CN111786479A - Rotor and motor - Google Patents
Rotor and motor Download PDFInfo
- Publication number
- CN111786479A CN111786479A CN202010656061.9A CN202010656061A CN111786479A CN 111786479 A CN111786479 A CN 111786479A CN 202010656061 A CN202010656061 A CN 202010656061A CN 111786479 A CN111786479 A CN 111786479A
- Authority
- CN
- China
- Prior art keywords
- magnetic
- rotor
- pole
- utmost point
- rotor according
- 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
- 230000004907 flux Effects 0.000 claims abstract description 11
- 238000005728 strengthening Methods 0.000 claims abstract description 4
- 229920003023 plastic Polymers 0.000 claims description 14
- 239000004033 plastic Substances 0.000 claims description 14
- 238000004804 winding Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000006247 magnetic powder Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000006698 induction Effects 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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
- H02K1/24—Rotor cores with salient poles ; Variable reluctance rotors
-
- 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
-
- 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
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention relates to a rotor, comprising a rotor core, wherein a plurality of magnetic poles are distributed on the outer circular surface of the rotor core, and magnetic force pieces for strengthening the magnetic flux of each magnetic pole are arranged on two sides of a zero line of every two adjacent magnetic poles, so that the rotor has the advantages that: in addition, the magnetic force pieces are arranged on two sides of the zero line of the two magnetic poles to strengthen the magnetic flux of each magnetic pole, the magnetic induction intensity generated by each magnetic pole is improved due to the strengthening of the magnetic flux of each magnetic pole, the rotating torque of the whole rotor is improved, the output power of the whole motor is improved by improving the rotating torque of the whole rotor under the condition of not changing the original size of the rotor, the structure of the whole rotor is optimized, the whole structure is simple, the installation and the disassembly are convenient, the magnetic force pieces are arranged on two sides of the zero line of every two adjacent magnetic poles, and the balance of the magnetic lines cut by the two adjacent magnetic poles can be ensured.
Description
Technical Field
The invention relates to a rotor and a motor.
Background
The motor is an electromagnetic device for realizing electric energy conversion or transmission according to the electromagnetic induction law, the existing motor generally comprises a rotor and a stator, the rotor is used for outputting torque, in the aspect of electromagnetism, the rotor and the stator are required to interact with each other no matter the motor is an alternating current motor or a direct current motor, so that torque output is generated, when the stator is electrified, three windings of the stator can generate a rotating magnetic field, according to the electromagnetic conversion principle, namely, a magnetic field with certain intensity and a closed metal loop move relatively, so that the closed metal loop can generate current, the rotating magnetic field cuts the windings in the rotor, so that the current can be generated in the rotor windings, and according to the Faraday electromagnetic induction principle, an electrified conductor can be pulled back in the magnetic field, so that the current in the rotor can be pulled by the rotating magnetic field, so that a rotating torque is generated, the magnetic induction intensity generated by a rotor winding of the existing motor determines the size of the rotating torque, the size of the rotating torque determines the output power of the motor, and the magnetic flux of a magnetic field is increased by increasing the size of the rotor winding in order to improve the output power of the motor, so that the size of the whole rotor is increased, and the size of the whole motor is increased.
Disclosure of Invention
The invention aims to provide a rotor which can effectively strengthen the rotating torque generated by the rotor on the premise of not changing the size of the rotor.
In order to solve the technical problems, the invention is realized by the following technical scheme: a rotor comprises a rotor core, a plurality of magnetic poles are distributed on the outer circular surface of the rotor core, and magnetic force pieces used for strengthening magnetic flux of each magnetic pole are arranged on two sides of a zero line of every two adjacent magnetic poles.
Preferably, the magnetic member includes an N pole and an S pole, the N pole is disposed at one end of the magnetic member, the S pole is disposed at the other end of the magnetic member, and the N pole or the S pole of two adjacent magnetic members are disposed opposite to each other.
Preferably, the outer contour of the magnetic member is trapezoidal, a central angle a is formed between two inclined edges of the magnetic member, and the central angle a is equal to 0-90 degrees.
Preferably, the central angle a is equal to 7-10 degrees.
Preferably, the magnetic member is further provided with a projection extending upwards, and a groove for fixing the magnetic pole is arranged between the projection and the magnetic member.
Preferably, the recess includes one section slope section of downward sloping and one section circular arc section that is used for connecting slope section and lug, the width of recess equals 0.5mm, the radius of circular arc section is 0.2 mm.
Preferably, the magnetic member is further provided with an arc chamfer abutting against the magnetic pole.
Preferably, the rotor core further comprises a ring hub and a plastic part, the magnetic part is uniformly arranged on the outer circumferential wall of the plastic part, and the magnetic part is fixedly connected to the ring hub through the plastic part.
Preferably, the magnet is a magnetic powder or a magnetic steel sheet or a magnetic winding.
The invention also provides a motor which comprises a stator and a rotor, wherein the rotor is the rotor.
In conclusion, the invention has the advantages that: the magnetic flux of each magnetic pole is strengthened by the magnetic parts arranged on the two sides of the zero line of the two magnetic poles, the enhancement of the magnetic flux of each magnetic pole is realized, the magnetic induction intensity generated by each magnetic pole is improved, the rotating torque of the whole rotor is improved, under the condition of not changing the original size of the rotor, the output power of the whole motor is improved by improving the rotating torque of the whole rotor, the structure of the whole rotor is optimized, the whole structure is simple, the installation and the disassembly are convenient, secondly, the magnetic parts are arranged on the two sides of the zero line of every two adjacent magnetic poles, the balance of the magnetic lines of force cut by the two adjacent magnetic poles can be ensured, finally, the magnetic parts made of different materials can be arranged according to different application occasions and use requirements, and different requirements are met.
Other features and advantages of the present invention will be disclosed in more detail in the following detailed description of the invention and the accompanying drawings.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic view of a rotor according to the present invention;
FIG. 2 is a schematic structural view of the magnetic member of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2;
fig. 4 is a magnetic induction line distribution diagram between two adjacent magnetic poles in the rotor of the present invention.
Reference numerals:
1 rotor core, 2 magnetic poles, 3 magnetic force pieces, 4N poles, 5S poles, 6 convex blocks, 7 grooves, 8 inclined sections, 9 arc sections, 10 arc chamfers, 11 annular hubs and 12 plastic pieces.
Detailed Description
Example one
As shown in fig. 1, 2, 3, and 4, a rotor includes a rotor core 1, a plurality of magnetic poles 2 are distributed on an outer circumferential surface of the rotor core 1, and magnetic members 3 for reinforcing magnetic fluxes of the magnetic poles 2 are disposed on two sides of a zero line of each two adjacent magnetic poles 2.
The magnetic flux of each magnetic pole 2 is strengthened by all setting up magnetic part 3 in the zero line both sides at two magnetic poles 2, because the enhancement of the magnetic flux of each magnetic pole 2, thereby the magnetic induction intensity that each magnetic pole 2 produced has been improved, thereby the rotation torque of whole rotor has been improved, under the condition of not changing the original size of rotor, through the rotation torque that improves whole rotor and the output of whole motor has been improved, the structure of whole rotor has been optimized, overall structure is simple, the installation and disassembly are convenient, secondly, magnetic part 3 sets up the zero line both sides at every two adjacent magnetic poles 2, can ensure the equilibrium of two adjacent magnetic poles 2 cutting magnetic line of force, finally, can set up the magnetic part 3 of different materials according to different application occasions and user demand, thereby satisfy different demands.
The magnetic member 3 comprises an N pole 4 and an S pole 5, the N pole 4 is arranged at one end of the magnetic member 3, the S pole 5 is arranged at the other end of the magnetic member 3, the N pole 4 or the S pole 5 of two adjacent magnetic members 3 are oppositely arranged, the outer contour of the magnetic member 3 is trapezoidal, a central angle a is formed between two inclined sides of the magnetic member 3, the central angle a is equal to 0-90 degrees, the magnetic member 3 can have a certain included angle with a magnetic induction line, the integral strength of the rotor is improved, the rotor is not deformed and cracked in a high-temperature and high-speed state, secondly, due to the fact that the included angle is arranged on the magnetic member, magnetic fields can be superposed between the magnetic member and the rotor core, the magnetic induction strength of each magnetic pole is improved, specifically, the magnetic induction strength of each magnetic pole 2 can be improved to 2200-2400 Gs from the original 1700-1800 Gs, finally, the central angle a is equal to 7-10 degrees, the central angle in this embodiment preferably adopts 8 °, and the whole processing is convenient.
Still be equipped with the lug 6 that upwards extends on the magnetic force piece 3, be equipped with the recess 7 of fixed magnetic pole 2 between lug 6 and the magnetic force piece 3, can realize the stable fixed of magnetic pole 2, avoid rotating radial rocking of in-process magnetic pole 2, recess 7 includes the slope section 8 of one section downward sloping and one section circular arc section 9 that is used for connecting slope section 8 and lug 6, the width of recess 7 equals 0.5mm, the radius of circular arc section 9 is 0.2mm, can realize the axis location and the radial positioning of magnetic pole 2 in recess 7, improves the fixed quality of magnetic pole 2, still be equipped with the circular arc chamfer 10 with 2 butts of magnetic pole on the magnetic force piece 3, can not only improve the fixed quality of magnetic pole 2, can realize the stress concentration at 3 both ends of magnetic force piece moreover, and circular arc chamfer 10 is convenient for the processing of magnetic force piece 3.
Example two
The embodiment also provides a motor, which comprises a stator and a rotor, wherein the rotor is the rotor in the first embodiment, and the output power of the whole motor is improved due to the improvement of the rotation torque of the rotor.
Other embodiments of the present invention than the preferred embodiments described above will be apparent to those skilled in the art from the present invention, and various changes and modifications can be made therein without departing from the spirit of the present invention as defined in the appended claims.
Claims (10)
1. The utility model provides a rotor, includes the rotor core, it has a plurality of magnetic poles to distribute on the outer periphery of rotor core, its characterized in that: and magnetic force pieces used for strengthening the magnetic flux of each magnetic pole are arranged on two sides of the zero line of each two adjacent magnetic poles.
2. A rotor according to claim 1, wherein: the magnetic force piece includes the N utmost point and the S utmost point, the N utmost point sets up the one end at the magnetic force piece, the S utmost point sets up the other end at the magnetic force piece, and the N utmost point or the S utmost point of two adjacent magnetic force pieces set up relatively.
3. A rotor according to claim 2, wherein: the outer contour of the magnetic part is trapezoidal, a central angle a is formed between two inclined edges of the magnetic part, and the central angle a is equal to 0-90 degrees.
4. A rotor according to claim 3, wherein: the central angle a is equal to 7-10 degrees.
5. A rotor according to claim 1, wherein: the magnetic part is also provided with a lug extending upwards, and a groove for fixing the magnetic pole is arranged between the lug and the magnetic part.
6. A rotor according to claim 5, wherein: the recess includes the slope section of one section downward sloping and one section circular arc section that is used for connecting slope section and lug, the width of recess equals 0.5mm, the radius of circular arc section is 0.2 mm.
7. A rotor according to claim 5, wherein: and the magnetic part is also provided with an arc chamfer abutted to the magnetic pole.
8. A rotor according to any one of claims 1 to 7, wherein: the rotor core further comprises a ring hub and a plastic part, the magnetic part is uniformly arranged on the outer circumferential wall of the plastic part, and the magnetic part is fixedly connected to the ring hub through the plastic part.
9. A rotor according to claim 8, wherein: the magnetic pole is magnetic powder or magnetic steel sheet or magnetic winding.
10. An electric machine comprising a stator and a rotor, characterized in that: the rotor is according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010656061.9A CN111786479A (en) | 2020-07-09 | 2020-07-09 | Rotor and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010656061.9A CN111786479A (en) | 2020-07-09 | 2020-07-09 | Rotor and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111786479A true CN111786479A (en) | 2020-10-16 |
Family
ID=72758720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010656061.9A Pending CN111786479A (en) | 2020-07-09 | 2020-07-09 | Rotor and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111786479A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101378213A (en) * | 2007-08-27 | 2009-03-04 | 崇贸科技股份有限公司 | Rotating shaft and motor rotor with the same |
| CN202513696U (en) * | 2012-01-22 | 2012-10-31 | 浙江大学 | Tangential permanent magnet synchronous motor rotor structure |
| CN105009416A (en) * | 2012-11-30 | 2015-10-28 | 阿塞里克股份有限公司 | A spoke permanent magnet rotor |
| CN108352745A (en) * | 2015-11-03 | 2018-07-31 | 三星电子株式会社 | Motor |
| CN109155556A (en) * | 2016-05-25 | 2019-01-04 | 大陆汽车有限责任公司 | Rotor and method for manufacturing rotor |
| CN212258566U (en) * | 2020-07-09 | 2020-12-29 | 金华九禾磁电科技有限公司 | Rotor and motor |
-
2020
- 2020-07-09 CN CN202010656061.9A patent/CN111786479A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101378213A (en) * | 2007-08-27 | 2009-03-04 | 崇贸科技股份有限公司 | Rotating shaft and motor rotor with the same |
| CN202513696U (en) * | 2012-01-22 | 2012-10-31 | 浙江大学 | Tangential permanent magnet synchronous motor rotor structure |
| CN105009416A (en) * | 2012-11-30 | 2015-10-28 | 阿塞里克股份有限公司 | A spoke permanent magnet rotor |
| CN108352745A (en) * | 2015-11-03 | 2018-07-31 | 三星电子株式会社 | Motor |
| CN109155556A (en) * | 2016-05-25 | 2019-01-04 | 大陆汽车有限责任公司 | Rotor and method for manufacturing rotor |
| CN212258566U (en) * | 2020-07-09 | 2020-12-29 | 金华九禾磁电科技有限公司 | Rotor and motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107276272B (en) | Surface-mounted motor, surface-mounted motor rotor and stator | |
| CN212258566U (en) | Rotor and motor | |
| CN109962551B (en) | Double-winding permanent magnet fault-tolerant motor | |
| CN111725919A (en) | Permanent magnet hybrid magnetizing rotor and motor | |
| CN111541326A (en) | Halbach array magnetic gathering type permanent magnet memory motor | |
| CN113949244A (en) | Single-tooth concentrated winding less-harmonic axial flux motor | |
| CN111786479A (en) | Rotor and motor | |
| CN110943557A (en) | Halbach array permanent magnet synchronous motor | |
| CN207442668U (en) | A kind of novel permanent magnetic synchronous motor of antisymmetry structure type | |
| CN206948063U (en) | Low torque fluctuates built-in permanent magnet motor rotor | |
| US20190140494A1 (en) | Electric motor with low cogging torque | |
| CN211629946U (en) | Built-in rotor and motor | |
| CN105262259A (en) | Permanent magnet motor rotor with nonuniform-distribution magnetic poles | |
| CN204906033U (en) | Permanent -magnet machine's rotor structure | |
| CN204741351U (en) | Rotor blade of silicon steel for PMSM | |
| CN204131245U (en) | Low noise type switched reluctance machines | |
| JP2000253633A (en) | Rotating machine | |
| CN207868887U (en) | A kind of high-speed permanent magnetic body synchronous motor rotor structure | |
| CN204761173U (en) | Vehicle -specific amorphous motor | |
| CN113036962A (en) | Low-cost lightweight alternating-pole permanent magnet motor | |
| CN112688518A (en) | Multi-disc type structure axial magnetic field mixed permanent magnet memory motor | |
| CN219204204U (en) | Stator core of motor stator | |
| CN214281054U (en) | Inner rotor permanent magnet motor with low-torque-ripple split stator structure | |
| WO2023108916A1 (en) | Stator assembly, motor, and electrical equipment | |
| CN204858786U (en) | Disk permanent -magnet machine and magnet steel thereof |
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 |