CN109450138A - Embedded magnet steel outer rotor iron core component and hub motor - Google Patents
Embedded magnet steel outer rotor iron core component and hub motor Download PDFInfo
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- CN109450138A CN109450138A CN201811629837.7A CN201811629837A CN109450138A CN 109450138 A CN109450138 A CN 109450138A CN 201811629837 A CN201811629837 A CN 201811629837A CN 109450138 A CN109450138 A CN 109450138A
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- magnet steel
- embedded groove
- embedded
- iron core
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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
- H02K1/2786—Outer rotors
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
This application involves hub motor technical fields, and more particularly, to a kind of embedded magnet steel outer rotor iron core component and hub motor, embedded magnet steel outer rotor iron core component includes rotor core and multiple groups magnet steel；Each group of magnet steel includes the first magnet steel and the second magnet steel, and the two is along the radial distribution of stator；First magnet steel is that V-type is segmented magnet steel, and the second magnet steel is U-shaped segmentation magnet steel；Rotor core is provided with multiple groups embedded groove；Each group of embedded groove includes the first embedded groove and the second embedded groove, and the first magnet steel is arranged in the first embedded groove, and the second magnet steel is arranged in the second embedded groove.It can be seen that, magnet steel is mounted in embedded groove, simply, conveniently, and V-type magnet steel is combined with U-shaped magnet steel, versatile and flexible, U-shaped magnet steel compensates the poly- magnetic effect of V-type magnet steel, on the basis of increasing magnetic flux, convex grey subset changes greatly, the reasonably optimizing magnetic circuit effect of d axis and q axis, flux density of the hub motor under big torque is reduced, torque density is improved.
Description
Technical field
This application involves hub motor technical fields, more particularly, to a kind of embedded magnet steel outer rotor iron core component and wheel
Hub motor.
Background technique
Currently, electric vehicle refers to using vehicle power supply as power, with motor driven wheels travel, meet road traffic, safety
The vehicle of regulation requirements, since effect on environment is smaller with respect to orthodox car, its prospects are considered optimistic wildly.It is existing electronic
Vehicle mostly uses hub motor, i.e., is all integrated into power, transmission and brake apparatus in wheel hub, the wheel hub unlike ordinary motor
Motor uses outer-rotor structure, and hub motor in the prior art generally uses the magnet steel of surface-mount type, i.e., bonded by glue
Form, structure is insecure, and is easy demagnetization, in addition, the rotor core polygamy of hub motor is equipped with single layer "-" type or single layer V
Type etc., and U-shaped single layer, double "-" types, double V or double-U-shaped magnet steel are then used for the rotor core of certain ordinary motors,
In, long for the magnetic circuit of above-mentioned single layer magnet steel, core loss is big, and the above-mentioned double-deck magnet steel is arranged for identical structure and the row of interval
Together, the angle of two magnet steel, spacing everywhere etc. are more consistent, and combined flexibility is poor, and poly- magnetic compensation is small for cloth, convex grey subset variation
Small, so that torque raising is small, overload capacity and response speed are small.
Summary of the invention
The application's is designed to provide a kind of embedded magnet steel outer rotor iron core component and hub motor, existing to solve
Hub motor present in technology mostly uses the magnet steel of surface-mount type, and structure is insecure, demagnetization is easy, in addition, for existing list
The magnetic steel structure of layer or the double-deck similar shape, combined flexibility is poor, and poly- magnetic compensation is small, and convex grey subset variation is small, so that turning
Square improves small, overload capacity and the small technical problem of response speed.
This application provides a kind of embedded magnet steel outer rotor iron core components, comprising: stator core, rotor core and more
Group magnet steel；Wherein, the rotor core is circumferentially arranged along the outer of stator core of hub motor；Magnet steel packet described in any one group
The first magnet steel and the second magnet steel are included, and first magnet steel and second magnet steel divide along the radial direction of the stator
Cloth；First magnet steel is that V-type is segmented magnetic steel structure, and second magnet steel is U-shaped segmentation magnetic steel structure；The rotor core is set
It is equipped with multiple groups embedded groove；Embedded groove described in any one group includes the first embedded groove and the second embedded groove, and first magnet steel is set
It sets in first embedded groove, second magnet steel is arranged in second embedded groove.
In the above-mentioned technical solutions, further, the opening of first magnet steel and second magnet steel is towards institute
State stator core；Or the opening of first magnet steel and second magnet steel is towards the rotor core.
In any of the above-described technical solution, further, first magnet steel is adapted with first embedded groove or mistake
It is full of cooperation；Second magnet steel is adapted or is interference fitted with second embedded groove.
In any of the above-described technical solution, further, the side wall of first embedded groove offers the first limiting slot, institute
It states the first magnet steel and is provided with the first retention bead for protruding from its outer surface, first retention bead is plugged in first limit
In the slot of position；The side wall of second embedded groove offers the second limiting slot, and second magnet steel, which is provided with, protrudes from its outer surface
The second retention bead, second retention bead is plugged in second limiting slot.
In any of the above-described technical solution, further, it is arranged between the adjacent segmentation magnet steel in first magnet steel
There is magnetic conduction bridge；Magnetic conduction bridge is also equipped between adjacent segmentation magnet steel in second magnet steel.
In any of the above-described technical solution, further, two segmentation magnet steel being disposed adjacent in first magnet steel it
Between the angle that is formed be 100 °~170 °；The angle that is formed is between spaced two segmentations magnet steel in second magnet steel
110 °~175 °.
In any of the above-described technical solution, further, the circumferential edge of first embedded groove is provided with the first buckle,
First buckle is for be located in first magnet steel；The circumferential edge of second embedded groove is provided with the second buckle,
Second buckle is for be located in second magnet steel.
In any of the above-described technical solution, further, magnet steel described in multiple groups is along the circumferential uniform of the rotor core
Arrangement；Embedded groove described in multiple groups is uniformly distributed along the stator core；Magnet steel described in multiple groups and embedded groove phase one described in multiple groups
One is corresponding.
Present invention also provides a kind of hub motors, including embedded magnet steel outer rotor described in any of the above-described technical solution
Core assembly, thus, whole advantageous effects with the device, here, repeating no more.
In any of the above-described technical solution, further, the hub motor further includes fixing axle stator core and wheel
Hub shell；Wherein, the fixing axle is threaded through on the hub shell, and is arranged between the fixing axle and the hub shell
There is bearing；The stator core is sheathed in the fixing axle；The inner wall of the hub shell is arranged in the rotor core
On, and the rotor core can follow the hub shell to rotate relative to the fixing axle.
Compared with prior art, the application has the beneficial effect that
Embedded magnet steel outer rotor iron core component provided by the present application, the first magnet steel are stably placed at the first embedded groove
Interior, the second magnet steel is stably placed in the second embedded groove, is easily installed and is operated, and the behaviour fixed using gluing is avoided
Make；First magnet steel is that V-type is segmented magnetic steel structure, and the second magnet steel is U-shaped segmentation magnetic steel structure, and the first magnet steel and the second magnet steel
Along the radial distribution of stator, i.e. the first magnet steel is located at outside, the second magnet steel is located inside or the second magnet steel be located at outside,
First magnet steel is located inside, and V-type segmentation magnet steel and U-shaped segmentation magnet steel are combined together, angle between the two, between the two
The more flexible multiplicity of distance change, and U-shaped magnet steel has carried out effective compensation to the poly- magnetic effect of V-type magnet steel, is increasing magnetic
On the basis of logical, convex grey subset changes greatly, and the reasonably optimizing magnetic circuit effect of d axis and q axis, and hub motor can be effectively reduced big
Flux density under torque, and then torque density is promoted, also improve overload capacity and response speed.
Hub motor provided by the present application thus has including embedded magnet steel outer rotor iron core component described above
Outer-rotor structure is stablized, and the magnet steel combination of outer rotor is versatile and flexible, and U-shaped magnet steel has the poly- magnetic effect of V-type magnet steel
The compensation of effect, on the basis of increasing magnetic flux, convex grey subset changes greatly, and the reasonably optimizing magnetic circuit effect of d axis and q axis, can have
Effect reduces flux density of the hub motor under big torque, and then promotes torque density, also improves overload capacity and response speed, makes
Hub motor it is more efficient, response faster, output torque it is bigger.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the application specific embodiment or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the application, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of embedded magnet steel outer rotor iron core component provided by the embodiments of the present application；
Fig. 2 is the structural schematic diagram of embedded magnet steel outer rotor iron core component provided by the embodiments of the present application；
Fig. 3 is the another structural schematic diagram of embedded magnet steel outer rotor iron core component provided by the embodiments of the present application；
Fig. 4 is the another structural schematic diagram of embedded magnet steel outer rotor iron core component provided by the embodiments of the present application；
Fig. 5 is the another structural schematic diagram of embedded magnet steel outer rotor iron core component provided by the embodiments of the present application；
Fig. 6 is the structural schematic diagram of hub motor provided by the embodiments of the present application.
Appended drawing reference:
The embedded magnet steel outer rotor iron core component of 10-, 1- rotor core, the first magnet steel of 2-, the first retention bead of 201-, 3-
Second magnet steel, the second retention bead of 301-, 4- first are buckled, and 5- second is buckled, 20- stator core, 30- fixing axle, 40- wheel hub
Shell, 50- bearing, 100- hub motor.
Specific embodiment
It is clearly and completely described below in conjunction with technical solution of the attached drawing to the application, it is clear that described implementation
Example is some embodiments of the present application, instead of all the embodiments.
The component of the embodiment of the present application for usually describing and showing in attached drawing here can be with a variety of different configurations
To arrange and design.Therefore, the detailed description of the embodiments herein provided in the accompanying drawings is not intended to limit below and is wanted
The scope of the present application of protection is sought, but is merely representative of the selected embodiment of the application.
Based on the embodiment in the application, those of ordinary skill in the art are obtained without making creative work
The every other embodiment obtained, shall fall in the protection scope of this application.
In the description of the present application, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for describe the application and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present application, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in application.
The embedded magnet steel outer rotor iron core group according to some embodiments of the application is described referring to Fig. 1 to Fig. 6
Part 10 and hub motor 100.
Referring to figs. 1 to 5, embodiments herein provides a kind of embedded magnet steel outer rotor iron core component 10,
It include: rotor core 1 and multiple groups magnet steel；Wherein, rotor core 1 along the stator core 20 of hub motor 100 outer circumferential direction
Setting；Any one group of magnet steel includes the first magnet steel 2 and the second magnet steel 3, and the first magnet steel 2 and the second magnet steel 3 are along stator
The radial direction of iron core 20 is distributed；First magnet steel 2 is that V-type is segmented magnetic steel structure, and the second magnet steel 3 is U-shaped segmentation magnetic steel structure；Turn
Sub- iron core 1 is provided with multiple groups embedded groove；Any one group of embedded groove includes the first embedded groove and the second embedded groove, the first magnet steel 2
It is arranged in the first embedded groove, the second magnet steel 3 is arranged in the second embedded groove.
Embedded magnet steel outer rotor iron core component 10 provided by the present application, the first magnet steel 2 are stably placed at the first insertion
In slot, the second magnet steel 3 is stably placed in the second embedded groove, is easily installed and is operated, and is avoided using gluing fixation
Operation；First magnet steel 2 is that V-type is segmented magnetic steel structure, and the second magnet steel 3 is U-shaped segmentation magnetic steel structure, and the first magnet steel 2 and the
Two magnet steel 3 are along the radial distribution of stator, i.e. the first magnet steel 2 is located at outside, the second magnet steel 3 is located inside or the second magnet steel 3
It is located inside positioned at outside, the first magnet steel 2, V-type segmentation magnet steel and U-shaped segmentation magnet steel are combined together, angle between the two
Degree, the more flexible multiplicity of distance change between the two, and U-shaped magnet steel has carried out effective benefit to the poly- magnetic effect of V-type magnet steel
It repays, on the basis of increasing magnetic flux, convex grey subset changes greatly, and the reasonably optimizing magnetic circuit effect of d axis and q axis, can be effectively reduced
Flux density of the hub motor 100 under big torque, and then torque density is promoted, also improve overload capacity and response speed.
As it can be seen that the embedded magnet steel outer rotor iron core component 10 of the application, the magnet steel of outer rotor is installed simply, conveniently, and
It is combined using V-type magnet steel and U-shaped magnet steel, combines more flexible multiplicity, and U-shaped magnet steel imitates the poly- magnetic of V-type magnet steel
Effective compensation should be carried out, on the basis of increasing magnetic flux, convex grey subset changes greatly, and the reasonably optimizing magnetic circuit of d axis and q axis
Effect can be effectively reduced flux density of the hub motor 100 under big torque, and then promote torque density, also improve overload capacity
And response speed.
Wherein, optionally, multiple groups magnet steel is uniformly distributed along the circumferential direction of rotor core 1, and the gap between multiple groups magnet steel can
It is arranged according to actual needs, certainly, is not limited only to this.
Wherein, optionally, embedded groove is directly opened up on rotor core 1, certainly, is not limited only to this.
Wherein, optionally, two segmentation magnet steel of the adjacent two segmentation magnet steel and the second magnet steel 3 interval of the first magnet steel 2
Being formed by angle can be identical, can also be different, combines more diversified.
Wherein, optionally, rotor core 1 is cyclic structure, specially annular structure, and the first magnet steel and the second magnetic
Steel 3 along the radial distribution of the radius of annular structure, i.e. the first magnet steel close to outer ring or the second magnet steel 3 close to outer ring, when
So, it is not limited only to this.
In one embodiment of the application, it is preferable that as shown in Figures 1 to 5, the first magnet steel 2 and the second magnet steel 3
Opening is towards stator core 20；Or first magnet steel 2 and the second magnet steel 3 opening towards rotor core 1.
It in this embodiment, can be according to actual needs by the opening of the first magnet steel 2 and the second magnet steel 3 towards stator iron
Core 20 is arranged, or the opening of the first magnet steel 2 and the second magnet steel 3 is arranged towards rotor core 1, i.e. the first magnet steel 2
In outside, the second magnet steel 3 is located inside or the second magnet steel 3 is located at outside, and the first magnet steel 2 is located inside, combines mounting means
It is more changeable, to adapt to different needs.
In one embodiment of the application, it is preferable that the first magnet steel 2 is adapted or is interference fitted with the first embedded groove；
Second magnet steel 3 is adapted or is interference fitted with the second embedded groove.
In this embodiment, when the first magnet steel 2 is adapted with the first embedded groove, so that the first magnet steel 2 can be put into just
In first embedded groove, installation is simply, conveniently；When the first magnet steel 2 and the first embedded groove are interference fitted, enable the first magnet steel 2
It is enough fastened in the first limiting slot, the first magnet steel 2 is further prevented to fall off out of first limiting slot, it is safer and more reliable.Together
Reason, when the second magnet steel 3 is adapted with the second embedded groove, so that the second magnet steel 3 can be put into the second embedded groove just, installation letter
Singly, conveniently；When the second magnet steel 3 and the second embedded groove are interference fitted, the second magnet steel 3 is enabled to be fastened on the second limiting slot
It is interior, further prevent the second magnet steel 3 to fall off out of second limiting slot, it is safer and more reliable.
In one embodiment of the application, it is preferable that as shown in Fig. 2, the side wall of the first embedded groove offers the first limit
Position slot, the first magnet steel 2 are provided with the first retention bead 201 for protruding from its outer surface, and the first retention bead 201 is plugged in first
In limiting slot；The side wall of second embedded groove offers the second limiting slot, and the second magnet steel 3, which is provided with, protrudes from the second of its outer surface
Retention bead 301, the second retention bead 301 are plugged in the second limiting slot.
In this embodiment, the first retention bead 201 of the first magnet steel 2 can be plugged in the first limiting slot, further
It prevents the first magnet steel 2 from falling off out of first limiting slot, guarantees the reliability of hub motor 100 during the work time.Similarly, second
Second retention bead 301 of magnet steel 3 can be plugged in the second limiting slot, further prevent the second magnet steel 3 from the second limiting slot
It inside falls off, guarantees the reliability of hub motor 100 during the work time.
In one embodiment of the application, it is preferable that be provided with and lead between the adjacent segmentation magnet steel in the first magnet steel 2
Magnetic bridge；Magnetic conduction bridge is also equipped between adjacent segmentation magnet steel in second magnet steel 3.
In this embodiment, magnetic conduction bridge is set between adjacent sectional magnet steel, and magnetic conduction bridge is full in magnetic circuit to permanent magnet flux when unloaded
And state, permanent magnet flux are difficult to through magnetic conduction bridge；When load, under stator current effect, the degaussing of armature-reaction makes a part
Permanent magnet flux flows to the magnetic conduction bridge between adjacent sectional magnet steel, becomes leakage magnetic flux, makes to reduce by the magnetic flux density of air gap.
Wherein, optionally, the Nominal Width of magnetic conduction bridge can be arranged according to actual needs, adjust the width of magnetic conduction bridge
The saturation of magnetic path of magnetic conduction bridge is adjusted, so that the permanent magnet flux of regulatory pathway magnetic conduction bridge, regulates and controls the reduction degree of air gap flux density,
Reach the effect of high regime weak magnetic invariable power expansion speed, obtains specific surface installing type magneto and built-in whole magneto is wider
Wide constant power speed range meets electronic, hybrid vehicle driving and requires, realizes high power density, wide range speed control, fast sound
It answers, frequent starting and even running.
In one embodiment of the application, it is preferable that as shown in Figures 1 to 5, two be disposed adjacent in the first magnet steel 2
The angle formed between a segmentation magnet steel is 100 °~170 °；Shape between spaced two segmentations magnet steel in second magnet steel 3
At angle be 110 °~175 °.
In this embodiment, the first magnet steel 2 of internal layer can effectively increase the ability of weak-magnetic speed-regulating using obtuse angle structure, outside
Second magnet steel 3 of layer is used with upper angle, can play better magnet accumulating cap, improves the air gap flux density of hub motor 100.When
So, the first magnet steel 2 and second magnet steel 3 itself angulation are not limited only to this, can also be arranged according to actual needs.Wherein,
As shown in Figure 1, the first magnet steel 2 is different from the second itself angulation of magnet steel 3, as shown in figure 4, the first magnet steel 2 and the second magnetic
Itself angulation of steel 3 is identical.
In one embodiment of the application, it is preferable that as shown in Fig. 2, the circumferential edge of the first embedded groove is provided with
One buckle 4, the first buckle 4 is for be located in the first magnet steel 2；The circumferential edge of second embedded groove is provided with the second buckle 5, the
Two buckles 5 are for be located in the second magnet steel 3.
In this embodiment, the first buckle 4 is used to for the first magnet steel 2 being locked at securely in the first embedded groove, so that the
One magnet steel 2 is when outer rotor operates, it is not easy to be detached from from the first embedded groove, so that hub motor 100 is during the work time more
It is safe and reliable.Similarly, the second buckle 5 is for the second magnet steel 3 to be locked at securely in the second embedded groove, so that the second magnet steel 3
Outer rotor operating when, it is not easy to from the second embedded groove be detached from so that hub motor 100 it is safer during the work time, can
It leans on.
Wherein, optionally, it buckles and is buckled for duroplasts, is hardly damaged, and do not influence the magnetism of magnet steel.
In one embodiment of the application, it is preferable that as shown in Figures 1 to 5, multiple groups magnet steel is along rotor core 1
Circumferential uniformly arrangement；Multiple groups embedded groove is uniformly distributed along stator core 20；Multiple groups magnet steel is mutually corresponded with multiple groups embedded groove.
In this embodiment, multiple groups magnet steel is along the circumferential uniformly arrangement of rotor core 1, and multiple groups embedded groove is along stator iron
Core 20 is uniformly distributed, and multiple groups magnet steel is mutually corresponded with multiple groups embedded groove, so that the magnetic density phase of hub motor 100 everywhere
Closely, guarantee the even running of hub motor 100.
Embodiments herein also provides a kind of hub motor 100, including embedded magnetic described in any of the above-described embodiment
Steel outer rotor iron core component 10, thus, whole advantageous effects with the device, here, repeating no more.
In one embodiment of the application, it is preferable that as shown in fig. 6, hub motor 100 further includes fixing axle 30, determines
Sub- iron core 20 and hub shell 40；Wherein, fixing axle 30 is threaded through on hub shell 40, and fixing axle 30 and hub shell
Bearing 50 is provided between 40；Stator core 20 is sheathed in fixing axle 30；The inner wall of hub shell 40 is arranged in rotor core 1
On face, and rotor core 1 can follow hub shell 40 to rotate relative to fixed axis 30.
In this embodiment, rotor is arranged on hub shell 40, and rotor and hub shell 40 become an entirety, intensity
Height, meanwhile, rotor is able to drive hub shell 40 and rotates around fixing axle 30, and it is relatively fixed that hub shell 40 is also able to drive rotor
Son rotation, and then sense line is cut, it produces electricl energy, powers for electric car.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the application, rather than its limitations；To the greatest extent
Pipe is described in detail the application referring to foregoing embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, each embodiment technology of the application that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of embedded magnet steel outer rotor iron core component characterized by comprising rotor core and multiple groups magnet steel；
Wherein, the rotor core is circumferentially arranged along the outer of stator core of hub motor；Magnet steel described in any one group includes
First magnet steel and the second magnet steel, and first magnet steel and second magnet steel divide along the radial direction of the stator
Cloth；First magnet steel is that V-type is segmented magnetic steel structure, and second magnet steel is U-shaped segmentation magnetic steel structure；
The rotor core is provided with multiple groups embedded groove；Embedded groove described in any one group includes the first embedded groove and the second insertion
Slot, first magnet steel are arranged in first embedded groove, and second magnet steel is arranged in second embedded groove.
2. embedded magnet steel outer rotor iron core component according to claim 1, which is characterized in that first magnet steel and
The opening of second magnet steel is towards the stator core；Or the equal court of opening of first magnet steel and second magnet steel
To the rotor core.
3. embedded magnet steel outer rotor iron core component according to claim 1, which is characterized in that first magnet steel and institute
The first embedded groove is stated to be adapted or be interference fitted；Second magnet steel is adapted or is interference fitted with second embedded groove.
4. embedded magnet steel outer rotor iron core component according to claim 1, which is characterized in that first embedded groove
Side wall offers the first limiting slot, and first magnet steel is provided with the first retention bead for protruding from its outer surface, and described first
Retention bead is plugged in first limiting slot；The side wall of second embedded groove offers the second limiting slot, and described second
Magnet steel is provided with the second retention bead for protruding from its outer surface, and second retention bead is plugged in second limiting slot
It is interior.
5. embedded magnet steel outer rotor iron core component according to claim 1, which is characterized in that in first magnet steel
Magnetic conduction bridge is provided between adjacent segmentation magnet steel；Magnetic conduction is also equipped between adjacent segmentation magnet steel in second magnet steel
Bridge.
6. embedded magnet steel outer rotor iron core component according to any one of claim 1 to 5, which is characterized in that described
The angle formed between two segmentation magnet steel being disposed adjacent in first magnet steel is 100 °~170 °；It is spaced in second magnet steel
The angle formed between two segmentation magnet steel being arranged is 110 °~175 °.
7. embedded magnet steel outer rotor iron core component according to any one of claim 1 to 5, which is characterized in that described
The circumferential edge of first embedded groove is provided with the first buckle, and first buckle is for be located in first magnet steel；It is described
The circumferential edge of second embedded groove is provided with the second buckle, and second buckle is for be located in second magnet steel.
8. embedded magnet steel outer rotor iron core component according to any one of claim 1 to 5, which is characterized in that multiple groups
The magnet steel is uniformly arranged along the circumferential of the rotor core；Embedded groove described in multiple groups uniformly divides along the stator core
Cloth；Magnet steel described in multiple groups is mutually corresponded with embedded groove described in multiple groups.
9. a kind of hub motor, which is characterized in that including embedded magnet steel outer rotor described in any item of the claim 1 to 8
Core assembly.
10. hub motor according to claim 9, which is characterized in that further include outside stator core, fixing axle and wheel hub
Shell；Wherein, the fixing axle is threaded through on the hub shell, and is provided with axis between the fixing axle and the hub shell
It holds；The stator core is sheathed in the fixing axle；The rotor core is arranged on the inner wall of the hub shell, and
The rotor core can follow the hub shell to rotate relative to the fixing axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811629837.7A CN109450138A (en) | 2018-12-28 | 2018-12-28 | Embedded magnet steel outer rotor iron core component and hub motor |
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| CN201811629837.7A CN109450138A (en) | 2018-12-28 | 2018-12-28 | Embedded magnet steel outer rotor iron core component and hub motor |
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| CN109450138A true CN109450138A (en) | 2019-03-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11641139B2 (en) * | 2019-10-08 | 2023-05-02 | Neapco Intellectual Property Holdings, Llc | Lubricant supported electric motor |
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