CN103887939A - Permanent magnet and electromagnetism mixed excitation hub driving motor rotor producing method - Google Patents
Permanent magnet and electromagnetism mixed excitation hub driving motor rotor producing method Download PDFInfo
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- CN103887939A CN103887939A CN201410142991.7A CN201410142991A CN103887939A CN 103887939 A CN103887939 A CN 103887939A CN 201410142991 A CN201410142991 A CN 201410142991A CN 103887939 A CN103887939 A CN 103887939A
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- rotor core
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- magnet steel
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Abstract
The invention provides a permanent magnet and electromagnetism mixed excitation hub driving motor rotor producing method and belongs to the technical field of vehicle motor electric appliances. Permanent magnet steel with N poles and S poles arrayed at intervals is fixed on a rotor core. An electric excitation winding coil is wound on the same rotor core. Wire winding is carried out in sequence in the mode that polarity generated on the inner side of the rotor core after direct currents are connected is identical to the polarity of the inner side of the permanent magnet steel fixed on the rotor core, the magnetic field of each rotor pole is provided by the permanent magnet steel and an electric excitation winding, magnetic field intensity is high, and a hub driving motor is high in power density.
Description
Technical field
The invention provides a kind of permanent magnetism and electromagnetic hybrid excitation hub driven motor method for production of rotor, belong to electric motor of automobile technical field of electric appliances.
Background technology
The production method of electric automobile hub drive motors rotor is that permanent-magnet steel sticks on hub-type internal side of shell at present, permanent-magnet steel is directly in the face of air gap, electric automobile is met barrier while blocking in overload or driving wheel, stator winding produces larger impulse current, permanent-magnet steel is under the armature reaction effect of impulse current, may produce irreversible demagnetization, once permanent-magnet steel forms irreversible demagnetization, drive motors Efficiency Decreasing, power, moment of torsion declines rapidly, in addition, drive motors air gap internal magnetic field is only improved by permanent-magnet steel, magnetic field intensity is little, power density is low, its serviceability needs further improvement.
Summary of the invention
The object of this invention is to provide one and can overcome above-mentioned defect, permanent-magnet steel is fixed on rotor core by screw by pole shoe, this structure is rotor magnetic bypass structure, can effectively prevent that permanent-magnet steel from producing irreversible demagnetization problem under the armature reaction effect of impulse current, ensure not permanent magnetism and the electromagnetic hybrid excitation hub driven motor method for production of rotor of loss of excitation of permanent-magnet steel, its technology contents is:
Permanent magnetism and electromagnetic hybrid excitation hub driven motor method for production of rotor, it is characterized in that: casting hub formula casing, machined grooves in the intermediate circumference of hub-type internal side of shell, even number rotor core is by the uniform circumferential groove being fixed in the middle of hub-type internal side of shell of the second screw, permanent-magnet steel is fixed on the inner side of rotor core by the first screw by pole shoe, the inner side polarity of two blocks of adjacent permanent-magnet steels is contrary, form the N utmost point, the extremely spaced p-m rotor of S, electricity excitation winding pole coil is wrapped on rotor core, the mode that the polarity producing by the inner side that passes into rotor core after direct current is identical with polarity inside the permanent-magnet steel being fixed on this rotor core winds the line successively, the number of turn on each rotor core should equate, by lathe finish turning rotor inner circle, complete the production of permanent magnetism and electromagnetic hybrid excitation hub driven motor rotor.
The present invention compared with prior art, the extremely spaced permanent-magnet steel of the N utmost point, S is fixed on rotor core, electricity excitation winding pole coil is wrapped on same rotor core, the mode that the polarity producing by the inner side that passes into rotor core after direct current is identical with polarity inside the permanent-magnet steel being fixed on this rotor core winds the line successively, the magnetic field of each rotor pole is provided jointly by permanent-magnet steel and electric excitation winding, magnetic field intensity is large, and hub driven motor power density is high.
Brief description of the drawings
Fig. 1 is production process flow chart of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
Permanent magnetism and electromagnetic hybrid excitation hub driven motor method for production of rotor, it is characterized in that: casting hub formula casing, machined grooves in the intermediate circumference of hub-type internal side of shell, even number rotor core is by the uniform circumferential groove being fixed in the middle of hub-type internal side of shell of the second screw, permanent-magnet steel is fixed on the inner side of rotor core by the first screw by pole shoe, the inner side polarity of two blocks of adjacent permanent-magnet steels is contrary, form the N utmost point, the extremely spaced p-m rotor of S, electricity excitation winding pole coil is wrapped on rotor core, the mode that the polarity producing by the inner side that passes into rotor core after direct current is identical with polarity inside the permanent-magnet steel being fixed on this rotor core winds the line successively, the number of turn on each rotor core should equate, by lathe finish turning rotor inner circle, complete the production of permanent magnetism and electromagnetic hybrid excitation hub driven motor rotor.
Claims (1)
1. a permanent magnetism and electromagnetic hybrid excitation hub driven motor method for production of rotor, it is characterized in that: casting hub formula casing, machined grooves in the intermediate circumference of hub-type internal side of shell, even number rotor core is by the uniform circumferential groove being fixed in the middle of hub-type internal side of shell of the second screw, permanent-magnet steel is fixed on the inner side of rotor core by the first screw by pole shoe, the inner side polarity of two blocks of adjacent permanent-magnet steels is contrary, form the N utmost point, the extremely spaced p-m rotor of S, electricity excitation winding pole coil is wrapped on rotor core, the mode that the polarity producing by the inner side that passes into rotor core after direct current is identical with polarity inside the permanent-magnet steel being fixed on this rotor core winds the line successively, the number of turn on each rotor core should equate, by lathe finish turning rotor inner circle, complete the production of permanent magnetism and electromagnetic hybrid excitation hub driven motor rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410142991.7A CN103887939A (en) | 2014-04-11 | 2014-04-11 | Permanent magnet and electromagnetism mixed excitation hub driving motor rotor producing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410142991.7A CN103887939A (en) | 2014-04-11 | 2014-04-11 | Permanent magnet and electromagnetism mixed excitation hub driving motor rotor producing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103887939A true CN103887939A (en) | 2014-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410142991.7A Pending CN103887939A (en) | 2014-04-11 | 2014-04-11 | Permanent magnet and electromagnetism mixed excitation hub driving motor rotor producing method |
Country Status (1)
| Country | Link |
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| CN (1) | CN103887939A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101176249A (en) * | 2005-05-10 | 2008-05-07 | 株式会社小松制作所 | Generator/motor mounted on engine |
| CN102638147A (en) * | 2012-04-26 | 2012-08-15 | 张学义 | Hybrid excitation generator with permanent and electromagnetic series magnetic fields |
| CN102716780A (en) * | 2012-06-29 | 2012-10-10 | 冯桂宏 | Combined stator/rotor permanent-magnet outer rotor motor directly-driven vertical mill millstone |
| CN103414300A (en) * | 2013-06-17 | 2013-11-27 | 赵明珍 | H-type electrically-controlled magnetic motor |
-
2014
- 2014-04-11 CN CN201410142991.7A patent/CN103887939A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101176249A (en) * | 2005-05-10 | 2008-05-07 | 株式会社小松制作所 | Generator/motor mounted on engine |
| CN102638147A (en) * | 2012-04-26 | 2012-08-15 | 张学义 | Hybrid excitation generator with permanent and electromagnetic series magnetic fields |
| CN102716780A (en) * | 2012-06-29 | 2012-10-10 | 冯桂宏 | Combined stator/rotor permanent-magnet outer rotor motor directly-driven vertical mill millstone |
| CN103414300A (en) * | 2013-06-17 | 2013-11-27 | 赵明珍 | H-type electrically-controlled magnetic motor |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140625 |