CN107070030A - Rotor, manufacture method and its permasyn morot with resultant field - Google Patents
Rotor, manufacture method and its permasyn morot with resultant field Download PDFInfo
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- CN107070030A CN107070030A CN201710231915.7A CN201710231915A CN107070030A CN 107070030 A CN107070030 A CN 107070030A CN 201710231915 A CN201710231915 A CN 201710231915A CN 107070030 A CN107070030 A CN 107070030A
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 238000013016 damping Methods 0.000 claims abstract description 85
- 238000004804 winding Methods 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 74
- 239000010959 steel Substances 0.000 claims description 74
- 238000004080 punching Methods 0.000 claims description 25
- 238000002955 isolation Methods 0.000 claims description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 13
- 239000004411 aluminium Substances 0.000 claims description 13
- 229910052782 aluminium Inorganic materials 0.000 claims description 13
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 4
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract description 9
- 230000033228 biological regulation Effects 0.000 abstract description 8
- 230000005284 excitation Effects 0.000 abstract description 8
- 230000001360 synchronised effect Effects 0.000 abstract description 6
- 230000003111 delayed effect Effects 0.000 abstract description 4
- 230000006698 induction Effects 0.000 abstract description 4
- 230000005389 magnetism Effects 0.000 abstract description 4
- 244000079889 Cymbidium pendulum Species 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 230000015572 biosynthetic process Effects 0.000 description 8
- 238000005265 energy consumption Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 101100282111 Caenorhabditis elegans gap-2 gene Proteins 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000005347 demagnetization Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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Classifications
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- 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/02—Details
- H02K21/021—Means for mechanical adjustment of the excitation flux
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention discloses a kind of rotor with resultant field, manufacture method and its permasyn morot, wherein rotor includes main shaft, rotor core and the tile permanent magnet being arranged on rotor core, magnetic force line passage is left between each pole permanent magnet, form the magnetic field of permanent magnet of rotor, make to set damping cage on permanent magnet motor run-in synchronism, rotor core.After stator winding electrifying, delayed electricity is formed on rotor core and encourages rotating excitation field, with stronger induction torque.So permasyn morot can coordinate normal starting and speed governing with the synchronous motor Special variable frequency speed regulation device of vector controlled, and the asynchronous motor Special variable frequency speed regulation device of energy and pressure regulation, frequency modulation is supporting, normal starting and speed governing.Meanwhile, when permasyn morot low speed is run, it can resist because of the velocity perturbation that pulsating torque, Cymbidium aloifolium and cogging torque are produced, hence it is evident that change the low-speed stability of frequency conversion drive permasyn morot, enhance the ability in invariable power area weak magnetism speed expansion.
Description
Technical field
The present invention relates to motor technology field, more particularly to a kind of rotor structure with resultant field, rotor
Manufacture method and its permasyn morot with the rotor.
Background technology
Motor is the rich and influential family using electric energy, is calculated according to statistics, about 1,700,000,000 kilowatts of China's motor recoverable amount, total power consumption about 3
Trillion kilowatt hours, account for the 64% of whole society's total electricity consumption, the wherein motor total electricity consumption of industrial circle is 2.6 trillion kilowatt hours,
Commercial motor consumption electric energy accounts for the 75% of the consumption of its commercial power, each motor driven systems consumption electric energy in industrial department
Ratio be：Pump class 23%, blower fan 16%, air compressor machine 18%, refrigeration compressor 7%, conveyer belt 2%, other motors are 34%,
I.e. blower fan, pump class, compressor class account for the 63% of wastage in bulk or weight altogether.
Country is included in " energy-saving of motor system engineering " in propulsion energy-saving emission reduction, organizing and implementing " ten big energy conservation projects "
Wherein.Standard platform construction is promoted first, makes the energy efficiency market of China's small and middle induction motors and permasyn morot
Drawn close with efficiency grade to international professional standard system.And correspondingly establish the mandatory Motor Energy Efficiency limit value of China and energy
Imitate classification standard.Mainly have：GB18613-2012《Middle-size and small-size threephase asynchronous energy efficiency market and efficiency grade》、
GB30253-2013《Permasyn morot energy efficiency market and efficiency grade》.In two motor standards, by efficiency
Grade is divided into 3 grades, 2 grades and 1 grade Three Estates, wherein 1 grade of highest (equivalent to IE4 grades in IEC60034-30 standards), 2 grades
Secondly, high efficiency motor (equivalent to IE3 grades in IEC60034-30 standards) is confirmed as, 3 grades minimum (equivalent to IEC30034-30
IE2 grades in standard) and mandatory provision in September, 2017,1 grade of efficiency motor, which be should give, to be eliminated and is forbidden to use.In 4 years
In the practice that the research and development of many high-efficiency electric motors and motor efficiency are lifted, asynchronous motor efficiency will reach that 1 grade (IE4) is almost can not
Can.And permanent magnet motor is that can generally reach 1 grade of (IE4) grade, even more high.And IE have approved IE5 grades recently
Energy valid value, it is meant that, the energy efficiency market and efficiency grade of China's middle and small motor will lift one-level again.Therefore, people will forever
Bellwether's product that magnet motor is researched and developed as China's 21st century middle and small motor.
From the point of view of China's electric system, running efficiency of system is very low.By taking water pump as an example, in industry, agricultural and resident
Sphere of life, water pump even load machine applications quantity is very big.According to statistics, water pump necessary electromotor accounts for the 23% of motor total amount, and year is consumed
Electricity accounts for the 20% of generated energy.In common equipment, water pump proportion is high.However, water pump class product electric energy is sharp at present
Very low with rate, actual operating efficiency is less than 50%, and running efficiency of system is less than 30%, and annual China is this in pump-type load
Waste the kilowatt hour of electric power 10,000,000,000.Need to adjust the flow of water pump in some loads, the past is frequently with valve, baffle plate etc.
Flow is adjusted, running efficiency of system is so done and is decreased obviously.
A kind of effective ways for reducing system energy consumption are exactly to use variable-frequency control technique, and its energy-saving effect is fairly obvious.
Motor drives the variable valve of a delivery port and runs on a constant rotating speed for a long time, and the flow of its water is
Adjusted by valve.Because motor constant-speed operation is in high-head, therefore flow can be reduced by turning down valve, but reduce energy consumption
Numerical value is very small.
As can be seen from Figure 1, A points are the original operating point of water pump, if needing to reduce the flow of water now.In Fig. 1 (a)
Water-carrying capacity throttling control figure in motor rotating speed it is constant, operating point is moved to B points by A points, and power now is：
PB=HB﹒ QB=1.2HA﹒ 0.8HA=0.96PA
I.e. when the flow-reduction of water pump water is to original 80%, power is only reduced to original 96%, is reduced only by 4%.
If adjusting flow by changing the rotating speed of motor, the throttling control figure of the water-carrying capacity as shown in Fig. 1 (b), then operating point
C points are changed into from A points, corresponding power is：
PC=HC﹒ QC=0.7HA﹒ 0.8QA=0.56PA
Compared with control valve mode throttles, power saving rate is 40%.
It can be seen that, pump capacity is adjusted by changing the rotating speed of motor, with very significant power savings.Certainly adopt
After frequency control, variable-frequency governor also to consume in itself load-carrying 5%~8% electric energy, for including water pump, electronic
For machine, the electric system of variable-frequency governor, what this point was also considered as, even if so, water pump uses the energy-conservation of frequency control
Effect is still fairly obvious.
Based on this, in the efficiency lifting and the reducing energy consumption of drive system of pump, blower fan, compressor class product motor
In, the flow and hydraulic pressure that water is adjusted using variable-frequency governor speed governing are widely used.But, originally with it is phase asynchronous
The supporting variable-frequency governor of motor can not be supporting with three-phase permanent-magnetic synchronous motors, so substituting three in permasyn morot
While phase asynchronous motor simultaneously, it is necessary to while the synchronous frequency changer applied to permasyn morot is replaced originally different
The supporting variable-frequency governor of motor is walked, the cost that user carries out reducing energy consumption is nearly doubled.Why asynchronous motor
Supporting variable-frequency governor cannot be used for permasyn morot, is primarily due to asynchronous motor and permasyn morot is adjusted
Caused by the mechanism of speed is different.Variable-frequency governor for asynchronous motor be by changing stator voltage and frequency come speed governing,
And the variable-frequency governor for being used for permasyn morot is the direct-axis component id and quadrature axis component ig for controlling permanent-magnet electric armature,
The regulation of rotating speed is realized by vector controlled.Therefore, can be normal for the variable-frequency governor of threephase asynchronous if to allow
Driving and regulation three-phase permanent-magnetic synchronous motors, just should be on three-phase permanent-magnetic synchronous motors rotor except there is permanent magnet foundation
Outside magnetic field, should also have the damping cage for producing enough induction torques.
The content of the invention
The technical problems to be solved by the invention are：To solve asynchronous motor frequency-changing speed-regulating device and permasyn morot
Can not general speed governing deficiency there is provided a kind of rotor structure with resultant field, the manufacture method of rotor and its with this turn
The permasyn morot of son, to reach asynchronous motor frequency-changing speed-regulating device and the general purpose of permasyn morot.
The present invention solves its technical problem technical scheme to be taken：A kind of rotor with resultant field, including
The rotor core of main shaft, hot jacket on the main shaft and multiple tile permanent magnetism along rotor core circumferencial direction setting
The magnetic pole of body formation, tile permanent magnet is adopted to be fixed on rotor core in the method for paste, and the tile permanent magnet includes
It is multiple that along the axial seamless spliced tile magnet steel member of rotor core, the magnetizing direction magnetic pole of each tile magnet steel member is consistent,
Tile magnet steel member includes multi-disc along the circumferentially seamless spliced magnet steel of rotor core, the opposite polarity of the adjacent magnetic pole,
And formation air magnet isolation tank in gap is left between each pole tile permanent magnet, the rotor core of said structure forms permanent-magnet magnetic
；The damping cage of cast aluminium is provided with the outside of the rotor core, the damping cage includes damper rod and the damping of integrally connected
Circumferentially arranged with a plurality of damping slot axially consistent with the rotor core, the damping slot on ring, the rotor core outer wall
Interior cast aluminium forms the damper rod.
Damping ring area of section still reaches the 70%-85% of same specification asynchronous motor damping ring area of section.Work as stator
Formed after current electrifying, on rotor core and lag behind the rotor electricity of stator rotating excitation field and encourage rotating excitation field, with stronger different
Walk torque.Permanent magnetic field is provided with rotor core and delayed electricity encourages rotating excitation field, i.e., so-called resultant field.
The quantity of tile permanent magnet and the number of poles of permasyn morot are into integral multiple, and each tile permanent magnet glues
It is attached on the outer round surface of rotor core, and each tile permanent magnet is parallel with the shaft centre line of rotor core, each pole is adopted
If being spliced with dry plate magnet steel, against tile magnet steel member is initially formed between every a piece of magnet steel, then by tile magnet steel member
Air magnet isolation tank is left between seamless spliced formation magnetic pole vertically, adjacent pole, air magnet isolation tank was both made in 10-25mm or so
It is magnet steel interpolar every magnetic, and the passage of damper rod is cut as stator field, the magnetic pole made in this way on the one hand can
It is processed so that overall tile magnetic pole is decomposed into multi-disc, then carries out splicing and save raw material, on the other hand, per a piece of
Shoe shape magnet steel size and volume diminish, and in the compressing process of magnet steel production process, it is possible to increase magnet steel density, make magnetic
Performance reserve capability strengthens, effectively reduction demagnetization phenomenon.
Specifically, the damping slot is knife-edge groove.Cast aluminium formation damper rod in knife-edge groove damping slot, and in damping boom end
Form damping ring.
Preferably, tile magnet steel member is waits radius tile magnet steel member, the outer rim of the tile magnet steel member and interior
Edge has identical radius and the different centers of circle.Because tile permanent magnet is spliced by multi-disc identical tile magnet steel member
Form, therefore, tile permanent magnet is also to wait radius tile permanent magnet.
Preferably, tile magnet steel member is concentric tile magnet steel member, the outer rim of the tile magnet steel member and inner edge
With the identical center of circle and different radiuses.Due to tile permanent magnet be by multi-disc identical tile magnet steel member splicing and
Into therefore, tile permanent magnet is also concentric tile permanent magnet.
Further, the position for every block of magnet steel being correspondingly arranged on the outer peripheral face of the rotor core is correspondingly provided with one
Groove, the groove axially extends to the rotor core total length along the rotor core, and the width of groove is generally 5-8mm
Left and right.Because tile permanent magnet is to be pasted onto by resin on rotor core, groove is set to increase tile permanent magnetism
The bonding area of body and rotor core outer circumference surface.
Further, the two ends on the axis direction of the rotor core are separately installed with magnetic isolation plate, and the magnetic isolation plate passes through
Iron core core through screw rod is fastened on the rotor core.Magnetic isolation plate uses aluminium sheet, prevents the magnetic line of force is passed to from influenceing main shaft on main shaft
Work and the life-span.
Further, in addition to sheath, the sheath is set on the excircle of the tile permanent magnet.Rotor core is done
It is cylindrical, set interference after stainless steel sheath, hot jacket to tighten up.
A kind of manufacture method of the rotor with resultant field, comprises the following steps,
Step 1：Multiple rotor punchings of manufacture composition rotor core, punching has a plurality of radial direction on the excircle of rotor punching
Damping rod aperture；Damping rod aperture is blade-shaped deep trouth.
Step 2：Multiple rotor punchings in step 1 are press fit together, rod aperture is stitched together forms for all dampings
Damping slot after damping slot, closed assembly is skewed slot, and carries out cast aluminium in damping slot, is formed and is connected by damper rod and damping ring
Damping cage；Damper rod is cast in damping slot, and the damping ring that the two ends of damper rod are formed by cast aluminium respectively is connected, so that
Form the damping cage of caged.
Step 3：After the rotor core obtained in step 2 is heated, hot jacket is located at rotor core on main shaft
The iron core shelves of main shaft；
Step 4：The rotor core being set on main shaft is subjected to fine turning outer circle process；Damping ring outer-diameter end face retains not car
Cut, and rotor core part carries out outside diameter after turning, smart car and meets formula：Outside diameter=stator core stamping sheet internal diameter -2
The unilateral air gap -2 of × magneto × magnet thickness.
Step 5：Paste to correspond on the position of every block of magnet steel on the outer peripheral face of rotor core and mill out a groove, it is described
Groove axially extends to the rotor core total length along the rotor core；Specifically, at magnet steel location for paste center vertically
Line is slotted.
Step 6：Tile permanent magnet is pasted on fine turning outer circle surface, wherein, the tile permanent magnet of each pole
Manufacturing process：Tile magnet steel member is formed along the cylindrical circumferential surface of rotor core is seamless spliced by polylith magnet steel first, then
Again the tile permanent magnet is formed by multiple tile magnet steel member along rotor core is axially seamless spliced；
Step 7：After tile permanent magnet has been pasted, by sheath hot jacket on the excircle of tile permanent magnet, after cooling
Interference is shunk to tighten up；Sheath is using the stainless steel sheath by 1Cr18Ni9 material drawings.
Step 8：Two ends on the axis direction of rotor core are respectively mounted magnetic isolation plate, and will by iron core core through screw rod
Magnetic isolation plate is fastened on rotor core.
A kind of permasyn morot, including the above-mentioned rotor with resultant field, in addition to cover successively from inside to outside
The Stator and electrical machine shell on the outside of the rotor is located at, the stator is included outside stator winding and stator core, the motor casing
Side face is provided with terminal box, and the two ends of the motor casing axial direction are sealed provided with end cap, and the outside of end cap described in side is provided with wind
Fan guard is covered with fan, the fan.
Specifically, the stator core uses skewed slot, the rotor uses straight trough.
The rotor core of the present invention is three-phase asynchronous motor rotor core stamping, rotor based on equal-wattage and number of poles
Iron core and damping cage, technique of the rotor core by asynchronous motor, which press-fits, to be formed and the cast aluminium in damping rod aperture, and simultaneously
Damping ring is cast, the damping cage being integrally togather is formed.
The beneficial effects of the invention are as follows：A kind of rotor structure with resultant field that the present invention is provided, the manufacture of rotor
Method and its permasyn morot with the rotor, rotating excitation field formation is encouraged using with permanent magnetic field and delayed electricity
The rotor of resultant field, such permasyn morot can coordinate with the synchronous motor Special variable frequency speed regulation device of vector controlled
Normal starting and speed governing, but the asynchronous motor Special variable frequency speed regulation device of energy and pressure regulation, frequency modulation is supporting, normal starting and speed governing.
Meanwhile, when permasyn morot low speed is run, it can resist because of the speed that pulsating torque, Cymbidium aloifolium and cogging torque are produced
Fluctuation, hence it is evident that change the low-speed stability of frequency conversion drive permasyn morot, enhance in invariable power area weak magnetism speed expansion
Ability.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is speed governing operation energy-saving principle figure；
Fig. 2 is the structural representation of rotor of the present invention；
Fig. 3 is the structural representation of the cross section of rotor；
Fig. 4 is the structural representation of rotor core；
Fig. 5 is the structural representation for waiting radius tile magnet steel member；
Fig. 6 is the structural representation of concentric tile magnet steel member；
Fig. 7 is the structural representation of rotor punching (58 grooves are not entirely shown)；
Fig. 8 is the structural representation for damping rod aperture/damping slot；
Fig. 9 is the side structure schematic view of stator core；
Figure 10 is the structural representation of stator and rotor assembling；
Figure 11 is the structural representation of stator punching (72 grooves are not entirely shown).
In figure：1st, main shaft, 2, rotor core, 3, damping ring, 4, permanent magnet, 41, magnet steel member, 42, magnet steel, 5, sheath, 6,
Magnetic isolation plate, 7, stator core, 8, rotor punching, 81, damping rod aperture, 82, damping slot, 9, magnet isolation tank, 10, damper rod, 11, stator
Groove, 12, cramp, 13, cramp groove, 14, trim ring, 15, groove, 16, stator punching, 17, rotor.
Embodiment
Presently in connection with accompanying drawing, the present invention is described in detail.This figure is simplified schematic diagram, is only illustrated in a schematic way
The basic structure of the present invention, therefore it only shows the composition relevant with the present invention.
As illustrated in figs. 2 through 8, a kind of rotor 17 with resultant field, including main shaft 1, hot jacket turning on the main shaft 1
Sub- iron core 2 and the magnetic pole of multiple tile permanent magnets 4 formation set along the circumferencial direction of rotor core 2, tile is forever
Magnet 4 is adopted to be fixed on rotor core 2 in the method for paste, and the tile permanent magnet 4 includes multiple along the axial direction of rotor core 2
Seamless spliced tile magnet steel member 41, the magnetizing direction magnetic pole of each tile magnet steel member 41 is consistent, the tile magnet steel
Member 41 includes polylith along the circumferential seamless spliced magnet steel 42 of rotor core 2, the opposite polarity of the adjacent magnetic pole, and each pole watt
Gap is left between flaky permanent magnet 4 and forms air magnet isolation tank 9, the rotor core 2 of said structure forms permanent magnetic field；Described turn
The sub- outside of iron core 2 is provided with the damping cage of cast aluminium, and the damping cage includes the damper rod 10 and damping ring 3 of integrally connected, institute
State on the outer wall of rotor core 2 circumferentially arranged with a plurality of damping slot 82 consistent with the axial direction of rotor core 2, the damping slot 82
Interior cast aluminium forms the damper rod 10.
The area of section of damping ring 3 still reaches the 70%-85% of the area of section of same specification asynchronous motor damping ring 3.When fixed
Formed after electron current is powered, on rotor core 2 and lag behind the electricity of rotor 17 of stator rotating excitation field and encourage rotating excitation field, with stronger
Induction torque.Permanent magnetic field is provided with rotor core 2 and delayed electricity encourages rotating excitation field, i.e., so-called resultant field.
The quantity of tile permanent magnet 4 and the number of poles of permasyn morot are into integral multiple, and each tile permanent magnet 4 is equal
On the outer round surface for being pasted onto rotor core 2, and each tile permanent magnet 4 is parallel with the shaft centre line of rotor core 2, each
If pole uses dry plate magnet steel 42 to be spliced, per a piece of magnet steel 42 between against tile magnet steel member 41 is initially formed, then by watt
Air magnet isolation tank 9 is left between the seamless spliced formation magnetic pole vertically of sheet magnet steel member 41, adjacent pole, air magnet isolation tank 9 is in 10-
25mm or so, both as the interpolar of magnet steel 42 every magnetic, and as the passage of stator field cutting damper rod 10, makes in this way
On the one hand overall tile magnetic pole can be decomposed into multi-disc and be processed by the magnetic pole of work, then carried out splicing and saved former material
Material, on the other hand, in splicing, adjacent magnet steel 42 is extruded mutually, it is possible to increase the density of magnet steel 42, increases magnetic property reserve capability
By force, demagnetization phenomenon is effectively reduced.
Formed specifically, rotor core 2 is press-fited by multiple rotor punchings 8, the damping rod aperture that rotor punching 8 is provided with
81, damping rod aperture 81 is knife-edge hole, when rotor punching 8 is press fit together, and damping rod aperture 81 is formed damping slot 82, and institute
It is also knife-edge groove to state damping slot 82.Cast aluminium formation damper rod 10 in the damping slot 82 of knife-edge, and form resistance in the end of damper rod 10
Buddhist nun's ring 3.
Tile permanent magnet 4 is made up of multiple tile magnet steel members 41, tile magnet steel member 41 include arc inner edge and
The outer rim of arc, inner edge and outer rim have etc. radius and concentric two kinds of structures.
Preferably, tile magnet steel member 41 is to wait radius tile magnet steel member 41, outside the tile magnet steel member 41
Edge and inner edge have identical radius and the different centers of circle.Because tile permanent magnet 4 is by multi-disc identical tile magnetic
Steel member 41 is spliced, therefore, and tile permanent magnet 4 is also to wait radius tile permanent magnet 4.As shown in figure 5, outer rim and inner edge
Radius is R, and the center of circle of inner edge is O', and the center of circle of outer rim is O, and the distance between two centers of circle are h.
Preferably, tile magnet steel member 41 is concentric tile magnet steel member 41, the outer rim of the tile magnet steel member 41
There is the identical center of circle and different radiuses with inner edge.Because tile permanent magnet 4 is by multi-disc identical tile magnet steel
Member 41 is spliced, and therefore, tile permanent magnet 4 is also concentric tile permanent magnet 4.As shown in fig. 6, outer rim and the inner edge center of circle
It is O, the radius of inner edge is R1, and the radius of outer rim is R2.
The corresponding punching in position of every block of magnet steel 42 is correspondingly arranged on the outer peripheral face of the rotor core 2 groove
15, axially extend to rotor core 2 total length of the groove 15 along the rotor core 2, the width of groove 15 is less than magnetic
The width of steel 42.Because tile permanent magnet 4 is to be pasted onto by resin on rotor core 2, groove 15 is set to increase
The bonding area of tile permanent magnet 4 and the outer circumference surface of rotor core 2.
As shown in Figure 3-4, a tile permanent magnet is made up of 4 tile magnet steel members 41, a piece of tile magnet steel member
41 are made up of 3 magnet steel 42, then whole tile permanent magnet 4 is just spliced by 12 magnet steel 42 according to 3*4 matrix-styles,
And punching has a groove 15, and the groove of the magnet steel 42 of same row on the position of the corresponding rotor core 2 of 12 magnet steel 42
15 can connect along above and below the axial direction of rotor core 2.
Two ends on the axis direction of the rotor core 2 are separately installed with magnetic isolation plate 6, and the magnetic isolation plate 6 passes through iron core
Core through screw rod is fastened on the rotor core 2.
Also include sheath 5, the sheath 5 is set on the excircle of the tile permanent magnet 4.Rotor core 2 does outer
Circle, sets interference after stainless steel sheath 5, hot jacket to tighten up.
A kind of manufacture method of the rotor 17 with resultant field, comprises the following steps,
Step 1：Multiple rotor punchings 8 of manufacture composition rotor core 2, open up a plurality of on the excircle of rotor punching 8
The damping rod aperture 81 of radial direction；Damping rod aperture 81 is blade-shaped deep trouth.As shown in Figure 7 and Figure 8.
Step 2：Multiple rotor punchings 8 in step 1 are press fit together, all damping rod aperture 81 are stitched together to be formed
Damping slot 82, and cast aluminium is carried out in damping slot 82, form the damping cage being connected by damper rod 10 and damping ring 3；Resistance
Buddhist nun's bar 10 is cast in damping slot 82, and the damping ring 3 that the two ends of damper rod 10 are formed by cast aluminium respectively is connected, so as to be formed
The damping cage of caged.
Step 3：After the rotor core 2 obtained in step 2 is heated, hot jacket makes rotor core 2 on main shaft 1
Positioned at the iron core shelves of main shaft 1；
Step 4：The rotor core 2 being set on main shaft 1 is subjected to fine turning outer circle process；The outer-diameter end face of damping ring 3 retains
Not turning, and the part of rotor core 2 carries out outside diameter after turning, smart car and meets formula：The punching of outside diameter=stator core 7
The unilateral air gap -2 of internal diameter -2 × magneto × thickness of magnet steel 42.
Step 5：Paste to correspond on the position of every block of magnet steel 42 on the outer peripheral face of rotor core 2 and mill out a groove
15, the groove 15 axially extends to the total length of rotor core 2 along the rotor core 2；
Step 6：Tile permanent magnet 4 is pasted on fine turning outer circle surface, wherein, the tile permanent magnet of each pole
4 manufacturing process：First tile magnet steel member is formed by polylith magnet steel 42 along the cylindrical circumferential surface of rotor core 2 is seamless spliced
41, then form the tile permanent magnet 4 along rotor core 2 is axially seamless spliced by multiple tile magnet steel members 41 again；
Step 7：After tile permanent magnet 4 has been pasted, by the hot jacket of sheath 5 on the excircle of tile permanent magnet 4, cooling
After-contraction interference is tightened up；Sheath 5 is using the stainless steel sheath 5 by 1Cr18Ni9 material drawings.
Step 8：Two ends on the axis direction of rotor core 2 are respectively mounted magnetic isolation plate 6, and pass through iron core core through screw rod
Magnetic isolation plate 6 is fastened on rotor core 2.
A kind of permasyn morot, including the above-mentioned rotor with resultant field, in addition to cover successively from inside to outside
The Stator and electrical machine shell in the outside of rotor 17 is located at, the stator includes stator winding and stator core 7, the motor casing
Outer peripheral face is provided with terminal box, and the two ends of the motor casing axial direction are sealed provided with end cap, and the outside of end cap described in side is provided with
Fan guard is covered with fan, the fan.
As shown in figs. 9-11, the stator core 7 uses skewed slot, and the rotor core 2 uses straight trough.Stator core 7 by
Multi-disc stator punching 16 is stamped to form, and the inner ring of stator core 7 is uniformly provided with axial stator slot 11, the stator slot of stator core 7
11 be 72 grooves, and excircle being used for provided with 9 grooves of stator core 7 installs the cramp groove 13 of cramp 12, the both ends of the surface of stator core 7
The trim ring 14 of stator core 7 is provided with, the end of cramp 12 is buckled on trim ring 14, the damping slot 82 of rotor core 2 is 58 grooves.Stator slot
11 with rotor slot be damping slot 82 ratio when electromagnetism is calculated by optimizing and revising.
The rotor core 2 of the present embodiment be the punching of three-phase asynchronous motor rotor iron core 2 based on equal-wattage and number of poles,
Rotor core 2 and damping cage, technique of the rotor core 2 by asynchronous motor, which press-fits, to form and is cast in damping rod aperture 81
Aluminium, and damping ring 3 is cast simultaneously, form the damping cage being integrally togather.
As shown in figure 4, the height H0 of rotor is 210mm, error range is 0-2.5mm, and the external diameter Φ 1 of sheath 5 is
282.6mm, the internal diameter Φ 2 of sheath 5 is 278mm；The external diameter Φ 3 of permanent magnet 4 equal with the internal diameter Φ 2 of sheath 5 is 278mm, forever
The internal diameter Φ 4 of magnet 4 is 264mm, and the height H of damping ring 3 is 20mm, and the section of damping ring 3 is trapezoidal, and on the outside of damping ring 3
Inner edge and outer rim be provided with R5 circular arc chamfering, and the axially inclined angle [alpha] of the inner ring of damping ring 3 and outer ring be 4 °, damping
Width D on the outside of ring is 38mm, and the external diameter Φ 8 of damping ring 3 is 281mm, and the external diameter Φ 8 of damping ring 3 is more than the external diameter Φ 3 of permanent magnet 4；
The depth L of damping slot 82 is 24.8mm.
As Figure 7-8, the external diameter Φ 5 of rotor punching 8 is 285mm, and the internal diameter Φ 6 of rotor punching 8 is 85mm, internal diameter Φ
6 match with the size of main shaft 1, and the external diameter Φ 7 after the smart car of rotor core 2 that rotor punching 8 is stamped and formed out is 283.8mm, is now hindered
The depth L0 more greatly 34.1mm of Buddhist nun's groove 82, continue to cut away L1 depth on this basis, and L1 is 9.3mm, and forming depth L is
24.8mm damping slot 82,82 points of damping slot is two sections, and epimere groove insied width d1 is 3.7mm, the top slot inner width of hypomere
Degree d2 is 4.7mm, and the base channel insied width d3 of hypomere is 2.6mm, and the depth L2 of hypomere is 17.6mm.
Using the above-mentioned desirable embodiment according to the present invention as enlightenment, pass through above-mentioned description, related staff
Various changes and amendments can be carried out in without departing from the scope of the present invention completely.The technical scope of this invention is not
It is confined to the content on specification, it is necessary to its technical scope is determined according to right.
Claims (10)
1. a kind of rotor (17) with resultant field, it is characterised in that：Including main shaft (1), hot jacket on the main shaft (1)
Rotor core (2) and the magnetic pole formed along multiple tile permanent magnets (4) that the rotor core (2) circumferencial direction is set,
The tile permanent magnet (4) includes multiple tile magnet steel members (41) seamless spliced along rotor core (2) axial direction, described watt
Sheet magnet steel member (41) includes multi-disc along the circumferential seamless spliced magnet steel (42) of rotor core (2), the polarity of the adjacent magnetic pole
On the contrary, and left between each pole tile permanent magnet (4) gap formed air magnet isolation tank (9)；Set on the outside of the rotor core (2)
There is the damping cage of cast aluminium, the damping cage includes the damper rod (10) and damping ring (3) of integrally connected, the rotor core
(2) circumferentially arranged with a plurality of damping slot (82) consistent with the rotor core (2) axial direction on outer wall, the damping slot (82) is interior
Cast aluminium forms the damper rod (10).
2. there is the rotor (17) of resultant field as claimed in claim 1, it is characterised in that：The damping slot (82) is knife-edge
Groove.
3. there is the rotor (17) of resultant field as claimed in claim 1, it is characterised in that：The tile magnet steel is first (41)
Outer rim and inner edge there is identical radius and the different centers of circle.
4. there is the rotor (17) of resultant field as claimed in claim 1, it is characterised in that：The tile magnet steel is first (41)
Outer rim and inner edge there is the identical center of circle and different radiuses.
5. there is the rotor (17) of resultant field as claimed in claim 1, it is characterised in that：Outside the rotor core (2)
The position of every piece of magnet steel (42) is set to be correspondingly provided with a groove (15) on side face, the groove (15) is along the rotor
Iron core (2) axially extends to the rotor core (2) total length.
6. there is the rotor (17) of resultant field as claimed in claim 1, it is characterised in that：The axle of the rotor core (2)
Two ends on line direction are separately installed with magnetic isolation plate (6), and the magnetic isolation plate (6) is fastened on the rotor by iron core core through screw rod
On iron core (2).
7. there is the rotor (17) of resultant field as claimed in claim 1, it is characterised in that：Also include sheath (5), the shield
Set (5) is set on the excircle of the tile permanent magnet (4).
8. a kind of manufacture method of the rotor (17) with resultant field, it is characterised in that：Comprise the following steps,
Step 1：Multiple rotor punchings (8) of manufacture composition rotor core (2), open up many on the excircle of rotor punching (8)
The damping rod aperture (81) of bar radial direction；
Step 2：Multiple rotor punchings (8) in step 1 are press fit together, all damping rod aperture (81) are stitched together to be formed
Damping slot (82), and cast aluminium is carried out in damping slot (82), form the resistance being connected by damper rod (10) and damping ring (3)
Buddhist nun's cage；
Step 3：After the rotor core obtained in step 2 (2) is heated, hot jacket makes rotor core on main shaft (1)
(2) positioned at the iron core shelves of main shaft (1)；
Step 4：The rotor core (2) that will be set on main shaft (1) carries out fine turning outer circle process；
Step 5：Paste to correspond on the position of every block of magnet steel (42) on the outer peripheral face of rotor core (2) and mill out a groove
(15), the groove (15) axially extends to the rotor core (2) total length along the rotor core (2)；
Step 6：Tile permanent magnet (4) is pasted on fine turning outer circle surface, wherein, the tile permanent magnet of each pole
(4) manufacturing process：First tile magnetic is formed by polylith magnet steel (42) along rotor core (2) cylindrical circumferential surface is seamless spliced
Steel member (41), then forms the tile by multiple tile magnet steel first (41) along rotor core (2) is axially seamless spliced again
Permanent magnet (4)；
Step 7：It is cold by sheath (5) hot jacket on the excircle of tile permanent magnet (4) after tile permanent magnet (4) has been pasted
But after-contraction interference is tightened up；
Step 8：Two ends on the axis direction of rotor core (2) are respectively mounted magnetic isolation plate (6), and pass through iron core core through screw rod
Magnetic isolation plate (6) is fastened on rotor core (2).
9. a kind of permasyn morot, it is characterised in that：Including there is resultant field as described in claim any one of 1-7
Rotor (17), in addition to be sequentially sleeved at the Stator and electrical machine shell on the outside of the rotor (17), the stator bag from inside to outside
Stator winding and stator core (7) are included, the outer peripheral face of the motor casing is provided with terminal box, and the two ends of the motor casing axial direction are equal
Envelope is provided with end cap, and the outside of end cap described in side is provided with fan, is covered with fan guard on the fan.
10. permasyn morot as claimed in claim 9, it is characterised in that：The stator core (7) uses skewed slot, institute
State rotor (17) and use straight trough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710231915.7A CN107070030A (en) | 2017-04-11 | 2017-04-11 | Rotor, manufacture method and its permasyn morot with resultant field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710231915.7A CN107070030A (en) | 2017-04-11 | 2017-04-11 | Rotor, manufacture method and its permasyn morot with resultant field |
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|---|---|
| CN107070030A true CN107070030A (en) | 2017-08-18 |
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ID=59601794
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710231915.7A Pending CN107070030A (en) | 2017-04-11 | 2017-04-11 | Rotor, manufacture method and its permasyn morot with resultant field |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113098205A (en) * | 2021-03-16 | 2021-07-09 | 珠海格力电器股份有限公司 | Rotary transformer and new energy automobile motor |
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| CN102754317A (en) * | 2009-12-22 | 2012-10-24 | Ksb股份公司 | Rotor having a short circuit cage |
| CN203377698U (en) * | 2012-11-05 | 2014-01-01 | 蔡桓 | Novel rotor structure of servo motor |
| CN204835739U (en) * | 2015-08-13 | 2015-12-02 | 温岭市东菱电机有限公司 | Lift -cabin door electric motor rotor |
| CN205017120U (en) * | 2015-09-25 | 2016-02-03 | 珠海凌达压缩机有限公司 | Stator core and motor with same |
| CN205070636U (en) * | 2015-11-12 | 2016-03-02 | 东方电气（乐山）新能源设备有限公司 | Novel magnet steel fixed structure with motor |
| CN205195455U (en) * | 2015-12-05 | 2016-04-27 | 天津中控海容科技有限公司 | Rotor structure device of permanent magnet synchronous servo motor |
| CN206628912U (en) * | 2017-04-11 | 2017-11-10 | 江苏祝尔慷电机节能技术有限公司 | Rotor and its permasyn morot with resultant field |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102754317A (en) * | 2009-12-22 | 2012-10-24 | Ksb股份公司 | Rotor having a short circuit cage |
| CN203377698U (en) * | 2012-11-05 | 2014-01-01 | 蔡桓 | Novel rotor structure of servo motor |
| CN204835739U (en) * | 2015-08-13 | 2015-12-02 | 温岭市东菱电机有限公司 | Lift -cabin door electric motor rotor |
| CN205017120U (en) * | 2015-09-25 | 2016-02-03 | 珠海凌达压缩机有限公司 | Stator core and motor with same |
| CN205070636U (en) * | 2015-11-12 | 2016-03-02 | 东方电气（乐山）新能源设备有限公司 | Novel magnet steel fixed structure with motor |
| CN205195455U (en) * | 2015-12-05 | 2016-04-27 | 天津中控海容科技有限公司 | Rotor structure device of permanent magnet synchronous servo motor |
| CN206628912U (en) * | 2017-04-11 | 2017-11-10 | 江苏祝尔慷电机节能技术有限公司 | Rotor and its permasyn morot with resultant field |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113098205A (en) * | 2021-03-16 | 2021-07-09 | 珠海格力电器股份有限公司 | Rotary transformer and new energy automobile motor |
| CN113098205B (en) * | 2021-03-16 | 2022-04-26 | 珠海格力电器股份有限公司 | Rotary transformer and new energy automobile motor |
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