EP3804088A1 - Stator for a rotating electrical machine - Google Patents
Stator for a rotating electrical machineInfo
- Publication number
- EP3804088A1 EP3804088A1 EP19727430.1A EP19727430A EP3804088A1 EP 3804088 A1 EP3804088 A1 EP 3804088A1 EP 19727430 A EP19727430 A EP 19727430A EP 3804088 A1 EP3804088 A1 EP 3804088A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stator
- notches
- electrical conductors
- machine according
- mass
- 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- Withdrawn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
- 239000004020 conductor Substances 0.000 claims abstract description 78
- 239000000463 material Substances 0.000 claims description 51
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000000654 additive Substances 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 3
- 229910052770 Uranium Inorganic materials 0.000 claims description 2
- 230000035699 permeability Effects 0.000 description 16
- 239000002966 varnish Substances 0.000 description 8
- 230000004907 flux Effects 0.000 description 5
- 230000001360 synchronised effect Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000005470 impregnation Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 235000012771 pancakes Nutrition 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
- H02K1/165—Shape, form or location of the slots
-
- 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
-
- 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
- H02K15/024—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with slots
-
- 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
- H02K15/06—Embedding prefabricated windings in machines
- H02K15/062—Windings in slots; salient pole windings
- H02K15/065—Windings consisting of complete sections, e.g. coils, waves
- H02K15/067—Windings consisting of complete sections, e.g. coils, waves inserted in parallel to the axis of the slots or inter-polar channels
-
- 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
-
- 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
Definitions
- the present invention relates to rotating electrical machines and more particularly the stators of such machines.
- the breech household notches completely open or semi-open towards the gap, so as to allow the introduction of windings.
- the half-open notches receive electrical conductors of circular cross section arranged in bulk, while the fully open notches house electrical conductors of rectangular cross section, arranged in a row.
- the patent application FR 3,019,947 describes a stator comprising a toothed crown comprising teeth interconnected by material bridges and defining between them notches for receiving the coils, the notches being open radially outwards. The openings of the notches are closed by a yoke attached to the toothed crown.
- the invention aims to meet this need and it succeeds, according to one of its aspects, thanks to a stator of rotating electrical machine, comprising a stator mass having notches, in which are housed electrical conductors introduced axially into the notches, each of the notches being of continuously closed contour.
- continuously closed is meant that the notches have a continuous closed contour when viewed in cross section, taken perpendicular to the axis of rotation of the machine. The complete notch can be made without encountering a cut in the stator mass.
- the closed notches are not open radially outward.
- the stator according to the invention is devoid of magnetic shims reported.
- the stator mass can be made by stacking magnetic sheets, the notches being cut by sheet metal.
- the closing of the notches on the side of the air gap is obtained by the bridges of material integrally with the rest of the sheets forming the stator mass.
- the stator mass may be at least partially produced by an additive manufacturing technique, in particular by powder sintering and machining.
- the stator may comprise a plurality of stacked pancakes, each made by additive manufacturing.
- This stator makes it possible to greatly reduce the electromagnetic disturbances related to the presence of the openings of the notches giving onto the gap in the prior art.
- the stator can be used as a closed impregnation chamber by sealing the ends of the stator only. The tooling is thus simplified. This also reduces the amount of varnish or resin lost and the cleaning operations required.
- the stator mass may comprise teeth arranged between the notches, which are interconnected on the air gap side by material bridges.
- each notch is closed on the air gap side by a material bridge connecting two consecutive teeth of the stator mass.
- the bridges of material each connect two teeth adjacent to their base on the air gap side and define the bottom of the notch between these teeth.
- the material bridges are in one piece with the adjacent teeth.
- the two consecutive teeth are connected on the opposite side by a breech.
- the breech is made in one piece with the teeth.
- the stator is thus devoid of breech reported on a jagged crown.
- the bridges of material are preferably dimensionally stable. This increases the rigidity of the stator and improves the life of the electric machine.
- the material bridges can be made to be magnetically saturated during operation of the machine. This limits the passage of flow from one notch to another without preventing the passage of the flow from the rotor to the stator.
- At least some and better all the bridges of material may each have at least one reduced magnetic permeability zone in one or more of the following forms:
- At least one localized narrowing formed by at least one groove extending along the longitudinal axis of the stator in the thickness of the material bridge or at least a localized crushing of the material in the width of the material bridge, and / or
- At least one treatment located in the width of the material bridge locally decreasing the magnetic permeability of the material bridge.
- the zone of reduced magnetic permeability formed by the localized narrowing, the localized crushing, the opening or the localized treatment of the material bridge allow said zone of the material bridge to be magnetically saturated during operation of the machine, which limits the passage of the flow and increases the efficiency of the machine.
- the grooves are open towards the notch.
- Each magnetically reduced magnetic permeability zone preferably extends over the entire thickness of the stator mass.
- the region with reduced magnetic permeability extends over a length less than or equal to the thickness of the stator mass.
- the zone with reduced magnetic permeability of each bridge material is preferably continuous in the thickness of the stator mass, rectilinear or not.
- the zone with reduced magnetic permeability is discontinuous in the thickness of the stator mass.
- the stator mass is in the form of stacked sheets, having teeth interconnected at their base on the air gap side by material bridges, at least some and better all material bridges of each of the sheets having each at least one zone with reduced magnetic permeability.
- the areas with reduced magnetic permeability of the material bridges of each of the sheets may not be centered.
- At least two adjacent sheets may have at least two areas of reduced magnetic permeability arranged staggered with respect to each other by partially overlapping or not.
- the staggered arrangement can be achieved by turning over some sheets, in particular of one sheet on two, the stack of sheets forming the stator mass or by angular cutting of the sheets or by uses of different sheets.
- the grooves are open towards the notches.
- the bottom of the notches has at least one bearing surface, preferably at least two bearing surfaces, oriented transversely and the bottom of the groove is recessed relative to this or these surfaces.
- the bearing surface (s) can be oriented obliquely to the radial axis of the corresponding notch or, preferably, oriented perpendicularly to this axis.
- the groove forms a slope break with respect to the bearing surface or surfaces.
- the electrical conductors, preferably of substantially rectangular section, inserted into the corresponding notch are preferably supported against the bearing surfaces and recessed relative to the bottom of the groove. Preferably, the electrical conductors are without contact with the groove.
- the bearing surface or surfaces are preferably flat.
- the bottom of the notch may be flat, except for the groove. This allows a good filling of the notches by the electrical conductors in the case of electrical conductors of rectangular cross section, allowing the coils to bear flat in the bottom of the notches.
- the groove in the bottom of the notch forms, preferably, a clearance between the material bridge and the corresponding electrical conductor, which can facilitate the penetration of the varnish during the impregnation of the stator.
- the material bridge may comprise at least two grooves as described above, for example two grooves per notch.
- the groove or grooves may be centered with respect to the notch or notches, or on the contrary be offset relative to a plane of symmetry of the notch or notches.
- the inner surface of the stator is preferably cylindrical of revolution.
- the groove or grooves may extend over the inner surface of the stator, i. e. the stator surface which defines the gap with the rotor.
- stator When the groove or grooves are located on the inner surface of the stator which defines the gap with the rotor, they can allow the angular identification of the stator, and thus facilitate the stacking of the sheets and indexing.
- the stator can then be devoid of reliefs on its outer surface, which can improve the contact between the cylinder head and cooling means.
- the groove or grooves are each sectionally curved in a plane perpendicular to the axis of the stator, in particular of substantially semicircular section.
- the localized crushing is carried out in the thickness of the material bridge, that is to say along a radial axis of the stator, and constitutes a localized narrowing having a reduced magnetic permeability.
- the crushing preferably forms a groove in the bottom of the notch.
- the localized crushing may be as described above for the grooves.
- the localized crushing is carried out in the thickness of the stator, that is to say along an axis parallel to the longitudinal axis of the stator, and has a reduced magnetic permeability.
- the aforementioned opening preferably extends along the longitudinal axis of the stator over the entire thickness of the stator mass.
- the opening may be of oval cross section, circular, or polygonal shape for example with rounded edges, including rectangular.
- the material bridge may have only one opening in its width.
- the opening may be at the center of the material bridge.
- the opening may have two thinned areas on either side of the latter, the thinned zones being saturated magnetically during operation of the machine.
- the material bridge has a plurality of microperforations in its width.
- the microperforations reduces the sheet section and allows the material bridge to saturate magnetically for a lower magnetic flux.
- the localized treatment makes it possible to locally modify the permeability to the magnetic flux of the material of the bridge.
- the spot treatment may extend over the entire width of the material bridge or only a portion thereof.
- This treatment may be a heat treatment that locally changes the orientation of the metal grains and causes a decrease in magnetic permeability in the circumferential direction.
- the heat treatment is a thermal stress related to the degradation of the material during the laser cutting of the material bridge.
- the electrical conductors can be arranged in the notches in a concentrated or distributed manner.
- Concentrated it is understood that the electrical conductors are each arranged around a single tooth.
- the electrical conductors are distributed in the notches.
- distributed is meant that the electrical conductors of departure and return are each housed in different slots and not consecutive. At least one of the electrical conductors can pass successively in two non-adjacent notches.
- the electrical conductors can be arranged in a row in the notches.
- rangé is meant that the drivers are not arranged in the notches in bulk but in an orderly manner. They are stacked in the slots in a non-random manner, being for example arranged in one or more rows of aligned electrical conductors.
- the electrical conductors may be in cross section of generally rectangular shape, in particular with rounded edges.
- the circumferential dimension of an electrical conductor may correspond substantially to the width of a notch.
- a notch may have in its width only one electrical conductor.
- the width of the notch is defined as its circumferential dimension around the axis of rotation of the machine.
- a notch may have more than one row of electrical conductors. They may be arranged in the notch in one or more rows, for example in a single row, or in two rows, or in three or four rows.
- Electrical conductors can be adjacent to each other by their long sides, otherwise called the dish.
- the optimization of the stack can allow to have in the notches a larger amount of electrical conductors and thus to obtain a stator of greater power at constant volume.
- Each notch may comprise two to eight electrical conductors, including two to four electrical conductors, for example two or four electrical conductors.
- the electrical conductors may be in the form of pins.
- the pin can be U-shaped ("U-pin” in English) or straight, being I-shaped ("I-pin” in English). They are arranged in a row in the notches.
- the electrical conductors can be introduced into the corresponding notches at one or both axial ends of the machine.
- An I-shaped electrical conductor passes through a single slot, and is soldered at each of its ends to two other electrical conductors at the axial ends of the stator.
- a U-shaped electrical conductor passes in two different notches, and is welded at each of its ends to two other electrical conductors, at the same axial side of the stator. The bottom of the U is disposed on the other axial side of the stator.
- the electrical conductors can be made of copper or aluminum.
- the electrical conductors are electrically isolated from the outside by an insulating coating, in particular an enamel.
- the electrical conductors can be separated from the walls of the notch by an insulator, in particular by at least one sheet of insulation. Such insulating sheet allows better insulation of the electrical conductors relative to the stator mass.
- Each notch can receive at least two electrical conductors, including at least two electrical conductors of different phases. These two electrical conductors can be superimposed radially.
- the two electrical conductors are separated from each other by an insulator, in particular at least one insulating sheet, and even more preferably at least two insulating sheets, when a sheet is wound around each electrical conductor or electrical conductor bundle. associated with the same phase.
- At least one notch better all the notches, may be in rectangular cross section. At least one notch may have opposite radial edges parallel to each other, better all the notches have radial edges parallel to each other.
- the width of a notch is preferably substantially constant over its entire height. There is thus a better filling rate of the notches.
- At least one tooth, better all the teeth may be in cross section of generally trapezoidal shape. At least one tooth, better all the teeth, may have divergent edges as one moves away from the axis of rotation of the machine.
- the stator mass can be made by stacking sheets.
- the teeth are interconnected by bridges of material, and the opposite side by a cylinder head.
- the notches closed can be made entirely by cutting in the sheets.
- Each sheet of the stack of sheets can be monobloc.
- Each sheet is, for example, cut from a sheet of magnetic steel or containing magnetic steel, for example steel 0.1 to 1.5 mm thick.
- the sheets can be coated with an electrical insulating varnish on their opposite faces before assembly within the stack. The electrical insulation can still be obtained by a heat treatment of the sheets, if necessary.
- stator mass includes reported sectors.
- the sectors may comprise teeth interconnected by bridges of material, and the opposite side by a cylinder head.
- the sectors are made by cutting.
- the subject of the invention is also a stator mass plate of a stator, in particular of the stator as described above, having teeth interconnected at their base on the air gap side by material bridges, at least some of them, and better all material bridges each having at least one zone with reduced magnetic permeability in the form of:
- ⁇ at least a localized narrowing formed by at least one groove or a localized crushing, and / or
- ⁇ at least one opening in the width of the thickness of the bridge of material, and / or
- ⁇ at least one localized treatment in the width of the bridge of material locally decreasing the magnetic permeability of the material bridge.
- stator When the stator is formed by stacking sheets as described above, the teeth of the sheets are aligned to form the stator teeth and the material bridges of the sheets form by stacking the material bridges of the stator.
- the invention further relates to a rotating electrical machine, such as a synchronous motor or a synchronous generator, comprising a stator as defined above.
- the machine can be synchronous or asynchronous.
- the machine can be reluctant. It can constitute a synchronous motor.
- the rotating electrical machine may comprise a rotor.
- the rotor may be a wound or permanent magnet rotor. In the case where the machine is intended to operate as an alternator, the rotor can be wound. In the case where the machine is intended to operate as a motor, the rotor may be permanent magnets.
- the machine can have a relatively large size.
- the diameter of the rotor may be greater than 50 mm, more preferably greater than 80 mm, being for example between 80 and 500 mm.
- the rotor may comprise a rotor mass extending along the axis of rotation and arranged around a shaft.
- the shaft may comprise torque transmission means for driving in rotation of the rotor mass.
- the rotor can be cantilevered or not.
- the rotor can be made of several rotor pieces aligned in the axial direction, for example three pieces. Each piece can be angularly shifted relative to the adjacent pieces ("step skew" in English). The rotor can be twisted.
- the invention also relates, independently or in combination with the foregoing, to a method of manufacturing a stator of a rotating electrical machine, in particular a stator as defined above, in which electrical conductors are arranged in the notches of a stator stator mass by introducing them into the corresponding notches by one or both axial ends of the stator.
- a single U-shaped electrical conductor can be arranged in two different non-consecutive slots of the stator stator mass. In the case where an electrical conductor is U-shaped, it is soldered to two other electrical conductors on the same side of the machine.
- I-shaped electrical conductors previously introduced into two different non-consecutive notches of the stator stator mass can be interconnected.
- an electrical conductor is I-shaped, it is soldered to two other electrical conductors on two opposite sides of the machine.
- the stator can be twisted. ("Skewing" in English). Such twisting makes it possible in particular to tighten the windings in the notches and to reduce the harmonics of notches. detailed description
- FIG. 1 is a schematic and partial perspective view of a stator made according to the invention
- FIG. 2 is a view from above, according to arrow II,
- FIG. 3 is a schematic and partial perspective view of the electrical conductors of the stator of FIGS. 1 and 2, taken separately,
- FIG. 4 is a cross-sectional view, in a schematic and partial manner, of the stator mass of the stator according to the invention.
- FIG. 5 schematically and partially shows a portion of the stator mass of the stator of FIG. 1;
- FIG. 6 is a schematic and partial cross-sectional view of the stator
- FIGS. 1 to 6 show a stator 2 of a rotating electrical machine 1 also comprising a rotor, not shown.
- the stator makes it possible to generate a rotary magnetic field driving the rotor in rotation, in the context of a synchronous motor, and in the case of an alternator, the rotation of the rotor induces an electromotive force in the electrical conductors of the stator.
- the stator 2 comprises electrical conductors 22, which are arranged in notches 21 formed between teeth 23 of a stator mass 25.
- the notches 21 are closed, that is to say that one can make the complete turn of each notch 21 without encountering a cut in the stator mass.
- the notches 21 are closed on the air gap side by bridges of material 27, each connecting two consecutive teeth of the stator mass 25, and the opposite side by a yoke 29.
- the latter and the teeth 23 are in one piece .
- the cylinder head 29 may be equipped, if appropriate, with semi-circular longitudinal ribs 31 intended to house cooling liquid circulation ducts.
- the electrical conductors 22 are arranged in a distributed manner in the notches 21. They may have a shape of I or U.
- the electrical conductors 22 are arranged in a row in the notches 21, in one or more rows of aligned electrical conductors.
- the electrical conductors may be in cross section of generally rectangular shape, in particular with rounded corners. They are in the example described superimposed radially in a single row.
- the circumferential dimension of an electrical conductor substantially corresponds to the width of a notch.
- the notch has in its width only one electrical conductor. It may comprise several electrical conductors in its radial dimension.
- the electrical conductors 22 are made of copper or other enameled conductive material or coated with any other suitable insulating coating.
- a notch comprises at least two electrical conductors of different phases.
- a notch comprises four electrical conductors.
- Each electrical conductor 22 is surrounded by an insulating sheet 37 making it possible to isolate the electrical conductors from the walls 33 and 36 of the notch and the electrical conductors 22 of different phases, as can be seen in FIG.
- the notches 21 are, in the example described, with radial edges 33 parallel to each other, and are in section in a plane perpendicular to the axis of rotation X of the machine of substantially rectangular shape.
- the bottom 35 of the notches 21 is of a shape substantially complementary to that of the electrical conductors 22, with the exception of a groove or a localized crush 40.
- a groove In the following, reference will be made to a groove only, but It must be understood that localized crushing is also possible instead of the groove.
- the bottom 35 of the notches 21 is connected to the radial edges 33 by roundings 38.
- the groove 40 of each notch 21 is centered on the bottom of the notch 35 and extends along the axis of rotation X of the machine .
- the groove may not be centered, or the bottom 35 could have several grooves.
- the grooves 40 have, in section in a plane perpendicular to the axis X, a curved shape, in particular substantially semicircular. They have a depth p between 0.2 mm and 1 mm, for example equal to 0.42 mm.
- the grooves 40 form a localized narrowing of the material bridges 27. Such a narrowing allows a magnetic saturation of the sheet for a lower magnetic flux along the bridge 27, which limits the passage of the magnetic flux.
- the smallest width / material bridges 27 is preferably between 0.3 mm and 0.6 mm, for example equal to 0.4 mm.
- the stator mass 25 is formed of a stack of magnetic sheets stacked along the X axis, the sheets being for example identical and superimposed exactly. They can be held together by clipping, gluing, rivets, tie rods, welds and / or any other technique.
- the magnetic sheets are preferably magnetic steel.
- the teeth 23 of the stator mass 25 may have complementary surface reliefs for clipping the different plates forming the stator mass 25 between them.
- the stator mass may also be formed of one or more cut sheet metal strips wound on themselves.
- the stator can be obtained by means of a manufacturing process in which the electrical conductors 22 are inserted in the notches 21 by one or both axial ends of the stator, by sliding in the notches 21 along an axis parallel to the longitudinal axis X.
- the invention is not limited to the embodiments which have just been described, and the rotor associated with the stator described can be wound or permanent magnets.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Windings For Motors And Generators (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1854963A FR3082373B1 (en) | 2018-06-07 | 2018-06-07 | ROTATING ELECTRIC MACHINE STATOR |
PCT/EP2019/064503 WO2019234030A1 (en) | 2018-06-07 | 2019-06-04 | Stator for a rotating electrical machine |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3804088A1 true EP3804088A1 (en) | 2021-04-14 |
Family
ID=63557615
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19727430.1A Withdrawn EP3804088A1 (en) | 2018-06-07 | 2019-06-04 | Stator for a rotating electrical machine |
Country Status (7)
Country | Link |
---|---|
US (1) | US11962187B2 (en) |
EP (1) | EP3804088A1 (en) |
JP (1) | JP2021526783A (en) |
KR (1) | KR20210042262A (en) |
CN (1) | CN112243558A (en) |
FR (1) | FR3082373B1 (en) |
WO (1) | WO2019234030A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114583856A (en) * | 2020-11-30 | 2022-06-03 | 日立安斯泰莫汽车系统(苏州)有限公司 | Motor stator and motor equipped with same |
FR3118546B1 (en) * | 2020-12-24 | 2023-11-24 | Somfy Activites Sa | Synchronous type electric motor, range of electric motors, closing, concealment or solar protection device comprising an electric motor of such a range and method of manufacturing an electric motor of such a range |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2800226B2 (en) * | 1989-02-08 | 1998-09-21 | 松下電器産業株式会社 | Rotating machine stator core |
JP3744461B2 (en) * | 2002-04-26 | 2006-02-08 | 株式会社デンソー | Rotating electric machine stator |
US7550892B2 (en) * | 2005-10-03 | 2009-06-23 | Ut-Battelle, Llc | High slot utilization systems for electric machines |
JP2007295763A (en) * | 2006-04-27 | 2007-11-08 | Hitachi Ltd | Stator of rotary electric machine and ac generator |
CN102684330A (en) * | 2012-05-10 | 2012-09-19 | 罗子航 | Stator of inner-rotor motor with outward rabbet, and mating housing |
FR3019948B1 (en) * | 2014-04-10 | 2017-12-22 | Moteurs Leroy-Somer | ROTOR OF ELECTRIC ROTATING MACHINE. |
FR3019947B1 (en) * | 2014-04-10 | 2017-12-08 | Moteurs Leroy-Somer | STATOR OF ROTATING ELECTRIC MACHINE. |
FR3019949B1 (en) | 2014-04-10 | 2018-01-05 | Moteurs Leroy-Somer | ROTOR OF ELECTRIC ROTATING MACHINE. |
CN106532999A (en) | 2015-09-10 | 2017-03-22 | 德昌电机(深圳)有限公司 | Single-phase permanent magnet motor |
CN105680581A (en) * | 2016-03-04 | 2016-06-15 | 上海电气集团股份有限公司 | High-power density permanent magnet servo motor and stator structure therefor |
CN106787568B (en) * | 2017-03-31 | 2023-08-08 | 广东美芝制冷设备有限公司 | Compressor and air conditioner |
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2018
- 2018-06-07 FR FR1854963A patent/FR3082373B1/en active Active
-
2019
- 2019-06-04 US US17/058,546 patent/US11962187B2/en active Active
- 2019-06-04 WO PCT/EP2019/064503 patent/WO2019234030A1/en unknown
- 2019-06-04 JP JP2020567241A patent/JP2021526783A/en active Pending
- 2019-06-04 CN CN201980038196.4A patent/CN112243558A/en active Pending
- 2019-06-04 EP EP19727430.1A patent/EP3804088A1/en not_active Withdrawn
- 2019-06-04 KR KR1020207035061A patent/KR20210042262A/en unknown
Also Published As
Publication number | Publication date |
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CN112243558A (en) | 2021-01-19 |
KR20210042262A (en) | 2021-04-19 |
US20210126496A1 (en) | 2021-04-29 |
FR3082373A1 (en) | 2019-12-13 |
WO2019234030A1 (en) | 2019-12-12 |
JP2021526783A (en) | 2021-10-07 |
FR3082373B1 (en) | 2021-12-24 |
US11962187B2 (en) | 2024-04-16 |
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