CN105957707B - A kind of manufacturing method of Halbach magnetic array and its used magnetizer - Google Patents
A kind of manufacturing method of Halbach magnetic array and its used magnetizer Download PDFInfo
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- CN105957707B CN105957707B CN201610369991.XA CN201610369991A CN105957707B CN 105957707 B CN105957707 B CN 105957707B CN 201610369991 A CN201610369991 A CN 201610369991A CN 105957707 B CN105957707 B CN 105957707B
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- array
- halbach
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F13/00—Apparatus or processes for magnetising or demagnetising
- H01F13/003—Methods and devices for magnetising permanent magnets
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Non-Mechanical Conveyors (AREA)
Abstract
The invention discloses a kind of manufacturing method of Halbach magnetic array and its used magnetizers.The magnet steel that this method makes the fixed substrate for constituting Halbach magnetic array first and do not magnetize；Then the magnet steel for setting quantity is fixed to fixed substrate and constitutes the Halbach magnetic steel array that m row n is arranged；Finally magnetize to all magnet steel on magnetic steel array.The magnetizer includes：Control switch, constant-current charge controlling circuit of voltage regulation, step-up transformer, rectification circuit, energy storage capacitor, high power switch, cable and magnetizing coil.Using the manufacturing method of technical solution of the present invention, it first is arranged in expected magnetic steel array according to Halbach array before magnet steel is unmagnetized, and gluing or securely fixed as required with other methods, because this is easily achieved without magnetic action；Halbach magnetic array can be produced to magnetize with magnetizer newly developed in the present invention again, this not only simplifies techniques, and reduce and control, clamp fixture, and ensure that the cleaning of production process, reduce sundries, dust is infiltrated, can also greatly improve quality, reduce cost.
Description
Technical field
The present invention relates to technical field of magnetic materials, and in particular to a kind of manufacturing method of Halbach magnetic array and its institute
The magnetizer used.
Background technique
Traditional moving coil earphone unit magnetic field is that magnetic force is led voice coil using washer, and plane diaphragm unit on the market
It is also to use the method, but depend merely on washer guiding, since leakage field can not effectively play magneticaction.In order to effectively play magnetic
, using Halbach magnetic array, (Halbach array Halbach Array is a kind of magnet structure, is the approximation in engineering
Ideal structure, target are to generate strongest magnetic field with minimal amount of magnet.1979, American scholar Klaus Halbach did electricity
When sub- Acceleration study, it was found that this special permanent magnetism iron construction, and this structure of gradual perfection ultimately form so-called
" Halbach " magnet.) design, strongest magnetic field can be generated with minimal amount of magnet, can also reduce due to Magnetic field inhomogeneity and
Caused by be distorted.
Although halbach magnets array uses field more, the manufacturing method of existing Halbach magnetic array
In, it is all to be assembled again after one block of small magnet steel of block is magnetized.Since the magnet of Halbach array can produce mutually in assembling
The active force of repulsion, thus need special designing to carry out fixed magnet and simplify processing procedure.
Currently, provide four kinds of schemes carry out fixed magnet, in scheme used metal be required to non-magnetic stainless steel or
Non-magnetic metal.
(1) the stronger glue of viscosity is used, fixes magnet one by one.Although this mode is at first glance very intuitive, for
It is that, because glue usually requires curing time, fixture must be leaned on to fix than less favorable, be needed in volume production this period on processing procedure
Many fixtures are made, in addition the time of dismounting, more uneconomical.
(2) metal meal gold part is made into font hook, the plastic cement between magnet and magnet asThe fixed position of hook
It sets, first swings in the magnet of upward power, then willFont hook, plastic cement between magnet and magnet asWhat hook was fixed
Position first swings in the magnet of upward power, then willType hook is swung in, and is madeType hook is blocked by lid plastic cement positioning column, then will be to
The magnet exerted oneself swings in fixed hook, makesType hook can not move, and fixThe magnet of font hook and upward power.
(3) magnet that upward power is lived using penetration type hook passes through penetration type using metalwork in penetration type hook bottom
Hook enables penetration type hook to be effectively fixed up the magnet of power, can up reach at this time on metalwork with power down
At balance.
(4) by sheet metal component be made into concaveconvex shape be used to it is fixed up or toward the magnet exerted oneself, can equally allow up with it is past
Under power reach balance on sheet metal component, and the number of packages of metal plate reduce, but required accuracy is because of sheet metal component length
Relationship will be relatively high.Magnet steel minimum dimension 0.2mm × 0.2mm × 0.2mm of present magnet steel factory production adds the thickness of electroplated layer
Degree is 0.26mm, and the small magnet that magnetized of such small size is glued with glue, and requires its N, and the pole S and transverse direction are fixed as required, this
It is difficult in technique.
In conclusion the manufacturing method of existing halbach magnets array is complex, manufacturing cost it is higher and
Compare in technique and be difficult to control, it is therefore desirable to improve.
Summary of the invention
The first technical problem to be solved by the present invention is to provide a kind of manufacturing method of Halbach magnetic array, solves existing
There is manufacturing method complicated, manufacturing cost is higher and is difficult to the problem of controlling comparing in technique.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
A kind of manufacturing method of Halbach magnetic array, includes the following steps：
S1), magnet steel of the production for constituting the fixed substrate of Halbach magnetic array and not magnetizing；Fixed substrate usually has
There is magnetic property, for example may include one layer of silicon steel plate；
S2), the magnet steel for setting quantity is fixed to fixed substrate and constitutes the Halbach magnetic steel array that m row n is arranged；
S3), magnetize to all magnet steel on the magnetic steel array, form Halbach magnetic array.
It in preferred technical solution, magnetizes described in step S3, is that branch magnetizes, i.e., every time to one in magnetic steel array
Row sufficiently magnetize to saturation, to complete magnetizing for entire Halbach magnetic array line by line.
The second technical problem to be solved by the present invention is accordingly to provide a kind of manufacturing method institute of Halbach magnetic array
The magnetizer used solves the problem of that the complicated manufacturing cost of existing manufacturing method is higher and compares in technique to be difficult to control.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
Magnetizer used in a kind of manufacturing method of Halbach magnetic array, the manufacturing method is as previously mentioned, it is special
Sign is that the magnetizer includes：Control switch, constant-current charge controlling circuit of voltage regulation, step-up transformer, rectification circuit, accumulation of energy
Capacitor, high power switch, cable and magnetizing coil；The primary coil of the step-up transformer connects extraneous city by control switch
Electricity, the constant-current charge controlling circuit of voltage regulation are arranged between the primary coil of step-up transformer and control switch；The boosting
The secondary coil of transformer connects the two poles of the earth of energy storage capacitor by the rectification circuit；The two poles of the earth of energy storage capacitor pass through the cable
Connect magnetizing coil；The high power switch is arranged between the anode of energy storage capacitor and cable.
In preferred technical solution, the magnetizing coil includes the X concatenated subcoils that magnetize, wherein X=n-2；Step
It magnetizes described in S3, is that branch magnetizes, i.e., sufficiently magnetize every time to saturation to a line progress in magnetic steel array, thus line by line
Complete magnetizing for entire Halbach magnetic array.
In further preferred technical solution, the magnetizing coil further includes X-1 magnetizer, the adjacent son that magnetizes of every two
The magnetizer is provided between coil.
In further preferred technical solution, the high power switch is that plate is silicon-controlled.
In further preferred technical solution, the energy storage capacitor is low internal resistance capacitor.
In further preferred technical solution, the cable is low-impedance cable.
In technical solution still more preferably, the low-impedance cable is arranged using low inductance wire laying mode.
The beneficial effects of the invention are as follows：
Halbach magnetic array is manufactured using the magnetizer and manufacturing method of technical solution of the present invention, in small magnet steel
Expected Halbach magnetic steel array is first arranged in front of unmagnetized, and gluing or securely fixed as required with other methods, because
There is no magnetic action, this is easily achieved；It is gone to sea again with magnetizer newly developed in the present invention to magnetize to manufacture
That Bake magnetic array, this not only simplifies techniques, and reduce and control, clamp fixture, and ensure that the cleaning of production process, subtract
Few sundries, dust are infiltrated, and can also be greatly improved quality, be reduced cost.
The present invention is described in further detail below in conjunction with the accompanying drawings.
Detailed description of the invention
Fig. 1 is magnetizer used in a kind of manufacturing method of Halbach magnetic array in the specific embodiment of the invention
Circuit diagram；
Fig. 2 is the schematic diagram that magnetizing coil magnetizes to magnetic steel array in the specific embodiment of the invention.
Specific embodiment
A kind of manufacturing method for Halbach magnetic array that present embodiment provides, includes the following steps：
S1), magnet steel 91 of the production for constituting the fixed substrate 92 of Halbach magnetic array and not magnetizing；
S2), the magnet steel 91 for setting quantity is fixed to fixed substrate 92 and constitutes the Halbach magnet steel that m row n is arranged
Array；
S3), magnetize to all magnet steel 91 on the magnetic steel array, form Halbach magnetic array.
Its used magnetizer is as shown in Figure 1, include：Control switch 1, constant-current charge controlling circuit of voltage regulation 2, boosting
Transformer 3, rectification circuit 4, energy storage capacitor 5, high power switch 6, cable 7 and magnetizing coil 8；At the beginning of the step-up transformer 3
Grade coil connects external commercial power by control switch 1, and step-up transformer 3 is arranged in the constant-current charge controlling circuit of voltage regulation 2
Between primary coil and control switch 1；The secondary coil of the step-up transformer 3 connects accumulation of energy electricity by the rectification circuit 4
Hold 5 the two poles of the earth；The two poles of the earth of energy storage capacitor 5 connect magnetizing coil by the cable 7；The high power switch 6 is arranged in accumulation of energy
Between the anode and cable 7 of capacitor 5.
Using step-up transformer 3 and with constant current mode commercial power rectification at direct current and to 5 constant current mode of energy storage capacitor charge,
Capacitance voltage enters potentiostatic mode after reaching setting value；When needing to magnetize, by high power switch 6 to magnetizing coil 8
It sparks, since the resistance of magnetizing coil is much smaller than inductance, overall discharge current is more than 10 kiloamperes, so as to storage
The energy of energy capacitor 5 is maximumlly converted into the magnetic energy of magnetizing coil 8.
Halbach magnetic is manufactured using the magnetizer and manufacturing method of specific embodiment of the invention technical solution
Array is first arranged in expected Halbach magnetic steel array before small magnet steel 91 is unmagnetized, and gluing or with its other party as required
Method securely fixes, because this is easily achieved without magnetic action；It is filled again with magnetizer newly developed in the present invention
Magnetic can produce Halbach magnetic array, and this not only simplifies techniques, and reduce and control, clamp fixture, and ensure that life
The cleaning of production process, reduces sundries, dust is infiltrated, and can also greatly improve quality, reduces cost.
In preferred technical solution, the magnetizing coil 8 is as shown in Fig. 2, include that the X concatenated subcoils 81 that magnetize are (same
Polarity is to filling magnetizing coil), wherein X=n-2；It magnetizes described in step S3, is that branch magnetizes, i.e., every time in magnetic steel array
A line progress sufficiently magnetize to saturation, to complete magnetizing for entire Halbach magnetic array line by line.
As shown in Fig. 2, the magnetizing coil further includes X-1 magnetizer 82 in further preferred technical solution, every two
The magnetizer 82 is provided between a adjacent subcoil 81 that magnetizes.
In further preferred technical solution, the high power switch 6 is that plate is silicon-controlled.
In further preferred technical solution, the energy storage capacitor 5 is low internal resistance capacitor, can be defeated in moment (in 1 millisecond)
The Special pulse electricity that magnetizes of nearly ten thousand Joule energy out.
In further preferred technical solution, the cable 7 is low-impedance cable.Using 70 square millimeters or more of cable
Line, and cable is short as far as possible.
In technical solution still more preferably, the low-impedance cable is arranged using low inductance wire laying mode.Using 70
Square millimeter or more cable carry out multiple twin, and cable is short as far as possible.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (7)
1. a kind of manufacturing method of Halbach magnetic array, includes the following steps：
S1), magnet steel of the production for constituting the fixed substrate of Halbach magnetic array and not magnetizing；
S2), the magnet steel for setting quantity is fixed to fixed substrate and constitutes the Halbach magnetic steel array that m row n is arranged；
S3), magnetize to all magnet steel on the magnetic steel array, form Halbach magnetic array；
It is that branch magnetizes it is characterized in that, magnetizing described in step S3, i.e., a line in magnetic steel array is carried out every time abundant
It magnetizes to saturation, to complete magnetizing for entire Halbach magnetic array line by line.
2. magnetizer used in a kind of manufacturing method of Halbach magnetic array, the manufacturing method is as described in claim 1,
It is characterized in that, the magnetizer includes：Control switch, constant-current charge controlling circuit of voltage regulation, step-up transformer, rectification circuit,
Energy storage capacitor, high power switch, cable and magnetizing coil；The primary coil of the step-up transformer is connected outer by control switch
Boundary's alternating current, the constant-current charge controlling circuit of voltage regulation are arranged between the primary coil of step-up transformer and control switch；It is described
The secondary coil of step-up transformer connects the two poles of the earth of energy storage capacitor by the rectification circuit；The two poles of the earth of energy storage capacitor pass through described
Cable connection magnetizing coil；The high power switch is arranged between the anode of energy storage capacitor and cable；The magnetizing coil packet
The X concatenated subcoils that magnetize are included, wherein X=n-2；It magnetizes described in step S3, is that branch magnetizes, i.e., every time to magnet steel battle array
A line progress in column is sufficiently magnetized to saturation, to complete magnetizing for entire Halbach magnetic array line by line.
3. magnetizer used in a kind of manufacturing method of Halbach magnetic array as claimed in claim 2, feature exist
In the magnetizing coil further includes X-1 magnetizer, is provided with the magnetic conduction between the adjacent subcoil that magnetizes of every two
Body.
4. magnetizer used in a kind of manufacturing method of Halbach magnetic array as claimed in claim 2 or claim 3, feature
It is, the high power switch is that plate is silicon-controlled.
5. magnetizer used in a kind of manufacturing method of Halbach magnetic array as claimed in claim 2 or claim 3, feature
It is, the energy storage capacitor is low internal resistance capacitor.
6. magnetizer used in a kind of manufacturing method of Halbach magnetic array as claimed in claim 2 or claim 3, feature
It is, the cable is low-impedance cable.
7. magnetizer used in a kind of manufacturing method of Halbach magnetic array as claimed in claim 6, feature exist
In the low-impedance cable is arranged using low inductance wire laying mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610369991.XA CN105957707B (en) | 2016-05-30 | 2016-05-30 | A kind of manufacturing method of Halbach magnetic array and its used magnetizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610369991.XA CN105957707B (en) | 2016-05-30 | 2016-05-30 | A kind of manufacturing method of Halbach magnetic array and its used magnetizer |
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| CN105957707A CN105957707A (en) | 2016-09-21 |
| CN105957707B true CN105957707B (en) | 2018-11-20 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7015653B2 (en) * | 2017-08-10 | 2022-02-03 | 浜松ホトニクス株式会社 | Optical module and manufacturing method of optical module |
| CN112910196A (en) * | 2019-12-04 | 2021-06-04 | 东芝生活电器株式会社 | Rotor and method for manufacturing rotor of washing machine |
| CN111009407A (en) * | 2019-12-31 | 2020-04-14 | 杭州智见控股集团有限公司 | Assembling process method of Halbach array magnet assembly |
| CN111627645B (en) * | 2020-06-01 | 2021-09-07 | 北京卫星环境工程研究所 | Method for reducing magnetism of ferromagnetic material by Halbach permanent magnet array |
| CN114352616B (en) * | 2021-12-31 | 2022-07-19 | 哈尔滨工业大学 | Halbach array assembling method for magnetic levitation moving table |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1199232A (en) * | 1997-04-14 | 1998-11-18 | 信越化学工业株式会社 | Magnet block assembly for insertion device |
| CN102856032A (en) * | 2011-12-30 | 2013-01-02 | 中国人民解放军国防科学技术大学 | Installation method of Halbach structure permanent magnet |
| CN203931788U (en) * | 2014-06-25 | 2014-11-05 | 中国人民解放军国防科学技术大学 | A kind of array structure permanent magnet assembly |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6292757A (en) * | 1985-10-16 | 1987-04-28 | Sumitomo Special Metals Co Ltd | Voice coil motor |
| KR20100036526A (en) * | 2008-09-30 | 2010-04-08 | 연세대학교 산학협력단 | Halbach array magnet and manufacturing method thereof |
| US20150015354A1 (en) * | 2013-07-15 | 2015-01-15 | Roberto Sanchez Catalan | Halbach array electromagnet with substantially contiguous vertical and horizontal cores |
-
2016
- 2016-05-30 CN CN201610369991.XA patent/CN105957707B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1199232A (en) * | 1997-04-14 | 1998-11-18 | 信越化学工业株式会社 | Magnet block assembly for insertion device |
| CN102856032A (en) * | 2011-12-30 | 2013-01-02 | 中国人民解放军国防科学技术大学 | Installation method of Halbach structure permanent magnet |
| CN203931788U (en) * | 2014-06-25 | 2014-11-05 | 中国人民解放军国防科学技术大学 | A kind of array structure permanent magnet assembly |
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| CN105957707A (en) | 2016-09-21 |
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