CN105915010A - Invisible magnetic pole and brushless electromagnetic mixed excitation driving motor - Google Patents
Invisible magnetic pole and brushless electromagnetic mixed excitation driving motor Download PDFInfo
- Publication number
- CN105915010A CN105915010A CN201610314137.3A CN201610314137A CN105915010A CN 105915010 A CN105915010 A CN 105915010A CN 201610314137 A CN201610314137 A CN 201610314137A CN 105915010 A CN105915010 A CN 105915010A
- Authority
- CN
- China
- Prior art keywords
- rotor core
- rotor
- magnet steel
- pole
- magnetic pole
- 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
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
-
- 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
- H02K1/2746—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 arranged with the same polarity, e.g. consequent pole type
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention provides an invisible magnetic pole and brushless electromagnetic mixed excitation driving motor, belonging to the automobile motor electric appliance technical field, and comprises a front end cover, a rear end cover, a casing, a rotor and a stator; rectangular permanent magnet steels are respectively embedded in a first rectangular notch and a second rectangular notch. The motor can effectively prevent permanent magnet steels from generating irreversible demagnetization under the surge current armature reaction effect, and avoid loss of excitation of the permanent magnet steels; a magnetic field in driving motor air gaps is provided by the permanent magnet steels and electro-magnetic coils; a generated magnetic field directly faces gaps, and generates less leakage flux.
Description
Technical field
The present invention provides a kind of hidden magnetic pole to drive motor with brushless electromagnetic hybrid excitation, belongs to motor in electric automobile electrical equipment
Technical field.
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 hidden magnetic pole that leakage field is few is driven with brushless electromagnetic hybrid excitation
Galvanic electricity machine, its technology contents is:
Hidden magnetic pole and brushless electromagnetic hybrid excitation drive motor by drive end bearing bracket, rear end cap, casing, rotor with hybrid excitation, stator
Composition, it is characterised in that: rotor with hybrid excitation is made up of electrical excitation rotor and the hidden magnetic pole rotor of non-carbonate slip ring structure；
Hidden magnetic pole rotor by axle, the first rectangle permanent-magnet steel, the second rectangle permanent-magnet steel, rotor core, form every magnetic air gap, rotor
Multiple rotor core thickness and inverted "eight" shape groove formed by two the first rectangular channels of running through it is evenly equipped with on iron core, two first
It is provided with in the middle of inverted "eight" shape groove the inner that rectangular channel is formed and runs through rotor core thickness and formed by two the second rectangular channels
Positive "eight" shape groove, the outer end of two the second rectangular channels forming positive "eight" shape does not connects, the outer end of the first rectangular channel with turn
The cylindrical of sub-iron core does not connects, be jointly provided with in the inner of the inner of each first rectangular channel and adjacent second rectangular channel run through turn
Sub-iron core thickness every magnetic air gap, all connect with the inner of the first rectangular channel and the inner of the second rectangular channel every the outer end of magnetic air gap
Logical, adjacent does not connects every magnetic air gap, and identical two panels the first rectangle permanent-magnet steel is respectively placed at rotor core by two
In the inverted "eight" shape groove that individual first rectangular channel is formed and the inner side of inverted "eight" shape that formed of two panels the first rectangle permanent-magnet steel is equal
For N pole, identical two panels the second rectangle permanent-magnet steel is respectively placed at what rotor core was formed by two the second rectangular channels
In positive "eight" shape groove and the outside of positive "eight" shape that formed of two panels the second rectangle permanent-magnet steel is N pole, the first rectangle permanent magnetism
The S pole of steel and the S of the second rectangle permanent-magnet steel the most all guide to adjacent two inverted "eight" shape groove mid portion by rotor core
Rotor core on, form the S pole of hidden magnetic pole, rotor core is fitted on axle, forms the most spaced stealthy magnetic of N pole, S
Pole rotor.
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 the first rectangular channel and second on rotor core to the present invention respectively
In rectangular channel, 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 the 5, first rectangle permanent-magnet steel 6, rotor core 7, every magnetism
Gap the 8, second 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:
Hidden magnetic pole and brushless electromagnetic hybrid excitation drive motor by drive end bearing bracket 9, rear end cap 1, casing 3, rotor with hybrid excitation, determine
Son 4 composition, it is characterised in that: rotor with hybrid excitation is by the electrical excitation rotor of non-carbonate slip ring structure and hidden magnetic pole rotor set
Become；
Hidden magnetic pole rotor by axle the 2, first rectangle permanent-magnet steel the 5, second rectangle permanent-magnet steel 8, rotor core 6, every magnetic air gap 7 groups
Become, rotor core 6 is evenly equipped with and multiple runs through rotor core 6 thickness and the inverted "eight" shape formed by two the first rectangular channels
Groove, is provided with in the middle of inverted "eight" shape groove the inner of two the first rectangular channel formation and runs through rotor core 6 thickness and by two second
The positive "eight" shape groove that rectangular channel is formed, the outer end of two the second rectangular channels forming positive "eight" shape does not connects, the first rectangle
The outer end of groove does not connects with the cylindrical of rotor core 6, in the inner of each first rectangular channel and the inner of adjacent second rectangular channel
Jointly be provided with run through rotor core 6 thickness every magnetic air gap 7, every the inner and second of the outer end of magnetic air gap 7 Yu the first rectangular channel
The inner of rectangular channel all connects, and adjacent does not connects every magnetic air gap 7, by identical two panels the first rectangle permanent-magnet steel 5 respectively
In being placed in the inverted "eight" shape groove that rotor core 6 is formed by two the first rectangular channels and two panels the first rectangle permanent-magnet steel 5 is formed
The inner side of inverted "eight" shape be N pole, identical two panels the second rectangle permanent-magnet steel 8 is respectively placed at rotor core 6
In the positive "eight" shape groove formed by two the second rectangular channels and outside the positive "eight" shape that formed of two panels the second rectangle permanent-magnet steel 8
Side is N pole, and the S pole of the first rectangle permanent-magnet steel 5 and the S of the second rectangle permanent-magnet steel 8 the most all guide to adjacent by rotor core 6
On the rotor core 6 of two inverted "eight" shape groove mid portions, forming the S pole of hidden magnetic pole, rotor core 6 is fitted on axle 2,
Form N pole, S the most spaced hidden magnetic pole rotor.
Claims (1)
1. hidden magnetic pole drives a motor with brushless electromagnetic hybrid excitation, by drive end bearing bracket (9), rear end cap (1), casing (3), mixes
Close excitation rotor, stator (4) composition, it is characterised in that: rotor with hybrid excitation by the electrical excitation rotor of non-carbonate slip ring structure and
Hidden magnetic pole rotor forms；
Hidden magnetic pole rotor by axle (2), the first rectangle permanent-magnet steel (5), the second rectangle permanent-magnet steel (8), rotor core (6), every magnetic
Air gap (7) forms, and rotor core (6) is evenly equipped with and multiple run through rotor core (6) thickness and formed by two the first rectangular channels
Inverted "eight" shape groove, be provided with in the middle of inverted "eight" shape groove the inner that two the first rectangular channels are formed that to run through rotor core (6) thick
Degree and the positive "eight" shape groove formed by two the second rectangular channels, form the outer end of two the second rectangular channels of positive "eight" shape not
Connection, the outer end of the first rectangular channel does not connects with the cylindrical of rotor core (6), in the inner of each first rectangular channel and adjacent the
The inner of two rectangular channels be jointly provided with run through rotor core (6) thickness every magnetic air gap (7), every the outer end of magnetic air gap (7) and the
The inner of one rectangular channel all connects with the inner of the second rectangular channel, and adjacent does not connects every magnetic air gap (7), by identical two
Sheet 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, by identical two panels the second rectangle
In permanent-magnet steel (8) is respectively placed at the positive "eight" shape groove that rotor core (6) is formed by two the second rectangular channels and two panels second
The outside of the positive "eight" shape that rectangle permanent-magnet steel (8) is formed is N pole, and the S pole of the first rectangle permanent-magnet steel (5) and the second rectangle are forever
The S of magnet steel (8) the most all guides to the rotor core (6) of adjacent two inverted "eight" shape groove mid portion by rotor core (6)
On, forming the S pole of hidden magnetic pole, rotor core (6) is fitted on axle (2), and formation N pole, the most spaced hidden magnetic pole of S turn
Son.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610314137.3A CN105915010A (en) | 2016-05-13 | 2016-05-13 | Invisible magnetic pole and brushless electromagnetic mixed excitation driving motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610314137.3A CN105915010A (en) | 2016-05-13 | 2016-05-13 | Invisible magnetic pole and brushless electromagnetic mixed excitation driving motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105915010A true CN105915010A (en) | 2016-08-31 |
Family
ID=56748882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610314137.3A Pending CN105915010A (en) | 2016-05-13 | 2016-05-13 | Invisible magnetic pole and brushless electromagnetic mixed excitation driving motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105915010A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109995164A (en) * | 2019-04-23 | 2019-07-09 | 山东理工大学 | Asymmetric magnetic pole type permanent magnetism for electric vehicle and pawl pole electrical excitation driving motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105811619A (en) * | 2016-05-11 | 2016-07-27 | 山东理工大学 | Electromagnetic hybrid type excitation driving motor with permanent magnet invisible magnetic poles and salient poles |
| CN105914992A (en) * | 2016-05-11 | 2016-08-31 | 山东理工大学 | Embedded double radial permanent magnetic and electromagnetic mixing excitation driving motor |
| CN105914986A (en) * | 2016-05-11 | 2016-08-31 | 山东理工大学 | Brushless electromagnetic and composite permanent magnet magnetic pole mixed excitation driving motor |
| CN105958769A (en) * | 2016-05-11 | 2016-09-21 | 山东理工大学 | Invisible composite magnetic pole and brushless electromagnetic drive motor |
-
2016
- 2016-05-13 CN CN201610314137.3A patent/CN105915010A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105811619A (en) * | 2016-05-11 | 2016-07-27 | 山东理工大学 | Electromagnetic hybrid type excitation driving motor with permanent magnet invisible magnetic poles and salient poles |
| CN105914992A (en) * | 2016-05-11 | 2016-08-31 | 山东理工大学 | Embedded double radial permanent magnetic and electromagnetic mixing excitation driving motor |
| CN105914986A (en) * | 2016-05-11 | 2016-08-31 | 山东理工大学 | Brushless electromagnetic and composite permanent magnet magnetic pole mixed excitation driving motor |
| CN105958769A (en) * | 2016-05-11 | 2016-09-21 | 山东理工大学 | Invisible composite magnetic pole and brushless electromagnetic drive motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109995164A (en) * | 2019-04-23 | 2019-07-09 | 山东理工大学 | Asymmetric magnetic pole type permanent magnetism for electric vehicle and pawl pole electrical excitation driving motor |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20160831 |