CN102146975A - Damping device and wind power generation tower using same - Google Patents
Damping device and wind power generation tower using same Download PDFInfo
- Publication number
- CN102146975A CN102146975A CN2011100295907A CN201110029590A CN102146975A CN 102146975 A CN102146975 A CN 102146975A CN 2011100295907 A CN2011100295907 A CN 2011100295907A CN 201110029590 A CN201110029590 A CN 201110029590A CN 102146975 A CN102146975 A CN 102146975A
- Authority
- CN
- China
- Prior art keywords
- steel plate
- damping device
- wind
- tower
- power generation
- 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.)
- Granted
Links
- 238000013016 damping Methods 0.000 title claims abstract description 46
- 238000010248 power generation Methods 0.000 title abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 35
- 239000010959 steel Substances 0.000 claims abstract description 35
- 230000005611 electricity Effects 0.000 claims description 22
- 239000003190 viscoelastic substance Substances 0.000 claims description 18
- 244000043261 Hevea brasiliensis Species 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 229920005549 butyl rubber Polymers 0.000 claims description 3
- 229920003052 natural elastomer Polymers 0.000 claims description 3
- 229920001194 natural rubber Polymers 0.000 claims description 3
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000005987 sulfurization reaction Methods 0.000 claims description 3
- 230000002459 sustained effect Effects 0.000 claims description 3
- 230000004044 response Effects 0.000 abstract description 5
- 230000006378 damage Effects 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 239000013013 elastic material Substances 0.000 abstract 3
- 230000007547 defect Effects 0.000 abstract 1
- 230000001464 adherent effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010977 unit operation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000003466 welding Methods 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
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/42—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by the mode of stressing
- F16F1/50—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by the mode of stressing loaded mainly in shear
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
- F03D13/201—Towers
-
- 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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
-
- 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
- F16F7/00—Vibration-dampers; Shock-absorbers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/96—Preventing, counteracting or reducing vibration or noise
- F05B2260/964—Preventing, counteracting or reducing vibration or noise by damping means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Child & Adolescent Psychology (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Wind Motors (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses a damping device and a wind power generation tower using the damping device. The damping device comprises a first steel plate, a second steel plate and viscous-elastic materials; and the viscous-elastic materials are clamped between the first steel plate and the second steel plate. The damping device is installed in a wind power generation tower frame. Therefore, the damping device used by the wind power generation tower can better reduce and control the dynamic response of a tower body through the effective energy consumption of the viscous-elastic materials and overcome the defects that the prior and common wind power generation tower system has bad vibration resistance and is easy to damage under the action of strong wind, strong wave and other natural factors.
Description
Technical field
The invention belongs to wind power generation field, relate to a kind of damping device and use the wind-power electricity generation high tower of this device.
Background technique
Continuous growth along with the human society energy consumption, a large amount of exploitations of non-renewable energy resources such as coal, oil, rock gas have formed very big pressure to energy sustainable supply, and energy shortage and environmental pollution have become the huge challenge that countries in the world are faced jointly.Readjust the energy structure, exploitation renewable energy sources, clean energy resource are important channels that addresses the above problem.Wind energy has been subjected to common concern as a kind of clean energy resource, has at home and abroad obtained in recent years greatly developing.Along with the continuous increase of wind power generating set electric motor power, the supporting structure of unit---wind-power electricity generation high tower is also constantly to large scale development, and the pylon that surpasses 100m is very general.Similar with tall and slender structure, such slim-lined construction can produce significant dynamic response and significantly distortion under dynamic load functions such as wind load, geological process, wave effect.For wind-power electricity generation, the excessive deformation of tower body and vibration will influence the work of transmission system in the cabin, reduce the generating efficiency of wind-powered electricity generation unit.The frequent vibration of tower body also can shorten the fatigue life of tower body, even may cause strength failure or the caused accident of falling the tower of fatigue ruption, brings immeasurable loss for country and society.Limited in view of blower fan cabin and body of the tower inner space, be applicable to that really the device of wind tower vibrations control does not also obtain research and development.So be necessary to develop a kind of vibration control apparatus that meets wind-power electricity generation high tower characteristics, thereby make the engineering application of wind tower vibrations control become possibility.
Summary of the invention
The objective of the invention is to overcome the shortcoming that prior art exists, a kind of damping device is provided and uses the wind-power electricity generation high tower of this device, its effectiveness in vibration suppression significantly, simple structure, do not take the blower fan cabin space, and can solve the operation hidden danger of blower fan under extreme weather.
For reaching above purpose, solution of the present invention is:
A kind of damping device, it comprises first steel plate, second steel plate and viscoelastic material, viscoelastic material is sandwiched between first steel plate and second steel plate.
Described viscoelastic material links to each other with first steel plate, second steel plate by the mode of sulfuration.
Described viscoelastic material is natural rubber, butyl rubber, organic silica gel or neoprene.
Described first steel plate is parallel two, and second steel plate inserts between the two parallel block plates of first steel plate.
A kind of wind-power electricity generation high tower that uses above-mentioned damping device comprises basis, pylon, cabin and internal structure, wheel hub, blade and damping device, and damping device is installed in the pylon.
Described damping device is at least 4, and symmetry is installed on the sustained height place of pylon.
Damping device of the present invention utilizes viscoelastic material to possess viscosity and flexible characteristics simultaneously, when the wind tower is occured bending and deformation by the external load effect, the body of the tower both sides produce elongation respectively and shorten distortion, thereby the feasible viscoelastic material that is fixed in the vibration damping equipment inside of body of the tower produces shear deformation and power consumption.The part energy of outside input is dissipated or be converted into heat energy by viscoelastic material, this vibration damping equipment can effectively reduce the tower body dynamic response, to reach the purpose of vibration damping.
Owing to adopted such scheme, the present invention to have following characteristics: (1) adopts the wind-powered electricity generation unit of wind-power electricity generation high tower vibration damping equipment of the present invention, elastic restoring force and damping force that control force is mainly provided by means of viscoelastic material shear deformation.Vibration damping equipment easy to make simple and easy, cost is lower; (2) the effective power consumption by viscoelastic material, wind-power electricity generation high tower vibration damping equipment of the present invention can reduce and control the dynamic response of tower body preferably, thereby it is poor to overcome the existing resistance to shock of the high tower system of wind-power electricity generation at present commonly used, the shortcoming of destruction takes place under natural causes effects such as high wind, high seas easily, prolong the operating life of the high tower system of wind-power electricity generation, increase the security and stability of wind-powered electricity generation unit operation.
Description of drawings
Fig. 1 is the schematic representation that adherent differential type viscoelastic damping vibration damping equipment is installed on wind-power electricity generation high tower body of the tower inside.
Fig. 2 is the schematic diagram of overlooking of adherent differential type viscoelastic damping vibration damping equipment.
Fig. 3 is the structure principle chart of adherent differential type viscoelastic damping vibration damping equipment.
Embodiment
The present invention is further illustrated below in conjunction with the accompanying drawing illustrated embodiment.
Fig. 1 shows structure of the present invention, and as seen from Figure 1, the high tower system of wind-power electricity generation of the present invention comprises basis 1, pylon 2, cabin and internal structure 3, wheel hub 4, blade 5, adherent differential type viscoelastic damping vibration damping equipment 6.Adherent differential type viscoelastic damping vibration damping equipment 6 is installed in the pylon 2.Generally speaking, can along hoop four damping devices 6 be installed symmetrically at the sustained height place of pylon 2, as shown in Figure 2.Preferable mounting point is half eminence of tower body.When the Passive Control power of needs is big, also can highly locate to set up symmetrically four damping devices at other of pylon 2.The structure of adherent differential type viscoelastic damping vibration damping equipment 6 comprises outside steel plate 7, inner steel plate 8, viscoelastic material 9, bolt 10 as shown in Figure 3.Steel plate can be selected general steel plate for use, and its size needs to be consistent with the pylon size, so that install.Viscoelastic material generally can be selected natural rubber, butyl rubber, organic silica gel, neoprene etc. for use.Close the position of each several part: outer steel plate 7 is connected on the tower wall at pylon 2 relatively low places by bolt 10, interior steel plate 8 connects by bolt or the form of welding is fixed on the tower wall of pylon 2 relative higher positions, accompany viscoelastic material 9 between outer steel plate 7 and the interior steel plate 8, viscoelastic material 9 links to each other with inside and outside steel plate by the mode of sulfuration.The working principle of adherent differential type viscoelastic damping vibration damping equipment 6 is: pylon 2 occurs bending and deformation under horizontal loads such as wind, earthquake, elongation takes place respectively and shortens distortion in the tower wall of pylon 2 both sides, so tower wall generation axial deformation between outer steel plate 7 and the interior steel plate 8, utilize the modified difference of this section tower wall, between the inside and outside steel plate just relative movement can take place, thereby make the viscoelastic material between the inside and outside steel plate produce reciprocal shearing lag return distortion, to absorb and dissipation energy.So just can significantly reduce the dynamic response of wind-power electricity generation high tower, prolong the wind-powered electricity generation operating life of high tower system of generating electricity, and increase the security and stability of wind-powered electricity generation unit operation.
The above-mentioned description to embodiment is can understand and apply the invention for ease of those skilled in the art.The person skilled in the art obviously can easily make various modifications to these embodiments, and needn't pass through performing creative labour being applied among other embodiments in the General Principle of this explanation.Therefore, the invention is not restricted to the embodiment here, those skilled in the art should be within protection scope of the present invention for improvement and modification that the present invention makes according to announcement of the present invention.
Claims (6)
1. damping device, it is characterized in that: it comprises first steel plate, second steel plate and viscoelastic material, viscoelastic material is sandwiched between first steel plate and second steel plate.
2. damping device as claimed in claim 1 is characterized in that: described viscoelastic material links to each other with first steel plate, second steel plate by the mode of sulfuration.
3. damping device as claimed in claim 1 is characterized in that: described viscoelastic material is natural rubber, butyl rubber, organic silica gel or neoprene.
4. damping device as claimed in claim 1 is characterized in that: described first steel plate is parallel two, and second steel plate inserts between the two parallel block plates of first steel plate.
5. wind-power electricity generation high tower that uses the described damping device of claim 1, it is characterized in that: it comprises basis, pylon, cabin and internal structure, wheel hub, blade and damping device, and damping device is installed in the pylon.
6. wind-power electricity generation high tower as claimed in claim 5 is characterized in that: described damping device is at least 4, and symmetry is installed on the sustained height place of pylon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100295907A CN102146975B (en) | 2011-01-27 | 2011-01-27 | Damping device and wind power generation tower using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100295907A CN102146975B (en) | 2011-01-27 | 2011-01-27 | Damping device and wind power generation tower using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102146975A true CN102146975A (en) | 2011-08-10 |
| CN102146975B CN102146975B (en) | 2013-02-13 |
Family
ID=44421388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100295907A Expired - Fee Related CN102146975B (en) | 2011-01-27 | 2011-01-27 | Damping device and wind power generation tower using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102146975B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103221308A (en) * | 2011-11-01 | 2013-07-24 | 莫戈公司 | Vibration isolation system and method |
| CN104747385A (en) * | 2015-03-13 | 2015-07-01 | 同济大学 | Wind turbine generator set tower laminated annular rubber vibration isolation device |
| KR20160007711A (en) * | 2014-06-25 | 2016-01-21 | 삼성중공업 주식회사 | Foundation structure for offshore wind turbine tower and offshore wind turbine installation vessel |
| KR20160007691A (en) * | 2014-06-23 | 2016-01-21 | 삼성중공업 주식회사 | Foundation structure for offshore wind turbine tower and offshore wind turbine installation vessel |
| CN114738439A (en) * | 2022-04-13 | 2022-07-12 | 同济大学 | Vibration damper for cooling tower |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4406094A (en) * | 1980-02-28 | 1983-09-27 | Messerschmitt-Boelkow-Blohm Gesellschaft Mit Beschraenkter Haftung | Apparatus for anchoring self-supporting, tall structures |
| JPH11153194A (en) * | 1997-11-20 | 1999-06-08 | Nippon Steel Corp | Damping member integrating elasto-plastic and visco-elastic damper |
| CN1224489A (en) * | 1996-01-12 | 1999-07-28 | 鲁滨逊地震有限公司 | Energy absorber |
| EP0995851A2 (en) * | 1998-10-23 | 2000-04-26 | Minnesota Mining And Manufacturing Company | Damper |
| WO2004104442A1 (en) * | 2003-05-24 | 2004-12-02 | Daimlerchrysler Ag | Damping strut for stabilizing body parts, and vehicle body comprising damping struts |
| CN1904406A (en) * | 2005-07-25 | 2007-01-31 | 通用电气公司 | Suspension system |
| CN101903652A (en) * | 2007-12-21 | 2010-12-01 | 维斯塔斯风力系统集团公司 | A wind turbine, a method for reducing noise emission from a wind turbine tower and use of a wind turbine |
-
2011
- 2011-01-27 CN CN2011100295907A patent/CN102146975B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4406094A (en) * | 1980-02-28 | 1983-09-27 | Messerschmitt-Boelkow-Blohm Gesellschaft Mit Beschraenkter Haftung | Apparatus for anchoring self-supporting, tall structures |
| CN1224489A (en) * | 1996-01-12 | 1999-07-28 | 鲁滨逊地震有限公司 | Energy absorber |
| JPH11153194A (en) * | 1997-11-20 | 1999-06-08 | Nippon Steel Corp | Damping member integrating elasto-plastic and visco-elastic damper |
| EP0995851A2 (en) * | 1998-10-23 | 2000-04-26 | Minnesota Mining And Manufacturing Company | Damper |
| WO2004104442A1 (en) * | 2003-05-24 | 2004-12-02 | Daimlerchrysler Ag | Damping strut for stabilizing body parts, and vehicle body comprising damping struts |
| CN1904406A (en) * | 2005-07-25 | 2007-01-31 | 通用电气公司 | Suspension system |
| CN101903652A (en) * | 2007-12-21 | 2010-12-01 | 维斯塔斯风力系统集团公司 | A wind turbine, a method for reducing noise emission from a wind turbine tower and use of a wind turbine |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103221308A (en) * | 2011-11-01 | 2013-07-24 | 莫戈公司 | Vibration isolation system and method |
| CN103221308B (en) * | 2011-11-01 | 2017-02-22 | 莫戈公司 | vibration isolation system and method |
| KR20160007691A (en) * | 2014-06-23 | 2016-01-21 | 삼성중공업 주식회사 | Foundation structure for offshore wind turbine tower and offshore wind turbine installation vessel |
| KR101635177B1 (en) * | 2014-06-23 | 2016-07-01 | 삼성중공업 주식회사 | Foundation structure for offshore wind turbine tower and offshore wind turbine installation vessel |
| KR20160007711A (en) * | 2014-06-25 | 2016-01-21 | 삼성중공업 주식회사 | Foundation structure for offshore wind turbine tower and offshore wind turbine installation vessel |
| KR101635181B1 (en) * | 2014-06-25 | 2016-07-01 | 삼성중공업 주식회사 | Foundation structure for offshore wind turbine tower and offshore wind turbine installation vessel |
| CN104747385A (en) * | 2015-03-13 | 2015-07-01 | 同济大学 | Wind turbine generator set tower laminated annular rubber vibration isolation device |
| CN114738439A (en) * | 2022-04-13 | 2022-07-12 | 同济大学 | Vibration damper for cooling tower |
| CN114738439B (en) * | 2022-04-13 | 2024-03-22 | 同济大学 | Vibration damper for cooling tower |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102146975B (en) | 2013-02-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102146975B (en) | Damping device and wind power generation tower using same | |
| CN201843734U (en) | Wind power generation tower vibration control system based on annular TLD (tuned liquid damper) | |
| CN103042939B (en) | New forms of energy emergency power generation vehicle | |
| CN111396498B (en) | Nonlinear vibration damper for wind turbine tower | |
| CN202040268U (en) | Damping device and high wind power generation tower using same | |
| CN201982255U (en) | Hydraulic support device for wind generator gearbox | |
| KR20130015568A (en) | Sound proof wall having wind power generating function | |
| CN203078336U (en) | New energy emergency power car | |
| CN205154489U (en) | Ocean power generation equipment based on parallel mechanism | |
| CN205260226U (en) | Wind power tower water damping device | |
| CN201225235Y (en) | Building altitude and laneway wind energy power generation system | |
| CN201443480U (en) | Elastic supporting system of wind generating set | |
| CN211058947U (en) | Blade damping device of wind driven generator | |
| CN102840269A (en) | Method used for increasing wind generating set system damping and tuning quality damper | |
| CN203604543U (en) | Vibration reduction structure of wind driven generator | |
| CN202274041U (en) | Shock-absorption mechanism of wind generating set gear box torque arm | |
| CN201843727U (en) | TLCD (Tuned Liquid Column Damper)-based vibration control system for wind power generation tower | |
| CN203272029U (en) | Damping device of wind power generation tower | |
| CN202832951U (en) | Wave power generating device | |
| CN201747536U (en) | Wind power machine set and transmission chain device thereof | |
| CN202914618U (en) | Tuned mass damper for increasing wind turbine generator system damping | |
| CN212563534U (en) | Single-pendulum type vibration damping device used inside large wind turbine tower | |
| CN205118112U (en) | Aerogenerator becomes oar switch board damping device | |
| CN208702617U (en) | A kind of damping device of wind wheel for wind power generation | |
| CN210660451U (en) | Vibration damper for upper part of tower cylinder of large offshore wind driven generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20160127 |
|
| EXPY | Termination of patent right or utility model |