CN216849638U - Device for marking magnetic pole of Halbach magnetic ring - Google Patents
Device for marking magnetic pole of Halbach magnetic ring Download PDFInfo
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- CN216849638U CN216849638U CN202220620259.6U CN202220620259U CN216849638U CN 216849638 U CN216849638 U CN 216849638U CN 202220620259 U CN202220620259 U CN 202220620259U CN 216849638 U CN216849638 U CN 216849638U
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- round hole
- magnetic ring
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- 238000004806 packaging method and process Methods 0.000 claims abstract description 28
- 238000009434 installation Methods 0.000 claims abstract description 14
- 239000000945 filler Substances 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 5
- 238000012545 processing Methods 0.000 abstract description 5
- 238000005538 encapsulation Methods 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 description 10
- 239000004020 conductor Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000012856 packing Methods 0.000 description 6
- 230000005415 magnetization Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 1
- 238000003754 machining Methods 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
- 238000000465 moulding Methods 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
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Abstract
The application discloses device of mark halbach magnetic ring magnetic pole includes main part and encapsulation portion. The main part is cylindric structure, and the internal diameter of main part equals the external diameter of magnetic ring, and the main part includes magnetizer and permanent magnet, and the magnetizer has a plurality of installation cavities, and each installation cavity encircles the axis of main part and evenly arranges, and the quantity of permanent magnet is a plurality of, and each permanent magnet imbeds respectively in each installation cavity, and adjacent permanent magnet is the same at the magnetic pole with one side. The packaging part is provided with a round hole, the diameter of the round hole is equal to the inner diameter of the main body part, a marking line is arranged on the first side of the packaging part in the axial direction of the round hole, the marking line extends along the radial direction of the round hole, the packaging part is connected with the main body part, the packaging part is arranged on the end face of the main body part in the second lateral direction in the axial direction of the round hole, the axis of the round hole is overlapped with the axis of the main body part, and the marking line and a permanent magnet are correspondingly arranged in the axial direction of the round hole. The magnetic pole position mark difficult problem before the magnetic ring fluting processing has been solved to the device of this application.
Description
Technical Field
The application relates to the field of permanent magnet materials, in particular to a device for marking a Halbach magnetic ring magnetic pole.
Background
The permanent magnet ring comprises a radiation orientation magnetic ring and a Halbach magnetic ring, can provide saddle-shaped and sine-wave surface magnets respectively, and is widely applied to small servo motors, vibrating motors and the like. Some applications require the magnetic ring to be grooved at the magnetic poles or at some angular position between the magnetic poles for component fixation: the magnetic poles of the radiation orientation magnetic ring are only determined by the magnetizing coil during magnetizing, and the number of poles and the angle interval between poles are determined, so that slotting processing can be carried out at any position on the magnetic ring before magnetizing; the magnetic pole number and the inter-pole angle interval of the Halbach magnetic ring are determined in the molding stage, the magnetic poles are difficult to determine and slot under the condition of no magnetization, the magnetic poles can be marked after magnetization for reprocessing, the processing difficulty of magnetizing is high, and the accuracy is reduced. Therefore, the difficult problem of processing and slotting at a certain angle position between the magnetic poles or between the magnetic poles before the Halbach magnetic ring is magnetized needs to be solved.
SUMMERY OF THE UTILITY MODEL
The application provides a device of mark halbach magnetic ring magnetic pole can solve the magnetic pole position mark difficult problem before the magnetic ring fluting processing.
An embodiment of the application provides a device for marking a Halbach magnetic ring magnetic pole, which comprises a main body part and a packaging part. The main part is cylindric structure, and the internal diameter of main part equals the external diameter of magnetic ring, and the main part includes magnetizer and permanent magnet, and the magnetizer has a plurality of installation cavity, and each installation cavity encircles the axis of main part and evenly arranges, and the quantity of permanent magnet is a plurality of, and each permanent magnet imbeds respectively in each installation cavity, and adjacent permanent magnet is the same in the magnetic pole with one side. The packaging part is provided with a round hole, the diameter of the round hole is equal to the inner diameter of the main body part, a marking line is arranged on the first side of the packaging part in the axial direction of the round hole, the marking line extends along the radial direction of the round hole, the packaging part is connected with the main body part, the packaging part is arranged on the end face of the main body part in the second lateral direction in the axial direction of the round hole, the axis of the round hole is overlapped with the axis of the main body part, and the marking line and a permanent magnet are correspondingly arranged in the axial direction of the round hole.
In some embodiments, the thickness of the device in the axial direction of the main body part is equal to the height of the magnetic ring in the axial direction of the magnetic ring.
In some of these embodiments, each mounting cavity extends through the body portion in an axial direction of the body portion.
In some embodiments, the inner wall surface of each mounting cavity is a straight prismatic surface.
In some of these embodiments, the encapsulation is a plate-like structure.
In some embodiments, the number of the encapsulation parts is two, and the two encapsulation parts are respectively located at two ends of the main body part.
In some embodiments, each of the package portions has a plurality of connection holes, each of the connection holes is uniformly arranged around the circular hole, and each of the connection holes is used for connecting two of the package portions.
In some embodiments, the axis of each connecting hole extends along the axial direction of the round hole, and the distance between each connecting hole and the round hole is larger than the difference between the outer diameter and the inner diameter of the main body part.
In some embodiments, the packaging part is a square plate-shaped structure, the number of the connecting holes is four, and the four connecting holes are respectively located at four corners of the packaging part.
In some embodiments, the main body further includes a filler made of the same material as the magnetic conductor, and the filler is configured to be embedded in the mounting cavity.
According to the device for marking the Halbach magnetic ring magnetic pole, which is provided by the embodiment of the application, the device comprises a main body part and a packaging part. The main part is cylindric structure, and the internal diameter of main part equals the external diameter of magnetic ring, and the main part includes magnetizer and permanent magnet, and the magnetizer has a plurality of installation cavity, and each installation cavity encircles the axis of main part and evenly arranges, and the quantity of permanent magnet is a plurality of, and each permanent magnet imbeds respectively in each installation cavity, and adjacent permanent magnet is the same in the magnetic pole with one side. The packaging part is provided with a round hole, the diameter of the round hole is equal to the inner diameter of the main body part, a marking line is arranged on the first side of the packaging part in the axial direction of the round hole, the marking line extends along the radial direction of the round hole, the packaging part is connected with the main body part, the packaging part is arranged on the end face of the main body part in the second axial direction of the round hole, the axis of the round hole is coincided with the axis of the main body part, and the marking line and a permanent magnet are correspondingly arranged in the axial direction of the round hole, so that the problem of marking the magnetic pole position before the magnetic ring is subjected to slotting machining is solved. In addition, the device of this application still has the advantage of simple and easy, low-cost, easy operation.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural diagram of an apparatus according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a magnetic ring in the apparatus according to the embodiment of the present application;
FIG. 3 is a schematic diagram illustrating the distribution of permanent magnets and fillers when the magnetic poles of a 4-pole magnetic ring are marked according to the embodiment of the present application;
FIG. 4 is a schematic distribution diagram of permanent magnets and fillers when the magnetic poles of an 8-pole magnetic ring are marked in the embodiment of the present application;
FIG. 5 is a schematic diagram illustrating the distribution of permanent magnets and fillers when the magnetic poles of a 12-pole magnetic ring are marked according to the embodiment of the present application;
fig. 6 is a schematic distribution diagram of permanent magnets when the magnetic poles of a 24-pole magnetic ring are marked in the embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
Referring to fig. 1-6, an embodiment of the present application provides a device 1 for marking a magnetic pole of a halbach magnetic ring 2, including a main body portion 10 and a packaging portion 11.
The body 10 has a cylindrical structure. It can also be said that the body 10 has a through hole 103 at the center, the inner wall surface and the outer wall surface of the body in the radial direction of the hole 103 are both cylindrical surfaces, and both end surfaces of the body in the axial direction of the hole 103 are both toroidal surfaces. The inner diameter of the main body 10 is equal to the outer diameter of the magnetic ring 2. Main portion 10 includes a magnetic conductor 100 and a permanent magnet 101.
The magnetizer 100 is made of a magnetic conductive material. Magnetizer 100 has a plurality of mounting cavities 1000, such as 24 mounting cavities 1000. The mounting cavities 1000 are uniformly arranged around the axis of the body portion 10. The number of the mounting cavities 1000 may be the same as the number of poles of the magnetic ring 2, and for example, when the number of poles of the magnetic ring 2 is 24, the number of the mounting cavities 1000 is 24. Certainly, the number of the mounting cavities 1000 may also be greater than the number of poles of the magnetic ring 2, for example, when the number of poles of the magnetic ring 2 is 4, 8, or 12, the number of the mounting cavities 1000 is still 24, at this time, the permanent magnets 101 are respectively embedded in some of the uniformly arranged mounting cavities 1000, and the fillers 102 made of the magnetic conductive material used by the magnetic conductor 100 are respectively embedded in the remaining uniformly arranged mounting cavities 1000, that is, the main body portion 10 may further include the fillers 102, the fillers 102 and the magnetic conductor 100 are made of the same material, and the fillers 102 are used for being embedded in the mounting cavities 1000 so as to be suitable for different magnetic rings 2.
Each of the mounting cavities 1000 may penetrate the main body 10 in an axial direction of the main body 10, and in this case, each of the mounting cavities 1000 is a space defined by a through hole. Of course, each mounting cavity 1000 may not penetrate through the main body 10, and in this case, each mounting cavity 1000 is a space defined by a blind hole. In addition, each mounting cavity 1000 may be a space defined by a groove, and an opening of the groove may be located on an inner circumferential surface or an outer circumferential surface of the main body portion 10.
The inner wall surface of each mounting cavity 1000 may be a straight prismatic surface, such as a straight quadrangular prism surface with a square or rectangular cross section, so as to ensure the stability of the permanent magnet 101 or the filler 102 embedded in the mounting cavity 1000.
The number of permanent magnets 101 is plural. Each permanent magnet 101 is embedded in each mounting cavity 1000. Wherein "embedded" means to fit exactly into each mounting cavity 1000. The magnetic poles of adjacent permanent magnets 101 on the same side are the same. In addition, each permanent magnet 101 may be fixed in each mounting cavity 1000 by potting. It should be noted that different numbers of the permanent magnets 101 and the fillers 102 are uniformly inserted into the installation cavity 1000 according to the number of the magnetic poles of the magnetic ring 2, for example, when the number of the magnetic poles of the magnetic ring 2 is 4, the arrangement of the permanent magnets 101 and the fillers 102 is as shown in fig. 3. When the number of magnetic poles of the magnet ring 2 is 8, the arrangement of the permanent magnet 101 and the filler 102 is as shown in fig. 4. When the number of magnetic poles of the magnetic ring 2 is 12, the arrangement of the permanent magnet 101 and the filler 102 is as shown in fig. 5. When the number of magnetic poles of the magnet ring 2 is 24, the arrangement of the permanent magnets 101 is as shown in fig. 6.
The packing portion 11 has a circular hole 110, and the diameter of the circular hole 110 is equal to the inner diameter of the body portion 10. The sealing portion 11 may have a plate-like structure, and further, the sealing portion 11 may have a square plate-like structure, in which case the sealing portion 11 is a separate plate that can be attached to and detached from the main body portion 10. The number of the sealing parts 11 may be two, and the two sealing parts 11 may be respectively located at both ends of the main body part 10.
The packing portion 11 has a marking line 111 on a first side in the axial direction of the circular hole 110, the marking line 111 extending in the radial direction of the circular hole 110. Wherein, one end of the mark line 111 can extend to the edge of the circular hole 110. Of the two sealing portions 11, only one sealing portion 11 may have the mark line 111, and of course, both sealing portions 11 may have the mark line 111.
The sealing portion 11 is connected to the main body portion 10, and further, the sealing portion 11 and the main body portion 10 may be adhered by glue. The end face of the second lateral main body part 10 of the packaging part 11 in the axial direction of the round hole 110, the axis of the round hole 110 coincides with the axis of the main body part 10, and a marking line 111 and one permanent magnet 101 are correspondingly arranged in the axial direction of the round hole 110 to mark the magnetic poles of the magnetic ring 2.
Each of the packing parts 11 may have a plurality of connection holes 112, each of the connection holes 112 may be uniformly arranged around the circular hole 110, and each of the connection holes 112 is used to connect two packing parts 11, so that the two packing parts 11 are clamped at both ends of the main body part 10, and further fix the permanent magnet 101 and the filler 102 in the main body part 10. The axis of each of the connection holes 112 may extend in the axial direction of the circular hole 110, and the distance between each of the connection holes 112 and the circular hole 110 may be greater than the difference between the outer diameter and the inner diameter of the main body portion 10, so that the two packing portions 11 may be bolted. The number of the connection holes 112 may be four, and four connection holes 112 may be located at four corners of the package portion 11, respectively.
Furthermore, the thickness of the device 1 in the axial direction of the main body portion 10 may be equal to the height of the magnetic ring 2 in the axial direction of the magnetic ring 2, so that the end face of the magnetic ring 2 in the device 1 is flush with the end face of the device 1 for easy observation.
With the device 1 of the present application (shown in fig. 1), when the halbach magnetic ring 2 is to be marked with a magnetic pole, the magnetic ring 2 is inserted into the device 1 (shown in fig. 2). Under the magnetic force of the permanent magnet 101 of the main body part 10, the magnetic ring 2 can always keep a certain angle, the magnetic ring 2 can keep another angle by rotating arbitrarily, the difference between the two angles is the angle between two adjacent magnetic poles of the magnetic ring 2, the magnetic ring 2 can be marked through the marking line 111, and the angle marking of all the magnetic poles of the magnetic ring 2 can be realized by rotating the magnetic ring 2 continuously.
As shown in fig. 3 to 6, the device 1 for marking the magnetic poles of the 24-pole halbach magnetic ring 2 can realize the marking of the magnetic poles of the 4-pole, 8-pole and 12-pole magnetic rings 2 by adjusting the positions and the number of the permanent magnets 101 (inserting the filling bodies 102 made of the same material as the magnetizer 100 into the installation cavity 1000 where the permanent magnets 101 are not inserted). According to the method, the marking of the magnetic rings 2 with various different magnetic poles can be realized through one set of device 1, and the efficiency is greatly improved.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present application, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meaning of the above terms according to their specific circumstances.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A device for marking a Halbach magnetic ring magnetic pole, comprising:
the main body part is of a cylindrical structure, the inner diameter of the main body part is equal to the outer diameter of the magnetic ring, the main body part comprises a magnetizer and a plurality of permanent magnets, the magnetizer is provided with a plurality of installation cavities, the installation cavities are uniformly distributed around the axis of the main body part, the number of the permanent magnets is multiple, the permanent magnets are respectively embedded into the installation cavities, and the magnetic poles of the adjacent permanent magnets on the same side are the same; and
the packaging part is provided with a round hole, the diameter of the round hole is equal to the inner diameter of the main body part, a marking line is arranged on the first side of the round hole in the axial direction, the marking line extends in the radial direction of the round hole, the packaging part is connected with the main body part, the packaging part is located on the second side of the round hole in the axial direction, the second side of the round hole in the axial direction is towards the end face of the main body part, the axis of the round hole coincides with the axis of the main body part, and the marking line and the permanent magnet are correspondingly arranged in the axial direction of the round hole.
2. The apparatus as claimed in claim 1, wherein the magnetic poles of the Halbach magnetic ring are marked by a magnetic mark,
the thickness of the device in the axial direction of the main body part is equal to the height of the magnetic ring in the axial direction of the magnetic ring.
3. The apparatus as claimed in claim 1, wherein the magnetic poles of the Halbach magnetic ring are marked by a magnetic mark,
each of the mounting cavities penetrates the main body portion in an axial direction of the main body portion.
4. The apparatus as claimed in claim 1, wherein the magnetic poles of the Halbach magnetic ring are marked by a magnetic mark,
the inner wall surface of each mounting cavity is a straight prismatic surface.
5. The apparatus as claimed in claim 1, wherein the magnetic poles of the Halbach magnetic ring are marked by a magnetic mark,
the packaging part is of a plate-shaped structure.
6. A device for marking a Halbach magnetic ring magnetic pole as claimed in claim 1 wherein,
the number of the packaging parts is two, and the two packaging parts are respectively positioned at two ends of the main body part.
7. The apparatus as claimed in claim 6, wherein the magnetic poles of the Halbach magnetic ring are marked by a magnetic mark,
each packaging part is provided with a plurality of connecting holes, each connecting hole is uniformly distributed around the round hole, and each connecting hole is used for connecting the two packaging parts.
8. The apparatus as claimed in claim 7, wherein the magnetic poles of the Halbach magnetic ring are marked by a magnetic mark,
the axis of each connecting hole extends along the axial direction of the round hole, and the distance between each connecting hole and the round hole is larger than the difference between the outer diameter and the inner diameter of the main body part.
9. The apparatus as claimed in claim 8, wherein the magnetic poles of the Halbach magnetic ring are marked by a magnetic mark,
the packaging part is of a square plate-shaped structure, the number of the connecting holes is four, and the four connecting holes are respectively positioned at four corners of the packaging part.
10. A device for marking a Halbach magnetic ring magnetic pole as claimed in claim 1 wherein,
the main body part further comprises a filler, the filler and the magnetizer are made of the same material, and the filler is embedded into the mounting cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220620259.6U CN216849638U (en) | 2022-03-21 | 2022-03-21 | Device for marking magnetic pole of Halbach magnetic ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220620259.6U CN216849638U (en) | 2022-03-21 | 2022-03-21 | Device for marking magnetic pole of Halbach magnetic ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216849638U true CN216849638U (en) | 2022-06-28 |
Family
ID=82097251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220620259.6U Active CN216849638U (en) | 2022-03-21 | 2022-03-21 | Device for marking magnetic pole of Halbach magnetic ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216849638U (en) |
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2022
- 2022-03-21 CN CN202220620259.6U patent/CN216849638U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A device for marking the magnetic poles of the Heilbeck magnetic ring Effective date of registration: 20230509 Granted publication date: 20220628 Pledgee: Hangzhou High-tech Financing Guarantee Co.,Ltd. Pledgor: Hangzhou cijuli Technology Co.,Ltd. Registration number: Y2023330000871 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20220628 Pledgee: Hangzhou High-tech Financing Guarantee Co.,Ltd. Pledgor: Hangzhou cijuli Technology Co.,Ltd. Registration number: Y2023330000871 |