CN206481198U - A kind of permasyn morot magnet steel surface-mounted rotor - Google Patents
A kind of permasyn morot magnet steel surface-mounted rotor Download PDFInfo
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- CN206481198U CN206481198U CN201720225231.1U CN201720225231U CN206481198U CN 206481198 U CN206481198 U CN 206481198U CN 201720225231 U CN201720225231 U CN 201720225231U CN 206481198 U CN206481198 U CN 206481198U
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- magnet steel
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Abstract
The utility model discloses a kind of permasyn morot magnet steel surface-mounted rotor, including main shaft, it is located at the rotor core on main shaft, be located in rotor core and with the number of poles of permasyn morot into integral multiple multiple magnet steel, each magnet steel is sticked on the outer circumference surface of rotor core, multiple magnet steel are along the multiple circumferentially spaced of rotor core, each magnet steel includes axis bearing of trend many segment unit magnet steel that order is set successively along rotor core, the adjacent end face of adjacent two segment units magnet steel is in close contact, along the axis bearing of trend of rotor core, adjacent two segment units magnet steel staggers an angle or distance on the circumferencial direction of rotor core to same direction.The rotor forms the rotor structure of oblique pole formula by the surface magnet steel that is sticked, and the purpose of rotor chute is realized by skewed-rotor, so, permanent magnet motor torque fluctuation and higher hamonic wave is reduced, reduces stray loss, so as to improve the efficiency of permanent magnet motor.
Description
Technical field
The utility model is related to permasyn morot technical field, and in particular to a kind of permasyn morot magnet steel table
Mounted rotor.
Background technology
Calculate according to statistics, about 1,700,000,000 kilowatts of China's motor recoverable amount, the kilowatt hour of total power consumption about 3,000,000,000,000 accounts for the whole society total
The motor total electricity consumption of the 64% of power consumption, wherein industrial circle is 2.6 trillion kilowatt hours, accounts for the 75% of commercial power, country
In propulsion energy-saving emission reduction, organizing and implementing " ten big energy conservation projects ", energy-saving of motor system engineering is included in wherein, it is first in implementation
Standard platform construction is first promoted, makes the energy efficiency market and efficiency grade of China's small and middle induction motors to international electromechanics trade
Standards system is drawn close, in GB18613-2012 standards, and 2 grades of efficiency is confirmed to be high efficiency motor, equivalent to IEC60034-30 marks
IE3 grades in standard, 1 grade than GB18613-2006 standard upgrading.
State Administration for Quality Supervision and Inspection and Quarantine, Standardization Administration of China were on June 29th, 2012 immediately
Issue, on November 1st, 2012 implement GB/T28575-2012《YE3 series（1P55）Ultra-High Efficiency threephase asynchronous technology
Condition（Seat No. 80-355）》, efficiency value specified in this document is identical with 2 grades of energy efficiency markets in GB18613-2012.
So, newly-designed motor will reach 2 grades of efficiencies of GB18613-2012 standards and GB/T28575-2012 standards
Specified in energy efficiency market just have certain difficulty, therefore, design YE3 it is serial when, designing technique, manufacturing process and material
It is greatly improved in terms of material cost, in addition it is also necessary to by adjusting core material and flute profile size, winding data come balance electric
Every loss of machine reaches efficient 2 grades with performance, even if so, according to IEC approved IE5 efficiency limit values, therewith, China
1 grade of efficiency of motor will also be lifted again, entire series to reach that 1 grade of efficiency is hardly possible.
And the energy valid value of permanent magnet motor, it can commonly reach 1 grade, even above 1 grade, therefore, the small machine row in China
The target tilt of product development is classified as what small machine in China's 21st century was researched and developed by industry to magneto, and magneto
Bellwether.
The vast motor user of China national policy lead the excitation with civilian-oriented project under, using the product of high efficiency motor
Polarity is increasingly improved, and the market of magneto is increasingly expanded, and the type and kind of the magneto that user needs are also increasingly
Increase.
From design of electrical motor angle, for optimization air-gap field waveform, weaken cogging torque most efficient method, generally using oblique
The way of groove.Stator uses straight trough in such as Y and Y2 series three-phase asynchronous motors, and the damper rod of rotor damping cage is just using oblique
Groove.Due to condition limitation, when permanent magnet motor is designed, sometimes due to a variety of conditions are limited, do not allow the stator using routine oblique
Groove, this necessarily forces rotor to use skewed slot, once but rotor uses skewed slot, and magnet steel groove and magnet steel are necessarily S-shaped, as shown in figure 1,
Even if magnet steel uses surface-mount type, magnet steel wants skewed slot, is also difficult to because of magnet steel surface deflections.
Utility model content
The purpose of this utility model is that there is provided a kind of permasyn morot magnet steel surface-mount type in view of the shortcomings of the prior art
Rotor, by the way that magnet steel is sticked on the outer circumference surface of rotor core so as to form skewed-rotor structure, and passes through skewed-rotor
Rotor chute is reached.
To reach above-mentioned purpose, the technical solution adopted in the utility model is：
A kind of permasyn morot magnet steel surface-mounted rotor, rotor includes main shaft, the rotor being set on the main shaft
It is unshakable in one's determination, be arranged in the rotor core and with the number of poles of permasyn morot into integral multiple multiple magnet steel, it is each described
Magnet steel is sticked on the outer circumference surface of the rotor core, circumferencial direction interval of multiple magnet steel along the rotor core
Distribution, each magnet steel includes axis bearing of trend many segment unit magnetic that order is set successively along the rotor core
Steel, the adjacent end face of adjacent two sections of unit magnet steel of same extremely described magnet steel is in close contact, along the rotor core
Axis bearing of trend, adjacent two sections of unit magnet steel of same extremely described magnet steel are on the circumferencial direction of the rotor core
Stagger an angle or distance to same direction.
Preferably, the adjacent two sections unit magnet steel stagger on the circumferencial direction of the rotor core angle or distance
It is identical, and the angle staggered is：（360/ rotor slot number）/（The quantity -1 of unit magnet steel）；Or, the distance staggered is：（（Turn
Pilot trench number × rotor slot-pitch）/（Rotor slot number+motor number of pole-pairs））/（The quantity -1 of unit magnet steel）.
Preferably, each magnet steel is in tile shape structure, each magnet steel include curved outward flange and
Inward flange.
Further, the outward flange is identical with the radius size of the inward flange, and the center of circle is located at different positions.
Further, the outward flange is different with the radius size of the inward flange, the co-located place in the center of circle.
Preferably, each magnet steel includes circumferencial direction multiple magnetic that order is set successively along the rotor core
Bar, the adjacent end face of adjacent two sections of magnetic stripes is in close contact.
Preferably, along the circumferencial direction of the rotor core, 2 ~ 4mm spacing is provided between the two neighboring magnet steel.
Preferably, fluting, institute are provided with the corresponding position of the magnet steel that is sticked on the outer circumference surface of the rotor core
State the two ends slotted and extended through along the axis direction of the rotor core on the axis direction of the rotor core.
Preferably, the rotor also includes the sheath for being set in the outside of the magnet steel, and the sheath every magnetic by with making
Material is made.
Due to the utilization of above-mentioned technical proposal, the utility model has following advantages compared with prior art：This practicality is new
The permasyn morot magnet steel surface-mounted rotor of type is equal by each magnet steel that will be sticked on the outer circumference surface of rotor core
Many segment unit magnet steel are divided into along the axis bearing of trend of rotor core, and the adjacent two segment units magnet steel of same pole magnet steel is existed
The rotor structure of oblique pole formula is formed after certain distance or the angle of staggering on the circumferencial direction of rotor core, is realized by skewed-rotor
The purpose of rotor chute, so, reduces permanent magnet motor torque fluctuation and higher hamonic wave, reduces stray loss, so as to carry
The high efficiency of permanent magnet motor.
Brief description of the drawings
Accompanying drawing 1 is the structural representation after permanent-magnet motor rotor skewed slot in the prior art；
Accompanying drawing 2 is the structural representation of permasyn morot magnet steel surface-mounted rotor of the present utility model；
Accompanying drawing 3 is one of structural representation of magnet steel of permasyn morot of the present utility model；
Accompanying drawing 4 is the two of the structural representation of the magnet steel of permasyn morot of the present utility model；
The knot that accompanying drawing 5 is sticked on the outer circumference surface of rotor core for the magnet steel of permasyn morot of the present utility model
Structure schematic diagram；
Accompanying drawing 6 is sticked on the outer circumference surface of rotor core after rear deploy for permasyn morot of the present utility model
Structural representation；
Accompanying drawing 7 is the structural representation of rotor-core lamination of the present utility model；
Accompanying drawing 8 is the structural representation of the press-loading device of the present utility model for press-fiting rotor core.
Wherein：1st, main shaft；2nd, rotor core；21st, rotor-core lamination；211st, mounting hole；3rd, magnet steel；31st, unit magnet steel；
32nd, magnetic stripe；33rd, magnetic patch；4th, sheath；5th, magnetic isolation plate；
100th, lower platen；200th, top board；300th, mandrel；400th, upper holder block；500th, the second fastener.
Embodiment
The technical solution of the utility model is further elaborated with specific embodiment below in conjunction with the accompanying drawings.
As shown in Fig. 2 permasyn morot magnet steel surface-mounted rotor of the present utility model includes main shaft 1, is set in master
Rotor core 2 on axle 1, be arranged in rotor core 2 and with the number of poles of permasyn morot into integral multiple multiple magnetic
Steel 3.
Each magnet steel 3 is sticked on the outer circumference surface of rotor core 2, circumferencial direction of multiple magnet steel 3 along rotor core 2
It is spaced apart, each magnet steel 3 includes axis bearing of trend many segment unit magnet steel that order is set successively along rotor core 2
31, the adjacent end face of the adjacent two segment units magnet steel 31 of same pole magnet steel 3 is in close contact, and the axis along rotor core 2 prolongs
Direction is stretched, the adjacent two segment units magnet steel 31 of same pole magnet steel 3 is somewhat wrong to same direction on the circumferencial direction of rotor core 2
An angle or distance are opened, so, oblique pole formula rotor structure is just formed, the purpose of rotor chute has been reached by skewed-rotor.
Preferably, along the axis bearing of trend of rotor core 2, the adjacent two segment units magnet steel 31 of same pole magnet steel 3 is turning
The distance or the numerical value of angle staggered on the circumferencial direction of sub- iron core 2 is all identical.
In the present embodiment, by taking 132M-4 7.5kw magnetoes as an example, each magnet steel 3 includes 5 segment unit magnet steel 31, the electricity
The rotor of machine is 28 grooves, the distance of whole rotor chuteIt is expressed as with angle：
,
The distance of the rotor chute is assigned on 5 segment unit magnet steel 31, adjacent two segment units magnet steel 31 is in rotor core 2
The angle that staggers of circumferencial direction be：
；
Whole rotor chute is expressed as apart from tsk with distance：
,
Wherein：
It is 28 for rotor slot number；
It is 2 for motor number of pole-pairs；
For rotor slot-pitch,, hereinIt is 134mm for rotor diameter, calculates,
So
,
The distance of the rotor chute is assigned on 5 segment unit magnet steel 31, the distance that adjacent two segment units magnet steel 31 staggers
For：
。
As shown in Figure 5 and Figure 6, each magnet steel 3 includes the circumferencial direction multistage that order is set successively along rotor core 2
It is in close contact between magnetic stripe 32, the adjacent face of adjacent two sections of magnetic stripes 32, so, each magnet steel 3 is split into multiple small magnetic
Block 33, along the axis direction and circumferencial direction of rotor core 2, is in close contact between the adjacent face of two neighboring magnetic patch 33,
The small magnetic patch 33 of adjacent two on same magnetic stripe 32 somewhat staggers one on the circumferencial direction of rotor core 2 to same direction
Angle or distance.
As shown in figure 5, along the circumferencial direction of rotor core 2, can be using the small of 2 ~ 4mm between two adjacent magnet steel 3
The structure in gap, the gap is play a part of every magnetic, to prevent interpolar magnet short-cut path, so as to weaken the magnetic flux of every pole magnet steel 3.
Each magnet steel 3 is in tile shape structure, and as shown in Figure 3 and Figure 4, each magnet steel 3 includes curved outward flange
And inward flange, the center of circle of outward flange and inward flange can be arranged at same position, i.e. outward flange and inward flange is arranged concentrically, this
When outward flange it is different with the radius size of inward flange, as shown in Figure 3；The radius size phase of outward flange and inward flange can also be made
Together, and the center of circle is not at same position, therebetween with one apart from L, as shown in figure 4, the radius such as outward flange and inward flange and
The magnet steel 3 that decentraction is set with polar arc due to making voltage waveform, current waveform and sine degree all preferable.
Magnet steel 3 is sticked on the outer circumference surface of rotor core 2 by bonding agent, firm after magnet steel 3 is bonded in order to increase
Degree, provided with fluting at the position of adhesive magnetic steel 3 on the outer circumference surface of rotor core 2, the fluting is used to deposit bonding agent, so that
The bonding area of magnet steel 3 and the outer circumference surface of rotor core 2 is added, two on the axis direction for running through rotor core 2 of slotting
End.
The rotor also includes the shield for being used to protect magnet steel 3 after magnet steel 3 is sticked on the excircle of rotor core 2
Set 4, the cylindrical structure of sheath 4, the outside of rotor core 2 of the hot jacket after the magnet steel 3 that is sticked.Sheath 4 is by with separated magnetic effect
Material be made, in the present embodiment, sheath 4 is made of 1Cr18Ni9 stainless steel materials.
Rotor also includes the magnetic isolation plate 5 at the both ends being arranged on the axis direction of rotor core 2, the axle of rotor core 2
Both ends of the surface on line direction are respectively against the magnetic isolation plate 5 for corresponding to side, and rotor core 2 is fixedly connected with the magnetic isolation plate 5 of both sides.
The manufacturing process of the rotor is as follows：
（1）Multiple rotor-core laminations 21 of manufacture composition rotor core 2：
Rotor core 2 is overlapped together by multiple rotor-core laminations 21 and is made, structure such as Fig. 7 of rotor-core lamination 21
It is shown.In the present embodiment, rotor-core lamination 21 is formed using low-loss silicon steel 50W350 punching, and the rotor core 2 includes altogether
290 rotor-core laminations 21.
（2）Rotor core 2 press-fits：
A. manufacture the press-loading device for press-fiting rotor core 2, as shown in figure 8, press-loading device include lower platen 100, on
Pressing plate 200, mandrel 300 and upper holder block 400.Rotor-core lamination 21 is set in the middle part of mandrel 300, the both ends of mandrel 300
It is connected respectively with top board 200 and lower platen 100, when being extracted after compaction from the axis hole of rotor core 2 to reduce mandrel 300
Frictional force is bigger than normal, and mandrel 300 is designed into three-stage：In the middle part of mandrel and both ends, the diameter at its both ends is less than the straight of middle part
Footpath；
B. the one end of mandrel 300 is fixedly connected on lower platen 100, multiple rotor-core laminations 21 is inserted in successively
Mandrel 300；
C. every rotor-core lamination 21 is a number of when being arranged provided with the mounting hole 211 for installing the first fastener
After rotor-core lamination 21, it can be passed through using test rod detection mounting hole 211, can not such as pass through, adjust rotor-core lamination
21 position enables test rod to pass through, and multiple remaining rotor-core laminations 21 are inserted in into mandrel 300 successively according to this.This
Embodiment is by taking 132M-4 7.5kw magnetoes as an example, and the height of rotor core 2 is 145mm, certain when being arranged on mandrel 300
The rotor-core lamination 21 of quantity makes record stacking height that test rod be respectively adopted when reaching 50mm, 100mm and 145mm to mounting hole
211 are detected；
D. top board 200 is enclosed on mandrel 300, and be pressed on multiple rotor-core laminations 21 overlapped together,
Upper holder block 400 is installed on top board 200, top board 200, multiple rotor-core laminations 21 are made by the second fastener 500, pushed
Plate 100 and mandrel 300 are fixed together；
E. pressure is applied on upper holder block 400, under pressure when the height of rotor core 2 reaches the height of requirement
When, in the present embodiment, when the height of rotor core 2 reaches 145mm, the second fastener 500 is tightened once again, then second
Fastener 500 is in tighten in the state of the first fastener is passed through in mounting hole 211 in step C, and tighten, thus
Multiple rotor-core laminations 21 are fixed together；
F. the second fastener 500 is unclamped, removes and upper holder block 400 and top board 200 is removed after pressure, takes out what is overlapped together
The rotor core 2 of shaping.
（3）Rotor core 2 is set on main shaft 1：
By step（2）The rotor core 2 of middle shaping is overall to be put into baking oven, is progressively warming up to 250 DEG C, and constant temperature holding two is small
When, rotor core 2 is then taken out by its hot jacket on main shaft 1.
（4）The outer circumference surface of rotor core 2 to being set on main shaft 1 be finish-machined to the size of requirement.
（5）Be sticked magnet steel 3 on the outer circumference surface of rotor core 2：
On the outer circumference surface of rotor core 2 during adhesive magnetic steel 3, to make two adjacent unit magnet steel 31 in rotor core
Stagger an angle and distance to same direction on 2 circumferencial direction, oblique pole formula rotor structure is formed with this, so as to reach that rotor is oblique
The purpose of groove.
On the outer circumference surface that magnet steel 3 is bonded in rotor core 2 using bonding agent, in the present embodiment, bonding agent is used
KDS04A2 type anaerobic adhesives.During bonding, bonding agent is positioned in the fluting on the outer circumference surface of rotor core 2, the present embodiment
In, the width of fluting is 5mm, and depth is 4mm.
（6）The outside of rotor core 2 after the magnet steel 3 that is sticked is arranged sheath 4：
Sheath 4 is heated, then the outside of rotor core 2 of the hot jacket after the magnet steel 3 that is sticked, interference is received after sheath 4 is cooled down
Tightly, the magnitude of interference is 8 ~ 10um, so as to magnet steel 3 is fixed between sheath 4 and rotor core 2, during preventing that rotor core 2 from rotating
Magnet steel 3 flies out after bonding agent failure between magnet steel 3 and rotor core 2.
（7）Two ends on the axis direction of rotor core 2 are respectively mounted magnetic isolation plate 5, during installation, make rotor core 2
Then both ends of the surface on axis direction are consolidated the magnetic isolation plate 5 of both sides and rotor core 2 respectively against the magnetic isolation plate 5 of correspondence side
Surely link together.
So, just complete the processing and manufacturing of rotor, then to machining after rotor carry out dynamic balance running, meet
The test requirements document rotor is that can be used.The rotor structure so designed can reduce permanent magnet motor torque fluctuation and higher hamonic wave,
Stray loss is reduced, the efficiency of permanent magnet motor is improved.
Above-described embodiment is only to illustrate technical concepts and features of the present utility model, and its object is to allow be familiar with technique
Personage can understand content of the present utility model and implement according to this, protection domain of the present utility model can not be limited with this.
All equivalent change or modifications made according to the utility model Spirit Essence, should all cover protection domain of the present utility model it
It is interior.
Claims (9)
1. a kind of permasyn morot magnet steel surface-mounted rotor, rotor includes main shaft, the rotor iron being set on the main shaft
The heart, be arranged in the rotor core and with the number of poles of permasyn morot into integral multiple multiple magnet steel, it is characterised in that：
Each magnet steel is sticked on the outer circumference surface of the rotor core, circumference of multiple magnet steel along the rotor core
Direction is spaced apart, and each magnet steel includes the axis bearing of trend multistage that order is set successively along the rotor core
Unit magnet steel, the adjacent end face of adjacent two sections of unit magnet steel of same extremely described magnet steel is in close contact, along described turn
Sub unshakable in one's determination axis bearing of trend, the circumference of adjacent two sections of unit magnet steel of same extremely described magnet steel in the rotor core
Stagger an angle or distance to same direction on direction.
2. permasyn morot magnet steel surface-mounted rotor according to claim 1, it is characterised in that：Described in adjacent two sections
Angle that unit magnet steel staggers on the circumferencial direction of the rotor core or apart from identical, and the angle staggered is：（360/ turn
Pilot trench number）/（The quantity -1 of unit magnet steel）；Or, the distance staggered is：（（Rotor slot number × rotor slot-pitch）/（Rotor slot number+
Motor number of pole-pairs））/（The quantity -1 of unit magnet steel）.
3. permasyn morot magnet steel surface-mounted rotor according to claim 1, it is characterised in that：Each magnet steel
It is in tile shape structure, each magnet steel includes curved outward flange and inward flange.
4. permasyn morot magnet steel surface-mounted rotor according to claim 3, it is characterised in that：The outward flange and
The radius size of the inward flange is identical, and the center of circle is located at different positions.
5. permasyn morot magnet steel surface-mounted rotor according to claim 3, it is characterised in that：The outward flange and
The radius size of the inward flange is different, the co-located place in the center of circle.
6. permasyn morot magnet steel surface-mounted rotor according to claim 1, it is characterised in that：Each magnet steel
Include along the rotor core circumferencial direction successively order set multiple magnetic stripes, adjacent two sections of magnetic stripes it is adjacent
End face is in close contact.
7. the permasyn morot magnet steel surface-mounted rotor according to any one of claim 1 ~ 6, it is characterised in that：Edge
2 ~ 4mm spacing is provided between the circumferencial direction of the rotor core, the two neighboring magnet steel.
8. permasyn morot magnet steel surface-mounted rotor according to claim 1, it is characterised in that：The rotor core
Outer circumference surface on correspondence be sticked at the position of the magnet steel and be provided with fluting, it is described to slot along the axis side of the rotor core
Two ends on to the axis direction for extending through the rotor core.
9. permasyn morot magnet steel surface-mounted rotor according to claim 1, it is characterised in that：The rotor is also wrapped
The sheath for the outside for being set in the magnet steel is included, the sheath is made up of the material with separated magnetic effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720225231.1U CN206481198U (en) | 2017-03-09 | 2017-03-09 | A kind of permasyn morot magnet steel surface-mounted rotor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720225231.1U CN206481198U (en) | 2017-03-09 | 2017-03-09 | A kind of permasyn morot magnet steel surface-mounted rotor |
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| CN201720225231.1U Active CN206481198U (en) | 2017-03-09 | 2017-03-09 | A kind of permasyn morot magnet steel surface-mounted rotor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106816975A (en) * | 2017-03-09 | 2017-06-09 | 江苏久知电机技术有限公司 | A kind of oblique pole structure of permasyn morot magnet steel surface-mounted rotor and manufacturing process |
| CN109167448A (en) * | 2018-09-30 | 2019-01-08 | 北京航空航天大学 | A kind of surface-mount type high-speed permanent magnet motor sheath and permanent magnet elastic conjunction structure |
| CN114006488A (en) * | 2021-11-23 | 2022-02-01 | 苏州保邦电气有限公司 | Rotor structure and ultra-low vibration noise permanent magnet motor |
-
2017
- 2017-03-09 CN CN201720225231.1U patent/CN206481198U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106816975A (en) * | 2017-03-09 | 2017-06-09 | 江苏久知电机技术有限公司 | A kind of oblique pole structure of permasyn morot magnet steel surface-mounted rotor and manufacturing process |
| CN106816975B (en) * | 2017-03-09 | 2024-02-06 | 江苏久知电机股份有限公司 | Permanent magnet synchronous motor magnetic steel surface-mounted rotor oblique pole structure and manufacturing process |
| CN109167448A (en) * | 2018-09-30 | 2019-01-08 | 北京航空航天大学 | A kind of surface-mount type high-speed permanent magnet motor sheath and permanent magnet elastic conjunction structure |
| CN114006488A (en) * | 2021-11-23 | 2022-02-01 | 苏州保邦电气有限公司 | Rotor structure and ultra-low vibration noise permanent magnet motor |
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