CN208353100U - The rotor structure of Halbach motor - Google Patents
The rotor structure of Halbach motor Download PDFInfo
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- CN208353100U CN208353100U CN201821054095.5U CN201821054095U CN208353100U CN 208353100 U CN208353100 U CN 208353100U CN 201821054095 U CN201821054095 U CN 201821054095U CN 208353100 U CN208353100 U CN 208353100U
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Abstract
The utility model provides a kind of rotor structure of Halbach motor, it includes the pole N magnet steel, the pole S magnet steel and shaft, the pole N magnet steel includes the very big magnet steel of N and the minimum magnet steel of N, the pole S magnet steel includes the very big magnet steel of S and the minimum magnet steel of S, and specifically limit: in the minimum magnet steel of N, its magnetic line of force it is parallel with the radial section diagonal line of the minimum magnet steel of N or with acute angle, in the minimum magnet steel of S, its magnetic line of force it is parallel with the radial section diagonal line of the minimum magnet steel of S or with acute angle.The utility model has the advantages that improve as follows: constituting the magnet structure simple shape of magnetic group, difficulty of processing is low；Simple to operate, motor high production efficiency, raising homogeneity of product are installed；The structure of magnetic group limits, and can eliminate accumulated error when assembled, improves motor performance；Permanent magnet sectional area is bigger, permanent magnet inside magnetic circuit is longer, to improve the anti-demagnetization capability of motor.
Description
Technical field
The utility model relates to motor device technical fields, and more specifically, in particular to a kind of Halbach motor turns
Minor structure.
Background technique
Halbach motor is a kind of motor using Halbach array magnet structure, Halbach array magnet structure
It is the magnet structure of approximate ideal in engineering, the design object of the structure is to generate strongest magnetic field with minimal amount of magnet.
Halbach array magnet structure utilizes special magnet unit spread pattern, being capable of enhancing magnet unit one direction
On field strength.
Halbach rotor structure is applied to permanent magnetism class motor, can construct special motor-field circuit, can make
Motor removes rotor magnetic conduction yoke structure, and increases air gap flux density, optimization air gap waveform, effectively improves motor properties, subtracts
Small machine weight reduces product cost.
In the prior art, traditional Halbach rotor is made of the pole N magnet steel, the pole S magnet steel and shaft, the pole N magnet steel and
The pole S magnet steel uses plate armature, and the pole N magnet steel or the pole S magnet steel be attached in shaft, patch (pole N magnet steel, the pole S magnet steel) with turn
It is contacted between axis for line, since patch difficulty is larger, usually carries out patch operation using artificial, artificial patch operation will cause
The error accumulation of patch.Since Halbach rotor structure is complex, lead to it there are craftsmanships poor, design is not flexible etc. to ask
Topic, the also exactly presence of these problems, so that Halbach rotor cannot achieve the property of mass production or even small lot production
It can be also poor.
In conclusion leading to Halbach rotor structure items advantage since unreasonable structural design and processing technology are cumbersome
It can not be applied in actual production.
Utility model content
The purpose of this utility model is to provide a kind of reasonable in design, lower Halbach motors of manufacture difficulty.
To achieve the goals above, the utility model provides the following technical solutions:
A kind of rotor structure of Halbach motor includes the pole N magnet steel, the pole S magnet steel and shaft.In the utility model
In, the shaft is circular shaft structure；The pole N magnet steel includes the very big magnet steel of N and the minimum magnet steel of N, the very big magnet steel of N
Radial section is isosceles trapezoid, and the top surface of the very big magnet steel of N is the first binding face, and the very big magnet steel of N passes through described first
Binding face pastes in the shaft, and the radial section of the minimum magnet steel of N is rectangle, in the minimum magnet steel of the N, its magnetic
The line of force is parallel with the radial section diagonal line of the minimum magnet steel of the N or has acute angle, and the one side of the minimum magnet steel of N is
Second binding face, the minimum magnet steel of N are pasted in the shaft by second binding face, and the one of the minimum magnet steel of N
Edge surface is connect with the edge surface of the very big magnet steel of the N, and the two sides of the very big magnet steel of N are each provided with one of identical quantity
Or the minimum magnet steel of multiple N and it is formed with the pole N magnetic group；The pole S magnet steel includes the very big magnet steel of S and the minimum magnet steel of S, institute
The radial section for stating the very big magnet steel of S is isosceles trapezoid, and the top surface of the very big magnet steel of S is third binding face, the very big magnet steel of S
It is pasted in the shaft by the third binding face, the radial section of the minimum magnet steel of S is rectangle, in the pole S
In small magnet steel, its magnetic line of force is parallel with the radial section diagonal line of the minimum magnet steel of the S or has acute angle, and the S is minimum
The one side of magnet steel is the 4th binding face, and the minimum magnet steel of S is pasted in the shaft by the 4th binding face, described
A side face of the minimum magnet steel of S is connect with the edge surface of the very big magnet steel of the S, and the two sides of the very big magnet steel of S are each provided with
The minimum magnet steel of the one or more S of identical quantity is simultaneously formed with the pole S magnetic group；The pole the N magnetic group is provided with multiple, the S
Pole magnetic group is provided with multiple, and the pole the N magnetic group and the pole the S magnetic group are interspersed to be arranged and form tubular structure around the shaft
Rotor magnetic group.
Preferably, backwards in the very big magnet steel of the N, the minimum magnet steel of the N, the very big magnet steel of the S, the minimum magnet steel of the S
Extra play is provided on the side of the shaft, the lateral surface of the extra play is smooth surface, the inside of the extra play
Face and the very big magnet steel of the N, the minimum magnet steel of the N, the very big magnet steel of the S, the S are minimum, and magnet steel is connect；The rotor magnetic group
Lateral surface be provided with the extra play and form round surface structure.
Preferably, the extra play is set to the very big magnet steel of the N, the minimum magnet steel of the N, the very big magnet steel of the S, described
On the minimum magnet steel of S and form integral structure.
By said structure design, the utility model has the advantages that improve as follows: constituting the pole N magnetic group and the pole S magnetic group
Magnet structure simple shape, difficulty of processing are low；The permanent magnet of the composition pole N magnetic group and the pole S magnetic group is in assembling, installation
It is simple to operate, and by the preassembled pole N magnetic group and the pole S magnetic group, permanent magnet installation accuracy is improved, Halbach is improved
Motor high production efficiency improves homogeneity of product, thus the mass production of reality Halbach motor；The pole N magnetic group and the pole S
The structural failure of magnetic group is small, and therefore, in shaft over-assemble, generated circumferential direction accumulated error is also smaller.In the pole N magnetic group or
It is in the magnetic group of the pole S, bottom surface (for being connected with the rotating shaft face) is made of three angled planes, the angle of three planes
Position is consistent with shaft outer surface.In this way, structure limit is carried out to the assembling of the pole the N magnetic group either pole S magnetic group by three planes,
It can eliminate accumulated error, significantly optimize the air gap magnetic density waveform sine of Halbach structure motor, improve motor
Energy.In the present invention, N, S magnetic group being made of Halbach structure are compared with common magnetic path structure, and magnetic circuit is out of permanent magnet
The distance that portion is flowed through is longer, and permanent magnet sectional area is bigger, permanent magnet inside magnetic circuit is longer, to improve the anti-demagnetization energy of motor
Power.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide a further understanding of the present invention, this is practical
Novel illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.
Wherein:
Fig. 1 is the cross section structure schematic diagram in an embodiment of the present invention in Halbach rotor perpendicular to shaft；
Fig. 2 be in 1 along the sectional view of A-A；
Fig. 3 is the simplified schematic diagram that the utility model is distributed based on magnet steel internal magnetic field lines each in Fig. 1 structure；
Fig. 4 is the structural schematic diagram of the pole N magnetic group in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of the pole S magnetic group in an embodiment of the present invention；
Fig. 6 is the structural schematic diagram of rotor magnetic group assembly tool in an embodiment of the present invention；
Fig. 7 is the cross-sectional view in Fig. 6 along B-B；
Description of symbols:
The very big magnet steel 2 of shaft 1, N, the minimum magnet steel 3 of N, the very big magnet steel 4 of S, the minimum magnet steel 5 of S, pedestal 6, clamp stud 7, on
Lid 8.
Specific embodiment
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.Each example passes through the utility model
The mode of explanation provide rather than limit the utility model.In fact, those skilled in the art will be clear that, this reality is not being departed from
In the case where with novel range or spirit, it can modify in the present invention and modification.For example, being illustrated or described as one
The feature of a part of a embodiment can be used for another embodiment, to generate another embodiment.Thus, it may be desirable to
The utility model includes the such modifications and variations being included into the range of the following claims and their equivalents.
In the description of the present invention, term " longitudinal direction ", " transverse direction ", "upper", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as "vertical", "horizontal", "top", "bottom" is to be based on the orientation or positional relationship shown in the drawings,
It is merely for convenience of description the utility model rather than requires the utility model that must be constructed and operated in a specific orientation, therefore
It should not be understood as limiting the present invention.Term used in the utility model " connected ", " connection " shall be understood in a broad sense,
For example, it may be being fixedly connected, may be a detachable connection；It can be directly connected, it can also be indirect by intermediate member
It is connected, for the ordinary skill in the art, can understands the concrete meaning of above-mentioned term as the case may be.
Fig. 1 is please referred to Fig. 7, wherein Fig. 1 be in an embodiment of the present invention in Halbach rotor perpendicular to shaft
Cross section structure schematic diagram；Fig. 2 be in 1 along the sectional view of A-A；Fig. 3 is that the utility model is based on each magnet steel in Fig. 1 structure
The simplified schematic diagram of internal magnetic field lines distribution；Fig. 4 is the structural schematic diagram of the pole N magnetic group in an embodiment of the present invention；Fig. 5 is this
The structural schematic diagram of the pole S magnetic group in one embodiment of utility model；Fig. 6 is that rotor magnetic group assembles work in an embodiment of the present invention
The structural schematic diagram of dress；Fig. 7 is the cross-sectional view in Fig. 6 along B-B.
The technical problem to be solved by the utility model is to provide a kind of novel Halbach rotor structure and its processing sides
Method is designed by its structure, can solve existing Halbach rotor can not mass production the problem of.Meanwhile this is practical new
Type can also largely solve Halbach rotor structure because the performance caused by technological problems is poor, consistency difference etc. is asked
Topic.
Halbach rotor provided by the utility model is mainly made of permanent magnet and shaft, is provided in the utility model
Halbach method for manufacturing rotor in, also use permanent magnet forming frock and rotor forming frock.
Specifically, in a kind of rotor structure of Halbach motor provided by the utility model comprising have the pole N magnet steel,
The pole S magnet steel and shaft 1, shaft 1 are circular shaft structure.
The utility model has mainly carried out structure optimization to the pole N magnet steel, the pole S magnet steel, and specific design is as follows: the pole N magnet steel
It include the very big magnet steel 2 of N and the minimum magnet steel 3 of N, the radial section of the very big magnet steel 2 of N is isosceles trapezoid, the top of the very big magnet steel 2 of N
Face is the first binding face, and the very big magnet steel 2 of N is sticked in shaft 1 by the first binding face, the central axes of the very big magnet steel 2 of N and shaft
1 axis is vertical, and the radial section of the minimum magnet steel 3 of N is rectangle, in the minimum magnet steel 3 of N, its magnetic line of force and the minimum magnet steel 3 of N
Radial section diagonal line it is parallel, the central axes of the minimum magnet steel 3 of N are vertical with the axis of shaft 1, and the one side of the minimum magnet steel 3 of N is
Second binding face, N is minimum, and magnet steel 3 is sticked in shaft 1 by the second binding face, and a side face of the minimum magnet steel 3 of N and N are very big
The edge surface of magnet steel 2 connects, and the two sides of the very big magnet steel 2 of N are each provided with the minimum magnet steel 3 of a N and are formed with the pole N magnetic group.
The pole S magnet steel includes the very big magnet steel 4 of S and the minimum magnet steel 5 of S, and the radial section of the very big magnet steel 4 of S is isosceles trapezoid,
The top surface of the very big magnet steel 4 of S is third binding face, and the very big magnet steel 4 of S is sticked in shaft 1 by third binding face, the very big magnet steel 4 of S
Central axes it is vertical with the axis of shaft 1, the radial section of the minimum magnet steel 5 of S is rectangle, in the minimum magnet steel 5 of S, its magnetic force
Line is parallel with the radial section diagonal line of the minimum magnet steel 5 of S, and the central axes of the minimum magnet steel 5 of S are vertical with the axis of shaft 1, and S is minimum
The one side of magnet steel 5 is the 4th binding face, and S is minimum, and magnet steel 5 is sticked in shaft 1 by the 4th binding face, the minimum magnet steel 5 of S
A side face is connect with the edge surface of the very big magnet steel 4 of S, and the two sides of the very big magnet steel 4 of S are each provided with the minimum magnet steel 5 of a S and shape
At there is the pole S magnetic group.
The pole N magnetic group is provided with multiple, and the pole S magnetic group is provided with multiple, and the pole N magnetic group and the pole S magnetic group be interspersed to be arranged and around turning
The rotor magnetic group of the formation tubular structure of axis 1.In the present invention, for the defined below of magnet steel packet size: according to motor
It can require, determine size, auxiliary magnetic circuit magnet steel (the minimum magnetic of N, S of main magnetic circuit magnet steel in Halbach magnet steel group (the very big magnet steel of N, S)
Steel) logarithm and size.
In the present invention, for the defined below of magnet steel group shape: being required and size design magnetic according to motor performance
Steel group shape and its each part magnet steel shape.
In the present invention, for the defined below of magnet steel group assembling: rotor magnetic group assembly tool is utilized, to same magnetic pole
Magnet steel group in magnet steel installed.
In the present invention, to the defined below of Halbach motor general assembly: by magnet steel group Surface Mount, (structure is chiefly used in
Surface-mounted rotor) in shaft to form rotor, then carry out motor general assembly.
Inside motor, it is essentially all cylindrical space structure that coil windings, which are formed by rotor installation space, therefore,
The utility model be based on said structure design, the very big magnet steel 2 of N, the minimum magnet steel 3 of N, the very big magnet steel 4 of S, the minimum magnet steel 5 of S backwards
Extra play is also provided on the side of shaft 1, the lateral surface of extra play is smooth surface, the medial surface and the very big magnetic of N of extra play
The minimum magnet steel 5 of the minimum magnet steel 3 of steel 2, N, the very big magnet steel 4 of S, S connects；The lateral surface of rotor magnetic group is provided with extra play and forms circle
Curved-surface structure.
It is designed by the structure of designer's limited times, extra play is respectively provided to the very big magnet steel 2 of N, the minimum magnet steel 3 of N, S
On very big magnet steel 4, the minimum magnet steel 5 of S, by the very big magnet steel 2 of N, the minimum magnet steel 3 of N, the very big magnet steel 4 of S, S, minimum magnet steel 5 is successively assembled
After the completion, the lateral surface for being formed by rotor magnetic group is round surface structure, such rotor magnetic group and motor Inside coil winding institute
Possessed the air gap spacing is consistent between the rotor installation space of formation.
In the present invention, extra play has multiple structural forms, different one illustrates herein.
Limit herein: extra play be set to the very big magnet steel 2 of N, the minimum magnet steel 3 of N, the very big magnet steel 4 of S, on the minimum magnet steel 5 of S simultaneously
Form integral structure.
In the present invention, bonding way, the tool locating of the pole N magnetic group and the pole S magnetic group are identical, it is ensured that all
Magnetic pole group outer dimension is consistent, while facilitating installation, improves rotor permanent magnet uniformity, reduces motor gas-gap magnetic field harmonics,
Reduce complete machine torque fluctuation.
The installation process of the utility model is as follows: the minimum magnet steel 3 of the inverted N of two panels is used glue with the very big magnet steel 2 of a piece of N
Water bonding；The minimum magnet steel 5 of the inverted S of two panels is Nian Jie using glue with the very big magnet steel 4 of a piece of S, and Surface Mount is turning in sequence later
On the outer surface of axis 1.
It is to be noted that in the present invention, each components are assembled according to above-mentioned technique, when assembling, should be infused
It anticipates its installation site, reduces assembly error.
It should be understood that in the present invention, used " big ", " small " magnet steel refers to the circumferential size of permanent magnet
Size, the circumferential size of big magnet steel is greater than the circumferential size of small magnet steel, ratio is generally 60% in a magnetic group~
90% (being determined according to specific design)；" small " magnet steel refers to the permanent magnet for changing magnetic circuit, occurs in pairs in " big " magnet steel two sides, root
Logarithm according to design requirement " small " magnet steel can suitably increase, and toatl proportion is generally no greater than 40% in a magnetic group.
The utility model additionally provide it is a kind of for manufacturing the manufacturing method of the rotor structure of above-mentioned Halbach motor,
In the manufacturing method comprising:
Step 1: by cutting prepare the very big magnet steel 2 of N that radial section is similar isosceles trapezoid (bottom edge is circular arc) and
The very big magnet steel 4 of S；
Step 2: preparing the minimum magnet steel 3 of N and the minimum magnet steel 5 of S that radial section is rectangle by cutting；
Step 3: being magnetized to the very big magnet steel of N 2 and being formed in the very big magnet steel 2 of N perpendicular to its top surface or bottom surface
The magnetic line of force, magnetized to the very big magnet steel of S 4 and be formed with the magnetic force perpendicular to its top surface or bottom surface in the very big magnet steel 4 of S
Line, magnetized to the minimum magnet steel of N 3 and in the minimum magnet steel 3 of N formed be parallel to its radial section diagonal line or with its radial direction
Section diagonal line has the magnetic line of force of acute angle, is magnetized and is formed in the minimum magnet steel 5 of S parallel to the minimum magnet steel of S 5
In its radial section diagonal line or with its radial section diagonal line have acute angle the magnetic line of force；
Step 4: setting up the minimum magnet steel 3 of N separately edge surface on the two sides face of the very big magnet steel 2 of N and with the very big magnet steel 2 of N
Seamless paste merges to form the pole a N magnetic group, the magnetic line of force and the very big magnet steel 2 of N in the same pole the N magnetic group, in the minimum magnet steel 3 of N
Interior magnetic line of force structure at an acute angle, by the minimum magnet steel 5 of S set up separately on the two sides face of the very big magnet steel 4 of S and with the very big magnet steel 4 of S
Edge surface seamless paste merges to form the pole a S magnetic group, and the magnetic line of force and S in the same pole the S magnetic group, in the minimum magnet steel 5 of S are very big
Magnetic line of force structure at an acute angle in magnet steel 4；
Step 5: shaft 1 is arranged and the pole N magnetic group and the pole S magnetic group is arranged in the lateral surface of shaft 1, wherein the pole N magnetic group
And the interspersed setting of the pole S magnetic group.
In above-mentioned step three, four, small magnet steel magnetizing direction can be changed according to motor overall structure, in this reality
With a pair of small magnet steel in a novel embodiment, is provided in a magnetic group, magnetizing direction is to be parallel to inside small magnet steel
Its cross section diagonal；In the another embodiment of the utility model, two pairs or more small magnetic are provided in a magnetic group
When steel, needs magnetize according to motor specific size.
In step 4, the utility model also uses magnetic group assembly tool, wherein magnetic group assembly tool has cross section
For the limiting slot of isosceles trapezoid.
In step 5, the utility model also uses rotor magnetic group assembly tool, wherein rotor magnetic group assembly tool tool
There is limit hole, the cross-sectional shape of limit hole is regular polygon or circle.
Permanent magnet is cut into design shape by the utility model, and is magnetized according to fixed-direction；Utilize the body formed work of permanent magnetism
Dress will constitute the permanent magnet bonding forming of the pole N magnetic group and the pole S magnetic group；The pole N magnetic group and the pole S magnetic group are spliced simultaneously by rule
It is installed in shaft 1, is fixed using rotor magnetic group assembly tool, later bonding solidification.
Please refer to Fig. 6 and Fig. 7, wherein Fig. 6 is that the structure of rotor magnetic group assembly tool in an embodiment of the present invention is shown
It is intended to；Fig. 7 is the cross-sectional view in Fig. 6 along B-B.
Rotor magnetic group assembly tool provided by the utility model includes pedestal 6, in being provided with limiting slot on pedestal 6, in
The upside of pedestal 6 is provided with upper cover 8 by clamp stud 7；The width of pedestal 6 and the width of upper cover 8 and the very big magnet steel of N or S
Greatly magnet steel is of same size.
In the present invention, which is the Halbach magnetic for installing above-mentioned step 4
Steel group (including the pole N group and the pole S group), the size of each Halbach magnet steel group is limited by tooling, to improve rotor magnetic steel
The consistency of mounting structure.Since rotor magnetic group structure precision is improved, the air gap waveform of motor can be made smoother.The work
Dress is made of two parts (pedestal and upper cover), i.e. magnet steel composing type tooling.The effect of the rotor magnetic group assembly tool are as follows: fixed
Halbach magnet steel group limits the relative position between magnet steel and limits to magnet steel assembling.
Rotor magnetic group assembly tool is flat long metal, and centre has through-hole (by sealing in upper cover setting to pedestal by upper cover
It closes limiting slot to be formed).In use, the magnet steel of same magnetic pole is installed on inside tooling through-hole according to the sequence of above-mentioned steps four, pacify
The contact surface cementing (anaerobic adhesive) of magnet steel and magnet steel before filling, and guarantee that magnet steel surface must flush；After glue curing, magnetic is used
Steel group extrudes tooling and extrudes the integral Halbach magnet steel group of internal bond, removes glue more than tooling inside, completes one
The installation of Halbach magnet steel group.
For the utility model after carrying out above structure innovation, advantage is as follows:
1, the magnet structure simple shape of the pole N magnetic group and the pole S magnetic group is constituted, difficulty of processing is low, is suitable for big absolutely
Part durface mounted permanent magnet body, such as ferrite, alnico, rare earth material, the structure are applied widely；
2, for the permanent magnet of the composition pole N magnetic group and the pole S magnetic group in assembling, installation is simple to operate, due to existing
Permanent magnet installation complexity is therefore the important restriction factor of the unsuitable volume production of Halbach structure passes through the utility model in technology
Structure design, be capable of the mass production of reality Halbach motor, and the high production efficiency of Halbach motor, product one
Cause property is good；
3, the structural failure of the pole N magnetic group and the pole S magnetic group is small, therefore, the generated circumferential accumulation in 1 over-assemble of shaft
Error is also smaller.In the pole N magnetic the group either pole S magnetic group, bottom surface (face for connecting with shaft 1) is angled by three
Plane is constituted, in this way, structure limit is carried out to the assembling of the pole the N magnetic group either pole S magnetic group by three planes, as long as control rotor
Excircle dimension precision can guarantee the center line of the center line and 1 joint face of shaft of each pole the N magnetic group either pole S magnetic group
It is overlapped, this location-independent structure, hardly generates accumulated error in actual production manufacture.Also therefore, this is practical new
Type can eliminate accumulated error, significantly optimize the air gap magnetic density waveform of Halbach structure motor, improve motor performance；
4, compared with ordinary construction motor, Halbach motor provided by the utility model can accomplish permanent magnet sectional area
Magnetic circuit is longer inside bigger, permanent magnet, so that anti-demagnetization capability is strong while promoting outside motor characteristic.
5, the utility model weakens the influence of permanent magnet installation accuracy by preassembled Halbach magnet steel group；Together
When, using the shape of special permanent magnet, distribution, reduce permanent magnet processing and the influence for the precision that magnetizes, can guarantee Halbach
Under the premise of rotor structure performance advantage, the processing of mass product is realized.
The above is only the preferred embodiments of the utility model, are not intended to limit the utility model, for the skill of this field
For art personnel, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model, made
Any modification, equivalent substitution, improvement and etc., should be included within the scope of protection of this utility model.
Claims (3)
1. a kind of rotor structure of Halbach motor includes the pole N magnet steel, the pole S magnet steel and shaft (1), which is characterized in that
The shaft is circular shaft structure；
The pole N magnet steel includes the very big magnet steel of N (2) and the minimum magnet steel of N (3), and the radial section of the very big magnet steel of N is etc.
Waist is trapezoidal, and the top surface of the very big magnet steel of N is the first binding face, and the very big magnet steel of N is pasted by first binding face
In the shaft, the radial section of the minimum magnet steel of N is rectangle, in the minimum magnet steel of the N, its magnetic line of force and the N
The radial section diagonal line of minimum magnet steel is parallel or has acute angle, and the one side of the minimum magnet steel of N is the second binding face,
The minimum magnet steel of N is pasted in the shaft by second binding face, a side face of the minimum magnet steel of N with it is described
The edge surface of the very big magnet steel of N connects, and the two sides of the very big magnet steel of N are each provided with the one or more N of identical quantity
Minimum magnet steel is simultaneously formed with the pole N magnetic group；
The pole S magnet steel includes the very big magnet steel of S (4) and the minimum magnet steel of S (5), and the radial section of the very big magnet steel of S is etc.
Waist is trapezoidal, and the top surface of the very big magnet steel of S is third binding face, and the very big magnet steel of S is pasted by the third binding face
In the shaft, the radial section of the minimum magnet steel of S is rectangle, in the minimum magnet steel of the S, its magnetic line of force and the S
The radial section diagonal line of minimum magnet steel is parallel or has acute angle, and the one side of the minimum magnet steel of S is the 4th binding face,
The minimum magnet steel of S is pasted in the shaft by the 4th binding face, a side face of the minimum magnet steel of S with it is described
The edge surface of the very big magnet steel of S connects, and the two sides of the very big magnet steel of S are each provided with the one or more S of identical quantity
Minimum magnet steel is simultaneously formed with the pole S magnetic group；
The pole the N magnetic group is provided with multiple, and the pole the S magnetic group is provided with multiple, and the pole the N magnetic group and the pole the S magnetic group are interspersed
It is arranged and surround the rotor magnetic group that the shaft forms tubular structure.
2. the rotor structure of Halbach motor according to claim 1, which is characterized in that
In the very big magnet steel of the N, the minimum magnet steel of the N, the very big magnet steel of the S, the minimum magnet steel of the S backwards to the side of the shaft
Extra play is provided on face, the lateral surface of the extra play is smooth surface, and the medial surface of the extra play and the N are very big
The minimum magnet steel connection of magnet steel, the minimum magnet steel of the N, the very big magnet steel of the S, the S；
The lateral surface of the rotor magnetic group is provided with the extra play and forms round surface structure.
3. the rotor structure of Halbach motor according to claim 2, which is characterized in that
The extra play be set to the very big magnet steel of the N, the minimum magnet steel of the N, the very big magnet steel of the S, on the minimum magnet steel of the S
And form integral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821054095.5U CN208353100U (en) | 2018-07-04 | 2018-07-04 | The rotor structure of Halbach motor |
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| CN201821054095.5U CN208353100U (en) | 2018-07-04 | 2018-07-04 | The rotor structure of Halbach motor |
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| CN208353100U true CN208353100U (en) | 2019-01-08 |
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| CN201821054095.5U Withdrawn - After Issue CN208353100U (en) | 2018-07-04 | 2018-07-04 | The rotor structure of Halbach motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736608A (en) * | 2018-07-04 | 2018-11-02 | 中国电子科技集团公司第二十研究所 | The rotor structure and its manufacturing method of Halbach motors |
| CN112383163A (en) * | 2020-11-23 | 2021-02-19 | 兰州交通大学 | Independent wheel traction hub motor for railway vehicle |
-
2018
- 2018-07-04 CN CN201821054095.5U patent/CN208353100U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736608A (en) * | 2018-07-04 | 2018-11-02 | 中国电子科技集团公司第二十研究所 | The rotor structure and its manufacturing method of Halbach motors |
| CN108736608B (en) * | 2018-07-04 | 2024-04-12 | 中国电子科技集团公司第二十一研究所 | Rotor structure of Halbach motor and manufacturing method thereof |
| CN112383163A (en) * | 2020-11-23 | 2021-02-19 | 兰州交通大学 | Independent wheel traction hub motor for railway vehicle |
| CN112383163B (en) * | 2020-11-23 | 2022-03-08 | 兰州交通大学 | Independent wheel traction hub motor for railway vehicle |
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| AV01 | Patent right actively abandoned |