CN207652146U - The high-performance copper rotor asynchronous motor of tooling and electro spindle the double skewed slots stator of stator core and stator core - Google Patents
The high-performance copper rotor asynchronous motor of tooling and electro spindle the double skewed slots stator of stator core and stator core Download PDFInfo
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- CN207652146U CN207652146U CN201721213572.3U CN201721213572U CN207652146U CN 207652146 U CN207652146 U CN 207652146U CN 201721213572 U CN201721213572 U CN 201721213572U CN 207652146 U CN207652146 U CN 207652146U
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- skewed slots
- copper rotor
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Abstract
The utility model discloses the high-performance copper rotor asynchronous motors of tooling and electro spindle the double skewed slots stator of a kind of stator core and stator core, including stator, stator cooling water set, winding leading-out wire and copper rotor；Stator further includes stator core and stator winding；Stator winding is wire-wrapped on stator core, and stator core outer end face is equipped with double skewed slots, and double skewed slots are spliced with two skewed slots that shape size is identical, direction is opposite；Copper rotor is straight groove structure；The slot number of copper rotor is equal with the slot number of stator.The utility model can weaken the additional torque generated when the design of the slots such as asynchronous machine, substantially reduce generated high-frequency current loss in asynchronous machine operation, improve motor performance.
Description
Technical field
The utility model is related to the tooling and electricity of technical field of motors more particularly to a kind of stator core and stator core are main
The high-performance copper rotor asynchronous motor of axis double skewed slots stator.
Background technology
Asynchronous machine is reliable for operation due to simple in structure, easy to control, the mainstream driving motor for being currently, conventional asynchronous
When the slots such as motor design due to synchronous additional torque there are problems that so that motor is difficult to start up, asynchronous machine is set using skewed slot
Slot ripples or certain specific higher hamonic waves can be eliminated after meter, can be improved the runnability of motor, be reduced the vibration of motor
And noise, so copper rotor asynchronous machine is mostly using skewed stator slot as the alternative solution of rotor chute in practice.No matter but
Be rotor chute or skewed stator slot, will produce transverse current, and then generate axial force, the axial force with stator rotation
Magnetic field, which moves in a circle, generates axial vibration, this constantly will generate impact to bearing and bearing block, result in axis in the course of time
The damage held.Transverse current can also cause the abnormal wear of copper bar, and the temperature anomaly for having ultimately caused rotor rises, in turn
It is transferred heat at bearing in such a way that heat transfer obtains, has further speeded up the failure of bearing, shorten the online fortune of electro spindle
The row time.
Utility model content
For overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of stator core and stator cores
Tooling and electro spindle double skewed slots stator high-performance copper rotor asynchronous motor, can weaken the slots such as asynchronous machine design when produce
Raw additional torque substantially reduces generated high-frequency current loss in asynchronous machine operation.
The purpose of this utility model adopts the following technical scheme that realization：
A kind of stator core, the stator core outer end face are equipped with double skewed slots, and the double skewed slots are by two shape size phases
The skewed slot cooperation same, direction is opposite is spliced, and the skewed slot is in a skew angle, the double skewed slots relative to the stator core
Extend to both ends in the middle part of from the stator core, the double skewed slots are symmetrical relative to the stator core, the stator iron
In-core side be equipped with around the stator core distribution line embedding groove, the line embedding groove relative to the stator core skew angle with
The double skewed slots are identical relative to the skew angle of the stator core.
Further, the line embedding groove includes open end and concave end, and the width of the open end is less than the concave end
Width.
Further, including stator, stator cooling water set, winding leading-out wire and copper rotor；The stator further includes stator
Iron core and stator winding；The stator winding is wire-wrapped on the stator core；The stator core outer end face is equipped with diclinic
Slot, the double skewed slots are spliced with two skewed slots that shape size is identical, direction is opposite, and the skewed slot is relative to described
Stator core is in a skew angle, and the double skewed slots extend in the middle part of the stator core to both ends, and the double skewed slots are relative to institute
State the line embedding groove that stator core is symmetrical, is distributed equipped with the circular stator core on the inside of the stator core, the embedding
Slot is identical relative to the skew angle of the stator core as the double skewed slots relative to the skew angle of the stator core；The copper
Rotor is straight groove structure.
Further, the slot number of the copper rotor is equal with the slot number of the stator.
Further, the adjacent skewed slot is mutually parallel.
Further, fluid sealant is equipped in the gap of the stator winding both sides, the copper rotor is soldering copper rotor.
A kind of tooling of stator core, to prepare stator core, including at least two pieces and threaded mandril, it is described at least
Two pieces fit in the threaded mandril, and the tile surface includes boss, the boss identical, direction by two shape sizes
Opposite obliquity prominence platform cooperation is spliced, and the boss is in a skew angle relative to the threaded mandril, and the boss is from institute
It states and extends to both ends in the middle part of piece, the boss is symmetrical relative to the piece, and the stator core is rushed by multi-disc stator
Piece stacks, and stator punching outer ring edge is provided with mark slot, skew of the boss relative to the threaded mandril
Angle is θ, and the length that the boss is projected in the end face of the threaded mandril is S, and the stator punching is according to mark slot institute open position
It sets, carrying out stacked group in the boss surface from both sides according to skew angle θ connects.
Further, the tooling of the stator core further includes that two nuts and two pressure rings, the threaded mandril are equipped with
Screw thread, the nut are connected by the screw thread and the threaded mandril.
Further, the tooling of the stator core further includes two pressure rings, the pressure ring be located at the nut with it is described
The joining place that threaded mandril is connected, the stator punching are equipped with several line embedding grooves, and the line embedding groove upper end is further opened with
Clear opening is mounted with rivet on the clear opening.
Further, the quantity of the piece is 4, and four pieces are along the circumferential direction spliced into a circle just
Ring, the skew angleThe length that the boss is projected in the end face of the threaded mandril is
Compared with prior art, the beneficial effects of the utility model are：
A kind of high-performance copper rotor asynchronous motor of the utility model electro spindle double skewed slots stator, it is double by using stator
The structure design of skewed slot so that the number of stator slots of asynchronous machine can be set as equal with rotor slot number, to weaken asynchronous machine
The additional torque generated when equal slots design greatly reduces generated high-frequency current loss in operation, improves making for motor
Use performance.
Description of the drawings
Fig. 1 is that the cross section structure of the high-performance copper rotor asynchronous motor of the electro spindle double skewed slots stator of the utility model shows
It is intended to.
Fig. 2 is the structural schematic diagram of the tooling of the utility model.
Fig. 3 is the stereogram of the utility model stator；
Fig. 4 is the enlarged drawing at A in stator shown in Fig. 3；
Fig. 5 is the stator laminating structure schematic diagram of the utility model；
Fig. 6 is the stator core construction schematic diagram of the utility model.
In figure：10, stator；11, stator core；12, stator winding；20, stator cooling water set；30, winding leading-out wire；
40, copper rotor；50, double skewed slots；60, epoxy pouring sealant；70, tooling；71, nut；72, pressure ring；73, piece；731, boss；
74, threaded mandril；80, stator punching；81, mark slot；82, line embedding groove；821, open end；822, concave end；83, clear opening；
90, rivet.
Specific implementation mode
In the following, in conjunction with attached drawing and specific implementation mode, the utility model is described further：
Referring to Fig. 1, a kind of high-performance copper rotor asynchronous motor of electro spindle double skewed slots stator includes stator 10, determines
Sub- cooling jacket 20, winding leading-out wire 30 and copper rotor 40.
Stator 10 further includes stator core 11 and stator winding 12；Stator winding 12 is wire-wrapped on stator core 11, fixed
11 outer end face of sub- iron core is equipped with double skewed slots 50, and double skewed slots 50 splice with two skewed slots that shape size is identical, direction is opposite
It forms；Copper rotor 40 is straight groove structure；The slot number of copper rotor 40 is equal with the slot number of stator.
Stator 10 includes stator core 11 and stator winding 12, and stator winding 12 is wire-wrapped on stator core 11, stator iron
Core 11 is coordinated by stator winding 12 and winding leading-out wire 30 with copper rotor 40, and copper rotor 40 is mainly in the form of straight trough
Main, 11 outer end face of stator core is equipped with double skewed slots 50, and double skewed slots 50 are matched by two skewed slots that shape size is identical, direction is opposite
Conjunction is spliced.Skewed slot is in a skew angle relative to the stator core 11, and the double skewed slots 50 are from the stator core 11
Portion extends to both ends, and the double skewed slots 50 are symmetrical relative to the stator core 11, and 11 inside of the stator core is equipped with
The line embedding groove 82 being distributed around the stator core 11, skew angle and institute of the line embedding groove 82 relative to the stator core 11
The skew angle that double skewed slots 50 are stated relative to the stator core 11 is identical.
Stator 10 uses the structure design of double skewed slots 50 so that stator can generate two size phases in the axial direction at work
Deng two opposite power of, direction, the counteracting of two power makes axial resultant force be zero, thus greatly reduces and is produced in asynchronous machine operation
Raw high-frequency current loss.
Slotted number is preferably equal with the slot number of stator 10 on copper rotor 40,50 structure of double skewed slots stator 10 with it is straight
When the copper rotor 40 of slot structure carries out equal slots cooperation, the synthesis of generation synchronizes additional torque and is：
Wherein：ua--- rotor harmonic field number of poles；vb--- stator harmonic field number of poles；
L --- stator core height；δ --- air gap radical length；
R --- average airgap length；u0--- space permeability；
ks1--- skewed stator slot coefficient；--- rotor harmonic field；
--- stator harmonic field；--- rotor harmonic field initial phase angle；
--- stator harmonic field initial phase angle.
Found out by above formula, selects appropriate uaNumerical value can reduce the synchronization additional torque of generation, weaken slot ripples or certain
Specific higher hamonic wave, to promote excellent properties of the asynchronous machine in equal slots design.
It is equipped with epoxy pouring sealant 60 in 12 both sides gap of stator winding, forms a closed environment, reaches waterproof, close
The effect of envelope, avoids stator from being influenced at work by external environment, and protection stator 10 can normally be run.
The manufacturing process of copper rotor 40 generally has two kinds of soldering and casting, but only soldering processes are more mature at present, then
Copper rotor 40 uses common soldering copper rotor 40.
A kind of tooling 70 as shown in figures 2-6, to prepare stator core 11, including two nuts, 71, two pressure rings 72, four
A piece 73 and a threaded mandril 74；Stator core 11 is stacked by multi-disc stator punching 80,80 outer ring side of stator punching
Mark slot 81 is provided at edge；73 surface of the piece includes boss 731, the identical, direction by two shape sizes of the boss 731
Opposite obliquity prominence platform cooperation is spliced, and the boss 731 is in a skew angle, the boss relative to the threaded mandril 74
731 extend from 73 middle part of the piece to both ends, and the boss 731 is symmetrical relative to the piece 73；Piece 73 is along axis
To direction, there are skews, and skew angle θ, the length that boss 731 is projected in the end face of the threaded mandril is S；The stator punching
Piece 80 carries out stacked group on 73 surface of the piece from both sides according to 81 open positions of mark slot, according to skew angle θ and connects.
Nut 71 is tightened onto the small end of threaded mandril 74 using spanner, pressure ring 72 is located at nut 71 and screw thread
Between plug 74, pressure can be preferably transmitted；Big end of the installation of piece 73 fixed to threaded mandril 74, piece knob in an axial direction
Rake angle θ and skew distance S is stacked into line skew, stator core 11 by multi-disc stator punching 80,80 outer ring of stator punching
Edge is provided with mark slot 81, due to the positioning action of piece 73, by stator punching 80 according to 81 open positions of mark slot according to
Skew angle θ carries out stacked group on inclined platform surface from both sides and connects, until stator punching 80 is stacked to specified altitude piecewise, then carries out
Forming processes, mark slot 81 mutually splice from both sides, and meeting formation shape dress size on the outer end face of stator core 11 is identical, direction
Two opposite slots, that is, form the structure of double skewed slots 50.
The small end outer surface of threaded mandril 74 is equipped with screw thread, and nut 71 is connected by screw thread and threaded mandril 74.Pressure
Ring 72 is located at the joining place that nut 71 is connected with threaded mandril 74；The big end phase of the madial wall of piece 73 and threaded mandril 74
Fitting.Four 73 structures of piece are identical, and four pieces 73 are along the circumferential direction spliced into an annulus just.
Inclined platform skew angleBoss is projected in the length of the end face of the threaded mandril
Wherein：Di--- diameter of stator bore；Z1--- number of stator slots；P --- number of pole-pairs.
Stator punching 80 is equipped with several line embedding grooves 82, and multiple clear openings 83, stator are further opened in 82 upper end of line embedding groove
During stacking, clear opening 83 is also stacked with perforation for punching 80, rivet 90 is disposed on clear opening 83, to be rushed to stator
Piece 80 is fixed, it is prevented to be scattered during stacking.Line embedding groove 82 includes open end 821 and concave end 822, institute
The width for stating open end 821 is less than the width of the concave end 822, keeps circuit insertion smooth.
The above embodiment is only preferred embodiments of the present invention, cannot limit the model protected of the present invention with this
It encloses, the variation and replacement of any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to this practicality
Novel range claimed.
Claims (10)
1. a kind of stator core, it is characterised in that：The stator core outer end face is equipped with double skewed slots, and the double skewed slots are by two shapes
The skewed slot cooperation that shape size is identical, direction is opposite is spliced, and the skewed slot is in a skew angle, institute relative to the stator core
It states double skewed slots in the middle part of the stator core to extend to both ends, the double skewed slots are symmetrical relative to the stator core, institute
It states and is equipped with the line embedding groove around stator core distribution on the inside of stator core, the line embedding groove is relative to the stator core
Skew angle is identical relative to the skew angle of the stator core as the double skewed slots.
2. stator core as described in claim 1, it is characterised in that：The line embedding groove includes open end and concave end, described
The width of open end is less than the width of the concave end.
3. a kind of high-performance copper rotor asynchronous motor of electro spindle double skewed slots stator, it is characterised in that：It is cold including stator, stator
But water jacket, winding leading-out wire and copper rotor；The stator further includes stator core and stator winding；The stator winding solderless wrapped connection
In on the stator core；The stator core outer end face is equipped with double skewed slots, and the double skewed slots are identical by two shape sizes, square
It is spliced to opposite skewed slot cooperation, the skewed slot is in a skew angle relative to the stator core, and the double skewed slots are from institute
It states and extends to both ends in the middle part of stator core, the double skewed slots are symmetrical relative to the stator core, in the stator core
Side be equipped with around the stator core distribution line embedding groove, the line embedding groove relative to the stator core skew angle with it is described
Double skewed slots are identical relative to the skew angle of the stator core；The copper rotor is straight groove structure.
4. the high-performance copper rotor asynchronous motor of electro spindle as claimed in claim 3 double skewed slots stator, it is characterised in that：Institute
The slot number for stating copper rotor is equal with the slot number of the stator.
5. the high-performance copper rotor asynchronous motor of electro spindle as claimed in claim 4 double skewed slots stator, it is characterised in that：Phase
The adjacent skewed slot is mutually parallel.
6. the high-performance copper rotor asynchronous motor of electro spindle as claimed in claim 5 double skewed slots stator, it is characterised in that：Institute
It states and is equipped with fluid sealant in the gap of stator winding both sides, the copper rotor is soldering copper rotor.
7. a kind of tooling of stator core, to prepare stator core, it is characterised in that：Including at least two pieces and thread core
Stick, at least two pieces fit in the threaded mandril, and the tile surface includes boss, and the boss is big by two shapes
Small obliquity prominence platform cooperation identical, that direction is opposite is spliced, and the boss is in a skew angle, institute relative to the threaded mandril
Boss is stated to both ends to extend in the middle part of the piece, the boss is symmetrical relative to the piece, the stator core by
Multi-disc stator punching stacks, and stator punching outer ring edge is provided with mark slot, and the boss is relative to the screw thread
The skew angle of plug is θ, and the length that the boss is projected in the end face of the threaded mandril is S, and the stator punching is according to note
Number open positions Cao Suo carry out stacked group in the boss surface from both sides according to skew angle θ and connect.
8. the tooling of stator core as claimed in claim 7, it is characterised in that：The tooling of the stator core further includes two
Nut and two pressure rings, the threaded mandril are equipped with screw thread, and the nut is connected by the screw thread and threaded mandril cooperation
It connects.
9. the tooling of stator core as claimed in claim 8, it is characterised in that：The tooling of the stator core further includes two
Pressure ring, the pressure ring are located at the joining place that the nut is connected with the threaded mandril, if the stator punching is equipped with
Dry line embedding groove, the line embedding groove upper end are further opened with clear opening, rivet are mounted on the clear opening.
10. the tooling of stator core as claimed in claim 9, it is characterised in that：The quantity of the piece is 4, four institutes
It states piece and is along the circumferential direction spliced into an annulus, the skew angle justThe boss projection
Length in the end face of the threaded mandril is
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721213572.3U CN207652146U (en) | 2017-09-20 | 2017-09-20 | The high-performance copper rotor asynchronous motor of tooling and electro spindle the double skewed slots stator of stator core and stator core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721213572.3U CN207652146U (en) | 2017-09-20 | 2017-09-20 | The high-performance copper rotor asynchronous motor of tooling and electro spindle the double skewed slots stator of stator core and stator core |
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| Publication Number | Publication Date |
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| CN207652146U true CN207652146U (en) | 2018-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721213572.3U Active CN207652146U (en) | 2017-09-20 | 2017-09-20 | The high-performance copper rotor asynchronous motor of tooling and electro spindle the double skewed slots stator of stator core and stator core |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107612164A (en) * | 2017-09-20 | 2018-01-19 | 广州市昊志机电股份有限公司 | The high-performance copper rotor asynchronous motor of frock and electro spindle the double skewed slots stator of stator core and stator core |
-
2017
- 2017-09-20 CN CN201721213572.3U patent/CN207652146U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107612164A (en) * | 2017-09-20 | 2018-01-19 | 广州市昊志机电股份有限公司 | The high-performance copper rotor asynchronous motor of frock and electro spindle the double skewed slots stator of stator core and stator core |
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