WO2019174315A1 - Structure de rotor, moteur à réluctance synchrone assisté par aimant permanent et voiture électrique - Google Patents

Structure de rotor, moteur à réluctance synchrone assisté par aimant permanent et voiture électrique Download PDF

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Publication number
WO2019174315A1
WO2019174315A1 PCT/CN2018/119791 CN2018119791W WO2019174315A1 WO 2019174315 A1 WO2019174315 A1 WO 2019174315A1 CN 2018119791 W CN2018119791 W CN 2018119791W WO 2019174315 A1 WO2019174315 A1 WO 2019174315A1
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WIPO (PCT)
Prior art keywords
groove
magnetic steel
rotor
rotor body
folding
Prior art date
Application number
PCT/CN2018/119791
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English (en)
Chinese (zh)
Inventor
廖克亮
胡余生
陈彬
卢素华
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珠海格力电器股份有限公司
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Publication of WO2019174315A1 publication Critical patent/WO2019174315A1/fr

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    • 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
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility

Definitions

  • the present invention relates to the field of electrical equipment, and in particular to a rotor structure, a permanent magnet assisted synchronous reluctance motor, and an electric vehicle.
  • the torque output from the motor is not a constant value, but is a regular sinusoidal change as the rotor rotates within the stator.
  • the ratio of the peak-to-peak value of the torque output waveform to the average value is called torque ripple.
  • the permanent magnet reluctance motor is a new type of motor. It has been widely used in modern production and life because it can make full use of permanent magnet torque and reluctance torque.
  • the risk of demagnetization is a major problem that restricts the application of permanent magnet motors.
  • the motor needs to have stronger anti-demagnetization capability.
  • the motor of the prior art has a problem of high demagnetization strength and low motor efficiency.
  • a primary object of the present invention is to provide a rotor structure, a permanent magnet assisted synchronous reluctance motor, and an electric vehicle to solve the problem of low efficiency of the prior art motor.
  • a rotor structure comprising: a rotor body having a magnetic steel groove group formed on the rotor body, the magnetic steel groove group including an inner magnetic steel groove, and the rotor body further open a first folding groove and a second folding groove, wherein the first folding groove communicates with the first end of the inner magnetic steel groove, the geometric center line of the longitudinal direction of the first folding groove and the first end of the inner magnetic steel groove
  • the geometric center line in the longitudinal direction has a first angle
  • the second hinge groove communicates with the second end of the inner magnetic steel groove
  • the geometric center line of the longitudinal direction of the second folding groove and the second end of the inner magnetic steel groove The geometric centerline in the length direction has a second angle, wherein the first angle is not equal to the second angle.
  • first end of the inner magnetic steel groove extends outward in the radial direction of the rotor body
  • second end of the inner magnetic steel groove extends outward in the radial direction of the rotor body
  • inner magnetic steel groove a central portion is convexly disposed toward a center of the rotor body
  • first end of the first folded groove is in communication with the first end of the inner magnetic steel groove
  • the second end of the first folded groove extends toward the outer edge of the rotor body and Gradually away from the straight axis of the rotor body.
  • first end of the second folding groove communicates with the second end of the inner magnetic steel groove, and the second end of the second folding groove extends toward the outer edge of the rotor body and is gradually disposed away from the straight axis.
  • the inner magnetic steel grooves are symmetrically disposed about the straight axis of the rotor body.
  • the rotor body is formed by laminating a plurality of rotor punches having a front surface and a reverse surface, and a front surface of one of the adjacent two rotor punching sheets is disposed opposite to a reverse surface of the other rotor punching sheet.
  • the magnetic steel trough group further comprises: an outer magnetic steel trough, the outer magnetic steel trough is disposed adjacent to the inner magnetic steel trough, and a magnetic conductive channel is formed between the outer magnetic steel trough and the inner magnetic steel trough, A first end of the outer magnetic steel groove extends outwardly in a radial direction of the rotor body, and a second end of the outer magnetic steel groove extends outward in a radial direction of the rotor body.
  • outer magnetic steel groove is generally V-shaped, curved or U-shaped.
  • the central portion of the outer magnetic steel groove is convexly disposed toward the center of the rotor body.
  • a third folding groove and a fourth folding groove are further formed on the rotor body, the third folding groove is in communication with the first end of the outer magnetic steel groove, and the second end of the fourth folding groove and the outer magnetic steel groove Connected.
  • the geometric center line of the longitudinal direction of the third folding groove has a third angle with the geometric center line of the longitudinal direction of the first end of the outer magnetic steel groove, and the geometric center line and the outer length of the fourth folding groove
  • the geometric center line of the second end of the layer magnetic steel groove has a fourth angle, wherein the third angle is not equal to the fourth angle.
  • first end of the third folded groove is in communication with the first end of the outer magnetic steel groove, and the second end of the third folded groove is extended toward the outer edge of the rotor body and is gradually disposed away from the straight axis of the rotor body, fourth The first end of the folded groove communicates with the second end of the outer magnetic steel groove, and the second end of the fourth folded groove extends toward the outer edge of the rotor body and is gradually disposed away from the straight axis.
  • ⁇ 1 is a central angle formed between a midpoint of a sidewall of the second end of the third folded groove adjacent to the outer edge of the rotor body and a line between the center of the rotor body and the straight axis
  • ⁇ 2 is the first hinge groove a central angle formed between a midpoint of the sidewall of the second end adjacent to the outer edge of the rotor body and a line between the center of the rotor body and the straight axis
  • p is the number of pole pairs of the rotor structure
  • N S is the number of teeth of the stator teeth
  • N C is the number of layers of the inner magnetic steel trough and the outer magnetic steel trough.
  • ⁇ 3 is the central angle formed between the midpoint of the sidewall of the second end of the fourth folded groove near the outer edge of the rotor body and the line at the center of the rotor body and the straight axis
  • ⁇ 4 is the second hinge groove a central angle formed between a midpoint of the sidewall of the second end adjacent to the outer edge of the rotor body and a line between the center of the rotor body and the straight axis
  • p is the number of pole pairs of the rotor structure
  • N S is the number of teeth of the stator teeth
  • N C is the number of layers of the inner magnetic steel trough and the outer magnetic steel trough.
  • ⁇ 1 is a central angle formed between a midpoint of a side wall of the second end of the third folded groove near the outer edge of the rotor body and a line connecting the center of the rotor body and the straight axis
  • ⁇ 3 is a fourth hinge groove a central angle formed between a midpoint of the sidewall of the second end adjacent to the outer edge of the rotor body and a line between the center of the rotor body and the straight axis
  • p is the number of pole pairs of the rotor structure
  • N S is the number of teeth of the stator teeth .
  • At least one of the first folding groove, the second folding groove, the third folding groove and the fourth folding groove has a length L, and a radius of the rotor body is Dr, wherein L/Dr ⁇ 0.2.
  • first folding groove, the second folding groove, the third folding groove and the fourth folding groove have the same width, or the width of the first folding groove and the second folding groove, the third folding groove and the fourth folding groove At least one of the widths is different.
  • a permanent magnet assisted synchronous reluctance motor comprising a rotor structure which is the rotor structure described above.
  • an electric vehicle comprising a rotor structure which is the rotor structure described above.
  • the first angle is set to be unequal to the second angle, and the magnetic circuit of the rotor structure can be effectively optimized, thereby increasing the torque of the rotor structure and reducing the rotational artery moment, thereby improving
  • the anti-magnetic retraction capability of the motor improves the efficiency of the motor.
  • Figure 1 is a schematic view showing the structure of a first embodiment of a rotor structure according to the present invention
  • Figure 2 is a schematic view showing the structure of a second embodiment of a rotor structure according to the present invention.
  • Figure 3 is a schematic view showing the structure of a third embodiment of a rotor structure according to the present invention.
  • Figure 4 is a schematic view showing the structure of a fourth embodiment of a rotor structure according to the present invention.
  • Figure 5 is a schematic view showing the structure of a fifth embodiment of a rotor structure according to the present invention.
  • Figure 6 is a schematic view showing the average torque of a rotor according to the present invention.
  • Figure 7 is a view showing the relationship between the anti-demagnetization ability and the off-angle of the rotor according to the present invention.
  • Figure 8 is a diagram showing torque waveforms generated by a forward stacked rotor die according to the present invention.
  • Figure 9 is a diagram showing torque waveforms generated by reverse stacked rotor blades in accordance with the present invention.
  • Fig. 10 is a view showing torque waveforms generated by a rotor chip stacked in forward and reverse directions according to the present invention.
  • stator 31, stator teeth.
  • spatially relative terms such as “above”, “above”, “on top”, “above”, etc., may be used herein to describe as in the drawings.
  • the exemplary term “above” can include both “over” and "under”.
  • the device can also be positioned in other different ways (rotated 90 degrees or at other orientations) and the corresponding description of the space used herein is interpreted accordingly.
  • a rotor structure is provided.
  • the rotor body 10 is provided with a magnetic steel groove group, and the magnetic steel groove group includes an inner magnetic steel groove 11.
  • the first main groove 21 and the second folding groove 22 are further formed on the rotor body 10, and the first folding groove 21 is in communication with the first end of the inner magnetic steel groove 11, the geometric center line of the longitudinal direction of the first folding groove 21 has a first angle with the geometric center line of the longitudinal direction of the first end of the inner magnetic steel groove 11.
  • the second folding groove 22 communicates with the second end of the inner magnetic steel groove 11, and the geometric center line of the longitudinal direction of the second folding groove 22 and the geometric center line of the second end of the inner magnetic steel groove 11 have a second angle, wherein the first angle is not equal to the second angle.
  • the first angle is set to be unequal to the second angle, and the magnetic circuit of the rotor structure can be effectively optimized, thereby increasing the torque of the rotor structure and reducing the rotational artery moment, thereby improving the effect.
  • the anti-magnetic retraction capability of the permanent magnet auxiliary synchronous reluctance motor (hereinafter referred to as the motor) improves the efficiency of the motor.
  • the first end of the inner magnetic steel groove 11 extends outward in the radial direction of the rotor body 10.
  • the second end of the inner layer magnetic steel groove 11 extends outward in the radial direction of the rotor body 10.
  • the central portion of the inner magnetic steel groove 11 is convexly disposed toward the center of the rotor body 10.
  • the first end of the first folded groove 21 communicates with the first end of the inner layer magnetic steel groove 11.
  • the second end of the first hinge groove 21 extends toward the outer edge of the rotor body 10 and is gradually disposed away from the straight axis d (shown in FIG. 2) of the rotor body 10.
  • the first end of the second folded groove 22 communicates with the second end of the inner layer magnetic steel groove 11, and the second end of the second folded groove 22 extends toward the outer edge of the rotor body 10 and is gradually disposed away from the straight axis.
  • Such a configuration can gradually increase the distance between the first and second folding grooves 21 and 22 and the straight shaft, and can effectively increase the guiding effect of the first and second folding grooves 21 and 22 on the magnetic field.
  • the inner layer magnetic steel groove 11 is symmetrically disposed with respect to the straight axis of the rotor body 10. This setting can effectively increase the inductance on the straight axis.
  • the rotor body 10 is formed by laminating a plurality of rotor punches having a front surface and a reverse surface, and the front surface of one of the adjacent rotor blades is punched with the other rotor.
  • the opposite side of the piece is set oppositely.
  • the rotor of the motor is formed by stacking the rotor blades in a positive and negative order. Due to the asymmetry of the rotor punching structure, the torque waveform period and amplitude generated by the motor under each pole are also asymmetrical.
  • the torque waveform generated by the forward stacked rotor blades is as shown by f in Fig.
  • the torque waveform generated by the reversely stacked rotor blades is as shown by f1 in Fig. 9.
  • the torque waveform obtained by the rotor made by reversing the rotor blanks should be the superposition of the waveforms of the two rotor punches, thereby weakening the cogging torque.
  • the torque waveform of the rotor chip after the reverse stack is superimposed as shown by f2 in FIG.
  • the rotor of the motor has a slotted shape, and the slot has a top turning structure and is asymmetrical left and right.
  • the torque ripple is weakened by the positive and negative stacking of the rotor blades.
  • the shape of the folded groove is not limited to the shape in the preferred embodiment, and is not limited to the equal-width structure, and a rectangular shape may be employed, and the two-arm magnetic steel groove and the bottom magnetic steel groove may have an arc structure.
  • the magnetic steel trough group also includes an outer magnetic steel trough 12.
  • the outer magnetic steel groove 12 is disposed adjacent to the inner magnetic steel groove 11.
  • a magnetic conductive path is formed between the outer magnetic steel groove 12 and the inner magnetic steel groove 11.
  • the first end of the outer magnetic steel groove 12 extends outward in the radial direction of the rotor body 10.
  • the second end of the outer magnetic steel groove 12 extends outward in the radial direction of the rotor body 10. This arrangement facilitates the magnetic conduction function of the magnetic conductive channel.
  • the outer magnetic steel groove 12 is generally V-shaped, curved or U-shaped.
  • the central portion of the outer magnetic steel groove 12 is convexly disposed toward the center of the rotor body 10. This arrangement can effectively increase the magnetic permeability of the rotor structure, which in turn increases the torque of the rotor structure.
  • a third folding groove 23 and a fourth folding groove 24 are further defined in the rotor body 10.
  • the third folding groove 23 communicates with the first end of the outer magnetic steel groove 12, and the fourth folding groove 24 and the outer magnetic steel groove 12 The second ends are connected. This arrangement can effectively increase the magnetic permeability of the rotor structure, which in turn increases the torque of the rotor structure.
  • the geometric center line of the third folded groove 23 in the longitudinal direction has a third angle with the geometric center line of the longitudinal direction of the first end of the outer magnetic steel groove 12.
  • the geometric center line of the longitudinal direction of the fourth folding groove 24 has a fourth angle with the geometric center line of the longitudinal direction of the second end of the outer magnetic steel groove 12, wherein the third angle is not equal to the fourth angle.
  • first end of the third folded groove 23 communicates with the first end of the outer magnetic steel groove 12.
  • the second end of the third fold groove 23 extends toward the outer edge of the rotor body 10 and is gradually disposed away from the straight axis of the rotor body 10.
  • the first end of the fourth folded groove 24 communicates with the second end of the outer magnetic steel groove 12.
  • the second end of the fourth folded groove 24 extends toward the outer edge of the rotor body 10 and is gradually disposed away from the straight axis.
  • ⁇ 1 is the central angle formed between the midpoint of the side wall of the second end of the third folded groove 23 near the outer edge of the rotor body 10 and the line between the center of the rotor body 10 and the straight axis
  • ⁇ 2 is the first a central angle formed between a midpoint of the second end of the folded groove 21 adjacent to the outer edge of the rotor body 10 and a line between the center of the rotor body 10 and the straight axis
  • p is the number of pole pairs of the rotor structure
  • N S is the number of teeth of the stator teeth
  • N C is the number of layers of the inner magnetic steel groove 11 and the outer magnetic steel groove 12.
  • the magnetic field is formed by the stator teeth 31 of the stator 30 through the air gap and then through the rotor magnetic flux path, and the magnetic flux is maximized at the relative position of the magnetic flux path and the stator tooth portion, and the generated torque is also maximum.
  • the width and position of the magnetic flux path between each layer of magnetic steel are changed, and the position and size of the torque peak and the valley value are changed accordingly to change the torque waveform.
  • the demagnetizing magnetic field can be guided, so that the demagnetizing magnetic field does not act on the permanent magnet, and the influence of the demagnetizing magnetic field on the permanent magnet is reduced, thereby achieving the purpose of improving the anti-demagnetization capability.
  • ⁇ 3 is a central angle formed between a midpoint of the sidewall of the second end of the fourth folded groove 24 near the outer edge of the rotor body 10 and a line connecting the center of the rotor body 10 and the straight axis;
  • ⁇ 4 is the second a central angle formed between a midpoint of the second end of the folded groove 22 adjacent to the outer edge of the rotor body 10 and a line between the center of the rotor body 10 and the straight axis,
  • p is the number of pole pairs of the rotor structure,
  • N S is the number of teeth of the stator teeth, and
  • N C is the number of layers of the inner magnetic steel groove 11 and the outer magnetic steel groove 12.
  • no permanent magnets are disposed in the first folding groove 21, the second folding groove 22, the third folding groove 23, and the fourth folding groove 24.
  • At least one of the first folding groove 21, the second folding groove 22, the third folding groove 23, and the fourth folding groove 24 has a length L, and the radius of the rotor body 10 is Dr, wherein L/Dr ⁇ 0.2. This arrangement facilitates better routing of the flux lines.
  • the rotor punching groove is asymmetrically left and right, and the top magnetic steel groove of each layer is uniformly offset to the left by about half a pitch, that is, the following relationship is satisfied:
  • ⁇ 1 is the central angle formed between the midpoint of the side wall of the second end of the third folded groove 23 near the outer edge of the rotor body 10 and the line between the center of the rotor body 10 and the straight axis
  • ⁇ 3 is the fourth a central angle formed between a midpoint of the second end of the folded groove 24 adjacent to the outer edge of the rotor body 10 and a line between the center of the rotor body 10 and the straight axis
  • p is the pole number of the rotor structure
  • N S is the number of teeth of the stator teeth.
  • the widths of the first folding groove 21, the second folding groove 22, the third folding groove 23, and the fourth folding groove 24 are all the same, or the width of the first folding groove 21 is different from the second folding groove 22 and the third folding groove
  • the width of at least one of the groove 23 and the fourth folding groove 24 is different.
  • the rotor structure in the above embodiment can also be used in the field of electrical equipment technology, that is, in accordance with another aspect of the present invention, an electric machine is provided.
  • the motor includes a rotor structure which is the rotor structure in the above embodiment.
  • the rotor structure in the above embodiment can also be used in the field of electric vehicle technology, that is, according to another aspect of the present invention, an electric vehicle is provided.
  • the electric vehicle includes a rotor structure which is the rotor structure in the above embodiment.
  • the motor has a rotor and a stator, and the number of poles is 2P.
  • the stator has a cogging structure, and Ns stator teeth are evenly distributed under each pole.
  • the rotor of the motor is formed by stacking rotor blades.
  • Each rotor punching plate is provided with a plurality of magnetic steel grooves, and the magnetic steel grooves are used for placing permanent magnets, and the number of layers is Nc.
  • the shape of the magnetic steel groove is approximately U-shaped, and can be divided into three parts: a top folding groove, a two-arm magnetic steel groove and a bottom magnetic steel groove.
  • the top magnetic steel groove is designed to have a turning shape, the angle between the folding groove and the center line of the rotor, and the angle between the two-arm magnetic steel groove and the center line of the rotor are different.
  • the angle between the line connecting the center point of the upper part of the groove to the center of the rotor and the center line of each pole of the rotor is the turning angle of the groove, and the turning angles of the left and right tops of each layer of the magnetic steel groove are ⁇ 1, ⁇ 2, ⁇ 3, ⁇ 4, respectively.
  • the rotor of the motor is provided with a plurality of air grooves from the inside to the outside in the radial direction.
  • the top of each layer of the air groove adopts a turning design, and the turning design can change the magnetic field of the rotor to avoid the demagnetizing magnetic field facing the permanent magnet.
  • the motor is resistant to demagnetization. By adjusting the length L1 of the folding groove, the motor torque output can be ensured while improving the anti-demagnetization capability of the motor.
  • the turning angle of each pole of the motor rotor is asymmetrical to the left and right, and the obtained torque waveform under each pole is also asymmetrical.
  • a superposition of the torque waveform (positive stack) and its mirror waveform (reverse stack) per pole can be obtained.
  • the peak value of the synthesized torque waveform obtained by superimposing the asymmetric torque waveform is smaller than the original waveform peak value, so the torque ripple of the motor can be significantly reduced in this embodiment.
  • the eddy current loss of the motor is reduced due to the reduction of the axial contact area between the rotor blades.
  • the air groove turning can optimize the magnetic field distribution and improve the anti-demagnetization ability of the motor. Therefore, the motor adopting the technical solution has low torque ripple, strong anti-demagnetization capability and high efficiency.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

L'invention concerne une structure de rotor, un moteur à réluctance synchrone assisté par aimant permanent et une voiture électrique. La structure de rotor comprend un corps de rotor (10) qui est pourvu d'un groupe de fentes d'aimant permanent, comprenant une fente d'aimant permanent interne (11). Le corps de rotor (10) est en outre pourvu d'une première fente coudée (21) et d'une seconde fente coudée (22). La première fente coudée (21) est en communication avec une première extrémité de la fente d'aimant permanent interne (11), la ligne centrale géométrique dans la direction de la longueur de la première fente coudée (21) et la ligne centrale géométrique dans la direction de la longueur de la première extrémité de la fente d'aimant permanent interne (11) ayant un premier angle. La seconde fente coudée (22) est en communication avec une seconde extrémité de la fente d'aimant permanent interne (11), la ligne centrale géométrique dans la direction de la longueur de la seconde fente coudée (22) et la ligne centrale géométrique dans la direction de la longueur de la seconde extrémité de la fente d'aimant permanent interne (11) ayant un second angle. Le premier angle et le second angle sont de valeurs inégales. La réalisation des valeurs du premier angle et du second angle pour qu'elles soient inégales peut optimiser le circuit magnétique de la structure de rotor, augmentant ainsi le couple de la structure de rotor, réduisant les effets de l'ondulation de couple, augmentant la résistance du moteur à la démagnétisation et améliorant l'efficacité du moteur.
PCT/CN2018/119791 2018-03-16 2018-12-07 Structure de rotor, moteur à réluctance synchrone assisté par aimant permanent et voiture électrique WO2019174315A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810219850.9 2018-03-16
CN201810219850.9A CN108321953B (zh) 2018-03-16 2018-03-16 转子结构、永磁辅助同步磁阻电机及电动汽车

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WO2019174315A1 true WO2019174315A1 (fr) 2019-09-19

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CN113949184A (zh) * 2021-10-15 2022-01-18 浙江中车尚驰电气有限公司 一种转子冲片、转子及其应用的电机
CN116633051A (zh) * 2023-07-24 2023-08-22 中国第一汽车股份有限公司 电机转子、永磁同步电机及车辆

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CN108336842B (zh) 2018-03-16 2020-10-16 珠海格力节能环保制冷技术研究中心有限公司 转子结构、永磁辅助同步磁阻电机及电动汽车
CN108566006A (zh) 2018-03-16 2018-09-21 珠海格力节能环保制冷技术研究中心有限公司 转子结构、永磁辅助同步磁阻电机及电动汽车
CN108321953B (zh) * 2018-03-16 2020-10-23 珠海格力节能环保制冷技术研究中心有限公司 转子结构、永磁辅助同步磁阻电机及电动汽车
CN108321954B (zh) * 2018-03-16 2020-10-23 珠海格力节能环保制冷技术研究中心有限公司 转子结构、永磁辅助同步磁阻电机及电动汽车
CN108736610B (zh) * 2018-08-09 2019-07-16 珠海格力电器股份有限公司 电机转子和永磁电机
CN110994837B (zh) * 2019-12-09 2021-02-26 珠海格力电器股份有限公司 电机转子、磁阻电机和电动汽车
CN113131642B (zh) * 2019-12-30 2023-01-31 安徽威灵汽车部件有限公司 电机的转子、驱动电机和车辆
CN113410931B (zh) * 2020-03-16 2023-01-31 安徽威灵汽车部件有限公司 电机的转子、电机和车辆

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