CN208479309U - A kind of permanent magnetism assist in synchronization magnetic resistance motor rotor - Google Patents
A kind of permanent magnetism assist in synchronization magnetic resistance motor rotor Download PDFInfo
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- CN208479309U CN208479309U CN201821290958.9U CN201821290958U CN208479309U CN 208479309 U CN208479309 U CN 208479309U CN 201821290958 U CN201821290958 U CN 201821290958U CN 208479309 U CN208479309 U CN 208479309U
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- permanent magnet
- magnetic resistance
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- resistance motor
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Abstract
The utility model discloses a kind of permanent magnetism assist in synchronization magnetic resistance motor rotors, comprising: rotor core, the rotor core are provided with along its circumferential equally distributed several magnetic barrier structure；The magnetic barrier structure includes: at least three layers of permanent magnet set gradually along the radial direction of the rotor core；In at least three layers of permanent magnet, the material of outermost and innermost two layers of permanent magnet is ferrite, and the material of other layer of permanent magnet is neodymium iron boron.The permanent magnetism assist in synchronization magnetic resistance motor rotor of the utility model has more preferably anti-demagnetization performance, reluctance torque utilization rate and structural strength, and can be effectively reduced motor cost.
Description
Technical field
The utility model relates to New energy automobile motor technical fields, particularly relate to a kind of permanent magnetism assist in synchronization reluctance motor
Rotor.
Background technique
Along with the raising of new-energy automobile popularity and vigorously supporting for country, the hair of new-energy automobile motor
Exhibition is also paid attention to by domestic and international research institution, colleges and universities, enterprise etc. in many ways.Currently, permanent magnetism assist in synchronization reluctance motor is in new energy
There is certain application on automobile, design principle is rationally to add magnetic in existing synchronous magnetic resistance motor rotor magnetic barrier
The introducing of steel, magnet steel will bring a part of permanent-magnet torque, further increase torque density, so that a degree of improve electricity
Engine efficiency；By reasonably designing, permanent magnetism assist in synchronization reluctance motor can have both permanent magnet synchronous motor and synchronous magnetic resistance motor
The characteristics of.
But there are still some disadvantages for existing permanent magnetism assist in synchronization reluctance motor, wherein the most outstanding be used as magnetic
The permanent magnet of steel generally selects the permanent magnet of NdFeB material, and NdFeB material price is higher, causes the increasing of manufacturing cost
Add.If the permanent magnet using other materials replaces, since the permanent magnet magnetic performance of other materials is poor, energy density is lower, no
Conducive to the miniaturization of motor；If facing permanent magnet using the NdFeB material of the lower trade mark and demagnetizing under bad working environments risk
The problem of increasing.
Utility model content
In view of this, having more the purpose of this utility model is that proposing a kind of permanent magnetism assist in synchronization magnetic resistance motor rotor
Good anti-demagnetization performance, reluctance torque utilization rate and structural strength, and can be effectively reduced motor cost.
Based on a kind of above-mentioned purpose permanent magnetism assist in synchronization magnetic resistance motor rotor provided by the utility model, comprising: rotor iron
Core；The rotor core is provided with along its circumferential equally distributed several magnetic barrier structure；The magnetic barrier structure includes: along described turn
At least three layers of permanent magnet that the radial direction of sub- iron core is set gradually；The material of the both ends part of the permanent magnet is ferrite, described
The material of the middle section of permanent magnet is neodymium iron boron.
In some alternative embodiments, the magnetic hinders structure further include: the radial direction along the rotor core is successively set
At least three layers of mounting groove set, the permanent magnet are arranged in the mounting groove.
In some alternative embodiments, magnet isolation tank is also respectively connected in the both ends of the mounting groove；The magnet isolation tank
It is in a certain angle between the mounting groove.
In some alternative embodiments, the setting range of the angle is 45 ° -70 °.
In some alternative embodiments, auxiliary permanent magnet is provided in the magnet isolation tank.
In some alternative embodiments, along the rotor core in the radial direction, in outermost and most interior
The material for the auxiliary permanent magnet being arranged in two magnet isolation tanks of side is ferrite, is arranged in other described magnet isolation tanks
The material of the auxiliary permanent magnet is neodymium iron boron.
In some alternative embodiments, it is provided between the axis hole of the rotor core and magnetic barrier structure along described
Rotor core is circumferentially equally distributed several to remove repeated hole.
In some alternative embodiments, the material of the middle section of the permanent magnet is low grade neodymium-iron-boron.
From the above it can be seen that permanent magnetism assist in synchronization magnetic resistance motor rotor provided by the utility model, magnetic hinders structure
Including at least three layers of permanent magnet being used in mixed way by ferrite and neodymium iron boron, improve anti-demagnetization performance, the magnetic resistance of motor
Torque utilization rate and structural strength；In addition, the permanent magnet being used in mixed way based at least three layers of ferrite and neodymium iron boron, Yi Jitie
The low price of oxysome, can be effectively reduced motor cost.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the permanent magnetism assist in synchronization magnetic resistance motor rotor structural schematic diagram of the utility model embodiment；
Fig. 2 is the partial enlargement diagram of the magnet isolation tank part in the utility model embodiment.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below in conjunction with specific embodiment, and
Referring to attached drawing, the utility model is further described.
The utility model embodiment provides a kind of permanent magnetism assist in synchronization magnetic resistance motor rotor, with reference to Fig. 1, the permanent magnetism
Assist in synchronization magnetic resistance motor rotor, comprising: rotor core 01.In the present embodiment, the rotor uses built-in structure, permanent magnetism
Body 101 is set in rotor core 01.Rotor core 01 is provided with along its circumferential equally distributed several magnetic barrier structure 1.
Structure 1 is hindered for magnetic described in one comprising at least three layers set gradually along the radial direction of rotor core 01 are forever
Magnet 101.Implement needs according to specific, the quantity of permanent magnet 101 can be with flexible setting, and such as three layers, four layers or more.It is logical
The permanent magnet 101 for crossing multilayer setting can increase the convex grey subset of motor, reluctance torque utilization rate be improved, to improve motor
Can, be conducive to the high efficiency and miniaturization of electric system.
For permanent magnet 101 described in one, the material of both ends part 1011 is ferrite, intermediate portion 1012
Material is neodymium iron boron.In the present embodiment, the material of permanent magnet 101 is by the way of ferrite and neodymium iron boron subsection setup.Due to
Ferrite Material has high-temperature stability, it is contemplated that motor demagnetization is demagnetized since corner at first, therefore by the two of permanent magnet 101
End part 1011 is set as Ferrite Material；Correspondingly, setting NdFeB material for the middle section 1012 of permanent magnet 101.
Wherein, preferably, the low grade neodymium-iron-boron of material selection of the middle section 1012 of permanent magnet 101, it is further reduce at
This.By above-mentioned set-up mode, the anti-degaussing ability of high temperature of motor can be effectively improved.
In the present embodiment, magnetic hinders structure 1 further include: at least three layers installation set gradually along the radial direction of rotor core 01
Slot, permanent magnet 101 are arranged in mounting groove.The set-up mode and permanent magnet 101 of mounting groove correspond, each permanent magnet
101 are arranged in a mounting groove；The shape and 101 shape of permanent magnet of mounting groove are adapted, and permanent magnet 101 is by setting, gluing
It connects etc. after modes are arranged in mounting groove, will not see mounting groove from the appearance, therefore mounting groove is not straight in Figure of description
It connects and shows.
Further, with reference to Fig. 1 and Fig. 2, magnet isolation tank 102 is also respectively connected in the both ends of mounting groove；Magnet isolation tank 102 is peace
The extension of tankage both ends further out.Magnet isolation tank 102 is located at rotor q axis, plays separated magnetic effect, increases salient pole
Rate.Two magnet isolation tanks 102 are also in a certain angle between mounting groove, i.e., see on the whole, and mounting groove is in the knot of similar " u "-shaped
Structure.Specifically, the setting range of the angle between magnet isolation tank 102 and mounting groove is 45 ° -70 °, according to there is specific application environment, lead to
The angle being reasonably arranged between the magnet isolation tank 102 and mounting groove is crossed, torque output capability can be effectively improved, reduces torque pulsation
And cogging torque.
In an alternative embodiment, it to enhance motor torque fan-out capability, also can be set in magnet isolation tank 102
Permanent magnet will be arranged in magnet isolation tank 102 in the present embodiment to embody the difference with the permanent magnet 101 in mounting groove above-mentioned
Permanent magnet be known as auxiliary permanent magnet.
Further, corresponding to multilayer mounting groove, for auxiliary permanent magnet in the magnet isolation tank 102 of different layers is arranged in,
Use different materials.Specifically, in the radial direction, being in outermost and innermost two magnet isolation tanks along rotor core 01
The material for the auxiliary permanent magnet being arranged in 102 is ferrite, and the material for the auxiliary permanent magnet being arranged in other magnetic slots 102 is
Neodymium iron boron.By above-mentioned setting, it can further enhance that motor is anti-to remove magnetic property.
In an alternative embodiment, with reference to Fig. 1, the axis hole 101 and magnetic of rotor core 01 are provided with edge between hindering structure 1
Rotor core 01 is circumferential equally distributed several to remove repeated hole 102.By going the setting of repeated hole 102, rotor entirety can reduce
Weight realizes the lightweight of motor mechanism.
It should be noted that in the above embodiments of the present invention by taking six pole rotor structure as an example, i.e., the described magnetic barrier
There are six the corresponding settings of structure 1；Obviously, the rotor structure of the utility model embodiment can also apply to using other numbers of poles
Rotor.
It should be understood by those ordinary skilled in the art that: the discussion of any of the above embodiment is exemplary only, not
It is intended to imply that the scope of the present disclosure (including claim) is limited to these examples；Under the thinking of the utility model, the above reality
Applying can also be combined between the technical characteristic in example or different embodiments, and there are the utility model as described above
Many other variations of different aspect, for simplicity, they are not provided in details.Therefore, all spirit in the utility model
Within principle, any omission, modification, equivalent replacement, improvement for being made etc. should be included in the protection scope of the utility model
Within.
Claims (8)
1. a kind of permanent magnetism assist in synchronization magnetic resistance motor rotor, comprising: rotor core, which is characterized in that the rotor core setting
Have along its circumferential equally distributed several magnetic barrier structure；Magnetic barrier structure includes: successively to set along the radial direction of the rotor core
At least three layers of permanent magnet set；The material of the both ends part of the permanent magnet is ferrite, the middle section of the permanent magnet
Material is neodymium iron boron.
2. permanent magnetism assist in synchronization magnetic resistance motor rotor according to claim 1, which is characterized in that the magnetic barrier structure is also wrapped
Include: at least three layers of mounting groove set gradually along the radial direction of the rotor core, the permanent magnet are arranged in the mounting groove.
3. permanent magnetism assist in synchronization magnetic resistance motor rotor according to claim 2, which is characterized in that the both ends of the mounting groove
Magnet isolation tank is also respectively connected；It is in a certain angle between the magnet isolation tank and the mounting groove.
4. permanent magnetism assist in synchronization magnetic resistance motor rotor according to claim 3, which is characterized in that the setting model of the angle
Enclose is 45 ° -70 °.
5. permanent magnetism assist in synchronization magnetic resistance motor rotor according to claim 4, which is characterized in that setting in the magnet isolation tank
There is auxiliary permanent magnet.
6. permanent magnetism assist in synchronization magnetic resistance motor rotor according to claim 5, which is characterized in that along the rotor core
In the radial direction, the material for the auxiliary permanent magnet being arranged in outermost and innermost two magnet isolation tanks is
The material of ferrite, the interior auxiliary permanent magnet being arranged of other described magnet isolation tanks is neodymium iron boron.
7. permanent magnetism assist in synchronization magnetic resistance motor rotor according to claim 1, which is characterized in that the axis of the rotor core
It is provided between hole and magnetic barrier structure and several removes repeated hole along the rotor core is circumferentially equally distributed.
8. permanent magnetism assist in synchronization magnetic resistance motor rotor described in -7 any one according to claim 1, which is characterized in that it is described forever
The material of the middle section of magnet is low grade neodymium-iron-boron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821290958.9U CN208479309U (en) | 2018-08-10 | 2018-08-10 | A kind of permanent magnetism assist in synchronization magnetic resistance motor rotor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821290958.9U CN208479309U (en) | 2018-08-10 | 2018-08-10 | A kind of permanent magnetism assist in synchronization magnetic resistance motor rotor |
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| CN208479309U true CN208479309U (en) | 2019-02-05 |
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| CN201821290958.9U Active CN208479309U (en) | 2018-08-10 | 2018-08-10 | A kind of permanent magnetism assist in synchronization magnetic resistance motor rotor |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109768645A (en) * | 2019-02-14 | 2019-05-17 | 河北工业大学 | A kind of permanent magnet assist type synchronous magnetic resistance motor rotor structure and its design method |
| CN110556946A (en) * | 2019-10-12 | 2019-12-10 | 哈尔滨理工大学 | Permanent magnet auxiliary synchronous reluctance motor rotor device |
| CN111682670A (en) * | 2020-06-18 | 2020-09-18 | 中车株洲电机有限公司 | Electric automobile, permanent-magnet machine and mixed rotor punching thereof |
| CN112152356A (en) * | 2020-08-28 | 2020-12-29 | 浙江零跑科技有限公司 | Permanent magnet auxiliary synchronous reluctance motor for electric automobile |
| CN112636493A (en) * | 2020-12-15 | 2021-04-09 | 北京航空航天大学 | Short-circuit-resistant high-speed high-power permanent magnet auxiliary type synchronous reluctance starting generator |
| CN113224863A (en) * | 2021-06-03 | 2021-08-06 | 哈尔滨理工大学 | Novel permanent magnet auxiliary synchronous reluctance motor structure |
| CN113615043A (en) * | 2019-03-20 | 2021-11-05 | 麦格纳国际公司 | Permanent magnet auxiliary type synchronous reluctance motor |
| CN114094738A (en) * | 2021-11-16 | 2022-02-25 | 珠海格力电器股份有限公司 | Self-starting permanent magnet auxiliary synchronous reluctance motor rotor and motor |
| CN114123581A (en) * | 2021-11-16 | 2022-03-01 | 珠海格力电器股份有限公司 | Self-starting permanent magnet auxiliary synchronous reluctance motor rotor and motor |
| CN114123580A (en) * | 2021-11-16 | 2022-03-01 | 珠海格力电器股份有限公司 | Self-starting permanent magnet auxiliary synchronous reluctance motor rotor and motor |
| CN114400809A (en) * | 2021-12-30 | 2022-04-26 | 中车永济电机有限公司 | Axial superposition type permanent magnet auxiliary synchronous reluctance motor rotor structure |
| CN114513070A (en) * | 2022-01-19 | 2022-05-17 | 浙江零跑科技股份有限公司 | Novel motor rotor |
| DE102021202917A1 (en) | 2021-03-25 | 2022-09-29 | Zf Friedrichshafen Ag | Electrical machine and method for manufacturing an electrical machine |
-
2018
- 2018-08-10 CN CN201821290958.9U patent/CN208479309U/en active Active
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109768645A (en) * | 2019-02-14 | 2019-05-17 | 河北工业大学 | A kind of permanent magnet assist type synchronous magnetic resistance motor rotor structure and its design method |
| CN113615043A (en) * | 2019-03-20 | 2021-11-05 | 麦格纳国际公司 | Permanent magnet auxiliary type synchronous reluctance motor |
| CN110556946A (en) * | 2019-10-12 | 2019-12-10 | 哈尔滨理工大学 | Permanent magnet auxiliary synchronous reluctance motor rotor device |
| CN111682670A (en) * | 2020-06-18 | 2020-09-18 | 中车株洲电机有限公司 | Electric automobile, permanent-magnet machine and mixed rotor punching thereof |
| CN112152356A (en) * | 2020-08-28 | 2020-12-29 | 浙江零跑科技有限公司 | Permanent magnet auxiliary synchronous reluctance motor for electric automobile |
| CN112636493A (en) * | 2020-12-15 | 2021-04-09 | 北京航空航天大学 | Short-circuit-resistant high-speed high-power permanent magnet auxiliary type synchronous reluctance starting generator |
| DE102021202917A1 (en) | 2021-03-25 | 2022-09-29 | Zf Friedrichshafen Ag | Electrical machine and method for manufacturing an electrical machine |
| CN113224863A (en) * | 2021-06-03 | 2021-08-06 | 哈尔滨理工大学 | Novel permanent magnet auxiliary synchronous reluctance motor structure |
| CN114094738A (en) * | 2021-11-16 | 2022-02-25 | 珠海格力电器股份有限公司 | Self-starting permanent magnet auxiliary synchronous reluctance motor rotor and motor |
| CN114123581A (en) * | 2021-11-16 | 2022-03-01 | 珠海格力电器股份有限公司 | Self-starting permanent magnet auxiliary synchronous reluctance motor rotor and motor |
| CN114123580A (en) * | 2021-11-16 | 2022-03-01 | 珠海格力电器股份有限公司 | Self-starting permanent magnet auxiliary synchronous reluctance motor rotor and motor |
| CN114123580B (en) * | 2021-11-16 | 2023-02-28 | 珠海格力电器股份有限公司 | Self-starting permanent magnet auxiliary synchronous reluctance motor rotor and motor |
| CN114400809A (en) * | 2021-12-30 | 2022-04-26 | 中车永济电机有限公司 | Axial superposition type permanent magnet auxiliary synchronous reluctance motor rotor structure |
| CN114513070A (en) * | 2022-01-19 | 2022-05-17 | 浙江零跑科技股份有限公司 | Novel motor rotor |
| CN114513070B (en) * | 2022-01-19 | 2024-03-08 | 浙江零跑科技股份有限公司 | Novel motor rotor |
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