-03-02 | Paketsystem einer elektrischen maschine, elektrische maschine und verfahren zur herstellung des paketsystems |
Country Status (3)
Country | Link |
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EP (1) | EP3295540A1 (de) |
DE (1) | DE102016203739A1 (de) |
WO (1) | WO2017153257A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2019185395A1 (de) * | 2018-03-26 | 2019-10-03 | Siemens Aktiengesellschaft | Weichmagnetischer komposit-werkstoff, verwendungen dazu |
EP3547335A1 (de) * | 2018-03-26 | 2019-10-02 | Siemens Aktiengesellschaft | Weichmagnetischer komposit-werkstoff, verwendungen dazu |
DE102020109388A1 (de) | 2020-04-03 | 2021-10-07 | Daimler Ag | Statorzahn für eine Axialflussmaschine und Verfahren zur Herstellung |
EP3960334A1 (de) * | 2020-08-31 | 2022-03-02 | Siemens Aktiengesellschaft | Verfahren zur fertigung einer elektrischen maschine sowie anlage und fahrzeug |
CN113572328A (zh) * | 2021-08-19 | 2021-10-29 | 哈尔滨工业大学 | 一种用于加固电机结构的形状记忆绝缘垫条及其制备方法和应用 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE574096C (de) * | 1930-10-30 | 1933-04-08 | Ideal Werke Akt Ges Fuer Draht | Spulenkern |
DE872299C (de) * | 1951-10-03 | 1953-03-30 | Aloys Dr Wuestefeld | Verfahren zur Erzeugung von Phosphatzementschichten auf Werkstoffoberflaechen |
DE1921608U (de) * | 1964-11-25 | 1965-08-19 | Siemens Ag | Magnetischer nutverschlusskeil. |
US20130031774A1 (en) * | 2004-05-13 | 2013-02-07 | Integral Technologies, Inc. | Low cost electrical motor components manufactured from conductive loaded resin-based materials |
EP1812688B1 (de) * | 2004-11-12 | 2016-04-13 | Board of Trustees of Michigan State University | Impeller einer turbomaschine aus verbundwerkstoff und verfahren zur herstellung |
DE102005041676A1 (de) | 2005-09-01 | 2007-03-22 | Atb Technologies Gmbh | Blechpaketanordnung für eine elektrische Maschine sowie Rotor und Permanentmagnetmaschine |
DE102011102046A1 (de) * | 2011-05-19 | 2012-11-22 | Compact Dynamics Gmbh | Permanentmagneterregte elektrische Außenläufermaschine, Läufer für eine solche elektrische Maschine und Verfahren zu dessen Herstellung |
DE102011089417B4 (de) * | 2011-12-21 | 2017-05-04 | Siemens Aktiengesellschaft | Aktivteil für eine elektrische Maschine mit einer Verbindungsfaser |
ES2719426T3 (es) * | 2012-12-19 | 2019-07-10 | Leantec Motor Gmbh & Co Kg | Procedimiento para la fabricación de un rotor para un motor eléctrico |
BR112015025611A2 (pt) * | 2013-04-11 | 2017-07-18 | Siemens Ag | rotor para um motor de relutância, motor de relutância, veículo motorizado, e, método para fabricar um rotor |
GB2504216B (en) * | 2013-07-19 | 2015-01-07 | Williams Hybrid Power Ltd | Flywheels for energy storage and methods of manufacture thereof |
-
2016
- 2016-03-08 DE DE102016203739.0A patent/DE102016203739A1/de not_active Withdrawn
-
2017
- 2017-03-02 WO PCT/EP2017/054942 patent/WO2017153257A1/de active Application Filing
- 2017-03-02 EP EP17708267.4A patent/EP3295540A1/de not_active Withdrawn
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DE102016203739A1 (de) | 2017-09-14 |
WO2017153257A1 (de) | 2017-09-14 |
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