CN108711973A - Rotor structure, permanent magnet auxiliary synchronous reluctance motor and electric automobile - Google Patents
Rotor structure, permanent magnet auxiliary synchronous reluctance motor and electric automobile Download PDFInfo
- Publication number
- CN108711973A CN108711973A CN201810433353.9A CN201810433353A CN108711973A CN 108711973 A CN108711973 A CN 108711973A CN 201810433353 A CN201810433353 A CN 201810433353A CN 108711973 A CN108711973 A CN 108711973A
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- 230000001360 synchronised effect Effects 0.000 title abstract description 3
- 230000001154 acute effect Effects 0.000 claims description 14
- 230000005389 magnetism Effects 0.000 claims description 13
- 210000002421 cell wall Anatomy 0.000 claims description 10
- 238000002955 isolation Methods 0.000 abstract 3
- 238000004080 punching Methods 0.000 description 11
- 229910052761 rare earth metal Inorganic materials 0.000 description 6
- 150000002910 rare earth metals Chemical class 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000004907 flux Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
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- 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
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- 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
- H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention provides a rotor structure, a permanent magnet auxiliary synchronous reluctance motor and an electric automobile. The rotor structure includes: the permanent magnet slot set comprises an inner layer permanent magnet slot and an outer layer permanent magnet slot, and the inner layer permanent magnet slot and the outer layer permanent magnet slot are arranged outwards at intervals along the radial direction of the rotor body; and the first end of the magnetic isolation bridge is connected with the first side wall of the inner permanent magnet groove, and the second end of the magnetic isolation bridge extends along the radial direction of the rotor body and is connected with the second side wall opposite to the first side wall of the inner permanent magnet groove. The magnetic isolation bridge is arranged in the inner permanent magnet, so that the mechanical strength of the rotor structure can be effectively improved, and the efficiency of the motor with the structure is effectively improved.
Description
Technical field
The present invention relates to electric vehicle devices technical fields, in particular to a kind of rotor structure, permanent magnetism assist in synchronization magnetic
Hinder motor and electric vehicle.
Background technology
Electric vehicle has the characteristics that energy-saving and environmental protection, has obtained rapid development.Existing driving motor for electric automobile is
Realize that the functions such as high power density, the high efficiency of motor, more and more motors use high-performance rare-earth permanent-magnetic motor.Rare earth
Magneto can realize high efficiency and high power density, depend on high performance rare-earth permanent magnet, and application is most at present
Be Fe-B rare-earth permanent magnet.But rare earth is a kind of non-renewable resources, price costly, and the fluctuation of rare earth price
Also larger, cause the production cost of driving motor for electric automobile higher, this is very not for pushing electric vehicle development in an all-round way
Profit.Further, ferrite permanent-magnet assist in synchronization reluctance motor is also applied to electric vehicle, but this kind in the prior art
The problems such as there are noises for motor greatly, easily demagnetizes, efficiency is low.
Invention content
The main purpose of the present invention is to provide a kind of rotor structure, permanent magnetism assist in synchronization reluctance motor and electric vehicle,
To solve the problems, such as that electric efficiency is low in the prior art.
To achieve the goals above, according to an aspect of the invention, there is provided a kind of rotor structure, including：Rotor sheet
Body offers permanent magnet trough group on rotor body, and permanent magnet trough group includes internal layer permanent magnet trough and outer layer permanent magnet trough, and internal layer is forever
Magnet slot and outer layer permanent magnet trough are positioned apart from outward along the radial direction of rotor body；Magnetic bridge, the first end of magnetic bridge
It is connected with the first side wall of internal layer permanent magnet trough, the second end of magnetic bridge extends along the radial direction of rotor body and and internal layer
The second sidewall that the first side wall of permanent magnet trough is opposite is connected.
Further, the first connection through-hole is offered in magnetic bridge.
Further, the first end and second end of internal layer permanent magnet trough along the radial direction of rotor body towards rotor body
Outer edge be extended, the first end of internal layer permanent magnet trough and the second end of internal layer permanent magnet trough are oppositely disposed and are located at turn
The both sides of the d-axis of sub- ontology, the first end and second end of outer layer permanent magnet trough along rotor body radial direction towards rotor sheet
The outer edge of body is extended, and the first end of outer layer permanent magnet trough and the second end of outer layer permanent magnet trough are oppositely disposed and are located at
The first end of the both sides of d-axis, the first end and outer layer permanent magnet trough of internal layer permanent magnet trough is disposed adjacently, and internal layer permanent magnet
The distance between the first end of slot and the first end of outer layer permanent magnet trough gradually increase outward along the radial direction of rotor body, interior
The distance between second end of second end and outer layer permanent magnet trough of layer permanent magnet trough along rotor body radial direction outward by
It is cumulative to add.
Further, it is located at the magnetic conduction channel between the first end and the first end of outer layer permanent magnet trough of internal layer permanent magnet trough
On offer the second connecting hole, and/or, be located at internal layer permanent magnet trough second end and the second end of outer layer permanent magnet trough between
Third connecting hole is offered on magnetic conduction channel.
Further, the first end of the first end of internal layer permanent magnet trough and outer layer permanent magnet trough is located at the rotation of rotor body
The front in direction, the second end of internal layer permanent magnet trough and the second end of outer layer permanent magnet trough are located at the direction of rotation of rotor body
Rear portion offers the 4th on the magnetic conduction channel between the second end and the second end of outer layer permanent magnet trough of internal layer permanent magnet trough
Connecting hole.
Further, it is located at the magnetic conduction channel between the first end and the first end of outer layer permanent magnet trough of internal layer permanent magnet trough
On be provided with the first button point, and/or, leading between the second end and the second end of outer layer permanent magnet trough of internal layer permanent magnet trough
The second button point is offered on magnet passage.
Further, it is located at the magnetic conduction channel between the first end and the first end of outer layer permanent magnet trough of internal layer permanent magnet trough
On be provided with the first button point, be located at internal layer permanent magnet trough second end and the second end of outer layer permanent magnet trough between magnetic conduction channel
On offer the second button point, the first button point is put with the second button to be asymmetricly arranged about the d-axis of rotor body.
Further, the first end of the first end of internal layer permanent magnet trough and outer layer permanent magnet trough is located at the rotation of rotor body
The front in direction, the second end of internal layer permanent magnet trough and the second end of outer layer permanent magnet trough are located at the direction of rotation of rotor body
Rear portion, the extension of the extended line and the cell wall of the first end of internal layer permanent magnet trough of the geometric center lines of the length direction of the first button point
Line has included angle B, the slot of the extended line and the second end of internal layer permanent magnet trough of the geometric center lines of the length direction of the second button point
The extended line of wall has included angle A, wherein A is acute angle and/or B is acute angle.
Further, A > B.
According to another aspect of the present invention, a kind of rotor structure is provided, including：Rotor body opens up on rotor body
There is a permanent magnet trough group, permanent magnet trough group includes internal layer permanent magnet trough and outer layer permanent magnet trough, internal layer permanent magnet trough and outer layer permanent magnetism
Body slot is positioned apart from outward along the radial direction of rotor body；The first end and second end of internal layer permanent magnet trough is along rotor body
The outer edge of radial direction towards rotor body be extended, the of the first end of internal layer permanent magnet trough and internal layer permanent magnet trough
Two ends are oppositely disposed and are located at the both sides of the d-axis of rotor body, and the first end and second end of outer layer permanent magnet trough is along rotor sheet
The outer edge of the radial direction of body towards rotor body is extended, the first end of outer layer permanent magnet trough and outer layer permanent magnet trough
Second end is oppositely disposed and is located at the both sides of d-axis, the first end of internal layer permanent magnet trough and the first end phase of outer layer permanent magnet trough
It is arranged adjacently, and the distance between the first end of internal layer permanent magnet trough and the first end of outer layer permanent magnet trough are along the diameter of rotor body
It is gradually increased outward to direction, the distance between the second end of internal layer permanent magnet trough and the second end of outer layer permanent magnet trough are along rotor
The radial direction of ontology gradually increases outward, is located between the first end and the first end of outer layer permanent magnet trough of internal layer permanent magnet trough
Magnetic conduction channel on offer the second connecting hole, and/or, be located at internal layer permanent magnet trough second end and outer layer permanent magnet trough the
Third connecting hole is offered on magnetic conduction channel between two ends.
Further, the first end of the first end of internal layer permanent magnet trough and outer layer permanent magnet trough is located at the rotation of rotor body
The front in direction, the second end of internal layer permanent magnet trough and the second end of outer layer permanent magnet trough are located at the direction of rotation of rotor body
Rear portion offers the 4th on the magnetic conduction channel between the second end and the second end of outer layer permanent magnet trough of internal layer permanent magnet trough
Connecting hole.
Further, it is located at the magnetic conduction channel between the first end and the first end of outer layer permanent magnet trough of internal layer permanent magnet trough
On be provided with the first button point, and/or, leading between the second end and the second end of outer layer permanent magnet trough of internal layer permanent magnet trough
The second button point is offered on magnet passage.
Further, it is located at the magnetic conduction channel between the first end and the first end of outer layer permanent magnet trough of internal layer permanent magnet trough
On be provided with the first button point, be located at internal layer permanent magnet trough second end and the second end of outer layer permanent magnet trough between magnetic conduction channel
On offer the second button point, the first button point is put with the second button to be asymmetricly arranged about the d-axis of rotor body.
Further, the first end of the first end of internal layer permanent magnet trough and outer layer permanent magnet trough is located at the rotation of rotor body
The front in direction, the second end of internal layer permanent magnet trough and the second end of outer layer permanent magnet trough are located at the direction of rotation of rotor body
Rear portion, the extension of the extended line and the cell wall of the first end of internal layer permanent magnet trough of the geometric center lines of the length direction of the first button point
Line has included angle B, the slot of the extended line and the second end of internal layer permanent magnet trough of the geometric center lines of the length direction of the second button point
The extended line of wall has included angle A, wherein A is acute angle and/or B is acute angle.
Further, A > B.
Further, rotor structure further includes：Magnetic bridge, the first side wall of the first end and internal layer permanent magnet trough of magnetic bridge
It is connected, the second end of magnetic bridge extends and opposite with the first side wall of internal layer permanent magnet trough along the radial direction of rotor body
Second sidewall is connected.
According to another aspect of the present invention, a kind of permanent magnetism assist in synchronization reluctance motor, including rotor structure, rotor are provided
Structure is above-mentioned rotor structure.
According to another aspect of the present invention, a kind of electric vehicle, including rotor structure are provided, rotor structure is above-mentioned
Permanent magnet rotor structure.
It applies the technical scheme of the present invention, magnetic bridge is set in internal layer permanent magnet, setting in this way can effectively improve
The mechanical strength of rotor structure, is effectively improved the efficiency of the motor with the structure.
Description of the drawings
The accompanying drawings which form a part of this application are used to provide further understanding of the present invention, and of the invention shows
Meaning property embodiment and its explanation are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 shows the structural schematic diagram of the first embodiment of rotor structure according to the present invention；
Fig. 2 shows the structural schematic diagrams of the second embodiment of rotor structure according to the present invention；
Fig. 3 shows the structural schematic diagram of the 3rd embodiment of rotor structure according to the present invention；
Fig. 4 shows the structural schematic diagram of the fourth embodiment of rotor structure according to the present invention；
Fig. 5 shows the structural schematic diagram of the fourth embodiment of rotor structure according to the present invention.
Wherein, above-mentioned attached drawing includes the following drawings label：
10, rotor body；11, internal layer permanent magnet trough；12, outer layer permanent magnet trough；
20, magnetic bridge；
31, the first connection through-hole；32, the second connecting hole；33, third connecting hole；34, the 4th connecting hole；
41, the first button point；42, the second button point；
50, permanent magnet.
Specific implementation mode
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
It should be noted that term used herein above is merely to describe specific implementation mode, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or combination thereof.
It should be noted that term " first ", " second " etc. in the description and claims of this application and attached drawing
It is for distinguishing similar object, without being used to describe specific sequence or precedence.It should be appreciated that the art used in this way
Language can be interchanged in the appropriate case, so that presently filed embodiment described herein for example can be in addition to illustrating herein
Or the sequence other than those of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that
Cover it is non-exclusive include, for example, containing the process of series of steps or unit, method, system, product or equipment need not limit
In those of clearly listing step or unit, but may include not listing clearly or for these processes, method, production
The intrinsic other steps of product or equipment or unit.
For ease of description, herein can with use space relative terms, as " ... on ", " in ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, if the device in attached drawing is squeezed, it is described as " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also other different modes positioning (be rotated by 90 ° or be in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
Now, the illustrative embodiments according to the application are more fully described with reference to the accompanying drawings.However, these are exemplary
Embodiment can be implemented by many different forms, and should not be construed to be limited solely to embodiment party set forth herein
Formula.It should be understood that thesing embodiments are provided so that disclosure herein is thoroughly and complete, and these are shown
The design of example property embodiment is fully conveyed to those of ordinary skill in the art, in the accompanying drawings, for the sake of clarity, it is possible to expand
The big thickness of layer and region, and make that identical device is presented with like reference characters, thus omission retouches them
It states.
In conjunction with shown in Fig. 1 to Fig. 5, according to an embodiment of the invention, a kind of rotor structure is provided.
Specifically, as shown in Figure 1, rotor structure includes rotor body 10.Permanent magnet trough group is offered on rotor body 10,
Permanent magnet trough group includes internal layer permanent magnet trough 11 and outer layer permanent magnet trough 12.12 edge of internal layer permanent magnet trough 11 and outer layer permanent magnet trough
The radial direction of rotor body 10 is positioned apart from outward.It is additionally provided with magnetic bridge 20 on rotor body 10, the of magnetic bridge 20
One end is connected with the first side wall of internal layer permanent magnet trough 11, and the second end of magnetic bridge 20 is prolonged along the radial direction of rotor body 10
It stretches and the second sidewall opposite with the first side wall of internal layer permanent magnet trough 11 is connected.
In the present embodiment, magnetic bridge is set in internal layer permanent magnet, and setting in this way can be effectively improved rotor knot
The mechanical strength of structure is effectively improved the efficiency of the motor with the structure.It, can be effective using the rotor structure of the structure
Ground reduces the production cost of rotor.Wherein, permanent magnet trough group is multiple, and multiple permanent magnet trough groups are between the circumferential direction of rotor body 10
It is arranged every ground.
Wherein, the first connection through-hole 31 is offered in magnetic bridge 20.Setting can facilitate rotor punching connection is solid in this way
It is fixed, it is effectively improved the stability of the rotor structure.
Further, the first end and second end of internal layer permanent magnet trough 11 along the radial direction of rotor body 10 towards rotor
The outer edge of ontology 10 is extended.The first end of internal layer permanent magnet trough 11 and the second end of internal layer permanent magnet trough 11 are relatively set
The both sides of the d-axis d of rotor body 10 are set and are located at, the first end and second end of outer layer permanent magnet trough 12 is along rotor body 10
The outer edge of radial direction towards rotor body 10 is extended, the first end and outer layer permanent magnet trough 12 of outer layer permanent magnet trough 12
Second end be oppositely disposed and be located at the both sides of d-axis d, first end and the outer layer permanent magnet trough 12 of internal layer permanent magnet trough 11
First end is disposed adjacently, and the distance between the first end of internal layer permanent magnet trough 11 and the first end of outer layer permanent magnet trough 12 edge
The radial direction of rotor body 10 gradually increases outward, the second end of internal layer permanent magnet trough 11 and the second of outer layer permanent magnet trough 12
The distance between end gradually increases outward along the radial direction of rotor body 10.In the present embodiment, 11 He of internal layer permanent magnet trough
Magnetic conduction channel (f1 in such as Fig. 1) is formed between outer layer permanent magnet trough 12, when 12 phase of internal layer permanent magnet trough 11 and outer layer permanent magnet trough
To the distance between both ends gradually increase when, the width in magnetic conduction channel also gradually increases accordingly, wherein internal layer permanent magnet trough
11 and 12 substantially U-shaped structure of outer layer permanent magnet trough.
Specifically, it is located at the first end of the first end and outer layer permanent magnet trough 12 of internal layer permanent magnet trough 11 in the present embodiment
Between magnetic conduction channel on offer the second connecting hole 32, be located at internal layer permanent magnet trough 11 second end and outer layer permanent magnet trough 12
Second end between magnetic conduction channel on offer third connecting hole 33.Setting can further improve the stabilization of rotor in this way
Property.
The first end of internal layer permanent magnet trough 11 and the first end of outer layer permanent magnet trough 12 are located at the rotation side of rotor body 10
To front, the second end of internal layer permanent magnet trough 11 and the second end of outer layer permanent magnet trough 12 are located at the rotation side of rotor body 10
To rear portion, open on the magnetic conduction channel between the second end and the second end of outer layer permanent magnet trough 12 of internal layer permanent magnet trough 11
Equipped with the 4th connecting hole 34.Under the premise of setting can ensure rotor stability in this way, rotor structure can also be effectively improved
Mechanical strength.
Certainly, in another embodiment of the application, it is located at the first end and outer layer permanent magnet of internal layer permanent magnet trough 11
It is provided with the first button point 41 on magnetic conduction channel between the first end of slot 12, is located at the second end and outer layer of internal layer permanent magnet trough 11
The second button point 42 is offered on magnetic conduction channel between the second end of permanent magnet trough 12.Setting can equally increase rotor punching in this way
The stability of piece connection.
Wherein, the first button point 41 is asymmetricly arranged with the second button point 42 about the d-axis of rotor body 10.It is arranged in this way
The connective stability of rotor structure can be improved.
Further, the first end of the first end of internal layer permanent magnet trough 11 and outer layer permanent magnet trough 12 is located at rotor body 10
Direction of rotation front, the second end of internal layer permanent magnet trough 11 and the second end of outer layer permanent magnet trough 12 are located at rotor body 10
Direction of rotation rear portion, the of extended line and the internal layer permanent magnet trough 11 of the geometric center lines of the length direction of the first button point 41
The extended line of the cell wall of one end has included angle B, and the extended line and internal layer of the geometric center lines of the length direction of the second button point 42 are forever
The extended line of the cell wall of the second end of magnet slot 11 has included angle A, wherein A is acute angle, and B is acute angle, and A > B.It is arranged in this way
The performance of rotor structure can be effectively improved.
In another embodiment of the application, as shown in Fig. 2, rotor structure includes rotor body 10.On rotor body 10
Permanent magnet trough group is offered, permanent magnet trough group includes internal layer permanent magnet trough 11 and outer layer permanent magnet trough 12, internal layer permanent magnet trough 11
Radial direction with outer layer permanent magnet trough 12 along rotor body 10 is positioned apart from outward.The first end of internal layer permanent magnet trough 11 and
Second end is extended along the outer edge of radial direction towards the rotor body 10 of rotor body 10, and the of internal layer permanent magnet trough 11
The second end of one end and internal layer permanent magnet trough 11 is oppositely disposed and is located at the both sides of the d-axis of rotor body 10, outer layer permanent magnet
The first end and second end of slot 12 is extended along the outer edge of radial direction towards the rotor body 10 of rotor body 10, outer layer
The first end of permanent magnet trough 12 and the second end of outer layer permanent magnet trough 12 are oppositely disposed and are located at the both sides of d-axis, internal layer permanent magnetism
The first end of body slot 11 and the first end of outer layer permanent magnet trough 12 are disposed adjacently, and the first end of internal layer permanent magnet trough 11 with it is outer
The distance between first end of layer permanent magnet trough 12 gradually increases outward along the radial direction of rotor body 10, internal layer permanent magnet trough
The distance between 11 second end and the second end of outer layer permanent magnet trough 12 gradually increase outward along the radial direction of rotor body 10
Add, is offered on the magnetic conduction channel between the first end and the first end of outer layer permanent magnet trough 12 of internal layer permanent magnet trough 11
Two connecting holes 32 are located on the magnetic conduction channel between the second end and the second end of outer layer permanent magnet trough 12 of internal layer permanent magnet trough 11
Offer third connecting hole 33.Setting can effectively improve the stability of rotor structure in this way.I.e. in the present embodiment with it is upper
State embodiment the difference is that：Magnetic bridge 20 is provided in above-described embodiment in internal layer permanent magnet trough 11, in the present embodiment
In can not internal layer permanent magnet trough 11 be arranged magnetic bridge 20.It is of course also possible to which magnetic bridge 20 is arranged simultaneously on rotor structure
With the second connecting hole 32 and third connecting hole 33.
Specifically, as shown in figure 3, the first end of the first end of internal layer permanent magnet trough 11 and outer layer permanent magnet trough 12 be located at turn
The front of the direction of rotation (f2 in such as Fig. 3) of sub- ontology 10, the second end of internal layer permanent magnet trough 11 and outer layer permanent magnet trough 12
Second end is located at the rear portion of the direction of rotation of rotor body 10, is located at the second end and outer layer permanent magnet trough of internal layer permanent magnet trough 11
The 4th connecting hole 34 is offered on magnetic conduction channel between 12 second end.
It is of course also possible to which the rotor structure is arranged to as shown in Figure 4 and Figure 5, to be located at the first of internal layer permanent magnet trough 11
It is provided with the first button point 41 on magnetic conduction channel between end and the first end of outer layer permanent magnet trough 12, and/or, it is located at internal layer permanent magnetism
The second button point 42 is offered on magnetic conduction channel between the second end and the second end of outer layer permanent magnet trough 12 of body slot 11.First button
Point 41 is asymmetricly arranged with the second button point 42 about the d-axis of rotor body 10.The first end and outer layer of internal layer permanent magnet trough 11
The first end of permanent magnet trough 12 is located at the front of the direction of rotation of rotor body 10, the second end and outer layer of internal layer permanent magnet trough 11
The second end of permanent magnet trough 12 is located at the rear portion of the direction of rotation of rotor body 10, and first detains in the geometry of the length direction of point 41
The extended line of the extended line of heart line and the cell wall of the first end of internal layer permanent magnet trough 11 has included angle B, the length of the second button point 42
The extended line of the geometric center lines in direction and the extended line of the cell wall of the second end of internal layer permanent magnet trough 11 have included angle A, wherein
A is acute angle, and B is acute angle.In the present embodiment, the first end of magnetic bridge 20 is connected with the first side wall of internal layer permanent magnet trough 11
It connects, the second end of magnetic bridge 20 extends and opposite with the first side wall of internal layer permanent magnet trough 11 along the radial direction of rotor body 10
Second sidewall be connected.
Rotor structure in above-described embodiment can be also used for permanent magnetism assist in synchronization reluctance motor equipment technical field, i.e. root
According to another aspect of the present invention, a kind of permanent magnetism assist in synchronization reluctance motor is provided.The motor includes rotor structure, rotor structure
For the rotor structure in above-described embodiment.
Further, above-mentioned rotor structure can be also used for electric vehicle equipment technical field, i.e., according to the present invention another
On the one hand, a kind of electric vehicle, including rotor structure are provided, rotor structure is the rotor structure in above-described embodiment.
Specifically, existing permanent magnetism assist in synchronization magnetic resistance motor rotor punching is efficiently solved using this rotor structure to connect
The problem of hole and self-clinching point reduce motor performance.The efficiency for improving motor reduces the cost of motor, increases the machinery of rotor
Intensity.
Rotor improves the salient pole ratio of motor, increases the reluctance torque of motor by using multilayer permanent magnet 50,
Compared to the torque density that existing permanent magnet synchronous motor can dramatically increase motor.Motor rotor core is generally by the silicon steel of magnetic conduction
Piece is overrided to form, and rotor punching connecting hole is provided on rotor core, and the position of connecting hole is generally located on rotor outer layer forever
The outside of magnet, and this part usually magnetic flux density is higher, when rotating at high speed, screw or rivet in connecting hole can also produce
Raw larger eddy-current loss, the setting of connecting hole can lead to the decline of electric efficiency.
By by this low magnetic flux density of rotor punching connecting hole setting magnetic bridge, the setting of rotor connecting hole being effectively relieved and has led
The efficiency of cause declines.
Magnetic conduction channel is formed between the inside and outside layer permanent magnet trough of rotor, wherein the magnetic conduction channel thickness close to both sides have from
The shape inside gradually to broaden outwardly is provided with rotor punching connecting hole in this magnetic conduction passage area, by expanding magnetic conduction channel
Thickness can effectively reduce the magnetic flux density of punching connection hole, improve the efficiency of motor.
Rotor punching connecting hole is positioned only at the magnetic conduction channel on rear side of rotor direction of rotation, and research finds rotor direction of rotation
The magnetic conduction channel magnetic flux density of rear side will be less than the magnetic conduction channel of rotation front side, can further reduce punching connecting hole pair
The influence of efficiency.
Magnetic conduction channel is formed between the inside and outside layer permanent magnet trough of rotor, wherein the magnetic conduction channel thickness close to both sides have from
The shape inside gradually to broaden outwardly is provided with rotor punching self-clinching point in this magnetic conduction passage area.Self-clinching point can be arranged
In this region, and the cylindricity that rotor punching laminates rear rotor core outer circle can be promoted, self-clinching point can also be reduced to turning
The blocking of sub- magnetic flux promotes the efficiency of motor.
Rotor self-clinching point is along d axis mal-distributions, and wherein the button point on front side of rotor direction of rotation is in length direction
Heart line forms one towards the acute angle B on the outside of rotor with internal layer permanent magnet trough surface, and the button point wherein on rear side of rotor direction of rotation exists
The center line of length direction forms one towards the acute angle A on the inside of rotor with internal layer permanent magnet trough surface.It can be with by this setting
So that self-clinching point is more obedient in the direction of length direction and the rotor different parts magnetic line of force, resistance of the self-clinching point to the magnetic line of force is reduced
Gear.Further, acute angle A is more than acute angle B, can obtain the more preferably effect for reducing magnetic line of force blocking.
Than that described above, it is also necessary to which explanation is " one embodiment " spoken of in the present specification, " another implementation
Example ", " embodiment " etc. refer to that specific features, structure or the feature of embodiment description is combined to be included in the application summary
Property description at least one embodiment in.It is not centainly to refer to the same reality that statement of the same race, which occur, in multiple places in the description
Apply example.Furthermore, it is understood that when describing a specific features, structure or feature in conjunction with any embodiment, what is advocated is knot
Other embodiment is closed to realize that this feature, structure or feature are also fallen within the scope of the present invention.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment
Point, it may refer to the associated description of other embodiment.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (18)
1. a kind of rotor structure, which is characterized in that including：
Rotor body (10), offers permanent magnet trough group on the rotor body (10), the permanent magnet trough group include internal layer forever
Magnet slot (11) and outer layer permanent magnet trough (12), the internal layer permanent magnet trough (11) and the outer layer permanent magnet trough (12) are along described
The radial direction of rotor body (10) is positioned apart from outward；
Magnetic bridge (20), the first end of the magnetic bridge (20) are connected with the first side wall of the internal layer permanent magnet trough (11),
The second end of the magnetic bridge (20) along the rotor body (10) radial direction extend and with the internal layer permanent magnet trough
(11) the opposite second sidewall of the first side wall is connected.
2. rotor structure according to claim 1, which is characterized in that it is logical to offer the first connection on the magnetic bridge (20)
Hole (31).
3. rotor structure according to claim 1, which is characterized in that the first end of the internal layer permanent magnet trough (11) and
Two ends are extended along the outer edge of radial direction towards the rotor body (10) of the rotor body (10), the internal layer
The second end of the first end of permanent magnet trough (11) and the internal layer permanent magnet trough (11) is oppositely disposed and is located at the rotor sheet
The both sides of the d-axis of body (10), the diameter of the first end and second end of the outer layer permanent magnet trough (12) along the rotor body (10)
It is extended to direction towards the outer edge of the rotor body (10), the first end of the outer layer permanent magnet trough (12) and described
The second end of outer layer permanent magnet trough (12) is oppositely disposed and is located at the both sides of the d-axis, the internal layer permanent magnet trough (11)
First end and the first end of the outer layer permanent magnet trough (12) are disposed adjacently, and the first end of the internal layer permanent magnet trough (11)
The distance between first end of the outer layer permanent magnet trough (12) is gradual outward along the radial direction of the rotor body (10)
Increase, the distance between the second end of the internal layer permanent magnet trough (11) and the second end of the outer layer permanent magnet trough (12) are along institute
The radial direction for stating rotor body (10) gradually increases outward.
4. rotor structure according to claim 3, which is characterized in that be located at the first end of the internal layer permanent magnet trough (11)
The second connecting hole (32) is offered on magnetic conduction channel between the first end of the outer layer permanent magnet trough (12), and/or, it is located at
It is opened on magnetic conduction channel between the second end and the second end of the outer layer permanent magnet trough (12) of the internal layer permanent magnet trough (11)
Equipped with third connecting hole (33).
5. rotor structure according to claim 3, which is characterized in that the first end of the internal layer permanent magnet trough (11) and institute
State outer layer permanent magnet trough (12) first end be located at the rotor body (10) direction of rotation front, the internal layer permanent magnet
The second end of the second end of slot (11) and the outer layer permanent magnet trough (12) is located at the direction of rotation of the rotor body (10)
Rear portion, the magnetic conduction being located between the second end and the second end of the outer layer permanent magnet trough (12) of the internal layer permanent magnet trough (11)
The 4th connecting hole (34) is offered on channel.
6. rotor structure according to claim 3, which is characterized in that be located at the first end of the internal layer permanent magnet trough (11)
The first button point (41) is provided on magnetic conduction channel between the first end of the outer layer permanent magnet trough (12), and/or, it is located at institute
It states and is opened up on the magnetic conduction channel between the second end of internal layer permanent magnet trough (11) and the second end of the outer layer permanent magnet trough (12)
There is the second button point (42).
7. rotor structure according to claim 3, which is characterized in that be located at the first end of the internal layer permanent magnet trough (11)
It is provided with the first button point (41) on magnetic conduction channel between the first end of the outer layer permanent magnet trough (12), is located at the internal layer
Second is offered on magnetic conduction channel between the second end of permanent magnet trough (11) and the second end of the outer layer permanent magnet trough (12)
Detain point (42), it is described first button point (41) with it is described second detain point (42) about the rotor body (10) d-axis asymmetricly
Setting.
8. rotor structure according to claim 7, which is characterized in that the first end of the internal layer permanent magnet trough (11) and institute
State outer layer permanent magnet trough (12) first end be located at the rotor body (10) direction of rotation front, the internal layer permanent magnet
The second end of the second end of slot (11) and the outer layer permanent magnet trough (12) is located at the direction of rotation of the rotor body (10)
Rear portion, the of extended line and the internal layer permanent magnet trough (11) of the geometric center lines of the length direction of the first button point (41)
The extended line of the cell wall of one end have included angle B, it is described second button point (42) length direction geometric center lines extended line with
The extended line of the cell wall of the second end of the internal layer permanent magnet trough (11) has included angle A, wherein A is acute angle and/or B is sharp
Angle.
9. rotor structure according to claim 8, which is characterized in that A > B.
10. a kind of rotor structure, which is characterized in that including：
Rotor body (10), offers permanent magnet trough group on the rotor body (10), the permanent magnet trough group include internal layer forever
Magnet slot (11) and outer layer permanent magnet trough (12), the internal layer permanent magnet trough (11) and the outer layer permanent magnet trough (12) are along described
The radial direction of rotor body (10) is positioned apart from outward；
Described in radial direction direction of the first end and second end of the internal layer permanent magnet trough (11) along the rotor body (10)
The outer edge of rotor body (10) is extended, the first end and the internal layer permanent magnet trough of the internal layer permanent magnet trough (11)
(11) second end is oppositely disposed and is located at the both sides of the d-axis of the rotor body (10), the outer layer permanent magnet trough (12)
First end and second end along the rotor body (10) radial direction towards the rotor body (10) outer edge extend
Setting, the first end of the outer layer permanent magnet trough (12) and the second end of the outer layer permanent magnet trough (12) are oppositely disposed and position
In the both sides of the d-axis, the first end phase of the first end of the internal layer permanent magnet trough (11) and the outer layer permanent magnet trough (12)
Be arranged adjacently, and between the first end of the internal layer permanent magnet trough (11) and the first end of the outer layer permanent magnet trough (12) away from
Gradually increased outward from the radial direction along the rotor body (10), the second end of the internal layer permanent magnet trough (11) with it is described
The distance between second end of outer layer permanent magnet trough (12) gradually increases outward along the radial direction of the rotor body (10), position
On magnetic conduction channel between the first end and the first end of the outer layer permanent magnet trough (12) of the internal layer permanent magnet trough (11)
The second connecting hole (32) is offered, and/or, it is located at the second end of the internal layer permanent magnet trough (11) and the outer layer permanent magnet trough
(12) third connecting hole (33) is offered on the magnetic conduction channel between second end.
11. rotor structure according to claim 10, which is characterized in that the first end of the internal layer permanent magnet trough (11) and
The first end of the outer layer permanent magnet trough (12) is located at the front of the direction of rotation of the rotor body (10), the internal layer permanent magnetism
The second end of the second end of body slot (11) and the outer layer permanent magnet trough (12) is located at the direction of rotation of the rotor body (10)
Rear portion, be located at the internal layer permanent magnet trough (11) second end and the second end of the outer layer permanent magnet trough (12) between leading
The 4th connecting hole (34) is offered on magnet passage.
12. rotor structure according to claim 10, which is characterized in that be located at the first of the internal layer permanent magnet trough (11)
It is provided with the first button point (41) on magnetic conduction channel between end and the first end of the outer layer permanent magnet trough (12), and/or, it is located at
It is opened on magnetic conduction channel between the second end and the second end of the outer layer permanent magnet trough (12) of the internal layer permanent magnet trough (11)
Equipped with the second button point (42).
13. rotor structure according to claim 10, which is characterized in that be located at the first of the internal layer permanent magnet trough (11)
It is provided with the first button point (41) on magnetic conduction channel between end and the first end of the outer layer permanent magnet trough (12), is located in described
The is offered on magnetic conduction channel between the second end and the second end of the outer layer permanent magnet trough (12) of layer permanent magnet trough (11)
2 button points (42), the first button point (41) and the second button point (42) are asymmetric about the d-axis of the rotor body (10)
Ground is arranged.
14. rotor structure according to claim 13, which is characterized in that the first end of the internal layer permanent magnet trough (11) and
The first end of the outer layer permanent magnet trough (12) is located at the front of the direction of rotation of the rotor body (10), the internal layer permanent magnetism
The second end of the second end of body slot (11) and the outer layer permanent magnet trough (12) is located at the direction of rotation of the rotor body (10)
Rear portion, extended line and the internal layer permanent magnet trough (11) of the geometric center lines of the length direction of the first button point (41)
The extended line of the cell wall of first end has included angle B, the extended line of the geometric center lines of the length direction of the second button point (42)
There is included angle A with the extended line of the cell wall of the second end of the internal layer permanent magnet trough (11), wherein A is acute angle and/or B is sharp
Angle.
15. rotor structure according to claim 14, which is characterized in that A > B.
16. rotor structure according to claim 10, which is characterized in that the rotor structure further includes：
Magnetic bridge (20), the first end of the magnetic bridge (20) are connected with the first side wall of the internal layer permanent magnet trough (11),
The second end of the magnetic bridge (20) along the rotor body (10) radial direction extend and with the internal layer permanent magnet trough
(11) the opposite second sidewall of the first side wall is connected.
17. a kind of permanent magnetism assist in synchronization reluctance motor, including rotor structure, which is characterized in that the rotor structure is wanted for right
Seek the rotor structure described in any one of 1 to 16.
18. a kind of electric vehicle, including rotor structure, which is characterized in that the rotor structure is any in claim 1 to 16
Rotor structure described in.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810433353.9A CN108711973B (en) | 2018-05-08 | 2018-05-08 | Rotor structure, permanent magnet auxiliary synchronous reluctance motor and electric automobile |
| PCT/CN2018/119819 WO2019214223A1 (en) | 2018-05-08 | 2018-12-07 | Rotor structure, permanent magnet assisted synchronous reluctance motor and electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810433353.9A CN108711973B (en) | 2018-05-08 | 2018-05-08 | Rotor structure, permanent magnet auxiliary synchronous reluctance motor and electric automobile |
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| Publication Number | Publication Date |
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| CN108711973A true CN108711973A (en) | 2018-10-26 |
| CN108711973B CN108711973B (en) | 2024-10-15 |
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| CN201810433353.9A Active CN108711973B (en) | 2018-05-08 | 2018-05-08 | Rotor structure, permanent magnet auxiliary synchronous reluctance motor and electric automobile |
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| Country | Link |
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| CN (1) | CN108711973B (en) |
| WO (1) | WO2019214223A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019214223A1 (en) * | 2018-05-08 | 2019-11-14 | 珠海格力电器股份有限公司 | Rotor structure, permanent magnet assisted synchronous reluctance motor and electric automobile |
| CN114362397A (en) * | 2022-02-21 | 2022-04-15 | 小米汽车科技有限公司 | Punching sheet structure, rotor assembly and motor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112968552B (en) * | 2021-01-26 | 2022-07-15 | 珠海格力电器股份有限公司 | Rotor assembly and self-starting permanent magnet synchronous reluctance motor |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1340898A (en) * | 2000-08-31 | 2002-03-20 | 雅马哈发动机株式会社 | Permanent-magnet rotor |
| CN101741199A (en) * | 2008-11-12 | 2010-06-16 | 通用汽车环球科技运作公司 | Methods and apparatus for a permanent magnet machine with an added air barrier |
| CN201754534U (en) * | 2010-06-29 | 2011-03-02 | 比亚迪股份有限公司 | Rotor of permanent-magnetic motor |
| CN102214964A (en) * | 2010-04-06 | 2011-10-12 | 珠海格力电器股份有限公司 | Single-phase self-starting permanent magnet motor rotor and manufacturing method thereof |
| CN102790456A (en) * | 2012-03-05 | 2012-11-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Permanent magnet auxiliary synchronized reluctance motor rotor iron core, motor and assembling method of motor |
| CN106787316A (en) * | 2016-12-22 | 2017-05-31 | 温岭市九洲电机制造有限公司 | A kind of lamination structure of magneto |
| WO2017202316A1 (en) * | 2016-05-27 | 2017-11-30 | 比亚迪股份有限公司 | Double-antipode permanent magnet synchronous motor and electric vehicle |
| CN206865235U (en) * | 2017-06-28 | 2018-01-09 | 安徽美芝制冷设备有限公司 | Stator punching, motor and compressor |
| CN208241427U (en) * | 2018-05-08 | 2018-12-14 | 珠海格力电器股份有限公司 | Rotor structure, permanent magnet auxiliary synchronous reluctance motor and electric automobile |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101425708A (en) * | 2007-10-31 | 2009-05-06 | 瑞智精密股份有限公司 | Permanent-magnetic electric motor |
| JP6480770B2 (en) * | 2015-03-20 | 2019-03-13 | オークマ株式会社 | Electric motor rotor |
| CN106953442A (en) * | 2017-03-27 | 2017-07-14 | 广东美芝精密制造有限公司 | Rotor, motor and its compressor of permagnetic synchronous motor |
| CN108711973B (en) * | 2018-05-08 | 2024-10-15 | 珠海格力电器股份有限公司 | Rotor structure, permanent magnet auxiliary synchronous reluctance motor and electric automobile |
-
2018
- 2018-05-08 CN CN201810433353.9A patent/CN108711973B/en active Active
- 2018-12-07 WO PCT/CN2018/119819 patent/WO2019214223A1/en active Application Filing
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1340898A (en) * | 2000-08-31 | 2002-03-20 | 雅马哈发动机株式会社 | Permanent-magnet rotor |
| CN101741199A (en) * | 2008-11-12 | 2010-06-16 | 通用汽车环球科技运作公司 | Methods and apparatus for a permanent magnet machine with an added air barrier |
| CN102214964A (en) * | 2010-04-06 | 2011-10-12 | 珠海格力电器股份有限公司 | Single-phase self-starting permanent magnet motor rotor and manufacturing method thereof |
| CN201754534U (en) * | 2010-06-29 | 2011-03-02 | 比亚迪股份有限公司 | Rotor of permanent-magnetic motor |
| CN102790456A (en) * | 2012-03-05 | 2012-11-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Permanent magnet auxiliary synchronized reluctance motor rotor iron core, motor and assembling method of motor |
| WO2017202316A1 (en) * | 2016-05-27 | 2017-11-30 | 比亚迪股份有限公司 | Double-antipode permanent magnet synchronous motor and electric vehicle |
| CN106787316A (en) * | 2016-12-22 | 2017-05-31 | 温岭市九洲电机制造有限公司 | A kind of lamination structure of magneto |
| CN206865235U (en) * | 2017-06-28 | 2018-01-09 | 安徽美芝制冷设备有限公司 | Stator punching, motor and compressor |
| CN208241427U (en) * | 2018-05-08 | 2018-12-14 | 珠海格力电器股份有限公司 | Rotor structure, permanent magnet auxiliary synchronous reluctance motor and electric automobile |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019214223A1 (en) * | 2018-05-08 | 2019-11-14 | 珠海格力电器股份有限公司 | Rotor structure, permanent magnet assisted synchronous reluctance motor and electric automobile |
| CN114362397A (en) * | 2022-02-21 | 2022-04-15 | 小米汽车科技有限公司 | Punching sheet structure, rotor assembly and motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108711973B (en) | 2024-10-15 |
| WO2019214223A1 (en) | 2019-11-14 |
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