CN109585121B - Guiding structure and magnetizing device of anisotropic magnetic shoe - Google Patents
Guiding structure and magnetizing device of anisotropic magnetic shoe Download PDFInfo
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- CN109585121B CN109585121B CN201811596230.3A CN201811596230A CN109585121B CN 109585121 B CN109585121 B CN 109585121B CN 201811596230 A CN201811596230 A CN 201811596230A CN 109585121 B CN109585121 B CN 109585121B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F13/00—Apparatus or processes for magnetising or demagnetising
- H01F13/003—Methods and devices for magnetising permanent magnets
Abstract
The invention provides a pilot structure of an anisotropic magnetic shoe and a magnetizing device, relates to the technical field of magnetizing devices, and solves the technical problem that the positioning mode of positioning the anisotropic magnetic shoe and a magnetizing coil by adopting a mechanical positioning base in the prior art is single. The invention relates to a guiding structure of an anisotropic magnetic shoe, which comprises a directional magnet and a fixed magnet structure, wherein the directional magnet is arranged on a magnetizing table of a magnetizing device through the fixed magnet structure, a magnetizing coil is arranged in the magnetizing table, and a magnetizing base is inserted in the magnetizing coil.
Description
Technical Field
The invention relates to the technical field of magnetizing devices, in particular to a correcting structure of an anisotropic magnetic shoe and a magnetizing device with the correcting structure of the anisotropic magnetic shoe.
Background
In the prior art, an assembled rotor of an un-magnetized motor needs to be placed on a magnetizing device for magnetization, and the rotor and the magnetizing device are generally positioned as follows: increase pilot pin (post) on magnetization device's location base, the manual work aligns pilot pin (post) with rotor core ventilation hole or the magnetization hole of package plastic rotor magnetic shoe face, realizes the location of rotor and location base.
Ferrite magnets are divided into anisotropic and isotropic sintered ferrite permanent magnet materials, which have weak magnetic properties but can be magnetized in different directions of the magnets; the anisotropic sintered ferrite permanent magnet material has strong magnetic performance, but can only be magnetized along the preset magnetizing direction of the magnet. The anisotropic magnetic shoe magnetizes and orients the magnetic shoe in the magnetic field forming process, and demagnetizes when leaving the factory, so that the magnetic shoe has the directionality of magnetic lines of force.
The applicant has found that the prior art has at least the following technical problems:
when the rotor is magnetized, the mechanical positioning base is adopted to realize the radial matching of the anisotropic magnetic shoe and the magnetizing coil, so that the problems of difficult positioning, poor magnetizing reliability, serious damage of a mechanical positioning die and the like in the production process are caused.
Disclosure of Invention
The invention aims to provide a correcting structure of an anisotropic magnetic shoe and a magnetizing device, and solves the technical problem that the positioning mode of the anisotropic magnetic shoe and a magnetizing coil is single by adopting a mechanical positioning base in the prior art. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a correcting structure of an anisotropic magnetic shoe, which comprises a directional magnet and a magnetic fixing structure, wherein the directional magnet is arranged on a magnetizing table of a magnetizing device through the magnetic fixing structure, a magnetizing coil is arranged in the magnetizing table, a magnetizing base is inserted in the magnetizing coil, and when the anisotropic magnetic shoe of a rotor to be magnetized is arranged on the magnetizing base, the anisotropic magnetic shoe can rotate under the action of the magnetic force of the directional magnet and can rotate to the position where the axis of the anisotropic magnetic shoe of the rotor is coincident with the axis of the magnetizing coil.
Preferably, each of the anisotropic magnetic tiles has a structure with a thick middle part and thin two ends along the bending direction of the magnetic tile; the number of the directional magnets is two, the directional magnets are symmetrically distributed on the magnetizing table by taking the axis of the magnetizing coil as a symmetrical line, and the polarities of the two directional magnets on one sides facing the axis of the magnetizing coil are opposite.
Preferably, one end of the directional magnet close to the axis of the magnetizing coil is exposed outside the fixed magnetic structure, and one end of the directional magnet close to the axis of the magnetizing coil is distributed along the axis direction of the magnetizing coil.
Preferably, one end of the directional magnet exposed out of the magnetic fixing structure is a line structure or a plane structure.
Preferably, the cross section of the directional magnet is triangular, and the vertex angle of the cross section of the directional magnet faces to the axis of the magnetizing coil; or the cross section of the directional magnet is trapezoidal, and the upper bottom edge of the cross section of the directional magnet faces the axis of the magnetizing coil.
Preferably, the magnetic fixing structure is made of a non-magnetic material; the fixed magnetic structure is arranged on the magnetizing table, and the directional magnet is embedded on the fixed magnetic structure.
Preferably, the magnetizing table is provided with a magnetizing hole, and the magnetism fixing structure is arranged in the magnetizing hole in a circular ring structure.
Preferably, an end face of the magnetic fixing structure is flush with the top surface of the magnetizing table.
Preferably, the magnetic fixing structure is made of a metal aluminum material.
A magnetizing device comprises the correcting structure of the anisotropic magnetic shoe.
The invention provides a correcting structure of an anisotropic magnetic shoe, wherein when the anisotropic magnetic shoe of a rotor to be magnetized is arranged on a magnetizing base, the anisotropic magnetic shoe can rotate under the action of the magnetic force of a directional magnet and can rotate to the position where the axis of the anisotropic magnetic shoe of the rotor is superposed with the axis of a magnetizing coil.
Drawings
In order to more clearly illustrate the embodiments of the present invention 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 invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.
Fig. 1 is a schematic structural diagram of a correcting structure of an anisotropic magnetic shoe according to an embodiment of the present invention;
FIG. 2 is a schematic top view of a guiding structure of an anisotropic magnetic shoe according to an embodiment of the present invention;
FIG. 3 is a schematic sectional view taken along line B-B of FIG. 2;
fig. 4 is a schematic structural diagram of a directional magnet and an anisotropic magnetic shoe (both in a non-aligned state) according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a directional magnet and an anisotropic magnetic shoe (both in a pilot state) according to an embodiment of the present invention.
FIG. 1-directional magnet; 2-a magnetic structure; 3-magnetizing table; 4-a magnetizing coil; 5-magnetizing base; 6-anisotropic magnetic shoe; 7-magnetizing hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The invention provides a correcting structure of an anisotropic magnetic shoe, which comprises a directional magnet 1 and a fixed magnetic structure 2, wherein the directional magnet 1 is arranged on a magnetizing table 3 of a magnetizing device through the fixed magnetic structure 2, a magnetizing coil 4 is arranged in the magnetizing table 3, a magnetizing base 5 is inserted in the magnetizing coil 4, and when the anisotropic magnetic shoe 6 of a rotor to be magnetized is arranged on the magnetizing base 5, the anisotropic magnetic shoe 6 can rotate under the action of the magnetic force of the directional magnet 1 and can rotate to the position where the axis of the anisotropic magnetic shoe 6 of the rotor coincides with the axis of the magnetizing coil 4. The invention provides a novel positioning mode of the magnetizing coil 4 and the anisotropic magnetic shoe 6 of the rotor to be magnetized, and the positioning mode can realize quick clamping and accurate positioning, reduce the labor intensity of clamping personnel and improve the magnetizing reliability.
The specific embodiment that the anisotropic magnetic shoe 6 can rotate to the position where the axis of the anisotropic magnetic shoe 6 of the rotor coincides with the axis of the magnetizing coil 4 under the action of the magnetic force of the directional magnet 1 is as follows: each magnetic tile in the anisotropic magnetic tiles 6 is in a structure with thick middle and thin two ends along the bending direction of the magnetic tile; the number of the directional magnets 1 is two, the directional magnets 1 can adopt neodymium iron boron strong magnets, the directional magnets 1 are symmetrically distributed on the magnetizing table 3 by taking the axis of the magnetizing coil 4 as a symmetrical line, and the polarities of the two directional magnets 1 on one side facing the axis of the magnetizing coil 4 are opposite. When the anisotropic magnetic shoe 6 is placed on the magnetizing base 5, referring to fig. 4, the axis of the anisotropic magnetic shoe 6 and the axis of the magnetizing coil 4 may not be in a coincident state, because each magnetic shoe in the anisotropic magnetic shoe 6 is in an arch structure (the magnetic shoes in the arch structure are connected to form the annular anisotropic magnetic shoe 6), referring to fig. 5, the two directional magnets 1 continuously search for the point closest to the anisotropic magnetic shoe 6 in distance, during which the anisotropic magnetic shoe 6 rotates, when the two directional magnets 2 can find the point closest to the anisotropic magnetic shoe 6, the anisotropic magnetic shoe 6 stops moving, and at this time, the axis of the anisotropic magnetic shoe 6 and the axis of the magnetizing coil 4 coincide. In addition, it should be noted that the anisotropic magnetic shoe 6 has magnetic line directionality, and the present invention utilizes this point, the anisotropic magnetic shoe 6 having magnetic line directionality can generate magnetic force action with the directional magnet 1, and since the polarities of the two directional magnets 1 on the side facing the axis of the magnetizing coil 4 are opposite, the magnetic force action generated by the two directional magnets 1 on the anisotropic magnetic shoe 6 is the same.
As an optional implementation manner of the embodiment of the present invention, one end of the directional magnet 1 close to the axis of the magnetizing coil 4 is exposed outside the fixed magnetic structure 2, and one end of the directional magnet 1 close to the axis of the magnetizing coil 4 is distributed along the axis direction of the magnetizing coil 4. When the anisotropic magnetic shoe 6 stops rotating, the magnetizing base 5 sinks through the air cylinder at the moment, the anisotropic magnetic shoe 6 automatically and synchronously sinks, but the directional magnets 1 are distributed along the longitudinal axis of the magnetic fixing structure 2, so that the anisotropic magnetic shoe 6 is ensured not to rotate in the sinking process until the anisotropic magnetic shoe falls to the middle position of the magnetizing coil 4; after the magnetizing is finished, the cylinder automatically ejects the magnetizing base 5 together with the magnetized anisotropic magnetic shoe 6.
As an optional implementation manner of the embodiment of the present invention, one end of the directional magnet 1 exposed at the fixed magnetic structure 2 is a line structure or a plane structure. Referring to fig. 1, the end of the directional magnet 1 exposed to the magnetic fixing structure 2 is preferably a straight line, so as to find the point closest to the anisotropic magnetic tile 6, and the end of the directional magnet 1 exposed to the magnetic fixing structure 2 may also be a narrow elongated plane. The cross section of the directional magnet 1 can be triangular, and the vertex angle of the cross section of the directional magnet 1 faces the axis of the magnetizing coil 4; alternatively, the cross-sectional shape of the directional magnet 1 may be trapezoidal and the upper base of the cross-section of the directional magnet 1 faces the axis of the magnetizing coil 4.
As an optional implementation manner of the embodiment of the invention, the magnetic fixing structure 2 is made of a non-magnetic material, the magnetic fixing structure 2 must be made of a non-magnetic material, so that the effects of the directional magnet 1 and the anisotropic magnetic tile 6 are prevented from being influenced, and the magnetic fixing structure 2 can be made of a metal aluminum material; referring to fig. 1, a magnetizing hole 7 is formed in a magnetizing table 3, a magnetic fixing structure 2 is arranged in the magnetizing hole 7 in a circular structure, and a directional magnet 1 is embedded in the magnetic fixing structure 2; the top surface of the magnetic fixing structure 2 can be flush with the top surface of the magnetizing table 3, and the height of the magnetic fixing structure 2 can be about 20 cm.
Example 1:
the utility model provides a structure is just led to heteropolarity magnetic shoe, includes directional magnet 1 and solid magnetic structure 2, gu magnetic structure 2 adopts non-magnetic conductive material to make, gu magnetic structure 2 becomes annular structure and sets up in the hole 7 that magnetizes of platform 3, two directional magnets 1 use the axis of magnetizing coil 4 to inlay in gu magnetic structure 2 as the symmetry line symmetry, directional magnet 1 is close to the one end of magnetizing coil 4 axis and exposes outside solid magnetic structure 2 and two directional magnets 1 are towards one side opposite polarity of magnetizing coil 4 axis, directional magnet 1 exposes the one end of solid magnetic structure 2 and is a straight line or a plane.
Example 2:
a magnetizing apparatus comprising the guiding structure of the anisotropic magnetic shoe described in embodiment 1.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (8)
1. A pilot structure of an anisotropic magnetic shoe is characterized by comprising a directional magnet (1) and a fixed magnetic structure (2),
the directional magnet (1) is arranged on a magnetizing table (3) of a magnetizing device through the magnetism fixing structure (2), a magnetizing coil (4) is arranged in the magnetizing table (3), and a magnetizing base (5) is inserted in the magnetizing coil (4);
each magnetic tile in the anisotropic magnetic tiles (6) is of a structure with thick middle and thin two ends along the bending direction of the magnetic tile, and the magnetic tiles are sequentially connected along the circumferential direction to form the annular anisotropic magnetic tiles (6);
the number of the directional magnets (1) is two, the directional magnets (1) are symmetrically distributed on the magnetizing table (3) by taking the axis of the magnetizing coil (4) as a symmetrical line, and the polarities of the two directional magnets (1) on one sides facing the axis of the magnetizing coil (4) are opposite;
the magnetic fixing structure (2) is made of a non-magnetic material;
one end, close to the axis of the magnetizing coil (4), of the directional magnet (1) is exposed outside the fixed magnetic structure (2), and one end, close to the axis of the magnetizing coil (4), of the directional magnet (1) is distributed along the axis direction of the magnetizing coil (4).
2. The pilot structure of the anisotropic magnetic shoe according to claim 1, characterized in that the end of the directional magnet (1) exposed to the fixed magnetic structure (2) is a line structure or a plane structure.
3. The pilot structure of an anisotropic magnetic tile according to claim 1, characterized in that the cross-sectional shape of the directional magnet (1) is triangular and the apex angle of the cross-section of the directional magnet (1) is towards the axis of the magnetizing coil (4); or the cross section of the directional magnet (1) is trapezoidal, and the upper bottom edge of the cross section of the directional magnet (1) faces the axis of the magnetizing coil (4).
4. The guiding structure of the anisotropic magnetic shoe as claimed in claim 1, wherein the magnetic fixing structure (2) is made of a non-magnetic conductive material; the fixed magnetic structure (2) is arranged on the magnetizing table (3), and the directional magnet (1) is embedded on the fixed magnetic structure (2).
5. The guiding structure of the anisotropic magnetic shoe as claimed in claim 4, wherein the magnetizing table (3) is provided with a magnetizing hole (7), and the magnetic fixing structure (2) is arranged in the magnetizing hole (7) in an annular structure.
6. The guiding structure of the anisotropic magnetic shoe as claimed in claim 5, wherein an end surface of the magnetic fixing structure (2) is flush with the top surface of the magnetizing table (3).
7. The pilot structure of the anisotropic magnetic shoe according to claim 3, wherein the fixed magnetic structure (2) is made of aluminum.
8. A magnetizing apparatus comprising the aligning structure of the anisotropic magnetic shoe according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811596230.3A CN109585121B (en) | 2018-12-25 | 2018-12-25 | Guiding structure and magnetizing device of anisotropic magnetic shoe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811596230.3A CN109585121B (en) | 2018-12-25 | 2018-12-25 | Guiding structure and magnetizing device of anisotropic magnetic shoe |
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| Publication Number | Publication Date |
|---|---|
| CN109585121A CN109585121A (en) | 2019-04-05 |
| CN109585121B true CN109585121B (en) | 2022-03-25 |
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| CN201811596230.3A Active CN109585121B (en) | 2018-12-25 | 2018-12-25 | Guiding structure and magnetizing device of anisotropic magnetic shoe |
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Citations (9)
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|---|---|---|---|---|
| JP2004120891A (en) * | 2002-09-26 | 2004-04-15 | Hitachi Metals Ltd | Ferrite magnet and dynamo-electric machine |
| CN101256874A (en) * | 2007-12-27 | 2008-09-03 | 中国科学院电工研究所 | Permanent magnetism magnetic body system for rotating magnetic refrigerating device |
| CN101483094A (en) * | 2008-01-11 | 2009-07-15 | 台达电子工业股份有限公司 | Magnetizing apparatus and magnetizing device |
| CN103580401A (en) * | 2013-01-21 | 2014-02-12 | 雷勃电气（苏州）有限公司 | Magnet leading-in groove tool |
| CN203911606U (en) * | 2014-06-26 | 2014-10-29 | 浙江金达电机电器有限公司 | Magnetic shoe fixing support |
| CN204517591U (en) * | 2015-04-29 | 2015-07-29 | 南京胜捷电机制造有限公司 | A kind of magnetic shoe erecting device |
| CN105469929A (en) * | 2015-12-04 | 2016-04-06 | 重庆智仁发电设备有限责任公司 | Rotor core tile-shaped magnet magnetizing apparatus for direct current motor |
| CN108336891A (en) * | 2017-12-18 | 2018-07-27 | 上海交通大学 | The dynamic actuator of rotation peace and combinations thereof device |
| CN108438551A (en) * | 2018-03-06 | 2018-08-24 | 中核(天津)科技发展有限公司 | A kind of annular workpieces fill the fixed tool of demagnetization, conveyer system and its fixing means and transfer approach |
-
2018
- 2018-12-25 CN CN201811596230.3A patent/CN109585121B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004120891A (en) * | 2002-09-26 | 2004-04-15 | Hitachi Metals Ltd | Ferrite magnet and dynamo-electric machine |
| CN101256874A (en) * | 2007-12-27 | 2008-09-03 | 中国科学院电工研究所 | Permanent magnetism magnetic body system for rotating magnetic refrigerating device |
| CN101483094A (en) * | 2008-01-11 | 2009-07-15 | 台达电子工业股份有限公司 | Magnetizing apparatus and magnetizing device |
| CN103580401A (en) * | 2013-01-21 | 2014-02-12 | 雷勃电气（苏州）有限公司 | Magnet leading-in groove tool |
| CN203911606U (en) * | 2014-06-26 | 2014-10-29 | 浙江金达电机电器有限公司 | Magnetic shoe fixing support |
| CN204517591U (en) * | 2015-04-29 | 2015-07-29 | 南京胜捷电机制造有限公司 | A kind of magnetic shoe erecting device |
| CN105469929A (en) * | 2015-12-04 | 2016-04-06 | 重庆智仁发电设备有限责任公司 | Rotor core tile-shaped magnet magnetizing apparatus for direct current motor |
| CN108336891A (en) * | 2017-12-18 | 2018-07-27 | 上海交通大学 | The dynamic actuator of rotation peace and combinations thereof device |
| CN108438551A (en) * | 2018-03-06 | 2018-08-24 | 中核(天津)科技发展有限公司 | A kind of annular workpieces fill the fixed tool of demagnetization, conveyer system and its fixing means and transfer approach |
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| CN109585121A (en) | 2019-04-05 |
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