CN107959361A - The stator of permanent magnet torque motor and the permanent magnet torque motor with high torque density - Google Patents
The stator of permanent magnet torque motor and the permanent magnet torque motor with high torque density Download PDFInfo
- Publication number
- CN107959361A CN107959361A CN201610906992.3A CN201610906992A CN107959361A CN 107959361 A CN107959361 A CN 107959361A CN 201610906992 A CN201610906992 A CN 201610906992A CN 107959361 A CN107959361 A CN 107959361A
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- Prior art keywords
- stator
- permanent magnet
- rotor
- torque motor
- motor
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- 230000005389 magnetism Effects 0.000 claims abstract description 24
- 238000005520 cutting process Methods 0.000 claims abstract description 19
- 238000004804 winding Methods 0.000 claims abstract description 15
- 239000003566 sealing material Substances 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000956 alloy Substances 0.000 claims abstract description 6
- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 5
- 210000000515 tooth Anatomy 0.000 claims description 11
- 239000013078 crystal Substances 0.000 claims description 5
- 238000004080 punching Methods 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 2
- 239000011162 core material Substances 0.000 description 25
- 230000000052 comparative effect Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000004907 flux Effects 0.000 description 3
- 238000003491 array Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005405 multipole Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000009467 reduction Effects 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
- H02K1/12—Stationary parts of the magnetic circuit
-
- 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
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Abstract
The present invention provides a kind of stator of permanent magnet torque motor, the notch of each stator between cog is sealed by sealing material, make stator teeth overall structure in a ring, stator yoke is in another overall structure, the two is separated each other, therefore in stator assembly technology, it can plug together or fasten by card slot after each armature winding is assembled on corresponding stator tooth and directly the two links together, it is simple process and low cost, efficient, easy to modularized production.In addition, advantageously reduce the loss of electric machine when nanocrystalline magnetically soft alloy material or high grade silicon steel material are selected in stator core；When rotor permanent magnet is core support, and cutting orientation magnetizing permanent magnet and radial magnetizing permanent magnetism body are disposed alternately at the working gas gap side surface of iron core, be conducive to improve motor torque density.
Description
Technical field
The present invention relates to motor field, more particularly to a kind of efficiently high torque density permanent magnet torque motor.
Background technology
Permanent magnet torque motor includes stator and rotor, and stator includes stator core and armature winding, and stator core includes fixed
Sub- yoke portion and stator teeth, stator teeth are made of several stator tooths, and armature winding detours on each stator tooth, each adjacent stators
It is groove between tooth.At present, stator yoke and stator teeth are structure as a whole, in the assembly technology of stator, usually by each electricity
Pivot winding is assemblied on corresponding stator tooth.Winding is leaked out outside groove in order to prevent, generally uses sealing material at present by each notch
Sealing, so as to play the function of slot wedge.But since general slot wedge is un-conducted magnetic material so that motor, will there are cogging torque
Influence the performance of motor.In addition, the process costs of sealing groove mouth are high, efficiency is low, especially when slot number increase, technique is cumbersome,
The cost of manufacture of stator is added, reduces producing efficiency, is not suitable with large-scale production.
In addition, the loss of permanent magnet torque motor is one of the problem of needing scientific worker to consider.Permanent magnet torque motor
Loss is mainly derived from the resistance loss of winding and the magnetic hysteresis and eddy-current loss of stator core material.At present, permanent magnet motor stator
Iron core is mainly using traditional silicon steel sheet, and the core loss of this material is larger, and especially in high-frequency electric machines, core loss is particularly tight
Weight, constrains application of the motor in high-frequency high-speed occasion.
Motor applied to occasions such as robot, industrial drives, computer external, wheel hub drivings requires torque density big,
Therefore multi-pole magnetic pole is usually taken in the design to reduce every pole magnetic flux, and then can reduce corresponding stator yoke size, so that
The motor of same power is reduced volume, improve the torque density of motor (number of poles is between 10-30).But at the same time, phase
With (such as 3000rpm) under rotating speed, number of poles increases so that frequency increase, the core loss of unit volume (1.3 times with frequency of supply
Side is directly proportional) increase therewith.If taking 10 pairs of poles, frequency of supply is up to 500Hz, if using identical material and magnetic flux density
Words, the loss of the electric machine stator iron unit volume is by for 20 times of common power frequency motor, if not taking reduction core loss
Or cooling provision, motor will be unable to use.
The content of the invention
In view of the state of the art of above-mentioned permanent magnet torque motor, the present invention provides a kind of stator knot of permanent magnet torque motor
Structure, the structure are conducive to improve the assembly technology of stator, and cost is low, efficient.
Technical scheme is as follows：
A kind of stator of permanent magnet torque motor, including stator core and armature winding, stator core include stator yoke and
Stator teeth, stator teeth are made of several stator tooths, and armature winding detours on each stator tooth, are between each adjacent stators tooth
Groove；It is characterized in that：
The stator yoke is separated with stator teeth；
Each notch is sealed by sealing material, the sealing material of each stator tooth and notch is formed ring junction
Structure；
The stator yoke can be linked together with stator teeth by card slot insert-type, i.e. in the end of each stator tooth
And the opposite position of stator yoke is formed with the convex strip to match in pairs and concave card slot, along the axis of the loop configuration
To together with each convex strip to match in pairs can be plugged together with concave card slot；
Alternatively, the stator yoke can be linked together with stator teeth by buckle-type, i.e. each fixed described in locating plate
The end of sub- tooth and the opposite position of stator yoke are formed with the protrusion and depression to match in pairs, along the loop configuration
Axial, each protrusion to match in pairs can be fastened togather with depression.
In the stator of this structure, the notch of each stator between cog is sealed by sealing material, makes stator teeth in a ring
Overall structure, stator yoke are in another overall structure, the two is separated each other, therefore in stator assembly technology, by each armature
Winding can be plugged together or fastened by card slot after being assemblied on corresponding stator tooth and directly the two links together, technique letter
Single, cost is low, efficient, the cumbersome technique of independent sealing groove mouth is eliminated, easy to modularized production；On the other hand, due to for
Closed slot, can also reduce cogging torque and the torque pulsation of motor, improve the torque density of permanent magnet torque motor.
In view of the loss of permanent magnet torque motor, preferably, heretofore described stator core uses nanometer crystal alloy
Material or high grade silicon steel material, the core loss of this material are smaller, it is possible to achieve low-loss, height under high frequency service condition
Torque density is run, and the efficiency of motor increases.Further preferably, the stator core is overrided to form by punching.
Preferably, the sealing material uses nanometer crystal alloy material.
The permanent magnet torque motor formed using the stator of the present invention includes stator and rotor, between the stator and rotor
For working gas gap.At present, the rotor of permanent magnet torque motor uses traditional magnet structure mostly, turns compared to induced moment motor
Square density increases, but is applied to require the occasion torque density such as aerospace, robot of higher still to be apparent not enough, therefore has
Document introduction improves motor torque density using halbach permanent magnet arrays structure, improves electric efficiency.It is but traditional
In the processing of halbach permanent magnet arrays structure system there are permanent magnet magnetize complexity the problem of, the problems such as installation is inconvenient.
For this reason, the present invention further improves rotor structure, it is by the structure of rotor core support, rotor by rotor design
Iron core sets rotor permanent magnet towards the surface of stator, i.e. rotor permanent magnet is arranged on the working gas gap side of rotor core；And
And rotor permanent magnet includes cutting orientation magnetizing permanent magnet and radial magnetizing permanent magnetism body, which, which alternates to be arranged on, turns
The working gas gap side of sub- iron core.The radial magnetizing permanent magnetism body refers to that its magnetic direction is directed toward working gas gap or away from work gas
Gap.When the magnetic direction of the radial magnetizing permanent magnetism body is directed toward working gas gap, the magnetic field side of its both sides cutting orientation magnetizing permanent magnet
To the direction radial magnetizing permanent magnetism body；When the magnetic direction of the radial magnetizing permanent magnetism body is backwards to working gas gap, its two lateral incision
Deviate from the radial magnetizing permanent magnetism body to the magnetic direction of charging permanent magnet.
That is, one aspect of the present invention uses magnet structure, increases compared to induced moment motor torque density, the opposing party
Face design rotor permanent magnet is cutting orientation magnetizing permanent magnet and radial magnetizing permanent magnetism body, further increases motor torque density, and
And compared to the Halbach array structure of permanent magnet, magnetizing direction is simplified, reduces the complexity that magnetizes.
Further preferably, the cutting orientation magnetizing permanent magnet and radial magnetizing permanent magnetism body are the permanent magnet for cutting arc processing.
Further preferably, the width ratio of the cutting orientation magnetizing permanent magnet and radial magnetizing permanent magnetism body is 0.25-1.
Further preferably, the rotor core is hollow-core construction.
Motor torque density is improved in order to further improve, realizes that the pole groove of concentratred winding form coordinates, preferably, this
Number of stator slots described in invention and rotor number of poles are combined as：Number of pole-pairs is p, slot number Q, and the number of pole-pairs p of unit motor1=
P/GCD (p, Q), the slot number Q of unit motor1=Q/GCD (p, Q)=2p1± 1, and Q=3n, Q1=3n1, wherein p1、n、n1For just
Integer.
Brief description of the drawings
Fig. 1 is the cross-sectional view of the efficient high torque density permanent magnet torque motor in the embodiment of the present invention 1；
Fig. 2 is the cross-section structure of the stator teeth of the efficient high torque density permanent magnet torque motor in the embodiment of the present invention 1
Schematic diagram；
Fig. 3 is the cross-section structure of the stator yoke of the efficient high torque density permanent magnet torque motor in the embodiment of the present invention 1
Schematic diagram；
Fig. 4 is the magnetic direction figure of the rotor permanent magnet in Fig. 1；
Fig. 5 is efficient high torque density permanent magnet torque motor and traditional face paste structure Permanent Magnet and Electric in the embodiment of the present invention 1
Machine air gap radial direction flux density compares；
Fig. 6 is efficient high torque density permanent magnet torque motor and traditional face paste structure Permanent Magnet and Electric in the embodiment of the present invention 1
Machine torque-current Property comparison；
Fig. 7 is that the stator teeth cross-section structure of the efficient high torque density permanent magnet torque motor in the embodiment of the present invention 2 shows
It is intended to；
Fig. 8 is that the stator yoke cross-section structure of the efficient high torque density permanent magnet torque motor in the embodiment of the present invention 2 shows
It is intended to.
Reference numeral in attached drawing 1-8 is：1st, stator；2nd, rotor；3rd, air gap；11st, stator yoke；12nd, stator teeth；13
Stator slot；14th, armature winding；21st, cutting orientation magnetizing permanent magnet；22nd, radial magnetizing permanent magnetism body；23rd, rotor core；41st, sealing material
Material；51st, it is raised；52nd, it is recessed；53rd, concave card slot；54th, convex strip.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right with reference to the accompanying drawings and embodiments
The present invention is further elaborated.It is to be appreciated that specific embodiment described herein is only used for explaining the present invention, not
For limiting the present invention.
Embodiment 1：
In the present embodiment, permanent magnet torque motor is as shown in Figure 1, including stator 1 and rotor 2, in the stator 1 and rotor 2
Between be working gas gap 3.
Stator 1 includes stator core and armature winding 14, and stator core includes stator yoke 11 and stator teeth 12, stator
Teeth portion 12 is made of several stator tooths, and armature winding 14 detours on each stator tooth, is stator slot 13 between each adjacent stators tooth.
As shown in Fig. 2, sealing the notch of each stator between cog by sealing material 41, stator teeth is set integrally to tie in a ring
Structure.As shown in figure 3, stator yoke 11 is in another overall structure.Stator yoke 11 separates each other with both stator teeths 12.
Such as Fig. 2, shown in 3, the opposite position in the end of each stator tooth and stator yoke is formed with what is matched in pairs
Protrusion 51 and depression 52, along the axial direction of the loop configuration, each protrusion to match in pairs can be fastened on one each other with depression
Rise.
In the present embodiment, stator core uses nanometer crystal alloy material or high grade silicon steel material, the iron core of this material
Loss is smaller, it is possible to achieve low-loss, high torque density under high frequency service condition, can also improve electric efficiency.It is also, fixed
Sub- iron core is overrided to form by punching.
In the present embodiment, sealing material 41 uses nanometer crystal alloy material.
In the present embodiment, such as Fig. 1, shown in 4, rotor 2 is made of rotor core 23 with rotor permanent magnet, and rotor core 23 is
Supporter, in for hollow-core construction.Rotor core 23 sets rotor permanent magnet towards the surface of stator 1, i.e. working gas gap side.And
And rotor permanent magnet includes cutting orientation magnetizing permanent magnet 21 and radial magnetizing permanent magnetism body 22, which alternates setting
In the working gas gap side of rotor core 23.As shown in figure 4, radial magnetizing permanent magnetism body 22 refers to that its magnetic direction is directed toward working gas gap
Or away from working gas gap.When the magnetic direction of the radial magnetizing permanent magnetism body 22 is directed toward working gas gap, its both sides is tangentially filled
The magnetic direction of magnetic permanent magnet 21 is directed toward the radial magnetizing permanent magnetism body；When the radial magnetizing permanent magnetism body 22 magnetic direction backwards
During working gas gap, the magnetic direction of its both sides cutting orientation magnetizing permanent magnet 21 deviates from the radial magnetizing permanent magnetism body.
As shown in figure 4, cutting orientation magnetizing permanent magnet 21 and radial magnetizing permanent magnetism body 22 are the permanent magnet for cutting arc processing.Also,
The width of cutting orientation magnetizing permanent magnet 21 and radial magnetizing permanent magnetism body 22 ratio is 0.25-1.
Comparative example 1：
In the present embodiment, the structure and the structure of the permanent magnet torque motor in above-described embodiment 1 of permanent magnet torque motor are basic
It is identical, except that rotor permanent magnet is traditional face paste structure.
After tested, in embodiment 1 with the torque-current Property comparison figure of the permanent magnet torque motor in comparative example 1 such as
Shown in Fig. 5, show compared with the motor with traditional face paste construction rotor permanent magnet in comparative example 1, in embodiment 1
Permanent magnet torque motor with cutting orientation magnetizing permanent magnet 21 and radial magnetizing permanent magnetism body 22 is with higher radial air gap magnetic density.
After tested, in embodiment 1 with the torque-current Property comparison figure of the permanent magnet torque motor in comparative example 1 such as
Shown in Fig. 6, show compared with the motor with traditional face paste construction rotor permanent magnet in comparative example 1, in embodiment 1
Permanent magnet torque motor with cutting orientation magnetizing permanent magnet 21 and radial magnetizing permanent magnetism body 22 is with higher motor torque.
Embodiment 2：
In the present embodiment, the structure and the structure of the permanent magnet torque motor in above-described embodiment 1 of permanent magnet torque motor are basic
Identical, except that such as Fig. 7, shown in 8, the opposite position in the end of each stator tooth and stator yoke is formed with paired phase
Matched convex strip 54 and concave card slot 53, along the axial direction of the loop configuration, each convex strip to match in pairs with it is recessed
Shape card slot can plug together together.
Embodiment described above only expresses the several embodiments of the present invention, its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (9)
1. a kind of stator of permanent magnet torque motor, including stator core and armature winding, stator core includes stator yoke and determines
Sub- teeth portion, stator teeth are made of several stator tooths, and armature winding detours on each stator tooth, are between each adjacent stators tooth
Groove；It is characterized in that：
The stator yoke is separated with stator teeth；
Each notch is sealed by sealing material, the sealing material of each stator tooth and notch is formed loop configuration；
Opposite position in the end of each stator tooth and stator yoke is formed with the convex strip and spill card to match in pairs
Groove, along the axial direction of the loop configuration, together with each convex strip to match in pairs can be plugged together with concave card slot；
Alternatively, the end of each stator tooth and the opposite position of stator yoke be formed with match in pairs it is raised with it is recessed
Fall into, along the axial direction of the loop configuration, each protrusion to match in pairs can be snapped together with depression.
2. the stator of permanent magnet torque motor as claimed in claim 1, it is characterized in that：The stator core is nanometer crystal alloy
Material or high grade silicon steel material.
3. the stator of permanent magnet torque motor as claimed in claim 1, it is characterized in that：The stator core laminated by punching and
Into.
4. a kind of permanent magnet torque motor with high torque density, it is characterized in that：Including stator and rotor, between stator and rotor
For working gas gap, the stator uses the stator of the permanent magnet torque motor described in claim 1,2 or 3.
5. there is the permanent magnet torque motor of high torque density as claimed in claim 4, it is characterized in that：The rotor is by rotor iron
The heart is formed with rotor permanent magnet, and rotor permanent magnet is arranged on the working gas gap side of rotor core, and rotor permanent magnet includes cutting
To charging permanent magnet and radial magnetizing permanent magnetism body, which alternates setting.
6. there is the permanent magnet torque motor of high torque density as claimed in claim 5, it is characterized in that：The cutting orientation magnetizing is forever
Magnet and radial magnetizing permanent magnetism body are the permanent magnet for cutting arc processing.
7. there is the permanent magnet torque motor of high torque density as claimed in claim 5, it is characterized in that：The cutting orientation magnetizing is forever
The width of magnet and radial magnetizing permanent magnetism body ratio is 0.25-1.
8. there is the permanent magnet torque motor of high torque density as claimed in claim 4, it is characterized in that：The rotor core is sky
Core structure.
9. there is the permanent magnet torque motor of high torque density as claimed in claim 4, it is characterized in that：The number of stator slots and turn
Sub- number of poles is combined as：Number of pole-pairs is p, slot number Q, and the number of pole-pairs p of unit motor1=p/GCD (p, Q), unit motor
Slot number Q1=Q/GCD (p, Q)=2p1± 1, and Q=3n, Q1=3n1, wherein p1、n、n1For positive integer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610906992.3A CN107959361B (en) | 2016-10-18 | Stator of permanent magnet torque motor and permanent magnet torque motor with high torque density |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610906992.3A CN107959361B (en) | 2016-10-18 | Stator of permanent magnet torque motor and permanent magnet torque motor with high torque density |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107959361A true CN107959361A (en) | 2018-04-24 |
| CN107959361B CN107959361B (en) | 2024-04-23 |
Family
ID=
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109274241A (en) * | 2018-11-09 | 2019-01-25 | 东南大学 | A kind of not wide halbach array axial stator iron-core less motor |
| CN111463917A (en) * | 2020-05-06 | 2020-07-28 | 哈尔滨理工大学 | Composite permanent magnet synchronous motor stator |
| CN113346640A (en) * | 2020-03-02 | 2021-09-03 | 尼得科电机（青岛）有限公司 | Inner stator iron core, stator, motor and electric product |
| CN113852227A (en) * | 2021-11-01 | 2021-12-28 | 南通大学 | High-magnetism-gathering type hybrid permanent magnet rotor structure |
| CN113972760A (en) * | 2021-10-29 | 2022-01-25 | 上海电机学院 | Permanent magnet synchronous motor vibration damping and noise reduction stator |
| CN114421659A (en) * | 2022-01-26 | 2022-04-29 | 丽水方德智驱应用技术研究院有限公司 | Stator and flat wire motor of adaptation warm area distribution characteristics |
| CN114598116A (en) * | 2022-03-18 | 2022-06-07 | 北京航空航天大学宁波创新研究院 | Stator core assembling tool and using method thereof |
| CN114825708A (en) * | 2022-05-12 | 2022-07-29 | 重庆大学 | Magnetic gear rotor and structure forming tool system thereof |
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| JPH08256465A (en) * | 1996-04-19 | 1996-10-01 | Nippondenso Co Ltd | Stepping motor |
| JPH11275790A (en) * | 1998-03-23 | 1999-10-08 | Mitsuba Corp | Structure of rotor of brushless motor |
| JP2003264947A (en) * | 2002-03-08 | 2003-09-19 | Fujitsu General Ltd | Permanent magnet motor |
| CN101242126A (en) * | 2008-03-13 | 2008-08-13 | 南京航空航天大学 | Normal/radial parallel mixed excitation magnetic synchronization motor |
| CN202384969U (en) * | 2011-10-31 | 2012-08-15 | 上海电机学院 | Hybrid excitation synchronous motor having high power density |
| CN103618392A (en) * | 2013-12-13 | 2014-03-05 | 中国科学院深圳先进技术研究院 | Stator and rotor dual-permanent-magnet excitation harmonic motor |
| CN104201854A (en) * | 2014-09-18 | 2014-12-10 | 同济大学 | Electromagnetic structure of vehicular external-rotor radial-magnetic-field permanent magnet synchronous in-wheel motor |
| CN206164227U (en) * | 2016-10-18 | 2017-05-10 | 中国科学院宁波材料技术与工程研究所 | Stator of permanent magnetic force square motor and permanent magnetic force square motor that has high rotation torque density |
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| JPH08256465A (en) * | 1996-04-19 | 1996-10-01 | Nippondenso Co Ltd | Stepping motor |
| JPH11275790A (en) * | 1998-03-23 | 1999-10-08 | Mitsuba Corp | Structure of rotor of brushless motor |
| JP2003264947A (en) * | 2002-03-08 | 2003-09-19 | Fujitsu General Ltd | Permanent magnet motor |
| CN101242126A (en) * | 2008-03-13 | 2008-08-13 | 南京航空航天大学 | Normal/radial parallel mixed excitation magnetic synchronization motor |
| CN202384969U (en) * | 2011-10-31 | 2012-08-15 | 上海电机学院 | Hybrid excitation synchronous motor having high power density |
| CN103618392A (en) * | 2013-12-13 | 2014-03-05 | 中国科学院深圳先进技术研究院 | Stator and rotor dual-permanent-magnet excitation harmonic motor |
| CN104201854A (en) * | 2014-09-18 | 2014-12-10 | 同济大学 | Electromagnetic structure of vehicular external-rotor radial-magnetic-field permanent magnet synchronous in-wheel motor |
| CN206164227U (en) * | 2016-10-18 | 2017-05-10 | 中国科学院宁波材料技术与工程研究所 | Stator of permanent magnetic force square motor and permanent magnetic force square motor that has high rotation torque density |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109274241A (en) * | 2018-11-09 | 2019-01-25 | 东南大学 | A kind of not wide halbach array axial stator iron-core less motor |
| CN113346640A (en) * | 2020-03-02 | 2021-09-03 | 尼得科电机（青岛）有限公司 | Inner stator iron core, stator, motor and electric product |
| CN111463917A (en) * | 2020-05-06 | 2020-07-28 | 哈尔滨理工大学 | Composite permanent magnet synchronous motor stator |
| CN113972760A (en) * | 2021-10-29 | 2022-01-25 | 上海电机学院 | Permanent magnet synchronous motor vibration damping and noise reduction stator |
| CN113852227A (en) * | 2021-11-01 | 2021-12-28 | 南通大学 | High-magnetism-gathering type hybrid permanent magnet rotor structure |
| CN114421659A (en) * | 2022-01-26 | 2022-04-29 | 丽水方德智驱应用技术研究院有限公司 | Stator and flat wire motor of adaptation warm area distribution characteristics |
| CN114421659B (en) * | 2022-01-26 | 2023-10-27 | 丽水方德智驱应用技术研究院有限公司 | Stator and flat wire motor adapting to temperature zone distribution characteristics |
| CN114598116A (en) * | 2022-03-18 | 2022-06-07 | 北京航空航天大学宁波创新研究院 | Stator core assembling tool and using method thereof |
| CN114598116B (en) * | 2022-03-18 | 2023-09-15 | 北京航空航天大学宁波创新研究院 | Stator core assembly fixture and application method thereof |
| CN114825708A (en) * | 2022-05-12 | 2022-07-29 | 重庆大学 | Magnetic gear rotor and structure forming tool system thereof |
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