CN111371217A - Permanent magnet four-pole three-phase synchronous generator rotor - Google Patents
Permanent magnet four-pole three-phase synchronous generator rotor Download PDFInfo
- Publication number
- CN111371217A CN111371217A CN202010275216.4A CN202010275216A CN111371217A CN 111371217 A CN111371217 A CN 111371217A CN 202010275216 A CN202010275216 A CN 202010275216A CN 111371217 A CN111371217 A CN 111371217A
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- synchronous generator
- phase synchronous
- rotor
- rotor core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—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]
- H02K1/2766—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Abstract
The invention discloses a permanent magnet four-pole three-phase synchronous generator rotor, which comprises: the permanent magnet is arranged in the permanent magnet body, four permanent magnet grooves are preset on the rotor core, and the four permanent magnet grooves are uniformly distributed around the axis of the rotor core; the permanent magnet comprises four permanent magnet units which are respectively arranged in the permanent magnet grooves; each permanent magnet unit includes: the permanent magnet comprises a first permanent magnet, a second permanent magnet and a third permanent magnet, wherein the second permanent magnet and the third permanent magnet are arranged on two sides of the first permanent magnet, and the heights of the second permanent magnet and the third permanent magnet are lower than that of the first permanent magnet. The invention effectively simplifies the manufacturing steps of the generator rotor and further improves the practicability of the device.
Description
Technical Field
The invention relates to the technical field of permanent magnet generators, in particular to a permanent magnet four-pole three-phase synchronous generator rotor.
Background
The permanent magnet generator is a power generation device which converts mechanical energy converted from thermal energy into electric energy. First developed successfully by france.
In a conventional dc motor, an excitation method in which a main pole magnetic field is generated by a dc current is called current excitation; if permanent magnets are used instead of current excitation to produce the main pole field, such machines are referred to as permanent magnet motors.
The permanent magnet generator has the advantages of small volume, low loss, high efficiency and the like, and the research on the permanent magnet generator is very necessary nowadays when the energy conservation and the environmental protection are increasingly emphasized. Permanent magnet motors have been widely used in various fields such as household appliances, medical instruments, automobiles, aviation, national defense and the like with the continuous improvement and perfection of the performance of permanent magnet materials.
Among the permanent magnet generators, the rare earth permanent magnet generator has many advantages of small volume, light weight, large power, high efficiency, low temperature rise and the like, and is used in many power generation occasions. However, due to the high cost and the unreasonable design of the rare earth materials, the rare earth materials are wasted, and the cost of the permanent magnet generator is increased.
The generator rotor with the two-shaped permanent magnet arranged inside can solve the problems in the prior art, but the device not only needs to punch and slot on the rotor core for many times, the manufacturing process is complex, and the generating efficiency of the device is low.
Therefore, it is an urgent need to solve the problem of providing a rotor of a permanent magnet four-pole three-phase synchronous generator with a simple manufacturing process and high power generation efficiency.
Disclosure of Invention
In view of this, the invention provides a permanent magnet quadrupole three-phase synchronous generator rotor, which effectively simplifies the manufacturing steps of the generator rotor and further improves the practicability of the device.
In order to achieve the purpose, the invention adopts the following technical scheme:
a permanent magnet four-pole three-phase synchronous generator rotor comprising: the permanent magnet is arranged in the permanent magnet body, four permanent magnet grooves are preset on the rotor core, and the four permanent magnet grooves are uniformly distributed around the axis of the rotor core;
the permanent magnet comprises four permanent magnet units which are respectively arranged in the permanent magnet grooves;
each permanent magnet unit includes: the permanent magnet comprises a first permanent magnet, a second permanent magnet and a third permanent magnet, wherein the second permanent magnet and the third permanent magnet are arranged on two sides of the first permanent magnet, and the heights of the second permanent magnet and the third permanent magnet are lower than that of the first permanent magnet.
Preferably, the rotor core is formed by stamping and stacking silicon steel sheets.
Preferably, the rotor core is formed by stamping and stacking steel strips.
Preferably, the first permanent magnet has a cross-sectional dimension of 30mm 18 mm.
Preferably, the second permanent magnet and the third permanent magnet each have a cross-sectional dimension of 30mm by 12 mm.
Preferably, the outer diameter of the rotor core is 163 mm.
Preferably, the rotor further comprises a rotor shaft mounted on the central axis of the rotor core.
Preferably, the rotor further comprises a gland mounted at both ends of the rotor core.
According to the technical scheme, compared with the prior art, the rotor of the permanent magnet four-pole three-phase synchronous generator is provided, the rotor adopts a convex permanent magnet arrangement mode, the magnetic flux density in the middle of the magnetic poles of the rotor is improved, the generating efficiency is greatly improved, the starting force is increased, the utilization rate of the magnet is high, the damage rate of the magnet is low, and the practicability of the permanent magnet four-pole three-phase synchronous generator is effectively improved; because this "protruding" font permanent magnet, only need set up a magnet groove and hold three permanent magnet simultaneously in every direction on the rotor core, effectively simplified the manufacturing step of this rotor, it is more convenient to install moreover.
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 diagram of an overall structure of a rotor of a permanent magnet four-pole three-phase synchronous generator according to the present invention;
FIG. 2 is a radial cross-sectional view of a rotor of a permanent magnet four-pole three-phase synchronous generator according to the present invention;
FIG. 3 is an axial cross-sectional view of a rotor of a permanent magnet four-pole three-phase synchronous generator according to the present invention;
1-rotor core, 2-first permanent magnet, 3-second permanent magnet, 4-third permanent magnet, 5-gland, 6-rotor shaft and 7-permanent magnet groove.
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.
The embodiment of the invention discloses a permanent magnet four-pole three-phase synchronous generator rotor, which comprises: the permanent magnet motor comprises a rotor core 1 and permanent magnets, wherein the permanent magnets are arranged in the permanent magnets, four permanent magnet grooves 7 are preset in the rotor core 1, and the four permanent magnet grooves 7 are uniformly distributed around the axis of the rotor core 1;
the permanent magnet comprises four permanent magnet units which are respectively arranged in the permanent magnet grooves 7;
each permanent magnet unit includes: the first permanent magnet 2, the second permanent magnet 3 and the third permanent magnet 4 set up in the both sides of first permanent magnet 2, and wherein the height of second permanent magnet 3 and third permanent magnet 4 is less than first permanent magnet 2.
In order to further realize the technical scheme, the rotor core 1 is formed by stamping and stacking silicon steel sheets.
In order to further realize the technical scheme, the rotor core 1 is formed by stamping and stacking steel strips.
In order to further realize the above technical solution, the first permanent magnet 2 has a cross-sectional dimension of 30mm 18 mm.
In order to further realize the technical scheme, the cross-sectional sizes of the second permanent magnet 3 and the third permanent magnet 4 are both 30mm by 12 mm.
In order to further realize the above technical solution, the outer diameter of the rotor core 1 is 163 mm.
In order to further realize the technical scheme, the rotor comprises a rotor shaft 6, and the rotor shaft 6 is installed on the central axis of the rotor core 1.
In order to further realize the technical scheme, the rotor core structure further comprises glands 5, and the glands 5 are installed at two ends of the rotor core 1.
In order to further realize the technical scheme, the material of the gland 5 is a non-magnetic material.
In order to further realize the technical scheme, the first permanent magnet 2, the second permanent magnet 3 and the third permanent magnet 4 are all made of rare earth neodymium iron boron magnetic steel with the brand number of 45 SH.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
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 (8)
1. A permanent magnet four-pole three-phase synchronous generator rotor comprising: a rotor core (1) and a permanent magnet, the permanent magnet being arranged in the permanent magnet, characterized in that,
four permanent magnet slots (7) are preset on the rotor core (1), and the four permanent magnet slots (7) are uniformly distributed around the axis of the rotor core (1);
the permanent magnet comprises four permanent magnet units which are respectively arranged in the permanent magnet grooves (7);
each permanent magnet unit includes: first permanent magnet (2), second permanent magnet (3) and third permanent magnet (4), second permanent magnet (3) with third permanent magnet (4) set up in the both sides of first permanent magnet (2), wherein the second permanent magnet (3) with the height of third permanent magnet (4) is less than first permanent magnet (2).
2. A permanent magnet quadrupole three phase synchronous generator rotor according to claim 1, wherein the rotor core (1) is stamped and stacked from silicon steel sheets.
3. A permanent magnet quadrupole three phase synchronous generator rotor according to claim 1, wherein the rotor core (1) is stamped and stacked from steel strip.
4. A permanent magnet quadrupole three phase synchronous generator rotor according to claim 1, characterized in that the first permanent magnets (2) have cross sectional dimensions of 30mm x 18 mm.
5. A permanent magnet quadrupole three phase synchronous generator rotor according to claim 1, wherein the cross-sectional dimensions of the second permanent magnet (3) and the third permanent magnet (4) are each 30mm by 12 mm.
6. A permanent magnet quadrupole three phase synchronous generator rotor according to claim 1, characterized in that the outer diameter of the rotor core (1) is 163 mm.
7. A permanent magnet quadrupole three phase synchronous generator rotor according to claim 1, further comprising a rotor shaft (6), the rotor shaft (6) being mounted on the central axis of the rotor core (1).
8. A permanent magnet quadrupole three-phase synchronous generator rotor according to claim 1, further comprising glands (5), the glands (5) being mounted at both ends of the rotor core (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010275216.4A CN111371217A (en) | 2020-04-09 | 2020-04-09 | Permanent magnet four-pole three-phase synchronous generator rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010275216.4A CN111371217A (en) | 2020-04-09 | 2020-04-09 | Permanent magnet four-pole three-phase synchronous generator rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111371217A true CN111371217A (en) | 2020-07-03 |
Family
ID=71210893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010275216.4A Pending CN111371217A (en) | 2020-04-09 | 2020-04-09 | Permanent magnet four-pole three-phase synchronous generator rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111371217A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111884461A (en) * | 2020-07-31 | 2020-11-03 | 宁波仁山电器有限公司 | Low-noise kitchen waste disposer based on four-pole direct-current motor |
-
2020
- 2020-04-09 CN CN202010275216.4A patent/CN111371217A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111884461A (en) * | 2020-07-31 | 2020-11-03 | 宁波仁山电器有限公司 | Low-noise kitchen waste disposer based on four-pole direct-current motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Nagorny et al. | Design aspects of a high speed permanent magnet synchronous motor/generator for flywheel applications | |
| Aydin et al. | A new axial flux surface mounted permanent magnet machine capable of field control | |
| CN101299560B (en) | Flux switching type axial magnetic field permanent magnet brushless motor | |
| Binns et al. | High-field self-starting permanent-magnet synchronous motor | |
| Gao et al. | HTS vernier machine for direct-drive wind power generation | |
| Pakdelian et al. | An electric machine integrated with trans-rotary magnetic gear | |
| CN102545412A (en) | High-efficiency and large-torque disk type switching magnetoresistive motor | |
| CN102684331A (en) | Stator permanent magnet type bearingless motor | |
| CN111371217A (en) | Permanent magnet four-pole three-phase synchronous generator rotor | |
| CN211670694U (en) | Permanent magnet four-pole three-phase synchronous generator rotor | |
| CN207819576U (en) | A kind of new energy electric automobile motor rotor punching | |
| Reis | Comparison of axial-flux and radial-flux-machines for use in wheel-hub-drives | |
| Tarımer et al. | Performance comparision of internal and external rotor structured wind generators mounted from same permanent magnets on same geometry | |
| Zhao et al. | Analysis and design of a Linear Switched Reluctance Motor with force improvement | |
| CN109256879A (en) | A kind of Double-stator motor of ectonexine permanent magnet dislocation | |
| CN210380423U (en) | Permanent magnet four-pole three-phase synchronous generator rotor | |
| Minami et al. | Influence of ratio of external diameter to stack length on torque and efficiency in outer rotor SPMSMs | |
| CN204633495U (en) | A kind of complex excitation generator | |
| Zeng et al. | Design and optimization of a less-rare earth permanent magnet brushless motor considering cost effective | |
| CN214045224U (en) | Permanent magnet four-pole three-phase synchronous generator rotor | |
| CN103618391B (en) | A kind of permanent magnet brushless electromotor of ten pole 12 grooves | |
| CN209375272U (en) | A kind of Double-stator motor of ectonexine permanent magnet dislocation | |
| CN110571956A (en) | Permanent magnet four-pole three-phase synchronous generator rotor | |
| CN201378759Y (en) | Stator permanent-magnet type motor of lower geared slot positioning force moment | |
| CN214154180U (en) | Permanent magnet four-pole three-phase synchronous generator rotor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |