CN107887988A - For driving the electro-motor of ABS system - Google Patents

For driving the electro-motor of ABS system Download PDF

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Publication number
CN107887988A
CN107887988A CN201710906556.0A CN201710906556A CN107887988A CN 107887988 A CN107887988 A CN 107887988A CN 201710906556 A CN201710906556 A CN 201710906556A CN 107887988 A CN107887988 A CN 107887988A
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CN
China
Prior art keywords
stator
electro
winding
motor
motor described
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710906556.0A
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Chinese (zh)
Inventor
S.A.埃文斯
C.屈尔斯海默
D.苏亚雷斯-塞米纳里奥
J.魏德利希
L.杜里克斯
M.彼得斯
W.雷布
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Robert Bosch GmbH
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Robert Bosch GmbH
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Publication of CN107887988A publication Critical patent/CN107887988A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/08—Salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles
    • H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
    • H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
    • H02K1/2766—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect
    • H02K1/2773—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect consisting of tangentially magnetized radial magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/08—Forming windings by laying conductors into or around core parts
    • H02K15/085—Forming windings by laying conductors into or around core parts by laying conductors into slotted stators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
    • H02K21/16—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/28—Layout of windings or of connections between windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information

Abstract

The present invention relates to a kind of electro-motor for being used to drive the ABS system in motor vehicle（100）, internal rotor of the electro-motor with permanent excitation（120）And external stator（150）, the external stator（150）With at least 12 stator tooths（S1‑12）, and the internal rotor（120）With predetermined number of poles in circumference equably pole spaced apart（P1‑10）, wherein, the number of poles corresponds to stator tooth（S1‑12）Reduce the number after two integral multiple, and it is described in circumference equably pole spaced apart（P1‑10）Constructed to spoke-like respectively to concentrate corresponding magnetic flux.

Description

For driving the electro-motor of ABS system
Technical field
The present invention relates to a kind of electro-motor for being used to drive the ABS system in motor vehicle, the electro-motor is with forever The internal rotor and external stator of long excitation.
Background technology
Carried by known in the art（Anti-Blockier-System：Anti-lock braking system）The motor vehicle of ABS system, The d.c. motor with brush is used in the ABS system.In order to reduce this motor vehicle when unpredictably there is barrier Until the corresponding reaction time checked completely, especially, it is necessary to carry under the background of the motor vehicle at least semi-automatically operated The corresponding rate of discharge for the hydraulic brake fluid that height uses in existing ABS system.But here, it is equipped with the direct current horse of brush Up in the case where not tolerating the current drain significantly improved correspondingly, in terms of accordingly having mechanical output to be obtained, outstanding It is that technical limitation has been met with terms of moment of torsion.
The content of the invention
The present invention relates to a kind of electro-motor for being used to drive the ABS system in motor vehicle, the electro-motor is with forever The internal rotor and external stator of long excitation, wherein, external stator has at least 12 stator tooths, and internal rotor has predetermined pole It is several in circumference equably pole spaced apart, wherein, after the number of poles corresponds to the integral multiple that stator tooth reduces two Number.It is described in circumference the ground extremely concentration corresponding magnetic flux arranged and spoke-like ground structure respectively equably spaced apart Make.
Therefore the present invention can provide a kind of electro-motor with high torque density, because taking full advantage of with high The magnetic flux of the pole of flux density.In addition, generated by the slot number-number of poles-combination accordingly selected for good weak magnetic characteristic Suitable coordination air gap magnetic leakage factor.The air gap magnetic leakage factor of coordination is at this in about 0.96 order of magnitude.In addition, Less magnetic stop torque can also be realized based on selected slot number-number of poles-combination.It is outer fixed being given with the electric current of pure chordwise More smooth, non-choppiness change in torque curve is produced in the case of son feed.Due to the stator tooth of greater number, each Stator tooth obtains small ampere winding, thus reduces the risk of demagnetization.Selected slot number-number of poles-combination also assures in addition Balanced magnetic draw or the power effect being applied on internal rotor.By electro-motor of the invention because the optimization of magnetic flux is total Higher efficiency is reached on body, therefore result is that the major part of conveyed electric energy is all converted into mechanical energy.
In one embodiment, each stator tooth is equipped with winding, wherein, each two are straight along the circumferencial direction of external stator Connect adjacent winding to be wound on the contrary and form winding pair, and each two opposed windings in diametric(al) are to respectively Form a winding group or phase.
Therefore the magnetic flux of equally distributed crosslinking is generated in circumference.
In another embodiment, every second stator tooth is equipped with winding, wherein, each two are right in diametric(al) The winding put is wound and forms winding pair or phase on the contrary.
It is roughly the same with the case of the embodiment of the electro-motor with the stator tooth continuously wound in order to reach Crosslinking magnetic flux, the number of turn of winding must double herein.The rolled and width in circumference of not rolled stator tooth Degree can select different big respectively if necessary.
Design to the preferred burst of external stator and unsegmented.What therefore the present invention can realize the sane of external stator and stablize Construction, because the external stator does not have connecting portion along the circumferential direction.
At least 12 stator tooths preferably have a trapezoidal stator slot with stator channel opening respectively, described fixed The A/F of pilot trench opening is set so big respectively so that realizes winding particular by the winding needle of railway guidance The manufacturability of automation.
Therefore the simplified manufacturability of winding is generated in the case where tolerating worse weak magnetic characteristic.
In another embodiment, external stator is fragmented（geblecht）And with least 12 circumference that The stator segment of this arrangement, the stator segment carry the base section of annulus section shape, one are respectively arranged at the stator segment The stator tooth being oriented radially inwards.
Therefore the winding of stator tooth can be before the assembling of outer stator just without any problems and on no process technology Limitation in the case of manufactured by automatic method for winding.
At least 12 stator tooths preferably respectively constitute a trapezoidal stator slot with stator channel opening, described fixed The tangential A/F of pilot trench opening is configured to the magnetic resistance of the stator channel opening of reduction acting air gap.
Therefore the magnetic resistance of the stator channel opening with acting air gap can be reduced.
According to a preferable design, the pole is used tangentially and is alternately opposite the magnetized permanent magnetism bodily form respectively Into.
Therefore internal rotor can be in rotation by applying rotating excitation field by external stator with high torque.
Permanent magnet preferably has the cross-sectional geometry of a substantial rectangular respectively.
Thus provide the relatively simple structural architecture of the pole.
According to one, technically favourable design, permanent magnet are formed with Nd-Fe-B-alloy.
Therefore permanent magnet produces especially strong magnetic flux under rational cost consumption.
At least three windings group mutually preferably connects in the way of triangle connection or Y-connection.
Winding group therefore being capable of suitable, the preferably power electronic device of the three-phase alternating current of sinusoidal pattern or the control by offer Electronic device processed is fed.
According to an improvement project, at least three winding pair or phase are in the way of triangle connection or Y-connection To connect.
Therefore winding group can present by suitable, the preferably three-phase alternating current of sinusoidal pattern power electronic device is provided Electricity.
Brief description of the drawings
The present invention explains in detail in the description which follows by the embodiment shown in accompanying drawing.In accompanying drawing：
Fig. 1 shows the schematic cross-section of first embodiment of electro-motor；
Fig. 2 shows the schematic cross-section of second embodiment of electro-motor；
Fig. 3 shows the schematic cross-section of the 3rd embodiment of electro-motor；
Fig. 4 shows the line map that Fig. 1 is connected with Fig. 2 electro-motor with triangle；
Fig. 5 shows Fig. 1 and Fig. 2 electro-motor with the line map of Y-connection；
Fig. 6 shows the line map that Fig. 3 electro-motor is connected with triangle；And
Fig. 7 shows Fig. 3 electro-motor with the line map of Y-connection.
Embodiment
Fig. 1 shows the electro-motor 100 for being exemplarily configured to inner rotor motor, and the electro-motor carries internal rotor 120 and external stator 150.Internal rotor 120 can preferably be rotatably supported on armature spindle 122 and coaxially be wrapped by external stator 150 Enclose.In ensuing explanation, internal rotor 120 is referred to as concept " rotor ", and external stator 150 is referred to as term " stator ".
Hereinafter it is noted that Fig. 1 electro-motor 100 is only schematically shown, because suitable electro-motor Basic 26S Proteasome Structure and Function fully by known in the art, thus taken herein for the brief and simple purpose of explanation The deep explanation to have disappeared to electro-motor 100.Furthermore, it is noted that electro-motor 100 is exemplarily only shown and not It is to be used to limit the present invention and show as inner rotor motor.In addition it is also noted that the figure of external stator is also only with exemplary Feature, and the present invention equally can for example use annular inner stator in or the primary components of line motor in.
It is preferred that burst and preferred unsegmented the stator 150 that designs exemplarily only have herein 12 radial directions to Interior orientation and in the stator tooth S of circumference equably arrangement spaced apart1-12.Stator 150 is posted to minimize herein Raw vortex and be fragmented, that is to say, that with it is multiple be respectively parallel to it is that drawing plane extends and self stacking, do not show Go out, the slight magnetized panel element of energy be formed.
Rotor 120 preferably has number of poles ten, and the number of poles is herein for example by stator tooth S1-12Number 12 reduce number Obtained after two.The pole P of rotor 1201-10It is preferred that equably spaced apart in circumference and be arranged in being oriented radially outward At armature spindle 122.In order to optimize or improve the pole P of corresponding magnetic flux and spoke-like arrangement1-10Preferably there is one respectively herein The cross-sectional geometry of rectangle.Pole P1-10Such as use tangentially respectively and be alternately opposite magnetized permanent magnet 124- 142 --- as shown with small arrow --- form.Ten permanent magnet 124-142 are preferably formed with Nd-Fe-B-alloy, The permanent magnet can produce strong magnetic flux under rational cost consumption.
12 stator tooth S1-12It is preferred that there is a trapezoidal stator slot respectively, or it is direct in circumference at each two Adjacent stator tooth S1-12Between preferably construct a stator slot respectively, it is general in order to preferably illustrate here in the stator slot Look at and illustrate only three stator tooth S8-10Between two stator slots 152,154, described two stator slots represent it is all remaining Same stator slot.All stator slots have a stator channel opening preferably similarly constructed respectively, in the stator slot Two stator channel openings 156,158 of the stator slot 152,154 are equally illustrate only in opening.Only two in A/F Two A/Fs 160,162 of stator channel opening 156,158 have a reference, described two A/Fs represent it is all its Remaining identical A/F, the A/F of the stator channel opening are preferably configured such size so that automation Winding is installed to stator tooth S by manufacture particular by the winding needle of railway guidance1-12On be feasible.
In the case of first embodiment of shown here of electro-motor 100,12 winding A1-4、B1-4And C1-4Each one be preferably placed in 12 stator tooth S altogether1-12It is each on, wherein, in the winding A1-4、B1-4、C1-4 With stator tooth S1-12Between preferably respectively install a unshowned insulation system made of plastic material, for mechanically Protective winding A1-4、B1-4、C1-4.Each two for example along clockwise direction in the stator winding A of circumference direct neighbor1,2、A3,4With And B1,2、B3,4And C1,2、C3,4A winding is illustratively formed respectively to 170,172,174,176,178,180.Two straight Opposed winding illustratively shows as a winding group to 170,172 and 174,176 and 178,180 respectively on the direction of footpath 190th, 192,194 or three phase X to be attached troops to a unit1、Y1、Z1In one.Three winding groups 190,192,194 or phase X1、Y1、Z1Energy Enough for example to be manipulated by three-phase alternating current, the three-phase alternating current is inverse by power electronic device not shown here, such as B6 Become device to produce, and the three-phase alternating current makes rotor 120 be in rotation（For this referring particularly to Fig. 4,5）.
Fig. 2 shows exemplary electro-motor 200, different from Fig. 1 electro-motor 100 in the electro-motor It is illustratively to be provided with least 12 in the outer of circumference mutual arrangement, separately fabricated stator segment 222-244 Stator 220 or stator.External stator 220 is vortexed preferred to suppressing and designed with being fragmented.
The each of the stator segment 222-244 for example as one man constructed in structure herein preferably has radially external annular regions Section shape base section 250-272, the base section respectively shape sealed and/or power transmission be bonded together in locking manner.It is standby Choosing or additionally, stator segment 222-244 base section 250-272 also can material be connected with each other in locking manner.It is fixed at 12 Subsegment 222-244 each place is advantageously constructed with stator tooth T be oriented radially inwards, approximate T-shape again1-12。
In 12 stator tooth T altogether1-12Each upper be preferably disposed with 12 winding A again1-4、B1-4And C1-4In One, wherein, in winding A1-4、B1-4And C1-4With stator tooth T1-12Between preferably respectively set a modeling by being electrically insulated Expect unshowned insulation system made of material.Each two stator winding A in circumference direct neighbor1,2、A3,4And B1,2、 B3,4And C1,2、C3,4It is preferred that six windings are constituted to 170,172,174,176,178,180 again.Each two in diametric(al) Opposed winding 170,172 and 174,176 and 178,180 are preferably expressed as again three winding groups 190,192,194 or Three phase X1、Y1、Z1In one.Three winding groups 190,192,194 or three phase X1、Y1、Z1Can be for example intersecting by three Stream electricity power supply, the three-phase alternating current are produced by power electronic device not shown here, such as B6 inverters or similar device, and And the three-phase alternating current makes rotor 120 be rotated relative to stator 220（For this referring to Fig. 4,5）.
12 stator tooth T1-12It is preferred that and there is a trapezoidal stator slot respectively, or at each two in circumference example Such as along clockwise direction stator tooth T of direct neighbor1-12Between preferably respectively construct a stator slot, in the stator slot this In in order to preferably illustrate general view illustrate only three stator tooth T8-10Between two stator slots 280,282, it is described two Stator slot represents remaining all same stator slot.All stator slots have a stator slot preferably as one man constructed respectively Opening, two of attached troops to a unit stator slot 280,282 are illustrate only for the purposes of diagram general view in the stator channel opening Stator channel opening 284,286.In A/F two A/Fs 288 of equally only two stator channel openings 284,286, 290 have reference, and described two A/Fs represent remaining all preferably consistent A/F, different from Fig. 1 electricity First embodiment of dynamic motor 100, the A/F of the stator channel opening be illustratively configured to it is obvious it is narrower simultaneously And it is preferably designed for the magnetic resistance of the stator channel opening 284,286 of reduction acting air gap in size and geometry herein, so as to the greatest extent Pass through 12 winding A under excitation that may be small1-4、B1-4And C1-4Magnetic flux as high as possible is produced in stator 220.Therefore Obtain the especially good weak magnetic characteristic of electro-motor 200.
With its armature spindle 122 and its ten pole P1-10Electro-motor 100 of the rotor 120 preferably in structure with Fig. 1 First embodiment as one man design, can be with reference to the corresponding explanation portion of figure 1 thus in order to avoid the repetition in content Point.
The reduction of the A/F of stator channel opening is herein feasible without a doubt based on the stator 220 being segmented completely , the stator allows in initially discrete existing stator tooth T1-12It is bonded into before intact stator 220 on process technology Simply to stator tooth T1-12Winding.Therefore in second embodiment of shown here of electro-motor 200, stator slot is opened The A/F of mouth can make a reservation for during the stator winding process of automation independently of in the technology of the winding needle of railway guidance Minimum diameter and selected in wide in range scope.
Fig. 3 shows exemplary electro-motor 300, the electro-motor preferably with unsegmented and burst it is outer fixed Son 320 or stator, what the electro-motor 100 of the stator corresponding diagram 1 was preferably only for example oriented radially inwards with 12 again And in the stator tooth V of circumference equably arrangement spaced apart1-12.As with the electro-motor 100 according to Fig. 1 and Fig. 2, 200 essential distinction, in the case of electro-motor 300, preferably only in 12 stator tooth V altogether1-12Every second it is fixed Winding D is set on sub- tooth1,2、E1,2And F1,2, wherein, only six winding D altogether herein1,2、E1,2And F1,2And stator tooth V1,3,5,7,9,11Between preferably equally set a unshowned insulation system made of the plastic material being electrically insulated, for Mechanically protective winding D1,2、E1,2And F1,2.Here, corresponding winding D opposed in diametric(al)1,2、E1,2And F1,2It is preferred that Wind respectively in reverse and constitute winding to 330,332,334 or three phase X2、Y2、Z2In one.
Three windings are to 330,332,334 or three phase X2、Y2、Z2For example it can be loaded again with three-phase alternating current, described three Cross streams electricity is produced by power electronic device not shown here, such as B6 inverters（For this referring to Fig. 6 and Fig. 7）.Winding D1,2、 E1,2And F1,2Number of windings herein preferably at least in the case of Fig. 1 and Fig. 2 electro-motor 100,200 it is double so Greatly, to produce the magnetic flux of same crosslinking inside stator 320.
12 stator tooth V1-12It is preferred that and there is a trapezoidal stator slot respectively, or it is straight in circumference at each two Meet adjacent stator tooth V1-12Between preferably construct a stator slot respectively, here in order to preferably illustrate in the stator slot General view and illustrate only three stator tooth V8-10Between two stator slots 350,352, described two stator slots represent it is all its Remaining same stator slot.All stator slots preferably have the stator channel opening that a difference preferably similarly constructs respectively, Two stator channel openings 354,356 of stator slot 350,352 are equally illustrate only in stator channel opening.Only two in A/F The A/F 358,360 of individual stator channel opening 354,356 has a reference, and the A/F represents that all remaining is same A/F, the A/F of the stator channel opening preferably so setting again so that particular by the winding of railway guidance Pin or similar device ensure that winding D1,2、E1,2And F1,2In stator tooth V1-12On simply can automatically manufacture as far as possible Property.
In addition, compared with Fig. 3 diagram, the not rolled stator tooth V being oriented radially inwards2,4,6,8,10,12If necessary The stator tooth first 370,372,374,376,378,380 of six annulus section shapes is configured to narrower in both sides respectively（It is not shown）, Especially to simplify the winding process of the automation of winding needle or similar device by railway guidance.In this case, pass through The stator tooth V of winding1,3,5,7,9,11--- not being equipped with reference to preferably illustrate general view --- stator tooth head In addition respectively it is designed in both sides wider（Do not draw equally）, can for example to accommodate bigger winding volume or more The winding wire of the number of turn of big figure.In both cases, the stator channel opening of the stator slot in the diagram shown in Fig. 3 is each Deviation can be produced between A/F.
In addition, the structural architecture of stator 320 --- the especially A/F of stator channel opening --- preferably follows Fig. 1 Electro-motor 100 stator, thus here in order to avoid the repetition in content can be with reference to the related explaination of figure 1.It is fixed Son 320 can correspond to the also piecewise design of electro-motor 200 by Fig. 2.With its armature spindle 122 and its ten pole P1-10Turn Sub 120 electro-motor 100 preferably equally with Fig. 1 in structure is identically formed.
Fig. 4 shows the line map connected by Fig. 1 with Fig. 2 electro-motor 100,200 with triangle.In stator tooth S1-12 And T1-12On winding A1-4、B1-4、C1-4Such as winding group 190,192,194 is formed, the winding group is connected to for producing Drive three phase X of the power electronic device 110 of the alternating current needed for electro-motor 100,2001、Y1、Z1On.Left side around Winding A in group group 1901,4And A2,3Accordingly as indicated in being laterally plotted in the point beside group echo of rectangle minute Ju You not identical winding direction.Same explanation is also applied for the winding B in the winding group 192 of centre1,4And B2,3And The winding C of the winding group 194 on right side1,4And C2,3。
Unlike the connection in Fig. 4, Fig. 5 winding group 190,192,194 is obtaining in the way of Y-connection It is electrically connected to each other in the case of star point ST.In addition, mark is consistent with the mark of the line map by Fig. 4.
Fig. 6 shows the line map connected by Fig. 3 electro-motor 300 with triangle.Electro-motor 300 in stator tooth V1,7On winding D1,2, stator tooth V3,9Winding E1,2And stator tooth V5,11Winding F1,2Illustratively press no star point Triangle connection mode be electrical contact with each other.In winding is to 330,332,334, the winding D that is attached troops to a unit1,2And E1,2And F1,2--- as shown with point --- wind respectively in reverse.
Unlike connection in figure 6, winding is to 330,332,334 or phase X2、Y2、Z2Such as the line map in Fig. 7 It is electrically connected to each other as indicated in the way of Y-connection in the case where obtaining common star point SP.In addition, mark Note is again consistent with the mark of the line map by Fig. 6.

Claims (12)

1. the electro-motor for driving the ABS system in motor vehicle（100、200、300）, the electro-motor is with forever encouraging The internal rotor of magnetic（120）And external stator（150、220、320）, it is characterised in that the external stator（150、220、320）With extremely Few 12 stator tooths（S1-12、T1-12、V1-12）, and the internal rotor（120）It is uniform in circumference with predetermined number of poles Ground pole spaced apart（P1-10）, wherein, the number of poles corresponds to the stator tooth（S1-12、T1-12、V1-12）Reduce two it is whole Number after several times, and it is described in circumference equably pole spaced apart（P1-10）Divide to concentrate corresponding magnetic flux Construct to other spoke-like.
2. according to the electro-motor described in claim 1, it is characterised in that each stator tooth（S1-12、T1-12）It is equipped with winding （A1-4、B1-4、C1-4）, wherein, each two along the external stator（150、220）Circumferencial direction direct neighbor winding（A1,2、 A3,4、B1,2、B3,4、C1,2、C3,4）Wound on the contrary and form winding pair（170、172、174、176、178、180）, and Each two opposed windings pair in diametric(al)（170、172、174、176、178、180）A winding group is formed respectively （190、192、194）Or phase（X1、Y1、Z1）.
3. according to the electro-motor described in claim 1, it is characterised in that every second stator tooth（V1,3,5,7,9,11）It is equipped Winding（D1,2、E1,2、F1,2）, wherein, each two opposed windings in diametric(al)（D1,2、E1,2、F1,2）Wound on the contrary And form winding pair（330、332、334）Or phase（X2、Y2、Z2）.
4. according to the electro-motor described in Claims 2 or 3, it is characterised in that the external stator（150、320）By each annular The plate of closure is formed.
5. according to the electro-motor described in claim 4, it is characterised in that at least 12 stator tooths（S1-12、V1-12）Point Ju You not a band stator channel opening（156、158、354、356）Trapezoidal stator slot（152、154、350、352）, it is described fixed The A/F of pilot trench opening（160、162、358、360）It is set so big respectively so that the winding（A1-4、B1-4、 C1-4、D1,2、E1,2、F1,2）Wound by the winding needle of railway guidance.
6. according to the electro-motor described in claim 2, it is characterised in that the external stator（220）It is fragmented and with extremely Few 12 separately fabricated stator segments in circumference mutual arrangement（222-244）, the stator segment carries annulus section shape Base section（250-272）, a stator tooth being oriented radially inwards is respectively arranged at the stator segment（T1-12）.
7. according to the electro-motor described in claim 6, it is characterised in that at least 12 stator tooths（T1-12）Structure respectively Into band stator channel opening（284、286）Trapezoidal stator slot（280、282）, the tangential A/F of the stator channel opening （288、290）It is configured to the stator channel opening of reduction acting air gap（284、286）Magnetic resistance.
8. according to the electro-motor any one of preceding claims, it is characterised in that the pole（P1-10）Cut respectively with edge To and be alternately opposite magnetized permanent magnet（124-142）Formed.
9. according to the electro-motor described in claim 8, it is characterised in that the permanent magnet（124-142）There is one respectively The cross-sectional geometry of substantial rectangular.
10. according to the electro-motor described in claim 8 or 9, it is characterised in that the permanent magnet（124-142）With neodymium-iron- Boron is formed.
11. according to the electro-motor described in claim 2, it is characterised in that at least three windings group（190、192、194） Or phase（X1、Y1、Z1）Connected in the way of triangle connection or Y-connection.
12. according to the electro-motor described in claim 3, it is characterised in that at least three winding pair（330、332、334） Or phase（X2、Y2、Z2）Connected in the way of triangle connection or Y-connection.
CN201710906556.0A 2016-09-30 2017-09-29 For driving the electro-motor of ABS system Pending CN107887988A (en)

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