CN212063661U - Permanent magnet synchronous motor rotor and motor - Google Patents
Permanent magnet synchronous motor rotor and motor Download PDFInfo
- Publication number
- CN212063661U CN212063661U CN202020914514.9U CN202020914514U CN212063661U CN 212063661 U CN212063661 U CN 212063661U CN 202020914514 U CN202020914514 U CN 202020914514U CN 212063661 U CN212063661 U CN 212063661U
- Authority
- CN
- China
- Prior art keywords
- magnetic steel
- rotor
- groove
- permanent magnet
- magnet synchronous
- 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
Landscapes
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses an improve PMSM rotor's magnetic energy deposit for the motor is big at high-speed operation lower constant power output torque, has designed a PMSM rotor, including the body and set up a plurality of magnet steel bank of cells in the body, the magnet steel bank of cells includes two magnet steel grooves at least, and the magnet steel groove has one section to buckle at least, is provided with the magnet steel in the magnet steel groove.
Description
Technical Field
The utility model relates to a motor design technical field especially relates to PMSM rotor and motor field.
Background
The permanent magnet synchronous motor is a synchronous motor which generates synchronous rotating magnetic fields by permanent magnet excitation. Classifying according to the installation positions of the permanent magnets: surface Permanent Magnet Synchronous Machines (SPMSM) and Interior Permanent Magnet Synchronous Machines (IPMSM). Classifying according to the response potential waveform of the stator winding: sine wave permanent magnet synchronous motor, brushless permanent magnet direct current motor. The permanent magnet synchronous motor has the advantages of large power factor, low loss, flexible shape and size, simple structure, high power and the like. In order to improve the magnetic energy accumulation of the permanent magnet synchronous motor rotor and ensure that the motor has large constant-power output torque under high-speed operation, the permanent magnet motor rotor and the motor are designed.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve above technical problem and designed a PMSM rotor, include the body and set up a plurality of magnet steel slot groups in the body, the magnet steel slot group includes two magnet steel slots at least, there is one section bending in the magnet steel slot at least, the magnet steel inslot is provided with the magnet steel.
The magnetic steel groove set is arranged at a position, close to the motor stator, of the rotor and is distributed along the rotating shaft of the rotor in a circumferential mode, the magnetic steel groove is bent in a V shape and faces the motor stator, the magnetic steel groove is axially arranged in the body, namely the body is provided with the axial magnetic steel groove, and one or more pieces of magnetic steel are arranged in the magnetic steel groove to form better V-shaped magnetic steel for acting in the permanent magnet synchronous motor.
The utility model discloses an in the magnet steel groove group the equidistance is arranged between the magnet steel groove.
The magnetic steel slots in each magnetic steel slot group are distributed along the radial direction of the motor rotor, and the length of each magnetic steel slot is gradually increased from the motor stator to the direction of the rotor rotating shaft.
The utility model discloses a buckle opening direction in magnetic steel groove is the outside direction of rotor shaft, promptly the mouth of buckling in magnetic steel groove is towards motor stator.
The utility model discloses an every the magnet steel bank of cells includes symmetric distribution's magnet steel bank of cells A and magnet steel bank of cells B, magnet steel bank of cells A or magnet steel bank of cells B include two at least the magnet steel bank of cells, in magnet steel bank of cells A and the magnet steel bank of cells B the equidistance is arranged between the magnet steel bank of cells.
The magnetic steel grooves in the magnetic steel groove group A or the magnetic steel groove group B are distributed along the radial direction of the motor rotor, the length of the magnetic steel grooves is gradually increased from the motor stator to the direction of the rotating shaft of the rotor, the magnetic steel groove group A and the magnetic steel groove group B form the magnetic steel groove group with a trapezoid structure, and the trapezoid opening faces the direction of the motor stator, so that the overall magnetic field intensity of the magnetic steel groove group can be increased, and the magnetic accumulation energy of the rotor can be improved.
The utility model discloses still include the auxiliary tank, the auxiliary tank is seted up the magnet steel bank of cells with between the body external diameter. The auxiliary groove is axially arranged in the body, and the auxiliary groove is arranged on one side, close to the motor stator, of the magnetic steel groove group, namely between the magnetic steel groove group and the outer diameter of the body.
The auxiliary groove is a through hole, magnetic leakage can be reduced through the auxiliary groove, and further magnetic field intensity around the magnetic steel groove group is strengthened.
The utility model discloses a magnetic steel groove is for running through the logical groove of two terminal surfaces of body. Namely, the magnetic steel groove is axially arranged in the body.
The utility model discloses still include the lightening hole, the lightening hole sets up the magnet steel bank of cells with between the body pivot. Rivet holes are arranged among the lightening holes at intervals.
A permanent magnet synchronous motor comprises the permanent magnet synchronous motor rotor.
The utility model discloses following beneficial effect has:
compared with the prior art, the utility model discloses a purpose-built rotor magnetic steel groove and air groove cooperation have improved the magnetic accumulation ability of PMSM rotor for the motor output torque grow under high-speed operation, and make output constant power torque under high-speed operation.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of the motor of the present invention;
fig. 3 is a schematic cross-sectional view of the rotor of the present invention.
In the figure, 1-a body, 2-a magnetic steel groove group, 21-a magnetic steel groove group A, 22-a magnetic steel groove group B, 3-a magnetic steel groove, 4-a first air groove and 5-a lightening hole.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
A permanent magnet synchronous motor rotor comprises a body 1 and a plurality of magnetic steel groove groups 2 arranged in the body 1, wherein each magnetic steel groove group 2 at least comprises two magnetic steel grooves 3, at least one section of each magnetic steel groove 3 is bent, and magnetic steel is arranged in each magnetic steel groove 3. The magnetic steel groove group 2 is arranged at a position, close to a motor stator, of the rotor, and is multiple, the magnetic steel groove group 2 is distributed along the rotating shaft of the rotor in a circumferential mode, the magnetic steel groove (3) is bent in a V shape and faces the motor stator, the magnetic steel groove (3) is axially arranged in the body (1), namely, the body (1) is provided with the magnetic steel groove (3) in an axial mode, and one or more pieces of magnetic steel are arranged in the magnetic steel groove (3) to form better V-shaped magnetic steel to act on the permanent magnet synchronous motor.
The utility model discloses an in the magnet steel groove group 2 the equidistance is arranged between the magnet steel groove 3. The magnetic steel slots 3 in each magnetic steel slot group 2 are distributed along the radial direction of the motor rotor, and the length of each magnetic steel slot 3 is gradually increased from the motor stator to the rotor rotating shaft. The utility model discloses a magnetic steel groove 3 buckle the opening direction and be the outside direction of rotor shaft, promptly magnetic steel groove 3 buckle mouthful towards motor stator. The utility model discloses a magnetism steel slot 3 is for running through the logical groove of 1 two terminal surfaces of body. Namely, the magnetic steel groove 3 is axially arranged in the body 1.
The utility model discloses a every magnet steel slot group 2 includes symmetric distribution's magnet steel slot group A21 and magnet steel slot group B22, magnet steel slot group A21 or magnet steel slot group B22 include two at least magnet steel slot 3, in magnet steel slot group A21 and the magnet steel slot group B22 the equidistance is arranged between the magnet steel slot 3. The magnetic steel slots 3 in the magnetic steel slot group a21 or the magnetic steel slot group B22 are distributed along the radial direction of the motor rotor, the length of the magnetic steel slots 3 is gradually increased from the motor stator to the rotor rotating shaft direction, the magnetic steel slot group a21 and the magnetic steel slot group B22 form the magnetic steel slot group 2 with a ladder-shaped structure, and the ladder-shaped opening faces the motor stator direction, so that the magnetic field intensity of the whole magnetic steel slot group 2 can be increased, and the magnetic accumulation energy of the rotor is improved.
The utility model discloses still include auxiliary tank 4, auxiliary tank 4 is seted up magnet steel trough group 2 with between the 1 external diameter of body. The auxiliary groove 4 is axially arranged in the body 1, and the auxiliary groove 4 is arranged on one side, close to the motor stator, of the magnetic steel groove group 2, namely between the magnetic steel groove group 2 and the outer diameter of the body 1. Wherein, auxiliary tank 4 is the through-hole, auxiliary tank 4 can reduce the magnetic leakage, further reinforcing the magnetic field intensity around magnet steel slot group 2.
The utility model discloses still include lightening hole 5, lightening hole 5 sets up magnet steel groove group 2 with between the 1 pivot of body. Rivet holes are arranged between the lightening holes 5 at intervals.
The utility model discloses still include a PMSM, contain foretell PMSM rotor.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by the technical solution of the present invention by those skilled in the art should fall into the protection scope of the present invention, and the technical contents claimed by the present invention have been fully recorded in the claims.
Claims (9)
1. A permanent magnet synchronous motor rotor is characterized in that: the magnetic steel groove comprises a body (1) and a plurality of magnetic steel groove groups (2) arranged in the body (1), wherein each magnetic steel groove group (2) at least comprises two magnetic steel grooves (3), at least one section of each magnetic steel groove (3) is bent, and magnetic steel is arranged in each magnetic steel groove (3).
2. A rotor for a permanent magnet synchronous motor according to claim 1, characterized in that: the magnetic steel slots (3) in the magnetic steel slot group (2) are arranged at equal intervals.
3. A rotor for a permanent magnet synchronous motor according to claim 1, characterized in that: the bent opening direction of the magnetic steel groove (3) is the outward direction of the rotor rotating shaft.
4. A rotor for a permanent magnet synchronous motor according to claim 1 or 3, characterized in that: each magnetic steel slot group (2) comprises a magnetic steel slot group A (21) and a magnetic steel slot group B (22) which are symmetrically distributed, the magnetic steel slot group A (21) and the magnetic steel slot group B (22) at least comprise two magnetic steel slots (3), and the magnetic steel slots (3) in the magnetic steel slot group A (21) and the magnetic steel slot group B (22) are arranged at equal intervals.
5. A rotor for a permanent magnet synchronous motor according to claim 1, characterized in that: the magnetic steel groove set is characterized by further comprising an auxiliary groove (4), wherein the auxiliary groove (4) is formed between the magnetic steel groove set (2) and the outer diameter of the body (1).
6. A rotor for a permanent magnet synchronous motor according to claim 1, characterized in that: the magnetic steel groove (3) is a through groove penetrating through two end faces of the body (1).
7. A rotor for a permanent magnet synchronous motor according to claim 1, characterized in that: the magnetic steel groove assembly further comprises lightening holes (5), and the lightening holes (5) are arranged between the magnetic steel groove assembly (2) and the rotating shaft of the body (1).
8. The rotor of a permanent magnet synchronous motor according to claim 7, characterized in that: rivet holes are arranged between the lightening holes (5) at intervals.
9. A permanent magnet synchronous motor is characterized in that: a rotor for a permanent magnet synchronous machine comprising a rotor according to any of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020914514.9U CN212063661U (en) | 2020-05-27 | 2020-05-27 | Permanent magnet synchronous motor rotor and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020914514.9U CN212063661U (en) | 2020-05-27 | 2020-05-27 | Permanent magnet synchronous motor rotor and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212063661U true CN212063661U (en) | 2020-12-01 |
Family
ID=73521166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020914514.9U Active CN212063661U (en) | 2020-05-27 | 2020-05-27 | Permanent magnet synchronous motor rotor and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212063661U (en) |
-
2020
- 2020-05-27 CN CN202020914514.9U patent/CN212063661U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209046388U (en) | A kind of vehicle high speed permanent-magnetic synchronous motor rotor and punching | |
| US11594921B2 (en) | Electric machine with noise-reducing rotor notches | |
| CN104882978A (en) | Low-torque-ripple high-efficient permanent magnetic motor stator and rotor structure | |
| CN111224486A (en) | High-reluctance permanent magnet synchronous rotor structure of new energy automobile driving motor | |
| CN113489189A (en) | Permanent magnet motor rotor punching sheet for vehicle and oblique pole structure thereof | |
| CN210041465U (en) | Rotor punching sheet and motor | |
| CN115378158A (en) | Electric machine | |
| CN212063661U (en) | Permanent magnet synchronous motor rotor and motor | |
| CN211579726U (en) | High-reluctance permanent magnet synchronous rotor structure of new energy automobile driving motor | |
| CN112615452A (en) | Rotary motor rotor and motor | |
| CN218162178U (en) | Birotor in-wheel motor and vehicle | |
| CN215772705U (en) | Permanent magnet motor rotor punching sheet for vehicle and oblique pole structure thereof | |
| CN215267803U (en) | Rotary motor punching sheet and rotor | |
| CN206149052U (en) | Rotor and permanent -magnet machine | |
| CN213990323U (en) | Rotary motor rotor and motor | |
| CN210404866U (en) | Built-in permanent magnet motor rotor punching sheet | |
| CN112953152A (en) | High salient pole ratio permanent magnet motor for electric motor | |
| CN112510868A (en) | Rotor core of reluctance motor and reluctance motor | |
| CN211183569U (en) | Motor rotor with high torque density | |
| CN201094147Y (en) | Structure improvement of permanent-magnet electric motor | |
| CN217741408U (en) | Rotor punching sheet of permanent magnet synchronous motor, rotor and motor | |
| CN205195523U (en) | Permanent magnet synchronous motor and electric automobile with same | |
| CN211183572U (en) | Permanent magnet motor rotor punching sheet | |
| CN216146168U (en) | Rotor punching sheet structure | |
| CN215733722U (en) | Outer rotor assembly and motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |