CN104518584B - Permanent magnetic electric machine rotor iron core - Google Patents
Permanent magnetic electric machine rotor iron core Download PDFInfo
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- CN104518584B CN104518584B CN201310451073.8A CN201310451073A CN104518584B CN 104518584 B CN104518584 B CN 104518584B CN 201310451073 A CN201310451073 A CN 201310451073A CN 104518584 B CN104518584 B CN 104518584B
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- iron core
- rotor iron
- core
- groove
- electric machine
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Abstract
The invention discloses a kind of rotor core, including internal rotor iron core and the outer rotor iron core being set in outside described internal rotor iron core, multiple first groove it is provided with in the outer rim of internal rotor iron core, the inner edge of outer rotor iron core is arranged and the most multiple second groove of multiple first grooves, being provided with voussoir in the first corresponding groove and the second groove, what gap employing fiberglass reinforced plastics (fiberglass) between internal rotor iron core and outer rotor iron core was formed connects every magnetosphere.Rotor core is made internal rotor iron core and outer rotor iron core two parts by the present invention, inner and outer Rotator iron core pours connection by having the fiberglass of magnetism isolating effect, effectively reduce the rare-earth permanent-magnet electric machine leakage field that tangential magnet-steel is arranged, reduce rare-earth permanent-magnet electric machine magnet steel consumption, thus reduce manufacturing cost.The rotor core of the present invention can preferably bear the tangential force and radial force produced in rare-earth permanent-magnet electric machine running, improves rigidity and the globality of rotor core.
Description
Technical field
The present invention relates to a kind of rare-earth permanent magnet motor rotor core structure, belong to technical field of motors.
Background technology
Modem rare-earth magneto all uses higher magnetic loading, for not making permanent magnet in motor
Magnetic leakage factor is excessive and causes permanent magnet material utilization rate too low, typically can take various every magnetic measure.
The most typical every magnetic measure, it is to make magnetic flux reach saturated by setting every magnetic magnetic bridge to rise
Limit the effect of leakage field.The least every magnetic magnetic bridge width, this position magnetic resistance is the biggest, more can limit
Leakage magnetic flux.But magnetic bridge width is too small will make the punching mechanical strength making rotor be deteriorated, and contract
The service life of short punch die.
Also being a critical size every magnetic magnetic bridge length, result of calculation shows, if every magnetic magnetic bridge
Length is it cannot be guaranteed that certain size, even if magnetic bridge width is little, the magnetism isolating effect of magnetic bridge is also by bright
Aobvious decline.But when after the size that magnetic bridge length reaches certain, being further added by length, magnetism isolating effect is not
Change significantly again, and excessive magnetic bridge length will make rotor mechanical strength decline, be manufactured into
This raising.
The rare-earth permanent-magnet electric machine of tangential excitation every magnetic measure typically use non magnetic rotating shaft or
Adding every magnetic copper sheathing or aluminum set in magnetic rotating shaft, this makes the manufacturing cost of rare-earth permanent-magnet electric machine increase,
Manufacturing process becomes complicated.In recent years, some enterprise have employed air and adds every magnetic magnetic bridge every magnetic
New technique, achieves certain effect.But, when the capacity of rare-earth permanent-magnet electric machine is bigger,
This structure makes the mechanical strength of rotor core seem not enough, the reliability of rare-earth permanent-magnet electric machine
Decline.
Summary of the invention
In view of drawbacks described above present in prior art, the present invention provides one can improve Permanent Magnet and Electric
Machine is every magnetic property and the rotor core structure of integral rigidity.
The present invention adopts the following technical scheme that a kind of rotor core, by internal rotor iron core and sheathed
Outer rotor iron core composition outside internal rotor iron core, the outer rim of internal rotor iron core is provided with multiple
First groove, the inner edge of outer rotor iron core is provided with the most multiple with multiple first grooves
Second groove, is provided with voussoir, internal rotor ferrum between the first corresponding groove and the second groove
Gap between core and outer rotor iron core uses fiberglass reinforced plastics (fiberglass) to be formed
Connect every magnetosphere.
Second groove is actually dove-tail, with the voussoir being embedded in internal rotor iron core outer rim
The force structure that the formation of falling dovetail " is inlayed ".
Voussoir material can be aluminium alloy, copper alloy, rustless steel etc..
Compared with prior art, the rotor core of the present invention and the feature of rare-earth permanent-magnet electric machine are:
1, rotor core is made internal rotor iron core and outer rotor iron core two parts by the present invention, interior,
Outer rotor iron core pours connection by having the fiberglass of magnetism isolating effect, effectively reduces tangential magnetic
The rare-earth permanent-magnet electric machine leakage field that steel is arranged, reduces rare-earth permanent-magnet electric machine magnet steel consumption, thus drops
Low manufacturing cost.
2, the rotor core of the present invention can preferably bear in rare-earth permanent-magnet electric machine running and produce
Tangential force and radial force, improve rigidity and the globality of rotor core.
Accompanying drawing explanation
Fig. 1 is the rotor core schematic diagram of the present invention；
Fig. 2 is the internal rotor iron core schematic diagram forming rotor core of the present invention；
Fig. 3 is the outer rotor iron core schematic diagram forming rotor core of the present invention；
Fig. 4 is the voussoir schematic diagram of rotor core of the present invention.
Description of reference numerals
1-outer rotor iron core 2-internal rotor iron core
3-the first groove 4-the second groove
5-voussoir 6-fiberglass
Detailed description of the invention
With specific embodiment, the present invention is described in further detail below in conjunction with the accompanying drawings, but does not makees
For limitation of the invention.
As it is shown in figure 1, a kind of rotor core of the embodiment of the present invention, including internal rotor iron core 2
With the outer rotor iron core 1 being set in outside internal rotor iron core 2, also it is arranged on internal rotor iron core 2 He
Voussoir 5 between outer rotor iron core 1 and every magnetosphere fiberglass 6.
Shown in Fig. 1,2,3, the outer rim of internal rotor iron core 2 is provided with multiple first recessed
Groove 3, after internal rotor iron core 2 laminates, is embedded in voussoir 5 in first groove 3, wedge simultaneously
Block 5 one end is exposed.The inner edge of outer rotor iron core 1 is provided with multiple second groove 4, the first groove
3 with the quantity of the second groove 4, relative position consistency, outer rotor iron core 1 is set in internal rotor
Outside iron core 2, making the first groove 3 align one by one with the second groove 4, voussoir 5 exposes simultaneously
One end is set in the second groove 4, but not with the second groove 4 peripheral contact.Adjust internal rotor ferrum
Core 2 and the concentricity of outer rotor iron core 1, fixing, now internal rotor iron core 2 and outer rotor ferrum
Between core 1, between voussoir 5 and outer rotor iron core 1, there is a space, this space is filled glass
Glass steel 6, is formed every magnetosphere.
Second groove is actually dove-tail, and one end that voussoir 5 exposes is the voussoir of falling dovetail,
These two parts inlay the force structure that formation " is inlayed " mutually.
In the present embodiment, voussoir 5 material is aluminium alloy.
The rotor core of the present embodiment and motor, make rotor core internal rotor iron core and turn outward
Sub-iron core two parts, inner and outer Rotator iron core pours connection by having the fiberglass of magnetism isolating effect,
Effectively reduce the rare-earth permanent-magnet electric machine leakage field that tangential magnet-steel is arranged, reduce rare-earth permanent-magnet electric machine
Magnet steel consumption, thus reduce manufacturing cost.The rotor core of the present embodiment can preferably bear
The tangential force produced in rare-earth permanent-magnet electric machine running and radial force, improve rotor core
Rigidity and globality.
Above example is only the exemplary embodiment of the present invention, is not used in the restriction present invention, this
The protection domain of invention is defined by the claims.
Claims (3)
1. permanent magnetic electric machine rotor iron core, it is characterised in that include internal rotor iron core and be set in institute
State the outer rotor iron core outside internal rotor iron core, the outer rim of described internal rotor iron core is provided with multiple
First groove, the inner edge of described outer rotor iron core is arranged and multiple described first groove one_to_one corresponding
Multiple second grooves, be provided with voussoir between corresponding described first groove and the second groove,
Gap between internal rotor iron core and outer rotor iron core, all adopt together with the gap around voussoir
Solidify with fiberglass reinforced plastics, form fiberglass every magnetosphere.
Rotor core the most according to claim 1, it is characterised in that described in be embedded in
Voussoir in rotor core uses non-magnet material to make, described non-magnet material be aluminium alloy or
Copper alloy or rustless steel.
Rotor core the most according to claim 1, it is characterised in that in outer rotor iron core
Described second groove that edge is arranged is actually dove-tail, and is embedded in internal rotor iron core outer rim
The force structure " inlayed " of the formation of falling dovetail of voussoir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310451073.8A CN104518584B (en) | 2013-09-27 | 2013-09-27 | Permanent magnetic electric machine rotor iron core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310451073.8A CN104518584B (en) | 2013-09-27 | 2013-09-27 | Permanent magnetic electric machine rotor iron core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104518584A CN104518584A (en) | 2015-04-15 |
| CN104518584B true CN104518584B (en) | 2017-01-04 |
Family
ID=52793470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310451073.8A Active CN104518584B (en) | 2013-09-27 | 2013-09-27 | Permanent magnetic electric machine rotor iron core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104518584B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017222099A1 (en) * | 2017-12-06 | 2019-06-06 | Baumüller Nürnberg GmbH | Rotor of an electric machine |
| CN109067031B (en) * | 2018-08-15 | 2019-11-19 | 珠海格力电器股份有限公司 | A kind of vibration damping rotor core, vibration damping rotor and motor |
| CN109302007B (en) * | 2018-10-12 | 2023-09-19 | 赣州诚正稀土新材料股份有限公司 | Rare earth permanent magnet motor rotor core assembly equipment |
| CN112072816B (en) * | 2020-09-28 | 2022-03-15 | 珠海格力电器股份有限公司 | Rotor structure and motor with same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0686485A (en) * | 1992-09-04 | 1994-03-25 | Matsushita Electric Ind Co Ltd | Rotor of permanent magnet motor |
| CN2840480Y (en) * | 2005-10-11 | 2006-11-22 | 上海万德风力发电股份有限公司 | Neodymium-ferroboron permanent magnetic electric machine rotor used on wind power generator |
| CN202918083U (en) * | 2012-10-29 | 2013-05-01 | 江苏富天江电子电器有限公司 | New type motor rotor injection molding structure |
| CN203632381U (en) * | 2013-09-27 | 2014-06-04 | 安徽明腾永磁机电设备有限公司 | Permanent magnet motor rotor iron core |
-
2013
- 2013-09-27 CN CN201310451073.8A patent/CN104518584B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0686485A (en) * | 1992-09-04 | 1994-03-25 | Matsushita Electric Ind Co Ltd | Rotor of permanent magnet motor |
| CN2840480Y (en) * | 2005-10-11 | 2006-11-22 | 上海万德风力发电股份有限公司 | Neodymium-ferroboron permanent magnetic electric machine rotor used on wind power generator |
| CN202918083U (en) * | 2012-10-29 | 2013-05-01 | 江苏富天江电子电器有限公司 | New type motor rotor injection molding structure |
| CN203632381U (en) * | 2013-09-27 | 2014-06-04 | 安徽明腾永磁机电设备有限公司 | Permanent magnet motor rotor iron core |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104518584A (en) | 2015-04-15 |
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| 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 | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Novel high-efficiency permanent magnet motor rotor core Effective date of registration: 20181204 Granted publication date: 20170104 Pledgee: Anhui Rural Commercial Bank branch Limited by Share Ltd Changfeng Shuangfeng Pledgor: Anhui Mingteng Permanent-magnetic Machinery & Electrical Equipment Co., Ltd. Registration number: 2018340000697 |