CN105356634B - Isolate the compound seal sheath of rotor in magnetic suspension motor - Google Patents
Isolate the compound seal sheath of rotor in magnetic suspension motor Download PDFInfo
- Publication number
- CN105356634B CN105356634B CN201510907088.XA CN201510907088A CN105356634B CN 105356634 B CN105356634 B CN 105356634B CN 201510907088 A CN201510907088 A CN 201510907088A CN 105356634 B CN105356634 B CN 105356634B
- Authority
- CN
- China
- Prior art keywords
- sheath
- rotor
- magnetic suspension
- suspension motor
- compound seal
- 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
Landscapes
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses the compound seal sheath for isolating rotor in a kind of magnetic suspension motor, the sheath is located in magnetic suspension motor between rotor and stator, the sheath has the body of a tubbiness, some mounting grooves are evenly equipped with the circumferential wall of the body, the sheath soft iron formed by some silicon steel plate stackings is inlaid with each mounting groove, axial direction of the mounting groove along body is set.Jacket thickness of the present invention does not influence magnetic circuit, can be made very thick in the case where not influenceing air gap, so as to obtain more preferable rigidity.
Description
Technical field：
The present invention relates to the compound seal shield for isolating rotor in a kind of magnetic suspension motor, more particularly to a kind of magnetic suspension motor
Set.
Background technology：
It is a kind of sealing means for being used for magnetic suspension bearing to isolate rotor structure, i.e., one is set between rotor and stator
Sheath.Existing jacket structure such as Fig. 1.Isolate rotor structure compared with other shaft seal structures, be entirely quiet close in the sealing structure
Envelope, without dynamic sealing, so good sealing effect, cost are low, long lifespan；And in addition to rotor and sheath other parts not by
Influenceed by sealing fluid, it is not necessary to do specially treated.But isolate rotor structure there is also the following defect, especially in magnetic
It is especially prominent when being applied on floatation electric motor：
1) because the magnetic field of magnetic bearing and motor needs to penetrate sheath, do not led in order to avoid producing general select of vortex sheath
The nonmetallic materials of electricity, such as epoxy resin, fiberglass, and most of nonmetallic intensity and rigidity be all than relatively low, therefore protect
It is thick that set must be made comparison.
2) because, across thicker sheath, air gap thickness can increase several times, therefore motor gas-gap leakage field between stator rotor
Increase, electric efficiency and peak torque all decrease.
3) because, also across thicker sheath, magnetic pole gap can increase by ten times even between magnetic bearing iron core and rotor soft iron
Tens times, it is therefore desirable to identical magnetic force could be obtained by much bigger electric current in coil, magnetic bearing power consumption and volume are all
Greatly increase.
Isolate the problem of rotor structure is present, it is necessary to which a kind of vortex is low, it is preferably close not influence air gap, rigidity to overcome
Closure set.Single material is difficult to meet these requirements simultaneously.Base material not only needs to meet anticorrosive in conventional hermetic sheath
With the function of sealing, it is also necessary to support sheath in order to avoid deforming under pressure.Therefore often use high polymer material, as resin,
Fiberglass etc. is used as base material, while using high polymer material corrosion resistance characteristic, meets that stiffness of sheath will by increasing thickness S
Ask, but now the thickness S of sheath is exactly the incrementss of rotor air gap.
Therefore, it is necessory to be improved to prior art to solve the deficiency of prior art.
The content of the invention：
The present invention is to provide in a kind of magnetic suspension motor in order to solve the above-mentioned problems of the prior art and isolate rotor
Compound seal sheath.
The technical solution adopted in the present invention has：Isolate the compound seal sheath of rotor, the shield in a kind of magnetic suspension motor
It is sheathed in magnetic suspension motor between rotor and stator, the sheath has the body of a tubbiness, in the circumferential wall of the body
Some mounting grooves are evenly equipped with, the sheath soft iron formed by some silicon steel plate stackings, the peace are inlaid with each mounting groove
Axial direction of the tankage along body is set.
Further, the body is made of high polymer material.
The present invention has the advantages that：
1) jacket thickness of the present invention does not influence magnetic circuit, can be made very thick in the case where not influenceing air gap, so as to obtain
More preferable rigidity；
2) the base material undercoating between sheath soft iron and sheath body can be made very thin, the influence very little to air gap；
3) presence of sheath soft iron improves stator rabbet width, is easy to stator winding.
Brief description of the drawings：
Fig. 1 is jacket structure figure in the prior art.
Fig. 2 is structure chart of the present invention.
Fig. 3 is installation diagram of the present invention in magnetic suspension motor.
Embodiment：
The present invention is further illustrated below in conjunction with the accompanying drawings.
As shown in Fig. 2 isolating the compound seal sheath of rotor in magnetic suspension motor of the present invention, the sheath is located at magnetic suspension electricity
In machine between rotor 3 and stator 4, the sheath has the body 1 of a tubbiness, and the body 1 is made of high polymer material.At this
Some mounting grooves (not marked in figure) are evenly equipped with the circumferential wall of body 1, axial direction of the mounting groove along body 1 is set.Each
The sheath soft iron 2 formed by some silicon steel plate stackings is inlaid with mounting groove.
In compound seal sheath, body 1 is inlaid with sheath soft iron 2 along pole orientation, and stator field can pass through shield
Set soft iron 2 is conducted to the inside of body 1 from outer surface, and now the incrementss of stator rotor airgap are only dependent upon sheath soft iron 2 and pacified
The thickness h of substrate coating on the inside of tankage, it is unrelated with sheath gross thickness S.Therefore compound seal sheath of the present invention can be in not shadow
It is made very thick in the case of ringing air gap, so as to obtain more preferable rigidity.
Simultaneously because the substrate coating of the inner side of sheath soft iron 2 only plays isolation and corrosion-resisting function, therefore thickness h can be done
Obtain very thin.Therefore the influence to stator rotor and magnetic bearing air gap can substantially reduce.
Such as Fig. 3, it is necessary to align and contact sheath soft iron 2 with stator tooth when composite jacket of the present invention loads in stator 4,
So as to magnetic flux.Now stator 4 can play extra supporting role to composite jacket of the present invention, improve the rigidity of sheath；
The presence of sheath soft iron 2 shortens the length of stator tooth simultaneously, makes the increase of stator slot width of rebate, can facilitate stator around
Line.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, some improvement can also be made under the premise without departing from the principles of the invention, and these improvement also should be regarded as the present invention's
Protection domain.
Claims (2)
1. isolating the compound seal sheath of rotor in a kind of magnetic suspension motor, the sheath is located at rotor and stator in magnetic suspension motor
Between, it is characterised in that：The sheath has the body (1) of a tubbiness, and some peaces are evenly equipped with the circumferential wall of the body (1)
Tankage, is inlaid with the sheath soft iron (2) formed by some silicon steel plate stackings in each mounting groove, and the mounting groove is along body
(1) axial direction is set.
2. isolate the compound seal sheath of rotor in magnetic suspension motor as claimed in claim 1, it is characterised in that：The body
(1) it is made of high polymer material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510907088.XA CN105356634B (en) | 2015-12-09 | 2015-12-09 | Isolate the compound seal sheath of rotor in magnetic suspension motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510907088.XA CN105356634B (en) | 2015-12-09 | 2015-12-09 | Isolate the compound seal sheath of rotor in magnetic suspension motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105356634A CN105356634A (en) | 2016-02-24 |
| CN105356634B true CN105356634B (en) | 2018-03-16 |
Family
ID=55332537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510907088.XA Active CN105356634B (en) | 2015-12-09 | 2015-12-09 | Isolate the compound seal sheath of rotor in magnetic suspension motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105356634B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101207309A (en) * | 2007-12-07 | 2008-06-25 | 沈阳工业大学 | High speed magnetic suspension permanent magnet motor without bearing |
| CN101316057A (en) * | 2008-06-04 | 2008-12-03 | 哈尔滨理工大学 | High speed permanent magnet motor rotor |
| KR20090070193A (en) * | 2007-12-27 | 2009-07-01 | 한국전기연구원 | Rotor for high speed permanent magnet machine |
| CN102104289A (en) * | 2011-03-15 | 2011-06-22 | 浙江大学 | Permanent-magnet motor rotor |
| CN205178677U (en) * | 2015-12-09 | 2016-04-20 | 南京磁谷科技有限公司 | Compound seal sheath of keeping apart rotor among magnetic levitation motor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080238234A1 (en) * | 2007-03-27 | 2008-10-02 | Hamilton Sundstrand Corporation | Segmented permanent magnet rotor for high speed synchronous machines |
-
2015
- 2015-12-09 CN CN201510907088.XA patent/CN105356634B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101207309A (en) * | 2007-12-07 | 2008-06-25 | 沈阳工业大学 | High speed magnetic suspension permanent magnet motor without bearing |
| KR20090070193A (en) * | 2007-12-27 | 2009-07-01 | 한국전기연구원 | Rotor for high speed permanent magnet machine |
| CN101316057A (en) * | 2008-06-04 | 2008-12-03 | 哈尔滨理工大学 | High speed permanent magnet motor rotor |
| CN102104289A (en) * | 2011-03-15 | 2011-06-22 | 浙江大学 | Permanent-magnet motor rotor |
| CN205178677U (en) * | 2015-12-09 | 2016-04-20 | 南京磁谷科技有限公司 | Compound seal sheath of keeping apart rotor among magnetic levitation motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105356634A (en) | 2016-02-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207559710U (en) | The rotor assembly and disc type electric machine of disc type electric machine | |
| US11031838B2 (en) | Housing unit for an electric machine | |
| JPWO2011114594A1 (en) | Permanent magnet type rotating electric machine | |
| CN103219814A (en) | Asynchronous starting permanent magnet synchronous motor rotor based on permanent magnets with different residual magnetic densities | |
| CN204168098U (en) | Permanent-magnetic synchronous motor rotor | |
| CN107872111A (en) | A kind of high intensity sandwich pole wheel of Double-stator axial magnetic flow magneto | |
| CN1909340A (en) | Synergy permanent-magnet-field generator | |
| CN109347227A (en) | A kind of composite rotors structure for high-speed permanent magnet motor | |
| US10461597B2 (en) | Winding structure for high power density, axial field motor | |
| CN105356634B (en) | Isolate the compound seal sheath of rotor in magnetic suspension motor | |
| CN205178677U (en) | Compound seal sheath of keeping apart rotor among magnetic levitation motor | |
| CN104184284B (en) | Double magnetic circuit asynchronous starting permanent magnet synchronous motor rotor | |
| CN101446291B (en) | High-efficiency shield pump | |
| CN210225085U (en) | Permanent magnet motor rotor structure for enhancing shielding effect of harmonic magnetic field | |
| US20150155766A1 (en) | High Slip Variable Frequency Induction Motors | |
| CN102522835B (en) | Brushless direct current permanent magnet motor having characteristics of low noise, low vibration and low temperature rise and assembly technology thereof | |
| CN208226685U (en) | A kind of magnet | |
| CN210327229U (en) | Low energy consumption immersion type submersible motor | |
| CN203896156U (en) | Asynchronous starting three-phase permanent-magnet synchronous motor structure | |
| CN207573110U (en) | Structure of mover and with its motor | |
| JP2001037144A (en) | Submersible motor | |
| CN220122661U (en) | Permanent magnet synchronous motor rotor structure | |
| CN202326382U (en) | Solid composite rotor for shielding pump | |
| CN204517616U (en) | A kind of asynchronous starting permanent magnet synchronous motor and solid rotor structure thereof | |
| CN220492708U (en) | Stator structure of magnetic yoke-free modularized axial flux motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 211102 No.99, Jinxin Middle Road, Jiangning District, Nanjing City, Jiangsu Province Patentee after: Nanjing Cigu Technology Co., Ltd Address before: Nine No. 211102 Bamboo Road, Jiangning Development Zone, Nanjing, Jiangsu, 100 Patentee before: NANJING CIGU LIMITED Corp. |