CN110277851A - Mixed magneto rotor and its mixed magneto - Google Patents
Mixed magneto rotor and its mixed magneto Download PDFInfo
- Publication number
- CN110277851A CN110277851A CN201910665369.7A CN201910665369A CN110277851A CN 110277851 A CN110277851 A CN 110277851A CN 201910665369 A CN201910665369 A CN 201910665369A CN 110277851 A CN110277851 A CN 110277851A
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- Prior art keywords
- permanent magnet
- magnet
- internal layer
- outer layer
- isolation tank
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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
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The present invention relates to a kind of mixed magneto rotor and its mixed magnetos comprising rotor core；Several magnetic cells are set in the rotor core, it include an outer layer magnet isolation tank and two internal layer magnet isolation tanks in each magnetic cell, it is V-shaped between the two internal layers magnet isolation tank, and outer layer magnet isolation tank is located at two internal layer magnet isolation tanks and constitutes in the opening of V-type, outer layer permanent magnet is set in outer layer magnet isolation tank, internal layer permanent magnet is set in internal layer magnet isolation tank；In same magnetic cell, outer layer permanent magnet and internal layer permanent magnet magnetic pole having the same；Between two adjacent magnetic cells, opposite pole is presented between a magnetic cell ectonexine permanent magnet, internal layer permanent magnet and another magnetic cell ectonexine permanent magnet, internal layer permanent magnet.The present invention solves mutual restriction of the permanent magnet dosage between motor high power density/torque density, low cost and highly resistance demagnetization capability, achievees the purpose that high, low in cost, the anti-demagnetization capability of power of motor density is strong.
Description
Technical field
The present invention relates to a kind of rotor and mixed magneto, especially a kind of mixed magneto rotor and its mixed magnetoelectricity
Machine belongs to the technical field of motor.
Background technique
With it is industrialized upgrading and energy-saving and emission-reduction policy implementation, as industrial equipment power source motor energy efficiency by
Year is promoted.Magneto, especially rare-earth permanent-magnet electric machine are wide in recent years because of its high power/high torque density, efficient advantage
It is general to be used for all trades and professions, and gradually substitute original induction machine.Rare earth is as national strategy stockpile, exploitation and refinement
Environmental pollution is very big, and with the increase of environmental consciousness and cost of labor, rare-earth permanent magnet cost accounts for the ratio of motor assembly sheet
Increase year by year.There is an urgent need to the rare-earth permanent-magnet electric machines of high efficiency, low cost in market.
Technically, it is often used the scheme of no rare earth or light rare earth in the past to reduce the cost of magneto, while keeping electricity
The efficiency of machine does not reduce.But using ferrite replacement rare-earth permanent magnet without rare-earth technique scheme, meeting efficiency and cost
In the case of, it will increase the volume of motor, it is difficult to meet certain pairs of motor weight and the very high occasion of requirements of installation space；Using light
The permanent magnetic motor scheme of rare earth, though electric efficiency, cost and volume can satisfy requirement, after replacing heavy rare earth because of light rare earth,
The anti-demagnetization capability of magneto declines, so that motor demagnetization risk increases, reliability is reduced.
Therefore, a kind of efficient, low in cost, high reliability motor is urgently studied.
Summary of the invention
The purpose of the present invention is overcoming the deficiencies in the prior art, a kind of mixed magneto rotor and its mixed magnetic are provided
Motor, it is mutual between motor high power density/torque density, low cost and highly resistance demagnetization capability which solve permanent magnet dosages
It restricts, achievees the purpose that high, low in cost, the anti-demagnetization capability of power of motor density is strong.
According to technical solution provided by the invention, the mixed magneto rotor, including rotor core；In the rotor iron
Several magnetic cells are arranged in in-core, include an outer layer magnet isolation tank and two internal layer magnet isolation tanks in each magnetic cell, in described two
It is V-shaped between layer magnet isolation tank, and outer layer magnet isolation tank is located at two internal layer magnet isolation tanks and constitutes in the opening of V-type, sets in outer layer magnet isolation tank
Outer layer permanent magnet is set, internal layer permanent magnet is set in internal layer magnet isolation tank；
In same magnetic cell, outer layer permanent magnet and internal layer permanent magnet magnetic pole having the same；To two adjacent magnetic cells
Between, it is presented between a magnetic cell ectonexine permanent magnet, internal layer permanent magnet and another magnetic cell ectonexine permanent magnet, internal layer permanent magnet different
Property magnetic pole.
The rotor core is located in the inner circle of stator, and the opening that two internal layer magnet isolation tanks constitute V-type is directed toward stator；
When outer layer permanent magnet, internal layer permanent magnet are rare-earth permanent magnet, meet following relational expression: 1.2Ln≤Lw≤2Ln；
When outer layer permanent magnet, internal layer permanent magnet are ferrite permanent magnet, meet following relational expression: 1.5Ln≤Lw≤
2.4LnAnd Lc< Lnw< Lbc；
Wherein, LnFor the thickness of internal layer permanent magnet, LwFor the thickness of outer layer permanent magnet, LcFor the stator facewidth, LnwFor rotor iron
Adjacent inner layer magnet isolation tank, L between the adjacent magnetic cell of in-corebcFor yoke portion width.
The outer layer magnet isolation tank is in "-" type, and outer layer magnet isolation tank is on rotor core close to the outer ring side of the rotor core
Edge.
A kind of mixed magneto, including machine shaft and the rotor and stator that are assemblied on the machine shaft, described turn
Son is located in the inner circle of stator, and the rotor includes rotor core, it is characterized in that: several magnetic lists are arranged in the rotor core
Member, includes an outer layer magnet isolation tank and two internal layer magnet isolation tanks in each magnetic cell, V-shaped between the two internal layers magnet isolation tank,
And outer layer magnet isolation tank is located at two internal layer magnet isolation tanks and constitutes in the opening of V-type, outer layer permanent magnet is arranged in outer layer magnet isolation tank, inside
Internal layer permanent magnet is set in layer magnet isolation tank；
In same magnetic cell, outer layer permanent magnet and internal layer permanent magnet magnetic pole having the same；To two adjacent magnetic cells
Between, it is presented between a magnetic cell ectonexine permanent magnet, internal layer permanent magnet and another magnetic cell ectonexine permanent magnet, internal layer permanent magnet different
Property magnetic pole.
The opening that two internal layer magnet isolation tanks of one magnetic cell constitute V-type is directed toward stator；
When outer layer permanent magnet, internal layer permanent magnet are rare-earth permanent magnet, meet following relational expression: 1.2Ln≤Lw≤2Ln；
When outer layer permanent magnet, internal layer permanent magnet are ferrite permanent magnet, meet following relational expression: 1.5Ln≤Lw≤
2.4LnAnd Lc< Lnw< Lbc；
Wherein, LnFor the thickness of internal layer permanent magnet, LwFor the thickness of outer layer permanent magnet, LcFor the stator facewidth, LnwFor rotor iron
Adjacent inner layer magnet isolation tank, L between the adjacent magnetic cell of in-corebcFor the yoke portion width of stator core.
The outer layer magnet isolation tank is in "-" type, and outer layer magnet isolation tank is on rotor core close to the outer ring side of the rotor core
Edge.
The stator includes stator core, and several stator core slots are arranged in the stator core, and stator winding is placed in
In stator core slot.
Advantages of the present invention: being arranged several magnetic cells in rotor core, includes an outer layer in each magnetic cell every magnetic
Slot and two internal layer magnet isolation tanks, two internal layer magnet isolation tanks are V-shaped, and outer layer magnet isolation tank is located at internal layer magnet isolation tank and constitutes opening for V-type
In mouthful, internal layer permanent magnet is set in internal layer magnet isolation tank, internal layer permanent magnet is set in internal layer magnet isolation tank；In same magnetic cell
It is interior, outer layer permanent magnet and internal layer permanent magnet magnetic pole having the same；Between two adjacent magnetic cells, a magnetic cell ectonexine permanent magnetism
Opposite pole is presented between body, internal layer permanent magnet and another magnetic cell ectonexine permanent magnet, internal layer permanent magnet, to solve permanent magnetism
Mutual restriction of the body dosage between motor high power density/torque density, low cost and highly resistance demagnetization capability, so that power of motor
High, low in cost, the anti-demagnetization capability of density is strong.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of rotor of the present invention.
Fig. 2 is the structural schematic diagram of stator of the present invention.
Fig. 3 is the cooperation schematic diagram of stator of the present invention, rotor and machine shaft.
Description of symbols: 1- stator, 2- rotor, 3- machine shaft, 4- stator core, 5- stator winding, 6- outer layer are forever
Magnet, 7- rotor core, 8- outer layer magnet isolation tank, 9- internal layer magnet isolation tank, 10- stator core slot and 11- internal layer permanent magnet.
Specific embodiment
Below with reference to specific drawings and examples, the invention will be further described.
It is moved back as shown in Figure 1: in order to solve permanent magnet dosage in motor high power density/torque density, low cost and highly resistance
Mutual restriction between magnetic energy power achievees the purpose that high, low in cost, the anti-demagnetization capability of power of motor density is strong, and of the invention turns
Son 2 includes rotor core 7；Several magnetic cells are set in the rotor core 7, include an outer layer in each magnetic cell every magnetic
Slot 8 and two internal layer magnet isolation tanks 9, it is V-shaped between the two internal layers magnet isolation tank 9, and outer layer magnet isolation tank 8 is located at two internal layer magnet isolation tanks
9 are constituted in the opening of V-type, and outer layer permanent magnet 6 is arranged in outer layer magnet isolation tank 8, and internal layer permanent magnet is arranged in internal layer magnet isolation tank 9
11；
In same magnetic cell, outer layer permanent magnet 6 and the magnetic pole having the same of internal layer permanent magnet 11；To two adjacent magnetic lists
Between member, a magnetic cell ectonexine permanent magnet 6, internal layer permanent magnet 11 and another magnetic cell ectonexine permanent magnet 6, internal layer permanent magnet 11
Between opposite pole is presented.
Specifically, the quantity of magnetic cell can according to need and be selected in rotor core 7, specially the art people
Known to member, details are not described herein again.It include an outer layer magnet isolation tank 8 and two for each magnetic cell in rotor core 7
Internal layer magnet isolation tank 9, forms the structure of V-type between two internal layer magnet isolation tanks 9, and outer layer magnet isolation tank 8 is located at two internal layer magnet isolation tanks 9 and constitutes
In the opening of V-type, when it is implemented, the outer layer magnet isolation tank 8 is in "-" type, outer layer magnet isolation tank 8 is on rotor core 7 close to institute
State the outer ring edge of rotor core 7.
In the embodiment of the present invention, outer layer permanent magnet 6 is set in outer layer magnet isolation tank 8, is all provided in each internal layer magnet isolation tank 9
Set internal layer permanent magnet 11；Wherein, in same magnetic cell, outer layer permanent magnet 6 and the magnetic pole having the same of internal layer permanent magnet 11；It is right
Between two adjacent magnetic cells, a magnetic cell ectonexine permanent magnet 6, internal layer permanent magnet 11 and another magnetic cell ectonexine permanent magnet 6,
Opposite pole is presented between internal layer permanent magnet 11.In Fig. 1, a magnetic cell ectonexine permanent magnet 6, internal layer permanent magnet 11 are N magnetic
Pole, outer layer permanent magnet 6, internal layer permanent magnet 11 in another adjacent magnetic cell are S magnetic pole.
Further, the rotor core 7 is located in the inner circle of stator 1, and the opening that two internal layer magnet isolation tanks 9 constitute V-type refers to
To stator 1；
When outer layer permanent magnet 6, internal layer permanent magnet 11 are rare-earth permanent magnet, meet following relational expression: 1.2Ln≤Lw≤
2Ln；
When outer layer permanent magnet 6, internal layer permanent magnet 11 are ferrite permanent magnet, meet following relational expression: 1.5Ln≤Lw≤
2.4LnAnd Lc< Lnw< Lbc；
Wherein, LnFor the thickness of internal layer permanent magnet 11, LwFor the thickness of outer layer permanent magnet 6, LcFor the stator facewidth, LnwTo turn
Adjacent inner layer magnet isolation tank 9, L between adjacent magnetic cell in sub- iron core 7bcFor the yoke portion width of stator 1.
In the embodiment of the present invention, stator 1 and rotor 2 cooperate, i.e., rotor core 7 is located in the inner circle of stator 1, and two internal layers
The opening that magnet isolation tank 9 constitutes V-type is directed toward stator 1, and outer layer magnet isolation tank 8 is at the outer ring edge of rotor core 7.When it is implemented, two
Internal layer isolation channel 9 is symmetrically distributed in the two sides of 8 axis of outer layer isolation channel.And according to outer layer permanent magnet 6,11 type of internal layer permanent magnet
Difference, rotor core 7, stator 1 need to meet corresponding condition.
As shown in Figure 1, Figure 2 and Figure 3, mixed magneto can be obtained, specifically, mixed magneto includes machine shaft 3 and dress
Assigned in the rotor 2 and stator 1 on the machine shaft 3, the rotor 2 is located in the inner circle of stator 1, and the rotor 2 includes turning
Several magnetic cells are arranged in the rotor core 7 in sub- iron core 7, include an outer layer magnet isolation tank 8 and two in each magnetic cell
A internal layer magnet isolation tank 9, it is V-shaped between the two internal layers magnet isolation tank 9, and outer layer magnet isolation tank 8 is located at two internal layer magnet isolation tanks 9 and constitutes V-type
Opening in, in outer layer magnet isolation tank 8 be arranged outer layer permanent magnet 6, in internal layer magnet isolation tank 9 be arranged internal layer permanent magnet 11；
In same magnetic cell, outer layer permanent magnet 6 and the magnetic pole having the same of internal layer permanent magnet 11；To two adjacent magnetic lists
Between member, a magnetic cell ectonexine permanent magnet 6, internal layer permanent magnet 11 and another magnetic cell ectonexine permanent magnet 6, internal layer permanent magnet 11
Between opposite pole is presented.
In the embodiment of the present invention, the opening that two internal layer magnet isolation tanks 9 of a magnetic cell constitute V-type is directed toward stator 1；
When outer layer permanent magnet 6, internal layer permanent magnet 11 are rare-earth permanent magnet, meet following relational expression: 1.2Ln≤Lw≤
2Ln；
When outer layer permanent magnet 6, internal layer permanent magnet 11 are ferrite permanent magnet, meet following relational expression: 1.5Ln≤Lw≤
2.4LnAnd Lc< Lnw< Lbc；
Wherein, LnFor the thickness of internal layer permanent magnet 11, LwFor the thickness of outer layer permanent magnet 6, LcFor the stator facewidth, LnwTo turn
Adjacent inner layer magnet isolation tank 9, L between adjacent magnetic cell in sub- iron core 7bcFor the yoke portion width of stator core 4.
The outer layer magnet isolation tank 8 is in "-" type, and outer layer magnet isolation tank 8 is on rotor core 7 close to the outer of the rotor core 7
Enclose edge.The stator 1 includes stator core 4, and several stator core slots 10, stator winding 5 are arranged in the stator core 4
It is placed in stator core slot 10.
In the embodiment of the present invention, stator core 5 is multi-groove structure, i.e., the quantity of stator core slot 10 is S (S is greater than 1),
Stator winding 5 is placed in stator coring groove 10.Rotor core 7 is placed in the inner circle of stator core 4, and 7 inside of rotor core is close
Rotor outer circle is provided with P (P=2p, p are number of pole-pairs=1,2,3 ...) magnetic cell.
The present invention is arranged several magnetic cells in rotor core 7, include in each magnetic cell an outer layer magnet isolation tank 8 and
Two internal layer magnet isolation tanks 9, two internal layer magnet isolation tanks 9 are V-shaped, and outer layer magnet isolation tank 8 is located at the opening that internal layer magnet isolation tank 9 constitutes V-type
It is interior, internal layer permanent magnet 6 is set in internal layer magnet isolation tank 8, internal layer permanent magnet 11 is set in internal layer magnet isolation tank 9；In same magnetic list
In member, outer layer permanent magnet 6 and the magnetic pole having the same of internal layer permanent magnet 11；Between two adjacent magnetic cells, inside and outside a magnetic cell
Opposite pole is presented between layer permanent magnet 6, internal layer permanent magnet 11 and another magnetic cell ectonexine permanent magnet 6, internal layer permanent magnet 11, from
And solve mutual restriction of the permanent magnet dosage between motor high power density/torque density, low cost and highly resistance demagnetization capability,
So that high, low in cost, the anti-demagnetization capability of power of motor density is strong.
Claims (7)
1. a kind of mixed magneto rotor, including rotor core (7)；It is characterized in that: setting is several in the rotor core (7)
Magnetic cell includes an outer layer magnet isolation tank (8) and two internal layer magnet isolation tanks (9) in each magnetic cell, and two internal layer is every magnetic
It is V-shaped between slot (9), and outer layer magnet isolation tank (8) is located at two internal layer magnet isolation tanks (9) and constitutes in the opening of V-type, in outer layer magnet isolation tank
(8) outer layer permanent magnet (6) are set in, internal layer permanent magnet (11) are set in internal layer magnet isolation tank (9)；
In same magnetic cell, outer layer permanent magnet (6) and internal layer permanent magnet (11) magnetic pole having the same；To two adjacent magnetic lists
Between member, a magnetic cell ectonexine permanent magnet (6), internal layer permanent magnet (11) and another magnetic cell ectonexine permanent magnet (6), internal layer are forever
Opposite pole is presented between (11) in magnet.
2. mixed magneto rotor according to claim 1, it is characterized in that: the rotor core (7) is located at stator (1)
In inner circle, the opening that two internal layer magnet isolation tanks (9) constitute V-type is directed toward stator (1)；
When outer layer permanent magnet (6), internal layer permanent magnet (11) are rare-earth permanent magnet, meet following relational expression: 1.2Ln≤Lw≤
2Ln；
When outer layer permanent magnet (6), internal layer permanent magnet (11) are ferrite permanent magnet, meet following relational expression: 1.5Ln≤Lw≤
2.4LnAnd Lc< Lnw< Lbc；
Wherein, LnFor the thickness of internal layer permanent magnet (11), LwFor the thickness of outer layer permanent magnet (6), LcFor the stator facewidth, LnwTo turn
Adjacent inner layer magnet isolation tank (9), L between adjacent magnetic cell in sub- iron core (7)bcFor the yoke portion width of stator (1).
3. mixed magneto rotor according to claim 1 or 2, it is characterized in that: the outer layer magnet isolation tank (8) is in a word
Type, outer layer magnet isolation tank (8) is on rotor core (7) close to the outer ring edge of the rotor core (7).
4. a kind of mixed magneto, including machine shaft (3) and the rotor (2) and stator that are assemblied on the machine shaft (3)
(1), the rotor (2) is located in the inner circle of stator (1), and the rotor (2) includes rotor core (7), it is characterized in that: described
Several magnetic cells of setting in rotor core (7) include an outer layer magnet isolation tank (8) and two internal layers every magnetic in each magnetic cell
Slot (9), it is V-shaped between the two internal layers magnet isolation tank (9), and outer layer magnet isolation tank (8) is located at two internal layer magnet isolation tanks (9) and constitutes V-type
In opening, outer layer permanent magnet (6) are set in outer layer magnet isolation tank (8), internal layer permanent magnet is set in internal layer magnet isolation tank (9)
(11)；
In same magnetic cell, outer layer permanent magnet (6) and internal layer permanent magnet (11) magnetic pole having the same；To two adjacent magnetic lists
Between member, a magnetic cell ectonexine permanent magnet (6), internal layer permanent magnet (11) and another magnetic cell ectonexine permanent magnet (6), internal layer are forever
Opposite pole is presented between (11) in magnet.
5. mixed magneto according to claim 4, it is characterized in that: two internal layer magnet isolation tanks (9) of a magnetic cell constitute V-type
Opening is directed toward stator (1)；
When outer layer permanent magnet (6), internal layer permanent magnet (11) are rare-earth permanent magnet, meet following relational expression: 1.2Ln≤Lw≤
2Ln；
When outer layer permanent magnet (6), internal layer permanent magnet (11) are ferrite permanent magnet, meet following relational expression: 1.5Ln≤Lw≤
2.4LnAnd Lc< Lnw< Lbc；
Wherein, LnFor the thickness of internal layer permanent magnet (11), LwFor the thickness of outer layer permanent magnet (6), LcFor the stator facewidth, LnwTo turn
Adjacent inner layer magnet isolation tank (9), L between adjacent magnetic cell in sub- iron core (7)bcFor the yoke portion width of stator core (4).
6. mixed magneto according to claim 4 or 5, it is characterized in that: the outer layer magnet isolation tank (8) is in "-" type, outer layer
Magnet isolation tank (8) is on rotor core (7) close to the outer ring edge of the rotor core (7).
7. mixed magneto according to claim 4, it is characterized in that: the stator (1) includes stator core (4), described
Several stator core slots (10) of setting in stator core (4), stator winding (5) are placed in stator core slot (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910665369.7A CN110277851A (en) | 2019-07-23 | 2019-07-23 | Mixed magneto rotor and its mixed magneto |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910665369.7A CN110277851A (en) | 2019-07-23 | 2019-07-23 | Mixed magneto rotor and its mixed magneto |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110277851A true CN110277851A (en) | 2019-09-24 |
Family
ID=67965072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910665369.7A Withdrawn CN110277851A (en) | 2019-07-23 | 2019-07-23 | Mixed magneto rotor and its mixed magneto |
Country Status (1)
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Application publication date: 20190924 |
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