CN109995165A - Electric car salient pole electromagnetism and combined magnetic pole, mixed excitation driving motor - Google Patents
Electric car salient pole electromagnetism and combined magnetic pole, mixed excitation driving motor Download PDFInfo
- Publication number
- CN109995165A CN109995165A CN201910329689.5A CN201910329689A CN109995165A CN 109995165 A CN109995165 A CN 109995165A CN 201910329689 A CN201910329689 A CN 201910329689A CN 109995165 A CN109995165 A CN 109995165A
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- CN
- China
- Prior art keywords
- magnet
- magnetic pole
- rotor
- shaft
- electric car
- 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.)
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Classifications
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- 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
-
- 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
Abstract
The present invention discloses a kind of electric car salient pole electromagnetism and combined magnetic pole, mixed excitation driving motor, comprising: shell；Stator is hollow cylindrical structure, and is fixed in the shell；Shaft is rotatably disposed in the stator；The first rotor, for cylinder, and fixation is set in the shaft, and the first rotor internal circumferential is embedded with even number of poles, and it is rectangle that the magnetic pole, which includes: two the first magnet, and symmetrical and be arranged radially along the first rotor；Second magnet is rectangle, and the symmetry axis along two first magnet is vertically set among two first magnet；Third magnet is semi-circular shape, and the symmetry axis along two first magnet is vertically set among two first magnet, and is arranged on the outside of second magnet；Two magnet isolation tanks are arc groove, and center connects one to one with first magnet, and both ends extend to correspondence first magnet two sides.
Description
Technical field
The present invention relates to motor in electric automobile technical field of electric appliances, and more particularly, the present invention relates to a kind of electric cars
Salient pole electromagnetism and combined magnetic pole, mixed excitation driving motor.
Background technique
The rotor of the permanent magnet drive motor used on electric car at present mostly uses greatly the permanent magnet of radial structure and tangential
The disconnected structure of structure permanent magnet, such as prior art, patent name: permanent magnet slewing motor rotor, publication number: JP
Japanese Laid-Open Patent Publication 8-275419A discloses following technical solution, including rotor core, shaft, radial structure permanent magnet and tangential knot
The permanent magnet of structure is not connected between the permanent magnet left and right ends and the permanent magnet of radial structure of cutting orientation structure, leads to permanent magnet
Leakage field is serious, electric efficiency decline.
Summary of the invention
The present invention provides one kind to overcome drawbacks described above, connects each first magnet every magnetic air gap, and connect the second magnetic
One end of iron, leakage field is few, permanent magnetic field is powerful, the uniform electric car salient pole electromagnetism of Distribution of Magnetic Field and combined magnetic pole, mixed excitation
Driving motor.
Technical solution provided by the invention are as follows:
A kind of electric car salient pole electromagnetism and combined magnetic pole, mixed excitation driving motor characterized by comprising
Shell；And
Stator is hollow cylindrical structure, and is fixed in the shell；
Shaft is rotatably disposed in the stator；
The first rotor, to be cylindrical, and fixation is set in the shaft, and the first rotor internal circumferential is embedded with even number
A magnetic pole, the magnetic pole include:
Two the first magnet, are rectangle, and symmetrical and be arranged radially along the first rotor；
Second magnet is rectangle, is vertically set on two first magnet along the symmetry axis of two first magnet
It is intermediate；
Third magnet is semi-circular shape, is symmetricly set on two described first along the symmetry axis of two first magnet
Among magnet, and it is arranged on the outside of second magnet；
Two magnet isolation tanks are arc groove, and center connects one to one with first magnet, and both ends are to correspondence described first
Magnet two sides extend；
Wherein, second magnet one end is connect with the adjacent magnet isolation tank, and the other end and the adjacent magnet isolation tank interval are arranged；
The two neighboring magnetic pole shares first magnet and magnet isolation tank, and each magnet isolation tank only with one described second
Magnet connection.
Preferably, in the magnetic pole, the center of second magnet is less than institute at a distance from the center of the shaft
The center of the first magnet is stated at a distance from the center of the shaft；The center at the center and shaft of second magnet away from
On the inside of greater than first magnet at a distance from the center of the shaft；The radical length of second magnet is less than described the
The radical length of one magnet.
Preferably, in the magnetic pole, on the inside of the axial length of second magnet the first magnet described less than two
The distance between；The diameter of the third magnet is consistent with the axial length of second magnet.
Preferably, in the magnetic pole, far from second magnet first magnet side polarity with it is described
Polarity on the outside of second magnet is opposite；The polarity of second magnet in the two neighboring magnetic pole is opposite.
Preferably, in the magnetic pole, the cambered surface of the third magnet is oppositely arranged with second magnet；It is described every
The concave surface of magnetic slot is connected with the inside of corresponding first magnet.
Preferably, 1.4 ~ 1.6mm is divided between the second magnet other end and the corresponding magnet isolation tank.
Preferably, 1.5mm is divided between the second magnet other end and the corresponding magnet isolation tank.
Preferably, further includes:
Second rotor, to be cylindrical, and in the fixed shaft for being set in the close the first rotor；
Wherein, second rotor is the Lundell electrical excitation rotor with carbon brush slip-ring structure.
Preferably, further includes:
Drive end bearing bracket is fixed at described shell one end；
Rear end cap is fixed at the shell other end；
Wherein, the shaft is rotatably disposed on the drive end bearing bracket and the rear end cap.
A kind of electric car salient pole electromagnetism and combined magnetic pole, mixed excitation driving motor, comprising:
Shell；And
Stator is hollow cylindrical structure, and is fixed in the shell；
Shaft is rotatably disposed in the stator；
The first rotor, to be cylindrical, and fixation is set in the shaft, and the first rotor internal circumferential is embedded with even number
A magnetic pole；
Second rotor, to be cylindrical, and in the fixed shaft for being set in the close the first rotor；
Wherein, the magnetic pole is made of multiple permanent magnets；Second rotor is that the Lundell electricity with carbon brush slip-ring structure is encouraged
Magnet rotor.
It is of the present invention the utility model has the advantages that
The present invention has designed and developed a kind of electric car electromagnetism and built-in permanent magnet combination formula magnetic pole composite excitation driving motor, adjacent
The permanent magnet of inner setting cutting orientation structure among the permanent magnet of two radial structures, the permanent magnet inner end of radial structure and to tangential
It is extended at the permanent magnet of structure every magnetic air gap, dramatically reduces permanent magnet brow leakage every magnetic air gap, while the
The presence of two magnet and third magnet, so that the magnetic field of every pole is in Sine distribution.
Detailed description of the invention
Fig. 1 is that the sectional structure of electric car salient pole electromagnetism of the present invention and built-in permanent magnetism mixing excitation driving motor shows
It is intended to；
Fig. 2 is the schematic cross-sectional view of the first rotor of the present invention.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art referring to specification text
Word can be implemented accordingly.
As shown in Figure 1, the present invention provides a kind of electric car salient pole electromagnetism and combined magnetic pole, mixed excitation driving motor,
It is made of drive end bearing bracket 200, rear end cap 300, shell 100, rotor with hybrid excitation, stator 110, above-mentioned rotor with hybrid excitation is by having
The Lundell electrical excitation rotor (the second rotor) of carbon brush slip-ring structure and built-in permanent magnet combination formula pole wheel (the first rotor) group
At.
Stator 110 is hollow cylindrical structure, and is fixed in shell 100；Inside stator 110, through fixed
110 axis are rotatable is provided with shaft 120 for son；Fixing sleeve is equipped with the first rotor 130 in shaft 120, can for cylinder
Shaft 120 is driven to rotate together with, which is embedded with even number of poles 140, can effectively prevent permanent magnetism
Steel generates irreversible demagnetization under the armature-reaction effect of dash current, guarantees permanent-magnet steel not loss of excitation.
As shown in Fig. 2, the magnetic pole 140 includes: two the first magnet 141, and it is rectangle, it is radial along the first rotor 130
Setting, and two the first magnet 141 are symmetrical arranged, and symmetry axis is a diameter of the first rotor, the outside of the first magnet 141
The outer circumference surface of (i.e. outer end face) and the first rotor 130 is not attached to；The second magnet is provided among two the first magnet 141
142, it is rectangle, and second magnet 142 is vertical with above-mentioned symmetry axis, and equally along the symmetrical axial symmetry.Third magnet
143, it is semi-circular shape, it is vertical along the symmetry axis of two the first magnet 141 and be symmetricly set in two the first magnet 141
Between, and the third magnet 143 setting, in 142 outside of the second magnet, the cambered surface of third magnet 143 is opposite with the second magnet 142
Setting, and the outside (i.e. outer end face) of third magnet 143 and the outer circumference surface of the first rotor 130 are not attached to.Two magnet isolation tanks
144, be arc groove, and center connect one to one with the first magnet 141 (i.e. each first magnet 141 it is corresponding one every
Magnetic slot 144), and 144 both ends of magnet isolation tank are extended by corresponding to lateral first magnet, 141 two sides in the first magnet 141, and should be every magnetic
Slot 144 runs through the first rotor 130.
Second magnet, 141 one end is connect with adjacent magnet isolation tank 144, and the other end and adjacent magnet isolation tank 144 interval are arranged；This reality
Apply in example, two neighboring magnetic pole 140 shares first magnet 141 and magnet isolation tank 144, and each magnet isolation tank 144 only with one
Second magnet 142 connection, as shown in Fig. 2, the left side of i.e. magnet isolation tank 144 extends to the second magnet in the adjacent pole 140 of left side
142 right end, the left side of magnet isolation tank 144 are connected with the right end of the second magnet 142 in left side adjacent pole 140, magnet isolation tank 144
Right side extend to right side adjacent pole 140 in the second magnet 142 left side, the right side of magnet isolation tank 144 magnetic adjacent with right side
The left side of the second magnet 142 in pole 140 is not attached to.It is divided into 1.4 between second magnet, 142 other end and corresponding magnet isolation tank 144 ~
1.6mm, it is preferred that be divided into 1.5mm between 142 other end of the second magnet and corresponding magnet isolation tank 144.
In each magnetic pole 140, the center of the second magnet 142 is at a distance from the center of shaft 120 less than the first magnet 141
Center at a distance from the center of shaft 120；The center of second magnet 142 is greater than the first magnetic at a distance from the center of shaft 120
141 inside (inner side end) of iron is at a distance from the center of shaft 120；The radical length of second magnet 142 is less than the first magnet 141
Radical length (i.e. magnetizing direction thickness of the magnetizing direction thickness of the second magnet 142 less than the first magnet 141).
In each magnetic pole 140, between 141 inside of less than two the first magnet of axial length of the second magnet 142 away from
From；The diameter of third magnet 143 is consistent with the axial length of the second magnet 142, i.e., the second magnet 142 is perpendicular to magnetizing direction
On the inside of less than two the first magnet of length 141 between length, the diameter of third magnet 143 is equal to the second magnet 142 and exists
Perpendicular to the length on magnetizing direction.So that the magnetic potential that each second magnet 142, third magnet 143 generate is gathered in rotor iron
The intermediate position of each magnetic pole 140 of 130 excircle of core (i.e. the first rotor), and the length at intermediate position is less than or equal to the second magnet
142 axial length, while to be generated in the second magnet 142,143 left and right ends part of third magnet by the first magnet 141
Magnetic potential be ostracised to be gathered in the 130 each magnetic pole of excircle of rotor core (the first rotor) intermediate position two sides, make
It obtains every pole excitation field to be uniformly distributed, counter electromotive force harmonic wave is minimized.
In each magnetic pole 140, outside the polarity of 141 side of the first magnet far from the second magnet 142 and the second magnet 142
The polarity of side is opposite；The polarity of the second magnet 142 in two neighboring magnetic pole 140 is opposite.
Second rotor 150, to be cylindrical, and in the fixed shaft 120 for being set in the close the first rotor 130；Institute
Stating the second rotor 150 is the Lundell electrical excitation rotor with carbon brush slip-ring structure.This has the Lundell of carbon brush slip-ring structure
Electrical excitation rotor is electrical excitation rotor commonly used in the prior art, therefore this will not be repeated here for its specific structure.
Further include drive end bearing bracket 200 in the present embodiment, is fixed at 100 one end of shell；It is solid in 100 other end of shell
Surely it is provided with rear end cap 300, shaft 120 is rotatably disposed on drive end bearing bracket 200 and rear end cap.
Working principle:
When driving motor is passed through by three-phase inverter after the three-phase alternating current of pulsewidth modulation, the stator of driving motor generates space
Rotating excitation field, it and magnetic field interaction caused by rotor, rotor generate and the consistent rotation in stator winding rotating excitation field direction
It walks around square, rotates the rotor of driving motor, and then drive electric car operation.
The electric car salient pole electromagnetism and combined magnetic pole, mixed excitation driving motor that the present invention designs and develops, driving motor
Magnetic field in air gap is provided jointly by permanent-magnet steel and electrical excitation winding, and permanent magnet is embedded in the first rotor, and devises permanent magnetism
The distribution mode of body can effectively prevent permanent-magnet steel to generate irreversible demagnetization under the armature-reaction effect of dash current, guarantee
Permanent-magnet steel not loss of excitation, magnetic field strength is big, and output power is high.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (10)
1. a kind of electric car salient pole electromagnetism and combined magnetic pole, mixed excitation driving motor characterized by comprising
Shell；And
Stator is hollow cylindrical structure, and is fixed in the shell；
Shaft is rotatably disposed in the stator；
The first rotor, to be cylindrical, and fixation is set in the shaft, and the first rotor internal circumferential is embedded with even number
A magnetic pole, the magnetic pole include:
Two the first magnet, are rectangle, and symmetrical and be arranged radially along the first rotor；
Second magnet is rectangle, is vertically set on two first magnet along the symmetry axis of two first magnet
It is intermediate；
Third magnet is semi-circular shape, is vertically set on two described first along the symmetry axis of two first magnet
Among magnet, and it is arranged on the outside of second magnet；
Two magnet isolation tanks are arc groove, and center connects one to one with first magnet, and both ends are to correspondence described first
Magnet two sides extend；
Wherein, second magnet one end is connect with the adjacent magnet isolation tank, and the other end and the adjacent magnet isolation tank interval are arranged；
The two neighboring magnetic pole shares first magnet and magnet isolation tank, and each magnet isolation tank only with one described second
Magnet connection.
2. electric car salient pole electromagnetism as described in claim 1 and combined magnetic pole, mixed excitation driving motor, feature exist
In in the magnetic pole, the center of second magnet is less than in first magnet at a distance from the center of the shaft
The heart is at a distance from the center of the shaft；The center of second magnet is greater than described first at a distance from the center of the shaft
On the inside of magnet at a distance from the center of the shaft；The radial direction that the radical length of second magnet is less than first magnet is long
Degree.
3. electric car salient pole electromagnetism as claimed in claim 2 and combined magnetic pole, mixed excitation driving motor, feature exist
In in the magnetic pole, the distance between on the inside of the axial length of second magnet the first magnet described less than two；It is described
The diameter of third magnet is consistent with the axial length of second magnet.
4. electric car salient pole electromagnetism as claimed in claim 3 and combined magnetic pole, mixed excitation driving motor, feature exist
In in the magnetic pole, on the outside of the polarity of first magnet side far from second magnet and second magnet
Polarity is opposite；The polarity of second magnet in the two neighboring magnetic pole is opposite.
5. electric car salient pole electromagnetism as claimed in claim 4 and combined magnetic pole, mixed excitation driving motor, feature exist
In in the magnetic pole, the cambered surface of the third magnet is oppositely arranged with second magnet, the cambered surface of the third magnet
Polarity and the polarity of the second magnet opposite face are reversed；The concave surface of the magnet isolation tank is interior with corresponding first magnet
Side connection.
6. electric car salient pole electromagnetism as claimed in claim 5 and combined magnetic pole, mixed excitation driving motor, feature exist
In being divided into 1.4 ~ 1.6mm between the second magnet other end and the corresponding magnet isolation tank.
7. electric car salient pole electromagnetism as claimed in claim 6 and combined magnetic pole, mixed excitation driving motor, feature exist
In being divided into 1.5mm between the second magnet other end and the corresponding magnet isolation tank.
8. electric car salient pole electromagnetism and combined magnetic pole, mixed excitation driving electricity as described in any one of claim 1-7
Machine, which is characterized in that further include:
Second rotor, to be cylindrical, and in the fixed shaft for being set in the close the first rotor；
Wherein, second rotor is the Lundell electrical excitation rotor with carbon brush slip-ring structure.
9. electric car salient pole electromagnetism as claimed in claim 8 and combined magnetic pole, mixed excitation driving motor, feature exist
In, further includes:
Drive end bearing bracket is fixed at one end of the shell；
Rear end cap is fixed at the other end of the shell；
Wherein, the shaft is rotatably disposed on the drive end bearing bracket and the rear end cap.
10. a kind of electric car salient pole electromagnetism and combined magnetic pole, mixed excitation driving motor characterized by comprising
Shell；And
Stator is hollow cylindrical structure, and is fixed in the shell；
Shaft is rotatably disposed in the stator；
The first rotor, to be cylindrical, and fixation is set in the shaft, and the first rotor internal circumferential is embedded with even number
A magnetic pole；
Second rotor, to be cylindrical, and in the fixed shaft for being set in the close the first rotor；
Wherein, the magnetic pole is made of multiple permanent magnets；Second rotor is that the Lundell electricity with carbon brush slip-ring structure is encouraged
Magnet rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910329689.5A CN109995165A (en) | 2019-04-23 | 2019-04-23 | Electric car salient pole electromagnetism and combined magnetic pole, mixed excitation driving motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910329689.5A CN109995165A (en) | 2019-04-23 | 2019-04-23 | Electric car salient pole electromagnetism and combined magnetic pole, mixed excitation driving motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109995165A true CN109995165A (en) | 2019-07-09 |
Family
ID=67135012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910329689.5A Pending CN109995165A (en) | 2019-04-23 | 2019-04-23 | Electric car salient pole electromagnetism and combined magnetic pole, mixed excitation driving motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109995165A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202183644U (en) * | 2011-08-22 | 2012-04-04 | 高国华 | Permanent magnet ring |
| CN102647065A (en) * | 2012-04-21 | 2012-08-22 | 山东理工大学 | Brushless electromagnetic hybrid-magnetic-circuit hybrid excitation generator |
| CN105846569A (en) * | 2016-05-11 | 2016-08-10 | 山东理工大学 | Electric automobile electromagnetic and built-in permanent magnet combined magnetic pole hybrid excitation driving motor |
| CN105958772A (en) * | 2016-05-11 | 2016-09-21 | 山东理工大学 | Salient electromagnetic and embedded permanent magnet hybrid excitation drive motor for electric automobiles |
| EP3410574A1 (en) * | 2017-06-02 | 2018-12-05 | Hamilton Sundstrand Corporation | Hybrid synchronous machines |
-
2019
- 2019-04-23 CN CN201910329689.5A patent/CN109995165A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202183644U (en) * | 2011-08-22 | 2012-04-04 | 高国华 | Permanent magnet ring |
| CN102647065A (en) * | 2012-04-21 | 2012-08-22 | 山东理工大学 | Brushless electromagnetic hybrid-magnetic-circuit hybrid excitation generator |
| CN105846569A (en) * | 2016-05-11 | 2016-08-10 | 山东理工大学 | Electric automobile electromagnetic and built-in permanent magnet combined magnetic pole hybrid excitation driving motor |
| CN105958772A (en) * | 2016-05-11 | 2016-09-21 | 山东理工大学 | Salient electromagnetic and embedded permanent magnet hybrid excitation drive motor for electric automobiles |
| EP3410574A1 (en) * | 2017-06-02 | 2018-12-05 | Hamilton Sundstrand Corporation | Hybrid synchronous machines |
Non-Patent Citations (1)
| Title |
|---|
| 马世伦: ""电动汽车新型永磁同步电机的非均匀气隙建模及性能分析"", 《西安交通大学学报》 * |
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Application publication date: 20190709 |