CN108092446B - Laminated motor shell and magnetic suspension motor - Google Patents
Laminated motor shell and magnetic suspension motor Download PDFInfo
- Publication number
- CN108092446B CN108092446B CN201810104038.1A CN201810104038A CN108092446B CN 108092446 B CN108092446 B CN 108092446B CN 201810104038 A CN201810104038 A CN 201810104038A CN 108092446 B CN108092446 B CN 108092446B
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- China
- Prior art keywords
- laminations
- motor
- lamination
- outer ring
- annular outer
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- 239000000725 suspension Substances 0.000 title abstract description 17
- 238000003475 lamination Methods 0.000 claims abstract description 110
- 238000005339 levitation Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/09—Structural association with bearings with magnetic bearings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention relates to the technical field of magnetic suspension, in particular to a laminated motor shell which comprises a plurality of first laminations and second laminations, wherein the first laminations are of an annular structure, the second laminations comprise a first annular outer ring which is consistent with the first laminations in shape and a plurality of first magnetic poles which are arranged along the inner circumference of the first annular outer ring, the plurality of second laminations are fixedly connected, the axes of the plurality of second laminations are coincident, and the plurality of first magnetic poles form a motor stator core; the plurality of first laminations are divided into two groups of fixed connection and then are arranged on two sides of the motor stator core, the axes of the plurality of first laminations are coincident with the axes of the second laminations, and the first laminations are fixedly connected with the first annular outer ring of the second laminations. The number of the lamination can be selected according to the size of the motor, the lamination is more flexible to set, the assembly process of the whole machine is simplified, and convenience is provided for mass production of the motor.
Description
Technical Field
The invention relates to the technical field of magnetic suspension, in particular to a laminated motor shell and a magnetic suspension motor.
Background
Small electric motors are the most common form of converting electrical energy into mechanical energy, and have wide application in household appliances and industrial fields. The conventional motor mainly comprises a motor stator part, a motor rotor part, a rotor supporting bearing and a shell part, wherein the motor stator part and the motor rotor part are connected through a mechanical bearing or are in mechanical contact, so that mechanical friction exists in the movement process of the electronic rotor. Mechanical friction not only increases the friction resistance of the rotor, so that moving parts are worn, mechanical vibration and noise are generated, but also the parts can generate heat, so that the performance of the lubricant is deteriorated, the motor air gap is seriously uneven, the winding generates heat, and the temperature rise is increased, thereby reducing the motor efficiency and finally shortening the service life of the motor. Moreover, the mechanical bearings require lubricating oil to maintain, which affects the life of the motor and is disadvantageous for cleaning the equipment, so that a non-contact supporting mode, namely a magnetic suspension supporting mode, must be adopted in the motor in order to realize ultra-high-speed operation and long-life and clean oil-free of the equipment.
The existing magnetic suspension motor is characterized in that motor stators, magnetic suspension bearings and the like in the magnetic suspension motor are connected with a shell one by one, and assembly operation is complex.
Disclosure of Invention
First, the technical problem to be solved
The invention aims to provide a novel motor shell which solves the problem of complex assembly operation.
(II) technical scheme
In order to solve the technical problems, the invention provides a laminated motor casing, which comprises a plurality of first laminations and second laminations, wherein the first laminations are of an annular structure, the second laminations comprise a first annular outer ring which is consistent with the first laminations in shape and a plurality of first magnetic poles which are arranged along the inner circumference of the first annular outer ring, the plurality of second laminations are fixedly connected, the axes of the plurality of second laminations are overlapped, and the plurality of first magnetic poles form a motor stator core; the plurality of first laminations are divided into two groups of fixed connection and then are arranged on two sides of the motor stator core, the axes of the plurality of first laminations are coincident with the axes of the second laminations, and the first laminations are fixedly connected with the first annular outer ring of the second laminations.
According to the invention, adjacent first laminations, adjacent second laminations and the first laminations and the second laminations are connected in an automatic riveting manner.
According to the invention, one surface of the first lamination is provided with a groove, the other surface of the first lamination is provided with a protrusion corresponding to the groove, and the protrusion is matched with the groove.
According to the invention, one surface of the second lamination is provided with a groove, the other surface of the second lamination is provided with a protrusion corresponding to the groove, and the protrusion is matched with the groove.
According to the invention, the first annular outer ring of the second lamination is integrally formed with the first pole.
According to the invention, the magnetic bearing stator comprises a first annular outer ring and a plurality of first magnetic poles arranged along the inner circumference of the first annular outer ring, wherein the outer diameter of the first annular outer ring is equal to that of the first magnetic poles; the motor stator core is respectively located at two sides of the motor stator core and is fixedly connected with the first lamination far away from the motor stator core.
According to the invention, the annular outer ring of the third lamination is integrally formed with the second pole.
The invention also provides a magnetic suspension motor, which comprises a rotor shaft and the laminated motor shell, wherein the rotor shaft is arranged in the laminated motor shell, and the rotor shaft and the laminated motor shell are coaxially arranged.
(III) beneficial effects
Compared with the prior art, the technical scheme of the invention has the following advantages: the laminated motor shell provided by the embodiment of the invention is arranged in a laminated shape and is formed by laminating a plurality of laminations, the magnetic poles in the annular inner part of the second lamination directly form the motor stator core, the actual integration of the shell and the stator part is formed, the installation space, the positioning regulation structure and the like in the integral shell in the prior art are omitted, the number of the laminations can be selected according to the size of the required motor, the arrangement is more flexible, the assembly process of the whole motor is simplified, and convenience is provided for the mass production of the motor.
Drawings
FIG. 1 is an exploded view of a laminated motor housing according to an embodiment of the present invention after the laminated motor housing is taken off-line;
fig. 2 is a schematic structural diagram of a laminated motor housing motor stator core and a magnetic suspension bearing stator according to another embodiment of the present invention when the motor stator core and the magnetic suspension bearing stator are respectively off-line;
FIG. 3 is a schematic view of a laminated motor housing according to another embodiment of the present invention before being taken off line;
FIG. 4 is a schematic view of a laminated motor housing according to another embodiment of the present invention after the laminated motor housing is taken off line;
fig. 5 is a schematic structural diagram of a magnetic levitation motor according to an embodiment of the present invention.
In the figure: 1: a first lamination; 2: a second lamination; 21: a first annular outer ring; 22: a first magnetic pole; 3: a groove; 4: a magnetic bearing stator; 5: a third lamination; 51: a second annular outer ring; 52: a second magnetic pole; 6: a rotor shaft.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, the laminated motor casing provided by the embodiment of the invention includes a plurality of first laminations 1 and a plurality of second laminations 2, the first laminations 1 are in an annular structure, the second laminations 2 include a first annular outer ring 21 which is consistent with the shape of the first laminations 1, and a plurality of first magnetic poles 22 which are arranged along the inner circumference of the first annular outer ring 21, the plurality of second laminations 2 are fixedly connected, and the axes of the plurality of second laminations 2 are overlapped, and the plurality of first magnetic poles 22 form a motor stator core; after being divided into two groups of fixed connection, the first laminations 1 are respectively arranged on two sides of the motor stator core, the axes of the first laminations 1 are overlapped with the axes of the second laminations 2, and the first laminations 1 are fixedly connected with the first annular outer ring 21 of the second laminations 2.
The laminated motor shell provided by the embodiment of the invention is arranged in a laminated shape and is formed by laminating a plurality of laminated sheets, the magnetic poles in the annular interior of the second laminated sheet 2 directly form the motor stator core, the actual integration of the shell and the stator part is formed, the installation space, the positioning regulation structure and the like in the integral shell in the prior art are omitted, the laminated sheets can be selectively arranged according to the size of the required motor size, the arrangement is more flexible, the assembly process of the whole motor is simplified, and convenience is provided for the mass production of the motor.
Preferably, in this embodiment, the adjacent first laminations 1, the adjacent second laminations 2, and the first laminations 1 and the second laminations 2 are all connected by means of automatic riveting. The automatic riveting is that the rigid belt is sent into a riveting machine, the riveting machine automatically punches out lamination sheets in various shapes, and each lamination sheet is provided with a mortise and tenon structure at a punching position and then can be automatically stacked together. The assembly process of the motor is accelerated through the automatic riveting process, the production efficiency is improved, and the stator core structure is accurately and reliably positioned.
Preferably, in this embodiment, a groove 3 is formed on one surface of the first lamination 1, and a protrusion is formed on the other surface of the first lamination 1 corresponding to the groove 3, and the protrusion is matched with the groove 3. The protruding matching of the grooves 3 provided ensures the positioning and fixing between adjacent first laminations 1.
Preferably, in this embodiment, a groove 3 is formed on one surface of the second lamination 2, and a protrusion is formed on the other surface of the second lamination 2 corresponding to the groove 3, and the protrusion is matched with the groove 3. The protruding matching of the grooves 3 provided ensures the positioning and fixing between adjacent second laminations 2.
Preferably, the first annular outer ring of the second lamination 2 is integrally formed with the first pole 22 in this embodiment. The first annular outer ring 21 and the first magnetic pole 22 are integrally formed, so that automatic production is facilitated, and production efficiency is improved.
As shown in fig. 1, the fixing of the magnetic bearing stator can be achieved in this embodiment by fixing the magnetic bearing stator 4 inside the first lamination 1.
As shown in fig. 2 and 3, in another embodiment of the present invention, the laminated casing further includes a plurality of third laminations 5, the third laminations 5 include a second annular outer ring 51 and a plurality of second magnetic poles 52 disposed along an inner circumference of the second annular outer ring 51, an outer diameter of the second annular outer ring 51 is the same as an outer diameter of the first lamination 1, an inner diameter of the second annular outer ring 51 is smaller than an inner diameter of the first annular outer ring 21, the plurality of third laminations 5 are divided into two groups respectively fixedly connected, and axes of the plurality of third laminations 5 are overlapped, and the two groups of third laminations 5 respectively form a magnetic bearing stator; are respectively positioned at two sides of the motor stator core and are fixedly connected with the first lamination sheet 1 far away from the motor stator core. Preferably, the annular outer ring of the third lamination 5 is integrally formed with the second pole 52 in this embodiment. During motor production, as shown in fig. 2, the second laminations 2 are automatically stacked and riveted independently, the third laminations 5 and the first laminations 1 which are stacked together in two groups are automatically stacked and riveted, a motor stator core and a magnetic suspension bearing stator respectively complete coil winding off-line, and then the combination of the third laminations 5 and the first laminations 1 is respectively fixed on two sides of the second lamination 2 group. When the inner diameters of the motor stator core and the magnetic suspension bearing stator are larger, as shown in fig. 3, all the first lamination sheets 1, the second lamination sheets 2 and the third lamination sheets 5 can be automatically overlapped and riveted to form all the shell structures, and then the coil offline procedure of the motor stator core and the magnetic suspension bearing stator can be completed through holes which are formed in the middle of the motor stator core and the magnetic suspension bearing stator and can be provided with shafts. The laminated motor housing after the completion of the off-line is shown in fig. 4. Greatly simplifying the assembly process of the whole machine and providing convenience for mass production.
The invention also provides a magnetic suspension motor, as shown in fig. 5, which comprises a rotor shaft 6 and the laminated motor shell, wherein the rotor shaft 6 is arranged in the laminated motor shell, and the rotor shaft 6 and the laminated motor shell are coaxially arranged. The magnetic levitation motor comprises the laminated motor shell, so that the magnetic levitation motor has the same technical effects and is not repeated here.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. A laminated motor housing, characterized by: the motor stator core comprises a plurality of first laminations and second laminations, wherein the first laminations are of an annular structure, the second laminations comprise a first annular outer ring which is consistent with the first laminations in shape and a plurality of first magnetic poles which are arranged along the inner circumference of the first annular outer ring, the second laminations are fixedly connected, the axes of the second laminations are coincident, and the first magnetic poles form the motor stator core; the plurality of first laminations are divided into two groups of fixed connection and then are arranged on two sides of the motor stator core, the axes of the plurality of first laminations are overlapped with the axis of the second laminations, and the first laminations are fixedly connected with the first annular outer ring of the second laminations;
the adjacent first lamination sheets, the adjacent second lamination sheets and the first lamination sheets and the second lamination sheets are connected in an automatic riveting mode;
the magnetic bearing stator comprises a first annular outer ring, a plurality of first laminations, a second annular outer ring and a plurality of magnetic poles, wherein the first magnetic poles are arranged along the inner circumference of the first annular outer ring; the motor stator core is respectively located at two sides of the motor stator core and is fixedly connected with the first lamination far away from the motor stator core.
2. The laminated motor housing of claim 1, wherein: one surface of the first lamination is provided with a groove, the position of the other surface of the first lamination corresponding to the groove is provided with a protrusion, and the protrusion is matched with the groove.
3. The laminated motor housing of claim 1, wherein: one surface of the second lamination is provided with a groove, the other surface of the second lamination is provided with a protrusion corresponding to the groove, and the protrusion is matched with the groove.
4. The laminated motor housing of claim 1, wherein: the first annular outer ring of the second lamination is integrally formed with the first magnetic pole.
5. The laminated motor housing of claim 1, wherein: the annular outer ring of the third lamination and the second magnetic pole are integrally formed.
6. A magnetic levitation motor, characterized in that: a laminated motor housing as claimed in any one of claims 1 to 5, comprising a rotor shaft disposed within the laminated motor housing, the rotor shaft being disposed coaxially with the laminated motor housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810104038.1A CN108092446B (en) | 2018-02-02 | 2018-02-02 | Laminated motor shell and magnetic suspension motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810104038.1A CN108092446B (en) | 2018-02-02 | 2018-02-02 | Laminated motor shell and magnetic suspension motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108092446A CN108092446A (en) | 2018-05-29 |
| CN108092446B true CN108092446B (en) | 2023-12-12 |
Family
ID=62193630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810104038.1A Active CN108092446B (en) | 2018-02-02 | 2018-02-02 | Laminated motor shell and magnetic suspension motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108092446B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2528923A1 (en) * | 1982-06-17 | 1983-12-23 | Europ Propulsion | MAGNETIC SUSPENSION DEVICE OF A ROTOR PLACED IN A SEALED ENCLOSURE |
| CN1833345A (en) * | 2003-07-10 | 2006-09-13 | 磁应用股份有限公司 | Compact high power alternator |
| CN102792556A (en) * | 2009-11-06 | 2012-11-21 | 阿特拉斯·科普柯空气动力股份有限公司 | Laminated core for a combined radial-axial magnetic bearing and method for constructing such a laminated core |
| CN104295604A (en) * | 2014-10-15 | 2015-01-21 | 西安交通大学 | Hybrid biased radial magnetic suspension bearing |
| CN204669104U (en) * | 2015-06-04 | 2015-09-23 | 宁波市镇海金腾电器有限公司 | A kind of Contiuum type stator structure |
| DE102015122848A1 (en) * | 2014-12-26 | 2016-06-30 | Johnson Electric S.A. | electric motor |
| CN107181359A (en) * | 2017-06-15 | 2017-09-19 | 深圳麦格动力技术有限公司 | Multilayer permanent magnetism off-set magnetic suspension unit, magnetic suspension motor and domestic air conditioning |
| CN207968134U (en) * | 2018-02-02 | 2018-10-12 | 苏州麦格奈迪磁悬浮技术有限公司 | Laminated motor case and magnetic suspension motor |
-
2018
- 2018-02-02 CN CN201810104038.1A patent/CN108092446B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2528923A1 (en) * | 1982-06-17 | 1983-12-23 | Europ Propulsion | MAGNETIC SUSPENSION DEVICE OF A ROTOR PLACED IN A SEALED ENCLOSURE |
| CN1833345A (en) * | 2003-07-10 | 2006-09-13 | 磁应用股份有限公司 | Compact high power alternator |
| CN102792556A (en) * | 2009-11-06 | 2012-11-21 | 阿特拉斯·科普柯空气动力股份有限公司 | Laminated core for a combined radial-axial magnetic bearing and method for constructing such a laminated core |
| CN104295604A (en) * | 2014-10-15 | 2015-01-21 | 西安交通大学 | Hybrid biased radial magnetic suspension bearing |
| DE102015122848A1 (en) * | 2014-12-26 | 2016-06-30 | Johnson Electric S.A. | electric motor |
| CN204669104U (en) * | 2015-06-04 | 2015-09-23 | 宁波市镇海金腾电器有限公司 | A kind of Contiuum type stator structure |
| CN107181359A (en) * | 2017-06-15 | 2017-09-19 | 深圳麦格动力技术有限公司 | Multilayer permanent magnetism off-set magnetic suspension unit, magnetic suspension motor and domestic air conditioning |
| CN207968134U (en) * | 2018-02-02 | 2018-10-12 | 苏州麦格奈迪磁悬浮技术有限公司 | Laminated motor case and magnetic suspension motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108092446A (en) | 2018-05-29 |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200703 Address after: 100095 Unit 301-B146, Building 17, No. 3 Gaolizhang Road, Haidian District, Beijing Applicant after: Beijing Kuntengmig Technology Co.,Ltd. Address before: 215151 Room 203, 2 building, 148 business building, 148 Hwang Road, hi tech Zone, Jiangsu. Applicant before: SUZHOU MAIGE NAIDI MAGNETIC SUSPENSION TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20240115 Address after: Room 1612-06, Building 3, Skywing Business Center, No. 133 Hongtai Road, Shangcheng District, Hangzhou City, Zhejiang Province, 310009 Patentee after: Hangzhou Kuntai Maglev Technology Co.,Ltd. Address before: Room 301-B146, Unit 1, Building 17, Yard 3, Gaolizhang Road, Haidian District, Beijing 100095 Patentee before: Beijing Kuntengmig Technology Co.,Ltd. |