CN104113150B - A kind of multiple tooth stator core hybrid excitation switched flux motor of combined type - Google Patents
A kind of multiple tooth stator core hybrid excitation switched flux motor of combined type Download PDFInfo
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- CN104113150B CN104113150B CN201410344216.XA CN201410344216A CN104113150B CN 104113150 B CN104113150 B CN 104113150B CN 201410344216 A CN201410344216 A CN 201410344216A CN 104113150 B CN104113150 B CN 104113150B
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Abstract
The present invention relates to a kind of multiple tooth stator core hybrid excitation switched flux motor of combined type, it is characterised in that including：Stator core teeth portion module, stator core yoke portion module, rotor core, armature winding, magnet steel, Exciting Windings for Transverse Differential Protection etc..The stator core teeth portion module is set to how tooth-like structure, and the magnet steel, Exciting Windings for Transverse Differential Protection and armature winding are arranged on described state in stator core teeth portion module.Circumferentially combined discharging forms switch magnetic flow motor stator successively for the stator core teeth portion module and stator core yoke portion module, and switch magnetic flow rotor is only provided with rotor core.More tooth-like structure can reduce motor output torque pulsation, by the direction and the amplitude that control Exciting Windings for Transverse Differential Protection input current, energy regulation motor overload and weak magnetic speed-up ability, and coolant circulation system is provided with to the unified cooling radiating of motor progress, the stability and robustness of motor are improved, makes it that there is significant advantage in the application in electromechanical equipment servo direct driving field.
Description
Technical field
The invention belongs to electromechanical equipment servo direct driving machine field, more particularly to a kind of multiple tooth stator core mixing of combined type
Field switch flux electric machine.
Background technology
Modern electromechanical equipment connects driving energy using alternating current servo motor direct and effectively improves equipment operating efficiency and running precision,
Existing AC servo motor common design is rotor permanent magnet electric machine structure, and its rotor being connected with electromechanical equipment is equipped with permanent-magnet magnetic
Steel, the heat produced in damage, and magnet steel by vortex is easily caused in the environment of equipment permanent load is run and is vibrated and is difficult to
Radiating, easily makes magnet steel produce irreversible demagnetization.Switch magnetic flow motor be a kind of magnet steel be arranged on motor stator it is a kind of forever
Magneto, rotor, which is only existed, has very strong robustness, magnet steel and armature on motor stator in magnetic conductive iron, structure
Heat produced by winding can be radiated by designing cooling system, improve the overload capacity of motor.But meanwhile, it is existing to open
Close flux electric machine and there is winding inserting difficulty, output torque fluctuation is big, the problems such as excitation field is difficult to regulation, machine is applied to it
Electric equipment servo direct driving causes difficulty.
In view of above technical problem, the new switch magnetic flow electricity of drawbacks described above can be overcome by being necessary that offer is a kind of in fact
Machine, for the direct drive of electromechanical equipment servo, improves electromechanical equipment operation stability and robustness.
The content of the invention
For above-mentioned situation, to overcome the defect of prior art, it is an object of the invention to propose that a kind of combined type is multiple tooth
Stator core hybrid excitation switched flux motor, makes the fluctuation of switch magnetic flow motor output torque subtract significantly by designing multiple tooth iron core
It is few；Combined-stator core construction is designed, is easy to the coiling of armature winding to install；Exciting Windings for Transverse Differential Protection is set, motor is effectively improved
Overload capacity and weak magnetic speed-up ability.
To achieve the above object, the present invention uses following technical proposals：
A kind of multiple tooth stator core hybrid excitation switched flux motor of combined type, including switch magnetic flow stator, rotor core,
And motor shaft, wherein, the motor shaft is placed on the central shaft of rotor core, and the rotor core is located at the switch magnetic flow
On the central shaft of stator；The switch magnetic flow stator include stator core teeth portion module, stator core yoke portion module, armature around
Group, magnet steel and Exciting Windings for Transverse Differential Protection；The stator core teeth portion module is many double wedge formula structures, is formed by silicon steel plate stacking, the stator
Groove between receiving magnet steel is offered on the central axis of core tooth part module, the both sides of this groove are symmetrically arranged with teeth groove and convex
Tooth；The magnet steel be arranged on it is described between in groove, the Exciting Windings for Transverse Differential Protection is nested on the teeth groove, the armature winding for concentrate around
Group structure, ring set states stator core teeth portion module root described；The stator core yoke portion module is arc structure, by silicon steel
Piece is overrided to form, and two ends of the stator core yoke portion module offer the recess of L-shaped, the stator core teeth portion respectively
The root of module is correspondingly arranged on convex portion, during assembling, and the convex portion of the stator core teeth portion module is just stuck in the stator iron
Fixed in the recess of heart yoke portion module so as to realize to position；The magnet steel circumferentially magnetizes, circumferentially-adjacent magnet steel magnetizing direction
On the contrary, the armature winding direction of winding is consistent, circumferentially set gradually as A, B, C three-phase windings, the Exciting Windings for Transverse Differential Protection coiling
Direction is consistent；Circumferentially combined discharging is installed described successively for the stator core teeth portion module and stator core yoke portion module
On the inside of magnetic aluminum sleeves, and by the aluminium set end cap axial restraint；The rotor core is band double wedge tube-in-tube structure, is switch magnetic flow
Rotor, is sleeved on the motor shaft.
The multiple tooth stator core hybrid excitation switched flux motor of combined type is supported by motor base, the electric machine stand
Inwall is provided with winding turnover line three-way hole, and the electric machine stand excircle is disposed with axial coolant duct；The electric machine stand
End cap axially is provided at both ends with, end cap side outer is circumferentially provided with coolant flow chamber, the coolant flow chamber edge
It is circumferential to be connected with two neighboring coolant duct.
The axial two ends of the motor shaft are respectively arranged with bearing, the bearing respectively with the end cap and the electric machine stand
Connection.
The multiple tooth stator core hybrid excitation switched flux motor of combined type of the present invention at least has advantages below：The present invention is logical
The how tooth-like stator core of design is crossed, weakens motor output torque pulsation, by designing combined stator structure, makes motor assembling side
Just it is simple；By setting Exciting Windings for Transverse Differential Protection, change motor-field, improve the ability of motor overload and weak magnetic speed-up.In addition, of the invention
Inheriting tradition switch magnetic flow magnetic steel of motor is arranged on the structure on stator, and circulates system by designing coolant so that
Magnet steel, armature winding and Exciting Windings for Transverse Differential Protection are easy to radiating, improve the stability and robustness of motor.Therefore, compared to existing exchange
Servomotor, motor of the present invention is more advantageous as electromechanical equipment servo direct driving power source, better adaptability.
Brief description of the drawings
Fig. 1 is a kind of topological structure signal of the multiple tooth stator core hybrid excitation switched flux motor of combined type of the invention
Figure；
Fig. 2 is the structural representation of the stator core teeth portion module in Fig. 1；
The structural representation for the stator core yoke portion module that Fig. 3 is；
Fig. 4 is the three dimensional structure diagram of a stator core teeth portion module in Fig. 1；
Fig. 5 is that the stationary part three-dimensional structure of the multiple tooth stator core hybrid excitation switched flux motor of combined type of the present invention is shown
It is intended to；
Fig. 6 is that the rotor portion three-dimensional structure of the multiple tooth stator core hybrid excitation switched flux motor of combined type of the present invention is shown
It is intended to；
Fig. 7 is the electric machine stand structural representation of the multiple tooth stator core hybrid excitation switched flux motor of combined type of the present invention
Figure；
Fig. 8 is the motor end cap structure signal of the multiple tooth stator core hybrid excitation switched flux motor of combined type of the present invention
Figure；
Fig. 9 is that the axially expanded structure of entirety of the multiple tooth stator core hybrid excitation switched flux motor of combined type of the present invention is shown
It is intended to；
Figure 10 is the topological structure schematic diagram of traditional switch flux electric machine；
Figure 11 is motor of the present invention and one pole span internal torque output waveform figure of traditional switch flux electric machine；
Figure 12 is the excitation linkage flux waveformses figure of motor of the present invention in varied situations.
Embodiment
Below in conjunction with the accompanying drawings to a kind of composition of the multiple tooth stator core hybrid excitation switched flux motor of combined type of the invention
Structure and its electromagnetic performance make specific introduce：
As shown in fig.1, the multiple tooth stator core hybrid excitation switched flux motor of a kind of combined type of the invention, mainly by fixed
Sub- core tooth part module 1, stator core yoke portion module 2, rotor core 3, armature winding 4, magnet steel 5, Exciting Windings for Transverse Differential Protection 6, motor machine
Seat 7, is installed every magnetic aluminum sleeves 9, aluminium set end cap 10, the grade of motor shaft 12 composition.
With reference to shown in Fig. 1 and Fig. 2, the stator core teeth portion module 1 is how tooth-like structure, between its central coaxial is offered
Groove 21, the both sides of this groove are symmetrically arranged with teeth groove 31, and the teeth groove 31 is that the space between adjacent a pile double wedge 41 is formed,
The stator core teeth portion module 1 is overrided to form piecewise by monolithic silicon steel sheet after punching or wire cutting shaping.
With reference to shown in Fig. 1, Fig. 2 and Fig. 4, the magnet steel 5 be arranged on it is described between in groove 21, the Exciting Windings for Transverse Differential Protection 6 is nested in
On the teeth groove 31, the armature winding 4 is concentratred winding structure, and ring set is in the root of stator core teeth portion module 1.
With reference to shown in Fig. 1 and Fig. 3, the stator core yoke portion module 2 is set to arc structure, by monolithic silicon steel sheet through punching
It is overrided to form piecewise after sanction or wire cutting shaping.The end positions of the stator core yoke portion module 2 offer the recess of L-shaped,
So that the end positions formation flange of stator core yoke portion module 2, the root correspondence position of stator core teeth portion module 1 is set
There is convex portion, when the root of stator core teeth portion module 1 and stator core yoke portion module 2 are fitted together, the stator core tooth
The convex portion of the root of portion's module 1 is just stuck in the recess of stator core yoke portion module 2.
With reference to shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the magnetic is installed successively in described stator core teeth portion module 1
Constitute a standalone module after steel 5, Exciting Windings for Transverse Differential Protection 6, armature winding 4, the module and stator core yoke portion module 2 are circumferentially successively
Combination is emitted on described install every the inner side of magnetic aluminum sleeves 9, and by the axial restraint of aluminium set end cap 10.
6 groups of the stator core teeth portion module 1, stator core yoke portion module 2, armature winding 4, magnet steel 5 and Exciting Windings for Transverse Differential Protection
Into switch magnetic flow motor stator 11, the magnet steel 5 circumferentially magnetizes, and the circumferentially-adjacent magnetizing direction of magnet steel 5 is on the contrary, the armature
The direction of winding of winding 4 is identical, circumferentially sets gradually as A, and B, C three-phase windings, the direction of winding of Exciting Windings for Transverse Differential Protection 6 is identical, root
According to different direction and the amplitudes for requiring to change input current of motor overload or weak magnetic speed-up.The rotor core 3 is band double wedge
Tube-in-tube structure, is switch magnetic flow rotor, is sleeved on the motor shaft 12.
With reference to shown in Fig. 1 and Fig. 6, the rotor core 3 is band double wedge tube-in-tube structure, is switch magnetic flow rotor, set
On the motor shaft 12.
With reference to shown in Fig. 7 and Fig. 8, the excircle of electric machine stand 7 is disposed with axial coolant duct 71, the motor machine
7 inwalls of seat are provided with winding turnover line three-way hole 72.The electric machine stand 7 is axially provided at both ends with end cap 8, the side of end cap 8
Outer is circumferentially provided with coolant flow chamber 81, the coolant flow chamber 81 circumferentially with the two neighboring phase of coolant duct 71
Connection, so that one coolant of overall composition circulates system.
With reference to shown in Fig. 5, Fig. 6 and Fig. 9, the switch magnetic flow stator 11 is placed on motor machine by installing every magnetic aluminum sleeves 9
In seat 7, the rotor core 3 is arranged in the switch magnetic flow stator 11 by the motor shaft 12, the axle of motor shaft 12
Bearing 13 is respectively arranged with to two ends, former and later two described bearings 13 are connected with the end cap 8 and the electric machine stand 7 respectively.
Referring again to shown in Fig. 1, as the preferred embodiments of the present invention, the installation is circumferentially put every the inner side of magnetic aluminum sleeves 9
It is equipped with 6 stator core teeth portion modules 1, each stator core teeth portion module 1 is correspondingly arranged on four double wedges 41, a magnet steel 5,
One centralized armature winding 4, and an Exciting Windings for Transverse Differential Protection 6, the optimal double wedge number being correspondingly arranged in rotor core is 19.Can root
Needed according to application, the multiple for setting the number of stator core teeth portion module 1 to be 6, it is 4 or 6 to set the number of double wedge 41, and is selected
The double wedge number of optimal corresponding rotor core 3.
As shown in fig.10, be the topological structure of traditional switch flux electric machine, its mainly by with motor pair of the present invention in Fig. 1
The stator core teeth portion module 1 answered, armature winding 4, magnet steel 5 and rotor core 3 are constituted, its rotor tooth pole group generally used
It is 12 stator core 10 rotor cores of correspondence to close structure.Compared with the present invention, topological structure difference is motor of the present invention
Setting stator core module is how tooth-like structure.Using Finite Element Simulation Analysis, under identical appearance size, electricity relatively more of the present invention
The output torque waveform of machine and traditional switch flux electric machine under a pole span, as shown in figure 11, it is seen then that compared to traditional switch magnetic
How tooth-like three-way motor, the pulsation of present invention stator core switch magnetic flow motor output torque be smaller, is used as the direct of electromechanical equipment
Driving source is even more ideal.Meanwhile, as shown in fig.4, the present invention can make armature winding 6 by knockdown stator core structure
It is attached to by directly set after the overall coiling of winding former in stator core tooth portion module 1, assembles simple and convenient, overcome how tooth-like iron
The problem of heart stator winding is difficult.
Refering to shown in Figure 12, using Finite Element Simulation Analysis, the tune of 6 pairs of motor-fields of the present invention of Exciting Windings for Transverse Differential Protection is studied
Save performance.Motor main field of the present invention constitutes composite excitation magnetic field by the magnet steel 5 and the collective effect of Exciting Windings for Transverse Differential Protection 6, belongs to one
Plant mixed excitation electric machine.The armature winding 4 produces linkage sensing magnetic flux under composite excitation magnetic field.When the Exciting Windings for Transverse Differential Protection 6
When not being passed through electric current, electromagnetism magnetic field has the magnet steel 5 to produce completely, and the magnetic linkage of the linkage of armature winding 4 is the specified sky in Figure 12
Magnetic linkage is carried, is gained knowledge from motor, in the case where other electromagnetic parameters are constant, linkage amplitude is bigger, motor output torque
Bigger, load capacity is stronger.Therefore, certain orientation and the DC current of amplitude are passed through to the Exciting Windings for Transverse Differential Protection 6, can make armature around
The magnetic linkage amplitude of group 4 rises, and is improved the load overload capacity of motor, and overload as described in Figure 12 increases magnetic magnetic linkage.It is another
Aspect, when being passed through the DC current with increasing magnetic magnetic linkage opposite direction to Exciting Windings for Transverse Differential Protection 6, makes the linkage magnetic linkage width of armature winding 4
Value reduction, in the case where armature winding input rated current is constant, reduces motor output torque, improves motor output and turns
Speed, plays a part of weak magnetic speed-up, can improve the speed adjustable range of motor.As shown in figure 12, the Exciting Windings for Transverse Differential Protection 6 is to magnetic linkage amplitude
There is significant regulating effect, so that the overload level and speed adjustable range of motor of the present invention expand significantly, this is for electromechanical equipment
Servo direct drive for, with significant superiority.
One embodiment of the present invention is the foregoing is only, is not all of or unique embodiment, this area is common
Technical staff, by any equivalent conversion read description of the invention and taken technical solution of the present invention, is the present invention
Claim covered.
Claims (2)
1. a kind of multiple tooth stator core hybrid excitation switched flux motor of combined type, directly drives for electromechanical equipment servo, its
It is characterised by：Including switch magnetic flow stator (11), rotor core (3), and motor shaft (12), wherein, the motor shaft is placed in
On the central shaft of rotor core, the rotor core (3) is located on the central shaft of the switch magnetic flow stator (11)；The switch
Flux stator (11) is fabricated structure, including stator core teeth portion module (1), stator core yoke portion module (2), armature winding
(4), magnet steel (5), and for changing the Exciting Windings for Transverse Differential Protection (6) of motor-field raising motor overload and weak magnetic speed-up；The stator
Core tooth part module (1) is that many double wedge formula structures are pulsed with weakening motor output torque, is formed by silicon steel plate stacking, the stator iron
Groove (21) between receiving magnet steel (5) is offered on the central axis of heart teeth portion module (1), the both sides of this groove (21) are symmetrical arranged
There are teeth groove (31) and double wedge (41)；The magnet steel (5) be arranged on it is described between in groove (21), the Exciting Windings for Transverse Differential Protection (6) is nested in institute
State on teeth groove (31), the armature winding (4) is concentratred winding structure, and ring set is in stator core teeth portion module (1) root；
The stator core yoke portion module (2) is arc structure, is formed by silicon steel plate stacking, the stator core yoke portion module
(2) two ends offer the recess of L-shaped respectively, and the root of the stator core teeth portion module (1) is correspondingly arranged on convex portion,
During assembling, the convex portion of the stator core teeth portion module (1) be just stuck in the recess of the stator core yoke portion module (2) from
And realize positioning and fix；
The magnet steel (5) is circumferentially magnetized, and circumferentially-adjacent magnet steel (5) magnetizing direction is on the contrary, the armature winding (4) coiling side
To consistent, circumferentially set gradually as A, B, C three-phase windings, Exciting Windings for Transverse Differential Protection (6) direction of winding is consistent；
The stator core teeth portion module (1) and stator core yoke portion module (2) circumferentially successively combined discharging in the peace
Fill on the inside of magnetic aluminum sleeves (9), and by aluminium set end cap (10) axial restraint；
The rotor core (3) is band double wedge tube-in-tube structure, is switch magnetic flow rotor, is sleeved on the motor shaft (12)
On；
The multiple tooth stator core hybrid excitation switched flux motor of combined type is supported by motor base (7), the electric machine stand
(7) inwall is provided with winding turnover line three-way hole (72), and electric machine stand (7) excircle is disposed with axial coolant duct
(71)；The electric machine stand (7) is axially provided at both ends with end cap (8), and end cap side outer is circumferentially provided with coolant stream
Dynamic chamber (81), the coolant flow chamber (81) is circumferentially connected with two neighboring coolant duct (71).
2. a kind of multiple tooth stator core hybrid excitation switched flux motor of combined type according to claim 1, its feature exists
In：The axial two ends of the motor shaft (12) are respectively arranged with bearing (13), the bearing (13) respectively with the end cap (8) and institute
State electric machine stand (7) connection.
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| CN201410344216.XA CN104113150B (en) | 2014-07-18 | 2014-07-18 | A kind of multiple tooth stator core hybrid excitation switched flux motor of combined type |
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| CN104113150B true CN104113150B (en) | 2017-08-01 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI577111B (en) * | 2016-03-15 | 2017-04-01 | Bigbest Solutions Inc | Axial Flux Motor with Combined Stator and Its Manufacturing Method |
| CN106385153B (en) * | 2016-09-28 | 2019-03-05 | 华中科技大学 | A kind of mixed excitation electric machine |
| CN106655546B (en) * | 2016-10-31 | 2019-03-15 | 吴强 | A kind of brushless DC generator and electricity-generating method |
| CN106712426B (en) * | 2017-03-20 | 2019-01-18 | 山东理工大学 | Each mutually independent five phases permanent-magnetic wind driven generator |
| CN108768016B (en) * | 2018-05-11 | 2020-03-17 | 南京航空航天大学 | Winding dislocation hub motor stator and winding dislocation hub motor device |
| CN109450137A (en) * | 2018-12-25 | 2019-03-08 | 北斗航天汽车（北京）有限公司 | Rotor and magneto with automatic weak-magnetic structure |
| TWI716322B (en) * | 2020-06-01 | 2021-01-11 | 國立成功大學 | Electric mechanical structure and stator core component thereof |
| CN112104111A (en) * | 2020-09-14 | 2020-12-18 | 北京世纪康华电气科技有限公司 | Exciter stator punching sheet, stator core, stator, hybrid excitation device and generator |
| CN112134375B (en) * | 2020-09-14 | 2021-09-21 | 广州市昊志机电股份有限公司 | Stator module and motor |
| CN114157097B (en) * | 2021-11-18 | 2023-09-26 | 东南大学 | Stator structure of magnetic suspension magnetic flux switching motor |
| CN114296231A (en) * | 2021-12-28 | 2022-04-08 | 谱诉光电科技（苏州）有限公司 | Dimming device and dimming method |
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| KR100517922B1 (en) * | 2003-02-27 | 2005-09-30 | 엘지전자 주식회사 | Stator assembly for electric motor and manufacturing method thereof |
| FR2898439B1 (en) * | 2006-03-08 | 2008-05-30 | Centre Nat Rech Scient | ELECTRIC MACHINE WITH FLOW SWITCHING AND DOUBLE EXCITATION |
| US8161643B2 (en) * | 2007-09-20 | 2012-04-24 | Arvinmeritor Technology, Llc | Method for forming a cooling jacket for an electric motor |
| CN103051138B (en) * | 2012-12-20 | 2015-04-15 | 东南大学 | Multi-tooth magnetic flux switching permanent magnetic memory motor |
| CN103078462B (en) * | 2012-12-28 | 2016-06-29 | 广东威灵电机制造有限公司 | A kind of motor |
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