CN112863807B - Method and device for generating non-parallel magnetic field - Google Patents
Method and device for generating non-parallel magnetic field Download PDFInfo
- Publication number
- CN112863807B CN112863807B CN202110034653.1A CN202110034653A CN112863807B CN 112863807 B CN112863807 B CN 112863807B CN 202110034653 A CN202110034653 A CN 202110034653A CN 112863807 B CN112863807 B CN 112863807B
- Authority
- CN
- China
- Prior art keywords
- group
- coils
- magnetic field
- excitation coils
- parallel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000005284 excitation Effects 0.000 claims description 41
- 229910001004 magnetic alloy Inorganic materials 0.000 abstract description 12
- 239000000696 magnetic material Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000004088 simulation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/20—Electromagnets; Actuators including electromagnets without armatures
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
The invention discloses a method and a device for generating a non-parallel magnetic field, belonging to the field of magnetic materials. The method for generating the non-parallel magnetic field comprises at least three groups of coils, and the magnetic field orientation can be adjusted according to needs by adjusting the number of turns of each group of coils, the current magnitude of the coils, the current loading time of the coils or the relative position between the coils, such as the distance, the angle and other modes, so that the free adjustment of the magnetic field angle is realized, and the permanent magnetic alloy with different angle orientations can be prepared.
Description
Technical Field
The invention belongs to the field of magnetic materials, and particularly relates to a method and a device for generating a non-parallel magnetic field.
Background
Permanent magnetic alloy is an important functional material indispensable to modern industry and scientific technology. People convert magnetic energy into electric energy or mechanical energy by utilizing the interaction of the magnetic energy and the interaction of the magnetic energy and the electric energy; the effect of the magnetic field on the substances is utilized to change the microstructure of the substances, promote the effects of energy conservation, environmental protection and the like. Permanent magnetic alloys play an important functional role in all these devices or components.
In the current process of preparing permanent magnetic alloy, whether a single group of coils (figure 1) or two groups of coils (figure 2) are used, the magnetic fields used by the permanent magnetic alloy are parallel, the free adjustment of the angle of the magnetic field is difficult to realize, and the magnetic field orientations of the permanent magnetic alloy prepared in the way are also parallel. However, in some special applications, such as Halbach arrays, it is desirable to use non-parallel oriented magnetic fields with an angular distribution. If the conventional parallel orientation permanent magnetic alloy is adopted, module assembly is required, and the operation is complicated. Therefore, in the preparation process of the permanent magnetic alloy, a non-parallel magnetic field is very necessary to prepare the non-parallel oriented permanent magnetic alloy.
Disclosure of Invention
1. Problems to be solved
The invention provides a method and a device for generating a non-parallel magnetic field, aiming at the problem that the magnetic field orientation in the preparation process of the existing permanent magnetic alloy can not be freely adjusted, and the magnetic field orientation can be adjusted as required to prepare the non-parallel orientation permanent magnetic alloy.
2. Technical scheme
In order to solve the problems, the technical scheme adopted by the invention is as follows:
the invention provides a method for generating a non-parallel magnetic field, which utilizes at least three groups of excitation coils, wherein the magnetic field intensity generated by one group of coils is 1-5 times of the magnetic field intensity generated by the rest groups of coils, and the magnetic field generated by a certain group of coils forms a magnetic loop after passing through the rest groups of coils by utilizing the closed characteristic of the magnetic force lines, thereby realizing the adjustment of the magnetic field angle.
Preferably, the method for generating the non-parallel magnetic field uses three groups of excitation coils, wherein the first and second groups are arranged on one side, the third group is arranged on the other side, the magnetic field intensity generated by the third group of coils is 1-5 times of the magnetic field intensity generated by the first and second groups of coils, and the magnetic field generated by the third group of coils forms a magnetic loop after passing through the first and second groups of coils by using the closed characteristic of magnetic lines of force, so as to realize the adjustment of the angle of the magnetic field.
Preferably, the number of turns of the coil is 10 to 2000 turns, and the magnitude of the coil current is 10 to 2000A, and is adjustable as required.
Preferably, the adjustment of the magnetic field angle can be achieved by adjusting the spacing between the three sets of coils. Further, the magnetic field angle can be adjusted by adjusting the distance between the first group of coils and the second and third groups of coils, or by adjusting the distance between the second and third groups of coils.
Preferably, the adjustment of the magnetic field angle can be achieved by adjusting the angle between the three sets of coils. Further, the first and second sets of coils may be arranged in parallel or non-parallel with the third set of coils.
Preferably, the adjustment of the magnetic field angle can be realized by adjusting the magnitude of the currents of the three groups of excitation coils.
Preferably, the adjustment of the magnetic field angle can be realized by adjusting the loading time of the currents of the three groups of exciting coils. Furthermore, the loading time of the current of each group of excitation coils is that all the coils are loaded with the current at the same time; or the third group of coils is loaded first, and the first group and the second group are loaded simultaneously; or the third group of coils is loaded first, and the first group and the second group are loaded intermittently.
The invention also provides a device for generating the non-parallel magnetic field, which comprises three groups of excitation coils, wherein a first group and a second group are arranged on one side, a third group is arranged on the other side, the intensity of the magnetic field generated by the third group of coils is 1-5 times of that of the magnetic field generated by the first group of coils and that of the second group of coils respectively, and the magnetic field generated by the first group of coils forms a magnetic loop after passing through the second group of coils and the third group of coils by utilizing the closed characteristic of magnetic lines of force, so that the adjustment of the angle of the magnetic field is realized.
Preferably, the three groups of coils have turns of 10-2000 turns and current of 10-2000A, and the number of turns and current of the coils can be adjusted as required.
Preferably, the adjustment of the magnetic field angle can be realized by adjusting the number of turns of each set of coils, and/or the current magnitude of the coils, and/or the current loading time of the coils, and/or the distance between the coils, and/or the angle between the coils, etc.
Preferably, in the above apparatus for generating a non-parallel magnetic field, the first and second groups are respectively arranged in parallel with the third group, the first and second groups are collinear and arranged in parallel with the third group, the inner diameter of the third group coil is 20 to 1000mm, the distance between the first and second groups is 0.5 to 20 times the inner diameter of the third group coil, and the distance between the first and second groups is 1 to 20 times the inner diameter of the third group coil.
Preferably, the device for generating the non-parallel magnetic field is arranged such that the first, second and third sets are arranged non-parallel, the angle between the first and third sets is 0 to 90 °, and the angle between the second and third sets is 0 to 90 °.
3. Advantageous effects
Compared with the prior art, the invention has the beneficial effects that:
(1) The method for generating the non-parallel magnetic field can adjust the orientation of the magnetic field according to the requirement, realize the free adjustment of the angle of the magnetic field and prepare the permanent magnetic alloy with different angle orientations.
(2) The method for generating the non-parallel magnetic field can adjust the angle of the magnetic field in various ways such as adjusting the number of turns of the coil, the distance between the coils, the current of each group of the excitation coils, the loading time of the current of each group of the excitation coils and the like, and is more convenient.
Drawings
FIG. 1 is a diagram of the magnetic field generated by a single set of coils during the current permanent magnet alloy manufacturing process;
FIG. 2 is a diagram of the magnetic field generated by two sets of coils in the current permanent magnet alloy manufacturing process;
FIG. 3 is a plan view of the apparatus for generating a non-parallel magnetic field in example 1;
FIG. 4 is a simulation diagram of the non-parallel magnetic field generated by the apparatus for generating a non-parallel magnetic field according to example 1;
FIG. 5 is a simulation diagram of the non-parallel magnetic field generated by the apparatus for generating a non-parallel magnetic field according to example 2;
FIG. 6 is a simulation diagram of the non-parallel magnetic field generated by the device for generating a non-parallel magnetic field in example 3.
Detailed Description
The invention is further described with reference to specific examples.
It should be noted that the terms "upper", "lower", "left", "right" and "middle" used in the present specification are for the sake of clarity, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; as used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
As used herein, the term "about" is used to provide the flexibility and inaccuracy associated with a given term, measure or value. The degree of flexibility for a particular variable can be readily determined by one skilled in the art.
As used herein, at least one of the terms "is intended to be synonymous with one or more of. For example, "at least one of a, B, and C" explicitly includes only a, only B, only C, and their respective combinations.
Concentrations, amounts, and other numerical data may be presented herein in a range format. It is to be understood that such a range format is used merely for convenience and brevity and should be interpreted flexibly to include not only the numerical values explicitly recited as the limits of the range, but also to include all the individual numerical values or sub-ranges encompassed within that range as if each numerical value and sub-range is explicitly recited. For example, a numerical range of about 1 to about 4.5 should be interpreted to include not only the explicitly recited limit values of 1 to about 4.5, but also include individual numbers (such as 2, 3, 4) and sub-ranges (such as 1 to 3, 2 to 4, etc.). The same principle applies to ranges reciting only one numerical value, such as "less than about 4.5," which should be construed as including all such values and ranges. Moreover, such an interpretation should apply regardless of the breadth of the range or feature being described.
Any steps recited in any method or process claims may be executed in any order and are not limited to the order presented in the claims.
Example 1
The present embodiment provides an apparatus and method for generating non-parallel magnetic fields, wherein the first, second and third sets of coils are arranged in parallel.
A device for generating non-parallel magnetic field is shown in a top view as shown in FIG. 3 and a simulation diagram as shown in FIG. 4. The number of turns of the first group of coils is 20; the number of turns of the second group of coils is 20; the third set of coils has 20 turns. The inner diameter of the third group of coils is 40mm, and the distance between the first group and the second group is 60mm; the distance between the second group and the third group is 80mm; the distance between the first and third sets is 80mm.
The method for generating the non-parallel magnetic field by the device is that the loading time of the current of each group of magnet exciting coils is that all the coils are loaded with the current at the same time; the current of the first group of coils is 10A, the current of the second group of coils is 10A, and the current of the third group of coils is 10A. The die cavity area generates a non-parallel magnetic field, the included angle between the orientation direction of the center and the vertical central line is 0 degree, and the included angles between the orientation directions of the two sides and the vertical central line are 30 degrees.
Example 2
The embodiment provides a device and a method for generating non-parallel magnetic fields, wherein a first group of coils, a second group of coils and a third group of coils are arranged in parallel.
A simulation of a device for generating non-parallel magnetic fields is shown in FIG. 5. The device comprises three groups of coils, wherein the number of turns of the first group of coils is 20; the number of turns of the second group of coils is 20; the third set of coils has 40 turns. The inner diameter of the third group of coils is 20mm, and the distance between the first group and the second group is 100mm; the distance between the second group and the third group is 80mm; the distance between the first and third sets is 80mm.
The method for generating the non-parallel magnetic field by the device is that the loading time of the current of each group of magnet exciting coils is that all the coils are loaded with the current at the same time; the current of the first group of coils is 10A, the current of the second group of coils is 10A, and the current of the third group of coils is 10A. The die cavity area generates a non-parallel magnetic field, the included angle between the orientation direction of the center and the vertical central line is 0 degree, and the included angles between the orientation directions of the two sides and the vertical central line are 50 degrees.
Example 3
The embodiment provides a device and a method for generating non-parallel magnetic fields, wherein the first, second and third groups of coils are arranged in a non-parallel manner.
A simulation of a device for generating non-parallel magnetic fields is shown in FIG. 6. The device comprises three groups of coils, wherein the number of turns of the first group of coils is 20; the number of turns of the second group of coils is 20; the third set of coils has 100 turns. The inner diameter of the third group of coils is 20mm, and the distance between the first group and the second group is 120mm; the angle between the second and third sets is 90 °; the angle between the first and third sets is 90 deg..
The method for generating the non-parallel magnetic field by the device is that the loading time of the current of each group of the magnet exciting coils is that all the coils are loaded with the current at the same time; the current of the first group of coils is 10A, the current of the second group of coils is 10A, and the current of the third group of coils is 10A. The mold cavity area generates a non-parallel magnetic field, the included angle between the orientation direction of the center and the vertical central line is 0 degree, and the included angle between the orientation directions of the two sides and the vertical central line is 80 degrees.
Claims (5)
1. A device for generating a non-parallel magnetic field is characterized by comprising three groups of excitation coils, wherein a first group of excitation coils and a second group of excitation coils are arranged on one side, a third group of excitation coils are arranged on the other side, the first group of excitation coils and the second group of excitation coils are respectively arranged in parallel with the third group of excitation coils, and the magnetic field intensity generated by the third group of excitation coils is 2 to 5 times of the magnetic field intensity generated by the first group of excitation coils and the second group of excitation coils; the number of turns of the three groups of excitation coils is 10 to 2000 turns, and the current is 10 to 2000A; the first group of excitation coils and the second group of excitation coils are in the same straight line and are arranged in parallel with the third group of excitation coils, the inner diameter of the third group of excitation coils ranges from 20mm to 1000mm, the distance between the first group of excitation coils and the second group of excitation coils ranges from 0.5 to 20 times of the inner diameter of the third group of excitation coils, and the distance between the first group of excitation coils, the second group of excitation coils and the third group of excitation coils ranges from 1 to 20 times of the inner diameter of the third group of excitation coils.
2. A method for generating a non-parallel magnetic field is characterized in that the device for generating a non-parallel magnetic field according to claim 1 is used for generating a non-parallel magnetic field, the method comprises the steps of utilizing three groups of excitation coils, wherein a first group of excitation coils and a second group of excitation coils are arranged on one side, a third group of excitation coils are arranged on the other side, the magnetic field intensity generated by the third group of excitation coils is 2 to 5 times of the magnetic field intensity generated by the first group of excitation coils and the second group of excitation coils, and the magnetic field generated by the third group of excitation coils passes through the first group of excitation coils and the second group of excitation coils to form a magnetic loop by utilizing the closed characteristic of magnetic lines, so that the adjustment of the magnetic field angle is realized.
3. The method according to claim 2, wherein the adjustment of the magnetic field angle is achieved by adjusting the spacing and/or angle between the three sets of excitation coils.
4. The method of claim 2, wherein the adjustment of the angle of the magnetic field is achieved by adjusting the current of the three sets of field coils.
5. The method of claim 2, wherein the adjustment of the angle of the magnetic field is achieved by adjusting the loading time of the currents of the three sets of excitation coils.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110034653.1A CN112863807B (en) | 2021-01-12 | 2021-01-12 | Method and device for generating non-parallel magnetic field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110034653.1A CN112863807B (en) | 2021-01-12 | 2021-01-12 | Method and device for generating non-parallel magnetic field |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112863807A CN112863807A (en) | 2021-05-28 |
| CN112863807B true CN112863807B (en) | 2023-03-31 |
Family
ID=76002703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110034653.1A Active CN112863807B (en) | 2021-01-12 | 2021-01-12 | Method and device for generating non-parallel magnetic field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112863807B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008062599A1 (en) * | 2006-11-22 | 2008-05-29 | Hitachi, Ltd. | Electromagnet device and magnetic resonance imaging device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6876288B2 (en) * | 2002-03-29 | 2005-04-05 | Andrey V. Gavrilin | Transverse field bitter-type magnet |
| US6885267B2 (en) * | 2003-03-17 | 2005-04-26 | Hitachi Metals Ltd. | Magnetic-field-generating apparatus and magnetic field orientation apparatus using it |
| US7538546B2 (en) * | 2006-11-10 | 2009-05-26 | Infinitum Solutions, Inc. | In-plane magnetic field generation and testing of magnetic sensor |
| FR2999723B1 (en) * | 2012-12-14 | 2015-03-06 | Commissariat Energie Atomique | DEVICE FOR GENERATING AN ORIENTABLE AND LOCALLY HOMOGENEOUS MAGNETIC FIELD. |
| GB201518430D0 (en) * | 2015-10-19 | 2015-12-02 | Giamag Technologies As | Magnet apparatus for generating high gradient magnetic field |
| US20170204905A1 (en) * | 2016-01-19 | 2017-07-20 | Paranetics, Inc. | Methods and apparatus for generating magnetic fields |
| CN110678943B (en) * | 2017-05-26 | 2022-04-26 | 日东电工株式会社 | Method for manufacturing magnet and method for magnetizing magnet |
-
2021
- 2021-01-12 CN CN202110034653.1A patent/CN112863807B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008062599A1 (en) * | 2006-11-22 | 2008-05-29 | Hitachi, Ltd. | Electromagnet device and magnetic resonance imaging device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112863807A (en) | 2021-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107795631A (en) | For the method for the electromagnetic equipment and vibration control that produce negative stiffness | |
| CN107946018B (en) | Focusing magnetic field regulating and controlling device | |
| US20120080960A1 (en) | Low cost multi-coil linear actuator | |
| US11333728B2 (en) | Pre-polarisation magnet arrangement | |
| US20170352460A1 (en) | Magnetic field generation apparatus of magnetorheological polishing device | |
| CN112863807B (en) | Method and device for generating non-parallel magnetic field | |
| CN105577035B (en) | space small magnet suspension control method | |
| CN113471112A (en) | Magnetic suspension gravity compensation device and micro-motion platform | |
| CN105840727A (en) | Stiffness-adjustable mechanism coupled by axial magnetic force | |
| Zhang et al. | Design of a uniform bias magnetic field for giant magnetostrictive actuators applying triple-ring magnets | |
| CN104947052A (en) | Method for preparing Ni52Mn24Ga24 alloy film through laser pulse sputtering deposition | |
| EP0174004A2 (en) | Process for making a crystalline article from a melt | |
| CN105655089B (en) | A kind of rotating magnetic field device | |
| CN112863797A (en) | Non-parallel orientation permanent magnetic alloy and preparation method thereof | |
| CN110398997A (en) | A kind of preparation facilities of magnetic rheology elastic body, system and method | |
| CN210181489U (en) | Preparation device and system of magnetorheological elastomer | |
| WO1999060584A1 (en) | Uniform magnetic force generating magnet | |
| CN206076013U (en) | A kind of mechanical type controllable impedance | |
| WO2006054243A3 (en) | Method for controlling an electric motor, control unit and electric motor | |
| Sun et al. | Study on the motion of single particle chain in the magnetorheological fluid under the action of traveling magnetic field | |
| CN104694894A (en) | High-transmittance magnetic cobalt target and preparation method thereof | |
| Priem et al. | Estimation of higher-order magnetic spin interactions of Fe (III) and Gd (III) ions doped in α-alumina powder with multifrequency EPR | |
| CN100516924C (en) | Magnetic circuit with opposing permanent magnets and method for adjusting magnetic field thereof | |
| KR100810852B1 (en) | Device for orienting the direction of magnetization of magnetic layers | |
| CN111122986A (en) | Multi-axis unmanned aerial vehicle three-dimensional magnetic field noise immunity environment simulation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220706 Address after: 366300 new industrial zone, Changting Economic Development Zone, Longyan City, Fujian Province Applicant after: FUJIAN CHANGTING GOLDEN DRAGON RARE-EARTH Co.,Ltd. Address before: 366300 new industrial zone, Changting Economic Development Zone, Longyan City, Fujian Province Applicant before: FUJIAN CHANGTING GOLDEN DRAGON RARE-EARTH Co.,Ltd. Applicant before: Xiamen tungsten industry Limited by Share Ltd |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 366300 new industrial zone, Changting Economic Development Zone, Longyan City, Fujian Province Patentee after: Fujian Jinlong Rare Earth Co.,Ltd. Address before: 366300 new industrial zone, Changting Economic Development Zone, Longyan City, Fujian Province Patentee before: FUJIAN CHANGTING GOLDEN DRAGON RARE-EARTH Co.,Ltd. |