CN108183571B - Magnetic suspension motor shell and magnetic suspension motor - Google Patents
Magnetic suspension motor shell and magnetic suspension motor Download PDFInfo
- Publication number
- CN108183571B CN108183571B CN201810006472.6A CN201810006472A CN108183571B CN 108183571 B CN108183571 B CN 108183571B CN 201810006472 A CN201810006472 A CN 201810006472A CN 108183571 B CN108183571 B CN 108183571B
- Authority
- CN
- China
- Prior art keywords
- shell body
- bearing support
- shell
- motor
- mounting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 24
- 230000017525 heat dissipation Effects 0.000 claims description 10
- 239000000523 sample Substances 0.000 claims description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 229910000861 Mg alloy Inorganic materials 0.000 claims description 4
- 238000005339 levitation Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010354 integration 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
- 230000005855 radiation Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding 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
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention relates to the technical field of magnetic suspension motors, in particular to a magnetic suspension motor shell and a magnetic suspension motor, wherein the shell comprises a shell body and a bearing support which is arranged in the shell body and is used for fixing a permanent magnet offset radial magnetic bearing, and the shell body and the bearing support are of an integrated structure; the casing body is tubular structure, and the one end of casing body is located to the bearing support, and the other end of casing body is provided with motor stator mounting structure. The shell provided by the invention has the advantages that the shell body and the bearing support are arranged into an integrated structure, the structure of the motor is simplified, the permanent magnet offset radial magnetic suspension bearing is fixed on the bearing support when the motor adopting the shell is assembled, the fixation of the bearing support and the shell body is omitted, and the assembly process is simplified. In addition, in terms of mechanical design, the bearing support and the shell body are integrally formed, so that a size chain is simplified, and error transmission is reduced.
Description
Technical Field
The invention relates to the technical field of magnetic suspension motors, in particular to a magnetic suspension 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 generally comprises a shell, a rotor, a stator and a magnetic suspension bearing, wherein an installation space is arranged in the shell, and the rotor, the stator and the magnetic suspension bearing are fixed in the installation space of the shell in a bonding, screw and other fixing modes. In particular, the permanent magnet bias magnetic bearing is usually fixed by a bearing support, and the bearing support and the shell are further fixed by installation, so that more parts and complicated installation operation are required.
Disclosure of Invention
First, the technical problem to be solved
The invention aims to provide an integral motor shell which solves the problem of more motor parts in the prior art.
(II) technical scheme
In order to solve the technical problems, the invention provides a magnetic suspension motor shell, which comprises a shell body and a bearing support arranged in the shell body and used for fixing a permanent magnet offset radial magnetic bearing, wherein the shell body and the bearing support are of an integrated structure;
the casing body is tubular structure, the bearing support is located the one end of casing body, the other end of casing body is provided with the motor stator mounting structure that is used for installing motor stator.
According to the invention, the shell is provided with the heat dissipation holes.
According to the invention, the heat dissipation hole is arranged between the casing body and the bearing support.
According to the invention, the bearing support comprises an annular outer wall coaxial with the shell body and a mounting plate positioned on the circular section of the annular outer wall, wherein a through hole for a rotating shaft to pass through is formed in the core of the mounting plate; and a plurality of mounting holes are formed between the mounting plate and the annular outer wall at intervals along the circumferential direction and are used for embedding the block permanent magnets.
According to the invention, the diameter of the through hole is smaller than the diameter of an annular hole formed between a plurality of magnetic poles to be mounted.
According to the invention, the inner ring of the mounting plate is provided with a plurality of grooves, each groove is internally provided with a sensor probe, and the end face of the sensor probe, which faces the core part of the mounting plate, is positioned inside the groove.
According to the invention, the shell is made of magnesium alloy or aluminum alloy.
According to the invention, the motor stator mounting structure is a motor stator mounting step arranged on the inner wall of the shell body.
The invention also provides a magnetic suspension motor, which comprises two shells, wherein one ends of the two shells, provided with motor stator mounting structures, are fixedly connected.
(III) beneficial effects
Compared with the prior art, the technical scheme of the invention has the following advantages: the shell provided by the invention has the advantages that the shell body and the bearing support are arranged into an integrated structure, the structure of the motor is simplified, the permanent magnet offset radial magnetic suspension bearing is fixed on the bearing support when the motor adopting the shell is assembled, the fixation of the bearing support and the shell body is omitted, and the assembly process is simplified. In addition, in terms of mechanical design, the bearing support and the shell body are integrally formed, so that a size chain is simplified, and error transmission is reduced. The installation and the positioning of each part of the magnetic suspension bearing are firmer, and unnecessary vibration is reduced.
Drawings
FIG. 1 is a schematic view of a casing according to an embodiment of the present invention;
FIG. 2 is an exploded view of a housing with a permanent magnet biased radial magnetic bearing provided by an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a housing with a permanent magnet biased radial magnetic bearing provided by an embodiment of the present invention;
fig. 4 is a schematic diagram of a motor according to an embodiment of the present invention.
In the figure: 1: a housing body; 2: a bearing support; 3: a motor stator mounting step; 4: a heat radiation hole; 5: an annular outer wall; 6: a mounting plate; 7: a mounting hole; 8: a first magnetizer; 9: a second magnetizer; 10: permanent magnets.
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 and fig. 2, the magnetic suspension motor casing provided by the embodiment of the invention comprises a casing body 1 and a bearing support 2 arranged in the casing body 1 and used for fixing a permanent magnet offset radial magnetic bearing, wherein the casing body 1 and the bearing support 2 are of an integrated structure; the casing body 1 is tubular structure, and the one end of casing body 1 is located to bearing support 2, and the other end of casing body 1 is provided with the motor stator mounting structure that is used for installing motor stator. In this embodiment, the motor stator mounting structure is preferably a motor stator mounting step 3 disposed on the inner wall of the casing, and may be other structures such as a protrusion that may be used for positioning and fixing the motor stator. The shell provided by the invention has the advantages that the shell body 1 and the bearing support 2 are arranged into an integrated structure, the structure of the motor is simplified, the permanent magnet offset radial magnetic suspension bearing is fixed on the bearing support 2 when the motor adopting the shell is assembled, the fixation of the bearing support 2 and the shell body 1 is omitted, and the assembly process is simplified. In terms of mechanical design, the bearing support 2 and the shell body 1 are integrally formed, so that a size chain is simplified, and error transmission is reduced. The installation and the positioning of each part of the magnetic suspension bearing are firmer, and unnecessary vibration is reduced.
Preferably, in this embodiment, the casing is provided with a heat dissipation hole 4, so as to dissipate heat generated in the working process of the motor, and ensure the normal working of the motor. Further, the heat dissipation hole 4 in the present embodiment is provided between the housing body 1 and the bearing mount 2. The heat dissipation holes 4 are formed between the casing body 1 and the bearing support 2 to reasonably utilize the space, the formed heat dissipation holes 4 play a role in heat dissipation, and under the condition that the casing body 1 and the bearing support 2 are firmly connected by the connecting plates between the heat dissipation holes 4, the weight of the casing is reduced.
Preferably, the bearing support 2 in this embodiment comprises an annular outer wall 5 coaxial with the housing body 1 and a mounting plate 6 on the circular cross section of the annular outer wall 5, the core of the mounting plate 6 being provided with a through hole for the shaft to pass through; a plurality of mounting holes 7 are arranged between the mounting plate 6 and the annular outer wall 5 at intervals along the circumferential direction and are used for embedding the segmented permanent magnets 10. The block permanent magnet 10 is directly fixed in the mounting hole 7, so that the mounting and positioning are firmer, and unnecessary vibration is reduced. As shown in fig. 2, the first magnetizer 8 and the second magnetizer 9 are separately arranged at two sides of the mounting plate 6, the outer ring of the first magnetizer 8 is adhered to the inner side surface of the annular outer wall 5, and the permanent magnet 10 is arranged in the mounting hole 7 and connected with the first magnetizer 8 and the second magnetizer 9.
Preferably, as shown in fig. 3, the diameter a of the through hole in the present embodiment is smaller than the diameter b of the annular hole formed between the plurality of magnetic poles to be mounted. In this embodiment, the through hole of the mounting plate 6 has a smaller diameter, so that the motor can be used as a protection bearing of the rotating shaft at the same time, and the motor does not need to be additionally provided with the protection bearing, thereby reducing parts.
Preferably, the inner ring of the mounting plate 6 in this embodiment is provided with a plurality of grooves (not shown in the drawings), each of which is provided with a sensor probe therein, and the end face of the sensor probe facing the core of the mounting plate 6 is located inside the groove. The mounting plate 6 is used as a support of the sensor at the same time, so that the integration level is higher.
Preferably, the casing is made of magnesium alloy or aluminum alloy in the embodiment. The adoption of the aluminum alloy or the magnesium alloy ensures the strength of the shell and the light weight of the motor.
The invention also provides a magnetic suspension motor, which comprises two shells as shown in fig. 4, wherein one ends of the two shells, provided with motor stator mounting structures, are fixedly connected. In this embodiment, the motor stator mounting structure is a motor stator mounting step 3, and the motor stator is disposed between the mounting steps of the two casing bodies.
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 (8)
1. The utility model provides a magnetic suspension motor casing which characterized in that: the permanent magnet bias radial magnetic bearing comprises a shell body and a bearing support which is arranged in the shell body and is used for fixing a permanent magnet bias radial magnetic bearing, wherein the shell body and the bearing support are of an integrated structure;
the shell body is of a cylindrical structure, the bearing support is arranged at one end of the shell body, and a motor stator mounting structure for mounting a motor stator is arranged at the other end of the shell body;
the bearing support comprises an annular outer wall coaxial with the shell body and a mounting plate positioned on the circular section of the annular outer wall, and a through hole for a rotating shaft to pass through is formed in the core of the mounting plate; and a plurality of mounting holes are formed between the mounting plate and the annular outer wall at intervals along the circumferential direction and are used for embedding the block permanent magnets.
2. The enclosure of claim 1, wherein: and the shell is provided with a heat dissipation hole.
3. A housing as claimed in claim 2, wherein: the heat dissipation hole is arranged between the shell body and the bearing support.
4. The enclosure of claim 1, wherein: the diameter of the through hole is smaller than the diameter of an annular hole formed between a plurality of magnetic poles to be mounted.
5. The enclosure of claim 1 or 4, wherein: the inner ring of mounting panel is provided with a plurality of recesses, every all be provided with sensor probe in the recess, just sensor probe orientation the terminal surface of mounting panel core is located inside the recess.
6. The enclosure of claim 1, wherein: the shell is made of magnesium alloy or aluminum alloy.
7. The enclosure of claim 1, wherein: the motor stator mounting structure is a motor stator mounting step arranged on the inner wall of the shell body.
8. A magnetic levitation motor, characterized in that: comprising two housings according to any one of claims 1-7, which are fixedly connected at their ends provided with motor stator mounting structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810006472.6A CN108183571B (en) | 2018-01-04 | 2018-01-04 | Magnetic suspension motor shell and magnetic suspension motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810006472.6A CN108183571B (en) | 2018-01-04 | 2018-01-04 | Magnetic suspension motor shell and magnetic suspension motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108183571A CN108183571A (en) | 2018-06-19 |
| CN108183571B true CN108183571B (en) | 2024-03-26 |
Family
ID=62549783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810006472.6A Active CN108183571B (en) | 2018-01-04 | 2018-01-04 | Magnetic suspension motor shell and magnetic suspension motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108183571B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113285558B (en) * | 2021-04-22 | 2022-04-29 | 东南大学 | Bias magnetic field adjustable force balance type stator permanent magnet motor magnetic bearing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1852005A (en) * | 2006-04-30 | 2006-10-25 | 南京航空航天大学 | Super-high-speed high-power magnetic-suspension main-shaft motor |
| CN101217240A (en) * | 2008-01-04 | 2008-07-09 | 洛阳轴研科技股份有限公司 | An electric spindle design adopting air static pressure anti-thrusting and electromagnetism radical bearing support |
| CN106505780A (en) * | 2016-12-15 | 2017-03-15 | 南通金驰机电有限公司 | A kind of magnetic suspension permanent magnet direct-drive high-speed motor |
| CN107093938A (en) * | 2017-06-15 | 2017-08-25 | 深圳麦格动力技术有限公司 | Magnetic suspension motor and domestic air conditioning |
| 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 |
| CN207968131U (en) * | 2018-01-04 | 2018-10-12 | 苏州麦格奈迪磁悬浮技术有限公司 | A kind of magnetic suspension motor casing and magnetic suspension motor |
-
2018
- 2018-01-04 CN CN201810006472.6A patent/CN108183571B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1852005A (en) * | 2006-04-30 | 2006-10-25 | 南京航空航天大学 | Super-high-speed high-power magnetic-suspension main-shaft motor |
| CN101217240A (en) * | 2008-01-04 | 2008-07-09 | 洛阳轴研科技股份有限公司 | An electric spindle design adopting air static pressure anti-thrusting and electromagnetism radical bearing support |
| CN106505780A (en) * | 2016-12-15 | 2017-03-15 | 南通金驰机电有限公司 | A kind of magnetic suspension permanent magnet direct-drive high-speed motor |
| CN107093938A (en) * | 2017-06-15 | 2017-08-25 | 深圳麦格动力技术有限公司 | Magnetic suspension motor and domestic air conditioning |
| 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 |
| CN207968131U (en) * | 2018-01-04 | 2018-10-12 | 苏州麦格奈迪磁悬浮技术有限公司 | A kind of magnetic suspension motor casing and magnetic suspension motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108183571A (en) | 2018-06-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107181359B (en) | Multilayer permanent magnet bias magnetic suspension unit, magnetic suspension motor and household air conditioner | |
| CN107124069B (en) | Magnetic suspension rotor supporting system, magnetic suspension motor and dust collector | |
| US9673678B2 (en) | Motor | |
| CN108518347B (en) | Integrated axial suspension permanent magnet synchronous shielding pump | |
| EP2518864A2 (en) | Synchronous brushless multipolar machine having immobile armature and field windings | |
| WO2018228262A1 (en) | Rotary shaft protection and radial displacement detection structure, magnetic suspension motor and household air conditioner | |
| CN108183571B (en) | Magnetic suspension motor shell and magnetic suspension motor | |
| JP2014176111A (en) | Motor | |
| CN107093938B (en) | Magnetic suspension motor and household air conditioner | |
| JP2015006072A (en) | Rotary electric machine, rotation load combination device and air conditioner having rotation load combination device | |
| CN107093939B (en) | Magnetic suspension motor and dust collector | |
| JP2012191734A (en) | Motor | |
| CN112510949A (en) | No yoke stator module and axial permanent magnetism wheel hub formula motor | |
| CN207968131U (en) | A kind of magnetic suspension motor casing and magnetic suspension motor | |
| US20230163661A1 (en) | Blower motor | |
| CN104079090A (en) | Rotor assembly provided with rotor magnet ring | |
| CN108370192B (en) | Motor with a stator having a stator core | |
| CN112491246B (en) | Magnetic adjusting ring component, magnetic gear, corresponding assembling method and composite motor | |
| CN213575188U (en) | Permanent magnet bias type magnetic suspension bearing and motor | |
| JP2002247798A (en) | Fan motor | |
| CN209671523U (en) | A kind of permanent magnetism mounting structure of energy accumulation device for fly wheel | |
| CN111628584A (en) | Dust collector motor and assembling method thereof | |
| CN215071956U (en) | Low-noise and low-vibration motor | |
| CN111509914A (en) | External rotation type motor structure | |
| CN212210623U (en) | Motor of dust collector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200708 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 Hwang Road, Suzhou hi tech Zone, Suzhou, Jiangsu Applicant before: SUZHOU MAIGE NAIDI MAGNETIC SUSPENSION TECHNOLOGY Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240611 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. Country or region after: China Address before: Room 301-B146, Unit 1, Building 17, Yard 3, Gaolizhang Road, Haidian District, Beijing 100095 Patentee before: Beijing Kuntengmig Technology Co.,Ltd. Country or region before: China |