WO1999041823A1 - Kurzgeschlossener rotor - Google Patents
Kurzgeschlossener rotor Download PDFInfo
- Publication number
- WO1999041823A1 WO1999041823A1 PCT/DE1999/000324 DE9900324W WO9941823A1 WO 1999041823 A1 WO1999041823 A1 WO 1999041823A1 DE 9900324 W DE9900324 W DE 9900324W WO 9941823 A1 WO9941823 A1 WO 9941823A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rotor
- short
- unit
- structural unit
- circuited
- Prior art date
Links
- 239000000956 alloy Substances 0.000 claims abstract description 10
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 7
- 239000002826 coolant Substances 0.000 claims description 5
- 238000005266 casting Methods 0.000 claims description 3
- 238000013016 damping Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 238000004804 winding Methods 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- 230000006978 adaptation Effects 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 5
- 230000002349 favourable effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/16—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors
- H02K17/20—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors having deep-bar rotors
Definitions
- the invention relates to a short-circuited rotor of a device for converting electrical into mechanical or mechanical into electrical energy, which is enclosed by a stator body carrying a winding.
- the invention is used in particular in such facilities or the like.
- Type in which torques with a strongly changing amplitude occur in a large frequency range.
- Such applications exist, for example, when the device for energy conversion is used in systems for actively reducing rotational irregularities in the drive shafts of internal combustion engines.
- the electromagnetic energy converter allows, e.g. Depending on the amplitude and frequency, the energy distribution for degradation, e.g. to control the rotational irregularities.
- the high and highest energy densities that occur in the entire facility lead to thermal problems - an adequate cooling or coolant supply to all areas of the machine that require cooling is insufficiently guaranteed.
- the squirrel-cage rotors are described as squirrel-cage rotors with cage bars running in the axial direction, each of which is connected on the front side with short-circuit rings (DE 195 32 128, column 38, lines 2 - 6, DE 195 49 259, column 37, lines 52 - 56).
- short-circuit rotors are practically designed with copper rods brazed or welded in short-circuit rings. Disadvantages of such a rotor design are on the one hand to be seen in a complex and therefore expensive production, on the other hand, rotors constructed in this way have considerable imbalances and thus quality defects or have to be balanced in a complex manner.
- connection between the rotor cage and the driven or driving shaft also requires additional and specially designed assemblies in the usual design.
- the aim of the invention is therefore to provide a short-circuited rotor for energy-converting devices of the type mentioned, the manufacturing cost of which is significantly reduced compared to the solutions of the prior art, the design principle of which avoids causes of imbalance, which allow extreme mechanical stresses to be controlled, and in terms of shape, a favorable guide for a liquid cooling medium for the winding-receiving stator and the rotor, and which allows an uncomplicated connection to driving or driven shafts.
- This goal is achieved by a short-circuited rotor, which is designed according to the features of the claims.
- Has short-circuit cage which forms a unit with the supporting hub of the rotor.
- a short-circuited rotor is made in one piece from an alloy using the casting process, the choice of the alloy material making it possible to adapt the rotor in a favorable and important manner to its use parameters, such as
- Torque or damping variables can take place.
- the use of the casting process to produce the one-piece rotor also leads to a thermally favorable design of the rotor: in the case of conventional design of short-circuited rotors, these are multiple thermal material transitions - 3 - available, the rotor according to the invention enables a continuous flow of heat within its material, as a result of which effective cooling is better possible. This plays an important role especially when using the rotor in the area of strongly changing moments and frequencies.
- the cooling medium is guided onto the winding of the enclosing stator body by a suitable design.
- the design of the short-circuit cage and hub unit not only enables the rotor to be easily flanged to driving or driven shafts, but also permits a particularly short design of the rotor or a size ratio of diameter to rotor length. This is also a particular advantage from the point of view of the use of the rotor in energy converters in the motor vehicle.
- the short-circuited rotor is enclosed by the stator body in such a way that a medium required for cooling can be supplied to both parts of the rotor and stator at the same time.
- immersion cooling can be used first, then oil mist cooling at higher speeds.
- Jet cooling can also be used advantageously, in particular in this case the rotor body can have directional surface elements which cause the cooling medium to be conveyed in a manner which promotes cooling.
- this consists of a structural unit 1 of hub 1a and short-circuit cage 1b with an enclosed laminated core.
- This laminated core contains grooves 3, which also accommodate the alloy material of the short-circuit cage 1b.
- Short-circuit rods replaced in a surprisingly advantageous manner and virtually integrated into the material and construct structure.
- This special feature of the invention leads to significant improvements in the cooling properties of the rotor and to high savings by eliminating material transitions - 4 -
- the structural unit 1 has stiffening parts 4 which are angled or flattened into the alloy body of the unit 1 on the inside and / or outside diameter of the unit 1. These stiffening parts 4 are preferably arranged as a ring insert.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
- Induction Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99910112A EP1053586A1 (de) | 1998-02-14 | 1999-02-08 | Kurzgeschlossener rotor |
AU29207/99A AU2920799A (en) | 1998-02-14 | 1999-02-08 | Short-circuited rotor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19806088A DE19806088A1 (de) | 1998-02-14 | 1998-02-14 | Kurzgeschlossener Rotor |
DE19806088.2 | 1998-02-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999041823A1 true WO1999041823A1 (de) | 1999-08-19 |
Family
ID=7857730
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1999/000324 WO1999041823A1 (de) | 1998-02-14 | 1999-02-08 | Kurzgeschlossener rotor |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1053586A1 (de) |
AU (1) | AU2920799A (de) |
DE (1) | DE19806088A1 (de) |
WO (1) | WO1999041823A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2476483A (en) * | 2009-12-22 | 2011-06-29 | Ec Power As | Engine-generator rotor |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3662200A (en) * | 1970-07-06 | 1972-05-09 | Gen Motors Corp | Squirrel cage rotor with interference fit sleeve between shaft and core |
JPS5941161A (ja) * | 1982-08-31 | 1984-03-07 | Toshiba Corp | 誘導電動機のかご形回転子 |
JPS59106866A (ja) * | 1982-12-10 | 1984-06-20 | Toshiba Corp | 密閉形圧縮機用かご形誘導電動機 |
US4504755A (en) * | 1983-11-03 | 1985-03-12 | Kollmorgen Technologies Corporation | Rotor reluctance notch for cogging control |
US4568846A (en) * | 1983-10-28 | 1986-02-04 | Welco Industries | Permanent magnet laminated rotor with conductor bars |
US4704555A (en) * | 1986-06-16 | 1987-11-03 | General Electric Company | Improved disc rotor assembly |
US5861700A (en) * | 1996-04-30 | 1999-01-19 | Samsung Electronics Co., Ltd. | Rotor for an induction motor |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1683697U (de) * | 1951-02-09 | 1954-09-23 | Hermann Papst | Induktionsmotor mit sekundaerteil- anordnungen fuer geringes geraeusch, kraeftigen anzug und gute wirkung. |
US3570117A (en) * | 1966-10-28 | 1971-03-16 | Victor Company Of Japan | Method of making squirrel-cage outer rotor for outer rotor type squirrel-cage induction motors |
IT1063509B (it) * | 1976-06-15 | 1985-02-11 | Gutris Giorgio | Macchina elettrica rotante di tipo rovesciato con mezzi strutturali per collegare il suo statore ad altri organi della macchina stessa e ad organi statici ester ni ad essa |
-
1998
- 1998-02-14 DE DE19806088A patent/DE19806088A1/de not_active Ceased
-
1999
- 1999-02-08 AU AU29207/99A patent/AU2920799A/en not_active Abandoned
- 1999-02-08 EP EP99910112A patent/EP1053586A1/de not_active Withdrawn
- 1999-02-08 WO PCT/DE1999/000324 patent/WO1999041823A1/de not_active Application Discontinuation
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3662200A (en) * | 1970-07-06 | 1972-05-09 | Gen Motors Corp | Squirrel cage rotor with interference fit sleeve between shaft and core |
JPS5941161A (ja) * | 1982-08-31 | 1984-03-07 | Toshiba Corp | 誘導電動機のかご形回転子 |
JPS59106866A (ja) * | 1982-12-10 | 1984-06-20 | Toshiba Corp | 密閉形圧縮機用かご形誘導電動機 |
US4568846A (en) * | 1983-10-28 | 1986-02-04 | Welco Industries | Permanent magnet laminated rotor with conductor bars |
US4504755A (en) * | 1983-11-03 | 1985-03-12 | Kollmorgen Technologies Corporation | Rotor reluctance notch for cogging control |
US4704555A (en) * | 1986-06-16 | 1987-11-03 | General Electric Company | Improved disc rotor assembly |
US5861700A (en) * | 1996-04-30 | 1999-01-19 | Samsung Electronics Co., Ltd. | Rotor for an induction motor |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 008, no. 131 (E - 251) 19 June 1984 (1984-06-19) * |
PATENT ABSTRACTS OF JAPAN vol. 008, no. 226 (E - 272) 17 October 1984 (1984-10-17) * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2476483A (en) * | 2009-12-22 | 2011-06-29 | Ec Power As | Engine-generator rotor |
Also Published As
Publication number | Publication date |
---|---|
AU2920799A (en) | 1999-08-30 |
EP1053586A1 (de) | 2000-11-22 |
DE19806088A1 (de) | 1999-08-26 |
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