CN215417732U - Permanent magnet rapid magnetizing device - Google Patents
Permanent magnet rapid magnetizing device Download PDFInfo
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- CN215417732U CN215417732U CN202121864267.7U CN202121864267U CN215417732U CN 215417732 U CN215417732 U CN 215417732U CN 202121864267 U CN202121864267 U CN 202121864267U CN 215417732 U CN215417732 U CN 215417732U
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- permanent magnet
- magnetizing
- magnetic part
- magnet ring
- soft magnetic
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Abstract
The utility model relates to a rapid permanent magnet magnetizing device which comprises a magnetism isolating plate, permanent magnet rings and at least two groups of magnetizing assemblies which are parallel to each other; the magnetic isolation plate and the permanent magnet ring are arranged between two adjacent groups of magnetizing assemblies; the permanent magnet ring is arranged between the first magnetism isolating plate and the second magnetism isolating plate; the permanent magnet ring comprises a first permanent magnet ring and a second permanent magnet ring which are coaxial. According to the rapid permanent magnet magnetizing device provided by the utility model, the two sides of the two magnetism isolating plates are respectively provided with the group of magnetizing assemblies, the first permanent magnet ring and the second permanent magnet ring are arranged between the two magnetism isolating plates, so that the simultaneous axial magnetization of the first permanent magnet ring and the second permanent magnet ring can be simultaneously completed, under the condition that more groups of magnetizing assemblies are arranged, the plurality of permanent magnet rings can be ensured to be magnetized with consistent quality, and the magnetic field of the magnetizing assemblies is fully utilized.
Description
Technical Field
The utility model relates to the field of permanent magnet magnetizing equipment, in particular to a permanent magnet rapid magnetizing device.
Background
The permanent magnet magnetizing is a process of applying a magnetic field to the permanent magnet along the magnetic field orientation direction, and gradually increasing the magnetic field strength until the permanent magnet reaches a technical saturation state.
The current magnetizing method generally controls the number of ampere turns of a magnetizing coil to control the intensity change of a magnetizing magnetic field, but the fixed magnetic field magnetizing technology is difficult to ensure the intensity and the direction of the magnetizing magnetic field, particularly the magnetic field intensity of a region to be magnetized, and meanwhile, the position of a workpiece to be magnetized needs to be manually adjusted in the fixed magnetic field so as to enable the workpiece to reach the set magnetic quantity.
The magnetizing mode has large errors, repeated demagnetization and demagnetization are needed, manpower and material resources are greatly wasted, the production efficiency is low, even a skilled operator needs to complete the processing of one workpiece through repeated demagnetization, and time and labor are wasted.
Therefore, the existing permanent magnet has the problems of low magnetic field utilization rate, small magnetizing quantity, inconsistent magnetizing quality and the like.
The utility model aims to provide a magnetizing method and magnetizing equipment. The permanent magnet magnetizing device has the advantages of high utilization efficiency of a magnetizing magnetic field, capability of simultaneously magnetizing a plurality of permanent magnets, high consistency of magnetizing quality and the like.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is necessary to provide a rapid permanent magnet magnetizing apparatus for addressing at least one of the above-mentioned problems.
The utility model provides a rapid permanent magnet magnetizing device which comprises a magnetism isolating plate, permanent magnet rings and at least two groups of magnetizing assemblies which are parallel to each other; the magnetic isolation plate and the permanent magnet ring are arranged between two adjacent groups of magnetizing assemblies;
the permanent magnet ring is arranged between the first magnetism isolating plate and the second magnetism isolating plate;
the permanent magnet ring comprises a first permanent magnet ring and a second permanent magnet ring which are coaxial.
In one embodiment, the magnetizing assembly comprises a stator core and a coil, wherein an annular groove is formed in the end face, close to the magnetism isolating plate, of the stator core, and the coil is arranged in the annular groove.
In one embodiment, the ring groove is disposed between a radially inner side wall of the first permanent magnet ring and a radially outer side wall of the second permanent magnet ring.
In one embodiment, the stator core includes a soft magnetic portion and a permanent magnetic portion; the annular groove is arranged on the soft magnetic part.
In one embodiment, the permanent magnet part is arranged on the end face of the soft magnet part close to the magnetism isolating plate.
In one embodiment, the soft magnetic part comprises a first soft magnetic part and a second soft magnetic part, and the first soft magnetic part and the second soft magnetic part are distributed on two end faces of the permanent magnetic part and are respectively connected with the permanent magnetic part.
In one embodiment, the permanent magnet part further comprises a second permanent magnet part, and the second permanent magnet part is arranged on the end face, close to the magnetism isolating plate, of the soft magnetic part.
In one embodiment, the permanent magnet part comprises a plurality of permanent magnet blocks.
The technical scheme provided by the embodiment of the utility model has the following beneficial technical effects:
according to the rapid permanent magnet magnetizing device provided by the utility model, the two sides of the two magnetism isolating plates are respectively provided with the group of magnetizing assemblies, the first permanent magnet ring and the second permanent magnet ring are arranged between the two magnetism isolating plates, so that the simultaneous axial magnetization of the first permanent magnet ring and the second permanent magnet ring can be simultaneously completed, under the condition that more groups of magnetizing assemblies are arranged, the plurality of permanent magnet rings can be ensured to be magnetized with consistent quality, and the magnetic field of the magnetizing assemblies is fully utilized.
Additional aspects and advantages of the present invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
FIG. 1 is a sectional structural diagram of a permanent magnet rapid magnetizing apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating an exploded structure of a permanent magnet rapid magnetizing apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic perspective view of a magnetizing assembly according to an embodiment of the present invention;
FIG. 4 is a schematic perspective view of a magnetizing assembly according to another embodiment of the present invention;
fig. 5 is a schematic perspective view of a magnetizing assembly according to another embodiment of the present invention.
Detailed Description
To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Possible embodiments of the utility model are given in the figures. The utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein by the accompanying drawings. The embodiments described by way of reference to the drawings are illustrative for the purpose of providing a more thorough understanding of the present disclosure and are not to be construed as limiting the present invention. Furthermore, if a detailed description of known technologies is not necessary for illustrating the features of the present invention, such technical details may be omitted.
It will be understood by those skilled in the relevant art that, unless otherwise defined, all terms (including 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. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It is to be understood that the term "and/or" as used herein is intended to include all or any and all combinations of one or more of the associated listed items.
The technical solution of the present invention and how to solve the above technical problems will be described in detail with specific examples.
As shown in fig. 1 and 2, the permanent magnet rapid magnetizing apparatus provided in an embodiment of the present invention includes a magnetic isolation plate 100, a permanent magnet ring 200, and at least two groups of magnetizing assemblies 300 parallel to each other; the magnetic isolation plate 100 and the permanent magnet ring 200 are arranged between two adjacent groups of magnetizing assemblies 300; the magnetic isolation plate 100 comprises a first magnetic isolation plate 110 and a second magnetic isolation plate 120 which are parallel to each other, and the permanent magnet ring 200 is arranged between the first magnetic isolation plate 110 and the second magnetic isolation plate 120; the permanent magnet ring 200 includes a first permanent magnet ring 210 and a second permanent magnet ring 220 of a coaxial line.
The permanent magnet ring 200 is a permanent magnet ring to be magnetized, is a detachable component in the permanent magnet rapid magnetizing device provided by the application, and is also an acting object of the device. The permanent magnet ring can be made of ferrite, or samarium-cobalt permanent magnet or neodymium-iron-boron permanent magnet. The magnetic shield 100 is made of a non-magnetic material, such as 304 stainless steel, to ensure a certain rigidity.
According to the rapid permanent magnet magnetizing device provided by the utility model, the two sides of the two magnetism isolating plates 100 are respectively provided with the group of magnetizing assemblies 300, the first permanent magnet ring 210 and the second permanent magnet ring 220 are arranged between the two magnetism isolating plates 100, so that the simultaneous axial magnetizing of the first permanent magnet ring 210 and the second permanent magnet ring 220 can be simultaneously completed, under the condition that more groups of magnetizing assemblies 300 are arranged, the plurality of permanent magnet rings 200 can be magnetized with consistent quality, and the magnetic field of the magnetizing assemblies 300 can be fully utilized.
Alternatively, in an embodiment of the present application, as shown in fig. 1 and 2, the magnetizing assembly 300 includes a stator core 310 and a coil 320, wherein a ring groove 311 is formed on an end surface of the stator core 310 close to the magnetic shield 100, and the coil 320 is disposed in the ring groove 311. The coil 320 can be wound in a conventional enameled wire mode, the diameter of the enameled wire is generally within 2mm, and the series-parallel connection mode of the coil 320 can be adjusted according to the current density so as to meet a certain magnetizing magnetic field intensity. Potting glue may be used to secure the coil 320 in the stator core 310.
Optionally, in a specific implementation manner of an embodiment of the present application, as shown in fig. 1, the ring groove 311 is disposed between a radially inner side wall of the first permanent magnet ring 210 and a radially outer side wall of the second permanent magnet ring 220. The ring slot 311 is formed in the stator core 310, and the coil 320 is installed therein, and the ring slot 311 is disposed at the above position, and the coil 320 is also disposed between the radial inner sidewall of the first permanent magnet ring 210 and the radial outer sidewall of the second permanent magnet ring 220, so as to ensure that the first permanent magnet ring 210 and the second permanent magnet ring 220 are located at a preferred magnetizing position, and to fully utilize an electromagnetic field.
Alternatively, in another embodiment of the present application, as shown in fig. 3, the stator core 310 includes a soft magnetic part 312 and a permanent magnetic part 313; the ring groove 311 is provided on the soft magnetic portion 312. The stator core 310 has a U-shaped cross-sectional shape, which is equivalent to a circular groove formed in one axial end face of a circular ring, and the ferromagnetic portion constitutes a main body portion of the stator core 310, and the permanent magnet portion 313 is provided at some position on the soft magnetic portion 312. Stator core 310 includes, but is not limited to, a material that may include soft magnetic material and may also include permanent magnetic material, where the permanent magnetic material may be a permanent magnet that has been magnetized and may also be a high permeability, high saturation flux material.
Alternatively, in a specific implementation manner of another embodiment of the present application, as shown in fig. 3, the permanent magnet portion 313 is disposed on an end surface of the soft magnet portion 312 close to the magnetic shield 100. The soft magnetic part 312 corresponds to a main body part of the stator core 310, a ring groove 311 is opened on an end surface of the soft magnetic part 312 close to the magnetic shield 100, and the above-mentioned permanent magnet part 313 is provided on the remaining end surface on both sides of the ring groove 311. The permanent magnet parts 313 are placed on the end surfaces of the two sides of the ring groove 311 and close to the magnetic isolation plate 100, so that the permanent magnet parts 313 are away from the first permanent magnet ring 210 and the second permanent magnet ring 220 to be magnetized, and the magnetic field reaching each position of the permanent magnet ring 200 to be magnetized is uniform.
Optionally, in another specific implementation manner of another embodiment of the application of the present invention, as shown in fig. 4, the soft magnetic part 312 includes a first soft magnetic part 312a and a second soft magnetic part 312b, and the first soft magnetic part 312a and the second soft magnetic part 312b are distributed on two end surfaces of the permanent magnetic part 313 and are respectively connected to the permanent magnetic part 313. In this case, the soft magnetic part 312 is formed by splicing two symmetrical first soft magnetic parts 312a and second soft magnetic parts 312b, and the permanent magnetic part 313 is provided between the two parts. Optionally, as shown in fig. 5, the permanent magnet portion 313 further includes a second permanent magnet portion 314, and the second permanent magnet portion 314 is disposed on an end surface of the soft magnet portion 312 close to the magnetism isolating plate 100. In order to distinguish the permanent magnetic parts 313 at different positions on the soft magnetic part 312, the permanent magnetic part 313 arranged between the first soft magnetic part 312a and the second soft magnetic part 312b is called a permanent magnetic part 313, and the second permanent magnetic part 314 additionally arranged on the end surface of the soft magnetic part 312 close to the magnetic shield 100, specifically, the end surface of the soft magnetic part 312 close to the magnetic shield 100 on both sides of the ring groove 311 is called a permanent magnetic part 311. By adopting the soft magnetic part 312, the permanent magnetic part 313 and the second permanent magnetic part 314 with the structure, not only can the magnetic field reaching each position of the permanent magnetic ring 200 with magnetization be uniform, but also the manufacturing and the assembly of the permanent magnetic part 313 can be facilitated.
Optionally, in some specific implementations of another embodiment of the present application, as shown in fig. 3 to 5, the permanent magnet portion 313 includes a plurality of permanent magnets. The permanent magnet part 313 may be a split type, and is formed by surrounding a plurality of permanent magnet blocks with the same shape and size. The second permanent magnetic part 314 can also be split and uniformly distributed on the end surface of the soft magnetic part 312 close to the magnetism isolating plate 100. Of course, the first permanent magnet ring 210 and the second permanent magnet ring 220 may be of a split structure, and may be composed of a plurality of permanent magnet blocks.
When performing the magnetizing operation, the coils 320 of the magnetizing assemblies 300 on both sides of the magnetic shield 100 are first potted or fixed in the stator core 310 to form a stator assembly. Then, the first permanent magnet ring 210 and the second permanent magnet ring 220 are installed between the first and second magnetism isolating plates 110 and 120 to form a concentric rotor assembly. After the whole permanent magnet rapid magnetizing device is installed, current excitation is provided for the coils 320 on and under the magnetic isolation plate 100 at the same time, after a certain time, the first permanent magnet ring 210 and the second permanent magnet ring 220 complete magnetizing at the same time, and then the stator assembly is taken out to be detected.
By using the principle of electromagnet and right-hand rule, the internal and external gaps of two electromagnets can generate magnetic field strength with certain intensity. When the stator assemblies in the magnetizing assemblies 300 above and below the magnetism isolating plate 100 are consistent and the areas of the inner and outer magnetic poles are the same, and the distances between the permanent magnets and the magnetic pole surfaces are the same, the magnetic resistance of the permanent magnets is also the same. Then, according to the magnetic circuit theorem, the magnetic field intensity at the permanent magnet is the same, the magnetizing magnetic field consistency can be met, and the magnetizing degree of the permanent magnet is consistent. In addition, the rotor assembly is of an annular structure, so that the requirement that a certain number of permanent magnets are magnetized simultaneously can be met, and the magnetizing efficiency is improved.
It will be appreciated by those skilled in the art that the terms "first", "second" and "first" have been discussed herein for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to any number of technical features being indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.
Claims (8)
1. A permanent magnet rapid magnetizing device is characterized by comprising a magnetism isolating plate, permanent magnet rings and at least two groups of mutually parallel magnetizing assemblies; the magnetic isolation plate and the permanent magnet ring are arranged between two adjacent groups of magnetizing assemblies;
the permanent magnet ring is arranged between the first magnetism isolating plate and the second magnetism isolating plate;
the permanent magnet ring comprises a first permanent magnet ring and a second permanent magnet ring which are coaxial.
2. The rapid permanent magnet magnetizing device of claim 1, wherein the magnetizing assembly comprises a stator core and a coil, an annular groove is formed on an end surface of the stator core close to the magnetism isolating plate, and the coil is arranged in the annular groove.
3. The permanent magnet rapid charging apparatus according to claim 2, wherein the ring groove is disposed between a radially inner side wall of the first permanent magnet ring and a radially outer side wall of the second permanent magnet ring.
4. The permanent magnet rapid charging apparatus according to claim 2, wherein the stator core includes a soft magnetic part and a permanent magnetic part; the annular groove is arranged on the soft magnetic part.
5. The rapid permanent magnet magnetizing device of claim 4, wherein the permanent magnet part is disposed on an end surface of the soft magnetic part close to the magnetism isolating plate.
6. The rapid permanent magnet magnetizing device according to claim 4, wherein the soft magnetic part comprises a first soft magnetic part and a second soft magnetic part, and the first soft magnetic part and the second soft magnetic part are distributed on two end faces of the permanent magnetic part and are respectively connected with the permanent magnetic part.
7. The rapid permanent magnet magnetizing device of claim 6, wherein the permanent magnet part further comprises a second permanent magnet part, and the second permanent magnet part is disposed on an end surface of the soft magnetic part close to the magnetism isolating plate.
8. The permanent magnet rapid charging device according to claim 4, wherein the permanent magnet portion comprises a plurality of permanent magnet blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121864267.7U CN215417732U (en) | 2021-08-10 | 2021-08-10 | Permanent magnet rapid magnetizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121864267.7U CN215417732U (en) | 2021-08-10 | 2021-08-10 | Permanent magnet rapid magnetizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215417732U true CN215417732U (en) | 2022-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121864267.7U Active CN215417732U (en) | 2021-08-10 | 2021-08-10 | Permanent magnet rapid magnetizing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215417732U (en) |
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2021
- 2021-08-10 CN CN202121864267.7U patent/CN215417732U/en active Active
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