CN112787435B - Rotor structure and motor - Google Patents
Rotor structure and motor Download PDFInfo
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- CN112787435B CN112787435B CN202110003704.4A CN202110003704A CN112787435B CN 112787435 B CN112787435 B CN 112787435B CN 202110003704 A CN202110003704 A CN 202110003704A CN 112787435 B CN112787435 B CN 112787435B
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- 238000004804 winding Methods 0.000 claims abstract description 114
- 230000005291 magnetic effect Effects 0.000 claims abstract description 72
- 230000001105 regulatory effect Effects 0.000 claims description 20
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000002955 isolation Methods 0.000 claims description 5
- 239000011810 insulating material Substances 0.000 claims description 3
- 230000003313 weakening effect Effects 0.000 abstract description 7
- 230000004907 flux Effects 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000005389 magnetism Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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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
- H02K1/223—Rotor cores with windings and permanent magnets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
- H02K3/16—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots for auxiliary purposes, e.g. damping or commutating
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The application relates to the technical field of motors in general, and particularly relates to a rotor structure and a motor, wherein the rotor structure comprises a rotor core and an adjusting piece, the rotor core is provided with a plurality of permanent magnets which are uniformly distributed in the circumferential direction, the adjusting piece is sleeved in a shaft hole of the rotor core, the adjusting piece is provided with an adjusting winding corresponding to the magnetic pole of the rotor core, when the torque output by the motor is insufficient, the current transmitted to the adjusting winding is increased, so that the direction of the magnetic field generated by the adjusting winding is consistent with that of the magnetic field generated by the permanent magnet, the main magnetic field of the motor is enhanced, the output capability of the motor is improved, when the back electromotive force energy of the motor is too high, the current input to the adjusting winding is adjusted in size, direction or frequency, so that the direction of a magnetic field generated by the adjusting winding is opposite to that of a magnetic field generated by the permanent magnet, the flux weakening effect is achieved, the electric energy consumption of the motor is reduced, and the power factor of the motor is improved.
Description
Technical Field
The application generally relates to the technical field of motors, and particularly relates to a rotor structure and a motor.
Background
The main magnetic field of the magnetic synchronous motor is provided by a permanent magnet, the generated magnetic field cannot be automatically adjusted, and the magnetic field generated by a stator winding is required to adjust and control the magnetic synchronous motor. When the load of the motor is increased, larger torque is needed, the main magnetic field needs to be enhanced, the magnetic field of a rotor cannot be adjusted, the current of a stator needs to be increased, and loss synchronization is increased.
When the motor runs at a high rotating speed, the back electromotive force of the motor exceeds the input voltage, the motor cannot input current to generate torque, in order to ensure the output capacity of the motor during high-speed running, partial current of a stator winding is needed to perform flux weakening on a rotor, the total flux linkage is reduced, the higher the rotating speed is, the deeper the flux weakening degree is, the larger the needed current is, the motor loss is increased along with the increase of the motor loss, the temperature rise of the motor is increased, and meanwhile, certain requirements are also placed on the current output capacity of a motor controller.
Disclosure of Invention
In this summary, concepts in a simplified form are introduced that are further described in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
In order to solve the technical problem that the electric energy loss is large in the process of enhancing the magnetic field and weakening the magnetism of the existing motor through the stator, the main purpose of the application is to provide a rotor structure and a motor.
In order to achieve the purpose of the invention, the following technical scheme is adopted in the application:
a motor comprises a stator and an inner rotor structure sleeved on the stator;
the rotor structure includes:
the rotor iron core is provided with a plurality of permanent magnets which are uniformly distributed in the circumferential direction;
the adjusting piece is sleeved in the shaft hole of the rotor core, and an adjusting winding is arranged on the adjusting piece corresponding to the magnetic pole of the rotor core;
the winding directions of two adjacent regulating windings are opposite;
or the regulating winding comprises at least two radially superposed winding sections, and the winding directions of two adjacent winding sections are opposite;
the motor further comprises a rotating shaft and a motor shell, wherein one end of the rotating shaft is provided with an axially extending mounting hole, and the mounting hole extends from one side of the rotor core in the axial direction to the other side of the rotor core;
when the adjusting winding comprises at least two radially superposed winding sections, and the winding directions of the adjacent two winding sections are opposite, the adjusting piece is rotatably arranged in the mounting hole corresponding to the rotor core, and is fixedly connected with the motor shell.
Further, in some embodiments of the present application, the number of the above-mentioned adjusting windings is a positive integer multiple of the total number of magnetic poles of the rotor core, and the number of the adjusting windings corresponding to each magnetic pole is the same.
Further, in some embodiments of the present application, the rotor core is provided with a magnetic steel slot for accommodating the permanent magnet.
Further, in some embodiments of the present application, the adjusting part has a circular ring structure, and the outer periphery of the adjusting part is provided with a plurality of external teeth for winding the adjusting winding.
Further, in some embodiments of the present application, a magnetism isolating groove is formed between two adjacent permanent magnets of the rotor core, and the magnetism isolating groove is disposed near the shaft hole.
Further, in some embodiments of the present application, the stator includes a stator core and stator windings installed on the stator core, and the number of the stator windings is a positive integer multiple of the number of the adjusting windings.
According to the technical scheme, the rotor structure and the motor have the advantages and positive effects that:
the magnetic field of the motor is adjusted, the electric energy consumption of the motor is reduced, and the power factor of the motor is improved.
This application provides a rotor structure on the one hand, and rotor structure includes rotor core and regulating part, and rotor core installs the permanent magnet of a plurality of circumference equipartitions, and the regulating part cover is located in rotor core's the shaft hole, just the regulating part corresponds rotor core's magnetic pole is provided with the regulation winding.
This application on the other hand provides a motor, install above-mentioned rotor structure, when the moment of motor output is not enough, increase the electric current of carrying to regulation winding, the magnetic field that makes the regulation winding produce is unanimous with the magnetic field direction that the permanent magnet produced, the reinforcing motor main magnetic field, improve motor output capacity, when motor back electromotive force can be too high, adjust electric current input to the electric current size or the direction of adjusting the winding, the magnetic field that makes the regulation winding produce is opposite with the magnetic field direction that the permanent magnet produced, play the weak magnetic effect, reduce motor power consumption, improve motor power factor.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a schematic view of a rotor structure and a stator shown in embodiment 1;
fig. 2 is a schematic view of a rotor core of a rotor structure shown in embodiment 1;
FIG. 3 is a schematic view of an adjusting member of a rotor structure shown in embodiment 1;
fig. 4 is a partial schematic view of a motor shown in embodiment 1;
FIG. 5 is a schematic view showing a rotor structure and a stator according to embodiment 2;
FIG. 6 is a schematic view of an adjusting member of a rotor structure shown in embodiment 2;
fig. 7 is a partial schematic view of a motor shown in embodiment 2.
Wherein the reference numerals are as follows:
100-rotor core; 200-a stator core; 300-an adjustment member; 400-a rotating shaft; 500-motor housing; 600-a current collector; 700-shaft sleeve;
110-a permanent magnet; 120-magnetic steel slot; 130-shaft hole; 140-a magnetism isolating groove; 150-card slot;
210-stator windings;
310-external teeth; 320-a regulating winding; 330-mounting holes;
321-a first winding segment; 322-a second winding segment;
410-mounting holes.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application are within the scope of the present application without inventive efforts, and therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention but only to represent selected embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The application provides a rotor structure and a motor, the rotor structure comprises a rotor core 100 and an adjusting piece 300, the rotor core 100 is provided with a plurality of permanent magnets 110 which are circumferentially and uniformly distributed, the adjusting piece 300 is sleeved in a shaft hole 130 of the rotor core 100, and the adjusting piece 300 is provided with an adjusting winding 320 corresponding to the magnetic pole of the rotor core 100, the motor is installed with the rotor structure, when the torque output by the motor is insufficient, the current transmitted to the adjusting winding 320 is increased, so that the direction of the magnetic field generated by the adjusting winding 320 is consistent with that of the magnetic field generated by the permanent magnet 110, the main magnetic field of the motor is enhanced, the output capability of the motor is improved, when the back electromotive force of the motor is too high, the current input to the adjusting winding 320 is adjusted in magnitude and direction, so that the magnetic field generated by the adjusting winding 320 is opposite to the magnetic field generated by the permanent magnet, the field weakening effect is achieved, the electric energy consumption of the motor is reduced, and the power factor of the motor is improved.
Example 1:
referring to fig. 1 to 3, the present embodiment provides a rotor structure and a motor, and the motor includes a rotor structure, a stator, an adjuster 300, a rotating shaft 400, a motor case 500, and a current collector 600.
Rotor structure includes rotor core 100 and regulating part 300, and rotor core 100 has seted up the magnet steel groove 120 of a plurality of circumference equipartitions, and magnet steel groove 120 is the "V" type structure in opening towards rotor core 100 outside, installs permanent magnet 110 in the magnet steel groove 120, and under the understanding of technical personnel in the art, in this application, the magnet steel groove also can be "one" style of calligraphy or "U" type etc. or install permanent magnet 110 through the mode of table subsides. Shaft hole 130 has been seted up to rotor core 100's axial, and rotor core 100 is adjacent two magnetic isolation groove 140 has been seted up between permanent magnet 110, just magnetic isolation groove 140 is close to shaft hole 130 sets up, and rotor core 100's shaft hole 130 inner wall is provided with draw-in groove 150 between two magnetic isolation grooves 140, because draw-in groove 150 and the cooperation of regulating part 300 joint, makes regulating part 300 circumference fixed mounting in shaft hole 130.
As shown in fig. 3, the adjusting member 300 is in a circular ring structure, a hole in the middle of the adjusting member 300 is defined as a through hole 330, a plurality of external teeth 310 for winding adjusting windings 320 are uniformly distributed on the periphery of the adjusting member 300, after the adjusting member 300 is matched with the rotor core 100, parts of the external teeth 310 are clamped into the clamping grooves 150, the number of the adjusting windings 320 is a positive integer multiple of the number of magnetic poles of the rotor core 100, and the number of the adjusting windings 320 corresponding to each magnetic pole is the same, so that one magnetic pole can correspond to one adjusting winding 320 and can also correspond to a plurality of adjusting windings 320, it can be understood that the number of the external teeth 310 is a positive integer multiple of the number of magnetic poles of the rotor core 100, and a plurality of clamping grooves 150 can be arranged between two magnetism isolating grooves 140 according to the number of the external teeth 310 for fixing the adjusting member 300. In this embodiment, a plurality of adjusting windings 320 may be continuously wound on the adjusting member 300 by winding, or adjusting windings 320 may be respectively wound by a plurality of groups of wires connected in parallel, the winding directions of two adjacent adjusting windings 320 are opposite, and the side magnetic fields generated by two adjacent adjusting windings 320 after current is introduced are opposite.
In this embodiment, the adjusting member 300 may be an iron core, or a magnetic structure formed by other magnetic materials.
The stator comprises a stator core 200 and stator windings 210 mounted on the stator core 200, and the number of the stator windings 210 is positive integer times of the number of the adjusting windings 320, that is, the number of teeth on the stator is positive integer times of the number of the outer teeth 310 of the adjusting piece 300.
As shown in fig. 4, the rotor core 100 and the stator core 200 are mounted inside the motor case 500. Inside stator core 200 was located to rotor core 100 rotation cover, inside rotor core 100 was located to regulating part 300 through the fixed cover of cooperation of outer tooth 310 and draw-in groove 150, the pivot 400 passed through dress hole 330, pivot 400 and regulating part 300 fixed connection, in this application, regulation winding 320 connects current collector 600, two collecting rings of current collector 600 are installed on the rotor, the both ends of regulation winding 320 connect respectively on the collecting ring of current collector 600, separate with insulating material between two collecting rings. The motor is also provided with two electric brushes (not shown), the two electric brushes respectively correspond to the two collecting rings, the electric brushes are fixed on the motor shell 500, the two ends of the stator winding 210 can be made into a plug-in type after being led out and connected to the controller in a plug-in type, when the motor controller detects that the output torque of the motor is insufficient, the current input to the adjusting winding 320 is increased through the current collector 600, the current direction is adjusted, the direction of the magnetic field generated by the adjusting winding 320 is consistent with the direction of the magnetic field generated by the permanent magnet 110, the main magnetic field of the motor is enhanced, and the output capacity is improved; when the motor controller detects that the back electromotive force of the motor is too high, the current direction is changed, the current transmitted to the adjusting winding 320 is adjusted, the direction of the magnetic field generated by the adjusting winding 320 is opposite to the direction of the magnetic field generated by the permanent magnet 110, and therefore the main magnetic field of the motor is adjusted, and the function of weakening magnetism is achieved.
It should be noted that, on the basis of the structure and principle of the present application, those skilled in the art can design the installation manner of the brush, the installation manner of the collector 600, the brush, the motor controller, and the connection between the collector 600 according to the prior art, and the description thereof is not repeated here. The motor in this application further has some necessary components, such as a bearing, which is fixedly connected to the motor casing 500, and the bearing plays a role of fixing and supporting the rotating shaft 400.
Example 2:
referring to fig. 5-7, the present embodiment provides a rotor structure and a motor, where the motor includes a rotor structure, a stator, an adjusting element 300, a rotating shaft 400, and a motor casing 500.
Rotor structure includes rotor core 100 and regulating part 300, and rotor core 100 has seted up the magnet steel groove 120 of a plurality of circumference equipartitions, and magnet steel groove 120 is the "V" type structure in the opening towards rotor core 100 outside, installs permanent magnet 110 in the magnet steel groove 120, and shaft hole 130 has been seted up to rotor core 100's axial, and the stator includes stator core 200 and installs in stator core 200's stator winding 210.
As shown in fig. 6, the adjusting element 300 is in a circular ring structure, a plurality of external teeth 310 for winding the adjusting windings 320 are uniformly distributed on the circumferential side of the adjusting element 300, the number of the adjusting windings 320 is positive integer times of the number of the magnetic poles of the rotor core 100, and the number of the adjusting windings 320 corresponding to each magnetic pole is the same. So that one magnetic pole can correspond to one regulating winding 320 and also to a plurality of regulating windings 320. It is also understood that the number of outer teeth 310 is a positive integer multiple of the number of magnetic poles of rotor core 100, and the number of stator windings 210 is a positive integer multiple of the number of adjustment windings 320, that is, the number of teeth on stator core 200 is a positive integer multiple of the number of outer teeth 310 of adjustment piece 300.
In this embodiment, the adjusting winding 320 may be formed by continuously winding a plurality of groups of windings on the adjusting part 300, and the winding directions of two adjacent groups of windings are opposite, and in fig. 6, two groups of windings are used to form the adjusting winding 320, so that the adjusting winding 320 includes a first winding section 321 and a second winding section 322, the first winding section 321 and the second winding section 322 are radially overlapped, and the winding directions of the first winding section 321 and the second winding section 322 are opposite, and the adjusting winding 320 may also be wound in other existing winding manners as will be understood by those skilled in the art.
Combine fig. 5 and fig. 7, rotor core 100, stator core 200 and regulating part 300 are all installed inside motor casing 500, rotor core 100 overlaps and locates in stator core 200, pivot 400 wears to adorn in rotor core 100's shaft hole 130, pivot 400 and rotor core 100 circumference fixed connection, axially extended mounting hole 410 is seted up to pivot 400's one end, and mounting hole 410 extends to rotor core 100's opposite side from one side of rotor core 100 axial direction, in this implementation, mounting hole 410 is seted up towards the head end axial extension of pivot 400 from the end of pivot 400, motor casing 500 is provided with the rear end cap corresponding to pivot 400's end, regulating part 300 corresponds rotor core 100 and rotates and installs in mounting hole 410, rear end cap fixed connection axle sleeve 700, axle sleeve 700 adopts the insulating material of non-magnetic conduction.
The diameter of the shaft sleeve 700 is smaller than that of the mounting hole 410 of the rotating shaft 400, the shaft sleeve 700 extends into the mounting hole 410 of the rotating shaft 400 and penetrates through the penetrating hole 330 of the adjusting piece 300, the shaft sleeve 700 is fixedly connected with the adjusting piece 300, when the rotating shaft 400 rotates, the adjusting piece 300 is in a static state in the mounting hole 410, in this embodiment, in order to facilitate connection of a three-phase outgoing line of the adjusting winding 320 with a motor controller, wire passing holes are respectively formed in a rear end cover of the motor casing 500 and the shaft sleeve 700, and the three-phase outgoing line of the adjusting winding 320 is led out from the wire passing holes.
When the magnetic field needs to be adjusted, the motor controller acquires the running state of the motor, when the output torque of the motor is insufficient, the motor controller inputs three-phase current to the adjusting winding 320, and adjusts the power and frequency, so that the rotating magnetic field generated by the adjusting winding 320 and the rotor core 100 synchronously rotate, the targeted adjustment of each magnetic pole is realized, the main magnetic field of the motor is enhanced, and the output capacity is improved; when the motor controller detects that the back electromotive force of the motor is too high, the current magnitude, the current frequency and the phase difference are changed, so that the direction of the magnetic field generated by the adjusting winding 320 is opposite to the direction of the magnetic field generated by the permanent magnet 110, the main magnetic field of the motor is adjusted, and the function of weakening magnetism is achieved.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the general inventive concept. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A motor is characterized by comprising a stator and a rotor structure sleeved in the stator; the rotor structure includes:
the rotor comprises a rotor core (100) provided with a plurality of permanent magnets (110) which are uniformly distributed in the circumferential direction;
the adjusting piece (300) is fixedly sleeved in the shaft hole (130) of the rotor core (100), and the adjusting piece (300) is provided with an adjusting winding (320) corresponding to the magnetic pole of the rotor core (100);
the winding directions of two adjacent regulating windings (320) are opposite;
after the adjusting piece (300) is matched with the rotor core (100), the number of the adjusting windings (320) is positive integral multiple of the number of the magnetic poles of the rotor core (100), and the number of the adjusting windings (320) corresponding to each magnetic pole is the same;
the motor also comprises a rotating shaft (400) and a motor shell (500);
the adjusting winding (320) is connected with a current collector (600), when a controller of the motor detects that the output torque of the motor is insufficient, the current collector (600) is used for increasing the current input to the adjusting winding (320) and adjusting the current direction, so that the direction of the magnetic field generated by the adjusting winding (320) is consistent with the direction of the magnetic field generated by the permanent magnet (110); when the controller of the motor detects that the back electromotive force of the motor is too high, the direction of the current is changed, and the magnitude of the current transmitted to the adjusting winding (320) is adjusted, so that the direction of the magnetic field generated by the adjusting winding (320) is opposite to the direction of the magnetic field generated by the permanent magnet (110).
2. A motor is characterized by comprising a stator and a rotor structure sleeved in the stator; the rotor structure includes:
the rotor comprises a rotor core (100) provided with a plurality of permanent magnets (110) which are uniformly distributed in the circumferential direction;
the adjusting piece (300) is sleeved in the shaft hole (130) of the rotor core (100), and the adjusting piece (300) is provided with an adjusting winding (320) corresponding to the magnetic pole of the rotor core (100);
the adjusting winding (320) comprises at least two radially superposed winding sections, and the winding directions of two adjacent winding sections are opposite;
the motor further comprises a rotating shaft (400) and a motor shell (500), wherein one end of the rotating shaft (400) is provided with an axially extending mounting hole (410), and the mounting hole (410) extends from one side of the rotor core (100) in the axial direction to the other side of the rotor core (100);
adjusting part (300) correspond rotor core (100) rotate install in mounting hole (410), just adjusting part (300) fixed connection motor casing (500), motor casing (500) correspond the end of pivot (400) is provided with the rear end cap, rear end cap fixed connection axle sleeve (700), axle sleeve (700) adopt the insulating material of non-magnetic conduction, axle sleeve (700) stretch into in mounting hole (410) and wear to adorn in adjusting part (300), axle sleeve (700) with adjusting part (300) fixed connection, work as when pivot (400) rotate, adjusting part (300) are in quiescent condition in mounting hole (410).
3. The electrical machine according to claim 1 or 2, wherein the number of regulating windings (320) is a positive integer multiple of the total number of magnetic poles of the rotor core (100), and the number of regulating windings (320) per magnetic pole is the same.
4. The electrical machine according to claim 1 or 2, wherein the rotor core (100) is provided with a magnet steel slot (120) for accommodating the permanent magnet (110).
5. The electric machine according to claim 1 or 2, characterized in that the adjusting piece (300) is of an annular structure, and the outer circumference of the adjusting piece (300) is provided with a plurality of external teeth (310) for winding the adjusting winding (320).
6. The motor according to claim 1 or 2, wherein a magnetic isolation groove (140) is formed in the rotor core (100) between two adjacent permanent magnets (110), and the magnetic isolation groove (140) is disposed near the shaft hole (130).
7. The electrical machine according to claim 1 or 2, wherein the stator comprises a stator core (200) and stator windings (210) mounted to the stator core (200), the number of stator windings (210) being a positive integer multiple of the number of regulating windings (320).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110003704.4A CN112787435B (en) | 2021-01-04 | 2021-01-04 | Rotor structure and motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110003704.4A CN112787435B (en) | 2021-01-04 | 2021-01-04 | Rotor structure and motor |
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| CN112787435A CN112787435A (en) | 2021-05-11 |
| CN112787435B true CN112787435B (en) | 2022-09-16 |
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| CN114465383B (en) * | 2022-02-23 | 2023-10-10 | 山东理工大学 | Rotor capable of adjusting number of magnetic poles by rotating permanent magnets |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102009044945A1 (en) * | 2009-09-24 | 2011-03-31 | Robert Bosch Gmbh | Pole-changing electrical machine |
| DE102010002390A1 (en) * | 2010-02-26 | 2011-09-01 | Robert Bosch Gmbh | Electric machine with rotor device and rotor device with optimized magnetic flux and method for operating the electric machine |
| FR2965682B1 (en) * | 2010-09-30 | 2012-09-21 | Valeo Equip Electr Moteur | SYNCHRONOUS ROTOR ELECTRIC MACHINE WITH DOUBLE EXCITATION ROTOR |
| CN103208893B (en) * | 2013-03-18 | 2015-08-05 | 南京航空航天大学 | Induced excitation formula composite excitation brushless synchronous motor |
| CN105914990A (en) * | 2016-05-11 | 2016-08-31 | 山东理工大学 | Electric automobile range extender built-in combined permanent magnetic pole and salient pole electromagnetic generator |
| CN106026583B (en) * | 2016-05-30 | 2019-01-22 | 东南大学 | One kind being based on magnetic field modulation bimorph transducer composite excitation motor |
| CN109660099B (en) * | 2018-12-10 | 2024-07-12 | 陕西法士特齿轮有限责任公司 | Mixed excitation synchronous motor |
| CN110707891A (en) * | 2019-11-08 | 2020-01-17 | 国家能源集团谏壁发电厂 | Winding type permanent magnet coupling speed regulating motor |
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