WO2013131349A1 - 无刷直流电动机 - Google Patents
无刷直流电动机 Download PDFInfo
- Publication number
- WO2013131349A1 WO2013131349A1 PCT/CN2012/079102 CN2012079102W WO2013131349A1 WO 2013131349 A1 WO2013131349 A1 WO 2013131349A1 CN 2012079102 W CN2012079102 W CN 2012079102W WO 2013131349 A1 WO2013131349 A1 WO 2013131349A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rotor
- stator
- brushless
- tooth
- center
- Prior art date
Links
- 230000007704 transition Effects 0.000 claims description 24
- 238000004804 winding Methods 0.000 claims description 15
- 230000008859 change Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
- H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
- H02K29/06—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/08—Arrangements for controlling the speed or torque of a single motor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/03—Machines characterised by aspects of the air-gap between rotor and stator
Definitions
- the present invention relates to electrical control technology, and more particularly to a brushless DC motor. Background technique
- a brushless DC motor is a main type of motor, and its basic structure includes a stator having a pair of stator teeth, a rotor having a pair of magnetic poles, and a rotating shaft fixed at a center of the rotor, each of which is wound with a winding.
- the working principle of the brushless DC motor is to generate a magnetic field between the stator teeth and the rotor poles by applying a drive current that is commutated according to a set period to the windings, thereby generating an electromagnetic moment on the rotor to drive the rotor to rotate.
- the type of brushless DC motor can be divided into permanent magnet type or excitation type according to the magnetic generation method of the rotor magnetic pole. According to the phase number of the winding and the winding mode and the commutation period of the driving current, it can be divided into single phase and two. Phase or four-phase brushless DC motors have similar basic operating principles.
- the brushless DC motor has a phase angle of zero between the stator magnetomotive force and the rotor flux during a half commutation period. And 180. The electromagnetic torque at the time is zero. Therefore, these two positions are called “dead points”.
- the motor starting torque acting on the rotor is small, resulting in unsuccessful starting.
- the present invention provides a brushless DC motor to improve the starting performance of the motor at the "dead point" of the start.
- the present invention provides a brushless DC motor comprising a stator having a pair of stator teeth, a rotor having a pair of magnetic poles, and a rotating shaft fixed at a center of the rotor, each of the stator teeth winding, in the stator
- the intersection of the intersection of the addendum arc line of each stator tooth with the tooth axis and the center of the tooth top arc of the stator tooth has a magnitude greater than 0 degrees with the tooth axis of the stator tooth.
- an eccentric angle of less than 90 degrees
- the edge arc line of each pole is axially symmetric with respect to the pole axis; the stator is disposed within the rotor On the side, the edge arc lines of each magnetic pole are concave, and the radius is greater than or equal to the rotor rotation radius, or, when the stator is disposed outside the rotor, the edge arc lines of each magnetic pole are convex, and the radius is less than or equal to the rotor rotation. radius.
- the center of the arc of the edge of each of the magnetic poles is sequentially arranged in series to form a rotor circle surrounding the outer center of rotation of the rotor.
- the edge surface of each of the magnetic poles is an edge cylindrical surface composed of arcuate lines of respective edges, and the center axes of the cylindrical surfaces of the edge portions of the respective magnetic poles are parallel to each other.
- both end points of each stator tooth are axially symmetric with respect to the tooth axis, and both side edge lines and the tip circle of the stator teeth A transition arc is formed between the arcs.
- a transition arc that is away from a center side of the arc of the tooth top is a first transition arc line, adjacent to a center side of the arc of the tooth top circle
- the transition arc is a second transition arc line, and the radius of the first transition arc line is greater than the radius of the second transition arc line.
- the first transition arc line has a radius of 0.1 - 1.0 mm
- the second transition arc line has a radius of 0.1 - 0.6 mm.
- the eccentric angles of the stator teeth are equal in magnitude; and/or the radius of the arc of the addendum of each stator tooth is equal.
- the center of the arc of the addendum teeth of each of the stator teeth is successively arranged in sequence to form a stator circle surrounding the outer center of rotation of the rotor.
- the tooth tip circular surface of each of the stator teeth is a crest cylindrical surface composed of respective tooth top circular arc lines, and the center axes of the crest cylindrical surfaces of the respective stator teeth are parallel to each other.
- the radius of the rotor circle is larger than the radius of the stator circle.
- the brushless DC motor is a single-phase permanent magnetic brushless DC motor, and the number of the stator teeth and the rotor magnetic poles is an even number.
- the brushless DC motor as described above further includes: a rotor position sensor for detecting a current phase position of the rotor and outputting a rotor phase position signal;
- a controller coupled to the rotor position sensor, for generating a driving current signal that varies according to the sinusoidal wave according to the received rotor phase position signal to the winding to perform commutation.
- the brushless DC motor provided by the invention can design the tooth tip circular shape of the stator teeth to be an arc line which is eccentric with respect to the rotation center of the rotor, so that the brushless DC motor can eliminate the starting "dead point" and start smoothly.
- FIG. 1 is a schematic view showing a gradual air gap structure used in the prior art
- FIG. 2 is a schematic view showing a stepped air gap structure used in the prior art
- FIG. 3 is a schematic view showing the structure of an asymmetric tooth used in the prior art
- FIG. 5 is a schematic cross-sectional structural view of a stator in an embodiment of a brushless DC motor according to the present invention
- FIG. 6 is an enlarged view of a portion A in FIG. 5;
- FIG. 7 is a schematic cross-sectional structural view of a stator and a rotor in an embodiment of a brushless DC motor according to the present invention.
- Figure 8 is a cross-sectional structural view showing the stator of the outer rotor type brushless DC motor of the present invention.
- FIG. 9 is a cross-sectional structural view showing the rotor and the stator in the embodiment of the outer rotor type brushless DC motor of the present invention.
- DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 7 is a schematic cross-sectional structural view of a stator and a rotor in an embodiment of a brushless DC motor according to the present invention.
- the brushless DC motor of the present embodiment includes a stator having a pair of stator teeth and has a pair of magnetic poles.
- the rotor, and the rotating shaft fixed at the center of the rotor, each of which is wound around the winding, and the shape of the stator teeth is optimized and improved.
- the basic structure of the brushless DC motor will be briefly introduced.
- the invention can be applied to an inner rotor type motor in which a rotor is arranged inside a stator, and is also applicable.
- the inner rotor type motor in the present embodiment will be described as an example.
- the rotor 7 is disposed inside the stator 5, and the rotating shaft is fixed at the center of the rotor 7, for example, through the center hole of the rotor 7, to output electromagnetic torque by the rotation of the rotor 7.
- the edge of the outermost end of the rotor necessarily forms a circle, and the radius of the circle formed by the rotation of the rotor is recorded as the radius of rotation of the rotor, and the center of the circle is recorded as the center of rotation of the rotor.
- the stator 5 includes a stator outer circle and stator teeth 51.
- Each of the stator teeth 51 is composed of a root portion and a tooth top.
- the root portion extends from the outer circumference of the stator toward the center of rotation of the rotor.
- the two sides of the top of the tooth protrude from the sides of the tooth portion to form the notch of the tooth groove 52.
- the axis of symmetry of the root portion is The rotor rotation radius is collinear, and is recorded as the tooth axis of the stator tooth (the tooth axis is also the line between the center of the root portion and the center of rotation of the rotor).
- the inner rotor type brushless DC motor provided in this embodiment, as shown in FIGS. 5-7, includes a stator 5 having a pair of stator teeth 51, a rotor 7 having a pair of magnetic poles 71, and a rotating shaft fixed at the center of the rotor 7.
- Each of the stator teeth 51 is wound with a winding (not shown), and the stator 5 is disposed outside the rotor 7.
- each stator tooth 51 In each cross section of the stator 5, the intersection of the addendum circular arc line 51 1 of each stator tooth 51 with the tooth axis 20 of the stator tooth 51 and the center 512 of the addendum circular arc line 51 1 of the stator tooth 51 The wire has an eccentric angle ⁇ greater than 0 degrees and less than 90 degrees between the tooth axis 20 of the stator tooth 51.
- an even number of stator teeth 51 projecting toward the center may be fixedly disposed on the inner side surface of the stator 5, and the stator teeth 51 are evenly distributed on the inner side surface of the stator 5, and the number of the magnetic poles 71 on the stator teeth 51 and the rotor 7 are equal.
- the position is also - corresponding; wherein the magnetic pole 71 on the rotor 7 may be a permanent magnet or may be magnetic due to energization.
- the gap between the adjacent stator teeth 51 is a tooth groove 52, and the stator 5 is fixed, and the rotor 7 is rotated by a rotating shaft located at the center hole of the rotor 7.
- the eccentric angles ⁇ of the different pairs of stator teeth 51 may be the same or different, that is, the center 512 of the tooth top arc line 51 1 may be arranged in various manners, for example, the eccentric angle of the stator teeth 51 at the spaced positions may be ⁇ is equal, or is set in such a manner that the eccentric angles corresponding to all the stator teeth 51 are sequentially increased.
- the center 512 of the addendum circular arc line 51 1 does not coincide with the rotation center of the rotor, and does not fall on the straight line of the tooth axis; when the stator teeth and the magnetic poles The phase is 0. And 180.
- the eccentric angles ⁇ of the respective stator teeth 51 are equal in magnitude; and/or the radius of the addendum circular arc 511 of each of the stator teeth 51 is equal. From the perspective of any cross section of the stator teeth, when the eccentric angles ⁇ of the stator teeth 51 are equal, and the radii of the tooth top arc lines 511 corresponding to the stator teeth 51 are also equal, each cross section of the stator 5 In the middle, the center 512 of the addendum circular arc 511 of each of the stator teeth 51 is sequentially arranged in series to form a stator circle surrounding the outer center of the rotor.
- the magnitude of the eccentric angle ⁇ does not change, but the magnetic field vector between the stator tooth 51 and the rotor pole 71 changes; that is, during the constant rotation of the motor after the motor is started, the eccentric angle ⁇
- the position is constant, the magnetic field vector changes uniformly with the rotation of the rotor, and the resulting reluctance torque gradually becomes a smooth sinusoidal shape, thereby reducing the fluctuation of the electromagnetic torque output by the motor.
- the crest surface of each of the stator teeth 51 may be a crest cylindrical surface composed of the respective tooth top arc lines 51 1 , and the center axes of the crest cylindrical surfaces of the stator teeth 51 are parallel to each other.
- the specific application is not limited thereto.
- the cross-sections of the stator teeth 51 may be offset from each other by a certain angle and arranged in a spiral shape. This does not affect the working principle of the eccentric angle in the embodiment as long as the shape requirement of the stator tooth cross section is satisfied.
- the asymmetrically-turning stepped air gap structure required for starting is provided by deviating the center 512 corresponding to the addendum circular arc line 511 of the stator 5 from the rotor rotation center 10 to form an eccentric angle ⁇ .
- the asymmetric air gap is provided only by changing the shape of the crest cylindrical surface 51 1 of the stator tooth 51; please refer to FIG. 1, FIG. 2, FIG. 3 and FIG. 4 for details.
- the centers of the crests of different stator teeth have the same center but different radii Rl l, R12, R13, R14 and R15; in the stepped air gap structure, the top surface of the same stator teeth is formed.
- the brushless DC motor provided by the embodiment not only overcomes the problem of starting "dead point", but also solves the fluctuation of the normal running torque of the motor in the prior art. Large and noisy problems, effectively reducing vibration and noise during work.
- This embodiment can further optimize the structural shape of the rotor based on the first embodiment.
- the edge circular arc 712 of each magnetic pole 71 is axially symmetrical with respect to the magnetic pole axis; in the case where the stator 5 is disposed outside the rotor 7, the rotor is The edge arc line 712 of each of the magnetic poles 71 on the seventh surface is convex, and the radius of the edge circular arc line 712 is smaller than the rotor rotation radius, that is, the center 713 of the edge circular arc line 712 is located between the edge circular arc line 712 and the rotation center of the rotor. Or the radius of the edge arc line 712 may also be equal to the rotor rotation radius.
- the shape of the edge arc 712 of the magnetic pole 71 of each rotor need not be identical, but preferably, in each cross section of the rotor 7, the center 713 of the edge circular arc 712 of each magnetic pole 71 is sequentially arranged in series to form a circumference.
- the rotor circle is outside the center of rotation of the rotor 10.
- each of the magnetic poles 71 is preferably an edge cylindrical surface composed of arcuate lines of the respective edges, and the central axes of the cylindrical faces of the edge portions of the respective magnetic poles 71 are parallel to each other.
- the magnetic pole 71 extends in a spiral curve in a direction perpendicular to the cross section, or the surface of the magnetic pole 71 has a tapered surface or the like.
- the radius of the rotor circle is preferably larger than the radius of the stator circle, or substantially satisfies the law; that is, the center of all the tooth top arc lines 51 1 from the perspective of one cross section
- the 512 is arranged in a circle centered on the center of rotation of the rotor 10, and the center 713 of the edge circular arc 712 of all the magnetic poles 71 is also arranged in a circle centered on the center of rotation of the rotor 10, and the center 713 of the edge circular arc 712 of the magnetic pole 71 It surrounds the outer side of the center 512 of the addendum circular line 511.
- the cylindrical surface of the pole surface and the top surface of the stator can be easily fabricated and processed, which is advantageous for cost saving.
- the shape of the edge surface of the magnetic pole on the rotor is designed to be an arc of an edge which is symmetrical with respect to the magnetic pole axis and whose center is not at the center of rotation of the rotor, so that the air gap magnetic field formed by the rotor and the stator in this embodiment can be changed. It is smoother, so that the fluctuation of the output electromagnetic torque is more effectively reduced, and the vibration during the operation of the motor is further reduced.
- Embodiment 3 5 is a schematic cross-sectional view of a stator of an embodiment of a brushless DC motor according to the present invention.
- This embodiment can be based on any of the above embodiments, and further, in each cross section of the stator 5, each stator tooth 51 The two end points are axially symmetric with respect to the tooth axis 20, and a transition arc is formed between the side edge lines of the stator teeth 51 and the addendum circular line 511.
- the two end points of the stator teeth 51 are the points farthest from the tooth axis 20 on both sides of the tooth top; the tooth side surfaces of the tooth top circular surface are smoothly transitioned through the arc surface, respectively, from the cross section angle of the stator Look, these two arc faces are the above-mentioned tooth top arc line 511.
- the design of the circular arc surface makes the variation of the air gap magnetic field more uniform.
- the transition arc that is away from the center 512 of the addendum arc line 51 1 is the first transition arc line 513, and the transition arc adjacent to the center side of the tooth top arc line
- the second transition arc line 514 has a radius larger than the radius of the second transition arc line 514.
- the radius of the first transitional circular arc 513 preferably ranges from 0.1 to 1.0 mm
- the radius of the second transitional circular arc 514 preferably ranges from 0.1 to 0.6 mm.
- the design of the transitional arc surface in this embodiment can cooperate with the rotation of the rotor, so that the air gap magnetic field change between the stator and the rotor is smoother and evener, so that the variation law of the air gap magnetic field is closer to the sinusoidal waveform, and further Reduce the purpose of torque ripple and vibration noise.
- FIG. 8 is a schematic cross-sectional structural view of a stator in an embodiment of an outer rotor type brushless DC motor according to the present invention
- FIG. 9 is a cross-sectional structural view showing a rotor and a stator in an embodiment of an outer rotor type brushless DC motor according to the present invention.
- the present embodiment provides an outer rotor type brushless DC motor, which is different from the first embodiment in that the rotor 7 is disposed on the outer side of the stator 5, so that the rotor 7 can be in a ring shape.
- the stator 5 is located at the center of the rotor 7.
- the stator 5 is fixed on the outer side of the stator 5 with an even number of stator teeth 51 extending radially outward.
- the magnetic pole 71 of the rotor 7 is disposed on the inner ring side of the rotor 7, and the position is also compatible with the stator.
- the tooth 51 - correspondingly, the rotating shaft fixed at the center hole of the rotor 7 can drive the rotor 7 to rotate; at this time, from the cross-sectional angle of the rotor 7, the edge circular arc 712 of each magnetic pole 71 is concave and the radius is larger than or Equal to the rotor rotation radius; and similar to the first embodiment, in each cross section of the stator 5, the intersection of the addendum circular arc line 51 1 of each stator tooth 51 and the tooth axis 20 of the stator tooth 51 and the stator tooth 51 Circle of the tooth top arc line 511
- the line of the core 512 has an eccentric angle ⁇ greater than 0 degrees and less than 90 degrees between the tooth axes 20 of the stator teeth 51.
- the structure of the stator 5 and the rotor 7 and the structural relationship between the two are similar to those of the first embodiment, and will not be described herein.
- the eccentric angle ⁇ of the stator teeth 51 and the radius of the tooth top arc line 51 1 may be equal, and the center 512 of the tooth top arc line corresponding to each stator tooth 51 may be sequentially arranged in sequence to form a surrounding The stator circle outside the center of rotation of the rotor.
- the structure of the rotor can be further optimized by the method of the second embodiment. That is, in each cross section of the rotor 7, the edge circular arc 712 of each magnetic pole 71 may be axially symmetrically disposed with respect to the magnetic pole axis, and for the case where the rotor 7 is disposed outside the stator 5, the magnetic poles on the rotor 7
- the edge circular arc 712 of the 71 is concave, and the radius of the edge circular arc 712 is smaller than the rotor rotation radius; the shape of the edge circular arc 712 of each rotor magnetic pole 71 may be the same or different, and the edge circular arc 712 of each magnetic pole 71
- the center 713 of the circle may be sequentially arranged to form a rotor circle surrounding the outer center of rotation 10 of the rotor; optimally, when the rotor circle and the stator circle are respectively formed, the radius of the rotor circle may be larger than the radius of the stator circle (as shown in Fig. 9
- the outer rotor type brushless DC motor provided in this embodiment can also improve the starting performance of the motor near the "dead point" of starting, and reduce the torque fluctuation during normal operation of the motor, thereby achieving the purpose of reducing vibration and noise.
- the brushless DC motor provided by the embodiment of the invention can be applied to a single-phase, two-phase or four-phase brushless DC motor, and the working principle is similar, and the starting performance can be improved.
- the embodiment of the present invention is preferably applied to a single-phase permanent magnet brushless DC motor because the single-phase winding can effectively reduce the production cost and can also achieve higher efficiency.
- the number of stator teeth 51 of the brushless DC motor may be an even number, for example, four, six or eight.
- the number of magnetic poles on the rotor may also be an even number, for example, four or six or the same.
- an inner rotor type or an outer rotor type may be used, wherein the structure of the stator, the structure of the rotor, and the structural relationship between the rotor and the stator may adopt the specific embodiment of the first embodiment or the second embodiment, and details are not described herein again. .
- the single-phase permanent magnet brushless DC motor provided in this embodiment can overcome the startup "dead point" of the single-phase permanent magnet brushless DC motor in the prior art, and can smoothly start, and at the same time, an air gap which changes sinusoidally can be obtained.
- the magnetic field is used to obtain a torque that is uniformly changed, and the torque ripple is effectively reduced.
- the single-phase brushless DC motor in any of the above embodiments may further include: a rotor position sensor for detecting a current phase position of the rotor and outputting a rotor phase position Signal
- the controller is coupled to the rotor position sensor for generating a drive current signal that varies sinusoidally according to the received rotor phase position signal to the winding for commutation.
- the controller and the windings may be respectively coupled to the drive circuit to input a drive current signal to the windings on the stator, and the direction of the drive current is changed by the controller to perform the commutation.
- the brushless DC motor can be driven by a sinusoidal change current signal, and the back electromotive force of the winding is changed by a sinusoidal law by the phase compensation function of the controller, so that the air gap magnetic field changes to a more pure sine wave, further Reduced torque ripple and better noise reduction.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Brushless Motors (AREA)
Abstract
Description
Claims
Priority Applications (13)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014502984A JP2014510512A (ja) | 2012-03-05 | 2012-07-24 | ブラシレス直流モータ |
CA2806050A CA2806050A1 (en) | 2012-03-05 | 2012-07-24 | Brushless dc motor |
SG2013014121A SG193223A1 (en) | 2012-03-05 | 2012-07-24 | Brushless dc motor |
MX2013004717A MX2013004717A (es) | 2012-03-05 | 2012-07-24 | Motor dc sin escobillas. |
AU2012372145A AU2012372145B2 (en) | 2012-03-05 | 2012-07-24 | Brushless DC motor |
KR1020137006202A KR101447264B1 (ko) | 2012-03-05 | 2012-07-24 | 브러시리스 직류 모터 |
AU2013200655A AU2013200655A1 (en) | 2012-03-05 | 2012-07-24 | Refer to Application No. 2012372145 |
EP20120826593 EP2660959A4 (en) | 2012-03-05 | 2012-07-24 | DIRECT CURRENT MOTOR WITHOUT BRUSH |
EA201390564A EA201390564A1 (ru) | 2012-03-05 | 2012-07-24 | Бесщеточный электродвигатель постоянного тока |
US13/747,379 US20130229085A1 (en) | 2012-03-05 | 2013-01-22 | Brushless dc motor |
ZA2013/01119A ZA201301119B (en) | 2012-03-05 | 2013-02-12 | Brushless dc motor |
EG2013050871A EG27099A (en) | 2012-03-05 | 2013-05-22 | Brushless dc motor |
US14/504,335 US9800123B2 (en) | 2012-03-05 | 2014-10-01 | Method for modifying stator tooth top arc of brushless DC motor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201210055354 CN102629811B (zh) | 2012-03-05 | 2012-03-05 | 无刷直流电动机 |
CN201210055354.7 | 2012-03-05 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/747,379 Continuation US20130229085A1 (en) | 2012-03-05 | 2013-01-22 | Brushless dc motor |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013131349A1 true WO2013131349A1 (zh) | 2013-09-12 |
Family
ID=46587995
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2012/079102 WO2013131349A1 (zh) | 2012-03-05 | 2012-07-24 | 无刷直流电动机 |
Country Status (12)
Country | Link |
---|---|
EP (1) | EP2660959A4 (zh) |
JP (1) | JP2014510512A (zh) |
KR (1) | KR101447264B1 (zh) |
CN (1) | CN102629811B (zh) |
AR (1) | AR090236A1 (zh) |
AU (2) | AU2013200655A1 (zh) |
EA (1) | EA201390564A1 (zh) |
EG (1) | EG27099A (zh) |
MX (1) | MX2013004717A (zh) |
SG (1) | SG193223A1 (zh) |
WO (1) | WO2013131349A1 (zh) |
ZA (1) | ZA201301119B (zh) |
Cited By (1)
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CN111293799A (zh) * | 2020-02-27 | 2020-06-16 | 南京奥特佳新能源科技有限公司 | 一种反电动势正弦波形优化的永磁电机及其定子 |
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US9800123B2 (en) | 2012-03-05 | 2017-10-24 | Zhejiang Yilida Ventilator Co., Ltd. | Method for modifying stator tooth top arc of brushless DC motor |
CN102882292A (zh) * | 2012-09-27 | 2013-01-16 | 宁波狮球通风机电有限公司 | 定子冲片 |
CN102938626B (zh) * | 2012-10-16 | 2015-03-25 | 江门市地尔汉宇电器股份有限公司 | 一种微型单相永磁同步电动机 |
CN102931799A (zh) * | 2012-12-04 | 2013-02-13 | 周撼宇 | 一种单相无刷直流电动机 |
CN103259351A (zh) * | 2013-05-13 | 2013-08-21 | 广东威灵电机制造有限公司 | 永磁电机 |
CN106208589A (zh) * | 2016-07-26 | 2016-12-07 | 南通市润泽磁业有限公司 | 用于铝木电锯的无刷电机 |
CN106230145A (zh) * | 2016-07-26 | 2016-12-14 | 南通市润泽磁业有限公司 | 铝木电锯 |
CN106253531A (zh) * | 2016-08-15 | 2016-12-21 | 南通市润泽磁业有限公司 | 铝木电锯用无刷电机 |
JP2021502795A (ja) * | 2017-11-13 | 2021-01-28 | ピアーブルグ パンプ テクノロジー ゲゼルシャフト ミット ベシュレンクテル ハフツングPierburg Pump Technology GmbH | 単相電子整流モータ |
CN108599406B (zh) * | 2018-01-26 | 2024-04-09 | 捷和电机制品(深圳)有限公司 | 单相无刷直流电机 |
CN109713814B (zh) * | 2019-02-19 | 2020-05-19 | 珠海格力电器股份有限公司 | 电机结构及电机 |
CN112583155A (zh) * | 2020-11-03 | 2021-03-30 | 超音速智能技术(杭州)有限公司 | 一种单相无刷直流电机 |
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CN116979759B (zh) * | 2023-09-14 | 2024-04-23 | 常州大牛汽车技术有限公司 | 一种具有气隙可调的定子转子组件低损耗电机 |
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- 2012-07-24 MX MX2013004717A patent/MX2013004717A/es not_active Application Discontinuation
- 2012-07-24 EA EA201390564A patent/EA201390564A1/ru unknown
- 2012-07-24 EP EP20120826593 patent/EP2660959A4/en not_active Withdrawn
- 2012-07-24 AU AU2013200655A patent/AU2013200655A1/en active Pending
- 2012-07-24 WO PCT/CN2012/079102 patent/WO2013131349A1/zh active Application Filing
- 2012-07-24 KR KR1020137006202A patent/KR101447264B1/ko active IP Right Grant
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EP2660959A1 (en) | 2013-11-06 |
AU2012372145A1 (en) | 2013-09-26 |
ZA201301119B (en) | 2014-08-27 |
JP2014510512A (ja) | 2014-04-24 |
AR090236A1 (es) | 2014-10-29 |
EG27099A (en) | 2015-06-08 |
CN102629811B (zh) | 2013-01-23 |
MX2013004717A (es) | 2014-03-06 |
AU2012372145B2 (en) | 2015-04-09 |
CN102629811A (zh) | 2012-08-08 |
KR20130112032A (ko) | 2013-10-11 |
EP2660959A4 (en) | 2014-05-07 |
AU2013200655A1 (en) | 2013-09-19 |
SG193223A1 (en) | 2013-10-30 |
EA201390564A1 (ru) | 2013-12-30 |
KR101447264B1 (ko) | 2014-10-07 |
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