CN218301030U - Tooth crest magnetic flux switching permanent magnet motor of V-shaped rotor - Google Patents
Tooth crest magnetic flux switching permanent magnet motor of V-shaped rotor Download PDFInfo
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- CN218301030U CN218301030U CN202220459831.5U CN202220459831U CN218301030U CN 218301030 U CN218301030 U CN 218301030U CN 202220459831 U CN202220459831 U CN 202220459831U CN 218301030 U CN218301030 U CN 218301030U
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- 230000004907 flux Effects 0.000 title claims description 19
- 238000004804 winding Methods 0.000 claims abstract description 51
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 4
- 229910000859 α-Fe Inorganic materials 0.000 claims description 4
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
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Abstract
The utility model relates to the technical field of electric machine, a permanent-magnet machine is switched to V type rotor addendum magnetic flow is disclosed, including stator and rotor, the stator includes 12U type stator core and 12 permanent magnets, wherein presss from both sides a permanent magnet in the middle of two U type stator core, and armature winding coiling is on U type stator core. The rotor includes rotor core, is provided with 10 the same rotor teeth on the rotor core, and every rotor tooth top is V type structure, motor shaft run through in stator core and rotor core, armature winding adopt concentrated winding mode and two U type stator core go up around putting one set of coil. Compared with the prior art, the utility model relates to a special V type rotor tooth top can reduce the motor operation and decide, the marginal magnetic chain that produces before the coincidence of rotor tooth, and then reduces the torque ripple of motor, has still kept original magnetic flow simultaneously and has switched permanent-magnet machine high torque density, efficient advantage.
Description
Technical Field
The utility model relates to the technical field of electric machines, in particular to permanent-magnet machine is switched to V type rotor tooth top magnetic flux, is often used for mechanical rotating equipment such as trolley-bus drive, fire control smoke exhaust fan, digit control machine tool.
Background
With the continuous development of permanent magnet materials, permanent magnet materials such as ferrite permanent magnet, rare earth permanent magnet, neodymium iron boron permanent magnet and the like are discovered successively. Because the price of the permanent magnet material is relatively low, the permanent magnet motor has the advantages of excellent magnetic performance, high coercive force, high residual magnetic density, high magnetic energy product and the like, and the high-speed development of the permanent magnet motor is greatly promoted along with the advent of power electronic technology and control technology. Because the magnet switching permanent magnet motor has a simple structure, is firm and durable, is suitable for running in a wide rotating speed range, and has the advantages of higher power density, higher efficiency and the like, which are paid more and more attention by domestic and foreign researchers. Compared with other motors, the flux switching permanent magnet motor rotor is simple in structure, stable, reliable, convenient to cool and suitable for high-speed operation.
The double salient pole structure of the traditional flux switching permanent magnet motor easily causes a larger cogging effect. The large cogging effect can cause the motor to generate vibration and noise, the rotating speed is fluctuated, the motor cannot run stably, the performance of the motor is influenced, and the service life of the motor is seriously shortened.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: to the problem that exists among the prior art, the utility model provides a V type rotor tooth top magnetic flow switches permanent-magnet machine has solved the problem that the biconvex pole structure of traditional magnetic flow switching permanent-magnet machine self leads to great tooth's socket effect easily.
The technical scheme is as follows: the utility model provides a V type rotor addendum magnetic flow switches permanent-magnet machine, including stator and rotor, its characterized in that, the stator includes 12U type stator core, 12 permanent magnets and armature winding, U type stator core includes stator yoke portion and stator tooth, and stator yoke portion and stator tooth form the stator slot, are equipped with a permanent magnet in the middle of two adjacent U type stator core, armature winding is coiled on U type stator core; the rotor includes rotor core and motor shaft, the last 10 the same rotor teeth that are provided with of rotor core, the addendum of rotor tooth is V type structure, motor shaft run through in stator core and rotor core.
Furthermore, included angles formed by connecting two sides of the tooth top of the rotor tooth with the left and right points of the tooth top of the rotor tooth in the V-shaped structure are 25-60 degrees.
Further, an independent air gap is formed between the U-shaped stator core and the rotor core.
Furthermore, the armature winding is wound on the stator teeth of two adjacent U-shaped stator cores, and the permanent magnet is positioned between the stator teeth of the two adjacent U-shaped stator cores.
Further, 12 fan-shaped angles of the U-shaped stator cores are all 30 degrees, and 10 rotor teeth are uniformly distributed along the circumference of the rotor core at intervals of 36 degrees.
Further, the armature winding is a 12-strand winding coil, the 12-strand winding coil is divided into three phases, the coil 1 and the coil 2 are reversely connected in series to serve as a first phase winding A, the coil 7 and the coil 8 are reversely connected in series to serve as a second phase winding A, and the first phase winding A and the second phase winding A form a second phase winding A; in the same way, the connection mode of the phase B winding and the phase C winding is the same, and the phase A winding, the phase B winding and the phase C winding are integrally connected in a star shape; leading-out wires A +, B + and C + are used as three-phase wires of the motor, and the other ends A-, B-and C-are connected with a neutral point O.
Furthermore, U type stator core and rotor core all adopt the silicon steel sheet to fold the system, the permanent magnet adopts neodymium iron boron permanent magnet or ferrite permanent magnet to make.
Has the advantages that:
the utility model provides a pair of permanent-magnet machine is switched to V type rotor tooth top magnetic flux adopts 12 grooves 10 utmost point structures, and special V type rotor tooth top can reduce the edge flux linkage that produces before the motor operation is decided, the coincidence of rotor tooth, and then reduces the torque pulsation of motor, has still kept original magnetic flux simultaneously and has switched electric permanent-magnet machine high torque density, efficient advantage.
Drawings
Fig. 1 is a topological structure diagram of the V-shaped rotor tooth crest flux switching permanent magnet motor of the present invention;
fig. 2 is a partial enlarged view of the tooth top of the V-shaped rotor tooth top flux switching permanent magnet motor of the present invention;
fig. 3 is a connection diagram of the V-shaped rotor tooth top flux switching permanent magnet motor winding of the present invention.
The motor comprises a stator 1, a rotor 2, a permanent magnet 3, an armature winding 4, a U-shaped stator core 5, a rotor core 6, a motor rotating shaft 7 and an air gap 8.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The utility model discloses a V type rotor addendum magnetic flux switches permanent-magnet machine, including stator 1 and rotor 2, stator 1 includes 12U type stator core 5, 12 permanent magnet 3 and armature winding 4,U type stator core 5 includes stator yoke portion and stator tooth, stator yoke portion and stator tooth form the stator slot, is equipped with a permanent magnet 3 in the middle of two adjacent U type stator core 5, armature winding 4 is wound on U type stator core 5; rotor 2 includes rotor core 6 and motor shaft 7, is provided with 10 the same rotor teeth on rotor core 6, and the addendum of rotor tooth is V type structure, and motor shaft 7 runs through in stator core 5 and rotor core 6.
The included angles formed by the two sides of the tooth top of the rotor tooth with the V-shaped structure and the connecting line of the left point and the right point of the tooth top are both 25 degrees to 60 degrees, and the included angle formed by the two sides of the tooth top of the rotor tooth with the V-shaped structure and the connecting line of the left point and the right point of the tooth top is 30 degrees in the embodiment.
An independent air gap 8 is formed between the U-shaped stator core 5 and the rotor core 6.
The armature winding 4 is wound on the stator teeth of two adjacent U-shaped stator cores 5, and the permanent magnet 3 is positioned between the stator teeth of the two adjacent U-shaped stator cores 5.
In the present embodiment, 12U-shaped stator cores 5 have sector angles of 30 ° and 10 rotor teeth are uniformly arranged at intervals of 36 ° along the circumference of rotor core 6.
The armature winding 4 is a 12-strand winding coil, the 12-strand winding coil is divided into three phases, the connection mode is shown in figure 3, the coil 1 and the coil 2 are reversely connected in series to serve as a first phase winding A, the coil 7 and the coil 8 are reversely connected in series to serve as a second phase winding A, and the first phase winding A and the second phase winding A form a first phase winding A; in the same way, the connection mode of the phase B winding and the phase C winding is the same, and the phase A winding, the phase B winding and the phase C winding form star connection integrally; the outgoing lines A +, B + and C + are used as three-phase lines of the motor, and the other ends A-, B-and C-are connected with a neutral point O.
The U-shaped stator core 5 and the rotor core 6 are both made of silicon steel sheets in a laminated mode, and the permanent magnet 3 is made of an NdFeB permanent magnet or a ferrite permanent magnet.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (7)
1. The V-shaped rotor tooth top magnetic flux switching permanent magnet motor comprises a stator (1) and a rotor (2), and is characterized in that the stator (1) comprises 12U-shaped stator cores (5), 12 permanent magnets (3) and armature windings (4), each U-shaped stator core (5) comprises a stator yoke and stator teeth, each stator yoke and each stator tooth form a stator slot, one permanent magnet (3) is arranged between every two adjacent U-shaped stator cores (5), and each armature winding (4) is wound on each U-shaped stator core (5); rotor (2) include rotor core (6) and motor shaft (7), be provided with 10 the same rotor teeth on rotor core (6), the addendum of rotor tooth is V type structure, motor shaft (7) run through in stator core (5) and rotor core (6).
2. The V-rotor addendum flux switching permanent magnet motor of claim 1, wherein the angles formed by the two sides of the V-shaped rotor tooth addendum and the line connecting the two points at the left and right of the addendum are each 25 ° to 60 °.
3. The V-rotor addendum flux switching permanent magnet machine according to claim 1, wherein an independent air gap (8) is formed between the U-shaped stator core (5) and the rotor core (6).
4. The V-rotor addendum flux switching permanent magnet motor according to claim 1, wherein the armature windings (4) are wound around the stator teeth of two adjacent U-shaped stator cores (5), and the permanent magnets (3) are located between the stator teeth of the two adjacent U-shaped stator cores (5).
5. The V-rotor addendum flux switching pm machine according to claim 1, wherein 12U-stator cores (5) have a sector angle of 30 ° and 10 rotor teeth are uniformly arranged along the circumference of the rotor core (6) at intervals of 36 °.
6. The V-rotor addendum flux switching permanent magnet motor according to claim 1, wherein the armature winding (4) is a 12-strand coil, the 12-strand coil is divided into three phases, the coil 1 and the coil 2 are connected in series in an opposite direction as a-phase winding one, the coil 7 and the coil 8 are connected in series in an opposite direction as an a-phase winding two, and the a-phase winding one and the a-phase winding two form an a-phase winding; in the same way, the connection mode of the phase B winding and the phase C winding is the same, and the phase A winding, the phase B winding and the phase C winding form star connection integrally; the outgoing lines A +, B + and C + are used as three-phase lines of the motor, and the other ends A-, B-and C-are connected with a neutral point O.
7. The V-shaped rotor addendum flux switching permanent magnet motor according to any one of claims 1 to 6, wherein the U-shaped stator core (5) and the rotor core (6) are laminated by silicon steel sheets, and the permanent magnet (3) is made of NdFeB permanent magnet or ferrite permanent magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220459831.5U CN218301030U (en) | 2022-03-04 | 2022-03-04 | Tooth crest magnetic flux switching permanent magnet motor of V-shaped rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220459831.5U CN218301030U (en) | 2022-03-04 | 2022-03-04 | Tooth crest magnetic flux switching permanent magnet motor of V-shaped rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218301030U true CN218301030U (en) | 2023-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220459831.5U Active CN218301030U (en) | 2022-03-04 | 2022-03-04 | Tooth crest magnetic flux switching permanent magnet motor of V-shaped rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218301030U (en) |
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2022
- 2022-03-04 CN CN202220459831.5U patent/CN218301030U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shanghai Yanqiao Information Technology Co.,Ltd. Assignor: HUAIYIN INSTITUTE OF TECHNOLOGY Contract record no.: X2023980047724 Denomination of utility model: A V-shaped rotor tooth top flux switching permanent magnet motor Granted publication date: 20230113 License type: Common License Record date: 20231121 |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240407 Address after: 230000 Room 203, building 2, phase I, e-commerce Park, Jinggang Road, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee after: Hefei Jiuzhou Longteng scientific and technological achievement transformation Co.,Ltd. Country or region after: China Address before: 223000 No.1, Meicheng East Road, Huaian Economic and Technological Development Zone, Jiangsu Province Patentee before: HUAIYIN INSTITUTE OF TECHNOLOGY Country or region before: China |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240425 Address after: No. 42, Limin District, Shifo Village, Shifo Town, Anguo City, Baoding City, Hebei Province, 071000 Patentee after: Huang Peng Country or region after: China Patentee after: Wang Hui Address before: 230000 Room 203, building 2, phase I, e-commerce Park, Jinggang Road, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee before: Hefei Jiuzhou Longteng scientific and technological achievement transformation Co.,Ltd. Country or region before: China |