CN108448767A - A kind of permasyn morot with new type rotor structure - Google Patents
A kind of permasyn morot with new type rotor structure Download PDFInfo
- Publication number
- CN108448767A CN108448767A CN201810450934.3A CN201810450934A CN108448767A CN 108448767 A CN108448767 A CN 108448767A CN 201810450934 A CN201810450934 A CN 201810450934A CN 108448767 A CN108448767 A CN 108448767A
- Authority
- CN
- China
- Prior art keywords
- type
- permanent magnets
- magnetic
- rotor
- rotor punching
- 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
Links
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
-
- 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
- H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
Abstract
A kind of permasyn morot with new type rotor structure, including stator punching, rotor punching and permanent magnet are provided with the V-type magnet structure being segmented with metal bridge on rotor punching, are characterized in that：Every four permanent magnets form a pole V-type magnetic circuit and are fixed on rotor punching, four permanent magnets are the identical rectangle of size, between two adjacent permanent magnets in the V-type vertex and bottom end of two avris of V-type is provided with magnetic bridge, magnetic conduction metal bridge is set between two adjacent permanent magnets of one avris of V-type, there are spacing between V-type vertex and the shaft of rotor punching that four permanent magnets are constituted, ventilation hole is provided in this spacing.The present invention every pole magnetic circuit use with metal bridge segmentation V-type magnet structure, make part magnetic linkage change magnetic flux path, be no longer pass through air gap be directly over segmentation metal bridge so that saturation of magnetic path is declined to increase permanent magnet leakage field, weak magnetism speed expansion ability enhance.
Description
Technical field：
The present invention relates to a kind of magnetoes, and in particular to a kind of permasyn morot with new type rotor structure.
Background technology：
As Chinese society industry, expanding economy and major transformation, permasyn morot are with a wide range of applications,
Its driving equipment as various universal machines, such as compressor, water pump, crusher and stock-removing machine, in metallurgy, oil, mine
In the various industrial and mining enterprises such as mountain, chemical industry, power station be used as prime mover, or as driven blower, coal pulverizer, rolling mill, hoist engine,
Belt feeder is applied.In the actual application of engineering, with the continuous improvement of permanent magnetic material performance and perfect, especially neodymium iron
Gradually reducing for the thermal stability of B permanent magnetic material and the improvement of corrosion resistance and price, promotes permasyn morot in state
Extensive use in anti-, industrial and agricultural production and daily life makes the research and development of permasyn morot enter a new rank
Section.
Driving motor as the core component of electric vehicle, directly produce the vehicle performance of electric vehicle by its performance quality
Raw great influence.Conventional synchronization motor generally uses electrical excitation, and rotor field can easily be accommodated.As shown in Fig. 2, synchronous permanent-magnet motor
Machine uses permanent magnet excitation mode, rotor field equally directly to be adjusted by changing the size of exciting current without image of Buddha electrical excitation
Section, in order to ensure that motor in the high-speed stable running in invariable power area, needs to realize by way of weak magnetism speed expansion, that is, passes through increasing
Sub- direct-axis current component of reordering weakens motor air gap magnetic field, realizes weak magnetism speed expansion.Therefore a relatively reasonable rotor is designed
Structure makes it that can meet the service requirement of motor and improves motor weak magnetism speed expansion ability, while opposite can also subtract
The usage amount of few rare-earth permanent magnet is very important.And the rotor magnetic circuit of existing motor be unfavorable for it is aeration-cooling in rotor,
Influence the service life of motor.
Invention content：
The present invention in order to overcome the deficiencies of the prior art, provides a kind of permasyn morot with new type rotor structure, often
Pole magnetic circuit is segmented magnet structure using v block bridge, per pole magnetic circuit between two adjacent permanent magnets in V-type vertex and V
The bottom end of two avris of type is provided with magnetic bridge, is located at setting magnetic conduction metal bridge between two adjacent permanent magnets of one avris of V-type.To
Part magnetic linkage is set to change magnetic flux path, being no longer pass through air gap and being directly over segmentation metal bridge keeps magnetic circuit full to increase permanent magnet leakage field
Decline with degree, the enhancing of weak magnetism speed expansion ability.
The permasyn morot with new type rotor structure of the present invention, including stator punching, rotor punching and permanent magnetism
Body is provided with the V-type magnet structure being segmented with metal bridge on rotor punching, and the technical solution of use is：Every four permanent magnets
A pole V-type magnetic circuit is formed to be fixed on rotor punching, four permanent magnets are the identical rectangle of size, in V-type vertex
Between the two adjacent permanent magnets and bottom end of two avris of V-type is provided with magnetic bridge, is located at two adjacent permanent magnets of one avris of V-type
Between be arranged magnetic conduction metal bridge.
As being further improved for the present invention, between four permanent magnet V-type vertex constituted and the shaft of rotor punching
There are spacing, it is provided with ventilation hole in this spacing, is convenient for the ventilation and heat of internal rotor, further increase motor uses the longevity
Life.
Beneficial effects of the present invention：Every pole magnetic circuit of the present invention is segmented permanent magnet using v block bridge, is located at one avris of V-type
Two adjacent permanent magnets between be arranged magnetic conduction metal bridge, to make a part of magnetic flux by metal bridge generate leakage field, make in main magnetic circuit
Magnetic flux reduces rotor direct axis reluctance and reduces, and plays the role of weak magnetism speed expansion.Between two adjacent permanent magnets in V-type vertex and V
The bottom end of two avris of type is provided with magnetic bridge, and being that leakage field is excessive in order to prevent causes permanent-magnet material utilization rate too low, Jin Erbao
It demonstrate,proves power of motor keeping in the reasonable scope, while magnetic conduction metal bridge is set between two adjacent permanent magnets of one avris of V-type
The usage amount for also reducing permanent magnet achievees the purpose that saving rare earth material reduces cost, and the present invention is also in rotor punching upper edge
Ventilation hole circumferentially has been opened up, has further increased the result of ventilating heat dissipation of internal rotor.
Description of the drawings：
Fig. 1 is the structural schematic diagram of the present invention.
Fig. 2 is existing rotor structure of permanent-magnet synchronous schematic diagram.
Specific implementation mode：
It referring to Fig.1, should be with the permasyn morot of new type rotor structure, including stator punching 1, rotor punching 2 and permanent magnetism
Body 3 is provided with the V-type magnet structure being segmented with metal bridge on rotor punching 2, and it is solid that every four permanent magnets 3 form a pole V-type magnetic circuit
It is scheduled on rotor punching 2, four permanent magnets 3 are the identical rectangle of size, between two adjacent permanent magnets in V-type vertex
It is provided with magnetic bridge 4, is located at setting magnetic conduction metal bridge 6 between two adjacent permanent magnets of one avris of V-type.The purpose that metal bridge 6 is arranged is
So that a part of magnetic flux is passed through metal bridge 6 and generate leakage field, so that the magnetic flux in main magnetic circuit is reduced, rotor direct axis reluctance reduces, and plays weak magnetic
Expansion speed acts on.Between two adjacent permanent magnets in V-type vertex and the bottom end of two avris of V-type be provided with magnetic bridge 4, be for
It prevents leakage field is excessive from causing permanent-magnet material utilization rate too low, and then ensures that power of motor is being kept in the reasonable scope, simultaneously
The usage amount that magnetic conduction metal bridge 6 also reduces permanent magnet 3 is set between two adjacent permanent magnets 3 of one avris of V-type, reaches saving
Rare earth material reduces the purpose of cost, there are spacing between four V-type vertex constituted of permanent magnet 3 and the shaft of rotor punching 2,
It is provided with ventilation hole 5 in this spacing, further increases the result of ventilating heat dissipation of internal rotor.
Claims (2)
1. a kind of permasyn morot with new type rotor structure, including stator punching（1）, rotor punching（2）And permanent magnetism
Body（3）, rotor punching（2）Upper setting v block bridge is segmented permanent magnet（3）, it is characterised in that：Every four permanent magnets（3）Form one
Pole V-type magnetic circuit is fixed on rotor punching（2）On, four permanent magnets（3）It is the identical rectangle of size, in V-type vertex
Between the two adjacent permanent magnets and bottom end of two avris of V-type is provided with magnetic bridge（4）, be located at two of one avris of V-type it is adjacent forever
Magnetic conduction metal bridge is set between magnet（6）.
2. a kind of permasyn morot with new type rotor structure as described in claim 1, it is characterised in that：Described four
A permanent magnet（3）The V-type vertex and rotor punching of composition（2）Shaft between there are spacing, be provided with ventilation hole in this spacing
（5）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810450934.3A CN108448767A (en) | 2018-05-11 | 2018-05-11 | A kind of permasyn morot with new type rotor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810450934.3A CN108448767A (en) | 2018-05-11 | 2018-05-11 | A kind of permasyn morot with new type rotor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108448767A true CN108448767A (en) | 2018-08-24 |
Family
ID=63203059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810450934.3A Pending CN108448767A (en) | 2018-05-11 | 2018-05-11 | A kind of permasyn morot with new type rotor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108448767A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109586442A (en) * | 2018-12-13 | 2019-04-05 | 中车株洲电机有限公司 | A kind of motor and its interchangeable rotor punching |
| CN111969743A (en) * | 2020-08-21 | 2020-11-20 | 南通大学 | Built-in V-shaped segmented high-speed permanent magnet synchronous motor rotor punching sheet, rotor and motor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1933297A (en) * | 2005-09-07 | 2007-03-21 | 株式会社东芝 | Electric rotating machine |
| CN102420482A (en) * | 2011-12-19 | 2012-04-18 | 南车株洲电机有限公司 | Permanent magnet synchronous motor and V-shaped rotor structure thereof |
| JP2012105482A (en) * | 2010-11-11 | 2012-05-31 | Toyota Motor Corp | Rotor for ipm motor and ipm motor |
| CN202276210U (en) * | 2011-10-09 | 2012-06-13 | 东营麦杰永磁电机有限公司 | Rotor structure of wide speed range permanent magnet motor |
| CN206412854U (en) * | 2017-01-05 | 2017-08-15 | 安徽东道新能源科技有限公司 | A kind of permanent-magnetic synchronous motor rotor and punching |
| EP3229348A1 (en) * | 2016-04-04 | 2017-10-11 | Valeo Equipements Electriques Moteur | Rotor for an electrical machine |
-
2018
- 2018-05-11 CN CN201810450934.3A patent/CN108448767A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1933297A (en) * | 2005-09-07 | 2007-03-21 | 株式会社东芝 | Electric rotating machine |
| JP2012105482A (en) * | 2010-11-11 | 2012-05-31 | Toyota Motor Corp | Rotor for ipm motor and ipm motor |
| CN202276210U (en) * | 2011-10-09 | 2012-06-13 | 东营麦杰永磁电机有限公司 | Rotor structure of wide speed range permanent magnet motor |
| CN102420482A (en) * | 2011-12-19 | 2012-04-18 | 南车株洲电机有限公司 | Permanent magnet synchronous motor and V-shaped rotor structure thereof |
| EP3229348A1 (en) * | 2016-04-04 | 2017-10-11 | Valeo Equipements Electriques Moteur | Rotor for an electrical machine |
| CN206412854U (en) * | 2017-01-05 | 2017-08-15 | 安徽东道新能源科技有限公司 | A kind of permanent-magnetic synchronous motor rotor and punching |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109586442A (en) * | 2018-12-13 | 2019-04-05 | 中车株洲电机有限公司 | A kind of motor and its interchangeable rotor punching |
| CN111969743A (en) * | 2020-08-21 | 2020-11-20 | 南通大学 | Built-in V-shaped segmented high-speed permanent magnet synchronous motor rotor punching sheet, rotor and motor |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180824 |
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| WD01 | Invention patent application deemed withdrawn after publication |