CN110729833B - Motor rotor and synchronous reluctance motor - Google Patents
Motor rotor and synchronous reluctance motor Download PDFInfo
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- CN110729833B CN110729833B CN201910923505.8A CN201910923505A CN110729833B CN 110729833 B CN110729833 B CN 110729833B CN 201910923505 A CN201910923505 A CN 201910923505A CN 110729833 B CN110729833 B CN 110729833B
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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
- H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
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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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/08—Arrangements for cooling or ventilating by gaseous cooling medium circulating wholly within the machine casing
Abstract
The application provides a motor rotor and a synchronous reluctance motor. This electric motor rotor includes rotor core (1), rotor core (1) is provided with a plurality of magnetic barrier groups along circumference, every magnetic barrier group is including a plurality of magnetic flux barriers (2) of radially arranging along the interval, form magnetic conduction passageway (3) between adjacent magnetic flux barrier (2), the both ends of each magnetic flux barrier (2) are provided with respectively under the same pole and separate magnetic bridge (4), it predetermines the interval to have between the outer circumference of magnetic bridge (4) and rotor core (1) of separating of the at least one end of at least one magnetic flux barrier (2), it forms the opening at the tip of magnetic flux barrier (2) to predetermine the interval. According to the motor rotor provided by the application, the heat dissipation capacity of the synchronous reluctance motor can be effectively improved, the problem of temperature rise of the synchronous reluctance motor is solved, and the safe and stable operation of the motor is ensured.
Description
Technical Field
The application relates to the technical field of motors, in particular to a motor rotor and a synchronous reluctance motor.
Background
The synchronous reluctance motor is a motor which drives a rotor to drive a rotating shaft to rotate by utilizing reluctance torque generated by the difference of the reluctance of a direct axis (d axis) and a quadrature axis (q axis) of the motor, and the physical essence of the synchronous reluctance motor is that magnetic lines of force are closed along a path with the minimum reluctance. The exciting magnetic field of the synchronous reluctance motor is generated by the stator winding, so that the power factor of the synchronous reluctance motor is lower than that of a permanent magnet motor with the same power, and the current is larger than that of the permanent magnet motor. Under the condition of the same volume, the temperature rise of the stator is larger than that of the two motors, and the loss of the stator is higher than that of the permanent magnet motor.
Based on the structural characteristics of the synchronous reluctance motor, the rotor assembly does not have a squirrel cage or excitation winding and the like, and rotates at the synchronous speed, so that the loss on the rotor is small (almost none) and the generated heat is small. The loss and the temperature rise of the synchronous reluctance motor are mainly generated by a motor stator winding and a stator core, and the thinking of improving the temperature rise and reducing the loss of the synchronous reluctance motor is mainly to reduce the copper loss of the winding and the iron loss of the stator core.
The problem of noise of the existing synchronous reluctance motor in operation is relatively outstanding, and the problem is closely related to the matching of a slot pole of the motor, the design of an iron core punching sheet structure and the like, so that a lot of researches on improving the noise of the synchronous reluctance motor are carried out at home and abroad.
The synchronous reluctance motor with the end winding heat dissipation structure is disclosed in the prior art, but the motor side is mainly used for dissipating heat of the end winding of the stator of the motor, and the special heat dissipation structures are arranged at the two ends of the rotor, so that when the motor runs, the heat dissipation structure is equivalent to a centrifugal fan blade to drive internal gas to flow, and further the end winding is cooled in a heat dissipation manner. This synchronous reluctance motor's heat radiation structure is more restricted, and the pertinence is stronger, can not bring comprehensive heat dissipation for synchronous reluctance motor, consequently leads to the radiating effect limited, and it is not good to synchronous reluctance motor's temperature rising problem solution effect.
Disclosure of Invention
Therefore, the technical problem that this application will be solved lies in providing a motor rotor and synchronous reluctance motor, can effectively improve synchronous reluctance motor's heat-sinking capability, improves the problem that synchronous reluctance motor temperature rise, ensures that the motor safety and stability moves.
In order to solve the above problem, the present application provides an electric motor rotor, including rotor core, rotor core is provided with a plurality of magnetic barrier groups along circumference, and every magnetic barrier group includes a plurality of magnetic flux barriers along radial interval arrangement, forms the magnetic conduction passageway between the adjacent magnetic flux barrier, and the both ends of each magnetic flux barrier are provided with magnetic isolation bridge respectively under the same pole, and the magnetic isolation bridge of at least one end of at least one magnetic flux barrier has the interval of predetermineeing between rotor core's the outer circumference, predetermines the interval and forms the opening at the tip of magnetic flux barrier.
Preferably, the magnetic isolation bridges at two ends of at least one magnetic flux barrier under the same pole have preset intervals with the outer circumference of the rotor core.
Preferably, a predetermined interval is provided between the magnetic isolation bridge at least one end of the plurality of magnetic flux barriers under the same pole and the outer circumference of the rotor core.
Preferably, a preset interval is reserved between the magnetic isolation bridge at one end of the plurality of magnetic flux barriers and the outer circumference of the rotor core, and the magnetic isolation bridges of the plurality of magnetic flux barriers are positioned at the same end of the magnetic flux barriers; or, a preset interval is reserved between the magnetic isolation bridge at one end of the magnetic flux barriers and the outer circumference of the rotor core, and the magnetic isolation bridges of at least two magnetic flux barriers are positioned at different ends of the magnetic flux barriers.
Preferably, the magnetic isolation bridges at both ends of each magnetic flux barrier have a preset interval with the outer circumference of the rotor core.
Preferably, a perpendicular distance between an outer side of the magnetic shield bridge parallel to the D-axis and the D-axis in a cross section perpendicular to the central axis of the rotor core
Dn＝D0×(0.86-0.01*n)(n＝1，2，3，…，n≤5)
D0 is the radius of the outer circumference of the rotor core, Dn is the vertical distance between the outer side edge of the nth magnetic isolation bridge from inside to outside along the radial direction and the D axis.
Preferably, in a cross section perpendicular to the center axis of the rotor core, a relationship between the width Ln of the flux barriers and the width Wn of the magnetic shield bridge satisfies:
Wn＝Ln×(1-0.1*n)(n＝1，2，3，…，n≤5)
wherein Wn is the width of the nth magnetic isolation bridge from inside to outside along the radial direction, and Ln is the width of the nth magnetic flux barrier from inside to outside along the radial direction.
Preferably, the magnetic flux barrier is provided with a connecting rib on the Q-axis, which connects the two adjacent magnetic conductive paths together.
Preferably, the motor rotor is a skewed pole rotor.
Preferably, the electrical machine rotor has a skewed pole angle of 3 ° to 8 °.
According to another aspect of the present application, there is provided a synchronous reluctance machine comprising a machine rotor as described above.
The application provides an electric motor rotor, including rotor core, rotor core is provided with a plurality of magnetic barrier groups along circumference, and every magnetic barrier group is including a plurality of magnetic flux barriers of arranging along radial interval, forms the magnetic conduction passageway between the adjacent magnetic flux barrier, and the both ends of each magnetic flux barrier are provided with respectively at the same utmost point and separate the magnetic bridge, and the interval is predetermine to have between the outer circumference of the magnetic bridge that separates of the at least one end of at least one magnetic flux barrier and rotor core, predetermines the interval and forms the opening at the tip of magnetic flux barrier. This electric motor rotor has the interval of predetermineeing between the outer circumference of the magnetic isolation bridge of the at least one end of at least one magnetic flux barrier and rotor core, can utilize this interval of predetermineeing to form the recess in the at least one end of magnetic flux barrier for the magnetic conduction passageway of this recess both sides can regard as the blade to use, dispels the heat for motor stator, strengthens the inside gas flow of motor, reaches the inside radiating effect of motor. The magnetic isolation bridge of the motor rotor is arranged in the outer circumference, the whole motor rotor is impeller-shaped, the magnetic conduction channel can serve as a blade, when the motor runs, the whole rotor provides driving torque, the special motor rotor structure can bring the effect like a fan blade, the air in a stator cavity is driven to flow, in addition, a hollow groove formed by a magnetic flux barrier of a rotor core can form a flowing circulation loop of the air in the motor, the heat of the air in the motor can be subjected to heat exchange through shells such as a machine base in the flowing process, and a part of the heat in the motor is taken away, so that more comprehensive and effective heat dissipation can be formed for the motor, the heat dissipation capacity of the synchronous reluctance motor is improved, the problem of temperature rise of the synchronous reluctance motor is solved, and the safe and stable running of the motor is ensured.
Drawings
Fig. 1 is a schematic perspective view of a rotor of an electric machine according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a rotor of an electric machine according to an embodiment of the present application;
FIG. 3 is a schematic view of a dimensional structure of a rotor of an electric machine according to an embodiment of the present application;
fig. 4 is a sectional structural view of a motor according to an embodiment of the present application;
fig. 5 is a torque comparison diagram of a synchronous reluctance motor according to an embodiment of the present application and a synchronous reluctance motor according to the related art.
The reference numerals are represented as:
1. a rotor core; 2. a magnetic flux barrier; 3. a magnetic conduction channel; 4. and a magnetic isolation bridge.
Detailed Description
Referring to fig. 1 to 5 in combination, according to an embodiment of the present application, an electric machine rotor includes a rotor core 1, the rotor core 1 is provided with a plurality of magnetic barrier groups along a circumferential direction, each magnetic barrier group includes a plurality of magnetic flux barriers 2 arranged at intervals along a radial direction, a magnetic conduction channel 3 is formed between adjacent magnetic flux barriers 2, magnetic isolation bridges 4 are respectively provided at two ends of each magnetic flux barrier 2 under a same pole, a preset interval is provided between the magnetic isolation bridge 4 at least one end of at least one magnetic flux barrier 2 and an outer circumference of the rotor core 1, and an opening is formed at an end of the magnetic flux barrier 2 at the preset interval. The preset interval is greater than 0.
This electric motor rotor has the interval of predetermineeing between the outer circumference of magnetic isolation bridge 4 of the at least one end of at least one magnetic flux barrier 2 and rotor core, can utilize this interval of predetermineeing to form the recess in the at least one end of magnetic flux barrier 2 for the magnetic conduction passageway 3 of this recess both sides can regard as the blade to use, dispels the heat for motor stator, strengthens the inside gas flow of motor, reaches the inside radiating effect of motor.
The magnetic isolation bridge 4 of the motor rotor is arranged in the outer circumference, the appearance of the whole motor rotor is in an impeller shape, the magnetic conduction channel 3 can serve as a blade, when the motor operates, the whole rotor provides driving torque, the special motor rotor structure can bring the effect like a fan blade, the air in a stator cavity is driven to flow, in addition, a hollow groove formed by the magnetic flux barrier 2 of the rotor iron core can form a flowing circulation loop of the air in the motor, the heat of the air in the motor can be subjected to heat exchange through shells such as a machine base in the flowing process, and a part of the heat in the motor is taken away, so that more comprehensive and effective heat dissipation can be formed for the motor, the heat dissipation capacity of the synchronous reluctance motor is improved, the problem of high temperature rise of the synchronous reluctance motor is solved, and the safe and stable operation of the motor is ensured.
In the embodiment, the motor rotor comprises a rotor core 1 formed by laminating rotor punching sheets and a rotor baffle, wherein the rotor baffle is made of a non-magnetic-conductive aluminum alloy material, and an air groove with the same shape as the rotor punching sheets is coated with oil for realizing an air flow channel penetrating through the rotor. The rotor core 1 and the rotor baffle are sleeved on the rotating shaft to form a rotor assembly of the synchronous reluctance motor, and the bearing is installed on the rotor assembly and assembled with the stator assembly, the end cover, the fan and other parts to form the synchronous reluctance motor.
The air groove on the rotor core forms magnetic flow barrier 2, the air groove includes two parts, the first part is located the intermediate position in air groove, and the setting of perpendicular to Q axle, two second parts set up respectively at the both ends of first part, and turn along radial outside, in this embodiment, the air groove of second part runs through rotor core 1's surface, be provided with magnetism bridge 4 in the air groove, can play the effect of strengthening rotor core 1's structural strength on the one hand, on the other hand can make things convenient for the magnetic conduction passageway to form the blade structure, conveniently introduce cooling air from the outside, cool off motor rotor.
The rotor core is made of magnetic materials such as silicon steel sheets, and therefore the magnetic conduction channel 3 is also made of magnetic materials such as silicon steel sheets and has magnetic conduction performance.
In one embodiment, the magnetic isolation bridges 4 at two ends of at least one magnetic flux barrier 2 under the same pole have a preset interval with the outer circumference of the rotor core 1. In this embodiment, as long as there is a preset interval between the outer circumference of the magnetic isolation bridge 4 of one end of the magnetic flux barrier 2 and the rotor core 1, it can be ensured that a drainage structure is formed at this position, so that in the rotating process of the motor rotor, the air flow can be introduced into the groove formed by the magnetic isolation bridge 4 and the magnetic conduction channels 3 on both sides, and the structure is utilized to drive the air in the stator cavity to surge, thereby enhancing the air flow in the motor and improving the heat dissipation effect.
In another embodiment, the magnetic isolation bridges 4 at least one end of the plurality of flux barriers 2 under the same pole have a predetermined interval from the outer circumference of the rotor core 1. When the magnetic isolation bridge 4 at least one end of the magnetic flux barriers 2 and the outer circumference of the rotor core 1 are spaced in advance, a plurality of blade structures can be formed on the periphery of the motor rotor, so that the drainage capacity of the motor rotor in the rotating process is further improved, the flowing efficiency of air flow in the motor is enhanced, and the heat dissipation effect is improved.
Specifically, when there is a predetermined interval between the magnetic shielding bridge 4 of at least one end of the plurality of magnetic flux barriers 2 and the outer circumference of the rotor core 1 under the same pole, there may be a plurality of cases where there is a predetermined interval between the magnetic shielding bridge 4 of one end of the plurality of magnetic flux barriers 2 and the outer circumference of the rotor core 1, and the magnetic shielding bridges 4 of the plurality of magnetic flux barriers 2 are located at the same end of the magnetic flux barriers 2.
Alternatively, the magnetic isolation bridges 4 of one end of the plurality of magnetic flux barriers 2 have a predetermined interval from the outer circumference of the rotor core 1, and the magnetic isolation bridges 4 of at least two magnetic flux barriers 2 are located at different ends of the magnetic flux barriers 2. In the present embodiment, each of the flux barriers 2 has a predetermined interval between the magnetic isolation bridge 4 at only one end and the outer circumference of the rotor core 1, and then two adjacent flux barriers 2, wherein the magnetic isolation bridge 4 with the predetermined interval of one flux barrier 2 is located at a first end of the flux barrier 2, and the magnetic isolation bridge 4 with the predetermined interval of the other flux barrier 2 is located at a second end of the other flux barrier 2. Because the recess that forms between the magnetic conduction passageway 3 of magnetic bridge 4 and both sides is located the difference end of magnetic flux barrier 2 respectively, consequently can all carry out the drainage from the leading edge and the back edge of electric motor rotor's direction of rotation for the whole more abundant heat dissipation cooling that can obtain of motor further improves the radiating effect.
Preferably, in the present embodiment, the magnetic isolation bridges 4 at both ends of each magnetic flux barrier 2 have a predetermined interval from the outer circumference of the rotor core 1. In this embodiment, rotor punching adopts the design that will separate the magnetic bridge 4 outsides and retract toward the direction of rotor core 1's the central axis for all there is some magnetic conduction passageway 3 to stretch out under every utmost point, and the magnetic conduction passageway 3 of extension can act as the flabellum, drives the gas surge of stator intracavity when the motor operation, strengthens the inside gas flow of motor, promotes the radiating effect.
Preferably, in a cross section perpendicular to the center axis of the rotor core 1, a perpendicular distance between an outer side edge of the magnetism isolating bridge 4 parallel to the D-axis and the D-axis
Dn＝D0×(0.86-0.01*n)(n＝1，2，3，…，n≤5)
Wherein D0 is the radius of the outer circumference of the rotor core 1, and Dn is the vertical distance between the outer side of the nth magnetic isolation bridge 4 from inside to outside along the radial direction and the D axis.
Through the aforesaid injecture, can avoid separating the magnetic bridge 4 and leading to magnetic conduction passageway 3 as the blade length undersize that stretches out, can't carry out effectual drainage and water conservancy diversion, influence the radiating effect of motor with the distance undersize between the outer circumference of rotor core 1.
In a cross section perpendicular to the center axis of the rotor core 1, the relationship between the width Ln of the flux barriers 2 and the width Wn of the magnetic shield bridges 4 satisfies:
Wn＝Ln×(1-0.1*n)(n＝1，2，3，…，n≤5)
where Wn is the width of the nth magnetic bridge 4 from inside to outside in the radial direction, and Ln is the width of the nth magnetic flux barrier 2 from inside to outside in the radial direction. Through rationally limiting the relation between the width Ln of the magnetic flux barrier 2 and the width Wn of the magnetic isolation bridge 4, the magnetic flux leakage can be effectively reduced, and the magnetic resistance utilization rate is improved.
Preferably, the magnetic flux barrier 2 is provided with a connecting rib on the Q-axis, which connects the adjacent two magnetic conductive paths 3 together. Through increasing the splice bar, can increase the inside structural strength of rotor core 1, improve motor mechanical properties, improve motor operating stability and reliability.
Preferably, the motor rotor is a skewed pole rotor. Aiming at the noise problem of the synchronous reluctance motor, the overlapping mode of the rotor punching sheets is staggered by a certain angle to form a rotor oblique pole. Because the rotor core 1 is not internally provided with magnetic steel, the realization is more convenient, and the manufacture is the same as that of a cast aluminum rotor core of an induction motor. Meanwhile, the magnetic conduction channel 3 inclined by an angle is more favorable for the flow of gas, and compared with a non-inclined structure, the flow area of the gas is increased, and the heat exchange efficiency is improved.
Viewed from the shaft extension end, the rotor punching sheet is staggered by a certain angle along the reverse direction of the motor rotation direction and is overlapped, and the rotor magnetic pole and the stator magnetic pole have an angle, so that partial harmonic waves can be weakened, and torque pulsation and noise are reduced.
Preferably, the electrical machine rotor has a skewed pole angle of 3 ° to 8 °. By properly setting the angle of the rotor oblique poles, the effect of reducing torque pulsation without sacrificing excessive torque can be achieved. Referring to fig. 5, taking a 3kW synchronous reluctance motor as an example, where the upper torque curve and the lower torque curve are torque curves at two different electrical angles without oblique poles, and the middle dotted line is the torque curve after oblique poles are adopted, it can be seen from the figure that the torque ripple can be reduced by nearly 1% by staggering 5 ° electrical angles, the torque output is reduced by less than 0.5% from the highest average value, the peak value is weakened, and the whole curve is more gradual. The better torque ripple performance is realized by using less torque sacrifice, which is very valuable for reducing the electromagnetic noise of the motor, and the actually adopted angle can be determined according to the model power of the motor and the like.
According to an embodiment of the application, a synchronous reluctance machine comprises a machine rotor, which is the machine rotor described above.
Referring to fig. 4 in combination, in the process of operating the synchronous reluctance motor, the rotor of the motor rotates to make the gas between the magnetic conduction channels 3 obtain centrifugal force, the gas is thrown out from the air layer between the magnetic conduction channels 3, the gas flows from the first end to the second end, and the air layer presents an outlet flow line state on the rotor core 1, which better conforms to the characteristic of gas flow. On gaseous throw-out blows stator core from magnetic conduction passageway 3, give stator core and winding heat dissipation along the air gap, take away the partial heat that produces in the stator core, along the fretwork air magnetic barrier on stator intracavity space and the rotor core 1, gaseous second end flows to first end from the end, forms the gas flow return circuit, promotes the inside gas of motor and passes through the heat exchange efficiency that frame, end cover etc. go on with the external world, and then improves the high condition of motor temperature rise.
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.
The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.
Claims (6)
1. The motor rotor is characterized by comprising a rotor core (1), wherein a plurality of magnetic barrier groups are arranged on the rotor core (1) along the circumferential direction, each magnetic barrier group comprises a plurality of magnetic flux barriers (2) which are arranged at intervals along the radial direction, a magnetic conduction channel (3) is formed between every two adjacent magnetic flux barriers (2), magnetic isolation bridges (4) are respectively arranged at two ends of each magnetic flux barrier (2) under the same pole, a preset interval is formed between each magnetic isolation bridge (4) at two ends of each magnetic flux barrier (2) and the outer circumference of the rotor core (1), and an opening is formed at the end part of each magnetic flux barrier (2) at the preset interval; in a cross section perpendicular to the central axis of the rotor core (1), the relationship between the width Ln of the flux barriers (2) and the width Wn of the magnetic bridges (4) satisfies:
Wn＝Ln×(1-0.1*n) (n＝1，2，3，…，n≤5)
wherein Wn is the width of the nth magnetic isolation bridge (4) from inside to outside along the radial direction, and Ln is the width of the nth magnetic flux barrier (2) from inside to outside along the radial direction.
2. An electric machine rotor according to claim 1, characterized in that the perpendicular distance between the outer side of the magnetic barrier bridge (4) parallel to the D-axis and the D-axis in a cross-section perpendicular to the centre axis of the rotor core (1)
Dn＝D0×(0.86-0.01*n) (n＝1，2，3，…，n≤5)
D0 is the radius of the outer circumference of the rotor core (1), and Dn is the vertical distance between the outer side edge of the nth magnetic isolation bridge (4) from inside to outside along the radial direction and the D axis.
3. An electric machine rotor, according to claim 1, characterized in that the flux barriers (2) are provided with connection ribs on the Q-axis connecting together two adjacent magnetically conducting channels (3).
4. An electric machine rotor as claimed in any of claims 1 to 3, characterized in that the electric machine rotor is a skewed pole rotor.
5. An electric machine rotor as claimed in claim 4, characterized in that the electric machine rotor has a skewed pole angle of 3 ° to 8 °.
6. A synchronous reluctance machine comprising a machine rotor, characterized in that the machine rotor is according to any one of claims 1 to 5.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910923505.8A CN110729833B (en) | 2019-09-27 | 2019-09-27 | Motor rotor and synchronous reluctance motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910923505.8A CN110729833B (en) | 2019-09-27 | 2019-09-27 | Motor rotor and synchronous reluctance motor |
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| CN110729833B true CN110729833B (en) | 2021-08-31 |
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| CN115864703B (en) * | 2023-03-02 | 2023-07-25 | 裕利年电子南通有限公司 | Synchronous reluctance motor rotor and processing technology thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163897A (en) * | 2011-04-21 | 2011-08-24 | 上海中科深江电动车辆有限公司 | Permanent magnetic synchronous motor structure |
| CN105553139A (en) * | 2016-01-26 | 2016-05-04 | 珠海格力节能环保制冷技术研究中心有限公司 | Synchronous reluctance motor rotor and synchronous reluctance motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7436095B2 (en) * | 2005-10-31 | 2008-10-14 | Caterpillar Inc. | Rotary electric machine |
| US20120074801A1 (en) * | 2010-09-27 | 2012-03-29 | Kollmorgen Corporation | Magnetic Rotor Having Inset Bridges To Promote Cooling |
| JP2013236419A (en) * | 2012-05-07 | 2013-11-21 | Daikin Ind Ltd | Rotary electric machine |
| JP7005131B2 (en) * | 2016-09-16 | 2022-02-04 | 株式会社東芝 | Rotor design method |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163897A (en) * | 2011-04-21 | 2011-08-24 | 上海中科深江电动车辆有限公司 | Permanent magnetic synchronous motor structure |
| CN105553139A (en) * | 2016-01-26 | 2016-05-04 | 珠海格力节能环保制冷技术研究中心有限公司 | Synchronous reluctance motor rotor and synchronous reluctance motor |
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