WO2023276512A1 - Rotor et son procédé de fabrication, et moteur électrique - Google Patents
Rotor et son procédé de fabrication, et moteur électrique Download PDFInfo
- Publication number
- WO2023276512A1 WO2023276512A1 PCT/JP2022/021823 JP2022021823W WO2023276512A1 WO 2023276512 A1 WO2023276512 A1 WO 2023276512A1 JP 2022021823 W JP2022021823 W JP 2022021823W WO 2023276512 A1 WO2023276512 A1 WO 2023276512A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rotor
- magnet
- permanent magnet
- ferromagnetic material
- rotating shaft
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 title abstract description 4
- 230000005294 ferromagnetic effect Effects 0.000 claims abstract description 25
- 230000005291 magnetic effect Effects 0.000 claims description 38
- 239000003302 ferromagnetic material Substances 0.000 claims description 32
- 239000000843 powder Substances 0.000 claims description 8
- 239000000696 magnetic material Substances 0.000 claims description 3
- 230000004907 flux Effects 0.000 description 15
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 238000004804 winding Methods 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 229910000859 α-Fe Inorganic materials 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005292 diamagnetic effect Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Images
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
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
Definitions
- the rotor 2 is arranged with the stator 3 through an air gap. Specifically, a minute air gap exists between the surface of the rotor 2 and the surface of the stator 3 .
- the rotor 2 is an embedded permanent magnet rotor (IPM rotor) in which permanent magnets are embedded in an iron core. Therefore, electric motor 1 in the present embodiment is an IPM motor.
- the permanent magnet 30 may be coated with a coating material made of resin to form a coating layer (not shown) to cover the periphery of the permanent magnet 30 .
- the N pole and the S pole are separated by the ferromagnetic material 31, so even if the temperature rises, the magnetic field coming out does not weaken.
Abstract
Le but de la présente invention est de fournir un rotor capable de réduire un couple de crantage, un procédé de fabrication du rotor et un moteur électrique. Le rotor comprend : un noyau de rotor (20) ayant une pluralité de trous de placement d'aimant (21) ; une pluralité de paires d'un aimant permanent (30) et d'un corps ferromagnétique (31) respectivement placées à l'intérieur de la pluralité de trous de placement d'aimant (21) ; et un arbre rotatif fixé au noyau de rotor (20). L'aimant permanent (30) et le corps ferromagnétique (31) sont placés dans chacun de la pluralité de trous de placement d'aimant (21) de telle sorte que l'aimant permanent (30) entre en contact avec une surface interne (21a) des surfaces internes (21a, 21b) faisant face dans la direction de rotation et que le corps ferromagnétique (31) entre en contact avec l'autre surface interne (21b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2023531715A JPWO2023276512A1 (fr) | 2021-06-30 | 2022-05-27 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2021-108265 | 2021-06-30 | ||
| JP2021108265 | 2021-06-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023276512A1 true WO2023276512A1 (fr) | 2023-01-05 |
Family
ID=84691272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2022/021823 WO2023276512A1 (fr) | 2021-06-30 | 2022-05-27 | Rotor et son procédé de fabrication, et moteur électrique |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPWO2023276512A1 (fr) |
| WO (1) | WO2023276512A1 (fr) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001025191A (ja) * | 1999-07-05 | 2001-01-26 | Nissan Motor Co Ltd | 電動機のロータ及びその製造方法 |
-
2022
- 2022-05-27 JP JP2023531715A patent/JPWO2023276512A1/ja active Pending
- 2022-05-27 WO PCT/JP2022/021823 patent/WO2023276512A1/fr active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001025191A (ja) * | 1999-07-05 | 2001-01-26 | Nissan Motor Co Ltd | 電動機のロータ及びその製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2023276512A1 (fr) | 2023-01-05 |
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