CN107387631A - A kind of self-induction reluctance type electromagnetic damper - Google Patents
A kind of self-induction reluctance type electromagnetic damper Download PDFInfo
- Publication number
- CN107387631A CN107387631A CN201710750021.9A CN201710750021A CN107387631A CN 107387631 A CN107387631 A CN 107387631A CN 201710750021 A CN201710750021 A CN 201710750021A CN 107387631 A CN107387631 A CN 107387631A
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- CN
- China
- Prior art keywords
- yoke
- permanent magnet
- stator module
- mover assembly
- damper
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- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F6/00—Magnetic springs; Fluid magnetic springs, i.e. magnetic spring combined with a fluid
- F16F6/005—Magnetic springs; Fluid magnetic springs, i.e. magnetic spring combined with a fluid using permanent magnets only
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/06—Magnetic or electromagnetic
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a kind of self-induction reluctance type electromagnetic damper, belong to Control Technique of Vibration and Noise field.The damper includes shell stator module and internal mover assembly, shell stator module and internal mover assembly are assembled together, internal mover assembly moves freely relative to shell stator module, soft magnetic metal yoke and coil in the internal mover assembly are moved in magnetic field caused by shell stator module, produce current vortex respectively and hinder the Lorentz force of coil cutting magnetic induction line motion, the electromagnetic force for hindering the motion of soft magnetic metal yoke cutting magnetic induction line is produced simultaneously, and the electromagnetic force is much larger than Lorentz force.The damper of the present invention can export the damping force more much larger than traditional electromagnetic damper, at the same have concurrently it is good it is anti-wave and shock resistance, there is very strong engineering adaptability.
Description
Technical field
The invention belongs to Control Technique of Vibration and Noise field, more particularly to a kind of self-induction reluctance type electromagnetic damper.
Background technology
Shock absorber is the main damping element in vehicle suspension system, and it has weight for the ride comfort and security of vehicle
The effect wanted.At present, most of shock absorber used on vehicle is two-way function Hydraulic shock absorber, to hydraulic buffer
Maximum restraining factors are that limitation and oil temperature rise of the caused maximum damping force by oil pressure are influenceed on sealing property.For
Improve this situation of shock absorber, carry out a series of use new function material both at home and abroad as resisting medium, such as magnetic current
Change and electric current change etc..When another aspect hydraulic buffer is designed to adaptive damping, technical requirements are high, and structure is extremely complex, reliably
Property it is poor, therefore develop new construction active or semi-active damper device be just highly desirable.
Electromagnetic damper is simple in construction, good reliability, there is the advantages of richly endowed by nature in all fields.Electromagnetic damping at present
Device mainly has two kinds, and one kind is to utilize the law of electromagnetic induction, allows metallic plate to move generation current vortex in magnetic field and is converted into electricity
Thermal resistance and dissipate；Another kind is that induced electromotive force is produced when cutting magnetic induction line moves using back traverse, and then is being closed
Induced current in wire, and the Lorentz force for hindering the motion of coil cutting magnetic induction line is produced, this and damping force always hinder to move
Principle it is the same, i.e., damping force is produced in damper using this characteristic.But the damping of existing electromagnetic damper output
Power is little, and engineering adaptability is not strong, therefore fails to obtain widely engineer applied.
The content of the invention
In view of this, the invention provides a kind of self-induction reluctance type electromagnetic damper, the damper can be exported than traditional electricity
The much larger damping force of magnetic damper, at the same have concurrently it is good it is anti-wave and shock resistance, there is very strong engineering adaptability.
A kind of self-induction reluctance type electromagnetic damper, the damper include shell stator module and internal mover assembly, shell
Stator module and internal mover assembly are assembled together, and internal mover assembly moves freely relative to shell stator module, described
Soft magnetic metal yoke and coil in internal mover assembly are moved in magnetic field caused by shell stator module, produce electricity respectively
Vortex and the Lorentz force for hindering the motion of coil cutting magnetic induction line, while produce and hinder soft magnetic metal yoke cutting magnetic induction line fortune
Dynamic electromagnetic force, and the electromagnetic force is much larger than Lorentz force.
Further, the shell stator module include annular permanent magnet, permanent magnet upper magnet yoke, permanent magnet lower yoke and on
Support；The toroidal cavity of installation annular permanent magnet is formed after the permanent magnet upper magnet yoke and the combination of permanent magnet lower yoke, annular is forever
Magnet is arranged in the toroidal cavity, and the upper bracket has a circular end cap, and there is guide shaft at the center of end cap.
Further, the internal mover assembly includes soft magnetic metal yoke, coil, linear bearing and lower carriage；Institute
Coiling on the outer circumference surface of soft magnetic metal yoke is stated, soft magnetic metal yoke passes through linear bearing and the guide shaft of upper bracket
Activity coordinates, and lower carriage is fixedly connected on linear bearing.
When coil and soft magnetic metal yoke are moved together, the Lorentz force opposite with the direction of motion and electricity are on the one hand produced
Magnetic force, on the other hand, soft magnetic metal yoke can also convert kinetic energy into resistance heat and dissipate, so as to improve vibration insulating system
Damping characteristic, reduce the vibratory response of controlled device.
Beneficial effect：
1st, the present invention according to the law of electromagnetic induction produce induced-current, and according to magnetic resistance minimum principle, take into account Lorentz force,
The damping force opposite with the direction of motion is produced, while resistance heat can also be converted kinetic energy into and dissipated, greatly improves inner damping
The output characteristics of device, and optimize its structure, required horizontal space, height space are small, have concurrently and good anti-wave and resist
Impact property, engineer applied is very strong,.
2nd, new self-induction reluctance type electromagnetic damper of the invention can be combined with various shock absorbers installs and uses,
It can be used alone, and mounting means is simple and reliable, flexible and changeable, convenient disassembly, general degree is high.
3rd, the present invention is when being impacted and significantly being waved, because damper mover by linear bearing is arranged on stator
On guide shaft, and linear bearing can be born compared with big load, it is ensured that damper energy normal work.
Brief description of the drawings
Fig. 1 is the overall structure sectional view of the present invention；
Fig. 2 is the overall structure side view of the present invention；
Fig. 3 is the overall structure top view of the present invention；
Fig. 4 is the overall structure upward view of the present invention；
Fig. 5,6 are operation principle schematic diagram of the invention.
Wherein, 1- soft magnetic metals yoke, 2- coils, 3- annular permanent magnets, 4- permanent magnets upper magnet yoke, 5- fastening bolts,
6- upper brackets, 7- linear bearings, 8- permanent magnets lower yoke, 9- lower carriages.
Embodiment
The present invention will now be described in detail with reference to the accompanying drawings and examples.
As shown in accompanying drawing 1-4, the invention provides a kind of self-induction reluctance type electromagnetic damper, the damper is determined including shell
Sub-component and internal mover assembly, shell stator module is by annular permanent magnet 3, permanent magnet upper magnet yoke 4, fastening bolt 5, upper bracket
6 and permanent magnet lower yoke 8 form；Internal mover assembly is by soft magnetic metal yoke 1, coil 2, lower carriage 9 and two linear axis
Hold 7 compositions；
Permanent magnet upper magnet yoke 4 and permanent magnet lower yoke 8 form the toroidal cavity of installation annular permanent magnet 3, annular after combining
Permanent magnet 3 is arranged in the toroidal cavity, and upper bracket 6 has a circular end cap, and there are guide shaft, upper bracket 6 in the center of end cap
It is fixedly connected by fastening bolt 5 with the upper end of permanent magnet upper magnet yoke 4.
Coiling 2 on the outer circumference surface of soft magnetic metal yoke 1, soft magnetic metal yoke 1 pass through two linear bearings 7
Guide shaft activity with upper bracket coordinates, and lower carriage 9 is fixedly connected on the linear bearing 7 of lower end.
Linear bearing 7 on mover assembly can the free movement on the guide shaft of damper upper bracket 6, and ensure mover and
The working clearance of stator is 1mm.
Installation steps are as follows：The coiling 2 in soft magnetic metal yoke 1；By fastening bolt 52 linear bearings 7
It is fixed on lower carriage 9 in soft magnetic metal yoke 1, completes the installation of damper mover assembly；Annular permanent magnet 3 is fixed on forever
On magnet upper magnet yoke 4, and load permanent magnet lower yoke 8；By fastening bolt 5 mounted annular permanent magnet 3 and its up and down
Yoke is fixed on upper bracket 6, completes the installation of damper stator module；Mounted mover assembly is arranged on stator module
On guide shaft.
Operation principle is as depicted in figures 5 and 6：Lower yoke and soft magnetic metal yoke produce on annular permanent magnet, permanent magnet
S ← N of diagram → S magnetic field, when Inside coil and soft magnetic metal yoke move downward, by Faraday's electromagnetic induction law
Understand, wire can produce induced electromotive force when cutting magnetic induction line moves, and can determine that it is produced in coil with the right-hand rule
Inductive current direction, as shown in figure 5, may determine that coil produces Lorentz force as shown in Figure 5 according to left hand rule, together
When coil in induced-current magnetic field as shown in Figure 5 is produced in soft magnetic metal yoke, the magnetic field and the annular permanent magnet bodily form
Into magnetic field produce electromagnetic force, direction as shown in figure 5, i.e. Lorentz force caused by induced-current and electromagnetic force in the same direction and and coil
The direction of motion is on the contrary, soft magnetic metal yoke athletic meeting in magnetic field simultaneously produces current vortex and is converted into resistance heat and dissipates.
When Inside coil and soft magnetic metal yoke are moved upwards, from Faraday's electromagnetic induction law, wire is in cutting magnetic induction
Line can produce induced electromotive force when moving, and its caused inductive current direction, such as Fig. 6 in coil can be determined with the right-hand rule
It is shown, it may determine that coil produces Lorentz force as shown in Figure 6 according to left hand rule, while the induced-current in coil exists
Magnetic field as shown in Figure 6 is produced in soft magnetic metal yoke, the magnetic field produces electromagnetic force, side with the magnetic field that annular permanent magnet is formed
To as shown in fig. 6, i.e. Lorentz force caused by induced-current and electromagnetic force are in the same direction and in opposite direction with coil movement, while soft magnetism
Property metal yoke in magnetic field athletic meeting produce current vortex be converted into resistance heat and dissipate.
In summary, presently preferred embodiments of the present invention is these are only, is not intended to limit the scope of the present invention.
Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., it should be included in the present invention's
Within protection domain.
Claims (3)
1. a kind of self-induction reluctance type electromagnetic damper, the damper includes shell stator module and internal mover assembly, its feature
It is, the shell stator module and internal mover assembly are assembled together, and internal mover assembly is relative to shell stator module
Move freely, the soft magnetic metal yoke and coil in the internal mover assembly are transported in magnetic field caused by shell stator module
It is dynamic, produce current vortex respectively and hinder the Lorentz force of coil cutting magnetic induction line motion, while produce and hinder soft magnetic metal magnetic
The electromagnetic force of yoke cutting magnetic induction line motion, and the electromagnetic force is much larger than Lorentz force.
2. self-induction reluctance type electromagnetic damper as claimed in claim 1, it is characterised in that the shell stator module includes ring
Shape permanent magnet, permanent magnet upper magnet yoke, permanent magnet lower yoke and upper bracket；The permanent magnet upper magnet yoke and the combination of permanent magnet lower yoke
The toroidal cavity of installation annular permanent magnet is formed afterwards, and annular permanent magnet is arranged in the toroidal cavity, and the upper bracket has one
There is guide shaft at individual circular end cap, the center of end cap.
3. self-induction reluctance type electromagnetic damper as claimed in claim 2, it is characterised in that the internal mover assembly includes soft
Magnetic metal yoke, coil, linear bearing and lower carriage；Coiling on the outer circumference surface of the soft magnetic metal yoke is soft
Magnetic metal yoke is coordinated by the activity of the guide shaft of linear bearing and upper bracket, and lower carriage is fixedly connected on linear bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710750021.9A CN107387631A (en) | 2017-08-28 | 2017-08-28 | A kind of self-induction reluctance type electromagnetic damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710750021.9A CN107387631A (en) | 2017-08-28 | 2017-08-28 | A kind of self-induction reluctance type electromagnetic damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107387631A true CN107387631A (en) | 2017-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710750021.9A Pending CN107387631A (en) | 2017-08-28 | 2017-08-28 | A kind of self-induction reluctance type electromagnetic damper |
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| CN (1) | CN107387631A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108007478A (en) * | 2017-12-13 | 2018-05-08 | 中国船舶重工集团公司第七0七研究所 | Electromagnetic damper |
| CN108361307A (en) * | 2018-01-11 | 2018-08-03 | 株洲时代新材料科技股份有限公司 | A kind of vibration damping device |
| CN111828524A (en) * | 2020-07-23 | 2020-10-27 | 中国核动力研究设计院 | Novel electromagnetic negative stiffness vibration isolator with high radial stability |
| WO2020221094A1 (en) * | 2019-04-30 | 2020-11-05 | 上海隐冠半导体技术有限公司 | Magnetic levitation gravity compensation device |
| CN113357299A (en) * | 2021-06-23 | 2021-09-07 | 贵州航天林泉电机有限公司 | Eddy current damper with axial double-reed structure |
| RU2762760C2 (en) * | 2020-05-27 | 2021-12-22 | Алексей Германович Сидоров | Method for damping oscillations of the suspension of a vehicle by means of permanent magnet-induced eddy currents |
| RU2763617C1 (en) * | 2021-07-15 | 2021-12-30 | Федеральное государственное бюджетное образовательное учреждение высшего образования «Ставропольский государственный аграрный университет» | Shock absorber based on a linear electric motor |
| CN114439875A (en) * | 2022-01-14 | 2022-05-06 | 清华大学 | Electric eddy current magnetic liquid damping shock absorber |
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|---|---|---|---|---|
| JP2004140974A (en) * | 2002-10-21 | 2004-05-13 | Hiihaisuto Seiko Kk | Electromagnetic driver using soft magnetic material high in magnetic permeability and saturation flux density |
| JP2009150411A (en) * | 2007-12-18 | 2009-07-09 | Honda Motor Co Ltd | Variable damping force damper |
| CN102725944A (en) * | 2009-11-09 | 2012-10-10 | 核能科学公司 | Electric motor |
| CN104734453A (en) * | 2015-04-12 | 2015-06-24 | 河北工业大学 | Low-frequency permanent magnet vibration generator |
| CN106224421A (en) * | 2016-08-31 | 2016-12-14 | 西安交通大学 | The inertia-type actuator of a kind of low-frequency compensation and detection method thereof |
| CN106286666A (en) * | 2016-10-08 | 2017-01-04 | 中国船舶重工集团公司第七〇九研究所 | Reluctance type electromagnetism active vibration absorber |
| CN106337893A (en) * | 2016-10-08 | 2017-01-18 | 中国船舶重工集团公司第七〇九研究所 | Magnetic resistance type electromagnetic active vibration isolator |
| CN207333533U (en) * | 2017-08-28 | 2018-05-08 | 中国船舶重工集团公司第七一九研究所 | A kind of self-induction reluctance type electromagnetic damper |
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2017
- 2017-08-28 CN CN201710750021.9A patent/CN107387631A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004140974A (en) * | 2002-10-21 | 2004-05-13 | Hiihaisuto Seiko Kk | Electromagnetic driver using soft magnetic material high in magnetic permeability and saturation flux density |
| JP2009150411A (en) * | 2007-12-18 | 2009-07-09 | Honda Motor Co Ltd | Variable damping force damper |
| CN102725944A (en) * | 2009-11-09 | 2012-10-10 | 核能科学公司 | Electric motor |
| CN104734453A (en) * | 2015-04-12 | 2015-06-24 | 河北工业大学 | Low-frequency permanent magnet vibration generator |
| CN106224421A (en) * | 2016-08-31 | 2016-12-14 | 西安交通大学 | The inertia-type actuator of a kind of low-frequency compensation and detection method thereof |
| CN106286666A (en) * | 2016-10-08 | 2017-01-04 | 中国船舶重工集团公司第七〇九研究所 | Reluctance type electromagnetism active vibration absorber |
| CN106337893A (en) * | 2016-10-08 | 2017-01-18 | 中国船舶重工集团公司第七〇九研究所 | Magnetic resistance type electromagnetic active vibration isolator |
| CN207333533U (en) * | 2017-08-28 | 2018-05-08 | 中国船舶重工集团公司第七一九研究所 | A kind of self-induction reluctance type electromagnetic damper |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108007478A (en) * | 2017-12-13 | 2018-05-08 | 中国船舶重工集团公司第七0七研究所 | Electromagnetic damper |
| CN108361307A (en) * | 2018-01-11 | 2018-08-03 | 株洲时代新材料科技股份有限公司 | A kind of vibration damping device |
| WO2020221094A1 (en) * | 2019-04-30 | 2020-11-05 | 上海隐冠半导体技术有限公司 | Magnetic levitation gravity compensation device |
| RU2762760C2 (en) * | 2020-05-27 | 2021-12-22 | Алексей Германович Сидоров | Method for damping oscillations of the suspension of a vehicle by means of permanent magnet-induced eddy currents |
| CN111828524A (en) * | 2020-07-23 | 2020-10-27 | 中国核动力研究设计院 | Novel electromagnetic negative stiffness vibration isolator with high radial stability |
| CN113357299A (en) * | 2021-06-23 | 2021-09-07 | 贵州航天林泉电机有限公司 | Eddy current damper with axial double-reed structure |
| RU2763617C1 (en) * | 2021-07-15 | 2021-12-30 | Федеральное государственное бюджетное образовательное учреждение высшего образования «Ставропольский государственный аграрный университет» | Shock absorber based on a linear electric motor |
| CN114439875A (en) * | 2022-01-14 | 2022-05-06 | 清华大学 | Electric eddy current magnetic liquid damping shock absorber |
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Application publication date: 20171124 |
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