CN109326407A - Levitating electromagnet based on middle low speed magnetic suspension train - Google Patents
Levitating electromagnet based on middle low speed magnetic suspension train Download PDFInfo
- Publication number
- CN109326407A CN109326407A CN201811237160.2A CN201811237160A CN109326407A CN 109326407 A CN109326407 A CN 109326407A CN 201811237160 A CN201811237160 A CN 201811237160A CN 109326407 A CN109326407 A CN 109326407A
- Authority
- CN
- China
- Prior art keywords
- polar plate
- mictomagnet
- electromagnet
- floor iron
- low speed
- 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.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/20—Electromagnets; Actuators including electromagnets without armatures
- H01F7/206—Electromagnets for lifting, handling or transporting of magnetic pieces or material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L13/00—Electric propulsion for monorail vehicles, suspension vehicles or rack railways; Magnetic suspension or levitation for vehicles
- B60L13/04—Magnetic suspension or levitation for vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/20—Electromagnets; Actuators including electromagnets without armatures
- H01F7/206—Electromagnets for lifting, handling or transporting of magnetic pieces or material
- H01F2007/208—Electromagnets for lifting, handling or transporting of magnetic pieces or material combined with permanent magnets
Abstract
The embodiment of the invention discloses a kind of levitating electromagnets based on middle low speed magnetic suspension train, including and the corresponding mictomagnet of F type track and magnet exciting coil corresponding with mictomagnet, the mictomagnet includes electromagnet and two permanent magnets, the electromagnet includes floor iron, internal polar plate and external polar plate, internal polar plate and external polar plate are respectively arranged on inside and outside floor iron, described two permanent magnets are respectively correspondingly arranged between internal polar plate and floor iron and between external polar plate and floor iron, and the height on both sides of the floor iron are greater than middle height.The embodiment of the present invention is by using mictomagnet, the effective area and length for making permanent magnet are no longer limited by electromagnet installation and size, not only increase electromagnetic force, also help guiding stability, it is effectively improved magnetic saturation simultaneously and effectively increases suspendability, realize the performance optimization of medium-and low-speed maglev train system.
Description
Technical field
The present invention relates to magnetic-levitation train technical field more particularly to a kind of suspension electromagnetism based on middle low speed magnetic suspension train
Iron.
Background technique
With the rapid development of urban track traffic, the research of magnetic-levitation train increasingly attracts attention.Magnetic-levitation train is divided into electricity
Magnetic suspension type and electrodynamics suspension type.Middle low speed magnetic suspension is electromagnetic suspension, with the increase of movement velocity, the eddy current effect of rail
Increase, causes the suspending power of electromagnet and side guiding force all accordingly to reduce, and amplitude is gradually reduced.Existing levitating electromagnet electricity
Magnetic force is low and magnetic saturation phenomenon is serious, is unfavorable for being oriented to stability.
Summary of the invention
The technical problem to be solved by the embodiment of the invention is that providing a kind of suspension based on middle low speed magnetic suspension train
Electromagnet so as to improve electromagnetic force, while being effectively improved magnetic saturation.
In order to solve the above-mentioned technical problem, the embodiment of the present invention proposes a kind of suspension based on middle low speed magnetic suspension train
Electromagnet, including and the corresponding mictomagnet of F type track and magnet exciting coil corresponding with mictomagnet, the mictomagnet packet
Including electromagnet and two permanent magnets, the electromagnet includes floor iron, internal polar plate and external polar plate, and internal polar plate is respectively arranged on external polar plate
Inside and outside floor iron, described two permanent magnets are respectively correspondingly arranged between internal polar plate and floor iron and between external polar plate and floor iron,
The height on both sides of the floor iron are greater than middle height.
Further, the middle part of the cross section of the floor iron is in rectangle, and the two sides of cross section are in a rectangular trapezoid, and right angle
Trapezoidal long bottom edge is outwardly.
Further, the sectional area of the permanent magnet and thickness meet following formula:
Wherein, B is magnetic flux density；S is magnetic pole area；μ0For space permeability；Z is levitation gap；N is magnet exciting coil circle
Number；I is field coil current；μrFor the permanent-magnet material magnetic conductivity of permanent magnet；HCFor permanent magnet coercive force；SmFor permanent magnetism body section
Product；hmFor permanent magnetism body thickness；FemSuspending power, F for electromagnethmFor the suspending power of mictomagnet.
Further, the permanent magnet is made of neodymium iron boron.
Further, the magnetizing direction of the permanent magnet is in the horizontal direction, and vertical with F type track.
The embodiment of the present invention is by proposing a kind of levitating electromagnet based on middle low speed magnetic suspension train, by using mixing
Magnet limits the effective area of permanent magnet and length no longer by electromagnet installation and size, not only increases electromagnetic force, also
Be conducive to be oriented to stability, while being effectively improved magnetic saturation and effectively increasing suspendability, realizes medium-and low-speed maglev column
The performance of vehicle system optimizes.
Detailed description of the invention
Fig. 1 is the schematic cross-section of the levitating electromagnet based on middle low speed magnetic suspension train of the embodiment of the present invention.
Fig. 2 is that static suspension power compares under the mictomagnet of the embodiment of the present invention and the electromagnet difference electric current of the prior art
Curve graph.
Fig. 3 is that dynamic suspension power compares under the mictomagnet of the embodiment of the present invention and the electromagnet difference electric current of the prior art
Curve graph.
Drawing reference numeral explanation
Mictomagnet 10
Floor iron 11
Internal polar plate 12
External polar plate 13
Permanent magnet 14
Magnet exciting coil 20
F type track 30.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
It mutually combines, invention is further described in detail in the following with reference to the drawings and specific embodiments.
If directional instruction (such as up, down, left, right, before and after ...) is only used for explaining at certain in the embodiment of the present invention
Relative positional relationship, motion conditions etc. under one particular pose (as shown in the picture) between each component, if the particular pose is sent out
When raw change, then directionality instruction also correspondingly changes correspondingly.
If in addition, the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and should not be understood as
Its relative importance of indication or suggestion or the quantity for implicitly indicating indicated technical characteristic.Define as a result, " first ",
The feature of " second " can explicitly or implicitly include at least one of the features.
Fig. 1 is please referred to, the levitating electromagnet based on middle low speed magnetic suspension train of the embodiment of the present invention includes mictomagnet
10 and magnet exciting coil 20.
Mictomagnet 10 is corresponding with F type track 30.Magnet exciting coil 20 is corresponding with mictomagnet 10.Mictomagnet 10 includes electricity
Magnet and two permanent magnets 14.Electromagnet includes floor iron 11, internal polar plate 12 and external polar plate 13, and internal polar plate 12 and external polar plate 13 are distinguished
Inside and outside floor iron 11.Two permanent magnets 14 be respectively correspondingly arranged between internal polar plate 12 and floor iron 11 and external polar plate 13 with
Between floor iron 11, the height on both sides of the floor iron 11 are greater than middle height.Preferably, the height of permanent magnet 14 is equal to 11 liang of floor iron
The maximum height of side.
As an implementation, the middle part of the cross section of floor iron 11 is in rectangle, and the two sides of cross section are in a rectangular trapezoid,
And the long bottom edge of right-angled trapezium is outwardly, two base verticals of right-angled trapezium are in F type track 30.Preferably, permanent magnet 14
Height is equal to the length on the long bottom edge of right-angled trapezium.The embodiment of the present invention uses trapezoidal 11 structure of floor iron, effectively improves side end
The magnetic saturation phenomenon of floor iron 11 has been effectively relieved in the problem of magnetic circuit is saturated, and reduces magnetic circuit loss；Within the scope of total current, optimization
Electromagnetic force performance；In addition, permanent magnet 14 is mounted on 11 both ends of floor iron, structure is not limited by electromagnet size, therefore can be passed through
Optimize sectional area and length to improve force characteristic, is able to satisfy higher performance requirement.
As an implementation, the sectional area of permanent magnet 14 and thickness meet following formula:
Wherein, B is magnetic flux density；S is magnetic pole area；μ0For space permeability；Z is levitation gap；N is magnet exciting coil 20
The number of turns；I is the electric current of magnet exciting coil 20；μrFor the permanent-magnet material magnetic conductivity of permanent magnet 14；HCFor the coercivity of permanent magnet 14；
SmFor the sectional area of permanent magnet 14；hmFor the thickness of permanent magnet 14；FemSuspending power, F for electromagnethmFor the outstanding of mictomagnet 10
Buoyancy.Electromagnet in the prior art is transformed into the mictomagnet 10 of same shape by the embodiment of the present invention, and keeps magnetic pole strength
Product S is constant, and electromagnet in the prior art only has exciting current and provides electromagnetic force, and the mictomagnet 10 of the embodiment of the present invention is by electricity
Magnet and permanent magnet 14 form, and collective effect generates electromagnetic force, bigger electromagnetic force can be provided under the conditions of same current, simultaneously
Reduce suspension energy consumption, the optimization of centering low speed suspension system performance has a very important significance.
By finite element method, the electromagnet of mictomagnet 10 and the prior art under I=0~70A range of condition is analyzed
Static state and the dynamic force characteristic in v=160km/h, and compare the suspending power size of the electromagnet of the prior art, as a result
As shown in Figure 2 and Figure 3.By simulation result as it can be seen that the electromagnet B of the prior art though suspending power is maximum in low current conditions, with
The raising of electric current, magnetic circuit tend to be saturated, suspending power amplification is gradually reduced, and (I > 60A) suspending power is even under high current state
It is lower, it is not able to satisfy higher suspendability requirement.
As an implementation, permanent magnet 14 is made of neodymium iron boron.
As an implementation, the magnetizing direction of permanent magnet 14 is in the horizontal direction, and vertical with F type track 30.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention are defined by the appended claims and their equivalents.
Claims (5)
1. a kind of levitating electromagnet based on middle low speed magnetic suspension train, including mictomagnet corresponding with F type track and with
The corresponding magnet exciting coil of mictomagnet, which is characterized in that the mictomagnet includes electromagnet and two permanent magnets, the electromagnetism
Iron includes floor iron, internal polar plate and external polar plate, and internal polar plate and external polar plate are respectively arranged on inside and outside floor iron, described two permanent magnets
It is respectively correspondingly arranged between internal polar plate and floor iron and between external polar plate and floor iron, it is high that the height on both sides of the floor iron are greater than middle part
Degree.
2. the levitating electromagnet as described in claim 1 based on middle low speed magnetic suspension train, which is characterized in that the floor iron
The middle part of cross section is in rectangle, and the two sides of cross section are in a rectangular trapezoid, and the long bottom edge of right-angled trapezium is outwardly.
3. the levitating electromagnet as described in claim 1 based on middle low speed magnetic suspension train, which is characterized in that the permanent magnet
Sectional area and thickness meet following formula:
Wherein, B is magnetic flux density；S is magnetic pole area；μ0For space permeability；Z is levitation gap；N is magnet exciting coil the number of turns；i
For field coil current；μrFor the permanent-magnet material magnetic conductivity of permanent magnet；HCFor permanent magnet coercive force；SmFor permanent magnet sectional area；hm
For permanent magnetism body thickness；FemSuspending power, F for electromagnethmFor the suspending power of mictomagnet.
4. the levitating electromagnet as described in claim 1 based on middle low speed magnetic suspension train, which is characterized in that the permanent magnet
It is made of neodymium iron boron.
5. the levitating electromagnet as described in claim 1 based on middle low speed magnetic suspension train, which is characterized in that the permanent magnet
Magnetizing direction in the horizontal direction, and it is vertical with F type track.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811237160.2A CN109326407A (en) | 2018-10-23 | 2018-10-23 | Levitating electromagnet based on middle low speed magnetic suspension train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811237160.2A CN109326407A (en) | 2018-10-23 | 2018-10-23 | Levitating electromagnet based on middle low speed magnetic suspension train |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109326407A true CN109326407A (en) | 2019-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811237160.2A Pending CN109326407A (en) | 2018-10-23 | 2018-10-23 | Levitating electromagnet based on middle low speed magnetic suspension train |
Country Status (1)
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| CN (1) | CN109326407A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111267629A (en) * | 2020-03-23 | 2020-06-12 | 中车青岛四方机车车辆股份有限公司 | Integrated electromagnet and magnetic-levitation train |
| CN112193079A (en) * | 2020-09-23 | 2021-01-08 | 湖南凌翔磁浮科技有限责任公司 | Permanent magnet and electromagnetic hybrid magnet and design method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201357764Y (en) * | 2009-02-27 | 2009-12-09 | 中国人民解放军国防科学技术大学 | Hybrid-levitation electromagnet device for medium-speed and low-speed magnetic-levitation trains |
| CN201413752Y (en) * | 2009-05-26 | 2010-02-24 | 中国人民解放军国防科学技术大学 | Suspended electromagnet device for low-leakage efficient Maglev train |
| CN103481794A (en) * | 2013-09-10 | 2014-01-01 | 中国人民解放军国防科学技术大学 | Combined-type suspension electromagnet for medium-low-speed maglev train and manufacturing method of combined-type suspension electromagnet |
-
2018
- 2018-10-23 CN CN201811237160.2A patent/CN109326407A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201357764Y (en) * | 2009-02-27 | 2009-12-09 | 中国人民解放军国防科学技术大学 | Hybrid-levitation electromagnet device for medium-speed and low-speed magnetic-levitation trains |
| CN201413752Y (en) * | 2009-05-26 | 2010-02-24 | 中国人民解放军国防科学技术大学 | Suspended electromagnet device for low-leakage efficient Maglev train |
| CN103481794A (en) * | 2013-09-10 | 2014-01-01 | 中国人民解放军国防科学技术大学 | Combined-type suspension electromagnet for medium-low-speed maglev train and manufacturing method of combined-type suspension electromagnet |
Non-Patent Citations (1)
| Title |
|---|
| 张志洲等: "《考虑多约束条件的磁浮列车节能型永磁电磁磁铁优化设计》", 《机械工程学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111267629A (en) * | 2020-03-23 | 2020-06-12 | 中车青岛四方机车车辆股份有限公司 | Integrated electromagnet and magnetic-levitation train |
| CN111267629B (en) * | 2020-03-23 | 2022-03-01 | 中车青岛四方机车车辆股份有限公司 | Integrated electromagnet and magnetic-levitation train |
| CN112193079A (en) * | 2020-09-23 | 2021-01-08 | 湖南凌翔磁浮科技有限责任公司 | Permanent magnet and electromagnetic hybrid magnet and design method thereof |
| CN112193079B (en) * | 2020-09-23 | 2022-07-12 | 湖南凌翔磁浮科技有限责任公司 | Permanent magnet and electromagnetic hybrid magnet and design method thereof |
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Application publication date: 20190212 |
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