CN105958772A - Salient electromagnetic and embedded permanent magnet hybrid excitation drive motor for electric automobiles - Google Patents
Salient electromagnetic and embedded permanent magnet hybrid excitation drive motor for electric automobiles Download PDFInfo
- Publication number
- CN105958772A CN105958772A CN201610306579.3A CN201610306579A CN105958772A CN 105958772 A CN105958772 A CN 105958772A CN 201610306579 A CN201610306579 A CN 201610306579A CN 105958772 A CN105958772 A CN 105958772A
- Authority
- CN
- China
- Prior art keywords
- magnet steel
- rotor
- permanent
- permanent magnet
- rotor core
- 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
Classifications
-
- 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
-
- 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
- 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]
- H02K1/2766—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect
- H02K1/2773—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect consisting of tangentially magnetized radial magnets
-
- 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
- H02K21/04—Windings on magnets for additional excitation ; Windings and magnets for additional excitation
- H02K21/042—Windings on magnets for additional excitation ; Windings and magnets for additional excitation with permanent magnets and field winding both rotating
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/03—Machines characterised by aspects of the air-gap between rotor and stator
-
- 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 invention provides a salient electromagnetic and embedded permanent magnet hybrid excitation drive motor for electric automobiles, and belongs to the technical field of electric automobile motors and appliances. The drive motor is composed of a front end cover, a rear end cover, a case, a rotor, and a stator. Rectangular permanent magnet steel pieces are embedded into radial rectangular slots, and tile-shaped permanent magnet steel pieces are embedded into circular arc slots. The permanent magnet steel pieces can be effectively prevented from generating irreversible demagnetization under the armature reaction effect of impact current, and that the permanent magnet steel pieces do not lose magnetism is ensured. The magnetic field in the air gap of the drive motor is provided jointly by the permanent magnet steel pieces and an electric excitation winding. The magnetic field is strong, and the output power is high.
Description
Technical field
The present invention provides a kind of electric automobile salient pole electromagnetism to drive motor with embedded permanent magnetism mixing excitation, belongs to electric automobile
Electrical equipment and electrical 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, and the electric automobile salient pole electromagnetism that power density is high drives with embedded permanent magnetism mixing excitation
Galvanic electricity machine, its technology contents is:
Electric automobile salient pole electromagnetism and embedded permanent magnetism mixing excitation drive motor to be turned by drive end bearing bracket, rear end cap, casing, composite excitation
Son, stator composition, it is characterised in that: rotor with hybrid excitation by with carbon brush slip-ring structure salient pole electrical excitation rotor and embedded forever
Magnet rotor forms；
Built-in permanent magnet rotor is made up of every magnetic air gap axle, rectangle permanent-magnet steel, tile permanent-magnet steel, rotor core, fan annular, rotor ferrum
It is evenly equipped with even number on core and runs through the radial direction rectangular channel of rotor core thickness, the radially outer end of rectangular channel and the cylindrical of rotor core
Between do not connect, in the middle of the outer end of adjacent two radially rectangular channels, be provided with the inner arc surface running through rotor core thickness towards turning
The arc-shaped slot of sub-iron core cylindrical, arc-shaped slot does not connects with radially rectangular channel, outside the two ends of arc-shaped slot are with rotor core
Do not connect between circle, be provided with in the inner of each radial direction rectangular channel and run through the fan annular of rotor core thickness every magnetic air gap, phase
Adjacent fan annular does not connects every magnetic air gap, by rectangle permanent-magnet steel according to the N pole of adjacent two panels rectangle permanent-magnet steel, S the most relative with N
Pole and S extremely relative to mode be sequentially arranged at radially in rectangular channel, then tile permanent-magnet steel is pressed the polarity of inner arc surface with adjacent
The identical mode of polarity that formed of two panels rectangle permanent-magnet steel be sequentially arranged in arc-shaped slot, rotor 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 radial direction rectangular channel the present invention, and tile permanent-magnet steel is embedded in circle
In arcuate groove, it is possible to effectively prevent permanent-magnet steel from producing irreversible demagnetization under the armature-reaction effect of dash current, it is ensured that permanent magnetism
Steel not loss of excitation, drives the magnetic field in motor gas-gap jointly to be provided by permanent-magnet steel and electrical excitation winding, and magnetic field intensity is big, output
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 5, tile permanent-magnet steel 6, rotor core 7, fan annular are every magnetic
Air gap 8, 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 salient pole electromagnetism drives motor by drive end bearing bracket 9, rear end cap 1, casing 3 with embedded permanent magnetism mixing excitation, mixes and encourage
Magnet rotor, stator 4 form, it is characterised in that: rotor with hybrid excitation by with carbon brush slip-ring structure salient pole electrical excitation rotor and
Built-in permanent magnet rotor forms；
Built-in permanent magnet rotor is made up of every magnetic air gap 7 axle 2, rectangle permanent-magnet steel 8, tile permanent-magnet steel 5, rotor core 6, fan annular,
It is evenly equipped with even number on rotor core 6 and runs through the radial direction rectangular channel of rotor core 6 thickness, the radially outer end of rectangular channel and rotor ferrum
Do not connect between the cylindrical of core 6, in the middle of the outer end of adjacent two radial direction rectangular channels, be provided with the inner circle running through rotor core 6 thickness
Cambered surface is towards the arc-shaped slot of rotor core 6 cylindrical, and arc-shaped slot does not connects with radially rectangular channel, the two ends of arc-shaped slot with turn
Do not connect between the cylindrical of sub-iron core 6, be provided with the fan annular running through rotor core 6 thickness in the inner of each radial direction rectangular channel
Every magnetic air gap 7, adjacent fan annular does not connects every magnetic air gap 7, by rectangle permanent-magnet steel 8 according to adjacent two panels rectangle permanent-magnet steel 8
N pole and N extremely relative to, S pole and S extremely relative to mode be sequentially arranged at radially in rectangular channel, then by tile permanent-magnet steel 5 by inner circle
The mode that polarity that the polarity of cambered surface is formed with adjacent two panels rectangle permanent-magnet steel 8 is identical is sequentially arranged in arc-shaped slot, turns
Sub-iron core 6 is fitted on axle 2.
Claims (1)
1. electric automobile salient pole electromagnetism drives a motor with embedded permanent magnetism mixing excitation, by drive end bearing bracket (9), rear end cap (1), machine
Shell (3), rotor with hybrid excitation, stator (4) form, it is characterised in that: convex by with carbon brush slip-ring structure of rotor with hybrid excitation
Pole electrical excitation rotor and built-in permanent magnet rotor composition；
Built-in permanent magnet rotor by axle (2), rectangle permanent-magnet steel (8), tile permanent-magnet steel (5), rotor core (6), fan annular every magnetism
Gap (7) forms, and rotor core (6) is evenly equipped with even number and runs through the radial direction rectangular channel of rotor core (6) thickness, radially rectangular channel
Outer end and the cylindrical of rotor core (6) between do not connect, be provided with to run through in the middle of the outer end of adjacent two radially rectangular channels and turn
The inner arc surface of sub-iron core (6) thickness does not connects towards the arc-shaped slot of rotor core (6) cylindrical, arc-shaped slot with radially rectangular channel
Logical, do not connect between the two ends of arc-shaped slot and the cylindrical of rotor core (6), be provided with in the inner of each radial direction rectangular channel and pass through
The fan annular wearing rotor core (6) thickness does not connects every magnetic air gap (7), by rectangle permanent magnetism every magnetic air gap (7), adjacent fan annular
Steel (8) according to adjacent two panels rectangle permanent-magnet steel (8) N pole and N extremely relative to, S pole and S extremely relative to mode be sequentially arranged at footpath
In rectangular channel, then the pole that tile permanent-magnet steel (5) is formed with adjacent two panels rectangle permanent-magnet steel (8) by the polarity of inner arc surface
The mode that property is identical is sequentially arranged in arc-shaped slot, and rotor core (6) is fitted on axle (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610306579.3A CN105958772A (en) | 2016-05-11 | 2016-05-11 | Salient electromagnetic and embedded permanent magnet hybrid excitation drive motor for electric automobiles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610306579.3A CN105958772A (en) | 2016-05-11 | 2016-05-11 | Salient electromagnetic and embedded permanent magnet hybrid excitation drive motor for electric automobiles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105958772A true CN105958772A (en) | 2016-09-21 |
Family
ID=56914973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610306579.3A Pending CN105958772A (en) | 2016-05-11 | 2016-05-11 | Salient electromagnetic and embedded permanent magnet hybrid excitation drive motor for electric automobiles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105958772A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109905000A (en) * | 2019-04-23 | 2019-06-18 | 山东理工大学 | Radial and tangential permanent magnet magnetic pole mixed excitation electric machine method for production of rotor |
| CN109980808A (en) * | 2019-04-23 | 2019-07-05 | 山东理工大学 | Electromagnetism and built-in permanent magnetism mixing excitation driving motor method for production of rotor |
| CN109995165A (en) * | 2019-04-23 | 2019-07-09 | 山东理工大学 | Electric car salient pole electromagnetism and combined magnetic pole, mixed excitation driving motor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1213207A (en) * | 1997-09-29 | 1999-04-07 | 富士通将军股份有限公司 | Permanent magnet rotor type electric motor |
| CN2829205Y (en) * | 2005-09-21 | 2006-10-18 | 山东理工大学 | Tangential permament magnet and electromagnetic mixed excitation generator |
| JP2007068239A (en) * | 2005-08-29 | 2007-03-15 | Inp Institute Of Technology Co Ltd | Dynamo-electric machine and electromagnetic apparatus |
| US20080265705A1 (en) * | 2003-08-02 | 2008-10-30 | Yukio Kinoshita | Rotary Machine and Electromagnetic Machine |
| CN102664502A (en) * | 2012-04-21 | 2012-09-12 | 山东理工大学 | Mixed permanent magnet and electromagnetism compound excitation generator |
| CN102957240A (en) * | 2011-08-19 | 2013-03-06 | 台达电子企业管理（上海）有限公司 | Motor rotor and rotary motor containing same |
| US20130134820A1 (en) * | 2011-11-29 | 2013-05-30 | Delta Electronics (Shanghai) Co., Ltd. | Rotor and rotary electric machine containing the same |
-
2016
- 2016-05-11 CN CN201610306579.3A patent/CN105958772A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1213207A (en) * | 1997-09-29 | 1999-04-07 | 富士通将军股份有限公司 | Permanent magnet rotor type electric motor |
| US20080265705A1 (en) * | 2003-08-02 | 2008-10-30 | Yukio Kinoshita | Rotary Machine and Electromagnetic Machine |
| JP2007068239A (en) * | 2005-08-29 | 2007-03-15 | Inp Institute Of Technology Co Ltd | Dynamo-electric machine and electromagnetic apparatus |
| CN2829205Y (en) * | 2005-09-21 | 2006-10-18 | 山东理工大学 | Tangential permament magnet and electromagnetic mixed excitation generator |
| CN102957240A (en) * | 2011-08-19 | 2013-03-06 | 台达电子企业管理（上海）有限公司 | Motor rotor and rotary motor containing same |
| US20130134820A1 (en) * | 2011-11-29 | 2013-05-30 | Delta Electronics (Shanghai) Co., Ltd. | Rotor and rotary electric machine containing the same |
| CN102664502A (en) * | 2012-04-21 | 2012-09-12 | 山东理工大学 | Mixed permanent magnet and electromagnetism compound excitation generator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109905000A (en) * | 2019-04-23 | 2019-06-18 | 山东理工大学 | Radial and tangential permanent magnet magnetic pole mixed excitation electric machine method for production of rotor |
| CN109980808A (en) * | 2019-04-23 | 2019-07-05 | 山东理工大学 | Electromagnetism and built-in permanent magnetism mixing excitation driving motor method for production of rotor |
| CN109995165A (en) * | 2019-04-23 | 2019-07-09 | 山东理工大学 | Electric car salient pole electromagnetism and combined magnetic pole, mixed excitation driving motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160921 |