WO2019110272A1 - Verfahren zum herstellen eines stators für eine elektrische maschine - Google Patents
Verfahren zum herstellen eines stators für eine elektrische maschine Download PDFInfo
- Publication number
- WO2019110272A1 WO2019110272A1 PCT/EP2018/081527 EP2018081527W WO2019110272A1 WO 2019110272 A1 WO2019110272 A1 WO 2019110272A1 EP 2018081527 W EP2018081527 W EP 2018081527W WO 2019110272 A1 WO2019110272 A1 WO 2019110272A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- stator
- plastic
- plastic mass
- coolant
- encapsulation
- Prior art date
Links
Classifications
-
- 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
- H02K3/24—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
-
- 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
- H02K15/12—Impregnating, heating or drying of windings, stators, rotors or machines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
Definitions
- the invention relates to a method for producing a stator for an electrical cal machine.
- the invention further relates to a stator, which is produced by means of this method, as well as an electric machine with such a stator.
- conventional stators for electric machines include stator windings which are electrically energized during operation of the machine.
- Such an electric machine can generally be an electric motor or a generator.
- the electric machine can be designed as an external rotor or as an internal rotor.
- heat is generated which must be dissipated to prevent overheating and the associated damage or even destruction of the stator.
- Such cooling comprises one or more cooling channels, through which a coolant flows and which are arranged in the vicinity of the stator windings in the stator. Heat can be removed from the stator by transferring heat from the stator windings to the coolant. In this way, overheating of the stator windings and, associated therewith, damage or even destruction of the stator can be avoided.
- stator windings wound onto the stator teeth can be permanently fixed on the stator.
- electrically conductive windings do not rest on the stator body, which is also electrically conductive, which typically is stacked by electrically conductive Sheet metal parts are gebil det.
- the associated electrical connection between stator windings and stator body causes an undesirable electrical short circuit.
- stator windings are already manufactured with electrical insulation, since these are caused during operation of the electrical machine due to high temperatures which are caused by the electrical current flowing through the strong entanglements can, especially since it can be partially damaged or even destroyed.
- stator windings do not protrude into the cooling channels after the production of the cooling channels by the injection molding process with plastic compound.
- stator windings may come into direct contact with the coolant guided through the cooling channels, which must be avoided in order to electrically connect the stator windings to the stator windings Avoid coolant.
- a method according to the invention for producing a stator for an electric machine comprises a first step a).
- a stator is provided which comprises an annular stator body, from which, in turn, radially inwardly a plurality of stator teeth spaced apart from each other along a circumferential direction protrude to receive stator windings. Between two circumferentially adjacent stator teeth in each case a gap, the so-called stator groove is formed.
- At least two circumferentially adjacent stator teeth are at least partially injected with a first plastic compound. In this way it is ensured that the stator windings still to be wound on the stator teeth are additionally electrically insulated from the electrically conductive star teeth after the winding process.
- the circumferential sides of the stator tooth facing the interstices are encapsulated.
- At least one stator winding is arranged on at least one stator tooth.
- This process corresponds to the winding of the stator windings on the stator teeth.
- the stator windings can be realized as concentrated or distributed stator windings.
- this at least one stator winding is fixed on the stator tooth by at least partial encapsulation of this stator winding with a second plastic compound, that is to say permanently fixed.
- a first masking is introduced into at least one intermediate space between the two stator teeth before fixing the at least one stator winding in accordance with step d), preferably before encapsulation with the first plastic compound according to step b).
- This masking covers a surface portion of the stator body which delimits the gap radially on the outside. pers, so that it is not covered during encapsulation according to step d) with the second plastic compound, preferably also not with the first plastic mass.
- the area filled in by the first masking forms a cavity, which can be flowed through by a coolant after removal of the masking as a coolant channel.
- the cooling of the stator windings can thus be achieved in a stator produced by means of the method presented here by transporting waste heat generated in the stator windings, in particular in their axial end sections, through the first, second and / or third plastic mass to form the stator body. th coolant channels take place. There, the waste heat from the channels through the coolant flowing coolant is absorbed.
- the procedure described above is applied to a plurality of the stator teeth and to a plurality of the stator windings.
- the procedure described above is applied to all stator teeth present in the stator body and to all stator windings arranged on the stator teeth.
- the first masking is introduced into a radially outer end portion of the respective gap.
- the first masking completely fills the radially outer end section after it has been introduced into the radially outer end section of the intermediate space.
- the method comprises an additional method step e), according to which the first masking is removed again from the intermediate space after encapsulation with the second plastic mass, so that a cavity formed after removal of the first masking forms a coolant channel for Flow through forms with a coolant.
- the method comprises an additional method step f).
- the second plastic mass defining one of the cavities or one of the coolant channels and, alternatively or additionally, the stator winding fixed to the stator tooth by means of the second plastic compound and, alternatively or additionally, one before the removal of the (first) Masking of this covered surface portion of the stator body with a third plastic compound encapsulated.
- the coolant channel in question is thus limited exclusively by the third plastic compound after execution of step f). Inadmissible electrical / mechanical contact of the stator windings with the coolant is excluded in this way.
- the encapsulation with the third plastic compound takes place in such a way that, after encapsulation, the cavity or coolant channel is no longer limited at any point directly by a stator winding and / or by the stator body. Inadmissible electrical / mechanical contact of the stator windings with the coolant is thus excluded.
- the encapsulation with the third plastic compound takes place after removal of the first masking. This ensures that the first Masking covered surface portions of the stator body are not covered with the third plastic compound.
- At least two adjacent in the circumferential direction stator teeth of the stator provided in step a) each have at least one protruding from the stator in an end portion at least one protruding in the circumferential direction extension.
- the two extensions of the circumferentially adjacent stator teeth lie opposite one another in the circumferential direction. In this way, the two extensions, forming a passage slot, partially delimit the intermediate space formed radially between the stator teeth.
- This second masking covers a surface section of the stator body that radially delimits the intermediate space so that it is not covered with the second plastic compound, preferably also with the first plastic compound, during the injection molding according to step d).
- the filled by the second masking area forms a Flohlraum, from which later a coolant channel can be formed.
- the procedure described above is applied to a plurality of the stator teeth and to a plurality of the stator windings.
- the procedure described above is applied to all of the stator teeth present in the stator body and to all stator windings arranged on the stator teeth.
- the method may comprise a further additional method step e1).
- this step e1) the second masking is removed from the passage slot after the encapsulation with the second plastic mass. This creates a floo space, from which a coolant channel for flowing through with a coolant can be generated.
- the method may comprise a further additional method step fl).
- the additional method step fl the second plastic mass bounding the additional coolant channel and, alternatively or additionally, the stator winding fixed to the stator tooth by means of the second plastic mass and, alternatively or additionally, before the removal of the (second) masking from this covered surface portion of the stator teeth with a third plastic compound injected. This takes place in such a way that an additional coolant channel is formed which is fluidically separated from the adjacent intermediate space at the latest after the encapsulation with the third plastic compound. Any stator windings projecting from the second plastic mass are thus isolated from the coolant flowing through the coolant channel.
- the additional coolant channel is limited exclusively by the third plastic compound. Inadmissible electrical contact of the stator windings with the coolant is excluded in this way.
- the encapsulation with the third plastic compound expediently takes place in such a way that, after encapsulation, the cavity or coolant channel is not limited at any point directly by the stator winding and / or by the stator body. Inadmissible electrical contact of the stator windings with the coolant is excluded in this way.
- the second masking is designed such that it not only fills in the through slot formed between the two stator teeth adjacent in the circumferential direction, but additionally projects radially outwards into the remaining intermediate space between the two stator teeth.
- masking additionally fills a radially inner end section of the intermediate space adjoining the passage slot.
- the second masking in a cross section of the stator perpendicular to its central longitudinal axis comprises a T-like geometry with a vertical and a horizontal section.
- the vertical portion fills the passage slot
- the horizontal portion fills the radially inner end portion of the clearance.
- the first and / or second masking proves to be particularly cost-effective and therefore cost-effective if they are formed by a preferably plate-like or platelet-like insert, preferably made of steel.
- the method may comprise a further fol lowing, additional process step g), according to which encapsulation at least one outer peripheral side of the stator body, are encapsulated with a fourth plastic compound.
- axially encircling extensions are encapsulated with the fourth plastic compound during encapsulation in accordance with step g) and on the outer circumferential side of the stator body, from each of which axially end threaded rods for attachment of a respective bearing plate protrude on the stator body.
- thermoplastics are used as a result of the reversible shaping process used in their processing. This is better recyclable or exhibit compared to thermosets less brittle and improved damping properties.
- thermoplastics are usually more expensive to procure than thermosets, it is advisable for cost reasons to use thermoplastics selectively.
- the first and / or the second and / or the third and / or the fourth plastic mass comprises a thermoplastic or is a thermoplastic in order to exploit the above-mentioned advantages.
- a further preferred embodiment provides that the first and / or the second / and / or the third and / or the fourth plastic compound comprises a thermoset or a thermoset, with which the above-mentioned cost advantages can be exploited.
- the plastic material of the first, second and / or third plastic compound comprises a thermoset or is a thermosetting plastic.
- the plastic material of the fourth plastic composition in this embodiment comprises a thermoplastic or is a thermoplastic.
- the thermal conductivity of the fourth plastic mass is smaller than the thermal conductivity of the first, second and / or third plastic mass.
- the first, second and third plastic mass have the same thermal conductivity.
- the first, second and third plastic masses each have different thermal conductivities.
- a coolant resistance of the third plastic compound is greater than the coolant resistance of the second or first plastic material.
- the thermal conductivity of the first and the second plastic mass is greater than the thermal conductivity of the third and the fourth plastic mass.
- axially opposite two end shields are fastened to the stator body by means of the overmolded threaded rods.
- This takes place in such a way that a first end shield closes a first hollow space provided in the third and / or fourth plastic mass, which forms a coolant distributor space and for this purpose communicates fluidically with the existing cooling ducts.
- the fastening also takes place in such a way that a second end shield closes a second hollow space provided in the third and / or fourth plastic mass, which forms a coolant-collecting space and for this purpose communicates fluidically with the existing cooling ducts.
- the two end shields may be formed in the manner of end plates which oppose each other in the axial direction and axially elongate the stator body.
- a recess may be provided which expand the cavity provided respectively in the third and fourth plastic mass.
- the method comprises two additional method steps h1, h2.
- a coolant distributor space and a coolant collector space are provided on and / or in the stator which communicate fluidically with one another via the at least one coolant channel and / or via the at least one additional coolant channel.
- the coolant distribution chamber serves to distribute the coolant to the cooling channels, the coolant collector chamber to collect the coolant after flowing through the cooling channels.
- the coolant distributor and the coolant-collecting space may be arranged in the axial extension of the stator body and opposed to each other along the axial direction.
- the coolant distributor chamber and the coolant collector can at least partially be arranged or formed in the second plastic mass.
- the electrically conductive stator windings are usually already surrounded during their manufacture with an electrical insulation in order to prevent electrical short-circuits are generated when contact individual winding sections together. However, it can not be ensured that after manufacture and assembly of the stator windings, all these windings are continuously equipped with such insulation.
- the second plastic mass delimiting the coolant distributor space and / or the coolant collector space and / or the axial end sections of at least one stator winding, preferably all stator windings present in the stator are encapsulated and / or with an electrically insulating insulating material sprayed.
- an electrically insulating lacquer is used for this purpose.
- a plastic mass in particular the third plastic mass and / or the fourth plastic mass. In this way, an undesired electrical short-circuit of the coolant present in the coolant distributor chamber or in the coolant collector chamber with the electrically conductive stator windings can be prevented.
- the overmolding or spraying according to step h2) takes place in such a way that neither the second plastic compound nor the axial end sections of the at least one stator winding, preferably all the stator windings, immediately delimit the coolant distributor chamber or the coolant collector chamber after encapsulation or spraying. In this way, an undesirable electrical cal connection of the electrically conductive stator windings with the coolant in the distributor space or coolant collecting space available coolant is excluded.
- step d) of the method or offset in time ie before the execution of step d) or after the execution of step d
- the axial end portions of the at least one stator winding by means of a plastic material, preferably by means of the second plastic compound, fixed on the at least one stator tooth.
- the invention further relates to a stator which has been produced by means of the method explained above.
- the above-explained advantages of the method according to the invention are therefore also transferred to the stator according to the invention.
- the invention further relates to an electric machine with the above-mentioned stator, which is thus produced by means of the method according to the invention.
- the above-explained advantages of the method according to the invention are therefore also transferred to the electric machine according to the invention.
- the electric machine comprises not only the stator but also a rotor which is rotatable relative to the stator about a rotation axis.
- FIG. 1 a illustrates a perspective view of a stator 1 with a ring-shaped stator body 2, which is provided in step a) of the method according to the invention.
- stator teeth 2 spaced from each other along a circumferential direction U of the annular stator body 2, are arranged radially inwardly away from the stator body 2 to accommodate stator windings (not shown in FIG. 1).
- a gap 4 is formed in each case, which is familiar to those skilled in the term "stator-groove”.
- FIG. 1b shows a detailed representation of the stator body 2 of FIG.
- a radial direction R extends perpendicularly from the central longitudinal axis away and thus extends orthogonal to both the axial direction A and the circumferential direction U.
- Each stator tooth 3 has, at an end section facing away from the stator body 2, both an extension 12a, 12b projecting from the stator tooth 3 in the circumferential direction U and counter to the circumferential direction U, so that in each case two extensions 12a which are opposite one another in the circumferential direction U , 12b of two adjacent in the circumferential direction U stator teeth 3, the intermediate space 4 to form a through slot 13 radially inward partially.
- FIGS. 2 a and 2 b show the stator body 2 after carrying out the method step b) in a representation corresponding to FIGS. 1 a and 1 b.
- FIG. 2 c shows a detail of FIG. 2 a of a plurality of adjacent stator teeth 3.
- a respective first masking 6 a is introduced into the respective intermediate spaces 4 between the stator teeth 3 adjacent in the circumferential direction U. This is shown in FIGS. 1 b and 2 b (the mask 6 a is not shown in FIGS. 1 a, 2 a and 2 c for reasons of clarity).
- Said first masking 6a covers, after introduction, a surface section 7 radially delimiting the intermediate space, the so-called groove bottom of the stator body 2, so that it is not covered or filled with the first plastic compound K1 during encapsulation according to step d).
- the first masks 6a are respectively introduced into a radially outer end portion 10a of the respective gap 4.
- the first masks 6a completely fill the respective radially outer end section 10a.
- stator windings 5 are arranged on the stator teeth 3. This is shown in rough schematic form in FIGS. 3 a, 3 b and 3 c, which shows the stator body 2 after carrying out the method step c) in a representation corresponding to FIGS. 2 a, 2 b and 2 c.
- stator windings 5 are fixed on the stator teeth 3 by at least partial encapsulation with a second plastic compound K2.
- FIGS. 4a, 4b and 4c shows the stator body 2 in a representation corresponding to FIGS. 3a, 3b and 3c.
- the second masking 6 b in a cross-section of the stator 1 perpendicular to its central longitudinal axis can comprise a T-like geometry with a vertical section 14 and with a horizontal section 15, the vertical section 14 filling the through slot 13 and the horizontal section Section fills a radially inner end portion 10 b of the relevant interspace 4.
- the first masks 6a are removed again from the intermediate spaces 4 in a method step e), such that a float space 8 present after the removal of the masks 6a has a coolant channel 9 for flowing through with a coolant can train.
- the second masks 6b can also be removed again from the through-slots 13 after the second plastic material K2 has been encapsulated, so that after removal of the second mask 6b, additional coolant channels 9 are formed from the formed cavities 8 'can be made to flow through with the coolant.
- step f) the second plastic mass K2 bounding the cavity 8 or coolant channel 9, the stator windings 3 fixed to the stator teeth 2 by means of the second plastic mass K2, and the upper covered by the latter prior to removal of the (first) masks 6a - Overmolded surface portions 7 of the stator 2 with a third plastic compound K3.
- the method step f) is carried out after the removal of the first maskings 6a.
- the encapsulation with the third plastic compound K3 in the course of step f) preferably takes place in such a way that the cavities 8 or coolant channels 9 are fluidly separated from the respective radially inwardly disposed gap 4 at the latest after encapsulation with the third plastic compound K3.
- the cavities 8 or coolant channels 9 formed are bounded exclusively by the third plastic mass K3, so that the desired electrical insulation of the stator body 2 is ensured with respect to the coolant flowing through the coolant channels 9.
- the second plastic mass K2 delimiting the additional coolant channels 9 ', the stator windings 5 fixed to the stator teeth 3 by means of the second plastic mass K2, and the surface portions of the stator teeth 3 covered by the second masks 6b a third plastic compound to be encapsulated.
- the encapsulation takes place in such a way that an additional coolant channel 9 'can be formed from the respective cavity 8'.
- the additional cooling medium channels 9 ' are at the latest after the encapsulation with the third plastic compound K3 are fluidly separated from the respective radially inwardly adjacent gap 4.
- the additional coolant channels 9 ' are limited exclusively by the third plastic compound K3.
- the encapsulation with the third plastic mass K3 is particularly preferably carried out in such a way that, after encapsulation with the third plastic mass K3, the additional coolant channels 9 'are not limited at any point directly by the stator windings 5 or the stator body 2.
- the second masks 6b may, as shown in the figures, be designed such that they each not only fill the passage slot 13 formed between the stator teeth 3, but additionally protrude radially outward into the respective intermediate space 4 between the two stator teeth 3, so that the second masks 6b each additionally also fill a radially inner end section 10b of the intermediate space 4 adjoining the passage slot 13.
- the encapsulation with the third plastic compound K3 is particularly expedient in such a way that after the encapsulation the cavities 8 or the coolant channels 9 are not bounded at any point directly by the stator windings 5 or the stator body 2.
- at least one outer circumferential side 16 of the stator body 2 can be overmolded with a fourth plastic compound K4. This is shown in FIGS. 6a and 6b, whose representations correspond to FIGS. 5a and 5. As shown in FIGS.
- axially extending extensions 18 can be provided on the outer circumferential side 16 of the stator body 2, from each of which axial ends threaded rods 19 for fastening a respective end shield on Projecting stator 2, are also overmolded with the fourth plastic mass K4.
- a receptacle may be provided in the respective extension 18, which receptacle may be designed in particular as a passage opening can. In this case, the respective threaded rod 19 passes through said passage opening.
- two bearing shields can be fastened on the stator body.
- a first end shield 20a closes a first cavity 21a provided in the third and fourth plastic masses K3, K4, which forms a coolant distributor chamber 22a and communicates fluidically with the cooling channels 9, 9 'present in the stator 1
- a second end shield (not shown) closes a second cavity (not shown) formed in the third and fourth plastic masses K3, K4, which forms a coolant reservoir (not shown) and communicates fluidically with the cooling passages 9, 9 'formed in the stator 1.
- the two end shields are opposite to each other according to the figures 7a and 7b along the axial direction A and limit the stator 2 of the stator 1 axially.
- the coolant distributor chamber 22a and the coolant collector chamber each have a U-shaped geometry which partially surrounds a respective axial end section 23 of the stator windings 5 in the axial extension and radially outside and radially inside.
- the coolant distributor chamber 22a and the coolant collector chamber each have an I-shaped geometry, which has a respective axial end section of the stator windings 5 in the axial extension and radially outward partially surround.
- the K3 each comprises a thermoset or is each a thermoset.
- the plastic material K4 of the fourth plastic mass K4 comprises a thermoplastic or is a thermoplastic.
- the thermal conductivity of the fourth plastic mass K4 is in each case smaller than the thermal conductivity of the first, second and third plastic masses K1, K2, K3.
- the thermal conductivity of the first and second plastic masses K1, K2 is in each case greater than the thermal conductivity of the third and fourth plastic masses K3, K4.
- a coolant resistance of the third plastic mass K3 is expediently greater than the coolant resistance of the second or first plastic mass K1, K2.
- first, second and third plastic masses K1, K2, K3 have the same thermal conductivity.
- first, second and third plastic masses K1, K2, K3 can each have different thermal conductivities:
- the first and the second masks 6a, 6b can each be formed by a plate-like or plate-like insert 17a, 17b, preferably made of a steel.
- the second plastic mass K2 which initially delimits the coolant distributor chamber 22a and also the coolant collector chamber 22b, can be overmolded and / or sprayed with an electrically insulating insulating material (not shown).
- an electrically insulating varnish is used for this purpose.
- the third plastic mass K3 and / or the fourth plastic mass K4 or another suitable plastic mass can be used for this purpose.
- the spraying or spraying takes place in such a way that neither the second plastic mass K2 nor the axial end sections of the stator windings 5 directly delimit the coolant distributor chamber 22a or the coolant collector chamber 22b after the encapsulation or spraying. In this way, an undesired electrical connection of the electrically conductive stator windings 6 with the coolant in the coolant distribution chamber 22a or coolant collecting chamber 22b existing coolant is excluded.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Motors, Generators (AREA)
- Motor Or Generator Cooling System (AREA)
- Windings For Motors And Generators (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/769,578 US11527932B2 (en) | 2017-12-04 | 2018-11-15 | Method for producing a stator for an electric machine |
JP2020526914A JP7028972B2 (ja) | 2017-12-04 | 2018-11-16 | 電気機械用ステータの製造方法 |
CN201880074004.0A CN111344930B (zh) | 2017-12-04 | 2018-11-16 | 制造电机的定子的方法 |
DE112018006165.5T DE112018006165A5 (de) | 2017-12-04 | 2018-11-16 | Verfahren zum Herstellen eines Stators für eine elektrische Maschine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017221808.8 | 2017-12-04 | ||
DE102017221808.8A DE102017221808A1 (de) | 2017-12-04 | 2017-12-04 | Verfahren zum Herstellen eines Stators für eine elektrische Maschine |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2019110272A1 true WO2019110272A1 (de) | 2019-06-13 |
Family
ID=64332314
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2018/081527 WO2019110272A1 (de) | 2017-12-04 | 2018-11-16 | Verfahren zum herstellen eines stators für eine elektrische maschine |
Country Status (5)
Country | Link |
---|---|
US (1) | US11527932B2 (de) |
JP (1) | JP7028972B2 (de) |
CN (1) | CN111344930B (de) |
DE (2) | DE102017221808A1 (de) |
WO (1) | WO2019110272A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017220856A1 (de) * | 2017-11-22 | 2019-06-06 | Bayerische Motoren Werke Aktiengesellschaft | Kühlkappe für einen Stator einer elektrischen Maschine eines Kraftfahrzeugs, Stator sowie Kraftfahrzeug |
USD1005355S1 (en) * | 2019-07-24 | 2023-11-21 | ABC Acquisition Company, LLC | Radial bearing |
EP4220906A1 (de) | 2022-01-27 | 2023-08-02 | MAHLE International GmbH | Stator für eine elektrische maschine, herstellungsverfahren dafür und kraftfahrzeugkomponente mit solch einem stator |
EP4220905A1 (de) | 2022-01-27 | 2023-08-02 | MAHLE International GmbH | Stator, vorzugsweise umgossener stator, für eine elektrische maschine, vorzugsweise eine maschine mit radialen kühlkanälen, herstellungsverfahren für solch einen stator und verwendung solch eines stators in einer elektrischen maschine |
CN115714514B (zh) * | 2022-12-23 | 2023-11-14 | 苏州安胜信自动化科技有限公司 | 一种电机定子贴胶带设备 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH413077A (de) * | 1964-03-25 | 1966-05-15 | Oerlikon Maschf | Anordnung flüssigkeitsdurchströmter Kühlrohre im Blechkörper einer elektrischen Maschine |
EP1780872A2 (de) * | 2005-10-26 | 2007-05-02 | Festool GmbH | Elektromotor und Verfahren zu dessen Herstellung |
US20140292118A1 (en) * | 2013-03-29 | 2014-10-02 | Denso Corporation | Stator, rotary electric machine provided with the stator and method of manufacturing the stator |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2716286B2 (ja) * | 1991-06-10 | 1998-02-18 | ファナック株式会社 | モータにおけるステータ巻線の冷却構造とその製造方法 |
US7211919B2 (en) * | 1999-08-16 | 2007-05-01 | American Superconductor Corporation | Thermally-conductive stator support structure |
JP2003289652A (ja) | 2002-03-27 | 2003-10-10 | Nissan Motor Co Ltd | 回転電機の製造方法 |
CN1258254C (zh) | 2002-04-01 | 2006-05-31 | 日产自动车株式会社 | 多轴、多层电机的定子冷却结构 |
DE102006008423A1 (de) * | 2006-02-23 | 2007-08-30 | Wilo Ag | Motorkreiselpumpe |
DE102006062747A1 (de) * | 2006-06-27 | 2008-01-10 | Salwit Agrarenergie Gmbh | Elektrische Maschine |
DE102006029803A1 (de) * | 2006-06-27 | 2008-01-03 | Salwit Agrarenergie Gmbh | Verfahren zum Herstellen einer elektrischen Maschine sowie elektrische Maschine, hergestellt nach diesem Verfahren |
US7705495B2 (en) * | 2006-11-17 | 2010-04-27 | Gm Global Technology Operations, Inc. | Cooling system for an electric motor |
WO2010099974A2 (de) | 2009-03-05 | 2010-09-10 | Cpm Compact Power Motors Gmbh | Doppelrotormotor mit wärmeableitung |
US9729020B2 (en) * | 2011-03-22 | 2017-08-08 | Hamilton Sundstrand Corporation | Motor stator having channels used for cooling and method of providing the channels |
-
2017
- 2017-12-04 DE DE102017221808.8A patent/DE102017221808A1/de not_active Withdrawn
-
2018
- 2018-11-15 US US16/769,578 patent/US11527932B2/en active Active
- 2018-11-16 DE DE112018006165.5T patent/DE112018006165A5/de active Pending
- 2018-11-16 JP JP2020526914A patent/JP7028972B2/ja active Active
- 2018-11-16 CN CN201880074004.0A patent/CN111344930B/zh active Active
- 2018-11-16 WO PCT/EP2018/081527 patent/WO2019110272A1/de active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH413077A (de) * | 1964-03-25 | 1966-05-15 | Oerlikon Maschf | Anordnung flüssigkeitsdurchströmter Kühlrohre im Blechkörper einer elektrischen Maschine |
EP1780872A2 (de) * | 2005-10-26 | 2007-05-02 | Festool GmbH | Elektromotor und Verfahren zu dessen Herstellung |
US20140292118A1 (en) * | 2013-03-29 | 2014-10-02 | Denso Corporation | Stator, rotary electric machine provided with the stator and method of manufacturing the stator |
Also Published As
Publication number | Publication date |
---|---|
DE102017221808A1 (de) | 2019-06-06 |
JP7028972B2 (ja) | 2022-03-02 |
DE112018006165A5 (de) | 2020-08-20 |
US11527932B2 (en) | 2022-12-13 |
US20200373799A1 (en) | 2020-11-26 |
CN111344930A (zh) | 2020-06-26 |
JP2021503272A (ja) | 2021-02-04 |
CN111344930B (zh) | 2023-01-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2019110272A1 (de) | Verfahren zum herstellen eines stators für eine elektrische maschine | |
WO2019110274A1 (de) | Verfahren zum herstellen eines stators für eine elektrische maschine | |
EP3289669B1 (de) | Gehäuselose elektrische maschine | |
DE102015203435B4 (de) | Elektrische Maschine mit Temperatursensor und Stator sowie Verfahren zur Herstellung eines Stators | |
DE102018219819A1 (de) | Elektrische Maschine, insbesondere für ein Fahrzeug | |
DE102018219818A1 (de) | Elektrische Maschine, insbesondere für ein Fahrzeug | |
WO2019002291A1 (de) | Elektrische maschine, insbesondere für ein fahrzeug | |
WO2018211089A1 (de) | Elektrische maschine, insbesondere für ein fahrzeug | |
EP1873887A2 (de) | Verfahren zum Herstellen einer elektrischen Maschine sowie elektrische Maschine, hergestellt nach diesem Verfahren | |
WO2019110278A1 (de) | Elektrische maschine, insbesondere für ein fahrzeug | |
DE102017222610A1 (de) | Rotor sowie Verfahren zum Herstellen eines Rotors | |
DE10261434A1 (de) | Isolierter Statorkern mit Befestigungsmerkmalen | |
DE102006029803A1 (de) | Verfahren zum Herstellen einer elektrischen Maschine sowie elektrische Maschine, hergestellt nach diesem Verfahren | |
WO2019110275A1 (de) | Elektrische maschine, insbesondere für ein fahrzeug | |
EP3884567A1 (de) | Elektrische maschine, insbesondere für ein fahrzeug | |
WO2018211086A1 (de) | Elektrische maschine, insbesondere für ein fahrzeug | |
WO2018211096A1 (de) | Elektrische maschine, insbesondere für ein fahrzeug | |
WO2019002289A1 (de) | Elektrische maschine, insbesondere für ein fahrzeug | |
WO2019110271A1 (de) | Elektrische maschine, insbesondere für ein fahrzeug | |
WO2016050528A1 (de) | Aktivteil als rotor oder stator, ein verfahren zur herstellung eines solchen aktivteils und eine elektrische maschine | |
DE102017208556A1 (de) | Elektrische Maschine, insbesondere für ein Fahrzeug | |
WO2019110276A1 (de) | Elektrische maschine, insbesondere für ein fahrzeug | |
EP3364529B1 (de) | Stator für einen elektromotor | |
EP1556927B1 (de) | Kommutator für eine elektrische maschine und verfahren zu seiner herstellung | |
WO2018211087A1 (de) | Elektrische maschine, insbesondere für ein fahrzeug |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 18804300 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2020526914 Country of ref document: JP Kind code of ref document: A |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: R225 Ref document number: 112018006165 Country of ref document: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 18804300 Country of ref document: EP Kind code of ref document: A1 |