CN218888237U - Axial magnetic field motor oblique-pole rotor - Google Patents
Axial magnetic field motor oblique-pole rotor Download PDFInfo
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- CN218888237U CN218888237U CN202223437040.1U CN202223437040U CN218888237U CN 218888237 U CN218888237 U CN 218888237U CN 202223437040 U CN202223437040 U CN 202223437040U CN 218888237 U CN218888237 U CN 218888237U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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- Y02T10/64—Electric machine technologies in electromobility
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Abstract
The utility model discloses an axial magnetic field motor oblique pole rotor, including rotor core, rotor core is hollow annular disc, rotor core's side is provided with the logical groove of magnetic pole installation, the radial central line that the logical groove was led to in the magnetic pole installation with rotor core's radially is first contained angle setting, and magnetic pole fixed connection is in the logical inslot of magnetic pole installation, the logical groove of magnetic pole installation with the magnetic pole cooperation sets up. The utility model discloses an axial magnetic field motor skewed pole rotor, the structure is simpler, and it is more convenient to assemble, can reduce the demagnetization risk better, has improved the mechanical strength of rotor.
Description
The applicant's priority of chinese patent application No. 202223095887.6 entitled "an axial magnetic field motor skewed pole rotor" filed by the chinese patent office at 11/18/2022 is hereby incorporated by reference in its entirety.
Technical Field
The utility model relates to the technical field of electric machines, in particular to axial magnetic field motor skewed pole rotor.
Background
An axial magnetic field motor is also called a disc motor, namely a motor with a main magnetic field along the direction of a rotating shaft. The axial magnetic field motor is different from the radial magnetic field of the traditional cylindrical motor, the air gap of the axial magnetic field motor is a plane type, the air gap magnetic field is an axial type, and the axial magnetic field motor has the characteristics of small volume, light weight and simple structure, and also has the advantages of high power/volume ratio and small capacity of a required inverter, thereby being a motor with wide application.
In order to improve the running stability of the motor and reduce the noise vibration of the motor in the prior art, an oblique pole structure is often adopted to reduce the electromagnetic noise, a sectional oblique pole structure is generally adopted at present, a permanent magnet and a rotor core are segmented together, the permanent magnets on different rotor cores are arranged in a stepped mode, and the structure can increase the complexity degree during manufacturing and assembling.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an axial magnetic field motor skewed pole rotor, the structure is simpler, and it is more convenient to assemble, can reduce the demagnetization risk better, has improved the mechanical strength of rotor.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides an axial magnetic field motor skewed pole rotor, includes rotor core, rotor core is hollow annular dish, rotor core's side is provided with the logical groove of magnetic pole installation, the radial central line that the logical groove was led to in the magnetic pole installation with rotor core's radially is first contained angle and sets up, and magnetic pole fixed connection is in the logical inslot is led to in the magnetic pole installation, the logical groove of magnetic pole installation with the magnetic pole cooperation sets up.
Optionally, each said magnetic pole comprises one or more pieces of magnetic steel.
Optionally, a surface of the magnetic steel close to the end surface of the rotor core is a rectangular surface or a parallelogram surface.
Optionally, each magnetic pole comprises two pieces of magnetic steel, and the two pieces of magnetic steel are arranged in parallel.
Optionally, every on the rotor core magnetic pole installation leads to the groove and is provided with two-layerly the parallel corresponding setting of magnetic pole installation leads to the groove, and two-layerly magnetic pole installation leads to the groove and follows rotor core's axial interval sets up.
Optionally, the outer side of the rotor core is sleeved with a first protection sleeve, and the first protection sleeve is connected to the outer side surface of the rotor core in an interference manner.
Optionally, a second protective sleeve is sleeved on the inner side of the rotor core, and the second protective sleeve is connected to the inner side surface of the rotor core in an interference manner.
Optionally, the magnetic steel is bonded in the magnetic pole mounting through groove.
Optionally, a V-shaped limiting boss is arranged on the upper side or the lower side of the magnetic pole mounting through groove, and a convex ridge of the V-shaped limiting boss is located on a plane where a radial central line of the magnetic pole mounting through groove is located.
Optionally, the rotor core includes a plurality of rotor core components of a whole that can function independently, and is a plurality of rotor core components of a whole that can function independently coaxial cover is established together, and is a plurality of the terminal surface of rotor core components of a whole that can function independently is located the coplanar, and is adjacent the magnetic pole mounting groove of rotor core components of a whole that can function independently staggers or corresponds the setting.
According to the above technical scheme, the utility model provides an axial magnetic field motor skewed pole rotor, rotor core are hollow annular dish, and rotor core's side is provided with the logical groove of magnetic pole installation, and the magnetic pole is connected and is led to the inslot at the magnetic pole installation. The utility model discloses an axial magnetic field motor oblique polar rotor, the radial central line that the logical groove was led to in the magnetic pole installation radially is first contained angle setting with rotor core to make overall structure's magnetic pole form oblique utmost point, rotor core also is overall structure, for the iron core of the oblique utmost point structure of the adoption sectional type among the prior art and sectional type, the structure is simpler, and it is more convenient to assemble. The magnetic poles are arranged in the magnetic pole mounting through grooves to form built-in rotors, so that demagnetization risks can be reduced better, and the mechanical strength of the rotors is improved.
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 creative efforts.
Fig. 1 is a schematic structural view of an axial magnetic field motor skewed-pole rotor according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a rotor core according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional structural view of a rotor core provided in an embodiment of the present invention along a vertical axis;
fig. 4 is a schematic structural diagram of magnetic steel according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a magnetic steel according to another embodiment of the present invention;
fig. 6 is a schematic structural diagram of a magnetic pole according to an embodiment of the present invention;
fig. 7 is a schematic cross-sectional structural view of a rotor in a vertical axis direction according to an embodiment of the present invention;
fig. 8 is a schematic structural view of an axial field motor skewed pole rotor according to another embodiment of the present invention;
FIG. 9 is a cross-sectional view of the rotor of FIG. 8 in a vertical axis;
FIG. 10 is a schematic structural view of the rotor core of FIG. 8;
FIG. 11 is a schematic cross-sectional view of the rotor core of FIG. 10 taken along the vertical axis;
fig. 12 is a schematic structural view of an axial field motor skewed pole rotor according to another embodiment of the present invention;
FIG. 13 is a cross-sectional view of the rotor of FIG. 12 in the vertical axis direction;
fig. 14 is a schematic view of the structure of the rotor core of fig. 12;
fig. 15 is a schematic cross-sectional view of the rotor core of fig. 14 taken along a vertical axis.
Wherein:
1. the rotor core, 101, magnetic pole installation logical groove, 102, the spacing boss of V type, 103, rotor core components of a whole that can function independently, 2, magnetic pole, 201, magnet steel, 3, first lag.
Detailed Description
The utility model discloses an axial magnetic field motor skewed pole rotor, the structure is simpler, and it is more convenient to assemble, can reduce the demagnetization risk better, has improved the mechanical strength of rotor.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 7, the utility model discloses an axial magnetic field motor skewed pole rotor, including rotor core 1, rotor core 1 is hollow annular dish, and rotor core 1's side is provided with the logical groove 101 of magnetic pole installation. The radial central line of the magnetic pole installation through groove 101 and the radial direction of the rotor core 1 form a first included angle A, the magnetic pole 2 is fixedly connected in the magnetic pole installation through groove 101, and the magnetic pole installation through groove 101 is matched with the magnetic pole 2.
The rotor core 1 is processed into a hollow structure as shown in fig. 1 or fig. 2, and the material of the rotor core may be a silicon steel strip rolled or a soft magnetic powder core integrally formed. The direction of easy magnetization of the magnetic pole 2 is shown by the arrow in fig. 4 or 5. The magnetic pole mounting through grooves 101 are provided in plurality along the side of the rotor core 1, and the plurality of magnetic pole mounting through grooves 101 are uniformly distributed on the side of the rotor core 1. The first included angle a is an acute angle, and the size of the first included angle a is set by a person skilled in the art according to actual needs.
The utility model discloses an axial magnetic field motor skewed pole rotor, rotor core 1 are hollow annular disc, and rotor core 1's side is provided with the logical groove 101 of magnetic pole installation, and magnetic pole 2 is connected in the logical groove 101 of magnetic pole installation. The utility model discloses an axial magnetic field motor oblique polar rotor, the radial central line that leads to groove 101 in the magnetic pole installation radially is first contained angle A setting with rotor core 1 to make overall structure's magnetic pole 2 form oblique utmost point, rotor core 1 also is overall structure, for the iron core of the oblique utmost point structure of adoption sectional type and sectional type among the prior art, the structure is simpler, and it is more convenient to assemble. The magnetic poles 2 are arranged in the magnetic pole installation through grooves 101 to form built-in rotors, so that demagnetization risks can be reduced better, and the mechanical strength of the rotors is improved.
Specifically, each magnetic pole 2 includes one or more magnetic steels 201, where the number of the magnetic steels is two or more. As shown in fig. 1, each magnetic pole 2 in fig. 1 includes two magnetic steels 201 arranged in parallel. Wherein, two magnet steel 201 can hug closely the setting, also can radially set up at a certain distance apart, as shown in fig. 6, the width value of this distance is designed by designer according to actual need. Through with two magnet steel 201 certain distance of interval, will increase the d axle magnetic resistance of rotor to play the effect that increases salient pole ratio, can also reduce the vortex.
The surface of magnetic steel 201 close to the end surface of rotor core 1 is a rectangular surface, so that magnetic steel 201 is rectangular magnetic steel, as shown in fig. 4. Alternatively, the surface of the magnetic steel 201 close to the end surface of the rotor core 1 is a parallelogram surface, as shown in fig. 5.
Specifically, the through grooves 101 for magnetic pole installation on each rotor core 1 are provided with two layers, the through grooves 101 for magnetic pole installation on two layers are arranged in parallel and correspondingly, and the through grooves 101 for magnetic pole installation on two layers are arranged along the axial interval of the rotor core 1.
In order to improve the positioning effect of the magnetic pole mounting through groove 101 on the magnetic pole 2, a V-shaped limiting boss 102 is arranged on the upper side or the lower side of the magnetic pole mounting through groove 101. The upper side or the lower side is a groove surface parallel to the end surface of the rotor core 1. The raised ridge of the V-shaped limit boss 102 is located on the plane where the radial center line of the magnetic pole mounting through groove 101 is located. Each side surface of the V-shaped limit boss 102 is in contact with the edge of one magnetic steel 201, so that two magnetic steels 201 constituting the magnetic pole 2 are clamped by friction.
During installation, the magnetized or non-magnetized magnetic poles 2 are inserted into the magnetic pole installation through grooves 101 to form the rotor. And gluing is carried out in the magnetic pole mounting through groove 101 for inserting the magnetic pole 2, so as to realize positioning. The magnetic pole 2 may be directly inserted into the magnetic pole mounting groove 101 and then bonded.
In order to improve the installation reliability of the magnetic pole 2 in the rotor rotation process, the outer side sleeve of the rotor core 1 is provided with a first protective sleeve 3, the first protective sleeve 3 is connected to the outer side surface of the rotor core 1 in an interference mode, and the magnetic pole 2 is prevented from falling out along the outer side opening of the magnetic pole installation through groove 101. The inboard cover of rotor core 1 is equipped with second lag (not shown in the figure), second lag interference is connected on rotor core 1's medial surface, avoids magnetic pole 2 to fall out along the inboard opening of leading to groove 101 of magnetic pole installation.
In an embodiment, as shown in fig. 8 to 11, the axial magnetic field motor skewed pole rotor of the present invention includes two rotor core components of a whole that can be separately 103, two rotor core components of a whole that can be separately 103 are the same in height, and the radial thickness is the same, and the inner diameter of the outer rotor core component of a whole that can be separately 103 is the same as the outer diameter of the inner rotor core component of a whole that can be separately 103. The magnetic pole mounting through grooves 101 in the two rotor core division bodies 103 have the same inclination angle, as shown in fig. 9.
In another embodiment, as shown in fig. 12 to 15, the axial magnetic field motor skewed pole rotor of the present invention includes two rotor core sub-bodies 103 that are sleeved together, the two rotor core sub-bodies 103 have the same height and the same radial thickness, and the inner diameter of the outer rotor core sub-body 103 is the same as the outer diameter of the inner rotor core sub-body 103. The magnetic pole mounting through grooves 101 in the two rotor core division bodies 103 have different inclination directions and the same inclination angle, so as to form V-shaped magnetic poles, as shown in fig. 15, the inner openings of the magnetic pole mounting through grooves 101 in the outer rotor core division body 103 are arranged corresponding to the outer openings of the magnetic pole mounting through grooves 101 in the inner rotor core division body 103. Here, the inner opening is a side close to the axis of rotor core 1, and the outer opening is a side far from the axis of rotor core 1.
The utility model discloses an axial magnetic field motor skewed pole rotor adopts built-in skewed pole rotor, can weaken the harmonic better, reduces electromagnetic noise, simple structure, and processing is convenient.
In the description of the present solution, it is to be understood that the terms "upper", "lower", "vertical", "inside", "outside", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present solution.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features 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 specifically limited otherwise.
In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides an axial magnetic field motor skewed pole rotor, its characterized in that, includes rotor core, rotor core is hollow annular dish, rotor core's side is provided with the logical groove of magnetic pole installation, the radial central line that the logical groove was led to in the magnetic pole installation with rotor core's radially is first contained angle setting, and magnetic pole fixed connection be in the logical inslot of magnetic pole installation, the logical groove of magnetic pole installation with the magnetic pole cooperation sets up.
2. The axial field electric motor skewed pole rotor of claim 1, wherein each of said magnetic poles comprises one or more pieces of magnetic steel.
3. The axial field motor slant-pole rotor according to claim 2, wherein a surface of the magnetic steel near an end surface of the rotor core is a rectangular surface or a parallelogram surface.
4. The skewed pole rotor of claim 2, wherein each of said magnetic poles comprises two magnetic steels, said two magnetic steels being disposed in parallel.
5. The axial field electric machine skewed pole rotor as claimed in claim 1, wherein said magnetic pole mounting through slots of each said rotor core are provided in two layers, two layers of said magnetic pole mounting through slots are correspondingly provided in parallel, and two layers of said magnetic pole mounting through slots are provided at intervals along an axial direction of said rotor core.
6. The axial field motor skewed pole rotor as claimed in claim 1, wherein said rotor core is sleeved on an outer side thereof with a first protective sleeve, said first protective sleeve being interference-connected to an outer side of said rotor core.
7. The axial field motor skewed pole rotor of claim 6, wherein said rotor core is sleeved on an inner side with a second protective sleeve, said second protective sleeve being interference-connected to an inner side of said rotor core.
8. The axial field electric motor skewed pole rotor of claim 2, wherein said magnetic steel is bonded within said pole mounting channel.
9. The axial field motor skewed pole rotor as claimed in claim 1, wherein said pole mounting channel has a V-shaped stop protrusion on either the upper or lower side, the ridge of said V-shaped stop protrusion being located on the plane of the radial centerline of said pole mounting channel.
10. The axial magnetic field motor slant pole rotor according to claim 1, wherein the rotor core includes a plurality of rotor core components, a plurality of the rotor core components are coaxially sleeved together, end faces of the plurality of the rotor core components are located on the same plane, and magnetic pole mounting grooves of adjacent rotor core components are staggered or correspondingly arranged.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2022230958876 | 2022-11-18 | ||
| CN202223095887 | 2022-11-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218888237U true CN218888237U (en) | 2023-04-18 |
Family
ID=85950185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223437040.1U Active CN218888237U (en) | 2022-11-18 | 2022-12-21 | Axial magnetic field motor oblique-pole rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218888237U (en) |
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2022
- 2022-12-21 CN CN202223437040.1U patent/CN218888237U/en active Active
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