CN105871152A - Claw-pole electromagnetic and built-in biradial permanent magnet driving motor for electric automobile - Google Patents
Claw-pole electromagnetic and built-in biradial permanent magnet driving motor for electric automobile Download PDFInfo
- Publication number
- CN105871152A CN105871152A CN201610306646.1A CN201610306646A CN105871152A CN 105871152 A CN105871152 A CN 105871152A CN 201610306646 A CN201610306646 A CN 201610306646A CN 105871152 A CN105871152 A CN 105871152A
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- China
- Prior art keywords
- magnet steel
- rotor
- shape
- pole
- inverted
- 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
- 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
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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
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
-
- 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
- H02K21/02—Details
- H02K21/021—Means for mechanical adjustment of the excitation flux
- H02K21/028—Means for mechanical adjustment of the excitation flux by modifying the magnetic circuit within the field or the armature, e.g. by using shunts, by adjusting the magnets position, by vectorial combination of field or armature sections
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
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- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention provides a claw-pole electromagnetic and built-in biradial permanent magnet driving motor for an electric automobile, and belongs to the technical field of motors and electric appliances for electric automobiles. The driving motor is composed of a front end cover, a rear end cover, a motor shell, a rotor and a stator, and rectangular permanent magnet steel parts are embedded in first rectangular grooves and second rectangular grooves respectively; irreversible demagnetization, produced under the armature reaction action of an impact current, of the permanent magnet steel parts can be effectively prevented, it is guaranteed that the permanent magnet steel parts do not lose magnetism, a magnetic field in air gaps of the driving motor is provided by the permanent magnet steel parts and electric exciting windings jointly, the magnetic field intensity is large, and the output power is high.
Description
Technical field
The present invention provides a kind of electric automobile pawl pole electromagnetism and built-in biradial permanent magnet drive motor, belongs to electric automobile electricity
Machine electric appliance technical field.
Background technology
The rotor of the permanent magnet drive motor used on electric automobile at present uses the outer damascene structures of permanent magnet mostly, as existing
There is technology, patent name: brushless DC motor rotor, the patent No.: ZL200920116549.1, disclose following technical scheme,
Including rotor core, rotating shaft and permanent magnet, rotor core is made up of punching superposition and is connected, and rotating shaft is fixed with rotor core
Connecting, the outer surface of rotor core is evenly distributed with even number T-shaped voussoir, constitutes slot, permanent magnet pair between adjacent T-shaped voussoir
Should be embedded in slot, the permanent magnet of this construction rotor is directly facing air gap, under the armature-reaction effect of dash current, and may
Producing irreversible demagnetization, permanent magnet once forms irreversible demagnetization, drives electric efficiency to reduce, and power, moment of torsion decline rapidly, its
Serviceability needs further improvement.
Summary of the invention
It is an object of the invention to provide one and can overcome drawbacks described above, drive the magnetic field in motor gas-gap by permanent-magnet steel and electricity
Exciting Windings for Transverse Differential Protection provides jointly, and magnetic field intensity is big, electric automobile pawl pole electromagnetism that power density is high and built-in biradial permanent magnetic drive
Motor, its technology contents is:
Electric automobile pawl pole electromagnetism is turned by drive end bearing bracket, rear end cap, casing, composite excitation with built-in biradial permanent magnet drive motor
Son, stator composition, it is characterised in that: rotor with hybrid excitation is by with the Lundell electrical excitation rotor of carbon brush slip-ring structure and built-in
Biradial p-m rotor forms；
Built-in biradial p-m rotor by axle, the first rectangle permanent-magnet steel, the second rectangle permanent-magnet steel, rotor core, every magnetic air gap group
Become, rotor core is evenly equipped with even number and runs through rotor core thickness and the inverted "eight" shape formed by two the first rectangular channels
Groove, is provided with in the middle of inverted "eight" shape groove the inner of two the first rectangular channel formation and runs through rotor core thickness and by two the second squares
The positive "eight" shape groove that shape groove is formed, the outer end of two the second rectangular channels forming positive "eight" shape groove does not connects, the first rectangle
Do not connect between outer end and the cylindrical of rotor core of groove, the first rectangular channel outer end of two adjacent formation inverted "eight" shape grooves
Do not connect, be jointly provided with in the inner of the inner of each first rectangular channel and adjacent second rectangular channel and run through rotor core thickness
Every magnetic air gap, all connect with the inner of the first rectangular channel and the inner of the second rectangular channel every the outer end of magnetic air gap, adjacent every magnetic
Air gap does not connects；
Identical two panels the first rectangle permanent-magnet steel is respectively placed at being formed by two the first rectangular channels of rotor core
In inverted "eight" shape groove and the inner side of inverted "eight" shape that formed of two panels the first rectangle permanent-magnet steel is N pole, by identical
In the middle of inverted "eight" shape the inner that inner side is N pole that two panels the second rectangle permanent-magnet steel is respectively placed on rotor core by two
In the positive "eight" shape groove that second rectangular channel is formed and the outside of positive "eight" shape that formed of two panels the second rectangle permanent-magnet steel is N
Pole, more identical other two panels the first rectangle permanent-magnet steel is respectively placed at rotor core adjacent by two other first
In the inverted "eight" shape groove that rectangular channel is formed and the inner side of inverted "eight" shape that formed of two panels the first rectangle permanent-magnet steel is S pole,
The inverted "eight" shape that inner side is S pole that identical other two panels the second rectangle permanent-magnet steel is respectively placed on rotor core
In the positive "eight" shape groove formed by two other second rectangular channel in the middle of inner and two panels the second rectangle permanent-magnet steel is formed
The outside of positive "eight" shape is S pole, the like, form N pole, the most spaced built-in biradial p-m rotor of S, rotor
Iron core is fitted on axle.
Operation principle: when driving motor to be passed through by three-phase inverter after the three-phase alternating current of pulsewidth modulation, drive motor
Stator produces space rotating magnetic field, and it is magnetic field interaction produced by with rotor, and rotor produces and stator winding rotating excitation field
The rotating torques that direction is consistent, makes driving rotor rotate, and then drives electric automobile to run.
Compared with prior art, rectangle permanent-magnet steel is embedded in the first rectangular channel and the second rectangular channel the present invention respectively, energy
Enough effectively prevent permanent-magnet steel from producing irreversible demagnetization under the armature-reaction effect of dash current, it is ensured that permanent-magnet steel not loss of excitation, drive
Magnetic field in dynamic motor gas-gap is provided jointly by permanent-magnet steel and electrical excitation winding, and magnetic field intensity is big, and output is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the p-m rotor profile of embodiment illustrated in fig. 1.
In figure: 1, rear end cap 2, axle 3, casing 4, stator the 5, first rectangle permanent-magnet steel 6, rotor core 7, every magnetism
Gap the 8, second rectangle permanent-magnet steel 9, drive end bearing bracket.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings:
Electric automobile pawl pole electromagnetism and built-in biradial permanent magnet drive motor are by drive end bearing bracket 9, rear end cap 1, casing 3, composite excitation
Rotor, stator 4 form, it is characterised in that: rotor with hybrid excitation by with carbon brush slip-ring structure Lundell electrical excitation rotor and
Built-in biradial p-m rotor forms；
Built-in biradial p-m rotor by axle the 2, first rectangle permanent-magnet steel the 5, second rectangle permanent-magnet steel 8, rotor core 6, every magnetism
Gap 7 forms, and rotor core 6 is evenly equipped with even number and runs through rotor core 6 thickness and by falling that two the first rectangular channels are formed
"eight" shape groove, two first rectangular channel formed inverted "eight" shape groove the inner in the middle of be provided with run through rotor core 6 thickness and by
The positive "eight" shape groove that two the second rectangular channels are formed, the outer end of two the second rectangular channels forming positive "eight" shape groove does not connects
Logical, do not connect between the outer end of the first rectangular channel and the cylindrical of rotor core 6, the of two adjacent formation inverted "eight" shape grooves
One rectangular channel outer end does not connects, be jointly provided with in the inner of the inner of each first rectangular channel and adjacent second rectangular channel run through turn
Sub-iron core 6 thickness every magnetic air gap 7, every the outer end of magnetic air gap 7 and the inner of the first rectangular channel and the second rectangular channel inner all
Connection, adjacent does not connects every magnetic air gap 7；
Identical two panels the first rectangle permanent-magnet steel 5 is respectively placed at being formed by two the first rectangular channels of rotor core 6
Inverted "eight" shape groove in and the inner side of inverted "eight" shape that formed of two panels the first rectangle permanent-magnet steel 5 be N pole, by identical
Inverted "eight" shape the inner that inner side is N pole of being respectively placed on rotor core 6 of two panels the second rectangle permanent-magnet steel 8 in the middle of by
In the positive "eight" shape groove that two the second rectangular channels are formed and the outside of positive "eight" shape that formed of two panels the second rectangle permanent-magnet steel 8
Be N pole, more identical other two panels the first rectangle permanent-magnet steel 5 is respectively placed at rotor core 6 adjacent by additionally
In the inverted "eight" shape groove that two the first rectangular channels are formed and the inner side of inverted "eight" shape that formed of two panels the first rectangle permanent-magnet steel 5
Being S pole, the inner side being respectively placed on rotor core 6 by identical other two panels the second rectangle permanent-magnet steel 8 is S pole
In the positive "eight" shape groove formed by two other second rectangular channel in the middle of inverted "eight" shape the inner and two panels the second rectangle forever
The outside of the positive "eight" shape that magnet steel 8 is formed is S pole, the like, form N pole, the most spaced built-in biradial of S forever
Magnet rotor, rotor core 6 is fitted on axle 2.
Claims (1)
1. electric automobile pawl pole electromagnetism and a built-in biradial permanent magnet drive motor, by drive end bearing bracket (9), rear end cap (1), casing
(3), rotor with hybrid excitation, stator (4) composition, it is characterised in that: rotor with hybrid excitation is by the pawl pole with carbon brush slip-ring structure
Formula electrical excitation rotor and built-in biradial p-m rotor composition；
Built-in biradial p-m rotor is by axle (2), the first rectangle permanent-magnet steel (5), the second rectangle permanent-magnet steel (8), rotor core
(6), form every magnetic air gap (7), rotor core (6) is evenly equipped with even number and runs through rotor core (6) thickness and by two first
The inverted "eight" shape groove that rectangular channel is formed, is provided with in the middle of inverted "eight" shape groove the inner of two the first rectangular channel formation and runs through rotor
Iron core (6) thickness and the positive "eight" shape groove formed by two the second rectangular channels, form two the second squares of positive "eight" shape groove
The outer end of shape groove does not connects, and does not connects between the outer end of the first rectangular channel and the cylindrical of rotor core (6), two adjacent formation
First rectangular channel outer end of inverted "eight" shape groove does not connects, in the inner of each first rectangular channel and adjacent second rectangular channel
End be jointly provided with run through rotor core (6) thickness every magnetic air gap (7), interior every the outer end of magnetic air gap (7) and the first rectangular channel
End all connects with the inner of the second rectangular channel, and adjacent does not connects every magnetic air gap (7)；
Identical two panels the first rectangle permanent-magnet steel (5) is respectively placed at rotor core (6) by two the first rectangular channels
In the inverted "eight" shape groove formed and the inner side of inverted "eight" shape that formed of two panels the first rectangle permanent-magnet steel (5) is N pole, by complete
Exactly the same two panels the second rectangle permanent-magnet steel (8) is respectively placed in the inverted "eight" shape that inner side is N pole on rotor core (6)
End in the middle of the positive "eight" shape groove formed by two the second rectangular channels in and two panels the second rectangle permanent-magnet steel (8) just formed
The outside of "eight" shape is N pole, more identical other two panels the first rectangle permanent-magnet steel (5) is respectively placed at rotor ferrum
In the inverted "eight" shape groove formed by two other first rectangular channel that core (6) is adjacent and two panels the first rectangle permanent-magnet steel (5) shape
The inner side of the inverted "eight" shape become is S pole, identical other two panels the second rectangle permanent-magnet steel (8) is respectively placed at and turns
Just " eight " that formed by two other second rectangular channel in the middle of inverted "eight" shape the inner that inner side is S pole on sub-iron core (6)
In font groove and the outside of positive "eight" shape that formed of two panels the second rectangle permanent-magnet steel (8) is S pole, the like, form N
Pole, the most spaced built-in biradial p-m rotor of S, rotor core (6) is fitted on axle (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610306646.1A CN105871152A (en) | 2016-05-11 | 2016-05-11 | Claw-pole electromagnetic and built-in biradial permanent magnet driving motor for electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610306646.1A CN105871152A (en) | 2016-05-11 | 2016-05-11 | Claw-pole electromagnetic and built-in biradial permanent magnet driving motor for electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105871152A true CN105871152A (en) | 2016-08-17 |
Family
ID=56631608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610306646.1A Pending CN105871152A (en) | 2016-05-11 | 2016-05-11 | Claw-pole electromagnetic and built-in biradial permanent magnet driving motor for electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105871152A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932843A (en) * | 2016-05-13 | 2016-09-07 | 山东理工大学 | Biradial permanent magnet and brushless electromagnetic hybrid excitation drive motor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202034839U (en) * | 2011-04-18 | 2011-11-09 | 无锡新大力电机有限公司 | Magnetic field rotor punch with high air gap magnetic flux density |
| CN204168022U (en) * | 2014-11-10 | 2015-02-18 | 山东理工大学 | Brushless electromagnetism and permanent magnetism mixing excitation generator |
-
2016
- 2016-05-11 CN CN201610306646.1A patent/CN105871152A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202034839U (en) * | 2011-04-18 | 2011-11-09 | 无锡新大力电机有限公司 | Magnetic field rotor punch with high air gap magnetic flux density |
| CN204168022U (en) * | 2014-11-10 | 2015-02-18 | 山东理工大学 | Brushless electromagnetism and permanent magnetism mixing excitation generator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932843A (en) * | 2016-05-13 | 2016-09-07 | 山东理工大学 | Biradial permanent magnet and brushless electromagnetic hybrid excitation drive motor |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160817 |
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| WD01 | Invention patent application deemed withdrawn after publication |