EP1374369A2 - Cooled primary or secondary part of an electric motor - Google Patents
Cooled primary or secondary part of an electric motorInfo
- Publication number
- EP1374369A2 EP1374369A2 EP02727277A EP02727277A EP1374369A2 EP 1374369 A2 EP1374369 A2 EP 1374369A2 EP 02727277 A EP02727277 A EP 02727277A EP 02727277 A EP02727277 A EP 02727277A EP 1374369 A2 EP1374369 A2 EP 1374369A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- cooling tube
- groove
- cooling
- holding
- receiving area
- 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- Withdrawn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
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
- H02K41/031—Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type
-
- 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
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- 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
- H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- 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
Definitions
- the invention relates to a primary part or secondary part according to the preamble of claim 1, a method for producing such a primary part or secondary part and a form stamp for carrying out said method.
- Synchronous motors are the primary part with the windings, and asynchronous motors, both the primary part and the secondary part can be cooled.
- the invention also relates to rotary motors, but preferably linear motors.
- the cooling tube is dimensioned as a function of the groove cross section in such a way that it can be simply inserted into the groove and comes to rest on the groove base.
- the core of the primary part or secondary part consists of a magnetically conductive material, for example of layered sheets or of a solid material, into which the corresponding grooves are made. In the case of layered sheets, these are punched individually and then joined to form a sheet stack, the grooves being formed. In the case of a solid material, the grooves can be milled out, for example.
- the geometry of the groove and cooling tube is predetermined such that the cooling tubes are arranged with an intermediate air in their assembly position on the groove base with respect to the groove wall. Due to the undefined position of the cooling tubes, the windings above can only contact them linearly and not continuously. As a result, the overall cooling performance or cooling efficiency is comparatively poor.
- the invention offers the advantage of an increased cooling capacity / an increased cooling efficiency with simple manufacture and assembly of a primary part or secondary part.
- the cooling pipe is fixed in its seat in a receiving area of the groove by at least local constriction of the effective groove cross section with respect to the cooling pipe to be inserted.
- the groove cross section in the receiving area has a contour that corresponds at least locally to the outer contour of the cooling tube — viewed in the circumferential direction — with the outer contour of the cooling tube.
- These corresponding contours extend essentially over the length of the cooling tube, ie over the length of the cooling tube over which the cooling tube is inserted in a corresponding groove.
- the cooling tube assumes a predetermined, defined position in the receiving area of the groove, in which the surface contact mentioned is present. On the one hand, this reduces the heat transfer resistance between the magnetically conductive material to be cooled and the tube wall of the cooling tube.
- the air gap between the outer wall of the cooling tube and the inner wall of the receiving area is significantly reduced or completely avoided.
- there is surface contact If - as in the prior art - the cooling tube is relatively loose in the receiving area, its circumference is practically all around surrounded by an air gap which forms a strong barrier to heat conduction.
- the surface contact according to the invention provides a significantly better coupling with regard to heat conduction. This means that the cooling capacity or the cooling efficiency is already significantly increased. Due to the seat of the cooling pipe, which is precisely defined by the groove geometry, e.g. a higher copper fill factor can be achieved by using cables with a larger cable cross-section.
- the cooling tube lies in a defined position in the receiving area, so that the windings can be introduced in such a way that there is also a preferably large-area contact between the underside of the cooling windings and the top side of the inserted cooling tube. This will be discussed in more detail later.
- the shape of the outer wall of the cooling tube corresponds to that of the wall of the receiving area. This means that the curvatures involved - seen over the circumference of the cooling tube - correspond locally, so that an at least local, flat system results.
- the surface contact extends circumferentially or 5 surface contact zone circumferentially practically over the length of the cooling tube with which the cooling tube is inserted into the groove. This avoids the creation of "hot spots" and achieves homogeneous cooling.
- the invention has recognized that a defined heat dissipation over a defined
- the cooling flow or the cooling tubes can also be dimensioned smaller, although a uniform and, above all, sufficient cooling can be ensured.
- the resulting cooling can also be calculated / predicted much more precisely and easily with the invention. According to the above, there is always an uncertainty in the design in the prior art.
- the holding constriction can only be local and, for example, only extend over a certain section in the groove depth direction, which can be passed during insertion, for example, under a pressing force to be applied, so that the cooling tube practically engages. This will also be discussed in more detail later.
- the holding constriction can also practically extend over a large part or the entire groove depth.
- the groove has a slightly smaller width than the corresponding outer diameter of the cooling tube over a large part or over its entire groove depth 3.5.
- the cooling tube sits in the press with a quasi-press fit Pick-up area and is to be inserted under the press-in force through the holding constriction into its seat in the assembly position.
- the cooling pipe is arranged in a defined seat in the receiving area and has the surface contact required for heat conduction.
- the cooling tube Since the cooling tube is fixed in its seat in the receiving area and has local surface contact with the wall of the receiving area, there is a certain frictional connection between the cooling tube and the receiving area. Therefore, in order to minimize the force that is necessary to insert the cooling tube into the receiving area, it is proposed that the cooling tube can pass the local holding constriction when inserted under the press-in force. As a result, the cooling tube can easily be inserted into its receiving area from above in the groove depth direction through the groove opening, the friction force to be overcome being relatively small; namely, the frictional force can only be overcome in the area of the holding constriction, that is to say preferably only locally, as seen in the groove depth direction. A comparatively small distance is thereby achieved, over which the cooling tube must be pressed in or pressed in while overcoming the frictional force.
- the cooling pipe be on the side, i.e. in the longitudinal direction of the slot in the receiving area. It is essential for the invention that the cooling tube is fixed and has the required surface contact. It can thus be easily inserted laterally while maintaining the advantages mentioned above.
- the slot width can be the same size as or larger than the relevant cross-section of the cooling tube, so that, for example, more space can be provided for the windings.
- the holding constriction can be designed as a holding projection. Then it is preferred that the cooling tube is virtually locked in its seat and held / fixed / pressed by the holding projection, so that the surface contact is ensured.
- the holding projection can be formed by a holding web and / or one or more holding lug (s) of one or both groove walls. Opposing retaining webs of the groove walls are preferably provided, which form a catch for the cooling tube.
- the embodiments mentioned have the advantage that the groove width can be larger than the effective groove cross section in the region of the holding projections / holding webs, so that the cooling tube can be inserted very easily into the groove up to the holding projections and only a larger one to overcome the latching force Pressure / press-in force must be applied.
- the cooling tube in its seat in the receiving area can be at least locally pressed against the inner wall of the receiving area by the holding constriction with respect to its outer circumference. Then, for example, a catch is provided which presses the cooling tube in its seat against the relevant zones of the wall of the receiving area. At the same time, however, the cooling pipe is positively held in its seat.
- the cooling tube rests in its seat in the receiving area on the underside of the holding constriction and that the holding constriction there has a contour that corresponds to the contact part of the outer circumference of the cooling tube. Then, on the one hand, the cooling pipe is held in a form-fitting manner and pressed in its seat against the wall of the receiving area, but on the other hand it ensures that there are practically no zones of increased stress in the area of the system at the holding constriction arise. In addition, the surface contact is thereby increased, namely by the relevant plant part of the constriction / cooling tube.
- the top of the cooling tube is embossed with a surface shape which forms a practically flat support for the windings lying above it.
- the surface shape can be stamped before the cooling tube is inserted.
- the cooling tube is preferably deformed in the corresponding manner during the insertion process or at the end of the insertion process. This will be discussed in more detail later. This results in an improvement in heat dissipation, since the heat source - namely the windings - itself partially abuts the cooling tube and thus there is direct heat transfer between the heat source and the cooling tube.
- the support is only partial over the groove width; however, it is preferably practically full-area when viewed over the groove width.
- the invention also relates to a method for producing a primary part or secondary part according to one of claims 1 to 12.
- This method also achieves the object set above and offers a simple and effective production method for such a device. It can be provided that the cooling tube laterally, i.e. is inserted into the receiving area in the longitudinal direction of the slot. This has the advantages of lateral insertion.
- the cooling tube be pressed into the groove with a die corresponding to the groove geometry, the local holding constriction taking into account the cooling tube geometry and the cooling tube material being designed such that the cooling tube can pass through it with only elastic deformation.
- the form stamp corresponds to the groove geometry in such a way that it is to be inserted into the groove opening on the one hand and can be inserted so far that the cooling tube can be moved into its seat and, if necessary, engages.
- the form stamp protrudes as far as necessary into the groove opening with a stamp foot.
- the at least local holding constriction is designed so that the cooling tube when Insertion is only deformed elastically and practically no permanent deformations remain after insertion. Then the cooling tube in its seat is completely undamaged.
- the cooling tube is given a surface shape in its seat in the receiving area, preferably by means of plastic deformation with the shaping stamp.
- the shaping stamp is designed such that it essentially has a negative shape with respect to the surface shape on its underside.
- the underside of the forming die have a geometry which laterally deviates with respect to the holding constriction, so that the holding constriction does not touch when pressed in by the shaped stamp is not damaged.
- the cooling tubes can be designed in the form of a cooling coil.
- the shaped die can be dimensioned such that it only has an immersion rib that corresponds to the groove geometry with respect to the pressing-in process of the cooling tube. This is easily practical in the case of a cooling coil with a cooling tube made of a material which is not too brittle.
- the cooling coil is then merely deflected by a maximum of the cooling tube diameter in relation to adjacent cooling sections when the cooling sections are pressed in, which, in the case of conventional cooling coils, lies in the region of merely elastic deformation. This applies in the event that the cooling section, which is adjacent to the cooling section of the cooling coil in the receiving area, is at least inserted into the groove and bears against the retaining webs.
- the shaping punch has a plurality of immersion ribs which correspond to the groove geometry with respect to the pressing-in process of the cooling tube. Then a smaller number of work steps is required for pressing in / pressing in.
- the pressing can be carried out in only one work step if the number or the arrangement or the geometry of the immersion ribs corresponds to the number or the arrangement or the geometry of the grooves in whose receiving areas a cooling tube is provided.
- This can be used with a conventional cooling coil, but also with a radiator shape in which the cooling sections branch off at right angles from a main cooling line into the grooves and thus deformation in the region of the branches must be avoided.
- FIG. 1 shows a schematic cross-sectional drawing through a secondary part and a primary part of a linear motor
- FIG. 2 shows an enlarged detail from FIG. 1,
- FIG. 3 shows a detailed cross-sectional view of a groove of the primary part of FIG. 1 and FIG. 2 without cooling tube and without windings
- FIG. 4 shows a cross section through a primary part, schematically while the cooling tubes / the cooling tube is / are about to be pressed in / pressed in with a form stamp
- FIG. 5 shows a schematic cross-sectional drawing through a multiple form stamp
- Figure 6 is a schematic cross-sectional drawing through a single form stamp. '
- FIG. 1 schematically shows a cross section through an arm motor 2 with a primary part 1 and a secondary part 31.
- the secondary part 31 essentially consists of a secondary part magnet carrier 33, to which permanent magnets 32 are glued adjacent in the longitudinal direction and in the transverse direction. These permanent magnets 32 interact with the windings 5 of the primary part 1 through which current flows in a predetermined manner.
- the windings 5 lie in slots 4 which are present in the core 3.
- the cooling fluid 7 can be water, oil or a cooling gas, for example.
- the heat generated by the current in the windings 5 is so high - in particular in the case of linear motors, but also in the case of high-performance rotary motors - that the primary part 1 is actively cooled.
- FIG. 2 shows the configuration of slot 4, winding 5 and cooling tube 6 in detail:
- the effective groove cross section 8 (see FIG. 3 further below) is formed by a holding constriction in the form of two holding webs 10, 11 of the respective groove walls 20, 21 located opposite one another at the same point in a holding narrowing region 9 in the groove depth direction 16.
- the holding webs 10, 11 continue - not shown here - in the longitudinal direction 15 of the grooves 4 continuously. This results in a receiving region 12 which is undercut with respect to the grooves 4 and in which the cooling tube 6 is seated.
- the cross-sectional area contact extends practically over the entire part 17 of the outer circumference 17 shown.
- only one reference number 17 has been chosen here.
- the holding webs 10, 11 are arranged - based on the depth direction 16 - according to the present definition below the windings 5. They are practically "buried” under the windings 5 in the assembly configuration. As a result, the cooling tube 6 sits in a defined and predetermined manner in the receiving area 12.
- the cooling tube 6 lies with the corresponding contact zones 23 of its outer circumference on the underside of the holding webs 10, 11.
- the geometry and arrangement of the holding webs 10, 11 is selected such that the cooling tube in this seat is pressed against the inner wall 19 of the receiving area 12. This means that the cooling tube 6 is held in the undercut receiving area 12 with slight pressure.
- the pressure is selected by the appropriate dimensioning and arrangement of the holding webs 10, 11 taking into account the cooling tube geometry and the cooling tube material.
- the holding webs 10, 11 have a contour that corresponds locally to the outer circumference 17 of the cooling tube 6, so that the corresponding pressure is exerted without deforming or damaging the cooling tube 6 too much.
- the retaining webs 10, 11 have a practically rounded contour over their depth profile, so that even when pressed in / pressed in through this constriction, the cooling tube 6 is only elastically deformed, but is not plastically deformed, scratched or damaged. This will be discussed in more detail later.
- the cooling tube 6 has a flattened, practically flat shape on its upper side 24.
- This shape corresponds practically to a flattening 25 of the upper side 24 of the cooling tube 6 over the longitudinal extent of the cooling tube 6 (seen in the longitudinal direction 15 of the grooves 4), so that a practically homogeneous contact is also ensured over the longitudinal extent.
- the groove insulation 34 is usually so thin that the heat conduction is at most slightly impaired. Through the flat, partial or full surface System a very good heat transfer contact and thus a very low heat transfer resistance between the flattening 25 and the support 26 of the windings 5 is achieved.
- the groove geometry is shown in detail in FIG. 3.
- One slot width d 2 plus the width of an adjacent tooth corresponds to a slot pitch ⁇ n .
- the groove pitch ⁇ n can be predetermined by the motor parameters, so that the groove geometry according to the invention is to be designed in accordance with the required motor parameters. This means that - with a predefined or restricted groove width d 2, there should be an effective groove cross section 8 which is matched to this and to the cooling tube.
- the diameter d ⁇ of the receiving area 12 is essentially predetermined by the requirement of the corresponding contact surfaces of the cooling tube 6 and the inner wall 19 of the receiving area 12.
- the total height h tot is composed essentially of the height of the receiving area 12 plus the remaining portion of the slot depth for the windings
- FIG. 3 shows an example of a radius of curvature R d in the region of the holding webs 10, 11; it is important here that these holding webs 10, 11 - in order to ensure that the cooling tube 6 is pressed in gently - is rounded off in the region above (in the drawing, therefore, below) the highest point of the holding webs 10, 11, and in Tip area of the holding webs 10.11 is rounded.
- FIG. 4 shows a schematic cross section through a primary part 1, which is being fitted with the cooling tube 6.
- the cooling tube 6 is partially inserted into the groove 4 as seen in the groove depth direction 16 and has not yet reached the holding webs 10, 11.
- Immersion ribs 37 has, as grooves 4 are provided with inserted cooling tubes 6.
- Insert position 35 can be pressed / pressed.
- the form punch 27 consists of the immersion ribs 37 just mentioned, which correspond to the groove geometry insofar as they are somewhat narrower than the groove width d. However, they are preferably at least as high as the groove depth up to the position of the holding webs 10, 11. They are elongated in the longitudinal direction 15 and extend practically over the entire length of the insertion sections of the cooling tubes 6. This prevents the cooling tubes from being used unevenly or even tilted.
- the cooling tubes 6 can pass through the holding constriction 10, 11 in the groove depth direction 16 and, as it were, engage in their receiving area 12 when a sufficient press-in force / press-in force is exerted with the die 27.
- a multiple stamp 27 is shown schematically in FIG. 5, which - like all the exemplary embodiments shown, is also shown interrupted by primary part 1 and secondary part 31 of linear motor 2.
- the immersion ribs 37 have a shape 30 on the underside 29 of the die 27 which essentially has a shape 30 which is negative with respect to the surface shape 25 - in the exemplary embodiment shown a flat shape.
- This form 30 is therefore also flat. However, this only relates to the central part of the underside 22 or the form 30.
- the rib width 41 is at least slightly smaller than the groove width d 2 , so that the immersion ribs 37 can dip into the grooves 4 without tilting and without inhibition.
- the forming die can be inserted into the groove with at least one immersion rib, the immersion rib narrowing at least in sections, in particular towards a stamp base.
- the rib width 41 is also dimensioned such that - especially in the case of a multiple stamp 27 - taking into account possible changes in position with regard to the parallelism between the stamp base 36 and the primary part 1 or their relative tilting, an essentially uninhibited immersion of the immersion ribs is still ensured.
- the material of the immersion ribs 37 or of the entire film stamp 27 can also be selected accordingly with a low coefficient of friction.
- steel eg St37 or high-strength steel
- Teflon coating can be used.
- the width 42 of the space 43 is at least slightly larger than the tooth width.
- FIG. 6 shows a single stamp 28 which is able to press individual cooling tubes 6 or sections of cooling tubes 6 individually into a groove 4 provided for this purpose.
- a single immersion rib 37 is provided, which can be immersed in succession in a respective groove 4 in order to press in the cooling tube 6.
- a plurality of individual punches 28 can also be provided, which simultaneously equip different grooves 4 with the cooling tube 6.
- the side webs 38 on the respective inner side 40 quickly fall off toward the center of the immersion rib 37, so that the remaining space for the surface shape 30 for embossing the shape according to claim 12 is as large as possible and can largely be used for embossing the shape ,
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10115186 | 2001-03-27 | ||
DE10115186A DE10115186A1 (en) | 2001-03-27 | 2001-03-27 | Cooled primary or secondary part of an electric motor |
PCT/DE2002/001121 WO2002078150A2 (en) | 2001-03-27 | 2002-03-27 | Cooled primary or secondary part of an electric motor |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1374369A2 true EP1374369A2 (en) | 2004-01-02 |
Family
ID=7679320
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02727277A Withdrawn EP1374369A2 (en) | 2001-03-27 | 2002-03-27 | Cooled primary or secondary part of an electric motor |
Country Status (5)
Country | Link |
---|---|
US (1) | US6975051B2 (en) |
EP (1) | EP1374369A2 (en) |
JP (1) | JP4167902B2 (en) |
DE (1) | DE10115186A1 (en) |
WO (1) | WO2002078150A2 (en) |
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JPWO2004019468A1 (en) * | 2002-08-21 | 2005-12-15 | トヨタ自動車株式会社 | Vehicle motor |
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EP1416609A3 (en) * | 2002-10-28 | 2006-12-06 | Loher GmbH | Electrical machine with stator internal cooling ducts |
WO2006011614A1 (en) * | 2004-07-25 | 2006-02-02 | Tsheatronics Co., Ltd. | Linear or curved mobile motor and its radiator |
DE102006005316B4 (en) * | 2006-02-06 | 2020-03-26 | Siemens Aktiengesellschaft | Cooling device for an electrical machine, electrical machines with such a cooling device, dynamo sheet and manufacturing processes for such electrical machines |
DE102006044963B3 (en) | 2006-09-22 | 2008-06-19 | Siemens Ag | Stator for an electric machine with liquid cooling |
DE102006044965A1 (en) * | 2006-09-22 | 2008-04-17 | Siemens Ag | Electric machine's e.g. electric motor, stator, has axially running channels that are inserted into cooling pipes, and units, where cooling pipes are pressed at sheet metals by section-wise and/or punctual pressing |
US20090033160A1 (en) * | 2007-07-31 | 2009-02-05 | Daniel Mueller | Electric motor for hybrid or electric vehicle |
DE102007062540A1 (en) | 2007-12-20 | 2009-06-25 | Sycotec Gmbh & Co. Kg | Electric motor or generator |
EP2182570A1 (en) * | 2008-10-28 | 2010-05-05 | Siemens Aktiengesellschaft | Arrangement for cooling of an electrical machine |
EP2320080A1 (en) * | 2009-11-06 | 2011-05-11 | Siemens Aktiengesellschaft | Arrangement for cooling of an electrical generator |
EP2398129B1 (en) * | 2010-06-17 | 2012-12-26 | Siemens Aktiengesellschaft | A generator, in particular for a wind turbine |
EP2413475A1 (en) * | 2010-07-30 | 2012-02-01 | Ewt Ip B.V. | Cooling system for generator |
US8816546B2 (en) * | 2010-09-23 | 2014-08-26 | Northern Power Systems, Inc. | Electromagnetic rotary machines having modular active-coil portions and modules for such machines |
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CN102510173A (en) * | 2011-11-09 | 2012-06-20 | 哈尔滨泰富实业有限公司 | Cooling structure of flat permanent-magnet linear water-cooling motor |
CN104247233B (en) | 2012-03-26 | 2018-06-05 | 富士机械制造株式会社 | Linear electronic device |
JP6149395B2 (en) * | 2012-12-25 | 2017-06-21 | 株式会社デンソー | Rotating electric machine for vehicles |
EP3032709B1 (en) * | 2013-08-05 | 2018-11-07 | Mitsubishi Electric Corporation | Permanent magnet embedded type rotating electric machine |
JP6389898B2 (en) * | 2014-01-22 | 2018-09-12 | エーエスエムエル ネザーランズ ビー.ブイ. | Coil assembly, electromagnetic actuator, stage positioning apparatus, lithographic apparatus, and device manufacturing method |
DE102017208546A1 (en) | 2017-05-19 | 2018-11-22 | Mahle International Gmbh | Electric machine, in particular for a vehicle |
DE102017208564A1 (en) * | 2017-05-19 | 2018-11-22 | Mahle International Gmbh | Electric machine, in particular for a vehicle |
DE102017208566A1 (en) * | 2017-05-19 | 2018-11-22 | Mahle International Gmbh | Electric machine, in particular for a vehicle |
US10804756B2 (en) * | 2017-07-25 | 2020-10-13 | Toshiba International Corporation | Stators comprising air flow slots with adjacent winding slots |
CN109256880A (en) * | 2018-11-20 | 2019-01-22 | 珠海格力电器股份有限公司 | Linear motor rotor and linear motor |
CN111384790A (en) * | 2018-12-28 | 2020-07-07 | 福特全球技术公司 | Stator for motor and motor |
JP7364859B2 (en) * | 2019-06-25 | 2023-10-19 | シンフォニアテクノロジー株式会社 | motor |
WO2021149131A1 (en) * | 2020-01-21 | 2021-07-29 | 三菱電機株式会社 | Stator and rotating electrical machine using the same |
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2001
- 2001-03-27 DE DE10115186A patent/DE10115186A1/en not_active Withdrawn
-
2002
- 2002-03-27 WO PCT/DE2002/001121 patent/WO2002078150A2/en active Application Filing
- 2002-03-27 JP JP2002576076A patent/JP4167902B2/en not_active Expired - Fee Related
- 2002-03-27 EP EP02727277A patent/EP1374369A2/en not_active Withdrawn
- 2002-03-27 US US10/472,793 patent/US6975051B2/en not_active Expired - Fee Related
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Title |
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See references of WO02078150A2 * |
Also Published As
Publication number | Publication date |
---|---|
JP2004522395A (en) | 2004-07-22 |
WO2002078150A3 (en) | 2002-11-07 |
WO2002078150A2 (en) | 2002-10-03 |
JP4167902B2 (en) | 2008-10-22 |
US6975051B2 (en) | 2005-12-13 |
US20040135441A1 (en) | 2004-07-15 |
DE10115186A1 (en) | 2002-10-24 |
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