WO2005013459A1 - Elektrische maschine mit läuferkühlung und entsprechendes kühlungsverfahren - Google Patents
Elektrische maschine mit läuferkühlung und entsprechendes kühlungsverfahren Download PDFInfo
- Publication number
- WO2005013459A1 WO2005013459A1 PCT/EP2004/008298 EP2004008298W WO2005013459A1 WO 2005013459 A1 WO2005013459 A1 WO 2005013459A1 EP 2004008298 W EP2004008298 W EP 2004008298W WO 2005013459 A1 WO2005013459 A1 WO 2005013459A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rotor
- bores
- coolant
- pressure ring
- rotor pressure
- Prior art date
Links
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
- H02K1/22—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
- H02K15/02—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
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
-
- 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
- H02K1/26—Rotor cores with slots for windings
- H02K1/265—Shape, form or location of the slots
Definitions
- the present invention relates to a rotor device with a laminated core arrangement, which has a plurality of axial bores for the passage of a coolant, and two rotor pressure rings, between which the laminated core arrangement is axially fixed.
- the present invention relates to an electrical machine with such a rotor device and a corresponding method for cooling a rotor device.
- the cooling air is deflected from an axial direction into a radial direction or vice versa in the groove between the laminated cores.
- the axial spacing of the laminated cores is chosen so that that in the annular space between the laminated cores the flow cross-section available for cooling air is approximately equal to the sum of the flow cross-sections of all the cooling channels which open directly into this annular space.
- this type of counter-cooling is very complex.
- the object of the present invention is therefore to propose a rotor device which can be cooled in opposite directions by a relatively inexpensive construction. A corresponding cooling process is also to be specified.
- a rotor device with a laminated core arrangement, which has a plurality of axial bores for the passage of a coolant, and two rotor pressure rings, between which the laminated core arrangement is axially fixed, at least one of the two rotor pressure rings being designed for targeted coolant guidance through the axial bores ,
- the invention provides a method for cooling a rotor device with a laminated core arrangement, which has a plurality of axial bores for the passage of a coolant, and two rotor pressure rings, between which the laminated core arrangement is axially fixed, by passing the coolant through the axial bores, the coolant by at least one of the two rotor pressure rings is guided through the axial bores.
- the rotor pressure ring or rings can namely be integrated into the air guide device.
- the axial bores are preferably combined into several groups through at least one of the two rotor pressure rings, so that the coolant flow through the bores each Group is essentially the same.
- the coolant flow is improved by grouping the individual bores. For example, two, three or four bores, but also any number, can be combined in each group.
- the targeted coolant guidance can also be designed such that the bores or groups of bores are cooled in opposite directions to one another. This leads to a more uniform cooling of the rotor in the axial direction.
- radii for improving the coolant flow can be attached, in particular cast on, to predetermined edges of the at least one rotor pressure ring.
- the at least one rotor pressure ring can be designed as a fan.
- the rotor pressure ring thus has three functions: compressing the laminated core, guiding the coolant flow and conveying the coolant flow. It is also advantageous if the at least one rotor pressure ring is made in one piece. This means that there are no high manufacturing costs for the rotor pressure ring due to many individual parts, welding or soldering processes. If the at least one rotor pressure ring is also made of nodular cast iron, this leads to weight advantages compared to conventional solutions.
- Two rotor pressure rings of similar shape can be arranged on a common axis offset around a bore or a group of bores in the circumferential direction. In this way, countercurrent cooling can be achieved at low cost.
- FIG. 1 shows a plan view of a rotor pressure ring according to the invention
- 2 shows a section AA through the rotor pressure ring from FIG. 1
- 3 shows a cross section BB through the rotor pressure ring from FIG. 2
- 4 shows a partial cross-sectional view through an electrical machine with rotor cooling according to the invention
- 5 shows a plan view of a rotor pressure ring, which represents the counterpart to the ring according to FIG. 1
- 6 shows a section A - A through the rotor pressure ring from FIG. 5
- FIG. 7 shows a cross section B - B through the rotor pressure ring from FIG. 6.
- rotor pressure ring has an additional functionality, namely that of the coolant through the axial bores of the rotor.
- a correspondingly designed rotor pressure ring 1 is shown in FIG. 1 in its top view.
- Five triangular coolant feedthroughs 2 are arranged on its circumference.
- three bores 3 are indicated with a broken line, which are located in a rotor (not shown) arranged behind the rotor pressure ring 1.
- the triangular bushing 2 thus combines three holes or bores 3 to form a group of holes.
- FIG. 2 shows the coolant bushing 2 in cross section. It can also be seen from this that the contour of the coolant duct 2 is inclined in the radial direction. running. The reason for this is that, for reasons of flow technology, a radially obliquely outward flow channel for the coolant is provided, as will be explained in more detail in connection with FIG. 4.
- FIG. 3 shows a cross section of the rotor pressure ring 1 along the section BB of FIG. 2.
- the coolant guides 2 can now be clearly seen in the section. Since the holes 4 can be seen directly in this view, they are shown with a solid line. The bores in the runner behind it are again indicated with semicolon lines.
- the mode of operation of the rotor pressure ring 1 can be explained in more detail using FIG.
- the rotor pressure ring 1 is arranged on a shaft 7 and holds a rotor laminated core 8 together.
- the bores 3 (lower half of FIG. 4), which are indicated in FIG. 1 and are connected to the coolant feedthrough 2, are located in the rotor laminated core 8.
- the coolant is conveyed from the holes 3 through the coolant duct 2 into a static air outlet opening 9 according to the arrows shown.
- a frustoconical guide element 10 directs the coolant flow from the coolant cable bushing 2 into the air or coolant outlet opening 9.
- FIG. 5 shows such a rotor pressure ring as well as FIG. 1 in plan view. In its position in the circumferential direction, it is shown as it would be mounted as a counterpart to the rotor pressure ring from FIG. 1.
- the bores 104 of the rotor pressure ring counterpart 101 are connected to the bores 3 of the rotor in the coolant duct 2 indicated in FIG. 1.
- the bores 3 'indicated in the coolant feedthroughs 102 by means of a dash-dot line communicate with the bores 4, which are covered by the coolant guide walls 5 of the rotor pressure ring 1 in FIG.
- FIG. 6 shows the section AA through the rotor pressure ring 101. However, the section is offset by 36 ° from that of FIG. 1. The sectional view is identical to that of FIG. 2.
- FIG. 7 again shows a section along the line BB of FIG. 6.
- coolant feedthroughs 102 in triangular shape.
- the tips of the triangles point inwards. This shape has hardly any fan effect.
- three bores 104 are arranged between the triangular coolant feedthroughs 102.
- the holes 3 ' are connected at one end according to FIG 4 to the coolant inlet and at the other end to the coolant outlet. The same applies to the bores 3 at the coolant outlet in FIG. 4. In this way, counter-rotating cooling can be achieved without a great deal of design effort.
- the coolant feedthroughs 2 result in a star-shaped shape of the rotor pressure ring 1. This produces a fan effect which conveys the coolant radially outward in every direction of rotation.
- groups of holes with two, four or more holes or bores can also be formed.
- the walls of the coolant passages can also be formed obliquely outwards, so that a paddle wheel for coolant delivery results at least in one direction of rotation.
- the present invention is also applicable to runners whose cooling bores are arranged in one and three or more rows of bores arranged radially one above the other.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2004800234441A CN1836359B (zh) | 2003-08-01 | 2004-07-23 | 带有转子冷却装置的电机和相应的冷却方法 |
DE502004009592T DE502004009592D1 (de) | 2003-08-01 | 2004-07-23 | Elektrische maschine mit läuferkühlung |
EP04741255A EP1649575B1 (de) | 2003-08-01 | 2004-07-23 | Elektrische maschine mit läuferkühlung |
US10/566,859 US7646119B2 (en) | 2003-08-01 | 2004-07-23 | Electric machine with rotor cooling and corresponding cooling method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10335038A DE10335038A1 (de) | 2003-08-01 | 2003-08-01 | Elektrische Maschine mit Läuferkühlung und entsprechendes Kühlungsverfahren |
DE10335038.1 | 2003-08-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005013459A1 true WO2005013459A1 (de) | 2005-02-10 |
Family
ID=34111784
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/008298 WO2005013459A1 (de) | 2003-08-01 | 2004-07-23 | Elektrische maschine mit läuferkühlung und entsprechendes kühlungsverfahren |
Country Status (5)
Country | Link |
---|---|
US (1) | US7646119B2 (de) |
EP (1) | EP1649575B1 (de) |
CN (1) | CN1836359B (de) |
DE (2) | DE10335038A1 (de) |
WO (1) | WO2005013459A1 (de) |
Cited By (4)
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DE102008064498A1 (de) * | 2008-12-23 | 2010-07-01 | Siemens Aktiengesellschaft | Elektrische Maschine mit radial versetztem Kühlstrom und Kühlverfahren |
WO2013007340A3 (de) * | 2011-07-13 | 2013-10-10 | Voith Patent Gmbh | Tragring für den wickelkopf einer elektrodynamischen maschine |
EP2993762A1 (de) * | 2014-09-02 | 2016-03-09 | ABB Technology AG | Rotoranordnung einer elektrischen Maschine |
WO2017125371A1 (de) * | 2016-01-19 | 2017-07-27 | Continental Automotive Gmbh | Rotorblechpaket für eine elektrische maschine |
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DE102004001852A1 (de) * | 2004-01-13 | 2005-08-04 | Syntics Gmbh | Verfahren und Vorrichtung zum Mischen wenigstens zweier Fluide in einer Mikrostruktur |
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US8513840B2 (en) | 2010-05-04 | 2013-08-20 | Remy Technologies, Llc | Electric machine cooling system and method |
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CN110855043B (zh) * | 2018-08-20 | 2021-12-28 | 东元电机股份有限公司 | 部分遮挡式转子组件 |
US11146133B2 (en) * | 2018-08-30 | 2021-10-12 | General Electric Company | Electric machine with rotor coolant and lubrication distribution system, and systems and methods of cooling and lubricating an electric machine |
DE102019103007A1 (de) * | 2019-02-07 | 2020-08-13 | Schaeffler Technologies AG & Co. KG | Elektrische Maschine mit einem mehrfunktionalen Scheibenelement für einen Rotor |
RU203387U1 (ru) * | 2020-12-16 | 2021-04-02 | Общество с ограниченной ответственностью «ЭТК» | Электрическая машина с охлаждаемым ротором |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008064498A1 (de) * | 2008-12-23 | 2010-07-01 | Siemens Aktiengesellschaft | Elektrische Maschine mit radial versetztem Kühlstrom und Kühlverfahren |
WO2010072496A2 (de) * | 2008-12-23 | 2010-07-01 | Siemens Aktiengesellschaft | Elektrische maschine mit radial versetztem kühlstrom und kühlverfahren |
WO2010072496A3 (de) * | 2008-12-23 | 2011-02-03 | Siemens Aktiengesellschaft | Elektrische maschine mit axialen, radial versetztem kühlstrom und entsprechende methode |
US8686607B2 (en) | 2008-12-23 | 2014-04-01 | Siemens Aktiengesellschaft | Electrical motor having radially offset cooling stream and cooling method |
WO2013007340A3 (de) * | 2011-07-13 | 2013-10-10 | Voith Patent Gmbh | Tragring für den wickelkopf einer elektrodynamischen maschine |
EP2993762A1 (de) * | 2014-09-02 | 2016-03-09 | ABB Technology AG | Rotoranordnung einer elektrischen Maschine |
WO2017125371A1 (de) * | 2016-01-19 | 2017-07-27 | Continental Automotive Gmbh | Rotorblechpaket für eine elektrische maschine |
Also Published As
Publication number | Publication date |
---|---|
DE502004009592D1 (de) | 2009-07-23 |
US7646119B2 (en) | 2010-01-12 |
EP1649575A1 (de) | 2006-04-26 |
CN1836359A (zh) | 2006-09-20 |
DE10335038A1 (de) | 2005-03-10 |
CN1836359B (zh) | 2011-12-14 |
EP1649575B1 (de) | 2009-06-10 |
US20070024130A1 (en) | 2007-02-01 |
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