CN102948041A - Securing of individual magnets of a part of an electric machine - Google Patents
Securing of individual magnets of a part of an electric machine Download PDFInfo
- Publication number
- CN102948041A CN102948041A CN2011800308271A CN201180030827A CN102948041A CN 102948041 A CN102948041 A CN 102948041A CN 2011800308271 A CN2011800308271 A CN 2011800308271A CN 201180030827 A CN201180030827 A CN 201180030827A CN 102948041 A CN102948041 A CN 102948041A
- Authority
- CN
- China
- Prior art keywords
- fastening projection
- magnet
- machine part
- bag
- shaped
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
- H02K1/2766—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect
- H02K1/2773—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect consisting of tangentially magnetized radial magnets
-
- 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
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
-
- 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
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The invention relates to a machine part (10), in particular a rotor or stator of an electric machine. Said machine part (10) comprises a packet (12) consisting of a plurality of stacked lamella-type metal sheets, and at least one magnet (16) that is accommodated in a pocket (14) designed in the packet (12). One of the lamella-type metal sheets is designed with at least one clamping nose (18) that extends into the pocket (14) and secures the magnet (16) in the pocket (14). Said clamping nose (18) is designed in such a way as to be at least partially deformed in a plastic manner by the magnet (16) when being inserted.
Description
Technical field
The present invention relates to a kind of machine part for motor, the especially rotor of electro-motor or stator, this electro-motor has at least one permanent magnet.
Background technology
Be provided with the rotor with a plurality of permanent magnets in commutating machine, permanent magnet must as far as possible stably be fixed on the rotor.
This rotor is typically designed to spoke-like rotor, and it comprises the lamination of the rotor thin plate of arranged superposed.The rotor thin plate is pressing product, has wherein arranged respectively the recess of spoke-like layout.The recess of spoke-like layout so overlaps each other in rotor pack, namely is formed for admitting the bag-shaped section of permanent magnet.Permanent magnet is fixed in bag-shaped by adhesive or by fastening projection.
Yet when being fixed by fastening projection, the problem of existence is: magnet is being inserted into bag-shaped of attaching troops to a unit when middle, fastening projection is respectively along the mantle friction of magnet.So magnet surface of can damaging or wear and tear.Because adhesive has different thermal coefficient of expansions with metal, so fixing lasting reliable the fixing that can not realize magnet of utilizing adhesive to carry out.
Summary of the invention
Therefore, the object of the invention is to, a kind of machine part for motor is provided, this machine part is fixed magnets better, wherein should prevent from damaging when mounted magnet.
In order to realize this purpose, machine part according to claim 1 has been proposed and according to the described commutating machine of claim arranged side by side.
Other favourable design has been described in the dependent claims.
According to first aspect, be provided with machine part, especially the rotor of motor or stator.Machine part comprises:
The lamination that is formed by the thin plate of a plurality of overlapping stratiforms,
At least one magnet, this magnet are contained in bag-shaped that is formed in the lamination,
Wherein one of thin plate has at least one fastening projection, and this fastening projection extend in bag-shaped and described fastening projection is fixed on magnet in bag-shaped,
Wherein fastening projection so forms, so that when inserting magnet, at least in part plastic deformation of described fastening projection.
Plastic deformation by fastening projection can be guaranteed, does not damage magnet surface when inserting.
Also can be designed as, the thin plate and other thin plate that form fastening projection thereon distinguish.Therefore when the manufacturing machine parts, only must provide a thin plate with fastening projection, and can the Application standard parts for remaining thin plate.Can consider also that at this thin plate that forms fastening projection is thereon compared by the material with different mechanical properties from remaining thin plate and made.
A plurality of fastening projections preferably are set, especially can admit each bag-shaped of each magnet a fastening projection of attaching troops to a unit is set for being used for.Can guarantee that thus each magnet of machine part is fixed on by its fastening projection of attaching troops to a unit among corresponding bag-shaped of lamination.
According to a kind of embodiment, fastening projection also can strain when inserting magnet, thereby the elastic reset power of magnet by fastening projection is fixed in bag-shaped, thus fixed magnets especially reliably.
In addition, described fastening projection can be at its convergent on the direction of the end of described magnet.Can regulate in the following manner thus plasticity and the elastically deformable of fastening projection: when inserting magnet, towards the slightly plastic deformation of the end of magnet, and and then the surface of magnet is not damaged, and the not so slight plastic deformation of the section that deviates from magnet of fastening projection, and therefore can magnet be fixed in bag-shaped by its elastic reset power.
According to another embodiment, fastening projection can have at least one recess.Can make the plasticity of zones of different of fastening projection and elastically deformable exact matching in the requirement of particular machine parts by one or more this recesses, in order to both avoided the damage of magnet surface, also realized reliable fixing among under it bag-shaped of magnet.
At least one recess can be arranged in the zone of fastening projection thus, and the especially consumingly plastic deformation when inserting magnet of this zone is in order to increase targetedly the plastically deformable of fastening projection in this zone.
Two recesses especially can be set, and they are so arranged relative to one another, so that fastening projection has the zone of constriction.The zone of this constriction then has the plastically deformable of increase with respect to other zone of fastening projection, thereby can guarantee, when magnet is inserted into bag-shaped of attaching troops to a unit in fastening projection when middle, accurately especially consumingly plastic deformation in this zone of fastening projection.
A kind of commutating machine is provided in addition, and it comprises aforesaid rotor as machine part.
Description of drawings
The below illustrates the preferred embodiments of the present invention with reference to the accompanying drawings.Accompanying drawing shows:
Fig. 1 shows the vertical view of spoke-like rotor before magnet is installed;
Fig. 2 shows the cutaway view of fastening projection and magnet after magnet is inserted in the spoke-like rotor;
Fig. 3 shows the partial enlarged drawing according to the zone that indicates with A among a kind of embodiment, that have fastening projection, Fig. 1; And
Fig. 4 shows the revision for execution scheme of the fastening projection shown in Fig. 3.
Embodiment
As shown in Figure 1, be used for spoke-like rotor (Speichenrotor) the 10(machine part of commutating machine) comprise rotor pack 12, this rotor pack is for example formed by rotor thin plate a plurality of punching out and arranged superposed.In rotor pack 12, form bag-shaped (Taschen) 14, in this bag-shaped, can hold magnet 16(referring to Fig. 2).
Form fastening projection 18 in one of rotor thin plate of rotor pack 12, this fastening projection extend in bag-shaped 14.Therefore, the fastening projection 18 that forms like this can form during making the rotor thin plate, and do not need extra operation the parts that will not add are placed on the spoke-like rotor 10 or in.
As shown in Figure 2 such, when magnet 16 is inserted in bag-shaped 14, fastening projection 18 distortion of attaching troops to a unit.Preferred fastening projection 18 had both carried out plastic deformation and had also carried out strain.Reduce to act on magnet 16 lip-deep power by plastic deformation.Therefore can be reduced in insertion or commutating machine run duration to the damage on magnet 16 surfaces.
Fastening projection 18 so designs, so that under the installment state of magnet 16, one of surface of fastening projection 18 is with acute angle or approximate being resisted against abreast on the magnet 16.This especially can realize by following manner, namely so selects the length of fastening projection, so that fastening projection extend in bag-shaped 14, thereby fastening projection is crooked and correspondingly be resisted against on the magnet 16 in the position of bending when inserting magnet.Preferably, fastening projection against the angle between the sweep of thereon face and fastening projection should less than 45 °, preferably less than 30 °.Can guarantee that thus the edge of fastening projection 18 is not applied to excessive power on the zonule on surface of magnet 16.Simultaneously, magnet 16 fastened protuberances 18 remain in bag-shaped 14 reliably.
As shown in Figure 3 such, fastening projection 18 so designs according to the first embodiment, so that fastening projection is towards the end regions convergent.Can realize that thus the end regions of fastening projection 18 is plasticity and strain especially slightly, thereby when inserting, not damage the surface of magnet 16.
The second embodiment of fastening projection 118 has been shown among Fig. 4.Fastening projection 118 is preferably also with integrally formed with the rotor thin plate, and be out of shape like that in bag-shaped the middle time image following manner of attaching troops to a unit that magnet is inserted into spoke-like rotor, in Fig. 2, illustrate for the fastening projection 18 according to the first embodiment.
Be provided with a plurality of recesses 120,122 in the fastening projection 118 according to the second embodiment, these recesses have been realized: the central region of fastening projection 118 has less cross section and thus especially simply plasticity and strain.As illustrating, two opposed recesses 120,122 can be set, thereby produce the zone of constriction.Alternatively, can a recess only be set on each fastening projection 118, each other not direct opposed a plurality of recesses perhaps can be set.
Can accurately be plasticity and the elastically deformable that fastening projection 118 is so set in each combination that rotor pack and magnet form by recess 120,122 layout and size, so that both can avoid damaging the surface of magnet, also can guarantee magnet fully fixing in bag-shaped of rotor pack.
Claims (9)
1. rotor or the stator of a machine part (10), especially motor, described machine part comprises:
The lamination (12) that is formed by the thin plate of a plurality of overlapping stratiforms,
At least one magnet (16), described magnet are contained in bag-shaped (14) that are formed in the described lamination (12),
One of wherein said thin plate has at least one fastening projection (18; 118), described fastening projection extend in described bag-shaped (14) and described fastening projection is fixed on described magnet (16) in described bag-shaped (14),
It is characterized in that described fastening projection (18; 118) so form, so that when inserting described magnet (16), at least in part plastic deformation of described fastening projection.
2. machine part according to claim 1 (10) is characterized in that, forms described fastening projection (18 thereon; 118) described thin plate and other thin plate distinguish.
3. machine part according to claim 1 and 2 (10) is characterized in that, a plurality of fastening projections (18 are set; 118).
4. each described machine part (10) in 3 according to claim 1 is characterized in that described fastening projection (18; 118) when inserting described magnet (16), also carry out strain, thereby described magnet (16) is by described fastening projection (18; 118) elastic reset power and being fixed in described bag-shaped (14).
5. each described machine part (10) in 4 according to claim 1 is characterized in that described fastening projection (18; 118) at its convergent on the direction of the end of described magnet (16).
6. each described machine part (10) in 5 according to claim 1 is characterized in that described fastening projection (118) has at least one recess (120; 122).
7. machine part according to claim 6 (10) is characterized in that, described at least one recess (120; 122) be arranged in the zone of described fastening projection (118) the especially consumingly plastic deformation when inserting described magnet (16) of described zone.
8. according to claim 6 or 7 described machine parts (10), it is characterized in that, be provided with two recesses opposite each other (120; 122).
9. commutating machine comprises rotor (10), and described rotor design is according to each described machine part in the aforementioned claim.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201010030326 DE102010030326A1 (en) | 2010-06-22 | 2010-06-22 | Attachment of individual magnets of a machine part of an electrical machine |
| DE102010030326.7 | 2010-06-22 | ||
| PCT/EP2011/056635 WO2011160872A2 (en) | 2010-06-22 | 2011-04-27 | Securing of individual magnets of a part of an electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102948041A true CN102948041A (en) | 2013-02-27 |
Family
ID=44626078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011800308271A Pending CN102948041A (en) | 2010-06-22 | 2011-04-27 | Securing of individual magnets of a part of an electric machine |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2586117A2 (en) |
| JP (1) | JP2013529054A (en) |
| CN (1) | CN102948041A (en) |
| DE (1) | DE102010030326A1 (en) |
| WO (1) | WO2011160872A2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105075070A (en) * | 2013-03-19 | 2015-11-18 | 依必安-派特圣乔根有限责任两合公司 | Electric motor comprising an internal rotor and an external stator |
| CN108599422A (en) * | 2018-07-16 | 2018-09-28 | 珠海凌达压缩机有限公司 | Rotor core structure and compressor |
| CN108696085A (en) * | 2017-04-06 | 2018-10-23 | 标立电机有限公司 | The assembly method of Electronically Commutated Direct Current machine and Electronically Commutated Direct Current machine |
| CN113169605A (en) * | 2018-11-29 | 2021-07-23 | 舍弗勒技术股份两合公司 | Actuator and method for assembling an actuator |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011122023A1 (en) * | 2011-12-23 | 2013-06-27 | Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg | Robot sheet package of an electric motor |
| JP6281147B2 (en) * | 2012-08-07 | 2018-02-21 | 日本電産株式会社 | Rotor and motor |
| JP2016163409A (en) | 2015-02-27 | 2016-09-05 | 日本電産株式会社 | Motor |
| JP6464822B2 (en) | 2015-02-27 | 2019-02-06 | 日本電産株式会社 | motor |
| JP6683459B2 (en) * | 2015-11-05 | 2020-04-22 | 株式会社三井ハイテック | Method for manufacturing laminated core |
| DE102016218540A1 (en) | 2016-09-27 | 2018-03-29 | BSH Hausgeräte GmbH | Electric drive motor |
| JP2019146448A (en) * | 2018-02-23 | 2019-08-29 | 日産自動車株式会社 | Rotator and rotary electric machine having rotator |
| KR20220031823A (en) * | 2020-09-04 | 2022-03-14 | 현대자동차주식회사 | Rotor of axial flux motor |
| DE102021211341A1 (en) | 2021-10-07 | 2023-04-13 | Volkswagen Aktiengesellschaft | rotor package |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5581140A (en) * | 1992-09-02 | 1996-12-03 | Kabushiki Kaisha Toshiba | Permanent magnetic rotor and producing apparatus of the same |
| CN2527020Y (en) * | 2002-01-15 | 2002-12-18 | 引动节能科技股份有限公司 | Improved fixing structure for magnetic material of motor rotor |
| DE102007029719A1 (en) * | 2007-02-01 | 2008-08-07 | Robert Bosch Gmbh | Electric machine |
| DE102007036315A1 (en) * | 2007-07-31 | 2009-02-05 | Robert Bosch Gmbh | Disc pack for a rotor or stator of an electrical machine and corresponding electrical machine |
| DE102008043138A1 (en) * | 2008-10-23 | 2010-04-29 | Robert Bosch Gmbh | Slat package of a rotor of an electric machine |
-
2010
- 2010-06-22 DE DE201010030326 patent/DE102010030326A1/en active Pending
-
2011
- 2011-04-27 JP JP2013514606A patent/JP2013529054A/en active Pending
- 2011-04-27 CN CN2011800308271A patent/CN102948041A/en active Pending
- 2011-04-27 EP EP11716906.0A patent/EP2586117A2/en not_active Withdrawn
- 2011-04-27 WO PCT/EP2011/056635 patent/WO2011160872A2/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5581140A (en) * | 1992-09-02 | 1996-12-03 | Kabushiki Kaisha Toshiba | Permanent magnetic rotor and producing apparatus of the same |
| CN2527020Y (en) * | 2002-01-15 | 2002-12-18 | 引动节能科技股份有限公司 | Improved fixing structure for magnetic material of motor rotor |
| DE102007029719A1 (en) * | 2007-02-01 | 2008-08-07 | Robert Bosch Gmbh | Electric machine |
| DE102007036315A1 (en) * | 2007-07-31 | 2009-02-05 | Robert Bosch Gmbh | Disc pack for a rotor or stator of an electrical machine and corresponding electrical machine |
| DE102008043138A1 (en) * | 2008-10-23 | 2010-04-29 | Robert Bosch Gmbh | Slat package of a rotor of an electric machine |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105075070A (en) * | 2013-03-19 | 2015-11-18 | 依必安-派特圣乔根有限责任两合公司 | Electric motor comprising an internal rotor and an external stator |
| US9979246B2 (en) | 2013-03-19 | 2018-05-22 | Emb-Papst St. Georgen Gmbh & Co. Kg. | Electric motor comprising an internal rotor and an external stator |
| CN108696085A (en) * | 2017-04-06 | 2018-10-23 | 标立电机有限公司 | The assembly method of Electronically Commutated Direct Current machine and Electronically Commutated Direct Current machine |
| CN108696085B (en) * | 2017-04-06 | 2020-11-06 | 标立电机有限公司 | Electronically commutated DC motor and method for assembling an electronically commutated DC motor |
| CN108599422A (en) * | 2018-07-16 | 2018-09-28 | 珠海凌达压缩机有限公司 | Rotor core structure and compressor |
| CN108599422B (en) * | 2018-07-16 | 2020-04-10 | 珠海凌达压缩机有限公司 | Rotor core structure and compressor |
| CN113169605A (en) * | 2018-11-29 | 2021-07-23 | 舍弗勒技术股份两合公司 | Actuator and method for assembling an actuator |
| CN113169605B (en) * | 2018-11-29 | 2024-05-28 | 舍弗勒技术股份两合公司 | Actuator and method for assembling an actuator |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011160872A2 (en) | 2011-12-29 |
| JP2013529054A (en) | 2013-07-11 |
| WO2011160872A3 (en) | 2012-10-11 |
| EP2586117A2 (en) | 2013-05-01 |
| DE102010030326A1 (en) | 2011-12-22 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130227 |