CN101795024B - Horizontal magnetic field motor with non-crystalline alloy iron core - Google Patents
Horizontal magnetic field motor with non-crystalline alloy iron core Download PDFInfo
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- CN101795024B CN101795024B CN2010101214527A CN201010121452A CN101795024B CN 101795024 B CN101795024 B CN 101795024B CN 2010101214527 A CN2010101214527 A CN 2010101214527A CN 201010121452 A CN201010121452 A CN 201010121452A CN 101795024 B CN101795024 B CN 101795024B
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Abstract
A horizontal magnetic field motor with amorphous state alloy iron cores comprises a plurality of unit motors (1001) axially arranged along the motor shafts (5001). Each of the unit motors (1001) comprises one or two stator iron cores (1) and an armature winding (2). In each unit motor (1001), a total of N*Q C-type iron core units (101) are divided into N groups, wherein N is equal to the number of stator iron cores (1); in each group the Q C-type iron core units (101) are uniformly configured in a circumference, and each C-type iron core unit (101) occupies a space angle of 360/Q degrees. Meanwhile each armature winding (2) in each unit motor (1001) is subject to one stator iron core (1), and crosses through from openings of the Q C-type iron core units (101) which form the stator iron cores (1). The non-alloy thin strip is wound into any post iron core by helically winding, and then the post iron core is longitudinally cut to gain two C-type iron core units (101).
Description
Technical field
The present invention relates to a kind of parts,, relate to the transverse magnetic field structural electromotor of a kind of high efficiency, low iron loss more specifically such as the motor of stator or rotor with amorphous alloy material.
Background technology
Amorphous alloy is a kind of novel soft magnetic material of being born in the seventies in 20th century.Roughly has the molecular formula of using A
70-85B
5-20C
0-20Expressed composition.Subscript is represented the shared percentage of different elements, and wherein A represents at least a in iron, nickel and the cobalt; B representes in boron, carbon and the phosphorus at least a; C representes in silicon, aluminium and the germanium at least a.This material is compared with traditional silicon steel material has many-sided advantage, and of paramount importance is to have low-down core loss.Particularly when the magnetic field alternative frequency very high, during such as 0.5kHz～20kHz, this low-loss characteristic is more obvious.Therefore, this material is fit to the motor that manufacturing has high efficiency, high-speed cruising and compact volume requirement very much.The motor indication is a generalized concept in this article, the motor of making a general reference various forms of generators, motor and having the regenerative braking ability.Beyond above-mentioned excellent properties, this material hardness is high, is about 3 times～5 times of silicon steel sheets; Directly use the extremely consumption punch die of speed of conventional Sheet Metal Forming Technology processing amorphous alloy material, make processing cost rise.Provided in very thin tape form amorphous alloy material thickness the most commonly used has only 0.03mm, is about 1/10 of general silicon steel sheet; If copy silicon steel plate stacking technology a slice a slice to laminate amorphous alloy ribbon, not only the time grows up to this height, and the stacking factor that obtains is also very low.Simultaneously this material working temperature is low, has the processing technology that high temperature follows characteristic with line cutting and welding etc. and all can cause material " recrystallization ", even this recrystallization is local, to material behavior, also can cause tremendous influence like loss etc.In addition, amorphous alloy material performance affected by force is apparent in view, any connect improperly, fix, assemble and reprocess all can produce extra stress, the structural member decreased performance that causes non-crystaline amorphous metal to be processed.Just because of above-mentioned several respects reason,, can not directly apply to conventional radial magnetic field structure motor easily though make amorphous alloy material have excellent electromagnetic performance.
In order to address the above problem, multi-form motor or electric machine assembly are suggested, to adapt to the special mechanical performance of amorphous alloy material.At patent of invention CN101286676A, US5731649 and CN200480009398.X have set forth the scheme that amorphous alloy material carries out the motor manufacturing of using from different perspectives.The method that a kind of manufacturing is used for the amorphous alloy stator core of high-speed electric expreess locomotive is disclosed among the CN101286676A.Comprise several operations such as amorphous alloy ribbon cutting, axially lamination moulding, integrally annealed, bonding curing, teeth groove cutting.The gained stator core is annealed, apply the characteristic that technical process such as insulating blanket has guaranteed the low iron loss of material.Simultaneously, because amorphous alloy material is very suitable for conventional radial magnetic field structure motor being overrided to form along axial direction unshakable in one's determination.But, can not avoid long processing time, cost height and the low problem of stacking factor because the mode of using axial direction to stack amorphous thin ribbon is one by one made iron core.
Patent of invention US5731649 has proposed a kind of mode that amorphous alloy ribbon is made stator core that rolls.Stator is combined by a series of cylinders in its invention.Cylinder is divided into two kinds, first kind of tooth as stator, and another kind of yoke as stator.All cylinders as tooth all are connected with the cylinder of regarding yoke, to form complete flux path.Two kinds of cylinders all use amorphous alloy ribbon form concentric spirals formula to reel and form.For the eddy current that stops that AC magnetic field produces, the iron core of this form can not be applied to the motor of radial flux structure, and can only be applied to axial-flux electric machine.Owing to use the mode of spiral winding to make iron core, with axially one by one the mode of lamination mutually specific production rate promote greatly, stacking factor also improves to a certain extent.And, the stator core that is proposed in this patent of invention without any need for the following process operation to cut out motor teeth groove structure commonly used, potential problems such as recrystallization of having avoided possibly causing and additional stress by reprocessing.But this structural electromotor stator core axial length equals the width of amorphous alloy ribbon.Because the material preparation ability is limit, the amorphous alloy thin bandwidth is general maximum between 50mm～100mm.Those skilled in the art should be appreciated that in axial-flux electric machine, the stator core axial length has determined the motor yoke height, and in order to prevent the saturation condition that gets into unshakable in one's determination, increase required exciting curent, and motor tooth portion width will highly be complementary with yoke portion.Therefore the amorphous alloy ribbon of finite width limited this structural electromotor axially with the size of radial direction, make motor can not realize maximization.Meanwhile, owing to exist as the cylinder of tooth with as the connection between the cylinder of yoke, there is additional air gap in the junction, has wasted magnetomotive force.And the connection between the different cylinders has increased association stress again, has reduced material behavior to a certain extent.
Patent of invention CN200480009398.X has proposed a kind of unitary stator iron core that is applicable to axial-flux electric machine.This iron core adopts the spiral winding amorphous alloy ribbon to constitute equally, and productivity ratio is higher.US5731649 is different with patent of invention, and this patent makes process meanses such as water cutting in the stator core that obtains, cut out the teeth groove structure.Avoided because the problem that the stator splicing brings.But this structure stator shaft orientation length still equals the width of amorphous alloy ribbon, and still is used for the axial flux structure motor, therefore has the problem identical with patent of invention US5731649, can not realize that promptly motor maximizes.
Summary of the invention
For overcome stator core long processing time in the prior art, stacking factor is low, additional process is many and motor maximization ability receives problems such as amorphous alloy ribbon size restrictions, the present invention proposes a kind of novel transverse magnetic field formula amorphous alloy motor.Motor proposed by the invention has the citation form of horizontal magnetic field motor.This motor is arranged in a combination by the identical unit motor of a plurality of structures vertically, and each unit motor comprises one or two stator cores, and a rotor core.Each unit motor also comprises one or two annular armature windings, and the winding number equals the stator core number.Each stator core is formed by a series of C sections heart unit combination.The amorphous alloy ribbon manufacturing is used in said stator core.Each C sections heart unit constitutes complete flux path, do not need extra iron core as yoke so that magnetic loop to be provided.Avoid parts to connect required additional process, farthest reduced the material property decline that additional stress and association excess temperature cause.
Each C sections heart can be made with the manufacture of any one open-type amorphous alloy inductor iron core.So-called open-type inductance refers to comprise in the magnetic circuit inductance form of air gap.Wherein a kind of embodiment is following: the first step uses the amorphous alloy ribbon screw winding to obtain the circular cylinder iron core.Second the step, with gained circular cylinder iron core from vertically blocking, obtain two C sections hearts.Said two C sections in the heart, each iron core all forms two end faces and a half-edge hole in the truncated position.These two end faces are in same plane.Said half-edge hole refers to that axle therefrom blocks the geometry that the back forms along the hole in a hole.Described blocking is not necessarily to divide equally from geometric center, and two C sections hearts that therefore obtained by a circular cylinder can be inequality, and the half-edge hole size also can be inequality.Aforementioned circular cylinder does not refer in particular on the mathematical meaning strict annular, only needs the end face and the bottom surface in the identical and middle band arbitrary shape hole of two shapes, and two anchor rings perpendicular to end face and bottom surface are as medial surface and lateral surface.
In each unit motor, C sections heart unit is divided into the N group, and N is 1 or 2, equals the stator core number in each unit motor.In every group, Q the C sections heart is uniformly distributed with at circumferencial direction, and each above-mentioned C sections heart takes up space angle 360/Q °.Arranging of all Q the C sections hearts makes 2Q C sections heart end face be positioned at one " working face ".Aforementioned working face is the face that produces moment in the motor.The technical staff should know in this professional domain, and in radial flux motors, aforementioned working face is the face of cylinder; In axial-flux electric machine, aforementioned working face is a planar annular; In motor proposed by the invention, aforementioned working face both can be that the face of cylinder also can be a planar annular.The working face number equals the stator core number in each unit motor.
Rotor in each unit motor can be the induction type that magneto, reluctance type or closed winding constitute, and also can be the various combining forms of above-mentioned form.Compare with stator core, loss proportion in total losses is very little in the rotor core, can use the rotor of related motor among the amorphous alloy material identical with stator or conventional silicon steel sheet manufacturing the present invention.When using conventional silicon steel sheet to make aforementioned rotor, the motor total losses can significantly not increase, and manufacturing cost can obviously reduce than adopting amorphous alloy material to make rotor simultaneously.
Novel non-crystaline amorphous metal motor of the present invention has M*K aforementioned unit motor.Wherein M is the number of phases, and K is the unit motor number that belongs to same phase.Wherein M is the integer greater than 2, and K is the integer greater than 1.All M*K*N stator core is arranged vertically, is installed on the same casing; All M*K rotor core is arranged vertically, is installed on the same axle.K the unit motor that belongs to same phase is all identical from the modular construction to the mounting arrangement.Out of phase unit motor has identical stator and rotor part structure, is that the mounting arrangement mode is different.First kind of concrete mounting means does; Be subordinated to respectively between the stator core of any two unit motors of adjacent phase and be installed on the casing for 360/M/p ° in the circumferencial direction difference; Wherein p is the motor number of pole-pairs, for all M*K of the integer rotor core greater than 1 is installed according to identical locus on axle.Second kind of concrete mounting means do, all M*K*N stator core is installed according to identical locus on casing, but be subordinated to respectively between the rotor core of any two unit motors of adjacent phase in 360/M/p ° of installation of circumferencial direction difference.When adopting the magneto rotor in the motor proposed by the invention, the setting angle difference between the aforementioned rotor core is reference with the permanent magnet South Pole or the arctic.When adopting reluctance type rotor, the setting angle difference between the aforementioned rotor core is reference with magnetic resistance maximum position or magnetic resistance minimum position.When adopting induction rotor, can't carry out according to second kind of concrete mounting means.Two kinds of concrete mounting meanss though give an example; But non-crystaline amorphous metal motor proposed by the invention is not limited to this two kinds of special mounting modes; Setting angle can be uneven between the out of phase unit motor, can produce the magnetomotive unit of equivalence rotation motor combination mounting means on the working face all in institute of the present invention coverage arbitrarily.
The armature winding of each unit motor is subordinated in a plurality of C sections half-edge hole in the heart of same group and passes through.Be in contact with one another and adopt any reliable mode to be fixed together through insulating material between armature winding and the half-edge hole.Belong in K the unit motor of same phase, all adopt series, parallel or series-parallel connection mode to interconnect between N*K armature winding.
Summary of benefits provided by the present invention is following:
The used stator core of motor is made up of series of identical core unit among the present invention, and each core unit can use the used related manufacturing process unshakable in one's determination of non-crystaline amorphous metal open-type inductance to accomplish.
Used iron core need not cut teeth groove in the invention, has farthest reduced rework process, has avoided the hidden danger of non-crystalline material recrystallization and additional stress.In addition, directly do not connect between aforementioned a series of stator cores, connect needed additional process between the structural member of having avoided different amorphous alloy materials to process, avoided the hidden danger of amorphous alloy material recrystallization and additional stress from another point of view.
Used core unit width equals the amorphous alloy thin bandwidth in the invention, but height and axial length do not receive the amorphous alloy material geometric dimension limit.And then the electric machine stator iron of being made up of these core unit and motor complete machine can very easily be realized maximizing.
Motor can have only stator need adopt amorphous alloy material.The stator core manufacturing approach of amorphous alloy material is simply ripe, and cost is relatively low.
Related motor adopts Circular Winding in the invention, and is simple in structure and reliably be connected through insulating material with stator core.Circular Winding easy to use supports as the stator structure master.Avoided using stator core to support the non-crystaline amorphous metal additional stress problem of bringing as the stator structure master.
The motor that the present invention proposes is made up of a series of unit motor, not only because special non-crystalline material occupation mode makes each unit motor realize easily maximizing, can also further enlarge motor volume and power through increasing unit motor number.In addition, can also expand number of motor phases through the method that changes unit motor stator or rotor mounting means and space layout to adapt to different demands.
Description of drawings
Fig. 1 is a kind of embodiment structure chart of non-crystaline amorphous metal horizontal magnetic field motor of the present invention, among the figure: 1 stator core, 2 armature winding; 3 rotors, 4001 rotor field spiders, 5001 motor shafts; 6001 electric machine casings,, 1001 constitute the unit motor of non-crystaline amorphous metal horizontal magnetic field motor;
Fig. 2 is that motor shown in Figure 1 is cut the front view that obtains open at A and B place, among the figure: 101C sections heart unit, 201C sections heart unit end face.
Fig. 3 a, Fig. 3 b, Fig. 3 c make the used amorphous alloy material cylinder iron core in said C sections heart unit; Among the figure: 111a is that end face is the amorphous alloy material cylinder iron core of round rectangle; 111b is that end face is circular amorphous alloy material cylinder iron core, and 111c is that end face is that oval-shaped amorphous alloy material cylinder is unshakable in one's determination.
Fig. 4 a; Fig. 4 b and Fig. 4 c are the sketch map by the amorphous alloy material main body C of manufacturing unshakable in one's determination sections heart unit process; Among the figure: 101a1 and 101a2 are two C sections heart unit that obtain after being blocked from the center by 111a; 101b1 and 101b2 are two C sections heart unit that obtain after being blocked from the center by 111b, and 101c1 and 101c2 are two C sections heart unit that obtain after being blocked from the center by 111c;
Fig. 5 along the circumferential direction launches the top view that obtains with stator core of said non-crystaline amorphous metal horizontal magnetic field motor 1 and said armature winding 2;
Fig. 6 is the another kind of embodiment of amorphous alloy horizontal magnetic field motor involved in the present invention;
Fig. 7 cuts the motor front view that obtains open from C among Fig. 6, and the 301st, the insulating barrier between armature winding 2 and the stator core 1.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Like Fig. 1 and shown in Figure 6, transverse magnetic field non-crystaline amorphous metal motor proposed by the invention is constituted by the identical unit motor 1001 of several structures.A plurality of unit motor 1001 along motor shaft 5001 axially-aligned in housing 6001.Unit motor 1001 comprises stator core 1, armature winding 2, rotor 3 and rotor field spider 4001.Stator number in the unit motor 1001 is N, and N equals 1 or 2.The number of the armature winding 2 in each unit motor 1001 is identical with stator 1 number.Shown in Fig. 1 be 1 situation, and equal 2 situation shown in Fig. 6 for N for N.Each stator core 1 is made up of a series of C sections hearts unit 101.In a unit motor 1001, total N*Q C sections heart unit is divided into the N group.It is the number that C sections heart unit packet number equals stator core 1 in the same unit motor.In every group of C sections heart unit, total C sections heart Q, Q is the integer greater than 1.Described Q the C sections heart 101 evenly arranged in a circumference, shown in Fig. 2 and Fig. 7.Each C sections heart angle that takes up space is 360/Q °.In the different embodiments, the opening of the C sections heart is towards being different.As in execution mode shown in Figure 1, the C sections heart 101 opening surfaces to motor radially.And in execution mode shown in Figure 6, the C sections heart 101 opening surfaces to motor shaft to.
Fig. 2 and Fig. 7 are the profiles of motor diverse location proposed by the invention, and wherein Fig. 2 is that the stator core unit is 1 situation in each unit motor 1001, and Fig. 7 is that the stator core unit is 2 situation in each unit motor 1001.Can find out that therefrom armature winding 2 circularizes structure, from Q the C sections heart 101 openings, pass.N armature winding is arranged in each unit motor 1001, identical with the number of stator core 1.
The cylinder iron core that the described C sections heart 101 is processed by amorphous thin ribbon heat makes described cylinder iron core has different concrete shapes, shown in Fig. 3 a, Fig. 3 b and Fig. 3 c.Every kind of cylinder amorphous alloy ribbon screw winding that uses unshakable in one's determination makes.Wherein rolling direction representes like arrow among the figure.W is that the width of amorphous alloy ribbon also is that width, the L of the C sections heart 101 is that C sections heart length, the H that obtains is C sections heart height.It is unshakable in one's determination to obtain difform cylinder as required: 111a is that end face is the non-crystaline amorphous metal cylinder iron core of round rectangle; 111b is that end face is circular non-crystaline amorphous metal cylinder iron core; 111c is that end face is that oval-shaped non-crystaline amorphous metal cylinder is unshakable in one's determination.
Shown in Fig. 4 a, Fig. 4 b and Fig. 4 c.After blocking, difform non-crystaline amorphous metal cylinder iron core can obtain the difform C sections heart.With difform described non-crystaline amorphous metal cylinder 111a unshakable in one's determination, 111b or 111c along the longitudinal direction, promptly H direction or L direction among Fig. 3 a block to obtain the said C sections heart 101.The common ground that the difform C sections heart has is: form two end faces 201 in the truncated position and have an opening, in order to hold armature winding 2.Aforementioned blocking is not necessarily to take place from cylinder geometric center unshakable in one's determination, so two C sections heart sizes that each cylinder 111a unshakable in one's determination, 111b or 111c obtain after blocking can be inequality.Be that 111a1 and 111a2 are can shape inequality, 111b1 and 111b2 are can shape inequality, 111c1 and 111c2 are can shape inequality.Concrete shape size can determine according to the motor optimal design.
Can find out that from the manufacture and the mounting means the unit motor of the C sections heart 101 width W of the C sections heart 101 equals the width W of amorphous alloy ribbon.Stator core 1 circumferential length that constitutes with Q the C sections heart 101 is proportional to Q*W.Though therefore the amorphous alloy ribbon width W is limited, can increases the stator core girth through the number Q that increases the C sections heart 101 that constitutes stator core 1, thereby increase motor diameter.C sections heart length L and height H are not limited by material width, so motor tooth portion's size and yoke portion size are not limited by material width yet.Gained non-crystaline amorphous metal motor can very easily be realized maximizing.
Have a rotor 3 in each unit motor, this rotor can be permanent magnetism, reluctance type or induction type.Its material can be that the non-crystaline amorphous metal material also can be traditional silicon steel material.
The transverse magnetic field non-crystaline amorphous metal motor that the present invention proposes comprises M*K altogether in aforementioned unit motor 1001.Wherein M is the number of phases, and K is the number of same interior mutually unit motor.All M*K unit motor component shapes are identical with composition.But, be subordinated to out of phase unit motor component and install different with space layout.Wherein a kind of space layout mode is as shown in Figure 5.In this mode, wherein differing space angle between the stator core 1 of adjacent phase is ang2.When even division differs, ang2=360/M/p °.Wherein p is the motor number of pole-pairs.
The horizontal magnetic field motor that the present invention proposes can further increase motor volume through the number K that increases number of phases M or same interior mutually unit motor 1001, and then increases power of motor.
Find out that from Fig. 2 and Fig. 7 armature winding 2 related among the present invention is loop configuration, and in the opening of Q the C sections heart, passes.Armature winding 2 contacts with stator core 1 through insulating barrier 301.Between per two adjacent C sections hearts 101, outside the armature winding 2 that has an insulating barrier 301 is exposed to.The space that can use between the adjacent C sections heart 101 is fixed together armature winding 2 through insulating barrier 301 and electric machine casing 6001.Realization serves as main the support with armature winding 2, and is supplemental support with stator core 1.Prevent that to greatest extent additional stress from appearring in the stator core 1 that amorphous alloy material is processed.
Claims (5)
1. horizontal magnetic field motor with non-crystalline alloy iron core, the unit motor (1001) identical by a plurality of structures constitutes, a plurality of unit motors (1001) along motor shaft (5001) axially-aligned in housing (6001); Each unit motor (1001) comprise N stator core (1) and with the same number of armature winding of stator core (1) (2); N equals 1 or 2; It is characterized in that in each unit motor (1001) of described horizontal magnetic field motor that total N*Q C sections heart unit (101) is divided into the N group; Wherein N is the packet count of C sections heart unit (101), equals the number of stator core (1); In every group, Q C sections heart unit (101) be along evenly arranging in the circumference, and each C sections heart unit (101) angle that takes up space is 360/Q °; Each armature winding (2) in each unit motor (1001) stationary part all is subordinated to a stator core (1), and armature winding (2) passes from the opening that constitutes this Q unshakable in one's determination C sections heart unit (101); Q is the integer greater than 1.
2. according to the described horizontal magnetic field motor of claim 1 with non-crystalline alloy iron core; It is characterized in that described armature winding (2) is connected with C sections heart unit (101) through insulating barrier (301), and be fixed together through insulating barrier (301) and electric machine casing (6001).
3. according to the described horizontal magnetic field motor of claim 1 with non-crystalline alloy iron core; It is characterized in that described C sections heart unit (101) is through following method manufacturing: the cylinder that uses the screw winding mode that non-alloy material thin coiled stock is processed arbitrary shape is unshakable in one's determination; Then with described cylinder iron core from vertically blocking, just obtain two C sections heart unit (101).
4. according to the described horizontal magnetic field motor of claim 1 with non-crystalline alloy iron core, it is characterized in that described unit motor (1001) along motor shaft (5001) axially-aligned in housing (6001); Increase the volume and the power of described horizontal magnetic field motor through the number that increases unit motor (1001).
5. according to the described horizontal magnetic field motor of claim 1, it is characterized in that different installation and the space layout of described unit motor (1001) through stator or rotor realizes not homophase, and expand number of motor phases with non-crystalline alloy iron core.
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| CN2010101214527A CN101795024B (en) | 2010-03-10 | 2010-03-10 | Horizontal magnetic field motor with non-crystalline alloy iron core |
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| CN2010101214527A CN101795024B (en) | 2010-03-10 | 2010-03-10 | Horizontal magnetic field motor with non-crystalline alloy iron core |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102545415B (en) * | 2012-02-15 | 2013-11-13 | 中国科学院电工研究所 | Radial magnetic field motor with amorphous alloy |
| JP5960068B2 (en) * | 2013-01-17 | 2016-08-02 | 東芝三菱電機産業システム株式会社 | Rotating electrical machine system |
| DE102013100501A1 (en) * | 2013-01-18 | 2014-07-24 | Linde Material Handling Gmbh | Industrial truck has stator material whose electric conductivity is smaller than that of rotor material |
| DE102014204165A1 (en) * | 2014-03-06 | 2015-09-10 | Robert Bosch Gmbh | Anchor for an electric motor and method for producing an armature |
| CN104129392B (en) * | 2014-07-07 | 2016-10-19 | 西安交通大学 | A kind of locomotive exchange transverse magnetic field driving means of bilateral planetary reduction gear |
| CN105610252B (en) * | 2015-09-25 | 2018-06-12 | 深圳市实能高科动力有限公司 | Amorphous iron alloy formula motor, stator module, stator core and its manufacturing method |
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| JP2004343903A (en) * | 2003-05-16 | 2004-12-02 | Meidensha Corp | Rotary linear synchronous motor |
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| JP2004343903A (en) * | 2003-05-16 | 2004-12-02 | Meidensha Corp | Rotary linear synchronous motor |
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