CN111600408B - Composite rotor punching sheet, permanent magnet motor and vehicle - Google Patents
Composite rotor punching sheet, permanent magnet motor and vehicle Download PDFInfo
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- CN111600408B CN111600408B CN202010542039.1A CN202010542039A CN111600408B CN 111600408 B CN111600408 B CN 111600408B CN 202010542039 A CN202010542039 A CN 202010542039A CN 111600408 B CN111600408 B CN 111600408B
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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
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
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- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a composite rotor punching sheet, a permanent magnet motor and a vehicle, wherein a first magnetic steel groove and a second magnetic steel groove are arranged on the rotor punching sheet, and are configured with corresponding detachable first magnetic steel and second magnetic steel, whether the first magnetic steel is inserted into the first magnetic steel groove and the second magnetic steel is inserted into the second magnetic steel groove is determined according to the rotating speed, torque and power required by a vehicle driving system assembly, so that the performance requirements of different assemblies of a new energy motor can be finally met, and when the performance requirements of different assemblies of the new energy motor are met, the universality and the serialization can be achieved without redesigning electromagnetism, the research and development and production periods of a motor stator and a rotor punching sheet are greatly shortened, the cost of a die is reduced, the material management and control and purchase cost are reduced, and the operation efficiency is greatly improved.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a composite rotor punching sheet, a permanent magnet motor and a vehicle.
Background
The motors are composed of a stator, a rotor, a base, an end cover and the like, and are divided into various types according to the working power supply, the structure, the principle and the like of the motor. The permanent magnet auxiliary synchronous reluctance motor is widely applied to the aspects of servo drive and the like because of the advantages of high energy density, good working efficiency, low noise and the like. In the motor, the iron core part of the stator and the iron core part of the rotor are both magnetic conductive parts of the motor, which play a crucial role in the working performance of the motor. The shape, size and technological level of the motor determine the noise, vibration, temperature rise and various force and energy indexes of the motor. The stator core and the rotor core of the motor are formed by laminating a plurality of stator punching sheets or rotor punching sheets.
However, in order to meet the performance requirements of different assemblies of a new energy motor, different electromagnetic scheme designs are generally required, however, the non-universality of the stator and rotor punching sheet of the motor leads to the greatly increased research and development period, the design performance and the NVH performance cannot meet the requirements, and the process verification and the material diversity cause low production efficiency.
Disclosure of Invention
In view of this, the embodiment of the invention provides a composite rotor punching sheet, a permanent magnet motor and a vehicle, so as to solve the problem that in the prior art, in order to meet different assembly performance requirements, different electromagnetic scheme designs are required to be performed on the motor rotor punching sheet, so that the production efficiency of a motor rotor is low.
In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions:
the invention discloses a composite rotor punching sheet in a first aspect, which comprises: punching sheets and magnetic steel;
the punching sheet is provided with a magnetic steel groove, and the magnetic steel groove comprises: the first magnetic steel groove and the second magnetic steel groove;
the magnetic steel comprises: the first magnetic steel is detachably assembled with the first magnetic steel groove, and the second magnetic steel is detachably assembled with the second magnetic steel groove.
Preferably, the magnetic steel slot further comprises: a third magnetic steel groove and a fourth magnetic steel groove;
the first magnetic steel groove, the second magnetic steel groove, the third magnetic steel groove and the fourth magnetic steel groove form a U +1 type rotor topological structure; the third magnetic steel groove forms a 1-type groove of a U + 1-type rotor topological structure, and the first magnetic steel groove, the second magnetic steel groove and the fourth magnetic steel groove are sequentially connected to form a U-type groove of the U + 1-type rotor topological structure;
the magnet steel further comprises: and the fourth magnetic steel is detachably assembled with the fourth magnetic steel groove.
Preferably, there are three modes:
in a low-speed high-torque mode, the first magnetic steel is inserted into the first magnetic steel groove, the second magnetic steel is inserted into the second magnetic steel groove, the third magnetic steel is inserted into the third magnetic steel groove, and the fourth magnetic steel is inserted into the fourth magnetic steel groove;
in the high-speed low-torque mode, the second magnetic steel is inserted into the second magnetic steel groove, the third magnetic steel is inserted into the third magnetic steel groove, and the first magnetic steel groove and the fourth magnetic steel groove are vacant;
in a medium-speed torque transferring mode, the first magnetic steel is inserted into the first magnetic steel groove, the second magnetic steel is inserted into the second magnetic steel groove, the fourth magnetic steel is inserted into the fourth magnetic steel groove, and the third magnetic steel groove is vacant;
or the like, or, alternatively,
the first magnetic steel is inserted into the first magnetic steel groove, the third magnetic steel is inserted into the third magnetic steel groove, the fourth magnetic steel is inserted into the fourth magnetic steel groove, and the second magnetic steel groove is vacant.
Preferably, the punching sheet is further provided with a magnetism isolating hole, and the magnetism isolating hole is arranged between the U-shaped groove and the two ends of the 1-shaped groove.
Preferably, the magnetic steel slot further comprises: a fourth magnetic steel groove and a fifth magnetic steel groove;
the first magnetic steel groove, the second magnetic steel groove, the fourth magnetic steel groove and the fifth magnetic steel groove form a UV type rotor topological structure;
the fifth magnetic steel groove forms a V shape of a UV type rotor topological structure, and the first magnetic steel groove, the second magnetic steel groove and the fourth magnetic steel groove are sequentially connected to form a U shape of the UV type rotor topological structure;
the magnet steel further comprises: fourth magnetic steel detachably assembled with the fourth magnetic steel groove, and fifth magnetic steel detachably assembled with the fifth magnetic steel groove.
Preferably, the magnetic steel slot further comprises: a fourth magnetic steel groove;
the first magnetic steel groove, the second magnetic steel groove and the fourth magnetic steel groove are sequentially connected to form a U-shaped rotor topological structure;
the magnet steel further comprises: and the fourth magnetic steel is detachably assembled with the fourth magnetic steel groove.
Preferably, the first magnetic steel and the second magnetic steel are made of different materials.
A second aspect of the present invention discloses a permanent magnet motor, comprising: the composite rotor sheet as disclosed in the first aspect of the present invention.
Preferably, the method further comprises the following steps: stator punching sheets;
the ratio K of the outer diameter of the composite rotor punching sheet to the outer diameter of the stator punching sheet is greater than or equal to 0.6 and less than or equal to 0.75.
A third aspect of the invention discloses a vehicle comprising: the permanent magnet machine as disclosed in the second aspect of the invention.
From the above, the invention discloses a composite rotor punching sheet, a permanent magnet motor and a vehicle, in the composite rotor punching sheet provided by the invention, by arranging the first magnetic steel groove and the second magnetic steel groove on the rotor punching sheet and configuring the corresponding detachable first magnetic steel and the second magnetic steel, and according to the rotating speed, torque and power required by the whole vehicle driving system assembly, whether the first magnetic steel is inserted into the first magnetic steel groove is determined, and the second magnetic steel is inserted into the second magnetic steel groove, so that the requirements of different assemblies of the new energy motor can be met finally, and can achieve universalization and serialization without redesigning electromagnetism when meeting the performance requirements of different assemblies of a new energy motor, greatly shortens the research and development and production periods of motor stator and rotor punching sheets, simultaneously, the mold cost is reduced, the material management and control and purchasing cost are reduced, and the operation efficiency is greatly improved.
Drawings
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, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a composite rotor sheet according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a composite rotor sheet with only a second magnetic slot inserted into a second magnetic steel according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a composite rotor sheet with only a first magnetic slot inserted into a first magnetic steel according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a composite rotor sheet with a fourth magnetic slot and a fifth magnetic slot added according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a composite rotor punching sheet in a "UV type" structure according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a composite rotor sheet with only a fourth magnetic slot added according to an embodiment of the present invention.
The magnetic steel structure comprises an isolation hole 1, magnetic steel 2, a first magnetic steel 21, a second magnetic steel 22, a third magnetic steel 23, a fourth magnetic steel 24 and a fifth magnetic steel 25; the magnetic steel groove 3, the first magnetic steel groove 31, the second magnetic steel groove 32, the third magnetic steel groove 33, the fourth magnetic steel groove 34, the fifth magnetic steel groove 35 and the punching sheet 4.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
In this application, 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 embodiment of the invention provides a composite rotor punching sheet, which is a structural schematic diagram of the composite rotor punching sheet, referring to fig. 1, fig. 2 and fig. 3, and comprises: a punching sheet 4 and magnetic steel 2;
the punching sheet 4 is provided with a magnetic steel groove 3, and the magnetic steel groove 3 comprises: a first magnetic steel groove 31 and a second magnetic steel groove 32;
the magnetic steel 2 includes: a first magnetic steel 21 detachably assembled with the first magnetic steel groove 31, and a second magnetic steel 22 detachably assembled with the second magnetic steel groove 32.
It should be noted that, the first magnetic steel slot 31 and the second magnetic steel slot 32 both belong to magnetic steels capable of being inserted into corresponding magnetic steels, and when the first magnetic steel slot 31 and the second magnetic steel slot 32 both belong to magnetic steels capable of being inserted into corresponding magnetic steels, the motor can obtain a mode meeting the requirement of a whole vehicle driving system; when the first magnetic steel groove 31 is inserted into the corresponding first magnetic steel 21, the second magnetic steel groove 32 is empty, and at the moment, the motor can obtain another mode meeting the requirement of a whole vehicle driving system; when the second magnetic steel slot 32 is inserted into the corresponding second magnetic steel 22, the first magnetic steel slot 31 is empty, and at the moment, the motor can obtain two modes different from the first two modes which meet the requirement of a whole vehicle driving system.
It should be further noted that, since the first magnetic steel slot 31 and the second magnetic steel slot 32 are arranged on the rotor punching sheet, corresponding magnetic steels can be inserted according to the requirements of the entire vehicle driving system assembly, for example, when the entire vehicle driving system assembly needs a low-speed high-torque mode, at this time, the first magnetic steel slot 31 needs to be inserted into the corresponding first magnetic steel 21, and the second magnetic steel slot 32 needs to be inserted into the corresponding second magnetic steel 22; when the whole vehicle driving system assembly needs a high-speed and low-torque mode, at the moment, the first magnetic steel groove 31 is only required to be inserted into the corresponding first magnetic steel 21, and the second magnetic steel groove 32 is empty; when the whole vehicle driving system assembly needs a middle-speed torque mode, at the moment, the second magnetic steel groove 32 is only required to be inserted into the corresponding second magnetic steel 22, and the first magnetic steel groove 31 is empty.
According to the technical scheme, the first magnetic steel groove and the second magnetic steel groove are arranged on the rotor punching sheet, the first magnetic steel and the second magnetic steel are correspondingly arranged, whether the first magnetic steel is inserted into the first magnetic steel groove or not and whether the second magnetic steel is inserted into the second magnetic steel groove or not are determined according to the rotating speed, the torque and the power required by the whole vehicle driving system assembly, so that the performance requirements of different assemblies of a new energy motor can be finally met, and when the performance requirements of different assemblies of the new energy motor are met, the universality and the serialization can be achieved without redesigning the punching sheet of the motor, the research and development and the production period of the motor stator and rotor are greatly shortened, the die cost of the punching sheet is reduced, the material and purchasing control cost is reduced, and the operation efficiency is greatly improved.
Further, as shown in fig. 4, the magnetic steel slot 3 further includes: a third magnetic steel groove 33 and a fourth magnetic steel groove 34;
the first magnetic steel groove 31, the second magnetic steel groove 32, the third magnetic steel groove 33 and the fourth magnetic steel groove 34 form a U +1 type rotor topological structure; the third magnetic steel groove 33 forms a 1-type groove of a U + 1-type rotor topological structure, and the first magnetic steel groove 31, the second magnetic steel groove 32 and the fourth magnetic steel groove 34 are sequentially connected to form a U-type groove of the U + 1-type rotor topological structure;
magnet steel 2 still includes: a third magnetic steel 23 detachably assembled with the third magnetic steel groove 33, and a fourth magnetic steel 24 detachably assembled with the fourth magnetic steel groove 34.
It should be noted that, by arranging the third magnetic steel groove 33 and the fourth magnetic steel groove 34 on the punched piece and configuring the corresponding detachable third magnetic steel 23 and the fourth magnetic steel 24, the first magnetic steel groove 31, the second magnetic steel groove 32, the third magnetic steel groove 33 and the fourth magnetic steel groove 34 form a "U +1 type" rotor topology structure, wherein the first magnetic steel groove 31, the second magnetic steel groove 32 and the fourth magnetic steel groove 34 are sequentially connected to form a U-shaped groove of the "U +1 type" rotor topology structure, and the third magnetic steel groove 33 forms a 1-shaped groove of the "U +1 type" rotor topology structure.
It should be further noted that, in this application, first magnetic steel groove 31, second magnetic steel groove 32 with fourth magnetic steel groove 34 connects gradually the U type groove that constitutes "U +1 type" rotor topological structure and is the inlayer groove, third magnetic steel groove 33 constitutes 1 type groove of "U +1 type" rotor topological structure and is outer groove, inlayer groove and outer groove are for defining towards 4 centre of a circle distances of piece, and outer groove is compared in inlayer groove and towards 4 centre of a circle distances of piece far away.
Further, the composite rotor sheet has three modes:
in a low-speed high-torque mode, the first magnetic steel 21 is inserted into the first magnetic steel groove 31, the second magnetic steel 22 is inserted into the second magnetic steel groove 32, the third magnetic steel 23 is inserted into the third magnetic steel groove 33, and the fourth magnetic steel 24 is inserted into the fourth magnetic steel groove 34;
in a high-speed low-torque mode, the second magnetic steel 22 is inserted into the second magnetic steel groove 32, the third magnetic steel 23 is inserted into the third magnetic steel groove 33, and the first magnetic steel groove 31 and the fourth magnetic steel groove 34 are vacant;
in a medium-speed torque mode, the first magnetic steel 21 is inserted into the first magnetic steel groove 31, the second magnetic steel 22 is inserted into the second magnetic steel groove 32, the fourth magnetic steel 24 is inserted into the fourth magnetic steel groove 34, and the third magnetic steel groove 33 is empty;
or the like, or, alternatively,
the first magnetic steel 21 is inserted into the first magnetic steel groove 31, the third magnetic steel 23 is inserted into the third magnetic steel groove 33, the fourth magnetic steel 24 is inserted into the fourth magnetic steel groove 34, and the second magnetic steel groove 32 is vacant.
It should be noted that, the low-speed high-torque mode is a mode in which the motor can generate a large torque under the condition of low-speed rotation; the high-speed small-torque mode is that a motor generates very small torque under the condition of high-speed rotation; the medium-speed and medium-torque mode is a mode in which the motor generates a torque intermediate between a large torque and a small torque at a medium speed.
It should be further noted that, in the middle speed torque mode, the first mode may be implemented in two ways, that is, the first magnetic steel 21 is inserted into the first magnetic steel slot 31, the second magnetic steel 22 is inserted into the second magnetic steel slot 32, the fourth magnetic steel 24 is inserted into the fourth magnetic steel slot 34, and the third magnetic steel slot 33 is empty;
the second type is that the first magnetic steel 21 is inserted into the first magnetic steel groove 31, the third magnetic steel 23 is inserted into the third magnetic steel groove 33, the fourth magnetic steel 24 is inserted into the fourth magnetic steel groove 34, and the second magnetic steel groove 32 is vacant.
Further, referring to fig. 1, the punching sheet 4 is further provided with a magnetism isolating hole 1, and the magnetism isolating hole 1 is arranged between the U-shaped groove and two ends of the 1-shaped groove.
The magnetism isolating hole 1 can reduce the torque pulsation of the motor under various working conditions, improve the THD content of a load air gap waveform and improve the NVH performance.
It should be noted that, when no magnetic steel is inserted into one or more of the first magnetic steel groove 31, the second magnetic steel groove 32, the third magnetic steel groove 33, and the fourth magnetic steel groove 34, the magnetic steel groove at this time becomes the new magnetism isolating hole 1.
For example: the second magnetic steel groove 32, the third magnetic steel groove 33 and the fourth magnetic steel groove 34 are all inserted with magnetic steel, and only when the first magnetic steel 21 is not inserted into the first magnetic steel groove 31, the first magnetic steel groove 31 is the magnetic isolation hole 1.
Further, as shown in fig. 5, the magnetic steel slot 3 further includes: a fourth magnetic steel groove 34 and a fifth magnetic steel groove 35;
the first magnetic steel groove 31, the second magnetic steel groove 32, the fourth magnetic steel groove 34 and the fifth magnetic steel groove 35 form a UV type rotor topological structure;
the fifth magnetic steel groove 35 forms a V shape of a 'UV type' rotor topological structure, and the first magnetic steel groove 31, the second magnetic steel groove 32 and the fourth magnetic steel groove 34 are sequentially connected to form a U shape of the 'UV type' rotor topological structure;
magnet steel 2 still includes: a fourth magnetic steel 24 for detachable assembly with the fourth magnetic steel groove 34, and a fifth magnetic steel 25 for detachable assembly with the fifth magnetic steel groove 35.
It should be noted that, by arranging the fourth magnetic steel groove 34 and the fifth magnetic steel groove 35, and arranging the corresponding detachable fourth magnetic steel 24 and the detachable fifth magnetic steel 25, various requirements of the entire vehicle driving system assembly can be met.
Further, as shown in fig. 6, the magnetic steel slot 3 further includes: a fourth magnetic steel groove 34;
the first magnetic steel groove 31, the second magnetic steel groove 32 and the fourth magnetic steel groove 34 are connected in sequence to form a U-shaped rotor topological structure;
magnet steel 2 still includes: and the fourth magnetic steel 24 is detachably assembled with the fourth magnetic steel groove 34.
In the present invention, a U-shaped rotor topology structure is formed by providing a fourth magnetic steel slot 34 and connecting the first magnetic steel slot 31, the second magnetic steel slot 32, and the fourth magnetic steel slot 34 in sequence.
Further, the first magnetic steel 21 and the second magnetic steel 22 are made of different materials.
It should be noted that the materials of the first magnetic steel 21 and the second magnetic steel 22 may be the same or different, in the present invention, it is preferable that the materials of the first magnetic steel 21 and the second magnetic steel 22 are different, and the materials of the first magnetic steel 21 and the second magnetic steel 22 may be a combination of N35UH and N38UH, where the material of the first magnetic steel 21 is N35UH, the material of the second magnetic steel 22 is N38UH, or the material of the first magnetic steel 21 is N38UH, and the material of the second magnetic steel 22 is N35 UH; the first magnetic steel 21 and the second magnetic steel 22 may be made of a combination of ferrite and N35UH, but in the present invention, the first magnetic steel 21 and the second magnetic steel 22 may be made of other combinations of materials, which is not limited to the above examples.
The present invention also discloses a permanent magnet motor, which, with reference to fig. 1 to 6, comprises: compounding rotor sheets;
the composite rotor sheet comprises: a punching sheet 4 and magnetic steel 2;
the punching sheet 4 is provided with a magnetic steel groove 3, and the magnetic steel groove 3 comprises: a first magnetic steel groove 31 and a second magnetic steel groove 32;
the magnetic steel 2 includes: a first magnetic steel 21 detachably assembled with the first magnetic steel groove 31, and a second magnetic steel 22 detachably assembled with the second magnetic steel groove 32.
According to the technical scheme, the first magnetic steel groove and the second magnetic steel groove are formed in the rotor punching sheet, the first magnetic steel and the second magnetic steel are correspondingly arranged, whether the first magnetic steel is inserted into the first magnetic steel groove or not and whether the second magnetic steel is inserted into the second magnetic steel groove or not are determined according to the rotating speed, the torque and the power required by the whole vehicle driving system assembly, so that the performance requirements of different assemblies of the new energy motor can be finally met, and when the performance requirements of different assemblies of the new energy motor are met, the universality and the serialization can be achieved without redesigning the punching sheet of the motor, the research and development and production periods of the motor stator and rotor punching sheet are greatly shortened, the punching sheet die cost is reduced, the material management and control and the cost are reduced, and the operation efficiency is greatly improved.
The invention also discloses a vehicle comprising: a permanent magnet motor;
the permanent magnet motor includes: compounding rotor sheets;
the composite rotor sheet comprises: a punching sheet 4 and magnetic steel 2;
the punching sheet 4 is provided with a magnetic steel groove 3, and the magnetic steel groove 3 comprises: a first magnetic steel groove 31 and a second magnetic steel groove 32;
the magnetic steel 2 includes: a first magnetic steel 21 detachably assembled with the first magnetic steel groove 31, and a second magnetic steel 22 detachably assembled with the second magnetic steel groove 32.
According to the technical scheme, in the composite rotor punching sheet of the permanent magnet motor in the vehicle, the first magnetic steel groove and the second magnetic steel groove are arranged on the rotor punching sheet, the first magnetic steel and the second magnetic steel are correspondingly arranged, whether the first magnetic steel is inserted into the first magnetic steel groove or not and whether the second magnetic steel is inserted into the second magnetic steel groove or not are determined according to the rotating speed, the torque and the power required by the whole vehicle driving system assembly, so that the performance requirements of different assemblies of a new energy motor can be finally met, and when the performance requirements of different assemblies of the new energy motor are met, the universality and the serialization can be achieved without redesigning the punching sheet of the motor, the research and development and the production period of the motor stator and rotor punching sheet are greatly shortened, the punching sheet die cost is reduced, the material management and control and purchase cost are reduced, and the operation efficiency is greatly improved.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, the system or system embodiments are substantially similar to the method embodiments and therefore are described in a relatively simple manner, and reference may be made to some of the descriptions of the method embodiments for related points. The above-described system and system embodiments are only illustrative, wherein the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use 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 spirit or scope of the invention. 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 (5)
1. A composite rotor sheet, comprising: a punching sheet (4) and a magnetic steel (2);
towards piece (4) is equipped with magnetic steel groove (3), magnetic steel groove (3) include: a first magnetic steel groove (31), a second magnetic steel groove (32), a third magnetic steel groove (33) and a fourth magnetic steel groove (34);
the magnetic steel (2) comprises: a first magnetic steel (21) detachably assembled with the first magnetic steel groove (31), a second magnetic steel (22) detachably assembled with the second magnetic steel groove (32), a third magnetic steel (23) detachably assembled with the third magnetic steel groove (33), and a fourth magnetic steel (24) detachably assembled with the fourth magnetic steel groove (34);
the first magnetic steel groove (31), the second magnetic steel groove (32), the third magnetic steel groove (33) and the fourth magnetic steel groove (34) form a U +1 type rotor topological structure; the third magnetic steel groove (33) forms a 1-type groove of a U + 1-type rotor topological structure, and the first magnetic steel groove (31), the second magnetic steel groove (32) and the fourth magnetic steel groove (34) are sequentially connected to form a U-type groove of the U + 1-type rotor topological structure;
the composite rotor sheet has three modes:
in a low-speed high-torque mode, the first magnetic steel (21) is inserted into the first magnetic steel groove (31), the second magnetic steel (22) is inserted into the second magnetic steel groove (32), the third magnetic steel (23) is inserted into the third magnetic steel groove (33), and the fourth magnetic steel (24) is inserted into the fourth magnetic steel groove (34);
in a high-speed low-torque mode, the second magnetic steel (22) is inserted into the second magnetic steel groove (32), the third magnetic steel (23) is inserted into the third magnetic steel groove (33), and the first magnetic steel groove (31) and the fourth magnetic steel groove (34) are vacant;
in a medium-speed torque transferring mode, the first magnetic steel (21) is inserted into the first magnetic steel groove (31), the second magnetic steel (22) is inserted into the second magnetic steel groove (32), the fourth magnetic steel (24) is inserted into the fourth magnetic steel groove (34), and the third magnetic steel groove (33) is vacant;
or, the first magnetic steel (21) is inserted into the first magnetic steel groove (31), the third magnetic steel (23) is inserted into the third magnetic steel groove (33), the fourth magnetic steel (24) is inserted into the fourth magnetic steel groove (34), and the second magnetic steel groove (32) is vacant;
the punching sheet (4) is further provided with a magnetism isolating hole (1), and the magnetism isolating hole (1) is arranged between the U-shaped groove and the two ends of the 1-shaped groove.
2. The composite rotor sheet as recited in claim 1, wherein the first magnetic steel (21) and the second magnetic steel (22) are of different materials.
3. The composite rotor sheet as recited in claim 1, wherein the first magnetic steel (21) is made of N35UH, and the second magnetic steel (22) is made of N38 UH;
or the material of the first magnetic steel (21) is N38UH, and the material of the second magnetic steel (22) is N35 UH;
or the first magnetic steel (21) and the second magnetic steel (22) are made of ferrite and N35 UH.
4. A permanent magnet electric machine, comprising: the composite rotor sheet of any of claims 1-3;
further comprising: stator punching sheets;
the ratio K of the outer diameter of the composite rotor punching sheet to the outer diameter of the stator punching sheet is greater than or equal to 0.6 and less than or equal to 0.75.
5. A vehicle, characterized by comprising: the permanent magnet electric machine of claim 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010542039.1A CN111600408B (en) | 2020-06-15 | 2020-06-15 | Composite rotor punching sheet, permanent magnet motor and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010542039.1A CN111600408B (en) | 2020-06-15 | 2020-06-15 | Composite rotor punching sheet, permanent magnet motor and vehicle |
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| CN111600408A CN111600408A (en) | 2020-08-28 |
| CN111600408B true CN111600408B (en) | 2022-02-08 |
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| CN202010542039.1A Active CN111600408B (en) | 2020-06-15 | 2020-06-15 | Composite rotor punching sheet, permanent magnet motor and vehicle |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112018917B (en) * | 2020-08-31 | 2022-04-01 | 重庆长安新能源汽车科技有限公司 | Punching sheet structure and permanent magnet synchronous motor |
| CN113014009B (en) * | 2021-03-08 | 2022-11-01 | 哈尔滨工业大学 | Permanent magnet series-parallel type variable magnetic circuit adjustable magnetic flux motor |
| CN113517770B (en) * | 2021-07-01 | 2023-08-29 | 河南通宇新源动力有限公司 | Multi-combination type permanent magnet motor rotor punching sheet and permanent magnet motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109586442A (en) * | 2018-12-13 | 2019-04-05 | 中车株洲电机有限公司 | A kind of motor and its interchangeable rotor punching |
| CN208767862U (en) * | 2018-08-30 | 2019-04-19 | 沈阳工业大学 | A kind of few permanent magnet high-performance permanent magnet reluctance-synchronous machine |
| CN209267298U (en) * | 2019-01-25 | 2019-08-16 | 珠海英搏尔电气股份有限公司 | A kind of magneto, rotor and rotor punching |
| CN210608713U (en) * | 2019-11-20 | 2020-05-22 | 安徽恒磁磁电有限公司 | Novel magnetic shoe |
-
2020
- 2020-06-15 CN CN202010542039.1A patent/CN111600408B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208767862U (en) * | 2018-08-30 | 2019-04-19 | 沈阳工业大学 | A kind of few permanent magnet high-performance permanent magnet reluctance-synchronous machine |
| CN109586442A (en) * | 2018-12-13 | 2019-04-05 | 中车株洲电机有限公司 | A kind of motor and its interchangeable rotor punching |
| CN209267298U (en) * | 2019-01-25 | 2019-08-16 | 珠海英搏尔电气股份有限公司 | A kind of magneto, rotor and rotor punching |
| CN210608713U (en) * | 2019-11-20 | 2020-05-22 | 安徽恒磁磁电有限公司 | Novel magnetic shoe |
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| CN111600408A (en) | 2020-08-28 |
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