WO2000013293A2 - Electric motor stator and rotor production method - Google Patents
Electric motor stator and rotor production method Download PDFInfo
- Publication number
- WO2000013293A2 WO2000013293A2 PCT/TR1999/000016 TR9900016W WO0013293A2 WO 2000013293 A2 WO2000013293 A2 WO 2000013293A2 TR 9900016 W TR9900016 W TR 9900016W WO 0013293 A2 WO0013293 A2 WO 0013293A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- stator
- rotor
- packs
- figures
- production method
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 238000003475 lamination Methods 0.000 claims abstract description 23
- 239000011449 brick Substances 0.000 claims abstract description 4
- 230000000750 progressive effect Effects 0.000 claims abstract description 4
- 230000004907 flux Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 11
- 238000005304 joining Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 9
- 238000003466 welding Methods 0.000 description 6
- 238000012856 packing Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
Definitions
- This invention is related with a new production method which is developed to reduce the production costs , to minimize the shrinkage (7) and to use the sources in the best way at the production of electric motors which have internal stator and external rotor and big in dimension.
- Rotor and stator laminations are stamped from the same material band by progressive production method as one part.
- this method at the rotors and stators, which are single or packed laminations, if the core of the stator can be used for the rotor, then shrinkage is less.
- this method is applied to the electric motors with external rotors and internal stators the big amount of material is thrown away as shrinkage (7) ( Figure 1). Also since the dimensions are bigger the shrinkage (7) ratio grows. And the needed material gets wider, the costs of progressive die and press increase.
- stator and rotor profiles are sliced from the band material and they are wound at special winding machines as spiral or radial. (US-4116033) (US-4395815).By this production method shrinkage (7) ratio reduces, but during winding wrinkles and material deformations occur, and to avoid these, it has to empty the turned parts and to use extra apparatus to smooth the material, so the costs increase.
- the aim of this invention is to develop a new production method of electric motor stator ( Figure 8) and rotor ( Figure 9) which saves material by stamping stator (1) and rotor (2) as arc pieces ( Figures 2 and 4); facilitates transportation and arranging by packing the arc pieces ( Figures 6 and 7 ) and reduces the magnetic flux lost by arranging the packs by turning with certain angles .
- stator and rotor arc pieces, packs and cores so as to reach the aim of the aim of this invention formed as the figures enclosed, which are:
- stator and rotor cores Figures 8 and 9 with pieces and packs.
- stator and rotor lamination shrinkage material ( Figures 2 and 4) amount reduces at approximately %60 percentage.
- Lamination arc pieces ( Figures 3 and 5)can be turned one by one. But since it is easier to transport the packs ( Figures 6 and 7) and to arrange them at the welding machine, and the sliding of the laminations can be avoided by packing ,the arc shaped laminations are packed. ( Figures 3 and 5)
- stator core is formed by arranging of the packs of arc pieces on a magazine by turning with an angle as bonding the bricks.
- the packs of stator arc pieces ( Figure 6) are joined by welding machine or riveting and stator core is formed.
- rotor packs For rotor packs welding can be preferred as a joining method. They can be welded from the determined points at the external dimension of the profile. If the width of the rotor lamination is suitable, also riveting can be used.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
In this method stator and rotor laminations are stamped at a progressive die as stator arc piece (1) and rotor arc piece (2), arranged at any number at the die and with interlocking system by the rips at the rip place stator and rotor arc pieces packs are formed (Figures 6 and 7), packs are set around a magazine forming a ring turned with a certain angle and placed as bricks, after the thickness needed for the required motor power is provided by joining the packs rotor and stator cores (Figures 8 and 9) are formed.
Description
ELECTRICMOTORSTATORANDROTORPRODUCTIONMETHOD
This invention is related with a new production method which is developed to reduce the production costs , to minimize the shrinkage (7) and to use the sources in the best way at the production of electric motors which have internal stator and external rotor and big in dimension.
Generally at the production of stator and rotor laminations the applications of the methods below are seen.
Rotor and stator laminations are stamped from the same material band by progressive production method as one part. By this method at the rotors and stators, which are single or packed laminations, if the core of the stator can be used for the rotor, then shrinkage is less. But when this method is applied to the electric motors with external rotors and internal stators the big amount of material is thrown away as shrinkage (7) (Figure 1). Also since the dimensions are bigger the shrinkage (7) ratio grows. And the needed material gets wider, the costs of progressive die and press increase.
Another method which is known and applied is that the stator and rotor profiles are sliced from the band material and they are wound at special winding machines as spiral or radial. (US-4116033) (US-4395815).By this production method shrinkage (7) ratio reduces, but during winding wrinkles and material deformations occur, and to avoid these, it has to empty the turned parts and to use extra apparatus to smooth the material, so the costs increase.
The aim of this invention is to develop a new production method of electric motor stator (Figure 8) and rotor (Figure 9) which saves material by stamping stator (1) and rotor (2) as arc pieces (Figures 2 and 4); facilitates transportation and arranging by packing the arc pieces (Figures 6 and 7 ) and reduces the magnetic flux lost by arranging the packs by turning with certain angles .
The stator and rotor arc pieces, packs and cores so as to reach the aim of the aim of this invention formed as the figures enclosed, which are:
Figure 1, The amount of shrinkage when rotor and stator are sliced from the same material
Figure 2, The amount of shrinkage when stator lamination is sliced as arc pieces
Figure 3, The stator arc piece
Figure 4,The amount of shrinkage when rotor lamination is sliced as arc pieces.
Figure 5,The rotor arc piece
Figure 6, The pack of stator lamination arc pieces
Figure 7,The pack of rotor lamination arc pieces
Figure 8, The core of stator lamination
Figure 9,The core of rotor lamination
All the parts in the figures have been given numbers whose equivalents are below.
(1) Stator arc piece
(2) Rotor arc piece
(3) Stator rip place
(4) Stator rivet place
(5) Rotor welding place
(6) Rotor rip place
(7) The shrinkage
The method is the production method of stator and rotor cores (Figures 8 and 9) with pieces and packs. In this method first stator and rotor core (Figures 8 and 9) laminations are sliced as arc pieces at the die (Figures 3 and 5) and packed (Figures 6 and 7), then packs are arranged and joined to form stator and rotor cores. (Figures 8 and 9)
By using this method, at one stator and rotor lamination shrinkage material (Figures 2 and 4) amount reduces at approximately %60 percentage.
First the arc pieces at certain angles which form the laminations are sliced one by one (Figures 2 and 4). Certain amounts are put together and by interlocking system ,by the help of rips packs at requested thickness are formed. (Figures 6 and 7) So as to avoid magnetic flux losses, which occurs since the all the joining places come together, packs are arranged by turning with an angle like bonding bricks, stator and rotor cores at any thickness are formed. (Figures 8 and 9).
Lamination arc pieces (Figures 3 and 5)can be turned one by one. But since it is easier to transport the packs (Figures 6 and 7) and to arrange them at the welding machine,
and the sliding of the laminations can be avoided by packing ,the arc shaped laminations are packed. (Figures 3 and 5)
As a joining method for stator packs (Figure 6) riveting or welding can be chosen. For riveting there should be rivet holes on the laminations and for welding, places should be determined at the inside dimension of the lamination. At both of the methods, stator core is formed by arranging of the packs of arc pieces on a magazine by turning with an angle as bonding the bricks. The packs of stator arc pieces (Figure 6) are joined by welding machine or riveting and stator core is formed.
For rotor packs welding can be preferred as a joining method. They can be welded from the determined points at the external dimension of the profile. If the width of the rotor lamination is suitable, also riveting can be used.
Claims
1. Electric motor stator and rotor production method which is characterized with stator (1) and rotor (2) arc pieces that form the laminations which are divided at defined angles are sliced one by one and arranged at any number at the progressive die, packs at any requested thickness are formed by interlocking system and rips, so as to avoid the magnetic flux losses which occurs because of the joining parts of packs, packs are bonded like bricks by turning with an angle and so stator and rotor cores at any requested thickness are formed.
2. Electric motor stator and rotor production method like claim 1 which is characterized with the number of stator and rotor lamination packs that form the stator and rotor cores and the number of stator and rotor lamination arc pieces that form the stator and rotor lamination packs are both more than one and changing.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU39639/99A AU3963999A (en) | 1998-08-28 | 1999-03-25 | Electric motor stator and rotor production method |
| TR2001/00615T TR200100615T2 (en) | 1998-08-28 | 1999-03-25 | Electric motor stator and rotor production method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TR98/1690 | 1998-08-28 | ||
| TR9801690 | 1998-08-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2000013293A2 true WO2000013293A2 (en) | 2000-03-09 |
| WO2000013293A3 WO2000013293A3 (en) | 2000-07-27 |
Family
ID=21621639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/TR1999/000016 WO2000013293A2 (en) | 1998-08-28 | 1999-03-25 | Electric motor stator and rotor production method |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU3963999A (en) |
| TR (1) | TR200100615T2 (en) |
| WO (1) | WO2000013293A2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003073583A1 (en) * | 2002-02-28 | 2003-09-04 | Abb Research Ltd. | Synchronous generator |
| EP1162720A3 (en) * | 2000-06-09 | 2004-01-02 | Kienle & Spiess Stanz- und Druckgiesswerk GmbH | Laminations for laminated cores of rotary electric machines and method of manufacturing such laminations |
| FR2848886A1 (en) * | 2002-12-18 | 2004-06-25 | Realisations De Machines Agric | Process for forming a flat annular element for forming a wheel rim for a vehicle such as a tractor, involves cutting out four identical flat annular arcs from rigid metal sheet that are welded together to form wheel rim |
| DE10318411B4 (en) * | 2002-04-23 | 2012-08-23 | Mitsubishi Denki K.K. | linear motor |
| CN103042095A (en) * | 2012-12-15 | 2013-04-17 | 赵文明 | Multicolumn staggered punching process of electric motor with solid rotor |
| CN103532262A (en) * | 2013-10-23 | 2014-01-22 | 临安泰华机械设备有限公司 | Motor punching of refrigeration compressor and discharge blanking technology thereof |
| EP2713480A1 (en) * | 2012-09-27 | 2014-04-02 | Siemens Aktiengesellschaft | Rotor of a permanent magnet generator |
| WO2023007379A1 (en) * | 2021-07-30 | 2023-02-02 | Cummins Inc. | Multi-rotor electrical machine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2172051C1 (en) * | 2000-12-15 | 2001-08-10 | ООО "КД-Электро" | Method for manufacturing electrical machine rotor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2536222B1 (en) * | 1982-11-15 | 1985-10-18 | Villeger Marcel | ANNULAR ALTERNATOR |
| DE3906368A1 (en) * | 1988-03-02 | 1989-09-14 | Emiliane Trancerie Spa | METHOD FOR PRODUCING A STATOR MAGNETIC CIRCUIT FROM ROTATING ELECTRICAL MACHINES OR A MAGNETIC CIRCUIT OF TRANSFORMERS, AND A MAGNETIC CIRCUIT OBTAINED THEREFORE |
| FR2673052B1 (en) * | 1991-02-19 | 1995-06-23 | Jeumont Schneider Ind | BEDS FOR LEAF OR SHEET RINGS. |
-
1999
- 1999-03-25 WO PCT/TR1999/000016 patent/WO2000013293A2/en active Application Filing
- 1999-03-25 AU AU39639/99A patent/AU3963999A/en not_active Abandoned
- 1999-03-25 TR TR2001/00615T patent/TR200100615T2/en unknown
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1162720A3 (en) * | 2000-06-09 | 2004-01-02 | Kienle & Spiess Stanz- und Druckgiesswerk GmbH | Laminations for laminated cores of rotary electric machines and method of manufacturing such laminations |
| WO2003073583A1 (en) * | 2002-02-28 | 2003-09-04 | Abb Research Ltd. | Synchronous generator |
| DE10318411B4 (en) * | 2002-04-23 | 2012-08-23 | Mitsubishi Denki K.K. | linear motor |
| FR2848886A1 (en) * | 2002-12-18 | 2004-06-25 | Realisations De Machines Agric | Process for forming a flat annular element for forming a wheel rim for a vehicle such as a tractor, involves cutting out four identical flat annular arcs from rigid metal sheet that are welded together to form wheel rim |
| EP2713480A1 (en) * | 2012-09-27 | 2014-04-02 | Siemens Aktiengesellschaft | Rotor of a permanent magnet generator |
| WO2014048784A3 (en) * | 2012-09-27 | 2014-08-07 | Siemens Aktiengesellschaft | Rotor of a permanent magnet generator |
| CN103042095A (en) * | 2012-12-15 | 2013-04-17 | 赵文明 | Multicolumn staggered punching process of electric motor with solid rotor |
| CN103532262A (en) * | 2013-10-23 | 2014-01-22 | 临安泰华机械设备有限公司 | Motor punching of refrigeration compressor and discharge blanking technology thereof |
| WO2023007379A1 (en) * | 2021-07-30 | 2023-02-02 | Cummins Inc. | Multi-rotor electrical machine |
Also Published As
| Publication number | Publication date |
|---|---|
| TR200100615T2 (en) | 2002-03-21 |
| WO2000013293A3 (en) | 2000-07-27 |
| AU3963999A (en) | 2000-03-21 |
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