EP3210284A2 - Fluidgekühltes gehäuse für eine elektrische maschine - Google Patents
Fluidgekühltes gehäuse für eine elektrische maschineInfo
- Publication number
- EP3210284A2 EP3210284A2 EP15763247.2A EP15763247A EP3210284A2 EP 3210284 A2 EP3210284 A2 EP 3210284A2 EP 15763247 A EP15763247 A EP 15763247A EP 3210284 A2 EP3210284 A2 EP 3210284A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- wall
- webs
- sealing device
- sealing
- 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- Withdrawn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
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
- H02K9/197—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil in which the rotor or stator space is fluid-tight, e.g. to provide for different cooling media for rotor and stator
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/104—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure
- F16J15/106—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure homogeneous
-
- 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
- H02K5/06—Cast metal casings
-
- 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
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
-
- 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 housing with fluid cooling for an electrical machine and an electrical machine with a fluid-cooled housing.
- cooling devices in the form of a cooling jacket are formed in a housing of the electrical machine, so that the housing
- Cooling function takes over.
- Such cooling jackets can be about as
- the housing may be formed as a hollow cylindrical extruded part having a plurality of channels open to both end sides.
- a bearing plate may be provided as a cover on each end face of the housing, which may have Umlenknuten, which connect the channels with each other and can deflect a cooling fluid between the channels.
- Umlenknuten which connect the channels with each other and can deflect a cooling fluid between the channels.
- a complicated sealing device may be required, which can reliably prevent leakage of cooling fluid from the housing. Accordingly, a manufacture of such a housing can be relatively complicated and expensive.
- a cooling surface can be increased and / or a Flow rate of the cooling fluid can be increased. This can
- a meander-shaped cooling channel may be formed in the housing, as described for example in DE 10 2012 215 018 AI.
- Embodiments of the present invention may advantageously enable to provide a low-cost, compact and sealed housing with an efficient cooling device for an electric machine.
- a housing for an electrical machine such as an electric motor or a generator
- the housing has an inner wall and an outer wall which are concentric with each other and spaced apart in a radial direction.
- the housing has a sealing device, which is arranged on an end face of the housing.
- the housing according to the invention is characterized in particular by the fact that the sealing device has a ring-shaped design
- Umlenksteg which protrudes in an axial direction of the housing of the sealing element and is at least partially disposed between the inner wall and the outer wall, wherein the
- Umlenksteg is adapted to lead or divert a cooling fluid in the cavity and / or a flow resistance for the cooling fluid
- the sealing device with the annular sealing element can thus provide a comprehensive and reliable sealing of the housing in the radial and in the axial direction. Furthermore, the sealing device can simultaneously advantageously provide a deflection function of the cooling fluid, so that a sufficiently high flow of cooling fluid through the housing and, consequently, efficient cooling with high heat transfer from the electric machine to the cooling fluid can be ensured.
- the housing be made compact and inexpensive to manufacture without a
- sealing functions can be integrated with respect to an environment of the housing and an inlet and an outlet for the cooling fluid and their seal in the sealing device.
- the axial direction may designate a longitudinal direction of extension of the housing, and the radial direction may denote a direction orthogonal to the axial direction.
- the sealing element and the deflection web are integrally formed.
- the sealing device with sealing element and deflecting web made of plastic in an injection molding process or made of metal.
- a one-piece design of the sealing device can reduce production costs and maintenance by reducing components.
- the sealing device has a plurality of deflecting webs which along a circumference of the sealing device
- Sealing element are arranged spaced apart in the circumferential direction and protrude in the axial direction finger-like from the sealing element.
- Cavity of the housing be directed so that so-called dead water areas can be avoided, in which, for example, air bubbles can accumulate. Overall, such an efficiency of cooling can be increased.
- spaced apart guide webs are arranged between the inner and the outer wall in the circumferential direction, which extend along the axial direction of the housing, wherein the guide webs are adapted to guide the cooling fluid in the cavity, ie in a preferred To direct flow directions.
- the flow of the cooling fluid can be suitably deflected in addition to the deflection webs, so that a cooling efficiency can be further increased.
- the guide webs can be made approximately by an extrusion process and in one piece with the inner and / or the outer wall be educated. Due to the manufacturing process, the guide webs can therefore extend over at least 20%, preferably at least 50%, of a longitudinal extent of the walls.
- the guide webs may be attached as a separate component on the inner and / or outer wall, such as glued or welded, be.
- the deflection web is the
- the deflection web can adjoin the guide web and / or rest flush therewith.
- the sealing device has a plurality of deflecting webs, which in each case aligned with one of
- the cooling fluid can be deflected or guided in a complex deflection geometry for a further increase of the cooling efficiency.
- the housing has a further sealing device with a further sealing element and at least one further deflection web, wherein the sealing device and the other
- the cooling fluid can advantageously be deflected alternately parallel and antiparallel to the axial direction, so that a meandering flow of the cooling fluid can be realized in the housing without dead water areas and heat can be dissipated efficiently.
- the sealing device has a plurality of deflecting webs and the further sealing device has a plurality of further deflecting webs, wherein between the inner and the outer wall in the circumferential direction spaced apart guide webs are arranged, which extend along the axial direction.
- one of the deflection webs and one of the further deflection webs are arranged in alignment with one of the guide webs.
- the remaining deflecting webs and the other further deflecting webs are each arranged alternately on opposite sides of the housing in alignment with one of the other guide webs, so that the deflecting webs and the guide webs have a
- Form meandering cooling channel in the cavity is on the annular
- Sealing element at least one on an inner circumference and / or a
- the housing can be produced inexpensively as a double-walled housing with integrally formed on the inner and / or outer wall guide webs in a few steps.
- Another aspect of the invention relates to an electric machine, such as an electric motor or a generator, having a housing as described above and described below.
- the electric machine or the housing may further each have a bearing plate as a kind of cover on each end face of the housing, wherein the sealing device can also provide a tight connection between the end shields and other components of the housing in an advantageous manner.
- FIG. 1 shows a section through a part of a housing according to a
- Embodiment of the invention. 2A, 2B and 2C each show a section through a part of a housing according to a further embodiment of the invention.
- Fig. 3 shows an electric machine according to an embodiment of the invention.
- Fig. 1 shows a section through a part of a housing 10 for an electric machine according to an embodiment of the invention.
- the cut runs orthogonal to an axial direction or orthogonal to a
- the housing 10 is designed as a double-walled, hollow-cylindrical housing with an inner wall 12 and an outer wall 14, which are arranged concentrically to each other and spaced apart in a radial direction, so that in the radial direction through the walls 12, 14 limited cavity 16 to Fluid cooling of the electric machine is formed.
- the cavity 16 may be filled with a cooling fluid, for example with water and / or with another liquid medium.
- the housing with the inner wall 12 and the outer wall 14 may for example be produced in one piece or formed in an extrusion process. Also, the inner wall 12 and the outer wall 14 may be locally bonded together as separate components and / or welded.
- the guide webs 18 may be integrally formed with the inner wall 12 and / or the outer wall 14 or attached as separate components on the inner wall 12 and / or the outer wall 14, for example glued and / or welded, be.
- the guide webs can be about at least 20%, preferably at least 50% or at least 80%, one
- Circumferential direction by two directly adjacent guide webs 18 and in the radial direction by the inner wall 12 and the outer wall 14 are limited. Next are on the outside of the outer wall 14 more
- Fastening devices 20 arranged so that on each end face of the housing 10, a lid, such as a bearing plate, for example by means of a screw and / or rivet connection can be fastened.
- the fastening devices 20 can be arranged in the region of the guide webs 18 and / or lying therebetween.
- FIGS. 2A, 2B and 2C each show a section through part of a housing 10 for an electric machine according to another embodiment of the invention.
- the housing 10 has a sealing device 24 on a first end face 22 and a further sealing device 26 on a second end face 23.
- the sealing devices 24, 26 each have an annular sealing element 28 which sealingly seals between the inner wall
- a cylindrical seat such as by turning, can be introduced on the front side on the inner and / or outer wall 12, 14, so that the sealing element 28 is received in a positive fit in a press fit.
- each of the sealing devices 24, 26 has a plurality of in
- the deflection webs 30 may have a rectangular, cuboidal, round or any differently configured cross-section.
- For storage and / or fixation may be provided on the inner wall 12 and / or the outer wall 14 in the region of the end faces 22, 23 cooperatively designed with an outer contour of the Umlenkstege recesses 30 in which the Umlenkstege 30 may be at least partially included.
- Each of the baffles 30 is disposed in alignment with one of the guide ribs 18 and adapted to guide and / or deflect the cooling fluid in the cavity 16, as described in greater detail below.
- the deflecting webs 28 each adjoin one of the guide webs 18 and / or rest flush therewith, so that a certain flow resistance to
- the deflecting webs 30 may each rest against the inner and / or the outer wall 12, 14 or be spaced from at least one of the walls 12, 14. Overall, the sealing device 24, 26 is thus received between the inner and the outer wall 12, 14, wherein the
- Sealing element 28 for sealing with a press fit sealingly received between the walls 12, 14 and the deflecting webs 30 respectively
- Direction measured thickness of the deflecting webs 30 is less than or equal to a dimensioned in the radial direction thickness of the sealing element 28.
- the deflecting webs 30 and the sealing element 28 are designed in one piece.
- the deflecting webs 30 and the sealing element 28 can also be fastened together as separate components.
- the baffles 30 may be introduced as pins or pin members between the inner wall 12 and the outer wall 14 and by the sealing element 28 and / or a stopper element on at least one of the inner or the outer
- Wall 12, 14 to be fixed in the axial direction.
- sealing devices 24, 26 made of an elastic
- each sealing element 28 is on each sealing element 28 at a
- the sealing lips 32a, 32b may be made, for example, of plastic, rubber and / or silicone and glued to the sealing element 28 and / or welded. Also, the sealing lips 32 a, 32 b may be formed integrally with the sealing element 28. Furthermore, in the inner and / or the outer wall 12, 14 with the sealing lips 32a, 32b cooperatively designed depressions may be provided, in which the sealing lips 32a, 32b may be at least partially received.
- At least one insertion seal for example in the form of an O-ring, and / or at least one sprayed onto the sealing element 28 and / or on the inner circumference and / or an outer circumference of the sealing element 28 may be provided on the sealing element 28 applied seal can be provided.
- the sealing element 28 may at least partially be bonded and / or welded to the housing 10 or to the inner wall 12 and / or the outer wall 14.
- the lid 34 may, for example, as
- End shields be executed and each with a page on a
- the housing 10 has an inlet 36 and an outlet 38 for
- Cooling fluid which in each case in the outer wall, approximately in the form of
- the inlet 36 and the outlet 38 can also be integrated into the front side of one of the sealing elements 24, 26.
- a pumping device having a cooling line may be disposed at the inlet 36 and / or the outlet so that cooling fluid may be delivered into and / or out of the cavity 16 of the housing. Also, at the inlet 36 and / or the outlet 38
- the cooling fluid can take a course as described below through the cavity 16 of the housing. At that guide web 18 of the
- Housing 10 which is arranged between the inlet 36 and the outlet 38, is located in the region of the end face 22 a deflection web 30 of the
- the electric machine 50 has a housing 10 with a cover 34 on each end face 22, 23 and a shaft 52 rotatably mounted in the covers 34.
- the electric machine 50 may be about an electric motor or a
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Motor Or Generator Cooling System (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Power Steering Mechanism (AREA)
- Motor Or Generator Frames (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014221574 | 2014-10-23 | ||
PCT/EP2015/069942 WO2016062440A2 (de) | 2014-10-23 | 2015-09-01 | Fluidgekühltes gehäuse für eine elektrische maschine |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3210284A2 true EP3210284A2 (de) | 2017-08-30 |
Family
ID=54106324
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15763247.2A Withdrawn EP3210284A2 (de) | 2014-10-23 | 2015-09-01 | Fluidgekühltes gehäuse für eine elektrische maschine |
Country Status (5)
Country | Link |
---|---|
US (1) | US10680497B2 (de) |
EP (1) | EP3210284A2 (de) |
CN (1) | CN107078597B (de) |
DE (1) | DE102015220509A1 (de) |
WO (1) | WO2016062440A2 (de) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017101743A1 (de) * | 2017-01-30 | 2018-08-02 | Pierburg Gmbh | Aktuatoranordnung für eine Verbrennungskraftmaschine |
WO2019171535A1 (ja) * | 2018-03-08 | 2019-09-12 | 日産自動車株式会社 | 回転電機及び回転電機の製造方法 |
DE102019204597A1 (de) | 2018-04-09 | 2019-10-10 | Robert Bosch Gmbh | Gehäuse einer elektrischen Maschine |
DE102018212142A1 (de) | 2018-07-20 | 2020-01-23 | Em-Motive Gmbh | Gehäuseeinrichtung |
CN110912321A (zh) * | 2018-09-17 | 2020-03-24 | 舍弗勒技术股份两合公司 | 用于冷却装置的冷却水套及用于电机的冷却装置 |
DE102018216954A1 (de) | 2018-10-02 | 2020-04-02 | Robert Bosch Gmbh | Modulares Kühlkanalgehäuse und Verfahren zum Herstellen eines modularen Kühlkanalgehäuses |
DE102019202760A1 (de) | 2019-02-28 | 2020-09-03 | Rolls-Royce Deutschland Ltd & Co Kg | Dichtmanschette für einen Stator einer elektrischen Maschine |
DE102019206002A1 (de) | 2019-04-26 | 2020-10-29 | Robert Bosch Gmbh | Gehäuse einer elektrischen Maschine mit optimiertem Dichtungsring |
DE102019210308A1 (de) * | 2019-07-11 | 2021-01-14 | Robert Bosch Gmbh | Elektrische Maschine mit gekühlten Stromschienen |
DE102019211440A1 (de) * | 2019-07-31 | 2021-02-04 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Motorgehäuse und Verfahren zur Herstellung eines Motorgehäuses |
DE102019211523A1 (de) * | 2019-08-01 | 2021-02-04 | Zf Friedrichshafen Ag | Kühlfluidführungsanordnung zum Kühlen eines Rotors einer elektrischen Maschine |
EP3772800A1 (de) * | 2019-08-06 | 2021-02-10 | Koninklijke Philips N.V. | Wasserdichte und steife motoraufhängung |
DE102019216579A1 (de) * | 2019-10-28 | 2021-04-29 | Volkswagen Aktiengesellschaft | Hybrides Leichtbaugehäuse für einen wassergekühlten Elektromotor |
DE102019133548A1 (de) * | 2019-12-09 | 2021-06-10 | Valeo Siemens Eautomotive Germany Gmbh | Statorgehäuse für eine elektrische Maschine, elektrische Maschine für ein Fahrzeug und Fahrzeug |
CN112467940B (zh) * | 2019-12-24 | 2022-11-25 | 长城汽车股份有限公司 | 电机冷却结构、驱动组件及车辆 |
KR20210096863A (ko) * | 2020-01-29 | 2021-08-06 | 엘지전자 주식회사 | 모터 하우징 어셈블리 |
DE102021122359B4 (de) | 2021-08-30 | 2024-05-23 | Muhr Und Bender Kg | Gehäuseanordnung und elektrische Maschine |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3127530A (en) * | 1962-02-21 | 1964-03-31 | Fostoria Corp | Motor driven pumps |
DE19624519A1 (de) | 1996-06-20 | 1998-01-02 | Bosch Gmbh Robert | Flüssigkeitskühlung von elektrischen Maschinen |
WO2006106086A1 (de) | 2005-04-07 | 2006-10-12 | Siemens Aktiengesellschaft | Elektrische maschine mit einem gehäuse zur flüssigkeitskühlung |
JP5167855B2 (ja) * | 2008-02-21 | 2013-03-21 | Jfeスチール株式会社 | 電動機固定子の固定方法 |
CN101951069A (zh) * | 2010-09-09 | 2011-01-19 | 上海中科深江电动车辆有限公司 | 电机壳体冷却水路结构 |
JP5739172B2 (ja) * | 2011-01-20 | 2015-06-24 | ナブテスコ株式会社 | モータおよび航空機の舵面駆動アクチュエータ |
US8991621B2 (en) * | 2011-08-12 | 2015-03-31 | Flsmidth A/S | Energy diffusing wear ring and methods thereof |
DE102012215018A1 (de) * | 2012-08-23 | 2014-02-27 | Robert Bosch Gmbh | Gehäuse für eine elektrische Maschine mit mäanderförmigem Kühlkanal und Leitgeometrien |
DE102012218196A1 (de) * | 2012-10-05 | 2014-04-10 | Robert Bosch Gmbh | Neuartiges Gehäusekonzept für eine elektrische Maschine |
DE102013100028A1 (de) * | 2013-01-03 | 2014-07-03 | Harting Electric Gmbh & Co. Kg | Umweltdichtes Steckverbindergehäuse |
US9360140B2 (en) * | 2013-12-10 | 2016-06-07 | GM Global Technology Operations LLC | Sealing device for a vehicle |
-
2015
- 2015-09-01 US US15/519,871 patent/US10680497B2/en not_active Expired - Fee Related
- 2015-09-01 WO PCT/EP2015/069942 patent/WO2016062440A2/de active Application Filing
- 2015-09-01 CN CN201580057410.2A patent/CN107078597B/zh active Active
- 2015-09-01 EP EP15763247.2A patent/EP3210284A2/de not_active Withdrawn
- 2015-10-21 DE DE102015220509.6A patent/DE102015220509A1/de not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
None * |
Also Published As
Publication number | Publication date |
---|---|
CN107078597A (zh) | 2017-08-18 |
US10680497B2 (en) | 2020-06-09 |
CN107078597B (zh) | 2019-05-31 |
US20170244305A1 (en) | 2017-08-24 |
WO2016062440A3 (de) | 2016-07-21 |
DE102015220509A1 (de) | 2016-04-28 |
WO2016062440A2 (de) | 2016-04-28 |
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