CN105827040A - Combined type permanent magnet and brushless electromagnetic hybrid excitation driving motor - Google Patents
Combined type permanent magnet and brushless electromagnetic hybrid excitation driving motor Download PDFInfo
- Publication number
- CN105827040A CN105827040A CN201610314123.1A CN201610314123A CN105827040A CN 105827040 A CN105827040 A CN 105827040A CN 201610314123 A CN201610314123 A CN 201610314123A CN 105827040 A CN105827040 A CN 105827040A
- Authority
- CN
- China
- Prior art keywords
- magnet steel
- permanent
- rotor core
- rotor
- permanent magnet
- 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
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention provides a combined type permanent magnet and brushless electromagnetic hybrid excitation driving motor, and belongs to the technical field of electric car motor electric appliances. The combined type permanent magnet and brushless electromagnetic hybrid excitation driving motor is formed by a front end cover, a back end cover, a motor housing, a rotor and a stator, wherein rectangular permanent magnet steel are arranged in radial rectangular grooves and tile permanent magnet steel are arranged in arc grooves, so that generation of irreversible demagnetization of the permanent magnet steel under the armature reaction of the impulse current can be effectively avoided and no magnetic loss of the permanent magnet steel can be guaranteed. The magnetic fields in air gaps of the driving motor are provided by the permanent magnet steel and electrical excitation winding together, so that the magnetic field intensity is high and the output power is high.
Description
Technical field
The present invention provides a kind of combination type permanent-magnet to drive motor with brushless electromagnetic hybrid excitation, belongs to motor in electric automobile technical field of electric appliances.
Background technology
nullThe rotor of the permanent magnet drive motor used on electric automobile at present uses 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，Irreversible demagnetization may be produced，Permanent magnet once forms irreversible demagnetization，Driving electric 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, the magnetic field in motor gas-gap is driven jointly to be provided by permanent-magnet steel and electrical excitation winding, magnetic field intensity is big, and the combination type permanent-magnet that power density is high drives motor with brushless electromagnetic hybrid excitation, and its technology contents is:
Combination type permanent-magnet and brushless electromagnetic hybrid excitation drive motor to be 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 electrical excitation rotor and the combination type permanent-magnet rotor of non-carbonate slip ring structure；
nullCombination type permanent-magnet rotor is by axle、Rectangle permanent-magnet steel、Tile permanent-magnet steel、Rotor core、Fan annular forms every magnetic air gap，It is evenly equipped with even number on rotor core 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 the inner arc surface the running through rotor core thickness arc-shaped slot towards rotor core cylindrical in the middle of the outer end of adjacent two radial direction rectangular channels，Arc-shaped slot does not connects with radially rectangular channel，Do not connect between two ends and the cylindrical of rotor core of arc-shaped slot，It is provided with in the inner of each radial direction rectangular channel and runs through the fan annular of rotor core thickness every magnetic air gap，Adjacent fan annular does not connects every magnetic air gap，Rectangle permanent-magnet steel is the most relative with N according to the N pole of adjacent two panels rectangle permanent-magnet steel、S pole and S extremely relative to mode be sequentially arranged at radially in rectangular channel，Again tile permanent-magnet steel is sequentially arranged in arc-shaped slot by the mode that the polarity of tile permanent-magnet steel inner arc surface is identical with the polarity that adjacent two panels rectangle permanent-magnet steel is formed，Rotor core is fitted on axle.
Operation principle: be passed through by three-phase inverter after the three-phase alternating current of pulsewidth modulation when driving motor, motor stator is driven to produce 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 driving 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, driving the magnetic field in motor gas-gap jointly to be provided by permanent-magnet steel and electrical excitation winding, magnetic field intensity is big, and output is high.
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, fan annular are every magnetic air 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:
Combination type permanent-magnet and brushless electromagnetic hybrid excitation drive motor to be 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 electrical excitation rotor and the combination type permanent-magnet rotor of non-carbonate slip ring structure；
nullCombination type permanent-magnet rotor is by axle 2、Rectangle permanent-magnet steel 8、Tile permanent-magnet steel 5、Rotor core 6、Fan annular forms every magnetic air gap 7，It is evenly equipped with even number on rotor core 6 and runs through the radial direction rectangular channel of rotor core 6 thickness，Radially do not connect between the outer end of rectangular channel and the cylindrical of rotor core 6，It is provided with the inner arc surface running through rotor core 6 thickness towards the arc-shaped slot of rotor core 6 cylindrical in the middle of the outer end of adjacent two radial direction rectangular channels，Arc-shaped slot does not connects with radially rectangular channel，Do not connect between the two ends of arc-shaped slot and the cylindrical of rotor core 6，It is provided with in the inner of each radial direction rectangular channel and runs through the fan annular of rotor core 6 thickness every magnetic air gap 7，Adjacent fan annular does not connects every magnetic air gap 7，Rectangle permanent-magnet steel 8 is the most relative with N according to the N pole of adjacent two panels rectangle permanent-magnet steel 8、S pole and S extremely relative to mode be sequentially arranged at radially in rectangular channel，Again tile permanent-magnet steel 5 is sequentially arranged in arc-shaped slot by the mode that the polarity of tile permanent-magnet steel 5 inner arc surface is identical with the polarity that adjacent two panels rectangle permanent-magnet steel 8 is formed，Rotor core 6 is fitted on axle 2.
Claims (1)
1. a combination type permanent-magnet drives motor with brushless electromagnetic hybrid excitation, 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 electrical excitation rotor and the combination type permanent-magnet rotor of non-carbonate slip ring structure；
nullCombination type permanent-magnet rotor is by axle (2)、Rectangle permanent-magnet steel (8)、Tile permanent-magnet steel (5)、Rotor core (6)、Fan annular forms every magnetic air gap (7)，It is evenly equipped with even number on rotor core (6) and runs through the radial direction rectangular channel of rotor core (6) thickness，Radially do not connect between the outer end of rectangular channel and the cylindrical of rotor core (6)，It is provided with the inner arc surface running through rotor core (6) the thickness arc-shaped slot towards rotor core (6) cylindrical in the middle of the outer end of adjacent two radial direction rectangular channels，Arc-shaped slot does not connects with radially rectangular channel，Do not connect between the two ends of arc-shaped slot and the cylindrical of rotor core (6)，It is provided with in the inner of each radial direction rectangular channel and runs through the fan annular of rotor core (6) thickness every magnetic air gap (7)，Adjacent fan annular does not connects every magnetic air gap (7)，Rectangle permanent-magnet steel (8) is the most relative with N according to the N pole of adjacent two panels rectangle permanent-magnet steel (8)、S pole and S extremely relative to mode be sequentially arranged at radially in rectangular channel，Again tile permanent-magnet steel (5) is sequentially arranged in arc-shaped slot by the mode that the polarity of tile permanent-magnet steel (5) inner arc surface is identical with the polarity that adjacent two panels rectangle permanent-magnet steel (8) is formed，Rotor core (6) is fitted on axle (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610314123.1A CN105827040A (en) | 2016-05-13 | 2016-05-13 | Combined type permanent magnet and brushless electromagnetic hybrid excitation driving motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610314123.1A CN105827040A (en) | 2016-05-13 | 2016-05-13 | Combined type permanent magnet and brushless electromagnetic hybrid excitation driving motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105827040A true CN105827040A (en) | 2016-08-03 |
Family
ID=56529354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610314123.1A Pending CN105827040A (en) | 2016-05-13 | 2016-05-13 | Combined type permanent magnet and brushless electromagnetic hybrid excitation driving motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105827040A (en) |
Citations (3)
| 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 |
| 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 |
| CN204168022U (en) * | 2014-11-10 | 2015-02-18 | 山东理工大学 | Brushless electromagnetism and permanent magnetism mixing excitation generator |
-
2016
- 2016-05-13 CN CN201610314123.1A patent/CN105827040A/en active Pending
Patent Citations (3)
| 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 |
| 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 |
| CN204168022U (en) * | 2014-11-10 | 2015-02-18 | 山东理工大学 | Brushless electromagnetism and permanent magnetism mixing excitation generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160803 |