CN105790476A - Built-in tangential and radial permanent magnet steel combined-type magnetic pole drive motor for electric automobile - Google Patents
Built-in tangential and radial permanent magnet steel combined-type magnetic pole drive motor for electric automobile Download PDFInfo
- Publication number
- CN105790476A CN105790476A CN201610306658.4A CN201610306658A CN105790476A CN 105790476 A CN105790476 A CN 105790476A CN 201610306658 A CN201610306658 A CN 201610306658A CN 105790476 A CN105790476 A CN 105790476A
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- CN
- China
- Prior art keywords
- magnet steel
- rotor
- drive motor
- rotor core
- tangential
- 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
-
- 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]
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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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc Machiner (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention provides a built-in tangential and radial permanent magnet steel combined-type magnetic pole drive motor for an electric automobile, and belongs to the technical field of electric automobile motors and electric appliances. The drive motor consists of a front end cover, a rear end cover, a motor case, a rotor, and a stator. A rotor of the drive motor is a built-in tangential and radial permanent magnet steel combined-type magnetic pole permanent magnet rotor, is large in magnetic field intensity, and is high in power density. The drive motor is in a rotor magnetic bypass structure, can effectively prevent permanent magnet steels from generating irreversible demagnetization under the action of armature reaction of an impact current, and guarantees that the permanent magnet steels cannot be demagnetized. Moreover, the drive motor does not need an electric exciting winding, is small in electric energy consumption, has no carbon brush and mechanical commutator, is low in fault rate, is compact in structure, and is reliable in work.
Description
Technical field
The present invention provides a kind of electric automobile built-in tangential and radial permanent magnet steel combination type magnetic pole drive motor, belongs to motor in electric automobile technical field of electric appliances.
Background technology
Current and the matching used drive motor of electric automobile mostly adopts the direct current generator with carbon brush and mechanical commutator, although DC motor structure is simple, controllability is high, speed-regulating range width, control circuit is relatively easy, less costly, but owing to the magnetic field of direct-drive motor is produced by electricity Exciting Windings for Transverse Differential Protection, power consumption is many, delivery efficiency is low, additionally, due to there is carbon brush and mechanical commutator, not only limit the raising of drive motor overload capacity and speed, if long-play, certainly will be required frequent maintenance and replacement carbon brush and diverter, therefore direct current generator energy consumption is big, fault rate is high, 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 motor rotor field is provided by permanent-magnet steel, few without electricity Exciting Windings for Transverse Differential Protection, power consumption, not having carbon brush and electric automobile built-in tangential and the radial permanent magnet steel combination type magnetic pole drive motor of mechanical commutator, failure rate is low, its technology contents is:
Electric automobile built-in tangential and radial permanent magnet steel combination type magnetic pole drive motor are made up of drive end bearing bracket, rear end cap, casing, rotor, stator, it is characterised in that: drive motor rotor is built-in tangential and radial magnetic field p-m rotor；
nullBuilt-in tangential and radial magnetic field p-m rotor are by axle、Rectangle permanent-magnet steel、Tile permanent-magnet steel、Rotor core、Fan annular forms every magnetic air gap，Rotor core is evenly equipped with even number and runs through the radial direction rectangular channel of rotor core thickness，Radially do not connect between outer end and the cylindrical of rotor core of rectangular channel，The inner arc surface arc-shaped slot towards rotor core cylindrical of rotor core thickness it is provided with through in the middle of the outer end of adjacent two radial direction rectangular channels，Arc-shaped slot does not connect with radially rectangular channel，All do not connect between two ends and the cylindrical of rotor core of arc-shaped slot，The fan annular of rotor core thickness it is provided with through every magnetic air gap in the inner of each radial direction rectangular channel，Adjacent fan annular does not connect every magnetic air gap，Rectangle permanent-magnet steel is extremely relative with N according to the N pole of adjacent two panels rectangle permanent-magnet steel、The S pole mode extremely relative with S is sequentially arranged at radially in rectangular channel，Again tile permanent-magnet steel is sequentially arranged in arc-shaped slot by the mode that the polarity of tile permanent-magnet steel inner arc surface is identical with the polarity that adjacent two panels rectangle permanent-magnet steel is formed，Rotor core is fitted on axle.
Operation principle: when permanent magnet drive motor passes into by three-phase inverter after the three-phase alternating current of pulsewidth modulation, drive motor stator produces a space rotating magnetic field, it is magnetic field interaction produced by with rotor permanent magnet steel, rotor produces the rotating torques consistent with stator winding rotating excitation field direction, make drive motor p-m rotor rotate, and then drive electric automobile to run.
The present invention is compared with prior art, permanent-magnet steel is embedded in radial direction rectangular channel and the arc-shaped slot of rotor core respectively, the magnetic field of each magnetic pole of drive motor rotor is provided jointly by three permanent-magnet steels, magnetic field intensity is big, power density is high, and few without electricity Exciting Windings for Transverse Differential Protection, power consumption, it does not have carbon brush and mechanical commutator, failure rate is low, there is the features such as high efficiency, high power density, compact conformation, reliable operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the rotor profiles figure of embodiment illustrated in fig. 1.
In figure: 1, axle 2, drive end bearing bracket 3, rectangle permanent-magnet steel 4, tile permanent-magnet steel 5, rotor core 6, casing 7, stator 8, fan annular every magnetic air gap 9, rear end cap.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described:
Electric automobile built-in tangential and radial permanent magnet steel combination type magnetic pole drive motor are made up of drive end bearing bracket 2, rear end cap 9, casing 6, rotor, stator 7, it is characterised in that: drive motor rotor is built-in tangential and radial magnetic field p-m rotor；
nullBuilt-in tangential and radial magnetic field p-m rotor are by axle 1、Rectangle permanent-magnet steel 3、Tile permanent-magnet steel 4、Rotor core 5、Fan annular forms every magnetic air gap 8，Rotor core 5 is evenly equipped with even number and runs through the radial direction rectangular channel of rotor core 5 thickness，Radially do not connect between outer end and the cylindrical of rotor core 5 of rectangular channel，The inner arc surface arc-shaped slot towards rotor core 5 cylindrical of rotor core 5 thickness it is provided with through in the middle of the outer end of adjacent two radial direction rectangular channels，Arc-shaped slot does not connect with radially rectangular channel，All do not connect between the two ends of arc-shaped slot and the cylindrical of rotor core 5，The fan annular of rotor core 5 thickness it is provided with through every magnetic air gap 8 in the inner of each radial direction rectangular channel，Adjacent fan annular does not connect every magnetic air gap 8，Rectangle permanent-magnet steel 3 is extremely relative with N according to the N pole of adjacent two panels rectangle permanent-magnet steel 3、The S pole mode extremely relative with S is sequentially arranged at radially in rectangular channel，Again tile permanent-magnet steel 4 is sequentially arranged in arc-shaped slot by the mode that the polarity of tile permanent-magnet steel 4 inner arc surface is identical with the polarity that adjacent two panels rectangle permanent-magnet steel 3 is formed，Rotor core 5 is fitted on axle 1.
Claims (1)
1. an electric automobile built-in tangential and radial permanent magnet steel combination type magnetic pole drive motor, it is made up of drive end bearing bracket (2), rear end cap (9), casing (6), rotor, stator (7), it is characterised in that: drive motor rotor is built-in tangential and radial magnetic field p-m rotor；
nullBuilt-in tangential and radial magnetic field p-m rotor are by axle (1)、Rectangle permanent-magnet steel (3)、Tile permanent-magnet steel (4)、Rotor core (5)、Fan annular forms every magnetic air gap (8)，Rotor core (5) is evenly equipped with even number and runs through the radial direction rectangular channel of rotor core (5) thickness，Radially do not connect between outer end and the cylindrical of rotor core (5) of rectangular channel，The inner arc surface arc-shaped slot towards rotor core (5) cylindrical of rotor core (5) thickness it is provided with through in the middle of the outer end of adjacent two radial direction rectangular channels，Arc-shaped slot does not connect with radially rectangular channel，All do not connect between the two ends of arc-shaped slot and the cylindrical of rotor core (5)，The fan annular of rotor core (5) thickness it is provided with through every magnetic air gap (8) in the inner of each radial direction rectangular channel，Adjacent fan annular does not connect every magnetic air gap (8)，Rectangle permanent-magnet steel (3) is extremely relative with N according to the N pole of adjacent two panels rectangle permanent-magnet steel (3)、The S pole mode extremely relative with S is sequentially arranged at radially in rectangular channel，Again tile permanent-magnet steel (4) is sequentially arranged in arc-shaped slot by the mode that the polarity of tile permanent-magnet steel (4) inner arc surface is identical with the polarity that adjacent two panels rectangle permanent-magnet steel (3) is formed，Rotor core (5) is fitted on axle (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610306658.4A CN105790476A (en) | 2016-05-11 | 2016-05-11 | Built-in tangential and radial permanent magnet steel combined-type magnetic pole drive motor for electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610306658.4A CN105790476A (en) | 2016-05-11 | 2016-05-11 | Built-in tangential and radial permanent magnet steel combined-type magnetic pole drive motor for electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105790476A true CN105790476A (en) | 2016-07-20 |
Family
ID=56402026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610306658.4A Pending CN105790476A (en) | 2016-05-11 | 2016-05-11 | Built-in tangential and radial permanent magnet steel combined-type magnetic pole drive motor for electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105790476A (en) |
Cited By (2)
| 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 |
| CN109995198A (en) * | 2019-04-23 | 2019-07-09 | 山东理工大学 | Single biradial is spaced apart magnetic pole type driving motor method for production of rotor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009112181A (en) * | 2007-11-01 | 2009-05-21 | Nissan Motor Co Ltd | Rotator of permanent magnet type motor |
| CN202488240U (en) * | 2012-01-09 | 2012-10-10 | 美的威灵电机技术（上海）有限公司 | Tangential rotor of rotary motor |
| CN202798411U (en) * | 2012-09-05 | 2013-03-13 | 四川阿克拉斯电动车有限公司 | Rotor structure of tangential magnetic brushless direct current (DC) motor |
| CN103762766A (en) * | 2014-02-18 | 2014-04-30 | 山东理工大学 | Permanent-magnet hybrid magnetic circuit drive motor of electric vehicle |
| CN103762765A (en) * | 2014-02-18 | 2014-04-30 | 山东理工大学 | Tangential and radial resultant magnetic field embedded permanent magnet rotor driving motor |
-
2016
- 2016-05-11 CN CN201610306658.4A patent/CN105790476A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009112181A (en) * | 2007-11-01 | 2009-05-21 | Nissan Motor Co Ltd | Rotator of permanent magnet type motor |
| CN202488240U (en) * | 2012-01-09 | 2012-10-10 | 美的威灵电机技术（上海）有限公司 | Tangential rotor of rotary motor |
| CN202798411U (en) * | 2012-09-05 | 2013-03-13 | 四川阿克拉斯电动车有限公司 | Rotor structure of tangential magnetic brushless direct current (DC) motor |
| CN103762766A (en) * | 2014-02-18 | 2014-04-30 | 山东理工大学 | Permanent-magnet hybrid magnetic circuit drive motor of electric vehicle |
| CN103762765A (en) * | 2014-02-18 | 2014-04-30 | 山东理工大学 | Tangential and radial resultant magnetic field embedded permanent magnet rotor driving motor |
Cited By (2)
| 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 |
| CN109995198A (en) * | 2019-04-23 | 2019-07-09 | 山东理工大学 | Single biradial is spaced apart magnetic pole type driving motor method for production of rotor |
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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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160720 |