CN206850593U - Multilayer permanent magnetism off-set magnetic suspension unit, magnetic suspension motor and domestic air conditioning - Google Patents
Multilayer permanent magnetism off-set magnetic suspension unit, magnetic suspension motor and domestic air conditioning Download PDFInfo
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- CN206850593U CN206850593U CN201720698058.7U CN201720698058U CN206850593U CN 206850593 U CN206850593 U CN 206850593U CN 201720698058 U CN201720698058 U CN 201720698058U CN 206850593 U CN206850593 U CN 206850593U
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Abstract
It the utility model is related to magnetic levitation technology field, more particularly to multilayer permanent magnetism off-set magnetic suspension unit, magnetic suspension motor and domestic air conditioning.Multilayer permanent magnetism off-set magnetic suspension unit includes permanent magnet offset radial magnetic bearing and plays floating ring, the permanent magnet offset radial magnetic bearing includes at least two layers magnetic conductor be arrangeding in parallel, the inside of at least one magnetic conductor is provided with multiple first magnetic poles, each first magnetic pole is wound with the first magnetizing coil, permanent magnet is provided between magnetic conductor described in adjacent two layers, described floating ring is located in the space that the permanent magnet between magnetic conductor described in adjacent two layers and two layers of magnetic conductor is collectively forming.Multilayer permanent magnetism off-set magnetic suspension unit provided by the utility model is arranged on floating ring is played in the two neighboring magnetic conductor of permanent magnet offset radial magnetic bearing and the space of permanent magnet formation, make full use of space, play floating ring and form component with permanent magnet offset radial magnetic bearing, so that the structure of magnetic suspension motor is compacter, and it is easy to assemble.
Description
Technical field
It the utility model is related to magnetic levitation technology field, more particularly to multilayer permanent magnetism off-set magnetic suspension unit, magnetic suspension electricity
Machine and domestic air conditioning.
Background technology
Miniature motor is the most common form for converting electrical energy into mechanical energy, is had in household electrical appliance and industrial circle
It is widely applied.Traditional motor mainly includes motor stator portion, rotor part, rotor supports bearing and casing
Part, coupled between motor stator portion and rotor part by mechanical bearing or Mechanical Contact be present, therefore electronics turns
Mechanical friction be present in sub- motion process.Mechanical friction not only increases the frictional resistance of rotor, wears moving component, produces machine
Tool vibrates and noise, and part can be caused to generate heat, and makes lubricant degradation, and serious meeting makes motor gas-gap uneven, around
Group heating, temperature rise increase are final to shorten motor service life so as to reduce motor efficiency.And mechanical bearing needs lubricating oil
To maintain, so electrical machinery life was not only influenceed but also had been unfavorable for the cleaning of equipment, therefore, in order to realize ultrahigh rotating speed operation and equipment
Long-life, cleaning oil-free must use contactless supporting way, i.e. magnetic suspension supporting way in the motor.
The support of existing magnetic suspension motor armature spindle usually require radial magnetic bearing, radial displacement transducer and
Play floating ring to complete jointly, radial magnetic bearing, radial displacement transducer and a floating ring are distributed on armature spindle side by side.Permanent magnetism
Bias radial direction magnetic bearing is the relatively low radial magnetic bearing of a kind of consumption power, and the two of permanent magnet offset radial magnetic bearing leads side by side
The permanent magnet of setting one fixed width is needed between magnetic sheet, in order to reduce motor size, it will usually reduce the width of permanent magnet, still
The distance between two pieces of magnetic conductive boards are too small to cause that permanent magnet demagnetizes and the leakage field of magnetic bearing, excessive permanent magnet width can show
Write the overall volume of increase magnetic suspension motor.
Utility model content
(1) technical problems to be solved
The technical problems to be solved in the utility model is that solve permanent magnet offset radial magnetcisuspension in prior art magnetic suspension motor
Floating axle is held and its accessory axial occupation space is big, increases magnetic suspension motor overall volume problem.
(2) technical scheme
In order to solve the above-mentioned technical problem, the utility model provides a kind of multilayer permanent magnetism off-set magnetic suspension unit, including
Permanent magnet offset radial magnetic bearing and a floating ring, the permanent magnet offset radial magnetic bearing include at least two layers magnetic conduction be arrangeding in parallel
Body, the inside of at least one magnetic conductor are provided with multiple first magnetic poles, and each first magnetic pole is wound with the first magnetizing coil,
Permanent magnet is provided between magnetic conductor described in adjacent two layers, described floating ring is located at magnetic conductor described in adjacent two layers with being led described in two layers
In the space that permanent magnet between magnet is collectively forming.
According to the utility model, the outer ring of described floating ring is connected with the permanent magnet, and the inner ring of described floating ring is set
There are multiple grooves, sensor probe is provided with each groove, and the sensor probe is risen in floating ring towards described
The end face of side is located at the inside grooves.
According to the utility model, the permanent magnet includes multiple permanent magnets, the permanent magnets and of first magnetic pole
Number is identical, and the position of multiple permanent magnets circumferentially corresponds with multiple first magnetic poles.
According to the utility model, the permanent magnet between magnetic conductor described in adjacent two layers and two layers of magnetic conductor is formed
Space in be additionally provided with radial displacement transducer, the radial displacement transducer includes sensor base and sensor probe,
The outer ring of the sensor base is connected with the permanent magnet, and described floating ring is embedded in the sensor base inner ring, the biography
Sensor base is provided with multiple mounting blocks towards the magnetic conductor side for being provided with the first magnetic pole, and the sensor probe is fixed on mounting blocks
On, and each mounting blocks are respectively positioned between two neighboring first magnetic pole.
According to the utility model, the permanent magnet offset radial magnetic bearing includes two layers of magnetic conductor be arrangeding in parallel.
According to the utility model, two layers of magnetic conductor is respectively the first magnetic conductor and the second magnetic conductor, and described first leads
Multiple first magnetic poles are provided with inside magnet, second magnetic conductor is magnetic conductive board.
According to the utility model, side of second magnetic conductor away from first magnetic conductor is connected with the 3rd magnetic conduction
Body, second magnetic conductor and the 3rd magnetic conductor form annular space, and are provided with the second magnetizing coil in the annular space；Institute
State the second magnetic conductor, the 3rd magnetic conductor and second magnetizing coil and form axial magnetic bearing.
The utility model additionally provides a kind of magnetic suspension motor, including motor stator core, armature spindle, two it is above-mentioned more
Layer permanent magnetism off-set magnetic suspension unit and axial magnetic bearing, the rotor axle sleeve are located at two multilayer permanent magnetism off-set magnetic suspensions
In unit and motor stator core, and the motor stator core is arranged on two multilayer permanent magnetism off-set magnetic suspension units
Between；The armature spindle is provided with the thrust disc coordinated with the axial magnetic bearing；Also include being used to detect the rotor diameter of axle
Radial displacement transducer to displacement and the shaft position sensor for detecting the armature spindle axial displacement.
According to the utility model, the permanent magnet offset radial magnetic bearing of the multilayer permanent magnetism off-set magnetic suspension unit includes two layers
The magnetic conductor, two layers of magnetic conductor are respectively the first magnetic conductor and the second magnetic conductor, are provided with inside first magnetic conductor
Multiple first magnetic poles, second magnetic conductor are magnetic conductive board；One of them multilayer permanent magnetism off-set magnetic suspension unit it is described
Side of second magnetic conductor away from first magnetic conductor is connected with the 3rd magnetic conductor, second magnetic conductor and the 3rd magnetic conductor
Annular space is formed, and the second magnetizing coil is wound with the annular space；Second magnetic conductor, the 3rd magnetic conductor and
Second magnetizing coil forms the axial magnetic bearing.
According to the utility model, the radial displacement transducer includes multiple sensor probes, the outer ring of described floating ring
It is connected with the permanent magnet, the inner ring of described floating ring is provided with multiple grooves, and each sensor probe is fixed on one
In the groove, and the sensor probe is located at shown inside grooves towards the end face risen on the inside of floating ring.
According to the utility model, the armature spindle at the motor stator core cooperation with being arranged with main permanent magnet.
According to the utility model, sheath is coated with the outside of the main permanent magnet.
According to the utility model, the sheath uses carbon fibre materials.
The utility model additionally provides a kind of domestic air conditioning, including compressor, and above-mentioned magnetcisuspension is provided with the compressor
Floating motor.
(3) beneficial effect
Above-mentioned technical proposal of the present utility model has the following advantages that compared with prior art：It is provided by the utility model more
Layer permanent magnetism off-set magnetic suspension unit is arranged on adjacent two magnetic conductor and permanent magnetism of permanent magnet offset radial magnetic bearing by floating ring is played
In the space that body is formed, space is made full use of, floating ring is played and forms component with permanent magnet offset radial magnetic bearing so that magnetic suspension motor
Structure it is compacter, and be easy to assemble.In the case that overall volume is constant, the width of permanent magnet is located at compared to floating ring is played
Significantly increased when outside, armature spindle can obtain bigger magnetic force during use, reduce the demagnetization of leakage field and permanent magnet.
Brief description of the drawings
Fig. 1 is the three dimensional structure diagram for the multilayer permanent magnetism off-set magnetic suspension unit that the utility model embodiment one provides；
Fig. 2 is the sectional view for the multilayer permanent magnetism off-set magnetic suspension unit that the utility model embodiment one provides；
Fig. 3 is another structure sectional view for the multilayer permanent magnetism off-set magnetic suspension unit that the utility model embodiment one provides；
Fig. 4 is the three dimensional structure diagram for the multilayer permanent magnetism off-set magnetic suspension unit that the utility model embodiment two provides；
Fig. 5 is the sectional view for the multilayer permanent magnetism off-set magnetic suspension unit that the utility model embodiment two provides；
Fig. 6 is another structure sectional view for the multilayer permanent magnetism off-set magnetic suspension unit that the utility model embodiment two provides；
Fig. 7 is the structural representation for the magnetic suspension motor that the utility model embodiment three provides.
In figure：1：Permanent magnet offset radial magnetic bearing；11：First magnetic conductor；12：Second magnetic conductor；13：First magnetic pole；14：
First magnetizing coil；2：Play floating ring；21：Groove；22：Caulking groove；3：Sensor probe；4：Permanent magnets；5：3rd magnetic conductor；6：The
Two magnetizing coils；7：Sensor base；71：Mounting blocks；8：Motor stator core；9：Armature spindle；10：Main permanent magnet；101：Axle
To sensor.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched
The embodiment stated is part of the embodiment of the present utility model, rather than whole embodiments.Based on the reality in the utility model
Apply example, the every other embodiment that those of ordinary skill in the art are obtained on the premise of creative work is not made, all
Belong to the scope of the utility model protection.
Embodiment one
As depicted in figs. 1 and 2, a kind of multilayer permanent magnetism off-set magnetic suspension unit that the utility model embodiment provides, including
Permanent magnet offset radial magnetic bearing 1 and a floating ring 2, permanent magnet offset radial magnetic bearing 1 include at least two layers magnetic conduction be arrangeding in parallel
Body, the inside of at least one magnetic conductor are provided with multiple first magnetic poles 13, and each first magnetic pole is wound with the first magnetizing coil 14,
Permanent magnet is provided between adjacent two layers magnetic conductor, plays permanent magnetism of the floating ring 2 between adjacent two layers magnetic conductor and two layers of magnetic conductor
In the space that body is collectively forming.It can be mechanical bearing, graphite annulus or becket to play floating ring 2.The internal diameter for playing floating ring 2 is less than magnetic conduction
The internal diameter of body, when starting for stand-by motor armature spindle 9 float and support motor stop when armature spindle 9, stop in armature spindle 9
Play a part of support protection when only operating is fallen.Specifically, the number of the first magnetic pole 13 is 4 in the present embodiment.This practicality
The multilayer permanent magnetism off-set magnetic suspension unit that new embodiment provides is arranged on the phase of permanent magnet offset radial magnetic bearing 1 by floating ring 2 is played
In the space that adjacent two magnetic conductors are formed with permanent magnet, space is made full use of, plays floating ring 2 and the shape of permanent magnet offset radial magnetic bearing 1
Into component so that the structure of magnetic suspension motor is compacter, and is easy to assemble.In the case that overall volume is constant, permanent magnet
Width significantly increase compared to rising when a floating ring 2 is located at outside, armature spindle 9 can obtain bigger magnetic force during use, reduce leakage
The demagnetization of magnetic and permanent magnet.
Preferably, the outer ring that floating ring 2 is played in the present embodiment is connected with permanent magnet, rise floating ring 2 inner ring be provided with it is multiple recessed
Groove 21, is provided with sensor probe 3 in each groove 21, and sensor probe 3 is towards playing the end face of the inner side of floating ring 2 positioned at recessed
Inside groove 21.Specifically, the quantity of sensor probe 3 is 4, and 4 sensor probes 3 detect the positive negative directions of armature spindle 9X respectively
And the displacement of the positive negative direction of Y-axis.Sensor probe 3 is integrated on floating ring 2, a floating ring 2 plays support protection armature spindle 9 and made
By the use of while can be as sensor base 7, structure is compacter, can further reduce the overall volume of magnetic suspension motor.
Preferably, permanent magnet includes multiple permanent magnets 4 in the present embodiment, and permanent magnets 4 are identical with the number of the first magnetic pole 13, and it is multiple forever
The position of magnetic patch 4 circumferentially corresponds with multiple first magnetic poles 13.Permanent magnet is divided into polylith and only set only with first
Position corresponding to magnetic pole 13, permanent magnet material is saved, and be advantageous to the assembling of permanent magnet.It should be noted that this implementation
Permanent magnet is it can also be provided that ring-type in example.Specifically, the outer ring for playing floating ring 2 is provided with caulking groove 22, permanent magnetism in the present embodiment
Body can be directly anchored in caulking groove 22 when fixing, and structure is more firm.
Preferably, permanent magnet offset radial magnetic bearing includes two layers of magnetic conductor be arrangeding in parallel, two magnetic conductions in the present embodiment
Permanent magnet is connected between body, plays floating ring 2 in the space that two magnetic conductors are formed with permanent magnet.Specifically, the present embodiment
In two layers of magnetic conductor be respectively the first magnetic conductor 11 and the second magnetic conductor 12, the inside of the first magnetic conductor 11 is provided with multiple first magnetic poles
13, the second magnetic conductor 12 is magnetic conductive board.Second magnetic conductor 12 can reduce the volume of magnetic suspension unit from magnetic conductive board.It is preferred that
Ground, as shown in figure 3, side of second magnetic conductor 12 away from the first magnetic conductor 11 is connected with the 3rd magnetic conductor 5 in the present embodiment, the
Two magnetic conductors 12 and the 3rd magnetic conductor 5 form annular space, and the second magnetizing coil 6 is wound with annular space；Second magnetic conduction
Body 12, the 3rd magnetic conductor 5 and the second magnetic pole formation axial magnetic bearing for being wound with the second magnetizing coil 6.Axial magnetic bearing with
Permanent magnet offset radial magnetic bearing 1 shares the second magnetic conductor 12, realizes the one of axial magnetic bearing and permanent magnet offset radial magnetic bearing 1
Change, further such that electric machine structure is compact.
Embodiment two
The present embodiment two and the identical technology contents not repeated description of embodiment one, the disclosure of embodiment one are fallen within
The disclosure of the present embodiment two, the present embodiment two are that radial displacement transducer is integrated into permanent magnetism off-set magnetic suspension list by another kind
The combining structure of member：
As shown in Figure 4 and Figure 5, permanent magnet offset radial magnetic bearing adjacent two layers magnetic conductor and two layers of magnetic conductor in the present embodiment
Between the space that is formed of permanent magnet in be additionally provided with radial displacement transducer, radial displacement transducer include sensor base 7 with
And sensor probe 3, the outer ring of sensor base 7 are connected with permanent magnet, play floating ring 2 and be embedded in the inner ring of sensor base 7, sensor
Base 7 is provided with multiple mounting blocks 71 towards the magnetic conductor side provided with the first magnetic pole 13, and sensor probe 3 is fixed on mounting blocks 71
On, and each mounting blocks 71 are respectively positioned between two neighboring first magnetic pole 13.The internal diameter for playing floating ring 2 is less than sensor base 7
Internal diameter.Specifically, sensor base 7 is arranged to stepped in the present embodiment, plays the rank that floating ring 2 is fixed on sensor base 7
On tread.Sensor probe 3 is not take up the distance between two magnetic conductors between magnetic pole, and the width of a floating ring 2 is larger, can
The bearing capacity played is bigger.The multilayer permanent magnetism off-set magnetic suspension unit of the present embodiment is permanent magnet offset radial magnetic bearing 1 and axial direction
When magnetic bearing integral type is set, as shown in fig. 6, permanent magnet offset radial magnetic bearing 1 shares the second magnetic conductor 12 with axial magnetic bearing.
Embodiment three
As shown in fig. 7, a kind of magnetic suspension motor is present embodiments provided, including motor stator core 8, armature spindle 9, two
Multilayer permanent magnetism off-set magnetic suspension unit and axial magnetic bearing.Multilayer permanent magnetism off-set magnetic suspension unit includes permanent magnet offset radial magnetic
Bearing 1 and a floating ring 2, permanent magnet offset radial magnetic bearing 1 include at least two layers magnetic conductor be arrangeding in parallel, at least one magnetic conduction
The inside of body is provided with multiple first magnetic poles 13, and each first magnetic pole is wound with the first magnetizing coil 14, adjacent two layers magnetic conductor
Between be provided with permanent magnet, play the sky that is collectively forming of permanent magnet of the floating ring 2 between adjacent two layers magnetic conductor and two layers of magnetic conductor
In.Armature spindle 9 is set in two multilayer permanent magnetism off-set magnetic suspension units and motor stator core 8, and motor stator iron
Core 8 is arranged between two multilayer permanent magnetism off-set magnetic suspension units；Armature spindle 9 is provided with the thrust coordinated with axial magnetic bearing
Disk；Also include being used to detect the radial displacement transducer of the radial displacement of armature spindle 9 and for detecting the axial displacement of armature spindle 9
Shaft position sensor.Magnetic suspension motor permanent magnet offset radial magnetic bearing 1 integrates with playing floating ring 2 in the present embodiment, fills
Divide the inner space that make use of permanent magnet offset radial magnetic bearing 1, play floating ring 2 and form component with permanent magnet offset radial magnetic bearing 1, make
It is compacter to obtain the structure of magnetic suspension motor, and is easy to assemble.In the case that magnetic suspension overall volume is constant, the width of permanent magnet
Degree significantly increases when being located at outside compared to a floating ring 2, and armature spindle 9 can obtain bigger magnetic force, reduces leakage field and permanent magnetism
The demagnetization of body.
Preferably, the permanent magnet offset radial magnetic bearing of multilayer permanent magnetism off-set magnetic suspension unit is led including two layers in the present embodiment
Magnet, two layers of magnetic conductor are respectively the first magnetic conductor 11 and the second magnetic conductor 12, and the inside of the first magnetic conductor 11 is provided with multiple first
Magnetic pole 13, the second magnetic conductor 12 are magnetic conductive board；Second magnetic conductor 12 of one of multilayer permanent magnetism off-set magnetic suspension unit is remote
The side of first magnetic conductor 11 is connected with the 3rd magnetic conductor 5, and the second magnetic conductor 12 and the 3rd magnetic conductor 5 form annular space, and
The second magnetizing coil 6 is wound with annular space；Second magnetic conductor 12, the 3rd magnetic conductor 5 and it is wound with the second magnetizing coil 6
The second magnetic pole formed axial magnetic bearing.The side of magnetic suspension motor sets the permanent magnetism off-set magnetic suspension list of magnetic pole using only side
Member, opposite side use the permanent magnetism off-set magnetic suspension unit that bearing magnetic bearing is combined with permanent magnet offset radial magnetic bearing 1, overall structure
It is compacter.
Preferably, radial displacement transducer includes multiple sensor probes 3 in the present embodiment, rise floating ring 2 outer ring with forever
Magnet connects, and the inner ring for playing floating ring 2 is provided with multiple grooves 21, and each sensor probe 3 is fixed in a groove 21, and passes
Sensor probe 3 is less than the opening of groove 21 and the bottom of groove 21 towards the distance between end face and the bottom of groove 21 for playing the inner side of floating ring 2
The distance between portion.Sensor probe 3 has been integrated on floating ring 2, serve floating ring 2 rise support protection armature spindle 9 while
Sensor base 7 can be used as, structure is compacter, can further reduce the overall volume of magnetic suspension motor.
Preferably, it is provided with main permanent magnet 10 at armature spindle 9 and the cooperation of motor stator core 8 in the present embodiment.Main permanent magnet
10 form rotor assembly common rotation with armature spindle 9, the motor is turned into magneto, compared to common electric machine, main permanent magnet
10 occupy little space, and structure is compacter.Further, the outside of main permanent magnet 10 is coated with sheath in the present embodiment.Set
Sheath avoids main permanent magnet 10 from rupturing under the action of the centrifugal force, improves the service life of main permanent magnet 10.Preferably, the present embodiment
Middle sheath uses high intensity non-magnet_conductible material such as carbon fiber, 3J40, GH4169.Using high-strength low-density carbon fibre materials more
The lightweight of motor is ensure that in big degree.
Preferably, axial sensor 101 is arranged on the non-output end of armature spindle 9 in the present embodiment, saves magnetic suspension motor
Inner space.
Example IV
A kind of domestic air conditioning, including compressor are provided in the present embodiment, is provided with compressor described in embodiment three
Magnetic suspension motor.The service life of domestic air conditioning is improved, reduces noise, improves systematic function.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：
It can still modify to the technical scheme described in foregoing embodiments, or which part technical characteristic is carried out etc.
With replacement；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the utility model technology
The spirit and scope of scheme.
Claims (14)
- A kind of 1. multilayer permanent magnetism off-set magnetic suspension unit, it is characterised in that：Including permanent magnet offset radial magnetic bearing and floating ring is played, The permanent magnet offset radial magnetic bearing includes at least two layers magnetic conductor be arrangeding in parallel, and the inside of at least one magnetic conductor is set There are multiple first magnetic poles, each first magnetic pole is wound with the first magnetizing coil, is provided with forever between magnetic conductor described in adjacent two layers Magnet, described floating ring are located at the sky that the permanent magnet between magnetic conductor described in adjacent two layers and two layers of magnetic conductor is collectively forming In.
- 2. multilayer permanent magnetism off-set magnetic suspension unit according to claim 1, it is characterised in that：The outer ring of described floating ring with The permanent magnet connection, the inner ring of described floating ring are provided with multiple grooves, and sensor spy is provided with each groove Head, and the sensor probe is located at the inside grooves towards the end face risen on the inside of floating ring.
- 3. multilayer permanent magnetism off-set magnetic suspension unit according to claim 1, it is characterised in that：The permanent magnet includes multiple Permanent magnets, the permanent magnets are identical with the number of first magnetic pole, and the position of multiple permanent magnets circumferentially with it is more Individual first magnetic pole corresponds.
- 4. multilayer permanent magnetism off-set magnetic suspension unit according to claim 1, it is characterised in that：Magnetic conductor described in adjacent two layers Radial displacement transducer, the radial displacement are additionally provided with the space that the permanent magnet between two layers of magnetic conductor is formed Sensor includes sensor base and sensor probe, and the outer ring of the sensor base is connected with the permanent magnet, described Play floating ring and be embedded in the sensor base inner ring, the sensor base is provided with more towards the magnetic conductor side for being provided with the first magnetic pole Individual mounting blocks, the sensor probe are fixed on mounting blocks, and each mounting blocks are respectively positioned on two neighboring first Between magnetic pole.
- 5. multilayer permanent magnetism off-set magnetic suspension unit according to claim 1, it is characterised in that：The permanent magnet offset radial magnetic Bearing includes two layers of magnetic conductor be arrangeding in parallel.
- 6. multilayer permanent magnetism off-set magnetic suspension unit according to claim 5, it is characterised in that：Two layers of magnetic conductor difference For the first magnetic conductor and the second magnetic conductor, the first magnetic conductor inside is provided with multiple first magnetic poles, and second magnetic conductor is Magnetic conductive board.
- 7. multilayer permanent magnetism off-set magnetic suspension unit according to claim 6, it is characterised in that：Second magnetic conductor is remote The side of first magnetic conductor is connected with the 3rd magnetic conductor, and second magnetic conductor and the 3rd magnetic conductor form annular space, And the second magnetizing coil is wound with the annular space；Second magnetic conductor, the 3rd magnetic conductor and the second magnetizing coil Form axial magnetic bearing.
- A kind of 8. magnetic suspension motor, it is characterised in that：Including motor stator core, armature spindle, two it is as claimed in claim 1 Multilayer permanent magnetism off-set magnetic suspension unit and axial magnetic bearing, the rotor axle sleeve are located at two multilayer permanent magnet bias magnetcisuspensions In floating unit and motor stator core, and the motor stator core is arranged on two multilayer permanent magnetism off-set magnetic suspension lists Between member；The armature spindle is provided with the thrust disc coordinated with the axial magnetic bearing；Also include being used to detect the radial displacement transducer of the armature spindle radial displacement and for detecting the armature spindle axle To the shaft position sensor of displacement.
- 9. magnetic suspension motor according to claim 8, it is characterised in that：The multilayer permanent magnetism off-set magnetic suspension unit is forever Magnetic bias radial direction magnetic bearing includes two layers of magnetic conductor, and two layers of magnetic conductor is respectively the first magnetic conductor and the second magnetic conduction Body, the first magnetic conductor inside are provided with multiple first magnetic poles, and second magnetic conductor is magnetic conductive board；One of them described multilayer Side of second magnetic conductor of permanent magnetism off-set magnetic suspension unit away from first magnetic conductor is connected with the 3rd magnetic conductor, institute State the second magnetic conductor and the 3rd magnetic conductor forms annular space, and the second magnetizing coil is provided with the annular space；Described Two magnetic conductors, the 3rd magnetic conductor and second magnetizing coil form the axial magnetic bearing.
- 10. magnetic suspension motor according to claim 8, it is characterised in that：The radial displacement transducer includes multiple biographies Sensor is popped one's head in, and the outer ring of described floating ring is connected with the permanent magnet, and the inner ring of described floating ring is provided with multiple grooves, each The sensor probe is fixed in a groove, and the sensor probe plays the end face position on the inside of floating ring described in In shown inside grooves.
- 11. magnetic suspension motor according to claim 8, it is characterised in that：The armature spindle and the motor stator core Main permanent magnet is provided with cooperation.
- 12. magnetic suspension motor according to claim 11, it is characterised in that：Shield is coated with the outside of the main permanent magnet Set.
- 13. magnetic suspension motor according to claim 12, it is characterised in that：The sheath uses carbon fibre materials.
- A kind of 14. domestic air conditioning, it is characterised in that：It is provided with including compressor, in the compressor as claim 8-13 is any Magnetic suspension motor described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720698058.7U CN206850593U (en) | 2017-06-15 | 2017-06-15 | Multilayer permanent magnetism off-set magnetic suspension unit, magnetic suspension motor and domestic air conditioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720698058.7U CN206850593U (en) | 2017-06-15 | 2017-06-15 | Multilayer permanent magnetism off-set magnetic suspension unit, magnetic suspension motor and domestic air conditioning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206850593U true CN206850593U (en) | 2018-01-05 |
Family
ID=60800110
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720698058.7U Withdrawn - After Issue CN206850593U (en) | 2017-06-15 | 2017-06-15 | Multilayer permanent magnetism off-set magnetic suspension unit, magnetic suspension motor and domestic air conditioning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206850593U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112727921A (en) * | 2020-12-23 | 2021-04-30 | 北京航空航天大学 | Super-stable super-static single-shaft rotary table supported by active magnetic suspension bearing |
-
2017
- 2017-06-15 CN CN201720698058.7U patent/CN206850593U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2018228261A1 (en) * | 2017-06-15 | 2018-12-20 | 深圳麦格动力技术有限公司 | Multilayer permanent magnet biased magnetic suspension unit, magnetic suspension motor and household air conditioner |
| CN107181359B (en) * | 2017-06-15 | 2023-07-25 | 北京昆腾迈格技术有限公司 | Multilayer permanent magnet bias magnetic suspension unit, magnetic suspension motor and household air conditioner |
| CN112727921A (en) * | 2020-12-23 | 2021-04-30 | 北京航空航天大学 | Super-stable super-static single-shaft rotary table supported by active magnetic suspension bearing |
| CN112727921B (en) * | 2020-12-23 | 2021-09-14 | 北京航空航天大学 | Super-stable super-static single-shaft rotary table supported by active magnetic suspension bearing |
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