CN105978279A - Rare-earth permanent magnetic driving motor embedded with tangential and radial synthesis magnetic field - Google Patents
Rare-earth permanent magnetic driving motor embedded with tangential and radial synthesis magnetic field Download PDFInfo
- Publication number
- CN105978279A CN105978279A CN201610311817.XA CN201610311817A CN105978279A CN 105978279 A CN105978279 A CN 105978279A CN 201610311817 A CN201610311817 A CN 201610311817A CN 105978279 A CN105978279 A CN 105978279A
- Authority
- CN
- China
- Prior art keywords
- tangential
- rotor
- magnetic field
- rotor core
- rectangular channel
- 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
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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
- H02K1/27—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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention provides a rare-earth permanent magnetic driving motor embedded with a tangential and radial synthesis magnetic field, and belongs to the technical field of motors and electric appliances of electromobile. The motor is composed of a front end cap, a rear end cap, a casing, a rotor and a stator, and the rotor of the driving motor is an embedded permanent magnetic rotor including the tangential and radial synthesis magnetic field. The intensity of the magnetic field is high, power density is high, a magnetic bypass structure of the rotor can effectively solve the problem that irreversible demagnetization is generated when permanent magnet steel is subjected to the armature reaction effect of impact current, it is ensured that the permanent magnet steel is not demagnetized, an electric excitation winding is not needed, the power consumption is low, neither a carbon brush nor a mechanical commutator is included, the fault rate is low, the structure is compact and work is reliable.
Description
Technical field
The present invention provides a kind of embedded tangential and radial direction resultant magnetic field rare earth permanent magnet driving motor, belongs to motor in electric automobile
Technical field of electric appliances.
Background technology
Current and electric automobile matching used driving motor mostly uses the unidirectional current with carbon brush and mechanical commutator
Machine, although DC motor structure is simple, controllability is high, speed-regulating range width, control circuit are relatively easy, cost is relatively low, but
Owing to the magnetic field of direct-drive motor is produced by electrical excitation winding, power consumption is many, delivery efficiency is low, additionally, due to there is carbon brush
And mechanical commutator, not only limit driving motor overload ability and the raising of speed, and if long-play, Shi Bixu
Often to safeguard and to change carbon brush and diverter, therefore direct current generator energy consumption is big, fault rate is high, and its serviceability awaits into one
Step is improved.
Summary of the invention
It is an object of the invention to provide one and can overcome drawbacks described above, drive the magnetic field of motor to be provided by permanent-magnet steel, it is not necessary to
Electrical excitation winding, power consumption are few, do not have carbon brush and mechanical commutator, failure rate is low embedded tangential dilute with radial direction resultant magnetic field
Soil permanent magnet drive motor, its technology contents is:
Embedded tangential it is made up of drive end bearing bracket, rear end cap, casing, rotor, stator with radially resultant magnetic field rare earth permanent magnet driving motor,
It is characterized in that: driving rotor is tangential magnetic field and the built-in permanent magnet rotor of radial magnetic field resultant magnetic field；
Built-in permanent magnet rotor by axle, the first rectangle permanent-magnet steel, the second rectangle permanent-magnet steel, rotor core, form every magnetic air gap, rotor
It is evenly equipped with even number on iron core and runs through the radial direction rectangular channel of rotor core thickness, outside radially the outer end of rectangular channel is with rotor core
Do not connect between circle, in the middle of the outer end of adjacent two radial direction rectangular channels, be provided with the tangential rectangular channel running through rotor core thickness,
Radially rectangular channel does not connects with tangential rectangular channel, and the minimum dimension of the outside of each tangential rectangular channel to rotor core cylindrical is
1.5mm, the inner edge midpoint of each tangential rectangular channel is the most equal with the line at rotor core center, at each radial direction rectangular channel
The inner be provided with run through rotor core thickness every magnetic air gap, adjacent does not connects every magnetic air gap, by the first rectangle permanent-magnet steel according to
The N pole of adjacent two panels the first rectangle permanent-magnet steel and N extremely relative to, S pole and S extremely relative to mode be sequentially arranged at radially rectangular channel
In, then the polarity of polarity that the second rectangle permanent-magnet steel press the lateral surface first rectangle permanent-magnet steel formation adjacent with two panels is identical
Mode is sequentially arranged in tangential rectangular channel, and rotor core is fitted on axle.
Operation principle: when permanent magnet drive motor is passed through by three-phase inverter after the three-phase alternating current of pulsewidth modulation, drives
Armature winding produces a space rotating magnetic field, and it is magnetic field interaction produced by with rotor permanent magnet steel, and rotor produces
The rotating torques consistent with armature winding rotating excitation field direction, makes driving motor permanent magnetic rotor rotate, and then drives electric automobile
Run.
Compared with prior art, rectangle permanent-magnet steel is embedded in tangential rectangular channel and the radial direction square of rotor core to the present invention respectively
In shape groove, driving rotor magnetic field jointly to be provided by tangential magnetic field and radial magnetic field, magnetic field intensity is big, and power density is high, and
And few without electrical excitation winding, power consumption, there is no carbon brush and mechanical commutator, failure rate is low, there is high efficiency, high power close
The features such as degree, 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 the 3, first rectangle permanent-magnet steel the 4, second rectangle permanent-magnet steel 5, rotor core
6, casing 7, stator 8, every magnetic air gap 9, rear end cap.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings:
Embedded tangential and radial direction resultant magnetic field rare earth permanent magnet drives motor by drive end bearing bracket 2, rear end cap 9, casing 6, rotor, stator 7
Composition, it is characterised in that: driving rotor is tangential magnetic field and the built-in permanent magnet rotor of radial magnetic field resultant magnetic field；
Built-in permanent magnet rotor by axle the 1, first rectangle permanent-magnet steel the 3, second rectangle permanent-magnet steel 4, rotor core 5, every magnetic air gap 8 groups
Become, rotor core 5 be evenly equipped with even number and run through the radial direction rectangular channel of rotor core 5 thickness, radially the outer end of rectangular channel with turn
Do not connect between the cylindrical of sub-iron core 5, be provided with in the middle of the outer end of adjacent two radial direction rectangular channels and run through rotor core 5 thickness
Tangential rectangular channel, radially rectangular channel does not connects with tangential rectangular channel, and the outside of each tangential rectangular channel is to rotor core 5 cylindrical
Minimum dimension be 1.5mm, the inner edge midpoint of each tangential rectangular channel is the most equal with the line at rotor core 5 center, often
The inner of individual radial direction rectangular channel be provided with run through rotor core 5 thickness every magnetic air gap 8, adjacent does not connects every magnetic air gap 8, by
One rectangle permanent-magnet steel 3 according to adjacent two panels the first rectangle permanent-magnet steel 3 N pole and N extremely relative to, S pole and S extremely relative to mode depend on
Secondary it is arranged on radially in rectangular channel, then polarity that the second rectangle permanent-magnet steel 4 is pressed lateral surface first rectangle adjacent with two panels is forever
The mode that the polarity of magnet steel 3 formation is identical is sequentially arranged in tangential rectangular channel, and rotor core 5 is fitted on axle 1.
Claims (1)
1. embedded tangential and radial direction resultant magnetic field rare earth permanent magnet drives a motor, by drive end bearing bracket (2), rear end cap (9), casing
(6), rotor, stator (7) composition, it is characterised in that: driving rotor is the interior of tangential magnetic field and radial magnetic field resultant magnetic field
Embedding p-m rotor；
Built-in permanent magnet rotor by axle (1), the first rectangle permanent-magnet steel (3), the second rectangle permanent-magnet steel (4), rotor core (5), every magnetic
Air gap (8) forms, and rotor core (5) is evenly equipped with even number and runs through the radial direction rectangular channel of rotor core (5) thickness, radially rectangle
Do not connect between the outer end of groove and the cylindrical of rotor core (5), be provided with in the middle of the outer end of adjacent two radial direction rectangular channels and run through
The tangential rectangular channel of rotor core (5) thickness, radially rectangular channel does not connects with tangential rectangular channel, outside each tangential rectangular channel
Limit is 1.5mm to the minimum dimension of rotor core (5) cylindrical, the inner edge midpoint of each tangential rectangular channel and rotor core (5)
The line at center is the most equal, be provided with in the inner of each radial direction rectangular channel run through rotor core (5) thickness every magnetic air gap (8),
Adjacent does not connects every magnetic air gap (8), by the first rectangle permanent-magnet steel (3) according to the N of adjacent two panels the first rectangle permanent-magnet steel (3)
Pole and N extremely relative to, S pole and S extremely relative to mode be sequentially arranged at radially in rectangular channel, then the second rectangle permanent-magnet steel (4) is pressed
The mode that polarity that the first rectangle permanent-magnet steel (3) that the polarity of lateral surface is adjacent with two panels is formed is identical is sequentially arranged at tangential square
In shape groove, rotor core (5) is fitted on axle (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610311817.XA CN105978279A (en) | 2016-05-12 | 2016-05-12 | Rare-earth permanent magnetic driving motor embedded with tangential and radial synthesis magnetic field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610311817.XA CN105978279A (en) | 2016-05-12 | 2016-05-12 | Rare-earth permanent magnetic driving motor embedded with tangential and radial synthesis magnetic field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105978279A true CN105978279A (en) | 2016-09-28 |
Family
ID=56992713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610311817.XA Pending CN105978279A (en) | 2016-05-12 | 2016-05-12 | Rare-earth permanent magnetic driving motor embedded with tangential and radial synthesis magnetic field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105978279A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108599418A (en) * | 2018-05-16 | 2018-09-28 | 华中科技大学 | A kind of rotor core and motor of magnetic circuit tandem type hybrid permanent magnet controllable flux motor |
| 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000333389A (en) * | 1999-05-18 | 2000-11-30 | Fujitsu General Ltd | Permanent magnet 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 |
| 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 |
| 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 |
| CN104734447A (en) * | 2015-04-09 | 2015-06-24 | 北京杰诺瑞特机电科技有限公司 | Hybrid magnetic circuit permanent magnetic synchronous motor and solid rotor structure thereof |
-
2016
- 2016-05-12 CN CN201610311817.XA patent/CN105978279A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000333389A (en) * | 1999-05-18 | 2000-11-30 | Fujitsu General Ltd | Permanent magnet motor |
| 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 |
| 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 |
| 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 |
| CN104734447A (en) * | 2015-04-09 | 2015-06-24 | 北京杰诺瑞特机电科技有限公司 | Hybrid magnetic circuit permanent magnetic synchronous motor and solid rotor structure thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108599418A (en) * | 2018-05-16 | 2018-09-28 | 华中科技大学 | A kind of rotor core and motor of magnetic circuit tandem type hybrid permanent magnet controllable flux motor |
| 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 |
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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: 20160928 |