CN105811619A - Electromagnetic hybrid type excitation driving motor with permanent magnet invisible magnetic poles and salient poles - Google Patents
Electromagnetic hybrid type excitation driving motor with permanent magnet invisible magnetic poles and salient poles Download PDFInfo
- Publication number
- CN105811619A CN105811619A CN201610306581.0A CN201610306581A CN105811619A CN 105811619 A CN105811619 A CN 105811619A CN 201610306581 A CN201610306581 A CN 201610306581A CN 105811619 A CN105811619 A CN 105811619A
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- CN
- China
- Prior art keywords
- rotor core
- pole
- rotor
- magnet steel
- magnetic
- 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
- 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
- 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
- H02K16/00—Machines with more than one rotor or stator
- H02K16/02—Machines with one stator and two or more rotors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention provides an electromagnetic hybrid type excitation driving motor with permanent magnet invisible magnetic poles and salient poles, and belongs to the technical field of motors and electric appliances of electric automobiles. The electromagnetic 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 first rectangular grooves and second rectangular grooves embedded in the rotor iron core respectively. 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; and the magnetic field in the air gap of the driving motor is jointly supplied by the permanent magnet steels and the electric exciting winding; and meanwhile, 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 permanent magnetic invisible magnetic pole and salient pole electromagnetic hybrid 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 permanent magnetic invisible magnetic pole of leakage field and salient pole electromagnetic hybrid excitation drive motor, its technology contents is:
Permanent magnetic invisible magnetic pole and salient pole electromagnetic hybrid 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 salient pole electricity excitation rotor and the permanent magnetic invisible magnetic pole rotor with carbon brush slip-ring structure；
nullPermanent magnetic invisible magnetic pole rotor is by axle、First rectangle permanent-magnet steel、Second rectangle permanent-magnet steel、Rotor core、Form every magnetic air gap，Rotor core is evenly equipped with and multiple runs through rotor core thickness and the inverted "eight" shape groove formed by two the first rectangular channels，It is provided with through rotor core thickness and the positive "eight" shape groove formed by two the second rectangular channels in the middle of inverted "eight" shape groove the inner of two the first rectangular channel formation，The outer end of two the second rectangular channels forming positive "eight" shape does not connect，The outer end of the first rectangular channel does not connect with the cylindrical of rotor core，Jointly be provided with through in the inner of the inner of each first rectangular channel and adjacent second rectangular channel rotor core thickness every magnetic air gap，Every the outer end of magnetic air gap, the inner of the inner with the first rectangular channel and the second rectangular channel all connects，Adjacent does not connect every magnetic air gap，Identical two panels the first rectangle permanent-magnet steel is respectively placed in the inverted "eight" shape groove that rotor core is formed by two the first rectangular channels and the inner side of inverted "eight" shape that two panels the first rectangle permanent-magnet steel is formed is N pole，Identical two panels the second rectangle permanent-magnet steel is respectively placed in the positive "eight" shape groove that rotor core is formed by two the second rectangular channels and the outside of positive "eight" shape that two panels the second rectangle permanent-magnet steel is formed is N pole，The S pole of the first rectangle permanent-magnet steel and the S pole of the second rectangle permanent-magnet steel are guided on the rotor core of adjacent two inverted "eight" shape groove mid portion each through rotor core，Form 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 the first rectangular channel on rotor core and in the second rectangular channel respectively, 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, the magnetic field produced 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 the 5, first rectangle permanent-magnet steel 6, rotor core 7, every magnetic air gap the 8, second 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:
Permanent magnetic invisible magnetic pole and salient pole electromagnetic hybrid 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 salient pole electricity excitation rotor and the permanent magnetic invisible magnetic pole rotor with carbon brush slip-ring structure；
nullPermanent magnetic invisible magnetic pole rotor is by axle 2、First rectangle permanent-magnet steel 5、Second rectangle permanent-magnet steel 8、Rotor core 6、Form every magnetic air gap 7，Rotor core 6 is evenly equipped with and multiple runs through rotor core 6 thickness and the inverted "eight" shape groove formed by two the first rectangular channels，It is provided with through rotor core 6 thickness and the positive "eight" shape groove formed by two the second rectangular channels in the middle of inverted "eight" shape groove the inner of two the first rectangular channel formation，The outer end of two the second rectangular channels forming positive "eight" shape does not connect，The outer end of the first rectangular channel does not connect with the cylindrical of rotor core 6，Jointly be provided with through in the inner of the inner of each first rectangular channel and adjacent second rectangular channel rotor core 6 thickness every magnetic air gap 7，Every the outer end of magnetic air gap 7, the inner of the inner with the first rectangular channel and the second rectangular channel all connects，Adjacent does not connect every magnetic air gap 7，Identical two panels the first rectangle permanent-magnet steel 5 is respectively placed in the inverted "eight" shape groove that rotor core 6 is formed by two the first rectangular channels and the inner side of inverted "eight" shape that two panels the first rectangle permanent-magnet steel 5 is formed is N pole，Identical two panels the second rectangle permanent-magnet steel 8 is respectively placed in the positive "eight" shape groove that rotor core 6 is formed by two the second rectangular channels and the outside of positive "eight" shape that two panels the second rectangle permanent-magnet steel 8 is formed is N pole，The S pole of the first rectangle permanent-magnet steel 5 and the S pole of the second rectangle permanent-magnet steel 8 are guided on the rotor core 6 of adjacent two inverted "eight" shape groove mid portion each through rotor core 6，Form the S pole of hidden magnetic pole，Rotor core 6 is fitted on axle 2.
Claims (1)
1. a permanent magnetic invisible magnetic pole and salient pole electromagnetic hybrid 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 salient pole electricity excitation rotor and the permanent magnetic invisible magnetic pole rotor with carbon brush slip-ring structure；
nullPermanent magnetic invisible magnetic pole rotor is by axle (2)、First rectangle permanent-magnet steel (5)、Second rectangle permanent-magnet steel (8)、Rotor core (6)、Form every magnetic air gap (7)，Rotor core (6) is evenly equipped with and multiple runs through rotor core (6) thickness and the inverted "eight" shape groove formed by two the first rectangular channels，It is provided with through rotor core (6) thickness and the positive "eight" shape groove formed by two the second rectangular channels in the middle of inverted "eight" shape groove the inner of two the first rectangular channel formation，The outer end of two the second rectangular channels forming positive "eight" shape does not connect，The outer end of the first rectangular channel does not connect with the cylindrical of rotor core (6)，Jointly be provided with through in the inner of the inner of each first rectangular channel and adjacent second rectangular channel rotor core (6) thickness every magnetic air gap (7)，All connect every the inner of the outer end of magnetic air gap (7) with the inner of the first rectangular channel and the second rectangular channel，Adjacent does not connect every magnetic air gap (7)，Identical two panels the first rectangle permanent-magnet steel (5) is respectively placed in the inverted "eight" shape groove that rotor core (6) is formed by two the first rectangular channels and the inner side of inverted "eight" shape that two panels the first rectangle permanent-magnet steel (5) is formed is N pole，Identical two panels the second rectangle permanent-magnet steel (8) is respectively placed in the positive "eight" shape groove that rotor core (6) is formed by two the second rectangular channels and the outside of positive "eight" shape that two panels the second rectangle permanent-magnet steel (8) is formed is N pole，The S pole of the first rectangle permanent-magnet steel (5) and the S pole of the second rectangle permanent-magnet steel (8) are guided on the rotor core (6) of adjacent two inverted "eight" shape groove mid portion 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 |
|---|---|---|---|
| CN201610306581.0A CN105811619A (en) | 2016-05-11 | 2016-05-11 | Electromagnetic hybrid type excitation driving motor with permanent magnet invisible magnetic poles and salient poles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610306581.0A CN105811619A (en) | 2016-05-11 | 2016-05-11 | Electromagnetic hybrid type excitation driving motor with permanent magnet invisible magnetic poles and salient poles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105811619A true CN105811619A (en) | 2016-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610306581.0A Pending CN105811619A (en) | 2016-05-11 | 2016-05-11 | Electromagnetic hybrid type excitation driving motor with permanent magnet invisible magnetic poles and salient poles |
Country Status (1)
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|---|---|
| CN (1) | CN105811619A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105915010A (en) * | 2016-05-13 | 2016-08-31 | 山东理工大学 | Invisible magnetic pole and brushless electromagnetic mixed excitation driving motor |
| CN116885869A (en) * | 2023-05-16 | 2023-10-13 | 山东理工大学 | Equidirectional offset type multilayer irregular permanent magnet pole motor |
| CN116885869B (en) * | 2023-05-16 | 2024-09-24 | 山东理工大学 | Equidirectional offset type multilayer irregular permanent magnet pole motor |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5159220A (en) * | 1990-06-25 | 1992-10-27 | General Electric Company | Realizations of folded magnet AC motors |
| US20040007930A1 (en) * | 2002-04-15 | 2004-01-15 | Denso Corporation | Permanent-magnet rotor for an inner rotor type electric rotary machine and magnet-saving type rotor for a synchronous motor |
| CN2829205Y (en) * | 2005-09-21 | 2006-10-18 | 山东理工大学 | Tangential permament magnet and electromagnetic mixed excitation generator |
| CN201122886Y (en) * | 2007-11-28 | 2008-09-24 | 刘侃 | Permanent magnet type self-starting DC motor rotor improvement structure |
| CN102386702A (en) * | 2011-12-19 | 2012-03-21 | 南车株洲电机有限公司 | Permanent magnetic synchronous motor and W-shaped rotor structure thereof |
| CN102664502A (en) * | 2012-04-21 | 2012-09-12 | 山东理工大学 | Mixed permanent magnet and electromagnetism compound excitation generator |
| CN103427521A (en) * | 2012-05-25 | 2013-12-04 | 株式会社捷太格特 | Rotor and motor including rotor |
| CN103872821A (en) * | 2012-12-10 | 2014-06-18 | 株式会社电装 | Rotating electric machine |
| CN104638863A (en) * | 2015-01-23 | 2015-05-20 | 浙江迈雷科技有限公司 | Permanent-magnet synchronous motor |
-
2016
- 2016-05-11 CN CN201610306581.0A patent/CN105811619A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5159220A (en) * | 1990-06-25 | 1992-10-27 | General Electric Company | Realizations of folded magnet AC motors |
| US20040007930A1 (en) * | 2002-04-15 | 2004-01-15 | Denso Corporation | Permanent-magnet rotor for an inner rotor type electric rotary machine and magnet-saving type rotor for a synchronous motor |
| CN2829205Y (en) * | 2005-09-21 | 2006-10-18 | 山东理工大学 | Tangential permament magnet and electromagnetic mixed excitation generator |
| CN201122886Y (en) * | 2007-11-28 | 2008-09-24 | 刘侃 | Permanent magnet type self-starting DC motor rotor improvement structure |
| CN102386702A (en) * | 2011-12-19 | 2012-03-21 | 南车株洲电机有限公司 | Permanent magnetic synchronous motor and W-shaped rotor structure thereof |
| CN102664502A (en) * | 2012-04-21 | 2012-09-12 | 山东理工大学 | Mixed permanent magnet and electromagnetism compound excitation generator |
| CN103427521A (en) * | 2012-05-25 | 2013-12-04 | 株式会社捷太格特 | Rotor and motor including rotor |
| CN103872821A (en) * | 2012-12-10 | 2014-06-18 | 株式会社电装 | Rotating electric machine |
| CN104638863A (en) * | 2015-01-23 | 2015-05-20 | 浙江迈雷科技有限公司 | Permanent-magnet synchronous motor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105915010A (en) * | 2016-05-13 | 2016-08-31 | 山东理工大学 | Invisible magnetic pole and brushless electromagnetic mixed excitation driving motor |
| CN116885869A (en) * | 2023-05-16 | 2023-10-13 | 山东理工大学 | Equidirectional offset type multilayer irregular permanent magnet pole motor |
| CN116885869B (en) * | 2023-05-16 | 2024-09-24 | 山东理工大学 | Equidirectional offset type multilayer irregular permanent magnet pole motor |
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Application publication date: 20160727 |