CN105871151A - Salient pole electromagnetic and permanent magnet invisible magnetic pole hybrid excitation drive motor - Google Patents
Salient pole electromagnetic and permanent magnet invisible magnetic pole hybrid excitation drive motor Download PDFInfo
- Publication number
- CN105871151A CN105871151A CN201610306630.0A CN201610306630A CN105871151A CN 105871151 A CN105871151 A CN 105871151A CN 201610306630 A CN201610306630 A CN 201610306630A CN 105871151 A CN105871151 A CN 105871151A
- Authority
- CN
- China
- Prior art keywords
- magnet steel
- pole
- permanent
- rotor core
- rotor
- 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]
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention provides a salient pole electromagnetic and permanent magnet invisible magnetic pole hybrid excitation drive motor and belongs to the technical field of electromobile motor electrical appliances. The motor is composed of a front end cover, a rear end cover, a motor shell, a rotator and a stator, rectangular permanent magnet steel is embedded into a radial rectangular groove, tile permanent magnet steel is embedded into a circular arc groove, the situation that permanent magnet steel generates irreversible demagnetization under the action of an armature reaction of an impact current can be effectively prevented, it is guaranteed that permanent magnet steel is free of loss of excitation, a magnetic field in an air gap of the drive motor is jointly provided by the permanent magnet steel and an electric excitation winding, the generated magnetic field directly faces an air gap, and less leakage flux is generated.
Description
Technical field
The present invention provides a kind of salient pole electromagnetism to drive motor with permanent magnetic invisible magnetic pole composite excitation, belongs to motor in electric automobile
Technical field of electric appliances.
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 the magnetic field of generation is directly facing air gap, and the salient pole electromagnetism that leakage field is few mixes with permanent magnetic invisible magnetic pole encourages
Magnetic driving motor, its technology contents is:
Salient pole electromagnetism and permanent magnetic invisible magnetic pole composite excitation drive motor by drive end bearing bracket, rear end cap, casing, rotor with hybrid excitation,
Stator forms, it is characterised in that: rotor with hybrid excitation is by with the salient pole electrical excitation rotor of carbon brush slip-ring structure and permanent magnet invisible
Pole wheel forms；
Permanent magnetic invisible magnetic pole rotor is made up of every magnetic air gap axle, rectangle permanent-magnet steel, tile permanent-magnet steel, rotor core, peariform slot, turns
It is evenly equipped with even number on sub-iron core and runs through the radial direction rectangular channel of rotor core thickness, the radially outer end of rectangular channel and rotor core
Do not connect between cylindrical, be provided with the peariform slot running through rotor core thickness every magnetic air gap, pears in the inner of each radial direction rectangular channel
Shape groove connects with the inner of radially rectangular channel every the outer end of magnetic air gap, and adjacent peariform slot does not connects every magnetic air gap, every two
Radially rectangular channel is provided with the inner arc surface the running through rotor core thickness arc-shaped slot towards rotor core cylindrical and arc-shaped slot
In the centre of adjacent two radially rectangular channel outer ends, arc-shaped slot does not connects with radially rectangular channel, the two ends of arc-shaped slot and
Do not connect between the cylindrical of rotor core；
Two of the arc-shaped slot both sides that identical two panels rectangle permanent-magnet steel is respectively placed on rotor core radially square
In shape groove and the relative side polarity of two panels rectangle permanent-magnet steel is N pole, it is then N by tile permanent-magnet steel by inner arc surface polarity
The mode of pole is placed in arc-shaped slot, adjacent S pole and S extremely relative to the S pole of two panels rectangle permanent-magnet steel and tile permanent-magnet steel
S the most all by rotor core guide to S pole and S extremely relative to two panels rectangle permanent-magnet steel mid portion rotor core on, formed
The S pole of hidden magnetic pole, 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, the magnetic field of generation directly facing
Air gap, leakage field is few.
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, pyriform are every magnetism
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:
Salient pole electromagnetism and permanent magnetic invisible magnetic pole composite excitation drive motor to be turned by drive end bearing bracket 9, rear end cap 1, casing 3, composite excitation
Son, stator 4 forms, it is characterised in that: rotor with hybrid excitation is by with the salient pole electrical excitation rotor of carbon brush slip-ring structure and permanent magnetism
Hidden magnetic pole rotor forms；
Permanent magnetic invisible magnetic pole rotor by axle 2, rectangle permanent-magnet steel 8, tile permanent-magnet steel 5, rotor core 6, peariform slot every magnetic air gap 7 groups
Become, rotor core 6 be evenly equipped with even number and run through the radial direction rectangular channel of rotor core 6 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 inner of each radial direction rectangular channel the peariform slot running through rotor core 5 thickness every
Magnetic air gap 7, peariform slot connects with the inner of radially rectangular channel every the outer end of magnetic air gap 7, and adjacent peariform slot does not connects every magnetic air gap 7
Logical, it is provided with the inner arc surface running through rotor core 6 thickness towards the circular arc of rotor core 6 cylindrical every two radial direction rectangular channels
Groove and arc-shaped slot are in the centre of two adjacent radial direction rectangular channel outer ends, and arc-shaped slot does not connects with radially rectangular channel, circular arc
Do not connect between the two ends of shape groove and the cylindrical of rotor core 6；
By two radial directions of the arc-shaped slot both sides that identical two panels rectangle permanent-magnet steel 8 is respectively placed on rotor core 6
The side polarity that rectangular channel is interior and two panels rectangle permanent-magnet steel 8 is relative is N pole, then tile permanent-magnet steel 5 is pressed inner arc surface pole
Property is that the mode of N pole is placed in arc-shaped slot, adjacent S pole and S extremely relative to the S pole of two panels rectangle permanent-magnet steel 8 and tile
The S of permanent-magnet steel 5 the most all by rotor core 6 guide to S pole and S extremely relative to the rotor ferrum of two panels rectangle permanent-magnet steel 8 mid portion
On core 6, forming the S pole of hidden magnetic pole, rotor core 6 is fitted on axle 2.
Claims (1)
1. salient pole electromagnetism drives a motor with permanent magnetic invisible magnetic pole composite excitation, 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 salient pole with carbon brush slip-ring structure
Electrical excitation rotor and permanent magnetic invisible magnetic pole rotor composition；
Permanent magnetic invisible magnetic pole rotor by axle (2), rectangle permanent-magnet steel (8), tile permanent-magnet steel (5), rotor core (6), peariform slot every
Magnetic air 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 square
Do not connect between the outer end of shape groove and the cylindrical of rotor core (5), be provided with in the inner of each radial direction rectangular channel and run through rotor ferrum
The peariform slot of core (5) thickness connects with the inner of radially rectangular channel every the outer end of magnetic air gap (7) every magnetic air gap (7), peariform slot, phase
Adjacent peariform slot does not connects every magnetic air gap (7), is provided with the Inner arc running through rotor core (6) thickness every two radial direction rectangular channels
Facing to the arc-shaped slot of rotor core (6) cylindrical and arc-shaped slot at the centre of adjacent two radially rectangular channel outer ends, circle
Arcuate groove does not connects with radially rectangular channel, does not connects between the two ends of arc-shaped slot and the cylindrical of rotor core (6)；
Identical two panels rectangle permanent-magnet steel (8) is respectively placed at two of the arc-shaped slot both sides on rotor core (6)
The side polarity that radially rectangular channel is interior and two panels rectangle permanent-magnet steel (8) is relative is N pole, then by tile permanent-magnet steel (5) by interior
Arc surface polarity is that the mode of N pole is placed in arc-shaped slot, adjacent S pole and S extremely relative to two panels rectangle permanent-magnet steel (8)
The S of S pole and tile permanent-magnet steel (5) the most all by rotor core (6) guide to S pole and S extremely relative to two panels rectangle permanent-magnet steel (8) in
Between part rotor core (6) on, formed hidden magnetic pole S pole, rotor core (6) is fitted on axle (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610306630.0A CN105871151A (en) | 2016-05-11 | 2016-05-11 | Salient pole electromagnetic and permanent magnet invisible magnetic pole hybrid excitation drive motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610306630.0A CN105871151A (en) | 2016-05-11 | 2016-05-11 | Salient pole electromagnetic and permanent magnet invisible magnetic pole hybrid excitation drive motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105871151A true CN105871151A (en) | 2016-08-17 |
Family
ID=56630668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610306630.0A Pending CN105871151A (en) | 2016-05-11 | 2016-05-11 | Salient pole electromagnetic and permanent magnet invisible magnetic pole hybrid excitation drive motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105871151A (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 |
| 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 |
| WO2020216108A1 (en) * | 2019-04-23 | 2020-10-29 | 山东理工大学 | Electromagnetic and invisible magnetic pole hybrid excitation driving motor |
Citations (5)
| 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 |
| CN1893235A (en) * | 2005-07-08 | 2007-01-10 | 山东理工大学 | Permanent-magnet and electromagnetic hybrid excitation generating apparatus with vacuum pump |
| 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 |
| 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 CN201610306630.0A patent/CN105871151A/en active Pending
Patent Citations (5)
| 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 |
| CN1893235A (en) * | 2005-07-08 | 2007-01-10 | 山东理工大学 | Permanent-magnet and electromagnetic hybrid excitation generating apparatus with vacuum pump |
| 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 |
| CN204168022U (en) * | 2014-11-10 | 2015-02-18 | 山东理工大学 | Brushless electromagnetism and permanent magnetism mixing excitation generator |
Cited By (4)
| 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 |
| WO2020216108A1 (en) * | 2019-04-23 | 2020-10-29 | 山东理工大学 | Electromagnetic and invisible magnetic pole hybrid excitation driving motor |
| US11611252B2 (en) | 2019-04-23 | 2023-03-21 | Shandong University Of Technology | Driving motor with hybrid excitation of electromagnetism and invisible magnetic pole |
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Legal Events
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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 |