CN114439875A - Electric eddy current magnetic liquid damping shock absorber - Google Patents
Electric eddy current magnetic liquid damping shock absorber Download PDFInfo
- Publication number
- CN114439875A CN114439875A CN202210043554.4A CN202210043554A CN114439875A CN 114439875 A CN114439875 A CN 114439875A CN 202210043554 A CN202210043554 A CN 202210043554A CN 114439875 A CN114439875 A CN 114439875A
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- magnetic liquid
- restoring force
- working unit
- permanent magnets
- permanent magnet
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- 239000007788 liquid Substances 0.000 title claims abstract description 71
- 238000013016 damping Methods 0.000 title claims abstract description 40
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 38
- 230000035939 shock Effects 0.000 title claims abstract description 28
- 230000005674 electromagnetic induction Effects 0.000 abstract description 7
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 230000006698 induction Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 5
- 239000000725 suspension Substances 0.000 description 5
- 239000002131 composite material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
Images
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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
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- 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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
-
- 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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/42—Cooling arrangements
-
- 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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
- F16F9/535—Magnetorheological [MR] fluid dampers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses an eddy current magnetic liquid damping shock absorber which comprises a shell, a working unit, magnetic liquid, a restoring force permanent magnet and a conducting strip. When the eddy current magnetic liquid damping shock absorber is influenced by vibration, the working unit generates displacement in the shell, the magnetic field at the conducting plate changes, induction current is generated in the conducting plate according to the electromagnetic induction principle, and finally the current is converted into heat energy to be dissipated. The traditional magnetic liquid damper mainly consumes the vibration mechanical energy through friction in the magnetic liquid layer, and after the electric eddy current magnetic liquid damping shock absorber is influenced by vibration, the vibration mechanical energy is consumed through friction in the magnetic liquid layer, meanwhile, the vibration mechanical energy is converted into electric energy through electromagnetic induction, and finally, the electric energy is converted into heat energy for dissipation, so that the shock absorption efficiency is improved.
Description
Technical Field
The invention relates to the field of mechanical engineering vibration control, in particular to an electric vortex magnetic liquid damping shock absorber.
Background
The magnetic liquid is used as a novel nanometer functional material, and is a stable colloidal solution formed by dispersing a surface active agent coated on the surface of nanometer-scale magnetic particles in a base carrier liquid. Due to the unique composition and structure, the magnetic liquid has both fluidity and magnetism, and can be applied to a plurality of fields such as vibration absorbers, sensors, sealing and the like. The magnetic liquid damping vibration absorber works based on the magnetic liquid second-order buoyancy principle, has the advantages of long service life, no need of external energy supply, simple structure, small volume, light weight, high reliability and the like, and is suitable for local vibration attenuation of long components (such as satellite antennas and solar sailboards) in spacecrafts at low frequency, small amplitude and small acceleration.
However, the working unit in the existing magnetic liquid damping vibration absorber has poor suspension stability and low damping vibration attenuation efficiency.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide an eddy current magnetic liquid damping shock absorber, which has a high suspension stability of a working unit and an excellent damping effect.
According to the embodiment of the invention, the electric eddy current magnetic liquid damping shock absorber comprises a shell, a working unit, magnetic liquid, a restoring force permanent magnet and a conducting strip. The shell is provided with a cavity; the working unit is arranged in the cavity and comprises a plurality of permanent magnets and a connecting rod for connecting the permanent magnets, the homopolarity of two adjacent permanent magnets in the working unit is opposite, and the connecting rod is coaxial with the permanent magnets; the magnetic liquid is arranged between the permanent magnet and the shell; the restoring force permanent magnets are fixed on the inner wall of the shell and comprise first restoring force permanent magnets and second restoring force permanent magnets, the first restoring force permanent magnets and the second restoring force permanent magnets are respectively positioned at two ends of the shell and are opposite to the working units, and the first restoring force permanent magnets and the adjacent permanent magnets are arranged at intervals and have the same poles opposite to each other; the second restoring force permanent magnet is arranged at intervals with the adjacent permanent magnet blocks and has the same pole opposite to the permanent magnet blocks; the conducting strip is arranged on the inner wall of the shell and annularly surrounds the working unit.
When the eddy current magnetic liquid damping shock absorber is influenced by vibration, the working unit generates displacement in the shell, the magnetic field at the conducting strip changes, induction current is generated in the conducting strip according to the electromagnetic induction principle, and finally the current is converted into heat energy to be dissipated. Therefore, the vibration mechanical energy received by the eddy current magnetic liquid damping vibration absorber is dissipated through friction in the magnetic liquid layer, and simultaneously, the vibration mechanical energy is converted into electric energy through electromagnetic induction and finally converted into heat energy for dissipation, so that the vibration absorption efficiency is improved.
Further, the central axes of the shell, the working unit, the restoring force permanent magnet and the conducting strip are coincident.
Furthermore, a groove is formed in the inner wall of the shell, the conducting strip is arranged in the groove, and the thickness of the conducting strip is the same as the depth of the groove.
In some embodiments, the two ends of the shell are both provided with first exhaust holes, and the restoring force permanent magnet is provided with second exhaust holes which coincide with the central axes of the first exhaust holes.
In other embodiments, the working unit is provided with a through hole, and the through hole penetrates through the permanent magnet and the connecting rod.
Further, the through hole coincides with the central axes of the permanent magnet and the connecting rod.
Further, the shell is split, and the shell comprises an upper shell and a lower shell.
Furthermore, a gap exists between the circumferential edge of the permanent magnet and the inner wall of the shell, the gap is 1-5 mm, and the magnetic liquid is filled in the gap.
Further, the work unit further includes a coil wound around the connection rod.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic cross-sectional view of a first embodiment of an electric vortex magnetic liquid damping shock absorber in accordance with the present invention;
FIG. 2 is a cross-sectional view taken along line II-II of FIG. 1;
FIG. 3 is a cross-sectional view taken along line III-III of FIG. 1;
FIG. 4 is a schematic cross-sectional view of a second embodiment of the electric vortex magnetic liquid damping shock absorber of the present invention;
FIG. 5 is a cross-sectional view taken along line IV-IV of FIG. 4;
FIG. 6 is a schematic cross-sectional view of a third embodiment of an electric vortex magnetic liquid damping shock absorber in accordance with the present invention;
fig. 7 is a cross-sectional view taken along line v-v in fig. 6.
Reference numerals: an electric eddy current magnetic liquid damping shock absorber 100,
a shell 10, an upper shell 11, a lower shell 12, a groove 13, a cavity 14, a first exhaust hole 15,
working unit 20, permanent magnet 21, connecting rod 22, coil 23 and through hole 24
The magnetic liquid (30) is in the form of a magnetic liquid,
a restoring force permanent magnet 40, a first restoring force permanent magnet 41, a second restoring force permanent magnet 42, a second exhaust hole 43,
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "inside", "outside", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1 to 3, an electric vortex magnetic liquid damping shock absorber 100 according to a first embodiment of the present invention includes a housing 10, a working unit 20, a magnetic liquid 30, a restoring force permanent magnet 40, and a conductive sheet 50.
The shell 10 is provided with a cavity 14, the cavity 14 is used for placing the working unit 20, the magnetic liquid 30 and the restoring force permanent magnet 40, the inner wall of the shell 10 is further provided with a groove 13, the groove 13 is used for accommodating a conducting strip 50, and the conducting strip 50 is annular and surrounds the working unit 20. The material of the shell 10 is non-magnetic and non-conductive, such as organic glass, to avoid the mutual influence between the shell 10 and the permanent magnet 21 in the working unit 20.
The working unit 20 comprises permanent magnets 21, a connecting rod 22 and a coil 23. The working unit 20 has a plurality of permanent magnets 21, which are made of permanent magnetic material, such as neodymium iron boron. Two adjacent permanent magnets 21 are opposite in homopolar and connected through a connecting rod 22, and a coil 23 is wound on the connecting rod 22. Compared with a single magnet structure, the composite structure formed by connecting and combining the permanent magnets 21 has larger magnetic field gradient, so that the suspension force of the magnetic liquid 30 borne by the permanent magnets 21 is increased, the suspension stability of the working unit 20 is improved, the vibration reduction performance is improved, and the service life is prolonged. It should be noted that although the composite structure of the plurality of permanent magnets 21 is larger than the magnetic field gradient generated by a single magnet structure, so as to improve the stability of the eddy current magnetic liquid damping shock absorber 100, the number of the permanent magnets 21 is not too large in consideration of the limitations of the volume, mass, coaxiality and other conditions, and generally, the working unit 20 may select 3 to 7 permanent magnets 21 to combine into the composite structure according to the shock absorption requirement.
A gap exists between the permanent magnet blocks 21 and the shell 10, the width of the gap is 1-5 mm, so that the working unit 20 and the shell 10 can move relatively, magnetic liquid 30 is filled in the gap, the gap is generally made of oil-based or ester-based magnetic liquid, and the magnetic liquid 30 is adsorbed on the surfaces of the permanent magnet blocks 21.
Although, based on the magnetic liquid second-order buoyancy principle, the magnetic liquid 30 may suspend the working unit 20 immersed therein having a specific gravity greater than itself. When the working unit 20 is in static suspension, the working unit 20 is basically in the center of liquid, when external vibration energy is received, random fluctuation of the working unit 20 is caused, and finally the working unit 20 returns to a balance position in a return motion mode due to pressure difference caused by asymmetry of the magnetic liquid 30, namely returns to the center of the liquid, but because the working unit 20 is formed by combining a plurality of permanent magnets 21, the mass is large, only acting force provided by the magnetic liquid 30 is insufficient to provide required restoring force for the working unit 20 to do the return motion, restoring force permanent magnets 40 for providing restoring force for the working unit 20 are arranged at two ends of the shell 10, the restoring force permanent magnets 40 are fixed on the inner wall of the shell 10 and comprise a first restoring force permanent magnet 41 and a second restoring force permanent magnet 42, and the first restoring force permanent magnet 41 is arranged at intervals with the adjacent permanent magnets 21 and the same poles of the first restoring force permanent magnet 41 are opposite; the second restoring force permanent magnets 42 are arranged at intervals from the adjacent permanent magnets 21 and have the same poles opposite to each other. Since the same poles of the magnets repel each other, a repulsive force is generated between the restoring force permanent magnet 40 and the working unit 20, and the repulsive force pushes the working unit 20 to make the working unit 20 reciprocate in the housing 10.
In the eddy current magnetic liquid damping vibration absorber 100 according to the first embodiment of the present invention, the housing 10 is split, and includes the upper housing 11 and the lower housing 12, the upper housing 11 and the lower housing 12 are detachable, so that when the eddy current magnetic liquid damping vibration absorber 100 is assembled, the working unit 20, the restoring force permanent magnet 40 and the conductive plate 50 are conveniently assembled in the housing 10, and when the conductive plate 50 is installed, the thickness of the conductive plate 50 is the same as the depth of the groove 13, so that it can be ensured that the inner wall of the housing 10 is still in a smooth state after the conductive plate 50 is installed, and the reciprocating motion of the working unit 20 in the housing 10 is not affected.
In the using process, the eddy current magnetic liquid damping vibration absorber 100 is influenced by external vibration, the working unit 20 generates displacement in the housing 10, the restoring force permanent magnet 40 provides restoring force for the working unit 20, so that the working unit 20 reciprocates in the housing 10, the magnetic field at the conducting strip 50 changes in the reciprocating process of the working unit 20, and according to the electromagnetic induction principle, the magnetic field at the conducting strip 50 changes, so that induced current is generated in the conducting strip 50. The conductive sheet 50 is generally made of a material with good conductivity, such as electrician pure iron, so that the conductive sheet 50 has a low resistivity, an eddy current is generated in the conductive sheet 50, and finally the eddy current is converted into heat energy to be dissipated. The traditional magnetic liquid damper mainly consumes the vibration mechanical energy through friction in the magnetic liquid 30 layer, and after the electric vortex magnetic liquid damping shock absorber 100 is influenced by vibration, the vibration mechanical energy is consumed through friction in the magnetic liquid 30 layer, meanwhile, the vibration mechanical energy is converted into electric energy through electromagnetic induction and finally converted into heat energy for dissipation, so that the shock absorption efficiency of the electric vortex magnetic liquid damping shock absorber 100 is improved. As shown in fig. 1, in the embodiment of the present embodiment, a coil 23 is further wound on a connecting rod 22 in the working unit 20, and a magnetic field at the coil 23 is also changed during the reciprocating motion of the working unit 20, and similarly, according to the principle of electromagnetic induction, an induced current is generated in the coil 23, and the induced current generated in the coil 23 is finally converted into heat energy to be dissipated, so that the efficiency of the eddy current magnetic liquid damping vibration absorber 100 for converting the mechanical energy of vibration into the electrical energy is further improved, and the vibration damping performance of the eddy current magnetic liquid damping vibration absorber 100 is further improved.
The induced current generated in the conducting strip 50 and the coil 23 is finally converted into heat energy to be dissipated, the temperature of the magnetic liquid 30 is increased by the dissipated heat energy, the viscosity of the magnetic liquid 30 is reduced at a higher temperature, and the sensitivity of the eddy current magnetic liquid damping shock absorber 100 is improved.
Referring to fig. 4 to 5, an eddy current magnetic liquid damping vibration absorber 100 according to a second embodiment of the present invention is different from the first embodiment in that a through hole 24 is formed in the working unit 20, the through hole 24 penetrates through the connecting rod 22 and the permanent magnet 21, and the through hole 24 has the same central axis as the central axis of the working unit 20. The cavity 14 of the housing 10 is in a sealed state, and when the electric vortex magnetic liquid damping shock absorber 100 is used in an environment with atmospheric pressure, during the movement of the working unit 20, the through hole 24 can balance the atmospheric pressure at two ends of the working unit 20, so that the working unit 20 is not affected by the atmospheric pressure, and the working unit 20 can normally reciprocate in the housing 10.
Referring to fig. 6 to 7, in an eddy current magnetic liquid damping vibration absorber 100 according to a third embodiment of the present invention, first exhaust holes 15 are formed at two ends of a housing 10, and second exhaust holes 43 are formed in a restoring force permanent magnet 40, where the second exhaust holes 43 coincide with central axes of the first exhaust holes 15. The first exhaust hole 15 and the second exhaust hole 43 are matched for exhausting or air intake, so that the atmospheric pressure at two ends of the working unit 20 is in a balanced state in the reciprocating motion process of the working unit 20, and the influence of the atmospheric pressure on the reciprocating motion of the working unit 20 is avoided.
In the description herein, references to the description of the terms "some embodiments," "optionally," "further," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. An electric vortex magnetic liquid damping shock absorber comprising:
a housing having a cavity;
the working unit is arranged in the cavity and comprises a plurality of permanent magnets and a connecting rod for connecting the permanent magnets, the homopolarity of two adjacent permanent magnets in the working unit is opposite, and the connecting rod is coaxial with the permanent magnets;
the magnetic liquid is arranged between the permanent magnet and the shell;
the restoring force permanent magnets are fixed on the inner wall of the shell and comprise first restoring force permanent magnets and second restoring force permanent magnets, the first restoring force permanent magnets and the second restoring force permanent magnets are respectively positioned at two ends of the shell and are opposite to the working units, and the first restoring force permanent magnets and the adjacent permanent magnets are arranged at intervals and have the same poles opposite to each other; the second restoring force permanent magnet is arranged at intervals with the adjacent permanent magnet blocks and has the same pole opposite to the permanent magnet blocks;
the conducting strip is arranged on the inner wall of the shell and annularly surrounds the working unit.
2. The electric vortex magnetic liquid damper as claimed in claim 1 wherein the central axes of said housing, said working unit, said restoring force permanent magnet and said conductive plate coincide.
3. The eddy current magnetic liquid damping absorber as recited in claim 2, wherein the inner wall of the housing is provided with a groove, the conductive strip is provided in the groove, and the thickness of the conductive strip is the same as the depth of the groove.
4. An electric vortex magnetic liquid damping shock absorber according to any one of claims 1 to 3 wherein both ends of the housing are provided with a first exhaust port; the restoring force permanent magnet is provided with a second exhaust hole, and the second exhaust hole is overlapped with the central axis of the first exhaust hole.
5. An electric vortex magnetic liquid damping shock absorber according to any one of claims 1 to 3 wherein the working unit is provided with a through hole which passes through the permanent magnet and the connecting rod.
6. An electric vortex magnetic liquid damping shock absorber according to claim 5 wherein said through hole coincides with the central axis of said permanent magnet and said connecting rod.
7. The electric vortex magnetic liquid damping shock absorber according to claim 3, wherein said housing is split, said housing comprising an upper shell and a lower shell.
8. The eddy current magnetic liquid damping absorber as claimed in claim 3, wherein there is a gap between the circumferential edge of the permanent magnet block and the inner wall of the housing, the gap being 1-5 mm, and the magnetic liquid being filled in the gap.
9. The electric vortex magnetic liquid damping shock absorber of claim 3 wherein said working unit further comprises a coil wound on said connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210043554.4A CN114439875A (en) | 2022-01-14 | 2022-01-14 | Electric eddy current magnetic liquid damping shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210043554.4A CN114439875A (en) | 2022-01-14 | 2022-01-14 | Electric eddy current magnetic liquid damping shock absorber |
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| Publication Number | Publication Date |
|---|---|
| CN114439875A true CN114439875A (en) | 2022-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210043554.4A Pending CN114439875A (en) | 2022-01-14 | 2022-01-14 | Electric eddy current magnetic liquid damping shock absorber |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2240930C1 (en) * | 2003-05-28 | 2004-11-27 | Военная академия Ракетных войск стратегического назначения им. Петра Великого | Controllable suspension |
| CN101968096A (en) * | 2010-09-29 | 2011-02-09 | 中国电力科学研究院 | Self-driving magnetorheological damper |
| JP2012141045A (en) * | 2011-01-06 | 2012-07-26 | Toshiba Corp | Damper and laundry apparatus |
| CN204533318U (en) * | 2015-01-28 | 2015-08-05 | 北京交通大学 | Permanent magnet provides the magnetic fluid damper of restoring force |
| CN104847826A (en) * | 2015-04-14 | 2015-08-19 | 北京交通大学 | Inner taper angle magnetic liquid damping shock absorber |
| CN107387631A (en) * | 2017-08-28 | 2017-11-24 | 中国船舶重工集团公司第七〇九研究所 | A kind of self-induction reluctance type electromagnetic damper |
| JP2020060208A (en) * | 2018-10-05 | 2020-04-16 | 本田技研工業株式会社 | Mount bush |
| CN112112921A (en) * | 2020-10-29 | 2020-12-22 | 清华大学 | Magnetic liquid damping vibration absorber |
| CN112196926A (en) * | 2020-10-23 | 2021-01-08 | 清华大学 | Magnetic liquid damping vibration absorber |
| CN214221861U (en) * | 2020-12-28 | 2021-09-17 | 清华大学 | Lower cone angle type magnetic liquid shock absorber |
| CN113708592A (en) * | 2021-08-19 | 2021-11-26 | 中国科学院宁波材料技术与工程研究所 | Permanent-magnet self-suspension type magnetic liquid kinetic energy collector |
-
2022
- 2022-01-14 CN CN202210043554.4A patent/CN114439875A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2240930C1 (en) * | 2003-05-28 | 2004-11-27 | Военная академия Ракетных войск стратегического назначения им. Петра Великого | Controllable suspension |
| CN101968096A (en) * | 2010-09-29 | 2011-02-09 | 中国电力科学研究院 | Self-driving magnetorheological damper |
| JP2012141045A (en) * | 2011-01-06 | 2012-07-26 | Toshiba Corp | Damper and laundry apparatus |
| CN204533318U (en) * | 2015-01-28 | 2015-08-05 | 北京交通大学 | Permanent magnet provides the magnetic fluid damper of restoring force |
| CN104847826A (en) * | 2015-04-14 | 2015-08-19 | 北京交通大学 | Inner taper angle magnetic liquid damping shock absorber |
| CN107387631A (en) * | 2017-08-28 | 2017-11-24 | 中国船舶重工集团公司第七〇九研究所 | A kind of self-induction reluctance type electromagnetic damper |
| JP2020060208A (en) * | 2018-10-05 | 2020-04-16 | 本田技研工業株式会社 | Mount bush |
| CN112196926A (en) * | 2020-10-23 | 2021-01-08 | 清华大学 | Magnetic liquid damping vibration absorber |
| CN112112921A (en) * | 2020-10-29 | 2020-12-22 | 清华大学 | Magnetic liquid damping vibration absorber |
| CN214221861U (en) * | 2020-12-28 | 2021-09-17 | 清华大学 | Lower cone angle type magnetic liquid shock absorber |
| CN113708592A (en) * | 2021-08-19 | 2021-11-26 | 中国科学院宁波材料技术与工程研究所 | Permanent-magnet self-suspension type magnetic liquid kinetic energy collector |
Non-Patent Citations (2)
| Title |
|---|
| 丁一等: "磁性液体阻尼减振器的设计与试验研究", 《载人航天》 * |
| 许晓勤等: "基于磁流变液的客车缓速器设计", 《淮阴工学院学报》 * |
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Application publication date: 20220506 |