CN218888233U - Induction and permanent magnet combined rotor - Google Patents
Induction and permanent magnet combined rotor Download PDFInfo
- Publication number
- CN218888233U CN218888233U CN202223357718.5U CN202223357718U CN218888233U CN 218888233 U CN218888233 U CN 218888233U CN 202223357718 U CN202223357718 U CN 202223357718U CN 218888233 U CN218888233 U CN 218888233U
- Authority
- CN
- China
- Prior art keywords
- rotor
- permanent magnet
- induction
- rotor core
- winding
- 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.)
- Active
Links
Images
Classifications
-
- 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
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model relates to an electric motor rotor technical field, concretely relates to rotor that response and permanent magnetism combine, including rotor core, rotor winding and pivot, set up the response flower groove that the multiunit was followed central symmetric distribution in rotor core's periphery annular, rotor core sets up at least two sets of permanent magnet mounting grooves along central symmetric distribution in the annular again, make squirrel cage winding run through the response flower groove and connect in rotor core's both ends again at rotor core casting squirrel cage winding, the permanent magnet is installed in the permanent magnet mounting groove, both have the permanent magnetism function of permanent magnetism formula rotor, the electromagnetic induction function of induction type rotor has again, be applied to in order to realize when low rotational speed moving performance permanent magnetism structure function in the motor, performance induction type structure function when high rotational speed moving.
Description
Technical Field
The utility model relates to an electric motor rotor technical field, concretely relates to response and permanent magnetism combination's rotor.
Background
The existing electric vehicle motors are divided into permanent magnet synchronous motors and induction asynchronous motors.
The permanent magnet synchronous motor mainly comprises a rotor, an end cover and a stator, wherein a high-quality permanent magnet magnetic pole is arranged on the rotor, when three-phase stator windings of the motor are introduced with three-phase symmetrical alternating current, a rotating magnetic field is generated and cuts the rotor windings, and therefore induced current is generated in the rotor windings. The asynchronous induction motor mainly comprises a stator and a rotor, wherein the stator generates an excitation rotating magnetic field, absorbs electric energy from a power supply and generates and converts the electric energy into mechanical energy on the rotor through the rotating magnetic field.
The permanent magnet synchronous motor is suitable for running at a low rotating speed, and the asynchronous induction motor is more suitable for running at a high rotating speed; however, the permanent magnet synchronous motor has the disadvantages that the cost is higher than that of an induction motor, demagnetization can be caused under the environment of high temperature and large amplitude change, and the reliability is relatively poor under the complex condition of high-level vibration. The advantages of induction motors are simple structure, higher reliability and lower cost. Compared with a permanent magnet synchronous motor, the permanent magnet synchronous motor has better high-speed performance and can realize faster acceleration of hundreds of kilometers. But in contrast, it requires a more efficient and complex cooling system, and is also more bulky and less efficient. In order to meet the performance requirements of vehicles, a permanent magnet synchronous motor and an induction motor are used on one vehicle type, but the cost is high, and an induction and permanent magnet combined rotor is lacked in the prior art and is applied to the motor to realize the permanent magnet type structure function when the motor runs at a low rotating speed and the induction type structure function when the motor runs at a high rotating speed.
Disclosure of Invention
In order to overcome the defects and shortcomings existing in the prior art, the utility model aims to provide a rotor combining induction and permanent magnet.
The purpose of the utility model is realized through the following technical scheme: the utility model provides a rotor that response and permanent magnetism combine, includes rotor core, rotor winding and wears to locate the pivot at rotor core middle part, the periphery of rotor core annular is seted up the multiunit and is followed centrosymmetric distribution's response flower groove, rotor core still annular is seted up at least two sets of permanent magnetism mounting grooves along centrosymmetric distribution, rotor winding is including running through the response flower groove and connecting in the squirrel cage winding at rotor core both ends and holding the permanent magnet of locating the permanent magnetism mounting groove.
Preferably, the rotor core is further annularly provided with at least two groups of heat dissipation holes which are symmetrically distributed along the center, and the heat dissipation holes, the permanent magnet installation grooves and the induction flower grooves are sequentially distributed along the center of the rotor core outwards.
Preferably, both ends of the permanent magnet mounting groove are provided with magnetic isolation air grooves.
Preferably, the rotor core, the squirrel cage winding and the permanent magnet are of an integrated structure.
Preferably, the squirrel cage winding is a cast aluminum winding or a cast copper winding.
Preferably, the middle part of the rotor core is provided with a shaft hole, and the hole wall of the shaft hole is provided with a positioning groove matched with the rotating shaft.
Preferably, the rotor further comprises a positioning pin, and the rotor core is in transmission connection with the rotating shaft through the positioning pin.
The beneficial effects of the utility model reside in that: the utility model discloses a rotor that response and permanent magnetism combine, set up the multiunit along central symmetric distribution's response flower groove in rotor core's periphery annular, rotor core is the annular again and sets up at least two sets of permanent magnetism mounting grooves along central symmetric distribution, again make squirrel cage winding run through the response flower groove and connect in rotor core's both ends rotor core casting squirrel cage winding, the permanent magnet is installed in permanent magnetism mounting groove, both have the permanent magnetism function of permanent magnetism formula rotor, the electromagnetic induction function of induction type rotor has again, be applied to in order to realize exerting permanent magnetism formula structure function when low rotational speed moves in the motor, exert induction type structure function when high rotational speed moves.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 isbase:Sub>A cross-sectional view A-A of FIG. 1;
the reference signs are: 1. a rotor core; 2. a rotor winding; 21. a squirrel cage winding; 22. a permanent magnet; 3. a rotating shaft; 4. heat dissipation holes; 5. a magnetism isolating air tank; 6. positioning a groove; 7. and a positioning pin.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and accompanying drawings, which are not intended to limit the present invention.
As shown in fig. 1-2, a rotor combining induction and permanent magnet comprises a rotor core 1, a rotor winding 2 and a rotating shaft 3 penetrating through the middle of the rotor core 1, wherein a plurality of groups of induction flower grooves distributed along the central symmetry are annularly formed on the periphery of the rotor core 1, at least two groups of permanent magnet mounting grooves distributed along the central symmetry are annularly formed on the rotor core 1, and the rotor winding 2 comprises a squirrel cage winding 21 penetrating through the induction flower grooves and connected to two ends of the rotor core 1, and a permanent magnet 22 accommodated in the permanent magnet mounting grooves.
The rotor combining induction and permanent magnet is characterized in that a plurality of groups of induction flower grooves distributed along the central symmetry are annularly formed in the periphery of a rotor core 1, at least two groups of permanent magnet mounting grooves distributed along the central symmetry are annularly formed in the rotor core 1, a squirrel cage winding 21 is cast in the rotor core 1 to enable the squirrel cage winding 21 to penetrate through the induction flower grooves and be connected to two ends of the rotor core 1, and a permanent magnet 22 is mounted in each permanent magnet mounting groove, so that the permanent magnet rotor has the permanent magnet function of the permanent magnet rotor and the electromagnetic induction function of the induction rotor, is applied to a motor to realize the permanent magnet structure function when the motor runs at a low rotating speed and the induction structure function when the motor runs at a high rotating speed.
In this embodiment, the rotor core 1 is further annularly provided with at least two groups of heat dissipation holes 4 symmetrically distributed along the center, and the heat dissipation holes 4, the permanent magnet installation grooves and the induction flower grooves are sequentially distributed along the center of the rotor core 1.
By adopting the technical scheme, the heat dissipation holes 4 are beneficial to the heat dissipation of the rotor core 1.
In this embodiment, two ends of the permanent magnet installation groove are both provided with magnetic isolation air grooves 5.
By adopting the technical scheme, the magnetic isolation air grooves 5 are beneficial to preventing the magnetic flux of the permanent magnet 22 from being short-circuited.
In this embodiment, the rotor core 1, the squirrel cage winding 21 and the permanent magnet 22 are of an integrated structure.
By adopting the technical scheme, the dual-rotor running of the permanent magnet rotor and the induction rotor is avoided, and the space is saved.
In this embodiment, the squirrel cage winding 21 is a cast aluminum winding or a cast copper winding.
Further, the squirrel cage winding 21 of the present embodiment is a cast aluminum winding.
In this embodiment, the middle part of rotor core 1 has seted up the shaft hole, the pore wall in shaft hole seted up with 3 complex constant head tank 6 of pivot.
Adopt above-mentioned technical scheme to rotor core 1 is connected with pivot 3 location.
In this embodiment, the rotor further includes a positioning pin 7, and the rotor core 1 is in transmission connection with the rotating shaft 3 through the positioning pin 7.
The above-mentioned embodiment is the utility model discloses the implementation of preferred, in addition, the utility model discloses can also realize by other modes, not deviating from the utility model discloses any obvious replacement is all within the protection scope under the prerequisite of design.
Claims (6)
1. An induction and permanent magnet combined rotor, characterized in that: the rotor winding comprises a rotor core, a rotor winding and a rotating shaft penetrating through the middle of the rotor core, wherein the periphery of the rotor core is annularly provided with a plurality of groups of induction flower grooves which are symmetrically distributed along the center, the rotor core is also annularly provided with at least two groups of permanent magnet mounting grooves which are symmetrically distributed along the center, and the rotor winding comprises a squirrel cage winding which penetrates through the induction flower grooves and is connected to two ends of the rotor core and permanent magnets accommodated in the permanent magnet mounting grooves; and magnetic isolation air grooves are formed at two ends of the permanent magnet mounting groove.
2. An induction and permanent magnet combined rotor according to claim 1, characterized in that: the rotor core is further annularly provided with at least two groups of heat dissipation holes which are symmetrically distributed along the center, and the heat dissipation holes, the permanent magnet installation grooves and the induction flower grooves are sequentially distributed along the center of the rotor core outwards.
3. An induction and permanent magnet combined rotor according to claim 1, characterized in that: the rotor core, the squirrel cage winding and the permanent magnet are of an integrated structure.
4. An induction and permanent magnet combined rotor according to claim 1, characterized in that: the squirrel cage winding is a cast aluminum winding or a cast copper winding.
5. An induction and permanent magnet combined rotor according to claim 1, characterized in that: the middle part of rotor core has seted up the shaft hole, the pore wall in shaft hole seted up with pivot complex constant head tank.
6. An induction and permanent magnet combined rotor according to claim 1, characterized in that: the rotor further comprises a positioning pin, and the rotor iron core is in transmission connection with the rotating shaft through the positioning pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223357718.5U CN218888233U (en) | 2022-12-12 | 2022-12-12 | Induction and permanent magnet combined rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223357718.5U CN218888233U (en) | 2022-12-12 | 2022-12-12 | Induction and permanent magnet combined rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218888233U true CN218888233U (en) | 2023-04-18 |
Family
ID=85940134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223357718.5U Active CN218888233U (en) | 2022-12-12 | 2022-12-12 | Induction and permanent magnet combined rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218888233U (en) |
-
2022
- 2022-12-12 CN CN202223357718.5U patent/CN218888233U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101299560B (en) | Flux switching type axial magnetic field permanent magnet brushless motor | |
| EP3493372B1 (en) | Integrated starter generator and hybrid power system | |
| WO2016058446A1 (en) | Motor | |
| CN101594036A (en) | Wound rotor self-starting permasyn motor | |
| CN109904951A (en) | Ultra-high-speed permanent magnet disc type motor and mounting method thereof | |
| CN112722242A (en) | Magnetic suspension ducted fan for electric aircraft | |
| CN105703508A (en) | Disk type motor rotor with built-in magnetic steel | |
| CN103269142B (en) | Molecular pump high-speed permanent magnet motor | |
| KR20150120789A (en) | Support holder and rotor of wound rotor synchronous motor using the same | |
| CN101789662A (en) | Dual-purpose motor driven by permanent magnet hybrid electric vehicle to generate electricity | |
| CN109728708B (en) | High-temperature superconducting motor | |
| CN113300515B (en) | Disc type axial magnetic field permanent magnet brushless motor structure containing tangential magnet structure and method thereof | |
| CN218888233U (en) | Induction and permanent magnet combined rotor | |
| NL2034615A (en) | Transverse and sectional type magnetic flux hybrid excitation switched reluctance motor | |
| CN203233291U (en) | High-speed permanent magnet motor for molecular pump | |
| CN214124956U (en) | No yoke stator module and axial permanent magnetism wheel hub formula motor | |
| CN102386732A (en) | Nested low-speed outer rotor permanent magnet motor | |
| CN207117446U (en) | A kind of axial magnetic flux disk type electric motor rotor of bimorph transducer triple-spool | |
| CN108429421B (en) | Mixed excitation motor for new energy automobile | |
| CN113726058B (en) | Permanent magnet motor | |
| CN202334209U (en) | Nested type low velocity outer rotor permanent magnet motor | |
| CN2733727Y (en) | Low-voltage large-power permanent magnet brushless DC plate type motor | |
| CN213027558U (en) | Magnetic suspension bearing and motor | |
| CN202713090U (en) | Hybrid excitation starting generating integrated motor | |
| CN112688519B (en) | Stator permanent magnet type axial magnetic field permanent magnet motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |