WO2002033808A1 - Blech-lamellen-paket - Google Patents
Blech-lamellen-paket Download PDFInfo
- Publication number
- WO2002033808A1 WO2002033808A1 PCT/DE2001/003169 DE0103169W WO0233808A1 WO 2002033808 A1 WO2002033808 A1 WO 2002033808A1 DE 0103169 W DE0103169 W DE 0103169W WO 0233808 A1 WO0233808 A1 WO 0233808A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sheet
- sheet metal
- layer
- plate
- heat
- 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
- H02K1/04—Details of the magnetic circuit characterised by the material used for insulating the magnetic circuit or parts thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
- H02K9/223—Heat bridges
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
- H02K9/227—Heat sinks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
Definitions
- the invention relates to a sheet-metal laminate package, in particular for electrical machines and devices.
- cooling systems are known for cooling electrical machines, which are used depending on the application.
- an open design is often chosen for cooling. Due to the open design, an air flow can be led through the machine past the active parts, which represent the heat sources of the machine.
- the heat sources are usually the windings in which the greatest losses occur.
- the cooling air flow enters the machine and flows directly past the windings and the laminated core and absorbs the heat. When exiting the machine, the cooling air sticks with the heat and senses it from the surroundings.
- the cooling air stiOm can be fanned by natural convention or by a fan.
- the machine is of a closed design, it is not possible to guide the cooling air past the active components through the machine. With these machines. the heat of the windings is dissipated to the housing via the stator.
- an internal cooling circuit is also provided, in which gas for cooling circulates. Internal cooling circuits are complex to manufacture.
- the invention is based on the object of creating a sheet-metal laminate package for an electrical machine, so that the cooling of the machine is improved.
- the object is solved by the features of claim 1.
- the essence of the invention is to provide heat-conducting layers between the sheet-metal fins of a sheet-metal-disk pack, the thermal conductivity of which is greater than the thermal conductivity of the sheet-metal fins.
- FIG. 1 is a plan view of a sheet-metal laminate package of a machine stand according to a first embodiment
- FIG. 2 shows a cross-sectional illustration of the laminated laminated core according to FIG. 1,
- Fig. 3 is a cross-sectional view along the section line 111-111 in Fig. 1 and
- Fig. 4 is a cross-sectional view of a laminated laminated core according to a second embodiment.
- laminated laminations 1 are used, which are partially wrapped by winding wire.
- the winding wire through which current flows creates magnetic fields that are partially or completely felt in the sheet-plate package 1.
- a typical sheet-metal plate pack 1 is shown. This is the stationary machine stand of an electric motor.
- the individual sheet metal lamellae 2 are designed in the form of annular disks and have grooves 3 which extend radially outwards and are distributed over the circumference and are arranged congruently with respect to the various sheet metal lamellae 2.
- the slots 3 receive the winding wire, which is felt at the two ends 4 and 5 at the two ends, from one slot 3 into the next.
- the individual sheet metal lamellae 2 consist of steel sheets which are alloyed with silicon to reduce the specific losses.
- the specific thermal conductivity of the sheet metal fins 2, which are also referred to as dynamo sheets, is typically in the range from 20 to 30 W / km.
- the sheet metal lamellae 2, which lie flat on top of one another and are connected to one another, for example by gluing, are insulated from one another, which is often achieved by requesting a lacquer layer.
- a heat-conducting plate 6 designed as a heat-conducting layer is arranged at regular intervals between the sheet-metal fins 2. The plate 6 is arranged flat between the sheet-metal fins 2 and in direct contact with them.
- the plate 6 consists of a material that has a greater thermal conductivity than the material of the sheet metal lamellae 2.
- a particularly suitable material for this is aluminum.
- Aluminum has a very good thermal conductivity of 230 W / km.
- other materials with high thermal conductivity can also be used, such as copper, silver and gold.
- five sheet metal lamellae 2 are separated from a plate 6. The spacing of the plates 6 from one another is determined as a function of the desired thermal conductivity of the laminated laminated core 1 and the magnetic fields to be guided therein. chooses.
- the theoretical conductivity of the sheet-lamella package 1 is doubled in comparison to a sheet-lamella package which consists only of sheet metal lamellae 2 exists.
- the plates 6, which consist of ⁇ non-magnetic material, reduce the iron fill factor, ie the proportion of magnetic iron in a sheet-metal plate pack 1 per unit volume.
- the good electrical conductivity of the plates 6 does not increase the eddy strength of the corresponding electrical machine, since the magnetic flux is not felt in the aluminum, but in parallel in the dynamo plate. If a magnetic flux occurs in the axial direction and thereby cause eddy currents in the plate 6, then radial slots can follow in the plate 6.
- kind of a comb can be provided to reduce the loss of vertebrae. This is particularly important in the case of the plates 6 arranged at the ends 4 and 5, since axial field components can also occur there under the winding heads as a result of the winding heads being flooded.
- cover plates 7 designed as heat-conducting layers are provided, which are thicker than the laminated panels 6. Often, in the case of a laminated laminated core 1, it is sufficient to increase the thermal conductivity. that has no plates 6, only to provide cover plates 7 at both ends 4 and 5.
- the cover plates 7 can have rounded corners 8 between the grooves 3, so that the winding wire can be guided around to the cover plate 7 without damage and at the same time with great contact and thus great heat transfer. It is also possible to provide edges 9 which spring back relative to the grooves 3 in order to simplify the wrapping of the cover plate 7 by winding wire.
- the dik- keren cover plates 7 at the same time increase the stability of the laminated plate package 1.
- the heat is removed from the loss locations to the heat sink by heat conduction.
- the heat sink can e.g. be formed by a housing with water cooling.
- the heat therefore flows from the windings over the insulation layers of the winding wires into the laminated laminated core, which often have tooth-shaped projections.
- the heat then flows from these teeth through the stator yoke into the housing, where it is removed by the coolant. Teeth are a bottleneck when it comes to heat conduction. A large proportion of the heat lost is transported through the teeth. With the sheet metal slats.
- Packages 1 the overall thermal conductivity of package 1 is greatly increased, so that the heat from package 1 and in particular from the teeth can be better dissipated to the stator yoke and to the housing. This results in a good thermal connection of the windings to the housing. In this way, either the temperature level in the machine can be reduced and the service life and efficiency can be improved. However, the performance of the machine can also be increased until the temperature level of the starting machine is reached with a sheet and plate package without a heat-conducting layer.
- Sheet metal fins 2 with improved thermal conductivity and one-sided insulation can thus be produced in one.
- the sheet metal fins 2 and the thermal insulation layers 10 are in direct physical contact with one another, i.e. there is no air gap between the layers 10 and the slats 2.
- the layers 10 can of course also be arranged between the sheet metal lamellae 2 without being directly connected to a sheet metal lamellae 2.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Manufacture Of Motors, Generators (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002536697A JP2004512792A (ja) | 2000-10-17 | 2001-08-18 | 成層鉄心 |
EP01962662A EP1262009A1 (de) | 2000-10-17 | 2001-08-18 | Blech-lamellen-paket |
MXPA02006010A MXPA02006010A (es) | 2000-10-17 | 2001-08-18 | Armadura para una maquina electrica asi como el procedimiento para su fabricacion. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10051499.5 | 2000-10-17 | ||
DE10051499A DE10051499A1 (de) | 2000-10-17 | 2000-10-17 | Blech-Lamellen-Paket |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002033808A1 true WO2002033808A1 (de) | 2002-04-25 |
Family
ID=7660125
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2001/003169 WO2002033808A1 (de) | 2000-10-17 | 2001-08-18 | Blech-lamellen-paket |
Country Status (6)
Country | Link |
---|---|
US (1) | US20030077476A1 (de) |
EP (1) | EP1262009A1 (de) |
JP (1) | JP2004512792A (de) |
DE (1) | DE10051499A1 (de) |
MX (1) | MXPA02006010A (de) |
WO (1) | WO2002033808A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2045896A4 (de) * | 2006-07-26 | 2016-03-02 | Mitsubishi Electric Corp | Dynamoelektrische maschine |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10314886A1 (de) * | 2003-04-01 | 2004-11-11 | Robert Bosch Gmbh | Bremseinrichtung für einen Elektromotor |
ES2407668T3 (es) * | 2010-04-06 | 2013-06-13 | Ge Energy Power Conversion Technology Limited | Máquinas eléctricas |
DE102014004613B4 (de) * | 2014-03-29 | 2017-11-30 | Groschopp Ag Drives & More | Elektromotor |
EP3402039A1 (de) * | 2017-05-10 | 2018-11-14 | Siemens Aktiengesellschaft | Isolation einer elektrischen maschine |
DE102019120944A1 (de) * | 2019-08-02 | 2021-02-04 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Stator für eine elektrische Maschine mit verbesserter Kühlung, elektrische Maschine und Kraftfahrzeug |
EP3979465A1 (de) * | 2020-09-30 | 2022-04-06 | Siemens Aktiengesellschaft | Elektrische maschine und anlage |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4103195A (en) * | 1976-08-11 | 1978-07-25 | General Electric Company | Bonded laminations forming a stator core |
EP0461906A2 (de) * | 1990-06-15 | 1991-12-18 | General Electric Company | Ständerkühlungssystem für eine elektrische Maschine |
DE29721266U1 (de) * | 1997-04-30 | 1998-02-12 | Siemens Ag | Beschichtung für Blechelemente von elektrischen Maschinen, insbesondere Statorbleche von Hochspannungsmaschinen |
US6121709A (en) * | 1997-10-16 | 2000-09-19 | Alliedsignal Inc. | Rotor assembly having bonded lamination stack |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1877569A (en) * | 1930-02-19 | 1932-09-13 | Radio Patents Corp | Electromagnetic apparatus |
US3710574A (en) * | 1969-07-22 | 1973-01-16 | R Pearson | Fluid distribution and injection systems |
US5600238A (en) * | 1994-07-05 | 1997-02-04 | Ford Motor Company | Method and apparatus for detecting the linear or rotary position of an object through the use of a variable magnetic shunt disposed in parallel with a yoke air gap |
DE29514476U1 (de) * | 1995-02-23 | 1995-11-23 | Vem Elektroantriebe Gmbh | Anordnung zur Erhöhung der Wärmeleitung in Blechpaketen umlaufender elektrischer Maschinen |
JPH09312361A (ja) * | 1996-05-22 | 1997-12-02 | Hitachi Metals Ltd | 電子部品用複合材料およびその製造方法 |
US5703421A (en) * | 1996-05-24 | 1997-12-30 | The United States Of America As Represented By The Secretary Of The Air Force | Reluctance generator/motor cooling |
US6159305A (en) * | 1998-07-14 | 2000-12-12 | General Electric Company | High speed induction motor rotor and method of fabrication |
-
2000
- 2000-10-17 DE DE10051499A patent/DE10051499A1/de not_active Withdrawn
-
2001
- 2001-08-18 EP EP01962662A patent/EP1262009A1/de not_active Withdrawn
- 2001-08-18 MX MXPA02006010A patent/MXPA02006010A/es unknown
- 2001-08-18 US US10/149,811 patent/US20030077476A1/en not_active Abandoned
- 2001-08-18 WO PCT/DE2001/003169 patent/WO2002033808A1/de not_active Application Discontinuation
- 2001-08-18 JP JP2002536697A patent/JP2004512792A/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4103195A (en) * | 1976-08-11 | 1978-07-25 | General Electric Company | Bonded laminations forming a stator core |
EP0461906A2 (de) * | 1990-06-15 | 1991-12-18 | General Electric Company | Ständerkühlungssystem für eine elektrische Maschine |
DE29721266U1 (de) * | 1997-04-30 | 1998-02-12 | Siemens Ag | Beschichtung für Blechelemente von elektrischen Maschinen, insbesondere Statorbleche von Hochspannungsmaschinen |
US6121709A (en) * | 1997-10-16 | 2000-09-19 | Alliedsignal Inc. | Rotor assembly having bonded lamination stack |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2045896A4 (de) * | 2006-07-26 | 2016-03-02 | Mitsubishi Electric Corp | Dynamoelektrische maschine |
Also Published As
Publication number | Publication date |
---|---|
JP2004512792A (ja) | 2004-04-22 |
US20030077476A1 (en) | 2003-04-24 |
DE10051499A1 (de) | 2002-04-25 |
EP1262009A1 (de) | 2002-12-04 |
MXPA02006010A (es) | 2003-01-28 |
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