CN102948040B - For the self-locking tension element of the magnet of electro-mechanical machine parts - Google Patents
For the self-locking tension element of the magnet of electro-mechanical machine parts Download PDFInfo
- Publication number
- CN102948040B CN102948040B CN201180030948.6A CN201180030948A CN102948040B CN 102948040 B CN102948040 B CN 102948040B CN 201180030948 A CN201180030948 A CN 201180030948A CN 102948040 B CN102948040 B CN 102948040B
- Authority
- CN
- China
- Prior art keywords
- magnet
- spring element
- machine part
- rotor
- 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.)
- Expired - Fee Related
Links
- 238000003475 lamination Methods 0.000 claims abstract description 17
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/17—Stator cores with permanent 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
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
Abstract
The present invention relates to a kind of machine part (10), especially the rotor of motor or stator.Machine part (10) comprising: the lamination (12) be made up of the thin plate of multiple overlapping stratiform, at least one is contained in magnet (16) in the pocket (14) be formed in lamination (12) and arc spring parts (18), and these arc spring parts comprise the spring element (22) between at least one edge being arranged in magnet (16) and pocket (14).
Description
Technical field
The present invention relates to rotor or the stator of a kind of machine part for motor, especially electro-motor, it has at least one permanent magnet.
Background technology
In commutating machine, be provided with machine part, especially have the rotor of multiple permanent magnet, permanent magnet must as far as possible stably be fixed in the rotor.
This rotor is typically designed to spoke-like rotor (Speichenrotor), and it comprises the lamination of the rotor thin plate of arranged superposed.Rotor thin plate is pressing product, wherein arranges the recess of spoke-like layout respectively.In rotor pack, the recess of spoke-like layout so overlaps each other, and namely forms the pocket for receiving permanent magnet.Permanent magnet is fixed in pocket by adhesive or by fastening projection.
Usually due to tolerance reason, pocket is longer than the magnet be inserted into.But the fastening projection formed by rotor thin plate usually can not strain or only can little degree ground strain, thus can not damage the surface of magnet when inserting.Fastening projection in most cases needs additional bonds magnet, because fully can not be fixed on magnet in pocket.
Even if but utilize extra bonding magnet reliably can not be fixed in the pocket of rotor pack, because adhesive and metal have different thermal coefficient of expansions respectively.
Summary of the invention
Therefore, the object of the invention is to, provide a kind of machine part for motor, this machine part can fixed magnets better, wherein should prevent from damaging magnet when mounted.
In order to realize this object, propose machine part according to claim 1, commutating machine according to claim arranged side by side and ring-spring circle.
Describe the design that other is favourable 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 be made up of the thin plate of multiple overlapping stratiform,
At least one magnet, described magnet is contained in the pocket be formed in lamination, and
Arc spring parts, these arc spring parts comprise at least one and are arranged in spring element between magnet and the edge of pocket.
This arc spring parts can be installed in lamination and can reliably fixed magnets while installation magnet.
Arc spring parts can comprise cover plate, on the cover board arrange multiple spring element, thus utilize an operation can install multiple spring element simultaneously.
According to a kind of embodiment, the cover plate of arc spring parts can with the surface contact of magnet.Thus also can along the direction fixed magnets of the plane perpendicular to thin plate.
Spring element can be designed to V-arrangement respectively, and wherein a leg of spring element is connected with cover plate, and another leg of spring element is arranged on the edge of the pocket be formed in lamination.Therefore, when inserting the spring element of this V-arrangement, the end of the possible corner angle point of spring element is not pushed through magnet surface, but the spring element magnet of plane earth contact in other words by entire surface.After insertion spring element, the whole leg be connected with cover plate can be bearing on the surface of magnet, thus large confining force can be applied on magnet, and does not make the surface of magnet bear the pressure load of excessive pointwise.
According to a kind of embodiment, each spring element can have stop boss, and this stop boss is bearing on the step by two thin plates formation of lamination.This stop boss prevents arc spring parts from skidding off from lamination.
According to a kind of embodiment of the present invention, arc spring parts can be arranged respectively on the both sides of lamination.Can ensure that magnet does not move to any side or skids off thus.
Arc spring parts are preferably designed for pressing product or dish-type rushes comer pieces (Drahtbiegeteil).
In addition, provide a kind of commutating machine, it comprises the rotor being designed to aforementioned machines parts.Rotor especially can be designed as spoke-like rotor, and arc spring parts can be designed as ring-spring circle.
In order to realize being stably fixed in rotor by magnet, spring element can be arranged on the surface of the inner radial of magnet.
Finally, provide the ring-spring circle in a kind of pocket for being fixed on by multiple magnet in the rotor of commutating machine, this ring-spring circle comprises:
Cover circle, and
Multiple spring element, this spring element and covering are enclosed one and are connected, and this spring element can insert one of magnet respectively and attach troops to a unit between the edge of the pocket of magnet.
Accompanying drawing explanation
Exemplary with reference to the accompanying drawings description the preferred embodiments of the present invention below.Accompanying drawing illustrates:
Fig. 1 shows the vertical view of rotor pack;
Fig. 2 shows the vertical view of ring-spring circle;
Fig. 3 shows the cutaway view according to rotor of the present invention; And
Fig. 4 shows the cutaway view of ring-spring circle.
Embodiment
As shown in Fig. 1, spoke-like pocket (Taschen) 14 is set in the rotor pack (Rotorpaket) 12 of the rotor (machine part) for commutating machine, in this pocket, holds permanent magnet 16.Pocket 14 is designed to radially slightly long than the length of magnet 16 at this.Rotor pack 12 is formed by the rotor thin plate of multiple arranged superposed.
Fig. 2 shows the ring-spring circle 18 according to embodiment of the present invention, and it is designed to the pressing product formed by non-ferromagnetic metal sheet.Ring-spring circle 18 comprises covering circle 20 and multiple spring element 22, is arranged in spring element inner radial and covers on circle 20.
As illustrated by figure 3, spring element 22 inserts between magnet 16 and the wall portion of the inner radial of pocket 14 of attaching troops to a unit respectively.Thus can radially fixed magnets 16.In addition, covering circle 20 and abut on the surface of magnet 16 in the following manner, namely preventing magnet 16 from moving vertically by covering circle 18.
Ring-spring circle 18 can be arranged in rotor pack 12 at this together with magnet 16, thus rotor 10 can manufacture efficiently with few operation.When installing magnet 16 and ring-spring circle 18, such as first magnet 16 is inserted in the pocket 14 of attaching troops to a unit in rotor pack 12, then ring-spring circle 18 is so inserted, and spring element 22 is bonded between the wall portion of the inner radial of magnet 16 and pocket 14.
Due to not with cover the end of the possible corner angle point of spring element 22 that circle 20 is connected towards pocket 14, make the surface contact of the flat surfaces of only spring element 20 and bending rib and magnet 16.Therefore, the surface damaging magnet 16 can be avoided.
As shown in Figure 3, when two axial sides of rotor 10 use two ring-spring circles 18, therefore each magnet 16 reliably can be fixed in rotor pack 12 relative to all sides.
As amplifying in Fig. 4 and illustrating, spring element 22 has V-arrangement cross section respectively, before being mounted in rotor pack, as Fig. 4 a) shown in part, can so design this cross section, make two of V legs be essentially specular.
If ring-spring circle 18 inserts in rotor pack 12, so spring element 22 so strain, makes generally parallel to be resisted against on magnet 16 towards the leg of magnet 16, the b as Fig. 4) shown in part.On the whole surface of this leg, confining force radially can be applied on magnet 16 thus.Therefore, magnet 16 is radially reliably fixed in pocket 14, and the surface of magnet 16 is not damaged simultaneously.
The leg of the inner radial end towards pocket 14 of V-arrangement spring element 22 is so formed, in the separating plane between two the rotor thin plates making the stop boss 24 on leg end can join rotor pack 12 to.Therefore, prevent ring-spring circle 18 from skidding off from rotor pack 12.
Claims (11)
1. a machine part (10), comprising:
The lamination (12) be made up of the thin plate of multiple overlapping stratiform,
At least one magnet (16), described magnet is contained in the pocket (14) be formed in described lamination (12),
Wherein, be provided with arc spring parts (18), described arc spring parts comprise the spring element (22) between at least one edge being arranged in described magnet (16) and described pocket (14),
It is characterized in that, described spring element (22) is provided with stop boss on the free end of leg, in the separating plane between two thin plates that described stop boss can join described lamination (12) to.
2. machine part according to claim 1 (10), is characterized in that, described arc spring parts (18) comprise cover plate (20), and described cover plate is furnished with the multiple spring elements (22) for being arranged in multiple pocket (14).
3. machine part according to claim 2 (10), is characterized in that, the surface contact of described cover plate (20) and described magnet (16).
4. the machine part (10) according to Claims 2 or 3, it is characterized in that, described spring element (22) is designed to V-arrangement, a leg of wherein said spring element (22) is connected with described cover plate (20), and another leg of described spring element (22) is arranged on the edge of the pocket (14) be formed in described lamination (12).
5. machine part according to claim 1 (10), is characterized in that, described stop boss is bearing on the step by two thin plates formation of described lamination (12).
6. machine part according to claim 1 (10), is characterized in that, two sides of described lamination (12) arrange arc spring parts (18) respectively.
7. machine part according to claim 1 (10), is characterized in that, described arc spring parts (18) are designed to pressing product or dish-type rushes comer pieces.
8. machine part according to claim 1 (10), is characterized in that, described machine part (10) is rotor or the stator of motor.
9. commutating machine, comprises rotor (10), and described rotor design is according to machine part in any one of the preceding claims wherein.
10. commutating machine according to claim 9, is characterized in that, described spring element (22) is arranged on the surface of the inner radial of described magnet (16).
11. arc spring parts (18), for being fixed on by multiple magnet (16) in the pocket (14) in the rotor (10) of commutating machine, described arc spring parts comprise:
Cover circle (20), and
Multiple spring element (22), described spring element encloses (20) one be connected with described covering, and described spring element can insert one of described magnet (16) respectively and attach troops to a unit between the edge of the pocket (14) of described magnet (16),
It is characterized in that, described spring element (22) is provided with stop boss on the free end of leg, in the separating plane between two thin plates that described stop boss can join the lamination (12) of described rotor (10) to.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010030323.2 | 2010-06-22 | ||
| DE201010030323 DE102010030323A1 (en) | 2010-06-22 | 2010-06-22 | Self-locking clamping element for magnets of a machine part of an electrical machine |
| PCT/EP2011/056639 WO2011160873A2 (en) | 2010-06-22 | 2011-04-27 | Self-locking clamping element for magnets of a machine part of an electrical machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102948040A CN102948040A (en) | 2013-02-27 |
| CN102948040B true CN102948040B (en) | 2016-01-06 |
Family
ID=44626001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180030948.6A Expired - Fee Related CN102948040B (en) | 2010-06-22 | 2011-04-27 | For the self-locking tension element of the magnet of electro-mechanical machine parts |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2586116A2 (en) |
| CN (1) | CN102948040B (en) |
| DE (1) | DE102010030323A1 (en) |
| WO (1) | WO2011160873A2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104682650A (en) * | 2013-11-28 | 2015-06-03 | 德昌电机(深圳)有限公司 | Motor rotor and brushless motor with motor rotor |
| FR3036008B1 (en) * | 2015-05-07 | 2019-03-22 | Valeo Equipements Electriques Moteur | ROTOR OF ROTATING ELECTRIC MACHINE WITH AT LEAST ONE MAGNET PLATING ELEMENT |
| JP7443188B2 (en) | 2020-08-11 | 2024-03-05 | 日立Astemo株式会社 | Rotating electric machine rotor and electric drive system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1983634A2 (en) * | 2007-03-27 | 2008-10-22 | Miele & Cie. KG | Rotor, in particular for an electromotor of a circulating pump |
| DE102008018724A1 (en) * | 2008-04-14 | 2009-10-22 | Siemens Aktiengesellschaft | Secondary part i.e. rotor, for e.g. two-pole synchronous motor, has positioning elements e.g. steel tape, for positioning permanent magnets in magnet bags, and magnet bags with recesses for accommodation of positioning elements |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0724450B2 (en) * | 1984-12-06 | 1995-03-15 | 日本電装株式会社 | Magnet fixing structure for rotating electrical machines |
| US7932658B2 (en) * | 2007-03-15 | 2011-04-26 | A.O. Smith Corporation | Interior permanent magnet motor including rotor with flux barriers |
-
2010
- 2010-06-22 DE DE201010030323 patent/DE102010030323A1/en not_active Withdrawn
-
2011
- 2011-04-27 WO PCT/EP2011/056639 patent/WO2011160873A2/en active Application Filing
- 2011-04-27 EP EP11716272.7A patent/EP2586116A2/en not_active Withdrawn
- 2011-04-27 CN CN201180030948.6A patent/CN102948040B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1983634A2 (en) * | 2007-03-27 | 2008-10-22 | Miele & Cie. KG | Rotor, in particular for an electromotor of a circulating pump |
| DE102008018724A1 (en) * | 2008-04-14 | 2009-10-22 | Siemens Aktiengesellschaft | Secondary part i.e. rotor, for e.g. two-pole synchronous motor, has positioning elements e.g. steel tape, for positioning permanent magnets in magnet bags, and magnet bags with recesses for accommodation of positioning elements |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102010030323A1 (en) | 2011-12-22 |
| CN102948040A (en) | 2013-02-27 |
| EP2586116A2 (en) | 2013-05-01 |
| WO2011160873A2 (en) | 2011-12-29 |
| WO2011160873A3 (en) | 2012-09-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160106 |