CN105915009A - Brushless electromagnetic and combined permanent magnet mixed excitation driving motor - Google Patents
Brushless electromagnetic and combined permanent magnet mixed excitation driving motor Download PDFInfo
- Publication number
- CN105915009A CN105915009A CN201610314129.9A CN201610314129A CN105915009A CN 105915009 A CN105915009 A CN 105915009A CN 201610314129 A CN201610314129 A CN 201610314129A CN 105915009 A CN105915009 A CN 105915009A
- Authority
- CN
- China
- Prior art keywords
- rectangular channel
- rotor
- rotor core
- permanent
- magnet steel
- 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
- H02K1/2753—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]
- H02K1/2766—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect
- H02K1/2773—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect consisting of tangentially magnetized radial magnets
Abstract
The invention provides a brushless electromagnetic and combined permanent magnet 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 tangential and radial rectangular notches. 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, and has the characteristics of great magnetic field intensity and high output power.
Description
Technical field
The present invention provides a kind of brushless electromagnetism to drive motor with combination type permanent-magnet composite excitation, belongs to motor in electric automobile electricity
Device 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 magnetic field intensity is big, and the brushless electromagnetism that power density is high drives motor with combination type permanent-magnet composite excitation,
Its technology contents is:
Brushless electromagnetism and combination type permanent-magnet composite excitation drive motor by drive end bearing bracket, rear end cap, casing, rotor with hybrid excitation, determine
Son composition, it is characterised in that: rotor with hybrid excitation is by the electrical excitation rotor of non-carbonate slip ring structure and combination type permanent-magnet rotor set
Become；
Combination type permanent-magnet rotor by axle, the first rectangle permanent-magnet steel, rotor core, the second rectangle permanent-magnet steel, form every magnetic air gap, turns
It is evenly equipped with even number on sub-iron core and runs through the radial direction rectangular channel of rotor core thickness, the radially outer end of rectangular channel and rotor core
Do not connect between cylindrical, in the middle of the outer end of adjacent two radial direction rectangular channels, be provided with the tangential rectangular channel running through rotor core thickness,
Radially rectangular channel does not connects with tangential rectangular channel, connects between outer end and the cylindrical of rotor core of tangential rectangular channel, each
Tangential rectangular channel inner edge midpoint is the most equal with the line at rotor core center, is provided with in the inner of each radial direction rectangular channel and runs through turn
Sub-iron core thickness every magnetic air gap, adjacent does not connects every magnetic air gap, by the first rectangle permanent-magnet steel according to adjacent two panels first
The N pole of rectangle permanent-magnet steel and N extremely relative to, S pole and S extremely relative to mode be sequentially arranged at radially in rectangular channel, then by the second square
The polarity that shape permanent-magnet steel is formed by the first rectangle permanent-magnet steel that the polarity of the second rectangle permanent-magnet steel lateral surface is adjacent with two panels is identical
Mode be sequentially fixed in tangential rectangular channel by screw by pole shoe, rotor core is fitted on axle.
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 separately mounted in tangential rectangular channel and radial direction rectangular channel the present invention, energy
Enough effectively prevent permanent-magnet steel from producing irreversible demagnetization under the armature-reaction effect of dash current, it is ensured that permanent-magnet steel not loss of excitation, drive
Magnetic field in dynamic motor gas-gap is provided jointly by permanent-magnet steel and electrical excitation winding, and 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 the 5, second rectangle permanent-magnet steel 6, rotor core 7,
First rectangle permanent-magnet steel 8, every magnetic air gap 9, drive end bearing bracket.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings:
Brushless electromagnetism and combination type permanent-magnet composite excitation drive motor by drive end bearing bracket 9, rear end cap 1, casing 3, rotor with hybrid excitation,
Stator 4 forms, it is characterised in that: rotor with hybrid excitation is by the electrical excitation rotor of non-carbonate slip ring structure and combination type permanent-magnet rotor
Composition；
Combination type permanent-magnet rotor by axle the 2, first rectangle permanent-magnet steel 7, rotor core the 6, second rectangle permanent-magnet steel 5, every magnetic air gap 8 groups
Become, rotor core 6 be evenly equipped with even number and run through the radial direction rectangular channel of rotor core 6 thickness, radially the outer end of rectangular channel with turn
Do not connect between the cylindrical of sub-iron core 6, be provided with in the middle of the outer end of adjacent two radial direction rectangular channels and run through cutting of rotor core 6 thickness
To rectangular channel, radially rectangular channel does not connects with tangential rectangular channel, connects between outer end and the cylindrical of rotor core 6 of tangential rectangular channel
Logical, each tangential rectangular channel inner edge midpoint is the most equal with the line at rotor core 6 center, in the inner of each radial direction rectangular channel
Be provided with run through rotor core 6 thickness every magnetic air gap 8, adjacent does not connects every magnetic air gap 8, by the first rectangle permanent-magnet steel 7 according to
The N pole of adjacent two panels the first rectangle permanent-magnet steel 7 and N extremely relative to, S pole and S extremely relative to mode be sequentially arranged at radially rectangle
In groove, then by the second rectangle permanent-magnet steel 5 by the polarity of the second rectangle permanent-magnet steel 5 lateral surface first rectangle permanent magnetism adjacent with two panels
The mode that the polarity of steel 7 formation is identical is sequentially fixed in tangential rectangular channel by screw by pole shoe, and rotor core 6 is fitted in axle
On 2.
Claims (1)
1. brushless electromagnetism and combination type permanent-magnet composite excitation drive a motor, by drive end bearing bracket (9), rear end cap (1), casing (3),
Rotor with hybrid excitation, stator (4) form, it is characterised in that: rotor with hybrid excitation is by the electrical excitation rotor of non-carbonate slip ring structure
Form with combination type permanent-magnet rotor；
Combination type permanent-magnet rotor by axle (2), the first rectangle permanent-magnet steel (7), rotor core (6), the second rectangle permanent-magnet steel (5), every
Magnetic air gap (8) forms, and rotor core (6) is evenly equipped with even number and runs through the radial direction rectangular channel of rotor core (6) thickness, radially square
Do not connect between the outer end of shape groove and the cylindrical of rotor core (6), be provided with in the middle of the outer end of adjacent two radial direction rectangular channels and run through
The tangential rectangular channel of rotor core (6) thickness, radially rectangular channel does not connects with tangential rectangular channel, the outer end of tangential rectangular channel with turn
Connecting between the cylindrical of sub-iron core (6), each tangential rectangular channel inner edge midpoint is homogeneous with the line at rotor core (6) center
Deng, be provided with in the inner of each radial direction rectangular channel run through rotor core (6) thickness every magnetic air gap (8), adjacent every magnetic air gap
(8) do not connect, by the first rectangle permanent-magnet steel (7) according to the N pole of adjacent two panels the first rectangle permanent-magnet steel (7), S the most relative with N
Pole and S extremely relative to mode be sequentially arranged at radially in rectangular channel, then by the second rectangle permanent-magnet steel (5) by the second rectangle permanent-magnet steel
(5) the identical mode of the first rectangle permanent-magnet steel (7) that the polarity of lateral surface is adjacent with two panels is formed polarity by pole shoe by spiral shell
Nail is sequentially fixed in tangential rectangular channel, and rotor core (6) is fitted on axle (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610314129.9A CN105915009A (en) | 2016-05-13 | 2016-05-13 | Brushless electromagnetic and combined permanent magnet mixed excitation driving motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610314129.9A CN105915009A (en) | 2016-05-13 | 2016-05-13 | Brushless electromagnetic and combined permanent magnet mixed excitation driving motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105915009A true CN105915009A (en) | 2016-08-31 |
Family
ID=56748947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610314129.9A Pending CN105915009A (en) | 2016-05-13 | 2016-05-13 | Brushless electromagnetic and combined permanent magnet mixed excitation driving motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105915009A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105827039A (en) * | 2016-05-12 | 2016-08-03 | 张学义 | Composite permanent magnet and brushless electromagnetic hybrid excitation driving motor |
| CN105914995A (en) * | 2016-05-12 | 2016-08-31 | 张学义 | Combined permanent magnetic and electromagnetic mixed excitation driving motor |
| CN105958775A (en) * | 2016-05-11 | 2016-09-21 | 山东理工大学 | Permanent-magnetic and claw pole electromagnetic hybrid excitation drive motor |
-
2016
- 2016-05-13 CN CN201610314129.9A patent/CN105915009A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958775A (en) * | 2016-05-11 | 2016-09-21 | 山东理工大学 | Permanent-magnetic and claw pole electromagnetic hybrid excitation drive motor |
| CN105827039A (en) * | 2016-05-12 | 2016-08-03 | 张学义 | Composite permanent magnet and brushless electromagnetic hybrid excitation driving motor |
| CN105914995A (en) * | 2016-05-12 | 2016-08-31 | 张学义 | Combined permanent magnetic and electromagnetic mixed excitation driving motor |
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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: 20160831 |