CN105811711A - Claw pole electromagnetic and permanent magnet invisible magnetic pole hybrid type excitation driving motor - Google Patents
Claw pole electromagnetic and permanent magnet invisible magnetic pole hybrid type excitation driving motor Download PDFInfo
- Publication number
- CN105811711A CN105811711A CN201610306621.1A CN201610306621A CN105811711A CN 105811711 A CN105811711 A CN 105811711A CN 201610306621 A CN201610306621 A CN 201610306621A CN 105811711 A CN105811711 A CN 105811711A
- Authority
- CN
- China
- Prior art keywords
- pole
- rotor core
- rotor
- magnet steel
- permanent
- 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
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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]
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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
- H02K21/02—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
Abstract
The invention provides a claw pole electromagnetic and permanent magnet invisible magnetic pole hybrid type excitation driving motor, and belongs to the technical field of motors and electric appliances of electric automobiles. The hybrid type excitation driving motor comprises a front end cover, a back end cover, a machine case, a rotor and a stator, wherein rectangular permanent magnet steels are embedded in corresponding radial rectangular grooves; and tile permanent magnet steels are embedded in corresponding circular-arc-shaped grooves. The irreversible demagnetizing of the permanent magnet steels generated under an armature reaction of the impact current can be effectively prevented so as to ensure that the permanent magnet steels are not demagnetized; the magnetic field in the air gap of the driving motor is jointly supplied by the permanent magnet steels and an electric exciting winding; and in addition, the generated magnetic field directly faces to the air gap, so that the leakage flux is low in amount
Description
Technical field
The present invention provides a kind of pawl pole electromagnetism and permanent magnetic invisible magnetic pole composite excitation drive motor, belongs to motor in electric automobile technical field of electric appliances.
Background technology
nullThe rotor of the permanent magnet drive motor adopted on current electric automobile adopts the outer damascene structures of permanent magnet mostly，Such as prior art，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，Rotating shaft is fixing with rotor core to be connected，The outer surface of rotor core is evenly distributed with even number T-shaped voussoir，Slot is constituted between adjacent T-shaped voussoir，Permanent magnet correspondence is embedded in slot，The permanent magnet of this construction rotor is directly facing air gap，Under the armature-reaction effect of dash current，It is likely to produce irreversible demagnetization，Permanent magnet is once form irreversible demagnetization，Drive motor efficiency reduces，Power、Moment of torsion declines 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, magnetic field in drive motor air gap is provided jointly by permanent-magnet steel and electricity Exciting Windings for Transverse Differential Protection, the magnetic field produced directly facing air gap, the few pawl pole electromagnetism of leakage field and permanent magnetic invisible magnetic pole composite excitation drive motor, its technology contents is:
Pawl pole electromagnetism and permanent magnetic invisible magnetic pole composite excitation drive motor are made up of drive end bearing bracket, rear end cap, casing, rotor with hybrid excitation, stator, it is characterised in that: rotor with hybrid excitation is made up of Lundell electricity excitation rotor and the hidden magnetic pole p-m rotor with carbon brush slip-ring structure；
Hidden magnetic pole p-m rotor is by axle, rectangle permanent-magnet steel, tile permanent-magnet steel, rotor core, peariform slot 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, it is provided with through the peariform slot of rotor core thickness every magnetic air gap in the inner of each radial direction rectangular channel, peariform slot connects with the inner of radially rectangular channel every the outer end of magnetic air gap, adjacent peariform slot does not connect every magnetic air gap, every two radially rectangular channels be provided with through the inner arc surface of the rotor core thickness arc-shaped slot towards rotor core cylindrical and the arc-shaped slot centre adjacent two radially rectangular channel outer ends, arc-shaped slot does not connect with radially rectangular channel, do not connect between two ends and the cylindrical of rotor core of arc-shaped slot；
Two of the arc-shaped slot both sides that identical two panels rectangle permanent-magnet steel is respectively placed on rotor core radially in rectangular channels and the relative side polarity of two panels rectangle permanent-magnet steel be N pole, then tile permanent-magnet steel is placed in arc-shaped slot by the mode that inner arc surface polarity is N pole, the S pole of two panels rectangle permanent-magnet steel and the S pole of tile permanent-magnet steel that adjacent S pole is extremely relative with S are guided on the rotor core of the S pole two panels rectangle permanent-magnet steel mid portion extremely relative with S each through rotor core, forming the S pole of hidden magnetic pole, rotor core is fitted on axle.
Operation principle:When drive motor passes into by three-phase inverter after the three-phase alternating current of pulsewidth modulation, drive motor stator produces space rotating magnetic field, it is magnetic field interaction produced by with rotor, rotor produces the rotating torques consistent with stator winding rotating excitation field direction, make drive motor rotor rotate, and then drive electric automobile to run.
The present invention is compared with prior art, rectangle permanent-magnet steel is embedded in radial direction rectangular channel, tile permanent-magnet steel is embedded in arc-shaped slot, can effectively prevent permanent-magnet steel from producing irreversible demagnetization under the armature-reaction effect of dash current, ensure permanent-magnet steel not loss of excitation, magnetic field in drive motor air gap is provided jointly by permanent-magnet steel and electricity Exciting Windings for Transverse Differential Protection, and the magnetic field of generation is directly facing air gap, and 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 is every magnetic air gap 8, rectangle permanent-magnet steel 9, drive end bearing bracket.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described:
Pawl pole electromagnetism and permanent magnetic invisible magnetic pole composite excitation drive motor are made up of drive end bearing bracket 9, rear end cap 1, casing 3, rotor with hybrid excitation, stator 4, it is characterised in that: rotor with hybrid excitation is made up of Lundell electricity excitation rotor and the hidden magnetic pole p-m rotor with carbon brush slip-ring structure；
nullHidden magnetic pole p-m rotor is by axle 2、Rectangle permanent-magnet steel 8、Tile permanent-magnet steel 5、Rotor core 6、Peariform slot forms every magnetic air gap 7，Rotor core 6 is evenly equipped with even number and runs through the radial direction rectangular channel of rotor core 6 thickness，Radially do not connect between outer end and the cylindrical of rotor core 5 of rectangular channel，The peariform slot of rotor core 5 thickness it is provided with through every magnetic air gap 7 in the inner of each radial direction rectangular channel，Peariform slot connects with the inner of radially rectangular channel every the outer end of magnetic air gap 7，Adjacent peariform slot does not connect every magnetic air gap 7，Every two radially rectangular channels be provided with through the inner arc surface of the rotor core 6 thickness arc-shaped slot towards rotor core 6 cylindrical and the arc-shaped slot centre adjacent two radially rectangular channel outer ends，Arc-shaped slot does not connect with radially rectangular channel，Do not connect between the two ends of arc-shaped slot and the cylindrical of rotor core 6；
Two of the arc-shaped slot both sides that identical two panels rectangle permanent-magnet steel 8 is respectively placed on rotor core 6 radially in rectangular channels and the relative side polarity of two panels rectangle permanent-magnet steel 8 be N pole, then tile permanent-magnet steel 5 is placed in arc-shaped slot by the mode that inner arc surface polarity is N pole, the S pole of two panels rectangle permanent-magnet steel 8 and the S pole of tile permanent-magnet steel 5 that adjacent S pole is extremely relative with S are guided on the rotor core 6 of S pole two panels rectangle permanent-magnet steel 8 mid portion extremely relative with S each through rotor core 6, forming the S pole of hidden magnetic pole, rotor core 6 is fitted on axle 2.
Claims (1)
1. a pawl pole electromagnetism and permanent magnetic invisible magnetic pole composite excitation drive motor, it is made up of drive end bearing bracket (9), rear end cap (1), casing (3), rotor with hybrid excitation, stator (4), it is characterised in that: rotor with hybrid excitation is made up of Lundell electricity excitation rotor and the hidden magnetic pole p-m rotor with carbon brush slip-ring structure；
nullHidden magnetic pole p-m rotor is by axle (2)、Rectangle permanent-magnet steel (8)、Tile permanent-magnet steel (5)、Rotor core (6)、Peariform slot forms every magnetic air gap (7)，Rotor core (6) is evenly equipped with even number and runs through the radial direction rectangular channel of rotor core (6) thickness，Radially do not connect between outer end and the cylindrical of rotor core (5) of rectangular channel，The peariform slot of rotor core (5) thickness it is provided with through every magnetic air gap (7) in the inner of each radial direction rectangular channel，Peariform slot connects with the inner of radially rectangular channel every the outer end of magnetic air gap (7)，Adjacent peariform slot does not connect every magnetic air gap (7)，Every two radially rectangular channels be provided with through the inner arc surface of rotor core (6) the thickness arc-shaped slot towards rotor core (6) cylindrical and the arc-shaped slot centre adjacent two radially rectangular channel outer ends，Arc-shaped slot does not connect with radially rectangular channel，Do not connect between the two ends of arc-shaped slot and the cylindrical of rotor core (6)；
Two of the arc-shaped slot both sides being respectively placed on rotor core (6) by identical two panels rectangle permanent-magnet steel (8) the side polarity that radially rectangular channel is interior and two panels rectangle permanent-magnet steel (8) is relative is N pole, then tile permanent-magnet steel (5) is placed in arc-shaped slot by the mode that inner arc surface polarity is N pole, the S pole of two panels rectangle permanent-magnet steel (8) that adjacent S pole is extremely relative with S and the S pole of tile permanent-magnet steel (5) are guided on the rotor core (6) of S pole two panels rectangle permanent-magnet steel (8) mid portion extremely relative with S each through rotor core (6), form the S pole of hidden magnetic pole, rotor core (6) is fitted on axle (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610306621.1A CN105811711A (en) | 2016-05-11 | 2016-05-11 | Claw pole electromagnetic and permanent magnet invisible magnetic pole hybrid type excitation driving motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610306621.1A CN105811711A (en) | 2016-05-11 | 2016-05-11 | Claw pole electromagnetic and permanent magnet invisible magnetic pole hybrid type excitation driving motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105811711A true CN105811711A (en) | 2016-07-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610306621.1A Pending CN105811711A (en) | 2016-05-11 | 2016-05-11 | Claw pole electromagnetic and permanent magnet invisible magnetic pole hybrid type excitation driving motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105811711A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109888991A (en) * | 2019-04-23 | 2019-06-14 | 山东理工大学 | Electric vehicle invisible permanent magnetism mixing excitation driving motor method for production of rotor |
| CN109951037A (en) * | 2019-04-23 | 2019-06-28 | 山东理工大学 | Electromagnetism and hidden magnetic pole composite excitation driving motor |
| CN110350690A (en) * | 2019-07-25 | 2019-10-18 | 盐城市步高汽配制造有限公司 | A kind of novel motor rotor structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08275419A (en) * | 1995-03-30 | 1996-10-18 | Meidensha Corp | Rotor of permanent magnet type rotary machine |
| 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 |
| CN1949637A (en) * | 2005-10-14 | 2007-04-18 | 山东理工大学 | Composite excitation synchronous 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 |
| DE102012212775A1 (en) * | 2012-07-20 | 2014-01-23 | Robert Bosch Gmbh | Rotor assembly for internal rotor machine of electronically commutated electric motor, has sheet slats arranged in stack arrangement such that recesses project steering regions from stack arrangement and extend case for receiving magnet |
| CN204425070U (en) * | 2015-02-06 | 2015-06-24 | 上海日立电器有限公司 | A kind of permanent-magnet synchronous motor rotor |
-
2016
- 2016-05-11 CN CN201610306621.1A patent/CN105811711A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08275419A (en) * | 1995-03-30 | 1996-10-18 | Meidensha Corp | Rotor of permanent magnet type rotary machine |
| 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 |
| CN1949637A (en) * | 2005-10-14 | 2007-04-18 | 山东理工大学 | Composite excitation synchronous 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 |
| DE102012212775A1 (en) * | 2012-07-20 | 2014-01-23 | Robert Bosch Gmbh | Rotor assembly for internal rotor machine of electronically commutated electric motor, has sheet slats arranged in stack arrangement such that recesses project steering regions from stack arrangement and extend case for receiving magnet |
| CN204425070U (en) * | 2015-02-06 | 2015-06-24 | 上海日立电器有限公司 | A kind of permanent-magnet synchronous motor rotor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109888991A (en) * | 2019-04-23 | 2019-06-14 | 山东理工大学 | Electric vehicle invisible permanent magnetism mixing excitation driving motor method for production of rotor |
| CN109951037A (en) * | 2019-04-23 | 2019-06-28 | 山东理工大学 | Electromagnetism and hidden magnetic pole composite excitation driving motor |
| CN110350690A (en) * | 2019-07-25 | 2019-10-18 | 盐城市步高汽配制造有限公司 | A kind of novel motor rotor structure |
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Application publication date: 20160727 |
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| WD01 | Invention patent application deemed withdrawn after publication |