CN109887703B - NdFeB (neodymium iron boron) orientation device of square wave magnetic ring - Google Patents
NdFeB (neodymium iron boron) orientation device of square wave magnetic ring Download PDFInfo
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- CN109887703B CN109887703B CN201811471993.5A CN201811471993A CN109887703B CN 109887703 B CN109887703 B CN 109887703B CN 201811471993 A CN201811471993 A CN 201811471993A CN 109887703 B CN109887703 B CN 109887703B
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Abstract
The invention discloses a neodymium iron boron orientation device of a square wave magnetic ring, which mainly comprises a 45# iron framework and a magnetic block group, wherein the 45# iron framework is cylindrical, a plurality of grooves are formed in the inner wall of the 45# iron framework, and the magnetic block group is fixedly connected to the grooves of the 45# iron framework and surrounds the grooves to form a circle. The beneficial effects of the invention are as follows: the shape of the groove corresponds to the shape of the magnetic block group one by one, so that the installation and the fixation are convenient; realizing that the magnetic density distribution curve of the outer surface of the ferrite multistage magnetic ring is square wave; the invention realizes the magnetic ring distributed in square wave form through the structural design of the NdFeB orientator.
Description
Technical Field
The invention relates to a multipole magnetic ring orienter, in particular to a neodymium-iron-boron orienter with square wave magnetic rings.
Background
In recent years, the technology of permanent magnetic ferrite multipolar magnetic rings is fast-moving, and the demands of customers are also becoming more and more diversified. At present, most common magnetic density distribution on the outer surface of a multipolar magnetic ring in the market is mostly sine wave or approximately sine wave distribution, and magnetic rings distributed in a square wave form are rarely seen. For some special motors, a square wave distributed magnetic ring is required to match it.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a neodymium-iron-boron orienter of a square-wave magnetic ring, and the square-wave distributed magnetic ring is realized through structural design of the neodymium-iron-boron orienter.
The aim of the invention is achieved by the following technical scheme. The neodymium iron boron orientation device of the square wave magnetic ring mainly comprises a 45# iron framework and a magnetic block group, wherein the 45# iron framework is cylindrical, a plurality of grooves are formed in the inner wall of the 45# iron framework, and the magnetic block group is fixedly connected to the grooves of the 45# iron framework and surrounds the grooves to form a ring.
Still further, the magnetic block group mainly include first group's magnetic block, second group's magnetic block, third group's magnetic block and fourth group's magnetic block, every group's magnetic block group is equipped with two thick neodymium iron boron magnetic blocks and two thin neodymium iron boron magnetic blocks, wherein is equipped with two thin neodymium iron boron magnetic blocks in the middle of every two thick neodymium iron boron magnetic blocks.
Further, the first group of magnetic blocks and the third group of magnetic blocks have the same polarity, and the second group of magnetic blocks and the fourth group of magnetic blocks have opposite polarities.
The beneficial effects of the invention are as follows:
1. the shape of the groove corresponds to the shape of the magnetic block group one by one, so that the installation and the fixation are convenient;
2. realizing that the magnetic density distribution curve of the outer surface of the ferrite multistage magnetic ring is square wave;
3. the magnetic blocks with different thicknesses are adopted and are arranged according to a specified mode, so that the magnetic ring in the square wave form is easy to realize.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a block composition diagram of the present invention;
FIG. 3 is a graph of the internal magnetic density test of the NdFeB orient device of the present invention;
fig. 4 is a magnetic density distribution curve of the outer surface of the magnetic ring generated by the neodymium iron boron orientation device of the invention.
Reference numerals illustrate: 45# iron frame 1, first group of magnetic blocks 2, second group of magnetic blocks 3, third group of magnetic blocks 4, fourth group of magnetic blocks 5, thick neodymium iron boron magnetic blocks 6 and thin neodymium iron boron magnetic blocks 7.
Detailed Description
The invention will be described in detail below with reference to the attached drawings:
example 1: the neodymium iron boron orientation device of the square wave magnetic ring mainly comprises a 45# iron framework 1 and a magnetic block group, wherein the 45# iron framework 1 is cylindrical, a plurality of grooves are formed in the inner wall of the 45# iron framework 1, and the magnetic block group is fixedly connected to the grooves of the 45# iron framework 1 and surrounds the grooves to form a circle. The shape of the groove corresponds to the shape of the magnetic block group one by one, so that the installation and the fixation are convenient; the magnetic density distribution curve of the outer surface of the ferrite multistage magnetic ring is a square wave.
Example 2: on the basis of embodiment 1, as shown in fig. 1, the magnetic block group mainly comprises a first group of magnetic blocks 2, a second group of magnetic blocks 3, a third group of magnetic blocks 4 and a fourth group of magnetic blocks 5, wherein each group of magnetic block group is provided with two thick neodymium-iron-boron magnetic blocks 6 and two thin neodymium-iron-boron magnetic blocks 7, and two thin neodymium-iron-boron magnetic blocks 7 are arranged between every two thick neodymium-iron-boron magnetic blocks 6. The magnetic blocks with different thicknesses are adopted and are arranged according to a specified mode, so that the magnetic ring in the square wave form is easy to realize.
Example 3: on the basis of embodiment 2, as shown in fig. 2, the first set of magnetic blocks 2 and the third set of magnetic blocks 4 have the same polarity, and the second set of magnetic blocks 3 and the fourth set of magnetic blocks 5 have opposite polarities. The adjacent magnetic resistances have opposite polarities, so that the permanent magnetic ferrite multipolar magnetic ring square wave with the polarity anisotropy is realized.
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 (1)
1. The utility model provides a neodymium iron boron orientation ware of square wave magnetic ring which characterized in that: the magnetic block assembly mainly comprises a 45# iron framework (1) and a magnetic block group, wherein the 45# iron framework (1) is cylindrical, a plurality of grooves are formed in the inner wall of the 45# iron framework (1), and the magnetic block group is fixedly connected to the grooves of the 45# iron framework (1) and surrounds the grooves to form a circle;
the magnetic block group mainly comprises a first group of magnetic blocks (2), a second group of magnetic blocks (3), a third group of magnetic blocks (4) and a fourth group of magnetic blocks (5) which are sequentially arranged, each group of magnetic blocks is provided with two thick neodymium-iron-boron magnetic blocks (6) and two thin neodymium-iron-boron magnetic blocks (7), and two thin neodymium-iron-boron magnetic blocks (7) are arranged between every two thick neodymium-iron-boron magnetic blocks (6);
the polarities of the first group of magnetic blocks (2) and the third group of magnetic blocks (4) are the same, the polarities of the second group of magnetic blocks (3) and the fourth group of magnetic blocks (5) are the same, and the polarities of the first group of magnetic blocks (2) and the second group of magnetic blocks (3) are opposite.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811471993.5A CN109887703B (en) | 2018-12-04 | 2018-12-04 | NdFeB (neodymium iron boron) orientation device of square wave magnetic ring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811471993.5A CN109887703B (en) | 2018-12-04 | 2018-12-04 | NdFeB (neodymium iron boron) orientation device of square wave magnetic ring |
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| Publication Number | Publication Date |
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| CN109887703A CN109887703A (en) | 2019-06-14 |
| CN109887703B true CN109887703B (en) | 2023-08-15 |
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| CN201811471993.5A Active CN109887703B (en) | 2018-12-04 | 2018-12-04 | NdFeB (neodymium iron boron) orientation device of square wave magnetic ring |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110460211B (en) * | 2019-07-16 | 2022-02-15 | 宁波韵升粘结磁体有限公司 | Mold for manufacturing anisotropic injection molding permanent magnet |
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