CN109509606B - Dry-pressed ferrite multipolar magnetic ring orientator - Google Patents
Dry-pressed ferrite multipolar magnetic ring orientator Download PDFInfo
- Publication number
- CN109509606B CN109509606B CN201811472011.4A CN201811472011A CN109509606B CN 109509606 B CN109509606 B CN 109509606B CN 201811472011 A CN201811472011 A CN 201811472011A CN 109509606 B CN109509606 B CN 109509606B
- Authority
- CN
- China
- Prior art keywords
- hole
- metal framework
- triangular
- holes
- magnetic ring
- 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
- 229910000859 α-Fe Inorganic materials 0.000 title claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 26
- 230000005405 multipole Effects 0.000 claims abstract description 11
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 238000005728 strengthening Methods 0.000 abstract description 3
- 230000007704 transition Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The invention discloses a dry-pressed ferrite multipolar magnetic ring orientator which mainly comprises a multipolar magnetic ring, a metal framework, a main coil and an auxiliary coil, wherein the metal framework is circular, a large circular through hole is formed in the center of the metal framework, the multipolar magnetic ring is arranged in the large circular through hole, the through hole is formed in the metal framework, and the main coil and the auxiliary coil are arranged in the through hole. The beneficial effects of the invention are as follows: the metal framework with higher magnetic conductivity is adopted, so that the magnetic conduction and the magnetic field strengthening are facilitated; the main coil and the auxiliary coil are matched to provide a magnetic field and adjust the magnetic field intensity distribution; the invention is beneficial to obtaining ideal oriented magnetic field and improving the strength of the product through the structural design of the multipole magnetic ring orienter.
Description
Technical Field
The invention relates to a multipole magnetic ring orientator, in particular to a dry-pressed ferrite multipole magnetic ring orientator.
Background
The lattice structure of the conventional ferrite multipolar magnet ring is mostly a hexagonal system, and after the ferrite multipolar magnet ring is oriented, the c-axis (easy magnetization axis) direction of a unit cell in the lattice structure occurs. In the sintering process, the shrinkage ratio of the ferrite unit cell in the c-axis direction and the shrinkage ratio in the direction perpendicular to the c-axis direction are greatly different, the shrinkage degree in the c-axis direction is greatly larger than the shrinkage degree in the direction perpendicular to the c-axis direction, the circular surface of the pressed blank is changed into an approximate polygonal shape after the pressed blank is sintered, and in general, the higher the performance of the product is, the more obvious the deformation is, and the stress concentration phenomenon at the edge angle is stronger. When the deformation exceeds a certain limit, a strong stress concentration phenomenon causes cracking of the product.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a dry-pressed ferrite multipole magnetic ring orienter, which is beneficial to obtaining an ideal oriented magnetic field and improving the strength of a product through the structural design of the multipole magnetic ring orienter.
The aim of the invention is achieved by the following technical scheme. The dry-pressed ferrite multipolar magnetic ring orientator mainly comprises a metal framework, multipolar magnetic rings, a main coil and an auxiliary coil, wherein the metal framework is circular, a large circular through hole is formed in the center of the metal framework, the multipolar magnetic rings are arranged in the large circular through hole, through holes are formed in the metal framework, and the main coil and the auxiliary coil are arranged in the through holes.
Furthermore, the through holes in the metal framework comprise round through holes and triangular through holes which are symmetrically distributed, the round through holes are distributed on the outer circle edge of the metal framework at 90 degrees, a triangular through hole is arranged between every two round through holes, a sharp angle of each triangular through hole is close to the outer circle edge of the large round through hole, and the adjacent triangular through holes are distributed at 90 degrees.
Furthermore, two sharp corners of the triangular through hole are in a certain radian.
Furthermore, a serial connection mode or a parallel connection mode is adopted between the main coil and the auxiliary coil.
Furthermore, the main coils are positioned in the triangular through holes, and two main coils are arranged on the edge of each triangular through hole and are symmetrically distributed.
Furthermore, the auxiliary coil is positioned on the edge of the circular through hole and is close to one side of the multipolar magnetic ring, and the auxiliary coil is positioned in the triangular through hole and is close to two sharp corners in radian.
The beneficial effects of the invention are as follows:
1. the metal framework with higher magnetic conductivity is adopted, so that the magnetic conduction and the magnetic field strengthening are facilitated;
2. the main coil and the auxiliary coil are matched to provide a magnetic field and adjust the magnetic field intensity distribution;
3. the symmetrical structure is adopted, so that the even distribution of the magnetic field intensity is facilitated;
4. the sharp angle of the triangular through hole is in arc transition, so that the coil is positioned conveniently;
5. the connection mode between the coils is not fixed, so that the coils are convenient to connect and easy to adjust;
6. providing a magnetic field by adopting a main coil;
7. an auxiliary coil is adopted, so that the magnetic field is enhanced, and the intensity distribution of the magnetic field is adjusted;
drawings
Fig. 1 is a schematic structural view of the present invention.
Reference numerals illustrate: a metal framework 1, a large circular through hole 1-1, a circular through hole 1-2, a triangular through hole 1-3, a multipolar magnetic ring 2, a main coil 3 and an auxiliary coil 4
Detailed Description
The invention will be described in detail below with reference to the attached drawings:
example 1: the dry-pressed ferrite multipolar magnetic ring orienter mainly comprises a metal framework 1, multipolar magnetic rings 2, a main coil 3 and an auxiliary coil 4, wherein the metal framework 1 is circular, a large circular through hole 1-1 is formed in the center of the metal framework 1, the multipolar magnetic rings 2 are arranged in the large circular through hole 1-1, through holes are formed in the metal framework 1, and the main coil 3 and the auxiliary coil 4 are arranged in the through holes. The metal framework with higher magnetic conductivity is adopted, so that the magnetic conduction and the magnetic field strengthening are facilitated; the main coil and the auxiliary coil are matched to provide magnetic field and adjust the magnetic field intensity distribution.
Example 2: on the basis of embodiment 1, as shown in fig. 1, the through holes in the metal skeleton 1 include circular through holes 1-2 and triangular through holes 1-3, and are symmetrically distributed, the circular through holes 1-2 are distributed on the outer circular edge of the metal skeleton 1 at 90 degrees, one triangular through hole 1-3 is arranged between every two circular through holes 1-2, one sharp corner of each triangular through hole 1-3 is close to the outer circular edge of the large circular through hole 1-1, and the adjacent triangular through holes 1-3 are distributed at 90 degrees. And the symmetrical structure is adopted, so that the even distribution of the magnetic field intensity is facilitated.
Example 3: on the basis of the embodiment 2, two sharp corners of the triangular through holes 1-3 are in a certain radian. The sharp angle of the triangular through hole is in arc transition, so that the coil is convenient to position.
Example 4: the main coil 3 and the auxiliary coil 4 are connected in series or in parallel. The connection mode between the coils is not fixed, so that the coils are convenient to connect and easy to adjust.
Example 6: on the basis of embodiment 4, the main coils 3 are located in the triangular through holes 1-3, and two main coils are arranged on the edge of each triangular through hole 1-3 and are symmetrically distributed. A main coil is used to provide the magnetic field.
Example 5: on the basis of the embodiment 4, the auxiliary coil 4 is positioned on the side of the circular through hole 1-2 and is close to one side of the multipolar magnetic ring, and the auxiliary coil 4 is positioned in the triangular through hole 1-3 and is close to two sharp corners in radian. The auxiliary coil is adopted, so that the magnetic field is enhanced, and the magnetic field intensity distribution is adjusted.
It should be understood that equivalents and modifications to the technical scheme and the inventive concept of the present invention should fall within the scope of the claims appended hereto.
Claims (3)
1. A dry-pressed ferrite multipole magnetic ring orienter is characterized in that: the multi-pole magnetic ring mainly comprises a metal framework (1), a multi-pole magnetic ring (2), a main coil (3) and an auxiliary coil (4), wherein the metal framework (1) is circular, a large circular through hole (1-1) is formed in the center of the metal framework (1), the multi-pole magnetic ring (2) is arranged in the large circular through hole (1-1), a through hole is formed in the metal framework (1), and the main coil (3) and the auxiliary coil (4) are arranged in the through hole;
the through holes in the metal framework (1) comprise round through holes (1-2) and triangular through holes (1-3) which are symmetrically distributed, the round through holes (1-2) are distributed on the outer circle edge of the metal framework (1) at 90 degrees, one triangular through hole (1-3) is arranged between every two round through holes (1-2), one sharp corner of each triangular through hole (1-3) is close to the outer round edge of the large round through hole (1-1), and the adjacent triangular through holes (1-3) are distributed at 90 degrees;
the main coils (3) are positioned in the triangular through holes (1-3), and two main coils (3) are arranged on the edge of each triangular through hole (1-3) and are symmetrically distributed;
the auxiliary coil (4) is positioned on the edge of the circular through hole (1-2) and is close to one side of the multipolar magnetic ring, and the auxiliary coil (4) is positioned in the triangular through hole (1-3) and is close to two sharp corners with radian.
2. The dry pressed ferrite multipole magnet ring orienter of claim 1, wherein: the two sharp corners of the triangular through hole (1-3) are in a certain radian.
3. The dry pressed ferrite multipole magnet ring orienter of claim 1, wherein: and a serial connection mode or a parallel connection mode is adopted between the main coil (3) and the auxiliary coil (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811472011.4A CN109509606B (en) | 2018-12-04 | 2018-12-04 | Dry-pressed ferrite multipolar magnetic ring orientator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811472011.4A CN109509606B (en) | 2018-12-04 | 2018-12-04 | Dry-pressed ferrite multipolar magnetic ring orientator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109509606A CN109509606A (en) | 2019-03-22 |
| CN109509606B true CN109509606B (en) | 2024-04-12 |
Family
ID=65750239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811472011.4A Active CN109509606B (en) | 2018-12-04 | 2018-12-04 | Dry-pressed ferrite multipolar magnetic ring orientator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109509606B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08162297A (en) * | 1994-12-06 | 1996-06-21 | Mitsubishi Electric Corp | Electromagnetic apparatus |
| CN102570647A (en) * | 2012-02-13 | 2012-07-11 | 中国矿业大学 | Hybrid excitation flux reversal motor |
| JP2013115956A (en) * | 2011-11-30 | 2013-06-10 | Toyota Motor Corp | Rotor for rotary electric machine and manufacturing method of the same |
| CN104505990A (en) * | 2014-09-15 | 2015-04-08 | 横店集团东磁股份有限公司 | Preparation method for sintering permanent magnetic ferrite ring of brushless motor |
| CN106252023A (en) * | 2016-08-23 | 2016-12-21 | 浙江东阳东磁稀土有限公司 | A kind of multi-pole magnet-ring orientation and the fixture that magnetizes and method |
| CN209328643U (en) * | 2018-12-04 | 2019-08-30 | 杭州史宾纳科技有限公司 | Dry-pressing ferrite multi-pole magnet-ring is orientated device |
-
2018
- 2018-12-04 CN CN201811472011.4A patent/CN109509606B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08162297A (en) * | 1994-12-06 | 1996-06-21 | Mitsubishi Electric Corp | Electromagnetic apparatus |
| JP2013115956A (en) * | 2011-11-30 | 2013-06-10 | Toyota Motor Corp | Rotor for rotary electric machine and manufacturing method of the same |
| CN102570647A (en) * | 2012-02-13 | 2012-07-11 | 中国矿业大学 | Hybrid excitation flux reversal motor |
| CN104505990A (en) * | 2014-09-15 | 2015-04-08 | 横店集团东磁股份有限公司 | Preparation method for sintering permanent magnetic ferrite ring of brushless motor |
| CN106252023A (en) * | 2016-08-23 | 2016-12-21 | 浙江东阳东磁稀土有限公司 | A kind of multi-pole magnet-ring orientation and the fixture that magnetizes and method |
| CN209328643U (en) * | 2018-12-04 | 2019-08-30 | 杭州史宾纳科技有限公司 | Dry-pressing ferrite multi-pole magnet-ring is orientated device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109509606A (en) | 2019-03-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103123844B (en) | A kind of regional magnetic field intensity enhancing combination permanent magnet | |
| CN103606748B (en) | Based on the H face horn antenna of Hanming window function Aperture field distribution | |
| CN111172823A (en) | Halbach type permanent magnet track | |
| CN204117737U (en) | A kind of magnetization magnetic structure | |
| CN109509606B (en) | Dry-pressed ferrite multipolar magnetic ring orientator | |
| US20160190879A1 (en) | Interior-permanent-magnet motor structure | |
| CN202487347U (en) | Magnetic core structure and electric reactor with same | |
| CN209328643U (en) | Dry-pressing ferrite multi-pole magnet-ring is orientated device | |
| CN204680617U (en) | A kind of anti-tripping permanent-magnet operating mechanism | |
| CN109887703B (en) | NdFeB (neodymium iron boron) orientation device of square wave magnetic ring | |
| CN203166718U (en) | Energy-saving generator | |
| CN204348480U (en) | A kind of stacked iron core of solid transformer | |
| CN211689694U (en) | Halbach type permanent magnet track | |
| CN207377944U (en) | A kind of self-locking spring catch | |
| CN201639378U (en) | Punching structure of motor stator iron core | |
| CN201549303U (en) | High-precision plane tripolar magnet block magnetizing device | |
| CN201629647U (en) | Permanent magnet for permanent magnet direct current (DC) brushless motor | |
| CN201478039U (en) | High-precision planar bipolar magnet magnetizing device | |
| CN205017133U (en) | A neodymium iron boron ends of earth magnetic ring for special -shaped motor | |
| CN204294773U (en) | Arc lamp stand processing mold | |
| CN204089141U (en) | Separate type high-tension line connector | |
| CN213660172U (en) | Ultrahigh-permeability filter magnetic core | |
| CN204946666U (en) | A kind of low-loss core lamination stacked structure | |
| CN203026321U (en) | Novel transformer framework capable of increasing creepage distance | |
| CN203095382U (en) | Lifting electromagnet with cross magnet yokes |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |