CN115224906A - Cylindrical synchronous reluctance linear motor - Google Patents
Cylindrical synchronous reluctance linear motor Download PDFInfo
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- CN115224906A CN115224906A CN202210913376.6A CN202210913376A CN115224906A CN 115224906 A CN115224906 A CN 115224906A CN 202210913376 A CN202210913376 A CN 202210913376A CN 115224906 A CN115224906 A CN 115224906A
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 16
- 230000004888 barrier function Effects 0.000 claims abstract description 64
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 51
- 238000004804 winding Methods 0.000 claims description 32
- 239000000696 magnetic material Substances 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims description 3
- 235000012771 pancakes Nutrition 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 4
- 229910052742 iron Inorganic materials 0.000 abstract description 2
- 239000004020 conductor Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000006698 induction Effects 0.000 description 4
- 239000011295 pitch Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000027311 M phase Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
- H02K41/031—Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
- H02K11/33—Drive circuits, e.g. power electronics
-
- 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
-
- 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
- H02K3/28—Layout of windings or of connections between windings
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Linear Motors (AREA)
Abstract
The invention discloses a cylindrical synchronous reluctance linear motor which comprises a secondary structure and a primary structure, wherein the primary structure is arranged on the outer side of the secondary structure, and the primary structure is arranged in a sliding manner relative to the secondary structure; the secondary structure comprises a secondary supporting backbone and a plurality of unit magnetic circuits sequentially arranged along the length direction of the secondary supporting backbone, each unit magnetic circuit comprises an annular magnetic barrier, a first secondary iron core group formed by two butted first secondary iron cores and a secondary magnetic barrier group formed by two butted second secondary iron barriers, and the first secondary iron core group, the secondary magnetic barrier group and the annular magnetic barriers are sequentially arranged on the outer side of the secondary magnetic barrier group from inside to outside in a ferrule mode; the primary structure comprises a primary outer cylinder and a primary core, wherein the primary core is arranged on the inner side of the primary outer cylinder, and the primary core is positioned on the outer side of the unit magnetic circuit. Compared with the prior art, the invention has the advantages of simple processing, lower material cost, lower cost, strong supporting structure and high rated thrust.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a cylindrical synchronous reluctance linear motor.
Background
For a long-stroke linear motor, the permanent magnet is embedded in the secondary of the linear motor and the permanent magnet is attached to the secondary, so that a large amount of permanent magnet materials are consumed, the manufacturing cost is high, and the magnetic secondary structure is easy to attract dust and scrap iron in the environment to increase the abrasion of the secondary shaft in the secondary structure.
The existing linear motor is divided into a linear induction motor and a linear reluctance motor, the thrust of the linear induction motor is 17-20% of that of the linear reluctance motor, and under the limitation of the highest frequency of a power supply, the thrust of the linear induction motor is gradually reduced along with the increase of the speed; although the linear reluctance motor has larger thrust than the linear induction motor, the linear reluctance motor has larger two-axis inductance, so that the power factor of the linear reluctance motor is lower, and the starting current is larger.
Accordingly, the present inventors have conducted extensive studies and have made the present invention.
Disclosure of Invention
The invention aims to provide a cylindrical synchronous reluctance linear motor which is low in cost, low in starting current and high in thrust.
In order to achieve the above purpose, the solution of the invention is as follows:
a cylindrical synchronous reluctance linear motor comprises a secondary structure and a primary structure, wherein the primary structure is arranged on the outer side of the secondary structure, and the primary structure is arranged in a sliding mode relative to the secondary structure; the secondary structure comprises a secondary supporting backbone and a plurality of unit magnetic circuits which are sequentially arranged along the length direction of the secondary supporting backbone, and annular spacing magnetic barriers are respectively arranged between every two adjacent unit magnetic circuits; each unit magnetic circuit comprises an annular magnetic barrier, two butted first secondary iron cores and two butted second secondary magnetic barriers, in each unit magnetic circuit, the two first secondary iron cores form a first secondary iron core group together, the two second secondary magnetic barriers form a second secondary magnetic barrier group together, the first secondary iron core group is sleeved on the outer side of the second supporting backbone, the second secondary iron core group is sleeved on the outer side of the first secondary iron core group, and the annular magnetic barrier is sleeved on the outer side of the second secondary magnetic barrier group;
the primary structure comprises a primary outer cylinder and a primary core, primary bearings are respectively arranged at two ends of the primary outer cylinder, and the two primary bearings are respectively arranged at the outer sides of the unit magnetic circuits; the primary core comprises a plurality of primary toothed rings and a plurality of primary windings, the primary toothed rings are sequentially arranged on the inner side of the primary outer cylinder at intervals along the length direction of the primary outer cylinder, and the primary windings are arranged between every two adjacent primary toothed rings.
The first secondary iron core group and the secondary magnetic barrier group in each unit magnetic circuit form a repeating unit, at least one repeating unit is arranged in each unit magnetic circuit, and the annular magnetic barrier is positioned outside the outermost repeating unit.
Each first secondary iron core is an annular iron core, and the longitudinal section of each first secondary iron core is T-shaped.
Each secondary magnetic barrier is mainly made of a non-magnetic material, and the longitudinal section of each secondary magnetic barrier is T-shaped.
Each annular magnetic barrier is of a closed annular structure.
The primary structure further comprises two primary end covers, the two primary end covers correspond to the two primary bearings one to one respectively, the two primary end covers are respectively arranged at the corresponding ends of the primary outer cylinder in a covering mode, and the two primary bearings are located in the covering range of the corresponding primary end covers respectively.
Each primary winding is a pancake winding.
And annular grooves are formed between every two adjacent primary gear rings of the primary outer cylinder, and each primary winding is assembled with each annular groove in a one-to-one correspondence mode.
One end of each primary winding is connected with the output end of the half-bridge circuit, and the other end of each primary winding is connected with a neutral point N.
After adopting the structure, the invention has the following beneficial effects:
1. the secondary structure is in a cylindrical structure, all the components in the secondary structure are assembled in a ferrule mode, the secondary iron cores in all the unit magnetic circuits in the secondary structure are separated by adopting magnetic barriers, namely the iron cores in the secondary structure are separated by adopting the magnetic barriers, so that the iron cores in the secondary structure are not directly connected with a magnetic conductive material, the magnetic leakage is reduced, the thrust is large, and the secondary supporting backbone directly acts as an axis, so that the overall volume of the secondary structure is small, and the volume of the secondary structure is reduced; in the combined primary structure, each primary toothed ring and each primary winding are respectively pressed into the primary outer cylinder, so that each primary winding is ensured to have no edge end, the winding utilization rate is high, the mounting structure is simple, and meanwhile, no additional machine shell and support are needed; compared with the prior art, the invention has the advantages of simple processing, lower material cost, lower cost, strong supporting structure, low starting current and large rated thrust.
2. The half-bridge circuit outputs current to each primary winding to generate an armature magnetic field, the armature magnetic field generates suction force on each secondary iron core to guide the secondary structure to form thrust, so that the primary outer cylinder linearly slides relative to the secondary structure, and the half-bridge circuit outputs current to the primary structure, so that no current is generated in the secondary structure, the loss of the secondary structure is reduced, and the working efficiency of the invention is improved.
3. The invention adopts the primary winding arranged in the slots to excite the m-phase motor in the slots, and can still operate at the power level of (m-1)/m after one-phase fault occurs, thereby improving the fault-tolerant operation margin.
Drawings
FIG. 1 is a schematic structural view of a linear motor according to the present invention;
FIG. 2 is a schematic structural diagram of a unit magnetic circuit in the linear motor of the present invention;
FIG. 3 is a schematic diagram of the circuit connections between the half-bridge circuit and the primary windings of the present invention;
FIG. 4a is a schematic diagram of the relationship between thrust and speed in a conventional linear asynchronous motor;
FIG. 4b is a schematic diagram of the thrust versus speed relationship of the present invention.
In the figure:
100-a secondary structure; 1-a secondary support backbone;
11-a secondary end cap; 2-unit magnetic circuit;
21-a first secondary core; 22-a secondary magnetic barrier;
23-a second secondary core; 24-an annular magnetic barrier;
200-primary structure; 31-a primary outer barrel;
32-a primary bearing; 33-primary ring gear;
34-a primary winding; 35-primary end cap;
40-annular spacer barriers.
Detailed Description
In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.
A cylindrical synchronous reluctance linear motor is shown in figures 1-3 and comprises a secondary structure 100 and a primary structure 200, wherein the secondary structure 100 comprises a secondary support backbone 1 and a plurality of unit magnetic circuits 2, for convenience of description, the position of the axis of the secondary support backbone 1 is taken as the inside, the side, away from the axis of the secondary support backbone 1, is taken as the outside, each unit magnetic circuit 2 is positioned at the outside of the secondary support backbone 1, each unit magnetic circuit 2 is sequentially arranged along the axial direction of the secondary support backbone 1, an annular interval magnetic barrier 40 is arranged between every two adjacent unit magnetic circuits 2, and each annular interval magnetic barrier is respectively sleeved outside the secondary support backbone 1; each unit magnetic circuit 2 comprises two butted first secondary iron cores 21, two butted second magnetic barriers 22 and an annular magnetic barrier 24, the two butted first secondary iron cores 21 form a first secondary iron core group, the two butted second magnetic barriers 22 form a second magnetic barrier group, the second magnetic barrier group is arranged on the outer side of the first secondary iron core group, and the annular magnetic barrier 24 is nested on the outer side of the second magnetic barrier group. The primary structure 200 comprises a primary outer cylinder 31 and a primary core, wherein the primary outer cylinder 31 is sleeved outside the secondary support backbone 1, the primary outer cylinder 31 and the secondary support backbone 1 are coaxially arranged, primary bearings 32 are respectively installed at two ends of the primary outer cylinder 31, the secondary support backbone 1 is installed in the two primary bearings 32, and the two primary bearings 32 are respectively located at the outer sides of the unit magnetic circuits; the primary core comprises a plurality of primary toothed rings 33 and a plurality of primary windings 34, each primary toothed ring 33 is sequentially arranged on the inner side wall of the primary outer cylinder 31 at intervals along the axial direction of the primary outer cylinder 31, and the primary windings 34 are arranged between every two adjacent primary toothed rings.
For convenience of description, the orientation shown in fig. 1 is the reference direction of the present invention.
Specifically, the structure of each unit magnetic circuit 2 is the same, so that, taking one unit magnetic circuit 2 as an example for explanation, the two first secondary cores 21 are both conventional annular cores, and the longitudinal sections of the two first secondary cores 21 are both T-shaped, wherein the two first secondary cores 21 are formed by nesting a plurality of conventional C-shaped cores, and the two first secondary cores 21 are oppositely arranged, and the two first secondary cores 21 are butted with each other to make the longitudinal section be i-shaped; the structure of the two secondary cores 23 is the same as that of the first secondary core 21, and therefore, the description thereof will be omitted, and the first and second secondary core sets are used to provide a main magnetic path. In this embodiment, the two first secondary cores 21 and the two second secondary cores 23 are made of conventional materials with good magnetic conductivity, such as 10 # steel or a3 steel.
The annular magnetic barrier 24 and the secondary magnetic barrier 22 are made of a non-magnetic conductive material, and the non-magnetic conductive material is an existing conventional non-magnetic conductive material, and will not be described herein; the sections of the two secondary magnetic barriers 22 are both in a T shape, the two secondary magnetic barriers 22 are oppositely arranged, the two secondary magnetic barriers 22 are mutually butted to enable the sections to be in an I shape, and a secondary magnetic barrier group formed by the two secondary magnetic barriers 22 is sleeved outside the first secondary iron core group to fill gaps of the first secondary iron core group; the annular magnetic barrier 24 is of an annular structure, and the annular magnetic barrier 24 is nested outside the secondary magnetic barrier group so as to enable the surface of the secondary structure to be flat; the annular magnetic barrier 24 and the secondary magnetic barrier 22 thus provide magnetic circuit stratification.
Further, in this embodiment, taking the unit magnetic circuit further including two second secondary iron cores 23 in butt joint as an example, the two second secondary iron cores 23 are in butt joint to form a second secondary iron core group, so that the secondary magnetic barrier group is disposed on the outer side of the first secondary iron core group, the second secondary iron core group is disposed on the outer side of the secondary magnetic barrier group, and the annular magnetic barrier 24 is nested on the outer side of the second secondary iron core group; the annular magnetic barrier 24 is used to fill the gap of the second secondary core and to smooth the outer surface of the secondary structure. In each unit magnetic circuit in the embodiment, the first secondary iron core group and the secondary magnetic barrier group are provided with a plurality of repeating units according to the structure of the pole pitch of the motor.
Further, the two ends of the secondary support backbone 1 are respectively covered with a secondary end cover 11, the secondary end covers 11 are both annular structures, and the outer side walls of the secondary end covers 11 are both flush with the outer side walls of the secondary structure 100. The annular spacing magnetic barriers 40 are also arranged between the two-stage end cover 11 and the adjacent unit magnetic circuits.
In secondary structure 100, each secondary iron core group in each unit magnetic circuit is sequentially assembled by using a ferrule, and each adjacent secondary iron core group is separated by using a magnetic barrier, so that non-magnetic conduction connection is formed between adjacent layers in the secondary structure, magnetic leakage is smaller, thrust is larger, magnetic resistance change is smoother, and fluctuation of thrust generated in the secondary structure is small.
In the primary structure 200, the primary outer cylinder 31 is cylindrical, each primary toothed ring 33 is a closed annular structure, and a plurality of primary toothed rings 33 are sequentially and uniformly arranged at intervals along the axial direction of the primary outer cylinder 31, wherein the interval between every two adjacent primary toothed rings 33 is arranged on the inner side of the primary outer cylinder 31 according to the conventional designed pitch, so that the primary magnetic path is provided by the primary outer cylinder 31 and each primary toothed ring 33 together. An annular groove is formed on the inner side of the primary outer cylinder 31 corresponding to the space between every two adjacent primary toothed rings 33, namely, a plurality of annular grooves are formed, each primary winding 34 is respectively arranged in the annular groove, and each primary winding 34 in the embodiment is made of a plurality of pie-shaped coils formed by winding copper wires. In the present embodiment, the primary outer cylinder 31 and each primary toothed ring 33 are made of a conventional magnetically conductive material, such as 10 steel or a3 steel.
Further, the primary structure 200 further includes two primary end covers 35, two ends of the primary end covers 35 and two ends of the primary outer cylinder 31 are respectively covered in one-to-one correspondence, the two primary end covers 35 are respectively disposed with the two primary bearings 32 in one-to-one correspondence, the two primary bearings 32 are respectively mounted on the inner sides of the corresponding primary end covers 35, and the two primary bearings 32 are respectively located in the covering range of the corresponding primary end cover 35, so that the two primary end covers 35 are respectively adopted to press the corresponding primary bearings 32 on the corresponding ends of the primary outer cylinder 31. In this embodiment, the two primary end caps 35 are both ring-shaped structures made of conventional non-magnetic materials; both primary bearings 32 are linear bearings made of conventional non-magnetically conductive material, such as copper bushings or linear sliding bearings.
In the primary structure 200, the primary toothed ring 33 and the primary windings 34 are respectively arranged in the primary outer cylinder 31, and the primary outer cylinder 31 can conduct magnetism, so that the installation structure is simple, and no additional shell or support is needed.
In the present invention, as shown in fig. 3, a first end of each primary winding 34 is connected to an output end of the half-bridge circuit, and a second end of each primary winding 34 is connected to a neutral point N; the power supply positive end and the power supply negative end of the half-bridge circuit are respectively and correspondingly connected with the power supply positive end and the power supply negative end of the same direct current bus. In this embodiment, the half-bridge circuit is a conventional half-bridge circuit, and in this embodiment, the half-bridge circuit is formed by using devices such as IGBTs and MOSFETs. Thus, the power supply with any number of poles and any waveform is supplied to the primary winding 34 by controlling the on/off of the upper arm and the lower arm of the half-bridge circuit during operation.
When the invention works, the half-bridge circuit outputs current to each primary winding 34, so that each primary winding 34 jointly generates an armature magnetic field, the armature magnetic field generates attraction force on the secondary iron core group and guides the secondary structure 100 to form thrust, and therefore, the primary structure 100 linearly moves along the secondary support backbone 1 relative to the secondary structure.
In the present embodiment, for example, the invention is described by taking 9 annular grooves of the primary structure corresponding to 10 unit pole pitches in the secondary structure as an example, and taking the outer diameter of the primary outer barrel 31 as 150mm, 230mm long, 27mm pole pitches, and 50Hz of power supply frequency, and taking current 10A as an example, wherein the air gap of the invention is 1mm, and the air gap refers to a part formed by the interval between the primary structure and the secondary structure; thus, the relation between the thrust and the speed can be obtained through electromagnetic simulation as shown in fig. 4b, which is explained by using a linear asynchronous motor with the same size as the linear asynchronous motor in the embodiment, the relation between the thrust and the speed can be obtained through electromagnetic simulation as shown in fig. 4a, and it can be known from comparison between fig. 4a and fig. 4b that the linear asynchronous motor has larger thrust and is more stable than the linear asynchronous motor with the same size.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made within the scope of the claims of the present invention should fall within the scope of the claims of the present invention.
Claims (9)
1. The utility model provides a synchronous reluctance linear electric motor of cylinder type which characterized in that: the device comprises a secondary structure and a primary structure, wherein the primary structure is arranged on the outer side of the secondary structure, and the primary structure is arranged in a sliding manner relative to the secondary structure; the secondary structure comprises a secondary supporting backbone and a plurality of unit magnetic circuits which are sequentially arranged along the length direction of the secondary supporting backbone, and annular spacing magnetic barriers are respectively arranged between every two adjacent unit magnetic circuits; each unit magnetic circuit comprises an annular magnetic barrier, two butted first secondary iron cores, two butted second secondary iron cores and two butted secondary magnetic barriers; in each unit magnetic circuit, the two first secondary iron cores form a first secondary iron core group together, the two second secondary iron cores form a second secondary iron core group together, the two secondary magnetic barriers form a secondary magnetic barrier group together, the first secondary iron core group is sleeved on the outer side of the secondary support backbone, the secondary magnetic barrier group is sleeved on the outer side of the first secondary iron core group, the second secondary iron core group is sleeved on the outer side of the secondary magnetic barrier group, and the annular magnetic barrier is sleeved on the outer side of the second secondary iron core group;
the primary structure comprises a primary outer cylinder and a primary core, primary bearings are respectively arranged at two ends of the primary outer cylinder, and the two primary bearings are respectively arranged at the outer sides of the unit magnetic circuits; the primary core comprises a plurality of primary toothed rings and a plurality of primary windings, the primary toothed rings are sequentially arranged on the inner side of the primary outer cylinder at intervals along the length direction of the primary outer cylinder, and the primary windings are arranged between every two adjacent primary toothed rings.
2. The cylindrical synchronous reluctance linear motor according to claim 1, wherein: the first secondary iron core group and the secondary magnetic barrier group in each unit magnetic circuit form a repeating unit, at least one repeating unit is arranged in each unit magnetic circuit, and the annular magnetic barrier is positioned outside the outermost repeating unit.
3. A cylindrical synchronous reluctance linear motor according to claim 1 or 2, wherein: each first secondary iron core is an annular iron core, and the longitudinal section of each first secondary iron core is T-shaped.
4. A cylindrical synchronous reluctance linear motor according to claim 1 or 2, wherein: each secondary magnetic barrier is mainly made of a non-magnetic material, and the longitudinal section of each secondary magnetic barrier is T-shaped.
5. The cylindrical synchronous reluctance linear motor according to claim 4, wherein: each annular magnetic barrier is of a closed annular structure.
6. The cylindrical synchronous reluctance linear motor according to claim 5, wherein: the primary structure further comprises two primary end covers, the two primary end covers correspond to the two primary bearings one to one, the two primary end covers are respectively covered on the corresponding ends of the primary outer cylinder, and the two primary bearings are respectively located in the covering range of the corresponding primary end covers.
7. The cylindrical synchronous reluctance linear motor according to claim 6, wherein: each primary winding is a pancake winding.
8. The cylindrical synchronous reluctance linear motor according to claim 6, wherein: annular grooves are formed between every two adjacent primary gear rings of the primary outer cylinder, and each primary winding is assembled with each annular groove in a one-to-one correspondence mode.
9. The cylindrical synchronous reluctance linear motor according to claim 6, wherein: one end of each primary winding is connected with the output end of the half-bridge circuit, and the other end of each primary winding is connected with a neutral point N.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210913376.6A CN115224906A (en) | 2022-07-29 | 2022-07-29 | Cylindrical synchronous reluctance linear motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210913376.6A CN115224906A (en) | 2022-07-29 | 2022-07-29 | Cylindrical synchronous reluctance linear motor |
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| CN115224906A true CN115224906A (en) | 2022-10-21 |
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| CN202210913376.6A Pending CN115224906A (en) | 2022-07-29 | 2022-07-29 | Cylindrical synchronous reluctance linear motor |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101582625A (en) * | 2009-06-26 | 2009-11-18 | 哈尔滨工业大学 | Cylindrical single-phase permanent magnet linear synchronous motor with parallel magnetic circuits and propulsion control system thereof |
| US20100123426A1 (en) * | 2008-11-14 | 2010-05-20 | Denso Corporation | Reluctance motor with improved stator structure |
| CN101741215A (en) * | 2008-11-20 | 2010-06-16 | 中国科学院宁波材料技术与工程研究所 | Permanent magnet synchronous linear motor |
| CN112615515A (en) * | 2020-12-04 | 2021-04-06 | 南京航空航天大学 | Bilateral dislocation magnetic barrier permanent magnet auxiliary reluctance synchronous linear motor |
| CN114744847A (en) * | 2022-04-08 | 2022-07-12 | 山东大学 | Cylindrical synchronous reluctance linear motor |
-
2022
- 2022-07-29 CN CN202210913376.6A patent/CN115224906A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100123426A1 (en) * | 2008-11-14 | 2010-05-20 | Denso Corporation | Reluctance motor with improved stator structure |
| CN101741215A (en) * | 2008-11-20 | 2010-06-16 | 中国科学院宁波材料技术与工程研究所 | Permanent magnet synchronous linear motor |
| CN101582625A (en) * | 2009-06-26 | 2009-11-18 | 哈尔滨工业大学 | Cylindrical single-phase permanent magnet linear synchronous motor with parallel magnetic circuits and propulsion control system thereof |
| CN112615515A (en) * | 2020-12-04 | 2021-04-06 | 南京航空航天大学 | Bilateral dislocation magnetic barrier permanent magnet auxiliary reluctance synchronous linear motor |
| CN114744847A (en) * | 2022-04-08 | 2022-07-12 | 山东大学 | Cylindrical synchronous reluctance linear motor |
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