CN114142702A - Permanent magnet linear motor - Google Patents
Permanent magnet linear motor Download PDFInfo
- Publication number
- CN114142702A CN114142702A CN202111233697.3A CN202111233697A CN114142702A CN 114142702 A CN114142702 A CN 114142702A CN 202111233697 A CN202111233697 A CN 202111233697A CN 114142702 A CN114142702 A CN 114142702A
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- Prior art keywords
- permanent magnet
- outer stator
- stator
- lamination
- linear motor
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- 238000003475 lamination Methods 0.000 claims abstract description 51
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000004804 winding Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims description 14
- 238000010030 laminating Methods 0.000 claims description 13
- 238000013178 mathematical model Methods 0.000 claims description 10
- 230000000903 blocking effect Effects 0.000 claims description 8
- 238000004590 computer program Methods 0.000 claims description 4
- 229910000976 Electrical steel Inorganic materials 0.000 abstract description 3
- 230000004907 flux Effects 0.000 abstract description 3
- 230000001629 suppression Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract 1
- 230000007547 defect Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/04—Machines with one rotor and two stators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
- H02K1/165—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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/17—Stator cores with permanent magnets
-
- 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
- H02K1/2726—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of a single magnet or two or more axially juxtaposed single magnets
- H02K1/2733—Annular magnets
-
- 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
- H02K1/278—Surface mounted magnets; Inset magnets
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Linear Motors (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The application discloses a permanent magnet linear motor. The permanent magnet linear motor comprises an inner stator, a permanent magnet rotor and an outer stator which are arranged in sequence from inside to outside; the outer stator comprises an outer stator iron core and an armature winding wound on the outer stator iron core; an inner air gap layer is formed between the inner stator and the permanent magnet rotor; an outer air gap layer is formed between the permanent magnet rotor and the outer stator; the inner stator adopts a circumferential block lamination and a radial layered structure, the outer stator core adopts a mixed lamination structure, and the armature winding adopts a centralized winding. The utility model provides a mixed lamination structure that permanent magnet linear electric motor adopted can increase the effective area of iron core, improves the fold coefficient of pressure and the inside air gap flux density of motor of silicon steel sheet to better suppression motor inside eddy current loss reduces the temperature rise and reaches the effect that improves motor output performance.
Description
Technical Field
The application relates to the technical field of motors, in particular to a permanent magnet linear motor.
Background
The permanent magnet linear motor is widely applied to various power generation systems such as a space stirling power generation system. The permanent magnet linear motor in the prior art has some defects, for example, the defects of low iron core utilization rate, poor heat dissipation performance, serious eddy current loss and the like, and the defects cause that the output performance of the permanent magnet linear motor in the prior art is not ideal and cannot well meet the requirement of practical application, which is a technical problem to be solved at present.
Disclosure of Invention
The application aims at providing a permanent magnet linear motor. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
According to an aspect of an embodiment of the present application, there is provided a permanent magnet linear motor, including an inner stator, a permanent magnet rotor, and an outer stator, which are sequentially arranged from inside to outside; the outer stator comprises an outer stator core and an armature winding wound on the outer stator core; an inner air gap layer is formed between the inner stator and the permanent magnet rotor; an outer air gap layer is formed between the permanent magnet rotor and the outer stator;
the inner stator adopts a circumferential block lamination and a radial layered structure, the outer stator core adopts a mixed lamination structure, and the armature winding adopts a centralized winding.
In some embodiments of the present application, the inner stator comprises at least two laminations in a radial direction and at least two segments in a circumferential direction.
In some embodiments of the present application, the outer stator core comprises an outer stator yoke and two outer stator teeth; the armature windings are positioned in a space surrounded by the outer stator yoke part and the two outer stator tooth parts and distributed in a centralized winding manner; the outer stator tooth part adopts a structure of circumferential block lamination and axial lamination.
In some embodiments of the present application, the outer stator yoke is in a radially layered lamination configuration.
In some embodiments of the present application, the outer stator teeth include a stator spur region and a stator pole shoe region assembled together, the stator pole shoe region being in a circumferentially segmented lamination configuration.
In some embodiments of the present application, the stator spur region is in the form of an axially layered lamination.
In some embodiments of the present application, the permanent magnet mover comprises a support member and at least one permanent magnet pair; the permanent magnet pair includes an N-pole magnet and an S-pole magnet.
In some embodiments of the present application, the permanent magnet is a tile-shaped structure and is formed by splicing in the circumferential direction.
According to another aspect of the embodiments of the present application, there is provided a method for determining the number of circumferential blocking blocks, which is used for determining the number of circumferential blocking blocks in an outer stator straight tooth region or a stator pole shoe region of a permanent magnet linear motor; the permanent magnet linear motor is any one of the permanent magnet linear motors; the method comprises the following steps:
considering each block of the circumferential blocks as a rectangle, considering the difference between the inner radius and the outer radius of each block as equal, and establishing a circumferential block mathematical model;
equally dividing the outer stator straight tooth region or the outer stator pole shoe region into a plurality of parts along the circumferential direction, wherein the occupied area of each part is a sector region, regarding the iron core laminated region corresponding to the sector region as a rectangle, and calculating the area of each sector region and the area of the corresponding iron core laminated region by using the circumferential block mathematical model;
calculating the lamination coefficient of the circumferential segmented lamination according to the area of the sector area and the area of the corresponding iron core lamination area;
calculating according to the stacking coefficient of the circumferential block lamination to obtain the relation between the block number and the stacking coefficient of the motor;
and determining the number of blocks corresponding to the preset motor laminating coefficient according to the preset motor laminating coefficient and the relation between the number of blocks and the motor laminating coefficient.
According to another aspect of embodiments of the present application, there is provided a computer-readable storage medium having a computer program stored thereon, the program being executed by a processor to implement the method for determining the number of circumferential block segments described above.
The technical scheme provided by one aspect of the embodiment of the application can have the following beneficial effects:
the utility model provides a permanent magnet linear motor, its outer stator core adopts mixed lamination, can increase the effective area of iron core, improves the fold pressure coefficient and the inside magnetic flux density of motor of silicon steel sheet to better suppression motor inside eddy current loss promotes the output performance of motor, can satisfy practical application's needs well.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the embodiments of the application, or may be learned by the practice of the embodiments. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be 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 some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 shows a schematic cross-sectional structural view of a permanent magnet linear motor of an embodiment of the present application;
fig. 2 shows a flow chart of a method for determining the number of circumferentially partitioned blocks of a permanent magnet linear motor according to an embodiment of the present application;
FIG. 3 is a schematic diagram illustrating the division of regions in one embodiment of the embodiment shown in FIG. 2;
FIG. 4 shows a schematic diagram of a computer-readable storage medium of an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. 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 application.
It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As shown in fig. 1, an embodiment of the present application provides a permanent magnet linear motor, which includes an inner stator 1, a permanent magnet rotor 3, and an outer stator 5, which are sequentially arranged from inside to outside. The outer stator 5 includes an outer stator core and an armature winding 53 wound around the outer stator core. The permanent magnet mover 3 is located between the inner stator 1 and the outer stator 5.
An inner air gap layer 2 is formed between the inner stator 1 and the permanent magnet mover 3. An outer air gap layer 4 is formed between the permanent magnet mover 3 and the outer stator 5. The outer stator core adopts a hybrid lamination structure.
The direction indicated by the straight arrow a in fig. 1 is the axial direction, the direction indicated by the straight arrow B is the radial direction, and the direction indicated by the curved arrow C is the circumferential direction. The inner stator 1 adopts a structure of circumferential block lamination and radial lamination, and includes at least two layers of lamination in the radial direction and at least two blocks in the circumferential direction, for example, the structure of radial two-layer lamination and circumferential four-block lamination is adopted in this embodiment.
The outer stator core includes an outer stator yoke portion 52 and two outer stator teeth portions 51. The armature winding 53 is located in a space surrounded by the outer stator yoke 52 and the two outer stator teeth 51.
The outer stator teeth 51 are of a circumferentially segmented lamination and an axially segmented lamination, and the outer stator yoke 52 is of a radially segmented lamination.
The outer stator teeth 51 comprise a stator spur zone 511 and a stator pole shoe zone 512, the stator spur zone 511 and the stator pole shoe zone 512 fitting together to form the outer stator teeth 51. A portion of the stator pole shoe region 512 is embedded in an internal groove of the stator spur region 511. The stator pole shoe region 512 is a circumferentially segmented lamination. The stator spur region 511 is in the form of an axially layered lamination.
The outer stator armature 53 has a concentrated winding structure, and the windings are fixed by a resin bracket.
The permanent magnet mover 3 comprises a support member (not shown in the drawings) and at least one permanent magnet pair. Each permanent magnet pair includes two permanent magnets 31, one of the two permanent magnets 31 being an N-pole magnet and the other being an S-pole magnet. The support member is made of stainless steel which is a non-magnetic material, and the permanent magnet 31 is embedded in the groove of the support member. The permanent magnet 31 is circular. The permanent magnet 31 is a structure of circumferentially segmented laminations. Specifically, the permanent magnet 31 is formed by a plurality of tile-shaped structural units which are tightly spliced into a circular ring shape in the circumferential direction.
The permanent magnet 31 can be magnetized by adopting a radial magnetizing mode and also can be magnetized by adopting a Halbach magnetizing mode. In the radial magnetizing mode, the permanent magnets are alternately arranged in sequence in a vertical upward and vertical downward magnetizing direction; in the Halbach magnetizing mode, the magnetizing direction of the permanent magnet sequentially from left to right: horizontally to the right, 45 degrees to the upper right corner, vertically upwards, 45 degrees to the upper left corner and horizontally to the left; the magnetizing direction of the permanent magnet of the other Halbach irregular permanent magnet array sequentially comprises from left to right: horizontal right, 45 degrees to the lower right corner, vertical down, 45 degrees to the lower left corner, and horizontal left.
In some embodiments, the permanent magnet 31 may be made of neodymium iron boron material.
In some embodiments, the armature windings of the outer stator are concentrated.
In an embodiment of the present application, the inner stator 1 is a circumferential lamination structure, and the number of lamination layers is determined according to an actual radius ratio of the motor.
Each block of the circumferential blocks of the outer stator straight tooth area 511 or the stator pole shoe area 512 is a silicon steel sheet.
The permanent magnet linear motor of the embodiment of the application has the advantages that the outer stator core of the permanent magnet linear motor adopts a mixed lamination structure, the lamination coefficient can be increased, the magnetic density is improved, the energy loss is reduced, the heat dissipation performance is improved, the output performance of the motor is improved, and the requirements of practical application can be well met.
In addition, the inner stator 1 is in a structure of circumferential block lamination and radial lamination, and the permanent magnet 31 is in a structure of circumferential block lamination, so that the utilization rate of an iron core can be further improved, the air gap flux density is increased, the eddy current loss is reduced, the heat dissipation performance is improved, and the output performance of the motor is improved.
As shown in fig. 2, another embodiment of the present application provides a method for determining the number of circumferential block segments of an outer stator spur tooth region or a stator pole shoe region of a permanent magnet linear motor; the permanent magnet linear motor can be the permanent magnet linear motor in any one of the above embodiments; the method comprises the following steps:
step S10, regarding each block of the circumferential blocks as a rectangle, regarding the difference between the inner radius and the outer radius of each block as equal, and establishing a circumferential block mathematical model; the circumferential blocking mathematical model may be, for example, a trigonometric function relationship model, or may be another mathematical model for circumferential blocking;
step S20, equally dividing the outer stator straight tooth area or the outer stator pole shoe area into a plurality of parts along the circumferential direction, wherein the area occupied by each part is a sector area, regarding the iron core laminated area corresponding to the sector area as a rectangle, and calculating the area of each sector area and the area of the corresponding iron core laminated area by using the circumferential block mathematical model;
step S30, calculating the lamination coefficient of the circumferential segmented lamination according to the area of the sector area and the area of the corresponding iron core lamination area;
step S40, calculating according to the stacking coefficient of the circumferential blocking lamination to obtain the relation between the number of blocks and the stacking coefficient of the motor;
and step S50, determining the number of blocks corresponding to the preset motor laminating coefficient according to the preset motor laminating coefficient and the relation between the number of blocks and the motor laminating coefficient.
Specifically, in a certain embodiment, the determining the number of circumferential blocking blocks of the outer stator straight tooth region 511 or the stator pole shoe region 512 by using the above method specifically includes the following steps:
1) the blocks are determined to be rectangular, the difference between the inner radius and the outer radius of the blocks is determined to be equal, and a circumferential block mathematical model is established; the circumferential block mathematical model is a trigonometric function relation model;
2) equally dividing the circumference of the outer stator straight tooth region 511 or the outer stator pole shoe region 512 into k parts, as shown in fig. 3, wherein the occupied area of each part is a fan-shaped region OCD, the iron core laminated region is approximately rectangular ABHG, the inter-block region is ACG and BHD, and deriving the area of each fan-shaped region and the actual area of the iron core region by using a trigonometric function relation model;
3) calculating the laminating coefficient of the circumferential segmented laminations according to the area of the sector area and the area of the actual iron core area;
4) calculating according to the stacking coefficient of the circumferential block lamination to obtain the relation between the number of blocks and the stacking coefficient of the motor;
5) and determining the number of the blocks corresponding to the preset motor laminating coefficient according to the preset motor laminating coefficient and the relationship between the number of the blocks and the motor laminating coefficient.
In some embodiments, the finite element analysis software may employ Ansoft software or Jmag software.
Another embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored, the program being executed by a processor to implement the method for determining the number of circumferential block segments of any of the above embodiments. Referring to fig. 4, a computer-readable storage medium is shown as an optical disc 20, on which a computer program (i.e., a program product) is stored, which when executed by a processor, performs the method provided by any of the foregoing embodiments. It should be noted that examples of the computer-readable storage medium may also include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory, or other optical and magnetic storage media, which are not described in detail herein. The computer-readable storage medium provided by the embodiment of the present application and the method provided by the embodiment of the present application have the same advantages as the method adopted, executed or implemented by the application program stored in the computer-readable storage medium.
It should be noted that:
the above-mentioned embodiments only express the embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.
Claims (10)
1. A permanent magnet linear motor is characterized by comprising an inner stator, a permanent magnet rotor and an outer stator which are sequentially arranged from inside to outside; the outer stator comprises an outer stator core and an armature winding wound on the outer stator core; an inner air gap layer is formed between the inner stator and the permanent magnet rotor; an outer air gap layer is formed between the permanent magnet rotor and the outer stator;
the outer stator core is of a hybrid laminated structure.
2. The permanent magnet linear motor of claim 1, wherein the inner stator has a structure of circumferential segmented lamination and radial layered lamination, and comprises at least two layers of lamination in a radial direction and at least two segments in a circumferential direction.
3. The permanent magnet linear motor of claim 1 wherein the outer stator core comprises an outer stator yoke portion and two outer stator teeth portions; the armature windings are positioned in a space surrounded by the outer stator yoke part and the two outer stator tooth parts and distributed in a centralized winding manner; the outer stator tooth part adopts a structure of circumferential block lamination and axial lamination.
4. The permanent magnet linear motor of claim 3 wherein the outer stator yoke is in a radially laminated stack.
5. The permanent magnet linear motor of claim 3 wherein the outer stator teeth comprise a stator spur tooth region and a stator pole shoe region assembled together, the stator pole shoe region being in a circumferentially segmented laminated configuration.
6. The permanent magnet linear motor of claim 5 wherein the stator spur region is in an axially layered lamination configuration.
7. The permanent magnet linear motor of claim 1 wherein the permanent magnet mover comprises a support member and at least one permanent magnet pair; the permanent magnet pair includes an N-pole magnet and an S-pole magnet.
8. The permanent magnet linear motor of claim 1, wherein the permanent magnets are tile-shaped structures and are circumferentially split.
9. A method for determining the number of circumferential blocking blocks is characterized by being used for determining the number of circumferential blocking blocks in an outer stator straight tooth area or a stator pole shoe area of a permanent magnet linear motor; the permanent magnet linear motor is the permanent magnet linear motor of any one of claims 1-8; the method comprises the following steps:
considering each block of the circumferential blocks as a rectangle, considering the difference between the inner radius and the outer radius of each block as equal, and establishing a circumferential block mathematical model;
equally dividing the outer stator straight tooth region or the outer stator pole shoe region into a plurality of parts along the circumferential direction, wherein the occupied area of each part is a sector region, regarding the iron core laminated region corresponding to the sector region as a rectangle, and calculating the area of each sector region and the area of the corresponding iron core laminated region by using the circumferential block mathematical model;
calculating the lamination coefficient of the circumferential segmented lamination according to the area of the sector area and the area of the corresponding iron core lamination area;
calculating according to the stacking coefficient of the circumferential block lamination to obtain the relation between the block number and the stacking coefficient of the motor;
and determining the number of blocks corresponding to the preset motor laminating coefficient according to the preset motor laminating coefficient and the relation between the number of blocks and the motor laminating coefficient.
10. A computer-readable storage medium, on which a computer program is stored, characterized in that the program is executed by a processor to implement the method as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111233697.3A CN114142702B (en) | 2021-10-22 | 2021-10-22 | Permanent magnet linear motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111233697.3A CN114142702B (en) | 2021-10-22 | 2021-10-22 | Permanent magnet linear motor |
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| Publication Number | Publication Date |
|---|---|
| CN114142702A true CN114142702A (en) | 2022-03-04 |
| CN114142702B CN114142702B (en) | 2023-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111233697.3A Active CN114142702B (en) | 2021-10-22 | 2021-10-22 | Permanent magnet linear motor |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2662962A2 (en) * | 2012-05-11 | 2013-11-13 | Waltec Maschinen GmbH | Linear motor designed according to the longitudinal flow principle |
| CN110112876A (en) * | 2019-05-17 | 2019-08-09 | 东南大学 | A kind of controllable transverse magnetic field modulation linear electric generator |
| CN110611384A (en) * | 2019-09-12 | 2019-12-24 | 华中科技大学 | Magnetic circuit decomposition type vernier permanent magnet motor |
| CN112994403A (en) * | 2021-04-26 | 2021-06-18 | 合肥工业大学 | Primary structure of low-eddy-current-loss tooth-groove-type cylindrical linear motor |
-
2021
- 2021-10-22 CN CN202111233697.3A patent/CN114142702B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2662962A2 (en) * | 2012-05-11 | 2013-11-13 | Waltec Maschinen GmbH | Linear motor designed according to the longitudinal flow principle |
| CN110112876A (en) * | 2019-05-17 | 2019-08-09 | 东南大学 | A kind of controllable transverse magnetic field modulation linear electric generator |
| CN110611384A (en) * | 2019-09-12 | 2019-12-24 | 华中科技大学 | Magnetic circuit decomposition type vernier permanent magnet motor |
| CN112994403A (en) * | 2021-04-26 | 2021-06-18 | 合肥工业大学 | Primary structure of low-eddy-current-loss tooth-groove-type cylindrical linear motor |
Non-Patent Citations (1)
| Title |
|---|
| 侯茂忠等: "直驱永磁风力发电机定子扇形块铁心压装", 《上海大中型电机》 * |
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| CN114142702B (en) | 2023-05-16 |
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Application publication date: 20220304 Assignee: Heilongjiang Shengkai Power Equipment Co.,Ltd. Assignor: Beijing University of Civil Engineering and Architecture Contract record no.: X2023980043041 Denomination of invention: Permanent magnet linear motor Granted publication date: 20230516 License type: Common License Record date: 20231009 |