CN109309414B - Rotor structure, asynchronous starting synchronous reluctance motor and compressor - Google Patents
Rotor structure, asynchronous starting synchronous reluctance motor and compressor Download PDFInfo
- Publication number
- CN109309414B CN109309414B CN201811446006.6A CN201811446006A CN109309414B CN 109309414 B CN109309414 B CN 109309414B CN 201811446006 A CN201811446006 A CN 201811446006A CN 109309414 B CN109309414 B CN 109309414B
- Authority
- CN
- China
- Prior art keywords
- axis
- groove
- grooves
- rotor
- magnetic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/26—Rotor cores with slots for windings
- H02K1/265—Shape, form or location of the slots
-
- 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
- H02K19/00—Synchronous motors or generators
- H02K19/02—Synchronous motors
- H02K19/14—Synchronous motors having additional short-circuited windings for starting as asynchronous motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Abstract
The invention provides a rotor structure, an asynchronous starting synchronous reluctance motor and a compressor. A rotor structure comprising: the rotor comprises a rotor body (10), wherein the rotor body (10) is provided with a plurality of accommodating grooves (11) and magnetic barrier slit grooves (13), the accommodating grooves (11) are formed in a plurality of adjacent accommodating grooves (11), a first magnetic flux channel (12) passing through a q axis formed between every two adjacent accommodating grooves (11) is a main magnetic flux channel, the width of the main magnetic flux channel is D3, and the width D3 of the main magnetic flux channel is greater than that of the other adjacent accommodating grooves (11) under the same pole. So set up, guarantee that main flux channel magnetic flux flows, avoid appearing the supersaturation, can increase the difference of magnetic flux between d axle, the q axle effectively for the motor that has this rotor structure can produce bigger reluctance torque, increases the output torque and the efficiency of motor, thereby has improved the performance of motor.
Description
Technical Field
The invention relates to the technical field of motor equipment, in particular to a rotor structure, an asynchronous starting synchronous reluctance motor and a compressor.
Background
The asynchronous starting synchronous reluctance motor combines the structural characteristics of an induction motor and a reluctance motor, realizes starting by generating torque through cage induction, realizes constant-speed operation by generating reluctance torque through the difference of rotor inductance, and can be directly connected with a power supply to realize starting operation. Compared with an asynchronous starting permanent magnet motor, the asynchronous starting synchronous reluctance motor has the advantages of no rare earth permanent magnet material, no demagnetization problem, low motor cost and good reliability.
Conventionally, a rotor is provided with at least a pair of slit portions of magnetic pole projections having two poles with a q-axis in a direction in which magnetic flux easily flows and a d-axis in a direction in which magnetic flux hardly flows forming an angle of 90 degrees, and a plurality of slit portions arranged on an outer peripheral side of the slit portions, and the slit portions are filled with a conductive material. The slit portions are formed in a linear shape, and the slit portions are radially arranged at equal intervals in the circumferential direction. Since the slit portions are radially arranged at equal intervals, the magnetic flux between the slit portions flows in a direction perpendicular to the radial direction of the rotor surface. The slot part obstructs the flow of the magnetic flux in the q-axis direction, and particularly, the closer to the slot part of the d-axis, the more obvious the q-axis magnetic flux obstruction is, and the smoother the d-axis magnetic flux flow, so that the magnetic fluxes of the d-axis and the q-axis are not obviously different, the salient pole ratio is not large, and the output torque and the efficiency of the motor can not meet the requirements. Further, the slit part is made into a linear shape, and the center of the rotor is provided with the shaft hole, so that the internal space of the d-axis rotor is large, the internal space of the rotor is not well utilized to arrange the slit part to increase the salient pole ratio of the motor, and the overall performance of the motor is low.
Disclosure of Invention
The invention mainly aims to provide a rotor structure, an asynchronous starting synchronous reluctance motor and a compressor, and aims to solve the problem of low performance of the motor in the prior art.
In order to achieve the above object, according to one aspect of the present invention, there is provided a rotor structure characterized by comprising:
rotor body has seted up holding tank and magnetic barrier slot on the rotor body, and the holding tank is a plurality of, and the first magnetic flux passageway of crossing the q axle that forms between two adjacent holding tanks, the width of first magnetic flux passageway are greater than the width between other two adjacent holding tanks under same utmost.
Furthermore, a plurality of holding tanks set up along rotor body's circumference interval, and the holding tank extends along the q axle direction, forms first magnetic flux passageway between two adjacent holding tanks, and the magnetic flux direction and the q axle direction of first magnetic flux passageway are parallel, and the magnetic flux direction and the d axle of first magnetic flux passageway are perpendicular.
Furthermore, two ends of the magnetic barrier slit groove extend along the q-axis direction, a first end of the magnetic barrier slit groove corresponds to one of the accommodating grooves, a second end of the magnetic barrier slit groove corresponds to another accommodating groove of the accommodating grooves, and a separation bridge is formed between the accommodating groove and the corresponding magnetic barrier slit groove.
Furthermore, the magnetic barrier slit grooves are multiple and are arranged at intervals along the d-axis direction, a second magnetic flux channel is formed between every two adjacent magnetic barrier slit grooves, and each magnetic barrier slit groove corresponds to two accommodating grooves.
Further, the plurality of magnetic barrier slit grooves are symmetrically disposed about at least one of the q-axis and the d-axis, and/or the plurality of receiving grooves are symmetrically disposed about at least one of the q-axis and the d-axis.
Furthermore, a groove is further arranged on the outer peripheral surface of the rotor body and is located on the outer surface of the rotor body in the d-axis direction.
Further, the number of the grooves is two, and the two grooves are provided on the outer peripheral surface of the rotor body that is symmetrical about the q-axis.
Further, the maximum depth of the groove along the radial direction of the rotor body is H, wherein H is more than or equal to 0.5 delta and less than delta, and delta is the width of an air gap between the rotor body and the stator core.
Furthermore, the middle part of the rotor body is provided with a shaft hole, a central angle formed by connecting lines between two ends of the groove extending along the q-axis direction and the hole center of the shaft hole is alpha, wherein the alpha is more than or equal to 20 degrees and less than or equal to 45 degrees.
Furthermore, a first magnetic flux channel is formed between two adjacent accommodating grooves, a second magnetic flux channel is formed between the magnetic barrier slit grooves corresponding to the two accommodating grooves to form a communicated magnetic path, the width of the first magnetic flux channel is D1, the minimum width of the second magnetic flux channel is D2, and D1 is larger than or equal to D2.
Further, the width of the first flux channel is D3, wherein D3 > K, wherein K is the width of the stator teeth of the stator core.
Furthermore, the middle part of the rotor body is provided with a shaft hole, the minimum distance from the hole wall of the shaft hole to the groove wall of the magnetic barrier slit groove is D4, wherein D4 is more than or equal to 0.5 multiplied by D3.
Further, the minimum distance from the groove wall of the accommodating groove to the outer peripheral surface of the rotor body is L1, wherein 0.5 delta is larger than or equal to L1 and smaller than delta, and/or the minimum width of the separation bridge is L2, wherein 0.5 delta is larger than or equal to L2 and smaller than delta, and delta is the width of an air gap between the rotor body and the stator core.
Furthermore, the middle part of the rotor body is provided with a shaft hole, the sum of the widths of the plurality of magnetic barrier slit grooves is m, and the minimum distance from the hole wall of the shaft hole to the groove wall of the groove is m6, wherein m/m6 is Q, and Q is more than or equal to 0.3 and less than or equal to 0.5.
Further, the bottom of the groove is a cambered surface recessed towards the geometric center of the rotor body, or the bottom of the groove comprises at least one straight surface.
Further, the holding tank is used for holding electrically conductive non-magnetic material.
Further, the opposite side walls of the accommodation groove extending in the q-axis direction are parallel to the q-axis.
Further, the width of the first magnetic flux channel is larger than the width between two other adjacent magnetic barrier slit grooves under the same pole.
According to another aspect of the present invention, there is provided a rotor structure comprising: rotor body has seted up the holding tank on the rotor body, and the holding tank is a plurality of, and a plurality of holding tanks set up along rotor body's circumference interval, and the holding tank extends along the q axle direction, forms first magnetic flow passageway between two adjacent holding tanks, and the magnetic flow direction and the q axle direction of first magnetic flow passageway parallel, and the magnetic flow direction and the d axle of first magnetic flow passageway are perpendicular.
Further, the rotor body is further provided with a magnetic barrier slit groove, the two ends of the magnetic barrier slit groove extend along the q-axis direction, the first end of the magnetic barrier slit groove corresponds to one accommodating groove in the accommodating grooves, the second end of the magnetic barrier slit groove corresponds to the other accommodating groove in the accommodating grooves, and a separation bridge is formed between the accommodating groove and the corresponding magnetic barrier slit groove.
Furthermore, the magnetic barrier slit grooves are multiple and are arranged at intervals along the d-axis direction, a second magnetic flux channel is formed between every two adjacent magnetic barrier slit grooves, and each magnetic barrier slit groove corresponds to two accommodating grooves.
Further, the plurality of magnetic barrier slit grooves are symmetrically disposed about at least one of the q-axis and the d-axis, and/or the plurality of receiving grooves are symmetrically disposed about at least one of the q-axis and the d-axis.
Furthermore, a groove is further arranged on the outer peripheral surface of the rotor body and is located on the outer surface of the rotor body in the d-axis direction.
Further, the number of the grooves is two, and the two grooves are provided on the outer peripheral surface of the rotor body that is symmetrical about the q-axis.
Further, the maximum depth of the groove along the radial direction of the rotor body is H, wherein H is more than or equal to 0.5 delta and less than delta, and delta is the width of an air gap between the rotor body and the stator core.
Furthermore, the middle part of the rotor body is provided with a shaft hole, a central angle formed by connecting lines between two ends of the groove extending along the q-axis direction and the hole center of the shaft hole is alpha, wherein the alpha is more than or equal to 20 degrees and less than or equal to 45 degrees.
Furthermore, a first magnetic flux channel is formed between two adjacent accommodating grooves, a second magnetic flux channel is formed between the magnetic barrier slit grooves corresponding to the two accommodating grooves to form a communicated magnetic path, the width of the first magnetic flux channel is D1, the minimum width of the second magnetic flux channel is D2, and D1 is larger than or equal to D2.
Further, the width of the first flux path passing through the q-axis formed between the adjacent two receiving grooves is D3, wherein D3 > K, wherein K is the width of the stator teeth of the stator core.
Furthermore, the middle part of the rotor body is provided with a shaft hole and a magnetic barrier slit groove, the minimum distance from the hole wall of the shaft hole to the groove wall of the magnetic barrier slit groove is D4, wherein D4 is more than or equal to 0.5 multiplied by D3.
Further, the minimum distance from the groove wall of the accommodating groove to the outer peripheral surface of the rotor body is L1, wherein 0.5 delta is larger than or equal to L1 and smaller than delta, and/or the minimum width of the separation bridge is L2, wherein 0.5 delta is larger than or equal to L2 and smaller than delta, and delta is the width of an air gap between the rotor body and the stator core.
Furthermore, the middle part of the rotor body is provided with a shaft hole, the sum of the widths of the plurality of magnetic barrier slit grooves is m, and the minimum distance from the hole wall of the shaft hole to the groove wall of the groove is m6, wherein m/m6 is Q, and Q is more than or equal to 0.3 and less than or equal to 0.5.
Further, the bottom of the groove is a cambered surface recessed towards the geometric center of the rotor body, or the bottom of the groove comprises at least one straight surface.
Further, the holding tank is used for holding electrically conductive non-magnetic material.
Further, the opposite side walls of the accommodation groove extending in the q-axis direction are parallel to the q-axis.
According to another aspect of the present invention, there is provided an asynchronously started synchronous reluctance machine comprising a rotor structure as described above.
According to another aspect of the present invention, there is provided a compressor comprising a rotor structure, the rotor structure being as described above.
By applying the technical scheme of the invention, the flow of the magnetic flux of the main magnetic flux channel is ensured, the supersaturation is avoided, the difference of the magnetic fluxes between the d axis and the q axis can be effectively increased, the motor with the rotor structure can generate larger reluctance torque, the output torque and the efficiency of the motor are increased, and the performance of the motor is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a schematic structural view of a first embodiment of a rotor structure according to the invention;
fig. 2 shows a schematic structural view of an embodiment of a rotor structure according to the invention assembled with a stator of an electric machine;
fig. 3 shows a schematic structural view of a second embodiment of a rotor structure according to the invention;
fig. 4 shows a schematic structural view of a third embodiment of a rotor structure according to the invention;
fig. 5 shows a schematic structural view of a fourth embodiment of a rotor structure according to the invention;
fig. 6 shows a schematic structural view of a fifth embodiment of a rotor structure according to the invention;
FIG. 7 illustrates a torque curve comparison of a motor according to the present invention and a prior art motor;
wherein the figures include the following reference numerals:
10. a rotor body; 11. accommodating grooves; 12. a first magnetic flux path; 13. a magnetic barrier slit slot; 14. a second magnetic flux path;
20. a bridge;
30. a groove;
40. a shaft hole;
50. a stator core; 51. stator teeth;
60. and (4) casting an aluminum end ring.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, it is possible to enlarge the thicknesses of layers and regions for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.
Referring to fig. 1 to 7, according to an embodiment of the present invention, a rotor structure is provided.
Specifically, as shown in fig. 1, the rotor structure includes a rotor body 10. The rotor body 10 is provided with a plurality of accommodating grooves 11 and magnetic barrier slit grooves 13, the accommodating grooves 11 are a plurality of accommodating grooves 11, a first magnetic flux channel 12 passing through a q-axis formed between two adjacent accommodating grooves 11 is a main magnetic flux channel, the width of the main magnetic flux channel is D3, and the width D3 of the main magnetic flux channel is greater than the width between two other adjacent accommodating grooves 11 under the same pole.
In this embodiment, so set up, guarantee that main flux channel magnetic flux flows, avoid appearing the supersaturation, can increase the difference of the magnetic flux between d axle, the q axle effectively for the motor that has this rotor structure can produce bigger reluctance torque, increases the output torque and the efficiency of motor, thereby has improved the performance of motor.
Of course, the width of the first magnetic flux path 12 may be set larger than the width between two other adjacent magnetic barrier slit grooves 13 under the same pole. Specifically, as shown in fig. 1, the width of the first magnetic flux path 12 between two adjacent receiving grooves 11 without passing through the q-axis is D1, and the minimum width of the second magnetic flux path 14 between two adjacent magnetic barrier slit grooves 13 is D2, so that D3 > D1, and D3 > D2.
The plurality of accommodating grooves 11 are arranged at intervals in the circumferential direction of the rotor body 10, the accommodating grooves 11 extend in the q-axis direction, a first magnetic flux channel 12 is formed between two adjacent accommodating grooves 11, the magnetic flux direction of the first magnetic flux channel 12 is parallel to the q-axis direction (as shown by f1 in fig. 1), and the magnetic flux direction of the first magnetic flux channel 12 is perpendicular to the d-axis.
In this embodiment, the main flux channel width of crossing the q axle is greater than other two adjacent holding tanks or the distance between two adjacent magnetic barrier slot under the same utmost point, guarantees that main flux channel magnetic flux flows, avoids appearing the supersaturation and influences motor output torque. Through setting the holding tank to the mode of setting along q axle direction for q axle magnetic flux is unobstructed the circulation, can increase the difference of the magnetic flux between d axle, the q axle effectively, makes the motor that has this rotor structure can produce bigger reluctance torque, increases the output torque and the efficiency of motor, thereby has improved the performance of motor.
Wherein the rotor body 10 is further provided with a magnetic barrier slit groove 13. Both ends of the magnetic barrier slit groove 13 extend along the q-axis direction, a first end of the magnetic barrier slit groove 13 corresponds to one accommodating groove 11 of the plurality of accommodating grooves 11, a second end of the magnetic barrier slit groove 13 corresponds to another accommodating groove 11 of the plurality of accommodating grooves 11, and a partition bridge 20 is formed between the accommodating groove 11 and the magnetic barrier slit groove 13 corresponding thereto. Wherein, the term "corresponding" as used herein is: as shown in fig. 1, a first end of the magnetic barrier slit groove 13 on the left side of the d-axis is disposed adjacent to one end of the accommodation groove 11 on the left side of the d-axis, wherein a separation bridge 20 is provided between the first end of the magnetic barrier slit groove 13 and the accommodation groove 11. The second end of the magnetic barrier slit groove 13 on the right side of the d axis is arranged adjacent to one end of the accommodating groove 11 on the right side of the d axis, and a separation bridge 20 is also formed between the second end of the magnetic barrier slit groove 13 and the accommodating groove 11 on the right side, so that the magnetic resistance of the rotor body in the d axis direction can be effectively improved.
Preferably, the magnetic barrier slit groove 13 is plural, the plural magnetic barrier slit grooves 13 are arranged at intervals along the d-axis direction, a second magnetic flux path 14 is formed between two adjacent magnetic barrier slit grooves 13, and each magnetic barrier slit groove 13 corresponds to two receiving grooves 11. This arrangement can further improve the magnetic resistance of the rotor body in the d-axis direction, which in turn increases the difference in magnetic flux between the q-axis and the d-axis.
Specifically, the plurality of magnetic barrier slit grooves 13 are symmetrically disposed about the q-axis, the plurality of magnetic barrier slit grooves 13 are also symmetrically disposed about the d-axis, the plurality of accommodation grooves 11 are symmetrically disposed about the q-axis, and the plurality of accommodation grooves 11 are also symmetrically disposed about the d-axis.
In order to further improve the magnetic resistance of the rotor body in the d-axis direction, the outer circumferential surface of the rotor body 10 is further provided with a groove 30. The groove 30 is provided on the outer surface of the rotor in the direction of the d-axis, and the d-axis may be arranged to be located at the geometric center of the groove 30.
Preferably, as shown in fig. 1 and 2, the grooves 30 are two, and the two grooves 30 are provided on the outer circumferential surface of the rotor body 10 symmetrical about the q-axis. The maximum depth of the groove 30 in the radial direction of the rotor body 10 is H, where H is greater than or equal to 0.5 δ and less than δ, where δ is the width of the air gap between the rotor body 10 and the stator core 50. Further, the middle part of the rotor body 10 is provided with a shaft hole 40, a central angle formed by connecting lines between two ends of the groove 30 extending along the q-axis direction and the center of the shaft hole 40 is alpha, wherein alpha is more than or equal to 20 degrees and less than or equal to 45 degrees.
The first magnetic flux channel 12 formed between two adjacent accommodating grooves 11 and the second magnetic flux channel 14 formed between the magnetic barrier slit grooves 13 corresponding to the two accommodating grooves 11 form a communicated magnetic path (as shown by f1 in fig. 1), and the width of the first magnetic flux channel 12 is D1, and the minimum width of the second magnetic flux channel 14 is D2, wherein D1 is more than or equal to D2.
The width of the first flux path 12 passing through the q-axis formed between the adjacent two receiving grooves 11 is D3, where D3 > K, where K is the width of the stator teeth 51 of the stator core 50. The minimum distance from the hole wall of the shaft hole 40 to the groove wall of the magnetic barrier slit groove 13 is D4, wherein D4 is more than or equal to 0.5 multiplied by D3.
The minimum distance from the groove wall of the receiving groove 11 to the outer peripheral surface of the rotor body 10 is L1, wherein 0.5 δ ≦ L1 < δ, and the minimum width of the bridge 20 is L2 (not shown in the figure), wherein 0.5 δ ≦ L2 < δ, and δ is the air gap width between the rotor body 10 and the stator core. The sum of the widths of the plurality of magnetic barrier slit grooves 13 is m, and the minimum distance from the hole wall of the shaft hole 40 to the groove wall of the groove 30 is m6, wherein m/m6 is Q, and Q is more than or equal to 0.3 and less than or equal to 0.5. As shown in fig. 1, there are five magnetic barrier slit grooves 13 located below the q-axis, and their widths are m1, m2, m3, m4 and m5, where m is m1+ m2+ m3+ m4+ m 5.
As shown in fig. 3 to 6, the bottom of the groove 30 may be provided as a curved surface recessed toward the geometric center of the rotor body 10. Of course, the bottom of the groove 30 may also be arranged to include at least one straight face. Wherein, if the bottom of the groove 30 includes at least two straight surfaces, the angle between two adjacent straight surfaces may be a right angle or an obtuse angle. Preferably, the receiving groove 11 is used for receiving the material with electricity and magnetism conductivity as shown in f2 in fig. 1. Wherein, as shown in fig. 1, the opposite side walls (1, 2) of the receiving groove extending in the q-axis direction are parallel to the q-axis.
The rotor structure in the above embodiments may also be used in the field of motor equipment, i.e. according to another aspect of the present invention, an asynchronously started synchronous reluctance motor is provided. The motor comprises a rotor structure, and the rotor structure is the rotor structure in the embodiment. The rotor structure comprises a rotor body 10. The rotor body 10 is provided with a plurality of accommodating grooves 11 and magnetic barrier slit grooves 13, the accommodating grooves 11 are a plurality of accommodating grooves 11, a first magnetic flux channel 12 passing through a q-axis formed between two adjacent accommodating grooves 11 is a main magnetic flux channel, the width of the main magnetic flux channel is D3, and the width D3 of the main magnetic flux channel is greater than the width between two other adjacent accommodating grooves 11 or two adjacent magnetic barrier slit grooves under the same pole. The plurality of accommodating grooves 11 are arranged at intervals along the circumferential direction of the rotor body 10, the accommodating grooves 11 extend along the q-axis direction, a first magnetic flux channel 12 is formed between two adjacent accommodating grooves 11, the magnetic flux direction of the first magnetic flux channel 12 is parallel to the q-axis direction, and the magnetic flux direction of the first magnetic flux channel 12 is perpendicular to the d-axis.
In this embodiment, through setting the holding tank to the mode of setting along the q axle direction for q axle magnetic flux unobstructed circulation can increase the difference of the magnetic flux between d axle, the q axle effectively, makes the motor that has this rotor structure can produce bigger reluctance torque, increases the output torque and the efficiency of motor, thereby has improved the performance of motor.
Specifically, the application provides an asynchronous starting synchronous reluctance motor rotor structure, solves asynchronous motor inefficiency, and the problem that the rotational speed is low realizes that the motor is high-efficient constant rotational speed and moves. By adopting the rotor structure, the problems of high cost, low reliability such as magnet demagnetization and the like of the permanent magnet synchronous motor are solved. The rotor structure does not use rare earth magnets and a driving controller, can effectively reduce the manufacturing cost, and can realize the direct start of the synchronous reluctance motor by adopting the rotor with the structure.
Through holding tank and magnetic barrier combination design, the holding tank produces induction torque and realizes starting to drag into the synchronization, realizes synchronous stable operation through the reluctance torque that the magnetic barrier effect produced.
Through setting the holding tank to the horizontally mode in the q axle orientation for q axle magnetic flux unobstructed circulation, d axle magnetic flux separates completely, sets up the recess at d axle rotor surface simultaneously, further increases d axle magnetic resistance, increases d axle, q axle magnetic flux difference, makes the d axle orientation at the rotor produce bigger reluctance torque, increases motor and exert oneself and efficiency.
Through reasonable magnetic barrier and holding tank design, not only guarantee reasonable magnetic barrier and account for the design, guarantee again that the magnetic flow passageway between the magnetic barrier can not appear the oversaturation, hinder the magnetic flow and flow, effectively utilize the rotor space, reached the effect that increases d axle, q axle magnetic flux difference as far as possible.
The motor consists of a stator core with a winding and a rotor, wherein the rotor consists of a rotor core with a specific structure and cast aluminum end rings 60 at two ends of the rotor core, the rotor core is provided with a plurality of accommodating grooves and paired magnetic barrier narrow slits, and a shaft hole matched with a rotating shaft, and the upper and lower sidelines of the accommodating grooves are parallel to a q axis. And a groove is arranged on the outer surface of the d shaft of the rotor core. The accommodating groove is matched with the magnetic barrier, the magnetic flux barrier is formed in the d-axis direction, the magnetic flux channel is formed in the q-axis direction, and the accommodating groove and the magnetic barrier are symmetrical about the d-axis or the q-axis.
Two sidelines are parallel with the q axle about the holding tank, and its purpose makes q axle magnetic flux unobstructed circulation, and d axle magnetic flux separates completely, increases the difference of d axle, q axle magnetic flux, produces bigger reluctance torque, increases motor power and efficiency.
The outer surface of a d shaft of the rotor core is provided with a groove, the angle occupied by the groove corresponding to the peripheral arc of the rotor is alpha, wherein the alpha is more than or equal to 20 degrees and less than or equal to 45 degrees. The maximum depth of the groove on the d axis is H, wherein H is more than or equal to 0.5 delta and less than delta, and the shape of the groove can be various. I.e. circular arc, rectangular, inverted trapezoidal, etc. The purpose of the arrangement is to increase the d-axis air gap magnetic resistance, reduce the d-axis magnetic flux, increase the salient pole ratio and increase the motor output.
All the holding tanks are filled with conductive and non-conductive materials such as aluminum to form cast aluminum, and the holding tanks are communicated through cast aluminum end rings 60 at two ends of a rotor core to form a squirrel cage which generates asynchronous torque to start the motor and drives the motor to run at a synchronous rotating speed.
The distance of holding tank to rotor core surface is L1, and the distance of holding tank to corresponding magnetic barrier is L2, and L1, L2 satisfy: l1 is more than or equal to 0.5 delta and L2 is more than or equal to 0.5 delta, wherein delta is the width of an air gap between the stator core and the rotor core, and through the arrangement, the magnetic flux leakage of a rotor magnetic field can be reduced, and the motor efficiency is improved.
The width D1 of the magnetic flux passage between two adjacent accommodating grooves is larger than or equal to the width D2 of the minimum magnetic flux passage formed between the corresponding adjacent magnetic barrier slit grooves, namely: d1 is more than or equal to D2, and the purpose is to ensure that enough width is left between aluminum grooves, and avoid magnetic field saturation from occurring and influencing the magnetic flux circulation of the channels between magnetic barriers.
The magnetic flux channel between the upper first accommodating groove and the lower first accommodating groove of the q axis is superposed with the q axis, the width of the magnetic flux channel is D3, and the relation between D3 and the width K of the stator teeth meets the following requirements: d3 > K, i.e. the width of the q-axis flux path is greater than the width of the stator teeth, in order to ensure that the main magnetic path is not saturated, while allowing the flux to efficiently enter the stator teeth to develop torque.
The ratio of the width (m1+ m2+ m3+ m4+ m5) of all the magnetic barrier slits to the width (m6) from the shaft hole to the periphery of the rotor is Q, namely (m1+ m2+ m3+ m4+ m5)/m6 is Q epsilon [0.3-0.5], and the purpose is to select a reasonable magnetic barrier occupation ratio, ensure enough magnetic barrier width, effectively block d-axis magnetic flux, ensure a reasonable magnetic flux channel, prevent magnetic flux supersaturation, increase Q-axis magnetic flux and increase the salient pole ratio of the motor.
The rotating shaft of the motor can be made of magnetic conductive materials; the rotating shaft can also adopt a non-magnetic conductive material, and the minimum width from the shaft hole of the rotating shaft to the magnetic barriers at two sides meets the following requirements: 2 XD 4 ≧ D3, where D4 is the minimum width from the axis of rotation to the magnetic barrier, whose purpose is to prevent over-saturation of the flux in the D4 channel and impede flux flow.
In this embodiment, through setting the holding tank to the mode of setting along the q axle direction for q axle magnetic flux unobstructed circulation can increase the difference of the magnetic flux between d axle, the q axle effectively, makes the motor that has this rotor structure can produce bigger reluctance torque, increases the output torque and the efficiency of motor, thereby has improved the performance of motor.
Fig. 7 is a comparison diagram of torque curves of the asynchronous starting synchronous reluctance motor in the embodiment and the motor in the prior art, and under the same stator scheme and current, the motor in the technical scheme of the present application has 15% higher output than the motor in the prior art, the motor output is increased, and the motor efficiency is improved. The asynchronous starting synchronous moving reluctance motor is a two-pole motor.
In the above preferred embodiment, the grooves on the outer surface of the d-axis of the rotor core are removed, that is, the outer surface of the rotor is a complete circle, and the accommodating grooves are used, so that the q-axis magnetic flux flows unimpededly, the d-axis magnetic flux is completely blocked, the difference between the d-axis magnetic flux and the q-axis magnetic flux is increased, and the technical effect better than that of the motor in the prior art can be obtained.
In addition to the foregoing, it should be noted that reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally throughout this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (29)
1. A rotor structure, comprising:
the rotor comprises a rotor body (10), wherein the rotor body (10) is provided with a plurality of accommodating grooves (11) and magnetic barrier slit grooves (13), a q-axis first magnetic flux channel (12) is formed between every two adjacent accommodating grooves (11), and the width of each first magnetic flux channel (12) is larger than that of each other adjacent accommodating groove (11) under the same pole;
the accommodating grooves (11) are arranged at intervals along the circumferential direction of the rotor body (10), the accommodating grooves (11) extend along a q-axis direction, a first magnetic flux channel (12) passing through the q-axis is formed between every two adjacent accommodating grooves (11), the magnetic flux direction of the first magnetic flux channel (12) is parallel to the q-axis direction, and the magnetic flux direction of the first magnetic flux channel (12) is perpendicular to a d-axis;
the width of the first magnetic flux channel (12) passing through the q axis is D3, wherein D3 > K, wherein K is the width of the stator teeth of the stator core;
the minimum distance from the groove wall of the accommodating groove (11) to the outer peripheral surface of the rotor body (10) is L1, wherein L1 is more than or equal to 0.5 delta, and delta is the width of an air gap between the rotor body (10) and a stator core;
the magnetic barrier slot (13) is characterized in that two ends of the magnetic barrier slot (13) extend along a q-axis direction, a first end of the magnetic barrier slot (13) corresponds to one accommodating groove (11) of the accommodating grooves (11), a second end of the magnetic barrier slot (13) corresponds to the other accommodating groove (11) of the accommodating grooves (11), a separation bridge (20) is formed between the accommodating groove (11) and the corresponding magnetic barrier slot (13), the minimum width of the separation bridge (20) is L2, wherein L2 is more than or equal to 0.5 delta, the q-axis is a straight axis of the motor, and the d-axis is a crossed axis of the motor.
2. The rotor structure according to claim 1, wherein the magnetic barrier slit groove (13) is plural, a plurality of the magnetic barrier slit grooves (13) are arranged at intervals in the d-axis direction, a second magnetic flux path (14) is formed between two adjacent magnetic barrier slit grooves (13), and each magnetic barrier slit groove (13) corresponds to two receiving grooves (11).
3. The rotor structure of claim 2,
a plurality of said magnetic barrier slits (13) being arranged symmetrically with respect to at least one of the q-axis and the d-axis, and/or
A plurality of the receiving grooves (11) are symmetrically arranged with respect to at least one of a q-axis and a d-axis.
4. The rotor structure according to claim 2, characterized in that a groove (30) is further provided on the outer peripheral surface of the rotor body (10), the groove (30) being located on the outer surface of the rotor body (10) in the d-axis direction.
5. The rotor structure according to claim 4, wherein the number of the grooves (30) is two, and the two grooves (30) are provided on an outer peripheral surface of the rotor body (10) symmetrical about the q-axis.
6. The rotor structure as recited in claim 4, characterized in that the maximum depth of the groove (30) in the radial direction of the rotor body (10) is H, wherein 0.5 δ ≦ H < δ.
7. The rotor structure according to claim 4, characterized in that the middle of the rotor body (10) is provided with a shaft hole (40), and a central angle formed by a connecting line between two ends of the groove (30) extending along the q-axis direction and the center of the shaft hole (40) is alpha, wherein alpha is more than or equal to 20 degrees and less than or equal to 45 degrees.
8. The rotor structure according to claim 1, characterized in that the first flux path (12) passing through the q-axis is formed between two adjacent receiving grooves (11), the second flux path (14) formed between the flux barrier slit grooves (13) corresponding to the two receiving grooves (11) forms a communicated magnetic path, the width of the first flux path (12) passing through the q-axis is D1, the minimum width of the second flux path (14) is D2, wherein D1 is larger than or equal to D2.
9. The rotor structure according to claim 1, characterized in that the rotor body (10) has a shaft hole (40) formed in the middle, and the minimum distance from the hole wall of the shaft hole (40) to the wall of the magnetic barrier slot (13) is D4, wherein 0.5 XD 3 ≦ D4.
10. The rotor structure according to claim 4, wherein a shaft hole (40) is formed in the middle of the rotor body (10), the sum of the widths of the plurality of magnetic barrier slit grooves (13) is m, and the minimum distance from the wall of the shaft hole (40) to the wall of the groove (30) is m6, wherein m/m6 is Q, and Q is greater than or equal to 0.3 and less than or equal to 0.5.
11. The rotor structure according to claim 4,
the bottom of the groove (30) is a cambered surface recessed towards the geometric center of the rotor body (10), or the bottom of the groove (30) comprises at least one straight surface.
12. A rotor structure according to claim 1, characterised in that the receiving groove (11) is intended to receive an electrically conductive and magnetically non-conductive material.
13. The rotor structure according to claim 1, wherein the opposite side walls of the accommodation groove (11) extending in the q-axis direction are parallel to the q-axis.
14. The rotor structure according to claim 1, characterized in that the width of the first flux path (12) passing through the q-axis is larger than the width between the other adjacent two flux barrier slots (13) under the same pole.
15. A rotor structure, comprising:
the rotor comprises a rotor body (10), wherein a plurality of accommodating grooves (11) are formed in the rotor body (10), the plurality of accommodating grooves (11) are arranged at intervals along the circumferential direction of the rotor body (10), the accommodating grooves (11) extend along the q-axis direction, a first magnetic flux channel (12) passing through the q-axis is formed between every two adjacent accommodating grooves (11), the magnetic flux direction of the first magnetic flux channel (12) passing through the q-axis is parallel to the q-axis direction, and the magnetic flux direction of the first magnetic flux channel (12) passing through the q-axis is perpendicular to the d-axis;
the width of the first magnetic flux channel (12) passing through a q axis formed between two adjacent accommodating grooves (11) is D3, wherein D3 is more than K, wherein K is the width of a stator tooth of a stator core, the q axis is a straight axis of the motor, and the D axis is a quadrature axis of the motor;
the minimum distance from the groove wall of the accommodating groove (11) to the outer peripheral surface of the rotor body (10) is L1, wherein L1 is more than or equal to 0.5 delta and is more than or equal to delta, the minimum width of the partition bridge (20) is L2, wherein L2 is more than or equal to 0.5 delta and is more than delta, and delta is the width of an air gap between the rotor body (10) and a stator core.
16. The rotor structure as recited in claim 15, characterized in that the rotor body (10) is further provided with a magnetic barrier slit groove (13), both ends of the magnetic barrier slit groove (13) extend in the q-axis direction, a first end of the magnetic barrier slit groove (13) corresponds to one of the accommodation grooves (11) of the plurality of accommodation grooves (11), a second end of the magnetic barrier slit groove (13) corresponds to another accommodation groove (11) of the plurality of accommodation grooves (11), and a partition bridge (20) is formed between the accommodation groove (11) and the magnetic barrier slit groove (13) corresponding thereto.
17. The rotor structure according to claim 16, wherein the magnetic barrier slit groove (13) is plural, a plurality of the magnetic barrier slit grooves (13) are arranged at intervals in the d-axis direction, a second magnetic flux path (14) is formed between two adjacent magnetic barrier slit grooves (13), and each magnetic barrier slit groove (13) corresponds to two receiving grooves (11).
18. The rotor structure of claim 17,
a plurality of said magnetic barrier slits (13) being arranged symmetrically with respect to at least one of the q-axis and the d-axis, and/or
A plurality of the receiving grooves (11) are symmetrically arranged with respect to at least one of a q-axis and a d-axis.
19. The rotor structure according to claim 17, characterized in that a groove (30) is further provided on the outer peripheral surface of the rotor body (10), the groove (30) being located on the outer surface of the rotor body (10) in the d-axis direction.
20. The rotor structure according to claim 19, wherein the number of the grooves (30) is two, and the two grooves (30) are provided on an outer peripheral surface of the rotor body (10) symmetrical about the q-axis.
21. A rotor structure according to claim 19, characterised in that the maximum depth of the groove (30) in the radial direction of the rotor body (10) is H, where 0.5 δ ≦ H < δ, where δ is the width of the air gap between the rotor body (10) and the stator core.
22. The rotor structure according to claim 19, wherein a shaft hole (40) is formed in the middle of the rotor body (10), and a central angle formed by a connecting line between two ends of the groove (30) extending along the q-axis direction and the center of the shaft hole (40) is α, wherein α is greater than or equal to 20 ° and less than or equal to 45 °.
23. The rotor structure according to claim 17, wherein the first flux path (12) passing through the q-axis is formed between two adjacent receiving grooves (11), the second flux path (14) formed between the flux barrier slit grooves (13) corresponding to the two receiving grooves (11) forms a communicating magnetic path, the width of the first flux path (12) passing through the q-axis is D1, the minimum width of the second flux path (14) is D2, wherein D1 is ≧ D2.
24. The rotor structure according to claim 15, characterized in that the middle of the rotor body (10) is provided with a shaft hole (40) and a magnetic barrier slit groove (13), and the minimum distance from the hole wall of the shaft hole (40) to the groove wall of the magnetic barrier slit groove (13) is D4, wherein 0.5 xD 3 ≤ D4.
25. The rotor structure as claimed in claim 19, wherein a shaft hole (40) is formed in the middle of the rotor body (10), the sum of the widths of the plurality of magnetic barrier slit grooves (13) is m, and the minimum distance from the wall of the shaft hole (40) to the wall of the groove (30) is m6, wherein m/m6 is Q, and 0.3 is Q0.5.
26. The rotor structure of claim 19,
the bottom of the groove (30) is a cambered surface recessed towards the geometric center of the rotor body (10), or the bottom of the groove (30) comprises at least one straight surface.
27. The rotor structure according to claim 15, wherein the opposite side walls of the accommodation groove (11) extending in the q-axis direction are parallel to the q-axis.
28. An asynchronously started synchronous reluctance machine comprising a rotor structure, characterised in that the rotor structure is as claimed in any one of claims 1 to 27.
29. A compressor comprising a rotor structure, characterized in that the rotor structure is as claimed in any one of claims 1 to 28.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017112443625 | 2017-11-30 | ||
| CN201711244362.5A CN108011459A (en) | 2017-11-30 | 2017-11-30 | Rotor structure, asynchronous starting synchronous magnetic resistance motor and compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109309414A CN109309414A (en) | 2019-02-05 |
| CN109309414B true CN109309414B (en) | 2021-06-29 |
Family
ID=62055875
Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711244362.5A Pending CN108011459A (en) | 2017-11-30 | 2017-11-30 | Rotor structure, asynchronous starting synchronous magnetic resistance motor and compressor |
| CN201811446039.0A Active CN109510345B (en) | 2017-11-30 | 2018-11-29 | Rotor structure, asynchronous starting synchronous reluctance motor and compressor |
| CN201811446032.9A Active CN109309415B (en) | 2017-11-30 | 2018-11-29 | Rotor structure, asynchronous starting synchronous reluctance motor and compressor |
| CN201811446006.6A Active CN109309414B (en) | 2017-11-30 | 2018-11-29 | Rotor structure, asynchronous starting synchronous reluctance motor and compressor |
| CN201811446031.4A Active CN109378956B (en) | 2017-11-30 | 2018-11-29 | Rotor structure, asynchronous starting synchronous reluctance motor and compressor |
Family Applications Before (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711244362.5A Pending CN108011459A (en) | 2017-11-30 | 2017-11-30 | Rotor structure, asynchronous starting synchronous magnetic resistance motor and compressor |
| CN201811446039.0A Active CN109510345B (en) | 2017-11-30 | 2018-11-29 | Rotor structure, asynchronous starting synchronous reluctance motor and compressor |
| CN201811446032.9A Active CN109309415B (en) | 2017-11-30 | 2018-11-29 | Rotor structure, asynchronous starting synchronous reluctance motor and compressor |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811446031.4A Active CN109378956B (en) | 2017-11-30 | 2018-11-29 | Rotor structure, asynchronous starting synchronous reluctance motor and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (5) | CN108011459A (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108711969A (en) * | 2018-07-13 | 2018-10-26 | 珠海格力电器股份有限公司 | Rotor assembly and motor |
| CN108711968A (en) * | 2018-07-13 | 2018-10-26 | 珠海格力电器股份有限公司 | Rotor assembly and motor |
| CN108768015B (en) | 2018-07-20 | 2020-04-17 | 珠海格力电器股份有限公司 | Rotor assembly and motor |
| CN110212724B (en) * | 2019-06-19 | 2023-12-08 | 珠海格力电器股份有限公司 | Self-starting synchronous reluctance motor and compressor with same |
| CN110138116B (en) * | 2019-06-19 | 2020-10-02 | 珠海格力电器股份有限公司 | Rotor structure of direct-start synchronous reluctance motor, motor and compressor |
| CN112104180B (en) * | 2020-08-21 | 2023-05-09 | 石镇德 | Asynchronous starting permanent magnet auxiliary synchronous reluctance motor |
| CN112713741A (en) * | 2020-12-21 | 2021-04-27 | 中车永济电机有限公司 | Self-starting three-phase synchronous reluctance motor |
| CN112968555B (en) * | 2021-01-26 | 2023-02-28 | 珠海格力电器股份有限公司 | Rotor assembly and self-starting permanent magnet synchronous reluctance motor |
| CN112968554B (en) * | 2021-01-26 | 2022-09-09 | 珠海格力电器股份有限公司 | Rotor assembly and self-starting permanent magnet synchronous reluctance motor |
| CN112968551A (en) * | 2021-01-26 | 2021-06-15 | 珠海格力电器股份有限公司 | Rotor assembly and self-starting permanent magnet synchronous reluctance motor |
| CN112968549B (en) * | 2021-01-26 | 2022-05-17 | 珠海格力电器股份有限公司 | Rotor assembly and self-starting permanent magnet synchronous reluctance motor |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07274460A (en) * | 1994-03-30 | 1995-10-20 | Kinshiro Naito | Synchronous apparatus |
| JP4098939B2 (en) * | 1999-12-22 | 2008-06-11 | 三菱電機株式会社 | Reluctance motor |
| JP2001258220A (en) * | 2000-03-10 | 2001-09-21 | Mitsubishi Electric Corp | Reluctance motor |
| KR100565830B1 (en) * | 2002-12-12 | 2006-03-30 | 엘지전자 주식회사 | Rotor for line-start reluctance motor |
| JP4265244B2 (en) * | 2003-03-14 | 2009-05-20 | 三菱電機株式会社 | Synchronous induction motor rotor manufacturing method, synchronous induction motor rotor mold |
| JP2005006416A (en) * | 2003-06-12 | 2005-01-06 | Mitsubishi Electric Corp | Self-starting reluctance motor |
| JP4193726B2 (en) * | 2004-02-24 | 2008-12-10 | 三菱電機株式会社 | Synchronous induction motor rotor and compressor |
| JP4763320B2 (en) * | 2005-03-09 | 2011-08-31 | 三菱電機株式会社 | Synchronous induction motor rotor and compressor |
| KR100876173B1 (en) * | 2006-12-28 | 2008-12-31 | 주식회사 포스코 | Rotor manufacturing method for reluctance motor using magnetic anisotropy of oriented electrical steel sheet |
| KR100900290B1 (en) * | 2007-03-09 | 2009-05-29 | 엘지전자 주식회사 | Motor |
| KR101006681B1 (en) * | 2008-07-16 | 2011-01-10 | 엘지전자 주식회사 | Motor |
| FI122757B (en) * | 2010-10-12 | 2012-06-29 | Abb Oy | Rotor for a synchronous reluctance machine and method for making a rotor for a synchronous reluctance machine |
| CN103208894B (en) * | 2012-01-11 | 2015-07-29 | 珠海格力电器股份有限公司 | Automatic start type synchronous magnetic resistance motor and rotor thereof |
| CN105122613B (en) * | 2013-02-01 | 2019-09-13 | Ksb 股份公司 | The manufacturing method of rotor, reluctance machine and rotor |
| CN204794628U (en) * | 2015-07-23 | 2015-11-18 | 珠海格力节能环保制冷技术研究中心有限公司 | Synchronous reluctance machine and compressor |
| CN105356804B (en) * | 2015-11-01 | 2017-11-24 | 河北工业大学 | Improve synchronous magnetic resistance motor salient pole than method |
| CN207638427U (en) * | 2017-11-30 | 2018-07-20 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor structure, asynchronous starting synchronous magnetic resistance motor and compressor |
-
2017
- 2017-11-30 CN CN201711244362.5A patent/CN108011459A/en active Pending
-
2018
- 2018-11-29 CN CN201811446039.0A patent/CN109510345B/en active Active
- 2018-11-29 CN CN201811446032.9A patent/CN109309415B/en active Active
- 2018-11-29 CN CN201811446006.6A patent/CN109309414B/en active Active
- 2018-11-29 CN CN201811446031.4A patent/CN109378956B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109309415A (en) | 2019-02-05 |
| CN109510345B (en) | 2021-07-27 |
| CN109510345A (en) | 2019-03-22 |
| CN108011459A (en) | 2018-05-08 |
| CN109309414A (en) | 2019-02-05 |
| CN109378956B (en) | 2020-04-21 |
| CN109378956A (en) | 2019-02-22 |
| CN109309415B (en) | 2020-11-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109309414B (en) | Rotor structure, asynchronous starting synchronous reluctance motor and compressor | |
| CN109494903B (en) | Asynchronous starting synchronous reluctance motor rotor, motor and compressor | |
| RU2664505C1 (en) | Rotary electric machine | |
| JP5774081B2 (en) | Rotating electric machine | |
| US11799337B2 (en) | Rotating electric machine | |
| KR20150016906A (en) | Spoke permanent magnet machine with reduced torque ripple and method of manufacturing thereof | |
| US9362786B2 (en) | Poly-phase reluctance electric motor with transverse magnetic flux | |
| CN110112847B (en) | Rotor structure of direct-start synchronous reluctance motor and motor with same | |
| CN105048740A (en) | Permanent magnet and variable reluctance parallel hybrid excitation brushless motor | |
| US10236732B2 (en) | Inductor type rotary motor | |
| CN108768015B (en) | Rotor assembly and motor | |
| CN110138116B (en) | Rotor structure of direct-start synchronous reluctance motor, motor and compressor | |
| US20170040855A1 (en) | Rotor for a rotary electric machine | |
| JP5128928B2 (en) | Brushless motor | |
| JP2014155373A (en) | Multi-gap rotary electric machine | |
| KR20130021205A (en) | Switched reluctance motor | |
| CN110838779B (en) | Mixed excitation wound rotor and mixed excitation wound synchronous motor | |
| CN209805521U (en) | Rotor structure of direct-start synchronous reluctance motor and motor | |
| CN210839094U (en) | Rotor structure of direct-start synchronous reluctance motor and motor | |
| CN110212724B (en) | Self-starting synchronous reluctance motor and compressor with same | |
| CN110994839B (en) | Electric motor rotor and alternating-pole electric motor | |
| EP3926798A1 (en) | Direct-start synchronous reluctance electric motor rotor structure, electric motor and compressor | |
| WO2011089797A1 (en) | Rotor, rotating electrical machine using same, and power generator | |
| CN209805640U (en) | Self-starting synchronous reluctance motor and compressor with same | |
| JP2016129447A (en) | Rotary electric machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |