CN101030712A - Low-speed DC direct-driven brushless motor with segmented modularized stator structure - Google Patents
Low-speed DC direct-driven brushless motor with segmented modularized stator structure Download PDFInfo
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- CN101030712A CN101030712A CN 200710056426 CN200710056426A CN101030712A CN 101030712 A CN101030712 A CN 101030712A CN 200710056426 CN200710056426 CN 200710056426 CN 200710056426 A CN200710056426 A CN 200710056426A CN 101030712 A CN101030712 A CN 101030712A
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Abstract
The invention is concerned with directly driven low-speed direct current brushless motor of subsection blocking stator structure. It has stator iron core, and the iron core's circumference is divided into K1 sector group. The three phases, i.e. A, B, C of each sector group occupies 1 sector with same acreage, and 1 sector is one phase. The stator iron core of each sector setting with K2 tooth equably, and the closed two teeth has a groove, and the distance of closed tooth is a polar distance. There is press block between the said two sector iron cores, and each tooth of the said sector iron core is wrapped with loop. The coefficient of motor winding group is 1 and the end of sector winding group is short for continuous rolling. The each sector iron core is unattached for replacing with light quality and high efficiency, small tooth magnet conductivity torque.
Description
Technical field
The invention belongs to the electrical engineering technical field, relate to a kind of low-speed DC direct-driven brushless motor, relate in particular to a kind of sectional modular stator structural direct-driving type low-speed DC brushless motor.
Background technology
Low-speed DC brushless motor should be able to be exported torque under low speed big, and stable operation.This just requires the number of pole-pairs of motor to want a lot, selects for use flat structure to make motor can produce bigger torque and lower rotating speed under certain armature volume and armature voltage simultaneously.The DC Brushless Motor structure is an one, not only transport and keep in repair and all compare difficulty, and electric motor winding end laminates mutually, the end is longer, simultaneously in order to reduce the torque of permanent magnetism tooth magnetic conductance, the common oblique stator tooth distance of stator slot, the basic electromagnetic torque that motor can be exported reduces, and electric efficiency reduces.And the permagnetic synchronous motor of general modular stator structural, though stator without skewed slot, and adopts fractional-slot, winding overhang does not laminate mutually, the end is shorter, the stator winding coefficient is less than normal, influences motor energy index and efficient.Select for use which kind of stator structure could be at an easy rate a lot of with the number of poles design of motor, the motor stator winding end does not laminate mutually, the end is shorter, winding technique technology is simple, stator core just can reduce the torque of permanent magnetism tooth magnetic conductance effectively without skewed slot, stator winding coefficient height, the electric efficiency height is the focus of low-speed DC brushless motor technical research.
Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art, a kind of modularized motor structure direct driving type low-speed DC Brushless Motor is provided, the stator core of the electric machine stand inside of this motor is not an integral body that connects continuously, but segmentation, have whole uniformly in each stator core apart from teeth groove, the winding of each iron leg heart and upward coiling unshakable in one's determination is just the same, the winding of every iron leg heart and top coiling thereof only belongs to a specific phase, winding coefficient is 1, and stator winding end is short, be easy to machinery coiling continuously, be easy to change, quality is lighter relatively, the efficient height, tooth magnetic conductance harmonic torque is little.
Sectional modular stator structural direct-driving type low-speed DC brushless motor of the present invention, it comprises support, before the support both sides, rear end cap, armature spindle, terminal box, position transducer, the position transducer terminal box, Y connects three phase windings, be fixed on the sectional modular stator core in the described support, be installed in the rotor on the described armature spindle, described rotor circumference is provided with main pole Nd-Fe-B permanent magnet and rotating pole-piece, described rotating pole-piece internal fixation has the pole shoe axle, described stator core is the segmentation setting, and the internal diameter circumference of described stator core is divided into k uniformly
1Individual set of sectors respectively accounts for 1 sector of the same area at each set of sectors A, B, C three-phase, and 1 sector belongs to a phase, is provided with k in the stator core of each sector uniformly
2Individual tooth, between described adjacent two teeth, have 1 groove, the tooth pitch of described adjacent teeth is a pole span, be provided with stator with described adjacent two sectors between the stator core of described adjacent two sectors and be fixed on briquetting on the described support, be wound with whole on each tooth in the described stator core apart from concentrating coil, on the adjacent teeth in sector or on the part adjacent teeth each is whole can be by the identical rule series connection of electromotive force direction apart from concentrating coil, constitute the sectional modular stator phase winding assembly of a phase, described every phase winding is in series or in parallel to form by the sectional modular stator phase winding assembly of same phase.
Be divided into k in the base inner circumference of motor of the present invention
1Individual uniform set of sectors respectively accounts for 1 sector of the same area at each set of sectors A, B, C three-phase, and 1 sector belongs to a phase, lays 1 sectional modular stator core in 1 sector, is provided with k uniformly in the every sectional modular stator core
2Individual tooth.The sectional modular stator core is not an integral body that connects continuously, but segmentation, have whole uniformly on the iron core apart from teeth groove, the winding of each iron leg heart and upward coiling unshakable in one's determination is just the same, the winding of every iron leg heart and top coiling thereof only belongs to a specific phase, winding coefficient is 1, and machinery coiling is continuously lacked, is easy to stator winding end; Each section be each phase stator core separate on the electric machine stand space, be easy to change, quality is relatively light, efficient is high, the torque of tooth magnetic conductance is little.
Description of drawings
Fig. 1 is a sectional modular stator structural direct-driving type low-speed DC brushless motor schematic front view of the present invention;
The end view of Fig. 2 motor shown in Figure 1;
Fig. 3 is example 1 of the present invention (m=3, t
ZZ=4 τ/3, k
1=1, k
2=7,2p=22) modularized motor structure direct driving type low-speed DC Brushless Motor magnetic structure profile;
Fig. 4 is example 2 of the present invention (m=3, t
ZZ=5 τ/3, k
1=2, k
2=3,2p=22) modularized motor structure direct driving type low-speed DC Brushless Motor magnetic structure profile;
Fig. 5 is example 1 of the present invention (m=3, t
ZZ=4 τ/3, k
1=1, k
2=8,2p=26) modularized motor structure direct driving type low-speed DC Brushless Motor magnetic structure profile;
Fig. 6 is example 2 of the present invention (m=3, t
ZZ=5 τ/3, k
1=2, k
2=4,2p=26) modularized motor structure direct driving type low-speed DC Brushless Motor magnetic structure profile.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
Sectional modular stator structural direct-driving type low-speed DC brushless motor of the present invention, it comprises support 8, the front end housing 3 of support both sides, rear end cap 16, bearing 2, rotating shaft 1, terminal box 18, position transducer, position transducer terminal box 15, Y connects three phase windings, be fixed on the modular stator iron core 5 in the described support, be installed in the rotor on the described armature spindle, described rotor circumference is provided with main pole Nd-Fe-B permanent magnet 17 and rotating pole-piece 9, described rotating pole-piece internal fixation has pole shoe axle 10, described stator core is the segmentation setting, and the internal diameter circumference of described stator core is divided into k uniformly
1Individual set of sectors respectively accounts for 1 sector of the same area at each set of sectors A, B, C three-phase, and 1 sector belongs to a phase, and a sectional modular stator core is arranged in per 1 sector, is provided with k uniformly in every section sectional modular stator core
2Individual tooth, between described adjacent two teeth, have 1 groove, the tooth pitch of described adjacent teeth is a pole span, be provided with stator with described adjacent two sectors between the sectional modular stator core of described adjacent two sectors and be fixed on briquetting 6 on the described support, be wound with whole on each tooth in the described sectional modular stator core apart from concentrating coil, on the adjacent teeth in every section sectional modular stator core or on the part adjacent teeth each is whole can be by the identical rule series connection of electromotive force direction apart from concentrating coil, constitute the sectional modular stator phase winding assembly of a phase, described every phase winding is in series or in parallel to form by the sectional modular stator phase winding assembly of same phase.
By punching silicon-steel, laminate in the sectional modular stator core 5 of making and have many teeth and groove uniformly with special security measure, tooth pitch is a pole span.Winding is concentrated in coiling on each tooth, obviously is whole apart from concentrating winding.Because it is whole opposite on adjacent two teeth apart from the induced electromotive force phase place of concentrating winding, connect the rule that initial and end connects tail apart from the two ends of concentrating the winding lead-out wire according to head and connect by will be on each tooth whole, make that whole being together in series apart from the electromotive force same-phase of concentrating winding constitutes sectional modular stator winding 4 on each tooth.The aggregate that is wound with sectional modular stator winding 4 in the sectional modular stator core 5 is called as the sectional modular stator module.Obviously, it is 1 that sectional modular stator winding 4 this whole distances are concentrated the winding coefficient of winding, and the end of winding is very short, and the concentrated winding overhang on each tooth does not laminate mutually; The concentrated winding of whole distance on each tooth to a last continuous coiling of tooth, is fit to mechanical coiling, labor productivity height from first tooth very much; Winding electric potential difference on adjacent two teeth is little, is convenient to winding insulation between groove, labor and material saving.Under identical stator core length situation, because the end of winding is short, the electric machine stand axial length can shorten, and quality is lighter relatively, the efficient height.All each section sectional modular stator modules in the motor are just the same, also are convenient to produce, keep in repair and change.Sectional modular stator core 5 is fixed on the support 8 by briquetting fastening bolt 7 by briquetting 6 between all each section sectional modular stator module sections and the section, thereby constitutes a complete motor stator.Briquetting 6 is done wedgewise, so that by it the sectional modular stator module is pressed against on the support tightly.This space both can be designed to a briquetting between each section sectional modular stator module section and the section, also can be designed as two.When being designed to one, briquetting 6 all is the inclined-plane with both sides sectional modular stator module contact-making surface unshakable in one's determination, the mating surface that contacts with inboard wall of base is an arc surface, another side towards rotor is the plane, arc surface is littler than the plane, be that briquetting 6 is done wedgewise, its radially two sides be arc surface, its axial two sides are parallel surface.When sectional modular stator module section and section space hour, should adopt a briquetting, but the installation of sectional modular stator module and dismantle not too convenient.When the modular stator component section with the section space bigger, should adopt two briquettings, the wedge shape briquetting that is equivalent to will be only with a briquetting time is divided into two in the centre position of radial direction, the sectional modular stator module is compressed by the briquetting of himself both sides like this, is convenient to very much the installation and removal of sectional modular stator module.The sectional modular stator module belongs to different phases respectively for adjacent two sections.Adhere to separately connect by specific rule again on each sectional modular stator module of each phase after, after the connection rule that all adopts as series, parallel or connection in series-parallel connects, then constitute each phase sectional modular stator winding, the induced electromotive force that should guarantee every parallel branch when it should be noted that parallel connection is with big or small same-phase.Mutual deviation 2 π/3 electrical degrees on the induced electromotive force phase place of three phase windings, three-phase winding Y connects, and three phase winding inputs are received respectively on the connection box for motor 18.Be connected on the special-purpose frequency conversion drive power output terminal of DC Brushless Motor through terminal box, power cable.
In the three-phase modular stator structural low-speed DC brushless motor, position transducer plays a part to measure rotor magnetic pole position, it provides correct commutation information for the logic switching circuit in the DC Brushless Motor driver, the position signalling that is about to the p-m rotor main pole converts the signal of telecommunication to, goes to control the stator winding commutation then.Described position transducer is preferably the magnetosensitive position transducer, the optimum magnetosensitive position transducer that adopts is the Hall switch position transducer, it comprises stator 14 and rotor 13, wherein position transducer rotor 13 is arranged in the side with the profile of the corresponding rotor wheel hub 10 of back end cover for motor 16 those sides, promptly the fan-shaped permanent magnet of p (motor number of pole-pairs) piece evenly is installed in the whole circumference space of that side of the profile of rotor hub 10, the magnetizing direction unanimity of p piece permanent magnet, it all is the electrical axis direction, for position transducer stator 14 polarity unanimities all is the N utmost point, and the space magnetic field that can detected every position transducer permanent magnet produces at the switching Hall components at position sensor stator 14 places should just in time be a pole span in the circumference range of rotation, and the center line of every position transducer permanent magnet and the axis of rotor main pole N utmost point permanent magnet should be on the same rotor radial plane simultaneously.Position transducer stator 14 is installed in rear end cap 16 inboards, position transducer stator 14 mainly is made up of circuit and support component thereof that 3 switching Hall components constitute, the p piece permanent magnet that 3 switching Hall components and rotor sensor 13 are arranged in the profile side of rotor wheel hub 10 is on the same rotor radius of turn position, respectively with A, B, 3 switching Hall components that are welded on the printed substrate of C three phase winding correspondences are gone up 2 π/3 electrical degrees of being separated by on the circumferential position with rotation, respectively corresponding to A, B, the axial location setting of C three phase windings, and riding position all lags behind phase winding axis π/6 electrical degrees separately, with guarantee when each phase winding of stator logical respectively with each mutually the emf phase waveform be the top width of trapezoidal wave same-phase or antiphase when being the square wave electric current of 2 π/3 electrical degrees, the electromagnetic torque of driving or formulation effect is played in the generation of modularized motor structure direct stream brushless motor stably.The power supply line and the output signal line thereof that are welded on 3 switching Hall components on the printed substrate are received on the position transducer terminal box 15 that is installed in back end cover for motor 16 outsides.Position transducer terminal box 15 is connected by the position input port of signal cable with the special-purpose frequency conversion drive power supply of DC Brushless Motor.After armature spindle 1 two ends install bearing 2, again by front end housing 3 and rear end cap 16 support, location and installation is in the support 8 that installs sectional modular stator core 5 and modular stator winding 4.
The axial line distance of first tooth on the axis of last tooth and adjacent next section sectional modular stator module on one section sectional modular stator module, can get 4/3 or 5/3 pole span according to different designs, this moment, briquetting 6 shared locus accounted for 1/3 or 2/3 pole span on circumference.If regard adjacent three sections sectional modular stator modules that belong to A, B, C three-phase respectively as one group, suppose to be divided into k in the base inner circumference of motor
1Individual uniform set of sectors is promptly placed k altogether in the electric machine stand
1Group three-phase sectional modular stator module; Have k in every section sectional modular stator core
2Individual tooth.Because the number of poles 2p of motor must be an even number, the tooth pitch t of adjacent two teeth on adjacent two sections of the sectional modular stator module
ZZGet 4/3 or get 5/3 pole span on earth, with k
1And k
2Numerical value relevant, t
ZZ, k
1, k
2To satisfy following relation between the three.
1. working as the stator number of phases is three-phase m=3, the adjacent two sections tooth pitch t that go up two adjacent teeth of sectional modular stator module
ZZBe designed to 4/3 pole span (promptly only having more 1/3 pole span) than a pole span, and k
2=2k-1 (k=1 wherein, 2,3 ...) when being odd number, then the number of poles 2p and the k of p-m rotor
1, k
2Between the pass be
2p＝mk
1(k
2+1/3)＝3k
1(2k-1+1/3)＝2k
1(3k-1)
Obviously, k in the case
1It can be any natural number.
In the case, a stator tooth spatially occupies θ apart from being a pole span
e=π electrical degree, on the adjacent two sections sectional modular stator modules in front and back separately the whole distance on first tooth concentrate the phasic difference of winding induced electromotive force phase
(k
2+1/3)π＝(2k-1+1/3)π＝2kπ-2π/3
Be mutual deviation-2 π/3 electrical degrees.At this moment, the sectional modular stator module that adheres to three-phase separately at stator space by A, B, C ... rule is arranged.
The example that Fig. 2 lifted meets the said structure rule, m=3 wherein, t
ZZ=4 τ/3, k
1=2, k
2=9,2p=56.
The example that Fig. 3 lifted also meets the said structure rule, m=3 wherein, t
ZZ=4 τ/3, k
1=1, k
2=7,2p=22.
Because the stator teeth groove exists, and can cause the torque of tooth magnetic conductance between stator teeth groove and rotor permanent magnetic field, a stator tooth is apart from volume exclusion θ for the torque of tooth magnetic conductance
Ze=2 π space electrical degrees, and the torque of tooth magnetic conductance is electrical degree θ between p-m rotor field axis and stator tooth axis
ZeFunction.The tooth magnetic conductance torque of a stator tooth can be formulated as
In the formula, v---the harmonic number of tooth magnetic conductance harmonic torque, v=1,2,3
θ
Ze---electrical degree between p-m rotor field axis and stator tooth axis, the rad of unit;
T
Zmv---the peak value of the v time tooth magnetic conductance harmonic torque, the Nm of unit;
T
Z---the tooth magnetic conductance torque of a stator tooth, the Nm of unit.
The sectional modular stator module that adheres to three-phase separately at stator space by A, B, C ... when rule is arranged, no matter the polarity of rotor permanent magnetism magnetic pole, if p-m rotor field axis and A mutually between the stator tooth axis on the sectional modular stator module space electrical degree be θ
Ze, then the space electrical degree between the stator tooth axis on p-m rotor field axis and B, the C two-phase sectional modular stator module is respectively (θ
Ze-2 π/3) and (θ
Ze-4 π/3).
When v=1, on the stator on A, B, each section of the C three-phase sectional modular stator module separately i.e. 1 the tooth magnetic conductance torque of low order cancel out each other after synthetic
T
Z1＝k
1k
2(T
ZA1+T
ZB1+T
ZC1)
＝k
1k
2T
Zm1[sinθ
Ze+sin(θ
Ze-2π/3)+sin(θ
Ze-4π/3)]
＝0
In like manner, when v=6k ± 1 (k=1 wherein, 2,3 ...) time, i.e. v=5,7,11,13 ... the time, also can obtain, each time tooth magnetic conductance harmonic torque after synthesizing is cancelled out each other, promptly
T
Z(6k±1)＝0 (k＝1，2，3……)
And when v=2, separately 2 tooth magnetic conductance harmonic torques are also cancelled out each other after synthetic on A, B, each section of the C three-phase sectional modular stator module
T
Z2＝T
ZA2+T
ZB2+T
ZC2
＝k
1k
2T
Zm2[sin2θ
Ze+sin2(θ
Ze-2π/3)+sin2(θ
Ze-4π/3)]
＝k
1k
2T
Zm2[sin2θ
Ze+sin(2θ
Ze-4π/3)+sin(2θ
Ze-2π/3)]
＝0
In like manner, when v=6k ± 2 (k=1 wherein, 2,3 ...) time, i.e. v=4,8,10,14 ... the time, also can obtain, each time tooth magnetic conductance harmonic torque after synthesizing is also cancelled out each other, promptly
T
Z(6k±2)＝0 (k＝1，2，3……)
And when v=3k (k=1 wherein, 2,3 ...) time, i.e. v=3,6,9 ... the time, separately 3 times and 3 multiple time tooth magnetic conductance harmonic torque after synthetic are on A, B, each section of the C three-phase sectional modular stator module
T
Z3k＝T
ZA3k+T
ZB3k+T
ZC3k
＝k
1k
2T
Zm3k[sin3kθ
Ze+sin3k(θ
Ze-2π/3)+sin3k(θ
Ze-4π/3)]
＝3k
1k
2T
Zm3ksin3kθ
Ze (k＝1，2，3……)
Obviously, only exist 3 times and 3 multiple time tooth magnetic conductance harmonic torque at whole motor internal.And other number of times, 1 tooth magnetic conductance torque the strongest in particularly traditional magneto has not existed.
2. working as the stator number of phases is three-phase m=3, the adjacent two sections tooth pitch t that go up two adjacent teeth of sectional modular stator module
ZZGet 5/3 pole span (promptly only having more 2/3 pole span) than a pole span, and k
2=2k-1 (k=1 wherein, 2,3 ...) when being odd number, then the number of poles 2p and the k of p-m rotor
1, k
2Between the pass be
2p＝mk
1(k
2+2/3)＝3k
1(2k-1+2/3)＝k
1(6k-1)
Obviously, k in the case
1It must be even number.
In the case, the whole distance on first tooth is concentrated the interior induced electromotive force phase phasic difference of winding on the adjacent two sections sectional modular stator modules in front and back
(k
2+2/3)π＝(2k-1+2/3)π＝2kπ-π/3
Be mutual deviation-π/3 electrical degrees.Then the sectional modular stator module stator space should by A ,-C, B ,-A, C ,-B ... rule is arranged.
The example that Fig. 4 lifted also meets the said structure rule, m=3 wherein, t
ZZ=5 τ/3, k
1=2, k
2=3,2p=22.
Can prove in like manner that in such cases whole motor internal also only exists 3 times and 3 multiple time tooth magnetic conductance torque.
3. working as the stator number of phases is three-phase m=3, the adjacent two sections tooth pitch t that go up two adjacent teeth of sectional modular stator module
ZZGet 4/3 pole span (promptly only having more 1/3 pole span) than a pole span, and k
2=2k (k=1 wherein, 2,3 ...) when being even number, then the number of poles 2p and the k of p-m rotor
1, k
2Between the pass be
2p＝mk
1(k
2+1/3)＝3k
1(2k+1/3)＝k
1(6k+1)
Obviously, k in the case
1It must be even number.
In the case, the whole distance on first tooth is concentrated the interior induced electromotive force phase phasic difference of winding on the adjacent two sections sectional modular stator modules in front and back
(k
2+1/3)π＝(2k+1/3)π＝2kπ+π/3
Be mutual deviation+π/3 electrical degrees.The sectional modular stator module that is equivalent to adhere to separately three-phase stator space by A ,-B, C ,-A, B ,-C ... rule is arranged.
The example that Fig. 5 lifted meets the said structure rule, m=3 wherein, t
ZZ=4 τ/3, k
1=2, k
2=4,2p=26.
In like manner can prove at whole motor internal and also only exist 3 times and time tooth magnetic conductance torque of 3 multiple.
4. working as the stator number of phases is three-phase m=3, the adjacent two sections tooth pitch t that go up two adjacent teeth of sectional modular stator module
ZZGet 5/3 pole span (promptly only having more 2/3 pole span) than a pole span, and k
2=2k (k=1 wherein, 2,3 ...) when being even number, then the number of poles 2p and the k of p-m rotor
1, k
2Between the pass be
2p＝mk
1(k
2+2/3)＝3k
1(2k+2/3)＝2k
1(3k+1)
Obviously, k in the case
1It can be any natural number.
In the case, the whole distance on first tooth is concentrated the interior induced electromotive force phase phasic difference of winding on the adjacent two sections sectional modular stator modules in front and back
(k
2+2/3)π＝(2k+1/3)π＝2kπ+2π/3
Be mutual deviation+2 π/3 electrical degrees.The sectional modular stator module that is equivalent to adhere to separately three-phase at stator space by A, C, B ... rule is arranged.
The example that Fig. 6 lifted meets the said structure rule, m=3 wherein, t
ZZ=5 τ/3, k
1=1, k
2=8,2p=26.
In like manner can prove at whole motor internal and only exist 3 times and time tooth magnetic conductance torque of 3 multiple.
By above-mentioned four kinds of situations as seen, no matter the tooth pitch of adjacent two teeth on adjacent two sections of the sectional modular stator module is designed to 4/3 pole span or 5/3 pole span, whole motor internal all only exists 3 times and 3 multiple time tooth magnetic conductance torque.If when the design of stator profile of tooth and rotating pole-piece, take into account very little with 3 tooth magnetic conductances designs of stator tooth simultaneously, then the tooth magnetic conductance torque of sectional modular stator structural direct-driving type low-speed DC brushless motor will be very little.
Adopt stator and rotor structure of the present invention, motor can be designed to a lot of numbers of poles at an easy rate, thereby realizes the motor low cruise easily, and the electromagnetic torque fluctuation on the motor shaft is little, and vibration, the noise of motor are low.
Claims (8)
1. sectional modular stator structural direct-driving type low-speed DC brushless motor, it comprises support, before the support both sides, rear end cap, armature spindle, terminal box, position transducer, the position transducer terminal box, Y connects three phase windings, be fixed on the modular stator iron core in the described support, be installed in the rotor on the described armature spindle, described rotor circumference is provided with main pole Nd-Fe-B permanent magnet and rotating pole-piece, described rotating pole-piece internal fixation has the pole shoe axle, it is characterized in that: described modular stator is unshakable in one's determination to be the segmentation setting, and the internal diameter circumference of described sectional modular stator core is divided into k uniformly
1Individual set of sectors respectively accounts for 1 sector of the same area at each set of sectors A, B, C three-phase, and 1 sector belongs to a phase, is provided with K uniformly in the sectional modular stator core of each sector
2Individual tooth, between described adjacent two teeth, have 1 groove, the tooth pitch of described adjacent teeth is a pole span, be provided with stator with described adjacent two sectors between the sectional modular stator core of described adjacent two sectors and be fixed on briquetting on the described support, be wound with whole on each tooth in the described sectional modular stator core apart from concentrating coil, on the adjacent teeth in every section sectional modular stator core each is whole can be by the identical rule series connection of electromotive force direction apart from concentrating coil, constitute the sectional modular stator phase winding assembly of a phase, described every phase winding is in series or in parallel to form by the sectional modular stator phase winding assembly of same phase.
2. sectional modular stator structural direct-driving type low-speed DC brushless motor according to claim 1, it is characterized in that: described briquetting is at volume exclusion 1/3 pole span or 2/3 pole span, and the distance of the centreline space of the adjacent teeth in the sector sectional modular stator core of described adjacent both sides is 4/3 pole span or 5/3 pole span.
3. sectional modular stator structural direct-driving type low-speed DC brushless motor according to claim 2, it is characterized in that: described briquetting is one, tangential two sides of described briquetting are wedge shape, its radially two sides be arc surface, its axial two sides are parallel surface.
4. sectional modular stator structural direct-driving type low-speed DC brushless motor according to claim 2, it is characterized in that: described briquetting is two, tangential two sides of described briquetting are wedge shape, its radially two sides be arc surface, its axial two sides are parallel surface.
5. sectional modular stator structural direct-driving type low-speed DC brushless motor according to claim 1 is characterized in that: described main pole Nd-Fe-B permanent magnet is arranged on the rotor circumference between two adjacent rotating pole-pieces.
6. sectional modular stator structural direct-driving type low-speed DC brushless motor according to claim 1, it is characterized in that: described rotating pole-piece is to be formed by silicon steel plate stacking, and is fixed by the axle of the steel of solid magnetic conduction.
7. sectional modular stator structural direct-driving type low-speed DC brushless motor according to claim 1 is characterized in that: described position transducer is the magnetosensitive position transducer.
8. sectional modular stator structural direct-driving type low-speed DC brushless motor according to claim 6, it is characterized in that: described magnetosensitive position transducer is the Hall switch position transducer, it comprises stator and rotor, described rotor is for evenly being arranged on the fan-shaped permanent magnet of polylith of the profile circumference side of the corresponding rotor wheel hub of described back end cover for motor, described stator is fixed on the described back end cover for motor inboard, three switching Hall components on the described stator are respectively corresponding to A, B, the axial location setting of C three phase windings, and riding position all lags behind phase winding axis π/6 electrical degrees separately.
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| CN 200710056426 CN101030712A (en) | 2007-01-09 | 2007-01-09 | Low-speed DC direct-driven brushless motor with segmented modularized stator structure |
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|---|---|---|---|
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| CN101951105A (en) * | 2010-09-29 | 2011-01-19 | 东南大学 | Modularized permanent magnet synchronous generator |
| CN102142723A (en) * | 2010-11-22 | 2011-08-03 | 常州市裕成富通电机有限公司 | Motor stator used for electrombile and half-turn winding method of motor stator winding |
| CN102322401A (en) * | 2011-08-30 | 2012-01-18 | 国电联合动力技术有限公司 | Novel direct drive type permanent magnet wind generating set |
| CN107171459A (en) * | 2017-07-18 | 2017-09-15 | 深圳华引动力科技有限公司 | The motor of the stator core of each phase salient pole centralized arrangement and each phase salient pole centralized arrangement |
| CN110098708A (en) * | 2019-05-20 | 2019-08-06 | 南京航空航天大学 | A kind of durface mounted permanent magnet synchronous motor of stator-sectional |
| CN110365129A (en) * | 2018-04-09 | 2019-10-22 | 建准电机工业股份有限公司 | Three-phase motor stator |
| CN110556931A (en) * | 2019-09-24 | 2019-12-10 | 哈尔滨工业大学 | Modularized multi-phase alternating current fault-tolerant motor |
| CN110810017A (en) * | 2018-08-07 | 2020-02-21 | 株式会社牧田 | Electric working machine |
| CN111786531A (en) * | 2020-07-13 | 2020-10-16 | 王浩然 | Stepping motor coil |
| CN112640259A (en) * | 2018-08-24 | 2021-04-09 | 美蓓亚三美株式会社 | Motor and method for manufacturing motor |
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2007
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Cited By (12)
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| CN101951105A (en) * | 2010-09-29 | 2011-01-19 | 东南大学 | Modularized permanent magnet synchronous generator |
| CN102142723A (en) * | 2010-11-22 | 2011-08-03 | 常州市裕成富通电机有限公司 | Motor stator used for electrombile and half-turn winding method of motor stator winding |
| CN102322401A (en) * | 2011-08-30 | 2012-01-18 | 国电联合动力技术有限公司 | Novel direct drive type permanent magnet wind generating set |
| CN107171459A (en) * | 2017-07-18 | 2017-09-15 | 深圳华引动力科技有限公司 | The motor of the stator core of each phase salient pole centralized arrangement and each phase salient pole centralized arrangement |
| CN110365129A (en) * | 2018-04-09 | 2019-10-22 | 建准电机工业股份有限公司 | Three-phase motor stator |
| CN110810017A (en) * | 2018-08-07 | 2020-02-21 | 株式会社牧田 | Electric working machine |
| CN112640259A (en) * | 2018-08-24 | 2021-04-09 | 美蓓亚三美株式会社 | Motor and method for manufacturing motor |
| US11996735B2 (en) | 2018-08-24 | 2024-05-28 | Minebea Mitsumi Inc. | Motor |
| CN110098708A (en) * | 2019-05-20 | 2019-08-06 | 南京航空航天大学 | A kind of durface mounted permanent magnet synchronous motor of stator-sectional |
| CN110556931A (en) * | 2019-09-24 | 2019-12-10 | 哈尔滨工业大学 | Modularized multi-phase alternating current fault-tolerant motor |
| CN110556931B (en) * | 2019-09-24 | 2021-07-06 | 哈尔滨工业大学 | Modularized multi-phase alternating current fault-tolerant motor |
| CN111786531A (en) * | 2020-07-13 | 2020-10-16 | 王浩然 | Stepping motor coil |
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