CN104600939A - Permanent-magnet synchronous motor and compressor with same - Google Patents
Permanent-magnet synchronous motor and compressor with same Download PDFInfo
- Publication number
- CN104600939A CN104600939A CN201510059225.9A CN201510059225A CN104600939A CN 104600939 A CN104600939 A CN 104600939A CN 201510059225 A CN201510059225 A CN 201510059225A CN 104600939 A CN104600939 A CN 104600939A
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- groove
- internal layer
- synchronous motor
- rotor
- permagnetic synchronous
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Classifications
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Synchronous Machinery (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention discloses a permanent-magnet synchronous motor and a compressor with the same. The permanent-magnet synchronous motor comprises a stator and a rotor arranged inside the stator, the rotor is provided with a plurality of groups of magnet grooves distributed circumferentially, each group of magnet grooves comprises an outer groove and an inner groove, and on the cross section of the rotor, the outer grooves extend along the circumferential direction of the rotor, and the V-shaped inner grooves are positioned on the radial inner sides of the outer grooves. The permanent-magnet synchronous motor has the advantages that the rotor is provided with the outer grooves extending along the circumferential direction of the rotor, and the V-shaped inner grooves positioned on the radial inner sides of the outer grooves, so that q-axis inductance of the motor can be enhanced effectively, a difference value between the q-axis inductance and d-axis inductance is further increased, and reluctance torque of the permanent-magnet synchronous motor can be increased.
Description
Technical field
The present invention relates to technical field of refrigeration equipment, specifically, particularly relate to a kind of permagnetic synchronous motor and there is its compressor.
Background technology
Permagnetic synchronous motor can be divided into surface-mount type permagnetic synchronous motor (SMPM) and internal permanent magnet synchronous motor (IPM) usually according to the difference of permanent magnet installation site on rotor.Built-in permagnetic synchronous motor is because permanent magnet is embedded in rotor core, and the fastness of rotor strengthens and can reduce the eddy current of permanent magnet inside.In addition, between permanent magnet internal permanent magnet synchronous motor d axle (d-axis), q axle (quadrature axis), inductance there are differences, and can also utilize the reluctance torque of motor, be improved the efficiency of motor except can utilizing the permanent-magnet torque of motor.Therefore its application is more and more extensive, and built-in permagnetic synchronous motor electromagnetic torque is made up of permanent-magnet torque and reluctance torque, and its Formula of Electromagnetic is as follows:
T＝p×ΨPM×iq+p×(Ld-Lq)×id×iq
In formula, Section 1 is permanent-magnet torque, and Section 2 is reluctance torque;
Wherein, p is motor number of pole-pairs, and Ψ PM is the magnetic linkage that rotor permanent magnet produces on stator winding, and Ld, Lq are respectively d axle and q axle inductance, and id, iq are the component of stator current space vector on d, q direction of principal axis.
Therefore, by increasing the middle Ψ PM of Section 1 and the raising of motor output torque can being realized by the difference (improve q axle inductance or reduce d axle inductance) improving motor d axle inductance and q axle inductance.
Permanent magnetism auxiliary type synchronous magnetic resistance motor is as the combination of permagnetic synchronous motor and synchronous magnetic resistance motor, make use of the reluctance torque of motor to greatest extent, and adopt permanent-magnet torque to assist, combine the advantage of two kinds of motors, its electric efficiency and power factor are all higher, therefore more and more come into one's own.In correlation technique, the permagnetic synchronous motor of individual layer magnet groove structure, the difference of its quadrature axis inductance and d-axis inductance is little, causes reluctance torque not ideal enough.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, the present invention proposes a kind of permagnetic synchronous motor, and described permagnetic synchronous motor has the advantage that Driving Torque is high, power output is high.
The present invention also proposes a kind of compressor, and described compressor has permagnetic synchronous motor as above.
Provide a kind of permagnetic synchronous motor according to an aspect of the present invention, comprising: stator; And be located at the rotor of described stator interior, described rotor has the many groups magnet groove circumferentially distributed, often organize described magnet groove and comprise outer groove and inner layer groove, on the cross section of described rotor, described outer groove extends along the circumference of described rotor, and described inner layer groove is positioned at the radially inner side of described outer groove and described inner layer groove is V-shaped.
According to permagnetic synchronous motor of the present invention, the outer groove extended by the circumference arranged on rotor along rotor and be positioned at the radially inner side of outer groove and V-shaped inner layer groove, effectively can increase the q axle inductance of motor, and then increase the difference of quadrature axis inductance and d-axis inductance, thus the reluctance torque of permagnetic synchronous motor can be increased.
In one embodiment of the invention, described outer groove comprises: the skin for holding permanent magnet holds space; And two outer side grooves, described two outer side grooves are located at described skin and hold on two relative sidewalls in space, the opening of each described outer side groove holds interior volume towards described skin, and at least one sidewall of each described outer side groove is against on the periphery wall of described permanent magnet.
Preferably, described outer side groove is located on the sidewall on the Width of described outer groove.
Alternatively, the sidewall inside the close described rotor radial of described outer side groove is against on the periphery wall of described permanent magnet.
Preferably, non-magnetic layer is filled with in described two outer side grooves.
Preferably, the center of described magnet groove about described magnet groove and the line symmetry of described rotor center.
In some embodiments of the invention, second groove that described inner layer groove comprises first groove and is communicated with described first groove, on the cross section of described rotor, described first groove and described second groove all linearly extend, and the angle of described first groove and described second groove is obtuse angle.
Further, described first groove the first internal layer comprised for holding permanent magnet holds space, be positioned at described first internal layer holds the first internal layer side groove of the one end in space and is positioned at the first internal layer side half groove that described first internal layer holds the other end in space, and the opening of described first internal layer side groove holds interior volume and at least one sidewall of described first internal layer side groove is against on the periphery wall of described permanent magnet towards described first internal layer; Described second groove the second internal layer comprised for holding permanent magnet holds space, be positioned at described second internal layer holds the second internal layer side groove of the one end in space and is positioned at the second internal layer side half groove that described second internal layer holds the other end in space, the opening of described second internal layer side groove holds interior volume towards described second internal layer, at least one sidewall of described second internal layer side groove is against on the periphery wall of described permanent magnet, and described second internal layer side half groove is communicated with described first internal layer side half groove.
Preferably, non-magnetic layer is filled with in described first internal layer side groove and described second internal layer side groove.
Provide a kind of compressor according to another aspect of the present invention, comprise permagnetic synchronous motor as above.
According to compressor of the present invention, the outer groove extended by the circumference arranged on rotor along rotor and be positioned at the radially inner side of outer groove and V-shaped inner layer groove, effectively can increase the q axle inductance of motor, and then increase the difference of quadrature axis inductance and d-axis inductance, thus the reluctance torque of permagnetic synchronous motor can be increased.
Accompanying drawing explanation
Fig. 1 is the profile of the permagnetic synchronous motor according to the embodiment of the present invention;
Fig. 2 is the partial structurtes schematic diagram of the permagnetic synchronous motor according to the embodiment of the present invention;
Fig. 3 is the partial structurtes schematic diagram of the rotor of permagnetic synchronous motor according to the embodiment of the present invention;
Fig. 4 is the partial structurtes schematic diagram of the rotor of permagnetic synchronous motor according to the embodiment of the present invention.
Reference numeral:
Permagnetic synchronous motor 100,
Stator 110,
Rotor 120, magnet groove 121,
Outer groove 122, skin holds space 1221, outer side groove 1222,
Inner layer groove 123, first groove 1231, first internal layer holds space 1232, first internal layer side groove 1233, first internal layer side half groove 1234,
Second groove 1235, second internal layer holds space 1236, second internal layer side groove 1237, second internal layer side half groove 1238,
Non-magnetic layer 124,
Permanent magnet 130.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
The permagnetic synchronous motor 100 according to the embodiment of the present invention is described in detail referring to Fig. 1-Fig. 4.It should be noted that, in an embodiment of the present invention, only list the situation that number of stator slots is 48 grooves, rotor number of poles is 8 poles, but the present invention is not limited thereto.Other number of stator slots, the combination of rotor number of poles, adopt the identical implementation method with embodiments of the invention, also can reach same beneficial effect.
As Figure 1-Figure 4, according to the permagnetic synchronous motor 100 of the embodiment of the present invention, comprising: stator 110 and rotor 120.
Specifically, as shown in Figure 1, it is inner that rotor 120 is located at stator 110, and rotor 120 has the many groups magnet groove 121 circumferentially distributed.It should be noted that, often to organize magnet groove 121 along the Axis Extension of rotor 120 and run through rotor 120.Magnet groove 121 can comprise outer groove 122 and inner layer groove 123, and on the cross section of rotor 120, outer groove 122 extends along the circumference of rotor 120.Outer groove 122 can be formed as the outer groove of linear pattern, and the linear vertical at the outer groove place of linear pattern is in a radius of rotor 120.Such as, as shown in Figure 2, OL is a radius of rotor 120, the linear vertical at the outer groove place of linear pattern and straight line OL.In other words, the straight line at the outer groove place of linear pattern is parallel with the tangent line of on rotor 120.
Inner layer groove 123 is positioned at the radially inner side (as Figure 1-Figure 4 direction, medial and lateral) of outer groove 122 and inner layer groove 123 is V-shaped.Preferably, V-type inner layer groove by outer for linear pattern groove envelope in the inside of V-type inner layer groove.As shown in Figures 2 and 3, between inner layer groove 123 and outer groove 122, there is gap, thus, be convenient to the good path that formation can be flow through for q axle magnetic flux (as shown in arrow q in Fig. 2 and Fig. 3), thus increase q axle inductance L q, and then increase the difference of q axle inductance L q and d-axis inductance L d, increase the reluctance torque (, reluctance torque can be expressed as: p × (Lq-Ld) × id × iq) of permagnetic synchronous motor 100 here.
According to the permagnetic synchronous motor 100 of the embodiment of the present invention, the outer groove 122 extended by the circumference arranged on rotor 120 along rotor 120 and the radially inner side being positioned at outer groove 122 and V-shaped inner layer groove 123, effectively can increase the q axle inductance of motor, and then increase the difference of quadrature axis inductance and d-axis inductance, thus the reluctance torque of permagnetic synchronous motor 100 can be increased.
As shown in Figure 3, in one embodiment of the invention, outer groove 122 can comprise: skin holds space 1221 and two outer side grooves 1222.Wherein, skin holds space 1221 and may be used for holding permanent magnet 130.Two outer side grooves 1222 are located at skin and hold on two relative sidewalls in space 1221, and the opening of outer side groove 1222 holds inside, space 1221 towards skin, and at least one sidewall of outer side groove 1222 is against on the periphery wall of permanent magnet 130.Thus, permanent magnet 130 can be limited to skin and hold in space 1221, prevent rotor 120 when rotated permanent magnet 130 hold in space 1221 at skin and rock.Preferably, as shown in figs 2-4, outer side groove 1222 is located on the sidewall on the Width of outer groove 122.Here, the Width of outer groove 122 can refer to the a-a direction shown in Fig. 2 and Fig. 4.Alternatively, the sidewall of close rotor 120 radially inner side of outer side groove 1222 is against on the periphery wall of permanent magnet 130.Thus, rotor 120 is in the process of rotating, and outer side groove 1222 can limit the position of permanent magnet 130, thus permanent magnet 130 can be limited to skin and hold in space 1221.
Further, as shown in figs 2-4, inner layer groove 123 can comprise: first groove 1231 and second groove 1235 be communicated with first groove 1231.Wherein, first groove 1231 and second groove 1235 all linearly extend, and on the cross section of rotor 120, the angle between the bearing of trend of first groove 1231 and the bearing of trend of second groove 1235 is obtuse angle.As shown in Figure 4, the angle that first groove 1231 and second groove 1235 are configured between V-type inner layer groove 123, first groove 1231 and second groove 1235 is jointly α and meets α > 90 °.Thus, the area in the region of first of inner layer groove 123 groove 1231 and second groove 1235 envelope (region with hatching as in Fig. 4) can be made larger, thus provide larger placement space for the setting of outer groove 122, and then effectively can increase the permanent-magnet torque of permagnetic synchronous motor 100.
As shown in Figure 3, first groove 1231 the first internal layer comprised for holding permanent magnet 130 holds space 1232, is positioned at the first internal layer and holds the first internal layer side groove 1233 of the one end in space 1232 and be positioned at the first internal layer side half groove 1234 that the first internal layer holds the other end in space 1232.That is, as shown in Figure 2, Figure 4 shows, the first internal layer side groove 1233 and the first internal layer side half groove 1234 are located at the first internal layer respectively and hold two ends on the Width in space 1232.Here " the first internal layer holds the Width in space 1232 " can refer to, in the b-b direction as shown in Fig. 2 or Fig. 4.The opening of the first internal layer side groove 1233 holds inner and at least one sidewall of the first internal layer side groove 1233 in space 1232 towards the first internal layer and is against on the periphery wall of permanent magnet 130.Thus, permanent magnet 130 can be limited to the first internal layer and hold in space 1232, prevent rotor 120 when rotated permanent magnet 130 hold in space 1232 at the first internal layer and rock.
Second groove 1235 the second internal layer comprised for holding permanent magnet 130 hold space 1236, be positioned at the second internal layer holds the second internal layer side groove 1237 of the one end in space 1236 and is positioned at the second internal layer side half groove 1238 that the second internal layer holds the other end in space 1236.That is, as shown in Figure 2, Figure 4 shows, the second internal layer side groove 1237 and the second internal layer side half groove 1238 are located at the second internal layer respectively and hold two ends on the Width in space 1236.Here " the second internal layer holds the Width in space 1236 " can refer to, in the c-c direction as shown in Fig. 2 or Fig. 4.The opening of the second internal layer side groove 1237 holds inside, space 1236 towards the second internal layer, and at least one sidewall of the second internal layer side groove 1237 is against on the periphery wall of permanent magnet 130, and the second internal layer side half groove 1238 is communicated with the first internal layer side half groove 1234.Thus, permanent magnet 130 can be limited to the second internal layer and hold in space 1236, prevent rotor 120 when rotated permanent magnet 130 hold in space 1236 at the second internal layer and rock.
For reducing the effect of the leakage flux at permanent magnet 130 two ends, in the first internal layer side groove 1233, second internal layer side groove 1237 and two outer side grooves 1222, be all filled with non-magnetic layer 124.It should be noted that, particular determination is not done for the material forming non-magnetic layer 124, such as, first internal layer side groove 1233, air can be filled with in second internal layer side groove 1237 and two outer side grooves 1222, thus, effectively can reduce the two ends of permanent magnet 130 on the Width (b-b direction as shown in Figure 2 and Figure 4) of first groove 1231, two ends on the Width (c-c direction as shown in Figure 2 and Figure 4) of second groove 1235, and the leakage flux at two ends on the Width (a-a direction as shown in figs. 2 and 4) of outer groove 122, and then improve the magnetic flux produced by permanent magnet 130, thus the electromagnetic torque increasing permagnetic synchronous motor 100 exports.
As shown in figs 2-4, for increasing the reluctance torque of permagnetic synchronous motor 100 further, the center of magnet groove 121 about magnet groove 121 and the line symmetry at rotor 120 center.That is, outer groove 122 and inner layer groove 123 are about the radius symmetry of in rotor 120.As shown in figs 2-4, straight line OL extends along a radius of rotor 120, namely the center of magnet groove 121 and the center of rotor 120 are all positioned on straight line OL, and this magnet groove 121 is symmetrical about straight line OL, and the outer groove 122 of this magnet groove 121 and inner layer groove 123 are all symmetrical about straight line OL.
Provide a kind of compressor (scheming not shown) according to another aspect of the present invention, comprise permagnetic synchronous motor 100 as above.Wherein, the rotor 120 of permagnetic synchronous motor 100 can be connected with the bent axle of compressor (scheming not shown).
According to the compressor of the embodiment of the present invention, the outer groove 122 extended by the circumference arranged on rotor 120 along rotor 120 and the radially inner side being positioned at outer groove 122 and V-shaped inner layer groove 123, effectively can increase the q axle inductance of motor, and then increase the difference of quadrature axis inductance and d-axis inductance, thus the reluctance torque of permagnetic synchronous motor 100 can be increased.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection or each other can communication; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (10)
1. a permagnetic synchronous motor, is characterized in that, comprising:
Stator; And
Be located at the rotor of described stator interior, described rotor has the many groups magnet groove circumferentially distributed, often organize described magnet groove and comprise outer groove and inner layer groove, on the cross section of described rotor, described outer groove extends along the circumference of described rotor, and described inner layer groove is positioned at the radially inner side of described outer groove and described inner layer groove is V-shaped.
2. permagnetic synchronous motor according to claim 1, is characterized in that, described outer groove comprises:
Skin for holding permanent magnet holds space; And
Two outer side grooves, described two outer side grooves are located at described skin and hold on two relative sidewalls in space, the opening of each described outer side groove holds interior volume towards described skin, and at least one sidewall of each described outer side groove is against on the periphery wall of described permanent magnet.
3. permagnetic synchronous motor according to claim 2, is characterized in that, described outer side groove is located on the sidewall on the Width of described outer groove.
4. permagnetic synchronous motor according to claim 3, is characterized in that, the sidewall inside the close described rotor radial of described outer side groove is against on the periphery wall of described permanent magnet.
5. the permagnetic synchronous motor for compressor according to claim 2, is characterized in that, is filled with non-magnetic layer in described two outer side grooves.
6. permagnetic synchronous motor according to claim 1, is characterized in that, the center of described magnet groove about described magnet groove and the line symmetry of described rotor center.
7. according to the permagnetic synchronous motor described in claim 1-6, it is characterized in that, second groove that described inner layer groove comprises first groove and is communicated with described first groove, on the cross section of described rotor, described first groove and described second groove all linearly extend, and the angle of described first groove and described second groove is obtuse angle.
8. permagnetic synchronous motor according to claim 7, it is characterized in that, described first groove the first internal layer comprised for holding permanent magnet holds space, be positioned at described first internal layer holds the first internal layer side groove of the one end in space and is positioned at the first internal layer side half groove that described first internal layer holds the other end in space, and the opening of described first internal layer side groove holds interior volume and at least one sidewall of described first internal layer side groove is against on the periphery wall of described permanent magnet towards described first internal layer;
Described second groove the second internal layer comprised for holding permanent magnet holds space, be positioned at described second internal layer holds the second internal layer side groove of the one end in space and is positioned at the second internal layer side half groove that described second internal layer holds the other end in space, the opening of described second internal layer side groove holds interior volume towards described second internal layer, at least one sidewall of described second internal layer side groove is against on the periphery wall of described permanent magnet, and described second internal layer side half groove is communicated with described first internal layer side half groove.
9. permagnetic synchronous motor according to claim 8, is characterized in that, is filled with non-magnetic layer in described first internal layer side groove and described second internal layer side groove.
10. a compressor, is characterized in that, comprises the permagnetic synchronous motor according to any one of claim 1-9.
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| CN201510059225.9A CN104600939A (en) | 2015-02-04 | 2015-02-04 | Permanent-magnet synchronous motor and compressor with same |
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| CN201510059225.9A CN104600939A (en) | 2015-02-04 | 2015-02-04 | Permanent-magnet synchronous motor and compressor with same |
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| CN105186818A (en) * | 2015-09-14 | 2015-12-23 | 常州市普世汽车电动系统有限公司 | Permanent magnet synchronous motor with hybrid magnetic circuit arrangement |
| CN105811716A (en) * | 2016-05-13 | 2016-07-27 | 山东理工大学 | Brushless electromagnetic and biradial permanent-magnet series-parallel power generator for vehicle |
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| CN110544997A (en) * | 2018-05-29 | 2019-12-06 | 华为技术有限公司 | motor rotor device and motor |
| CN111052546A (en) * | 2017-06-19 | 2020-04-21 | 日产自动车株式会社 | Rotor of rotating electric machine |
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| CN110544997B (en) * | 2018-05-29 | 2022-05-31 | 华为技术有限公司 | Motor rotor device and motor |
| CN110544997A (en) * | 2018-05-29 | 2019-12-06 | 华为技术有限公司 | motor rotor device and motor |
| CN108777520B (en) * | 2018-07-17 | 2020-03-27 | 珠海格力电器股份有限公司 | Alternating-pole motor |
| WO2020015302A1 (en) * | 2018-07-17 | 2020-01-23 | 珠海格力电器股份有限公司 | Consequent-pole motor |
| JP2021530949A (en) * | 2018-07-17 | 2021-11-11 | 珠海格力▲電▼器股▲分▼有限公司Gree Electric Appliances, Inc. Of Zhuhai | Consequential pole motor |
| JP7085685B2 (en) | 2018-07-17 | 2022-06-16 | 珠海格力▲電▼器股▲分▼有限公司 | Consequent pole motor |
| CN108777520A (en) * | 2018-07-17 | 2018-11-09 | 珠海格力电器股份有限公司 | Alternating-pole motor |
| CN112600325A (en) * | 2020-12-10 | 2021-04-02 | 苏州汇川技术有限公司 | Motor direct-pole rotor and permanent magnet synchronous motor |
| CN112600325B (en) * | 2020-12-10 | 2022-06-28 | 苏州汇川技术有限公司 | Motor direct-pole rotor and permanent magnet synchronous motor |
| CN115514125A (en) * | 2022-11-23 | 2022-12-23 | 中山大洋电机股份有限公司 | Permanent magnet auxiliary synchronous reluctance motor outer rotor and permanent magnet synchronous motor |
| CN115514125B (en) * | 2022-11-23 | 2023-02-10 | 中山大洋电机股份有限公司 | Permanent magnet auxiliary synchronous reluctance motor outer rotor and permanent magnet synchronous motor |
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Application publication date: 20150506 |