CN207588826U - A kind of four fracture laser triggered vacuum switch of high pressure - Google Patents
A kind of four fracture laser triggered vacuum switch of high pressure Download PDFInfo
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- CN207588826U CN207588826U CN201721867052.4U CN201721867052U CN207588826U CN 207588826 U CN207588826 U CN 207588826U CN 201721867052 U CN201721867052 U CN 201721867052U CN 207588826 U CN207588826 U CN 207588826U
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Abstract
The utility model provides a kind of four fracture laser triggered vacuum switch of high pressure, belongs to high-voltage large-capacity pulse power switch technical field.A kind of four fracture laser triggered vacuum switch of high pressure, including the sequentially connected plate laser-triggered vacuum gap of four head and the tail and its synchronous triggering system；Four vacuum gaps are located at four vertex of an isosceles trapezoid respectively；Four laser-triggered vacuum gap series are formed high pressure laser triggered vacuum switch by the utility model, voltage is uniformly distributed between the arrangement of setting series gap makes gap, coordinate laser-triggered vacuum gap and the synchronous triggering system of more trigger electrode structures, promote the synchronization conduction property and its applied voltage grade of four fracture laser triggered vacuum switch of high pressure；Multiple target electrodes of electrode surface are bombarded simultaneously using Multichannel Parallel laser, to generate more initial plasmas, the conduction property and service life of lifting switch.
Description
Technical field
The utility model belongs to high-voltage large-capacity power switch technical field, and it is true to be related to a kind of four fracture laser triggering of high pressure
It is spaced apart pass.
Background technology
Multiple key technology areas such as China's national defense, scientific research, protecting electrical power system answer Pulse Power Techniques in recent years
Constantly increased with Research Requirements, research and develop the excellent pulse power switch device gesture of a kind of high-power, Gao Zhongying, working performance and exist
It must go.Research currently for closure switch in pulse power system can be divided mainly into gas trigger switch and Triggered Vacuum Switch
Both direction, being distinguished again by its triggering mode has electric pulse triggering and laser triggering two types.Electric pulse trigger switch is main
It relies on its trigger electrode and main gap is connected to generate initial plasma with the high energy pulse electric discharge between main electrode, there is structure letter
Singly, the advantages of through-current capacity is big；But maintain the trigger energy needed for its works fine performance excessively high, and electric arc to its trigger electrode and touches
There are serious ablations to act on for hair pole coating material, influences the application range and service life of electric pulse trigger switch.Laser touches
Hair switch, as trigger source, has the characteristics that the isolation of triggering system electrical, repeated trigger control are simple using laser pulse.Laser
Triggering gas switch is influenced by its insulating gas electrical characteristic, and repetition connecting-disconnecting function is relatively poor；It is in addition, good to obtain
Working performance, laser triggering gas switch need to maintain the higher under-voltage when certain inflation pressure of work, limit it using model
It encloses.
Laser triggered vacuum switch is that one kind combines electric pulse Triggered Vacuum Switch and laser triggering gas switch technology
A kind of novel pulse power closure switch device of advantage, to trigger target in the laser pulse bombardment target electrode of high-energy density
Material, generating a large amount of initial plasmas enables vacuum gap fast conducting；Utilize the good insulation performance of vacuum short air gap and pole
More preferably repetition Interruption performance is obtained for excellent arc extinguishing ability.Compared to laser triggering gas switch, laser triggered vacuum switch
With conducting delay is short, triggering precision is high, operating voltage range is wide, reliable trigger is high, repetition Interruption performance is excellent, the work longevity
The advantages that life is long, strong antijamming capability, great development potentiality has all been shown in many application fields.But it is limited to vacuum space
The resistance to voltage levels of gap sow discord voltage that single break laser triggered vacuum switch is promoted there are non-linear growth relationship etc. with its clearance gap
Grade is more difficult.The voltage class of domestic and international existing laser triggered vacuum switch product is relatively low and limited capacity, it is difficult to
Meet working performance demand of the high-pressure system to large capacity laser triggered vacuum switch.
Based on the Research foundation of high pressure Vacuum Switch with Multiple Breaks, if by multiple laser-triggered vacuum gap series, group
Into a kind of novel multi-break laser triggered vacuum switch to promote its applied voltage grade；The arrangement side of setting series connection vacuum gap
Formula makes to obtain the voltage's distribiuting relationship being more uniformly distributed between gap, meets the synchronous conducting need of multi-break laser triggered vacuum switch
It asks；Change the quantity of target electrode and position in vacuum gap, gap interior energy is made to generate more initial plasmas with lifting switch
Synchronization conduction property；Design switch synchronous triggering system, control laser generate simultaneously multichannel energy it is equal it is parallel swash
Light realizes the synchronous triggering in multiple laser-triggered vacuum gaps, obtains that performance is more excellent, laser-triggered vacuum of capacity bigger with this
Switch product.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of four fracture laser triggered vacuum switch of high pressure, by setting
The arrangement for putting the laser-triggered vacuum gap of four series connection carrys out voltage's distribiuting relationship between Optimization gap, meets multi-break laser
The synchronization conducting demand of Triggered Vacuum Switch；Change target electrode quantity in vacuum gap make gap interior energy generate it is more it is initial wait from
Daughter, the synchronization conduction property of improving laser Triggered Vacuum Switch；Synchronous triggering system is designed, laser is made to be simultaneously emitted by multichannel
The equal parallel laser of energy realizes that four fracture laser triggered vacuum switch of high pressure is quick, synchronizes conducting.
The technical solution of the utility model：
A kind of four fracture laser triggered vacuum switch of high pressure, including synchronous triggering system, four plate electrode knots connected
The laser-triggered vacuum gap of structure, high-voltage connection terminal, wire connection terminal, low-voltage wiring terminal, supporting insulator, hollow insulation branch
Column, double-deck pallet and pedestal；
Four laser-triggered vacuum gaps are located in upper and lower two layers of pallet respectively, four laser-triggered vacuums
Three, gap wire connection terminal joins end to end, and forms an isosceles trapezoid, and each laser-triggered vacuum gap is located at isosceles ladder respectively
The apex of shape, the line in the laser-triggered vacuum gap of the same side two and the angle on ground are 45 °, this arrangement can make string
Voltage between connection vacuum gap is uniformly distributed, and avoids different under-voltage conducting delays and triggering than lower each laser-triggered vacuum gap
Influence of the precision difference to the synchronization conduction property of four fracture laser triggered vacuum switch of high pressure, while can carry to a certain extent
Rise the applied voltage grade of switch；Four fracture laser triggered vacuum switch of high pressure through high-voltage connection terminal, low-voltage wiring terminal with
External system connects；Each laser-triggered vacuum gap is fixed on double vertically respectively by supporting insulator and/or insulation column
On layer frame platform, ensure the mechanical stability of switch and external insulation demand, pedestal is set to below double-deck pallet, is used to support entire
Four fracture laser triggered vacuum switch of high pressure；
The plate laser-triggered vacuum gap includes insulation crust, upper end cover flange, bottom end cover flange, anode and leads
Electric pole, cathode conducting rod, barrier lid, high transmissive optical glass, sealing can valve, shielding case, anode contact, cathode contact, light hole,
Trigger target and target electrode；
The insulation crust is the cylindrical cavity with cluster parachute, and upper and lower ends are respectively by upper end cover flange, bottom end cover
Flange seal；Conductive anode rod is hollow cylinder, is realized and sealed by upper end cover flange；Cathode conducting rod and bottom end cover flange are close
Envelope connection；Be connected to baffle lid at the top of conductive anode rod, baffle lid be embedded with high transmissive optical glass and sealing can valve, high transmissive optical glass
Glass it is sealed can valve be sealedly connected on the top of conductive anode rod, providing laser while vacuum degree in triggered gap is ensured leads to
Road；
Shielding case is located inside insulation crust, for optimizing the internal electric field distribution of laser-triggered vacuum gap；Anode contact with
Conductive anode rod bottom is direct-connected, and cathode contact is connected at the top of cathode conducting rod, and anode contact is positioned opposite with cathode contact, equal position
In in shielding case；
Anode contact center is equipped with multiple light holes, and each light hole is located at a regular polygon top concentric with anode contact
Point, the position of each light hole and the multiple target electrodes in cathode contact surface correspond；Target electricity is filled in after triggering target is repressed
Extremely interior, the position for triggering target is slightly below cathode contact surface, to weaken influence of the arc erosion to target service life；
The light hole and the quantity of target electrode and position can be adjusted according to requirement of engineering, increase light hole and target
The quantity of electrode can increase laser and trigger the direct active area of target, the conduction property of improving laser Triggered Vacuum Switch,
Reduce influence of the laser ablation to target life to a certain extent simultaneously；Incident laser is through high transmissive optical glass and anode conducting
Light hole under bar acts on target electrode internal trigger target.
The synchronous triggering system, including trigger controller, telecommunication optical fiber, two lasers, two group of first spectroscope
Piece A, two groups of full-reverse lens A and the identical light splitting optical path of four structures；The first light splitting eyeglass A is the 1 of transmitance 50%:
1 light splitting eyeglass；
The trigger controller controls two lasers by telecommunication optical fiber respectively, and every laser corresponds to one group first
Eyeglass A, one group of full-reverse lens A and two light splitting optical paths are divided, the laser that laser is sent out is first through the first light splitting eyeglass A light splitting
As the equal laser of two-way energy, the laser through the first light splitting eyeglass A reflections enters first light splitting optical path, through first point
The another way laser of light microscopic piece A is reflected into Article 2 light splitting optical path through full-reverse lens A；
Every light splitting optical path, which will include multiple light splitting eyeglasses, multiple full-reverse lens and multiple focusing lens, light splitting optical path, to be entered
It penetrates laser and is divided into the equal parallel laser of multi beam energy；It is divided light splitting ratio, position and the quantity and full-reverse lens of eyeglass
Position, the position of quantity and focusing lens and quantity match, and make finally to inject the laser beam in laser-triggered vacuum gap
Number it is identical with thang-kng number of perforations；
After the action command that trigger controller receives external system through remote fiber, through telecommunication optical fiber respectively to two laser
Device sends trigger signal, and the laser that laser is sent out respectively enters four light splitting optical paths and is divided, and the laser after light splitting passes through
After each focusing lens focus on, across high transmissive optical glass, light hole after focus on triggering target material surface, realize four laser triggerings
Vacuum gap synchronizes conducting.
The preferred embodiment of light splitting optical path：
Every light splitting optical path includes the second light splitting eyeglass, full-reverse lens B, the first light splitting eyeglass B, full-reverse lens C and three
Focusing lens；The second light splitting eyeglass is the 2 of transmitance 66%:1 light splitting eyeglass, the described first light splitting eyeglass B are
Cross the 1 of rate 50%:1 light splitting eyeglass；
When trigger controller is instructed to two laser sending actions, the laser pulse that laser is sent out is first through the first light splitting
Eyeglass A is once divided, and the laser through the first light splitting eyeglass A reflections carries out secondary light splitting through the second light splitting eyeglass；Through second
The laser of light splitting lens reflecting and one focusing lens of directive after full-reverse lens B reflections, through the laser of the second light splitting eyeglass
It is divided three times by the first light splitting eyeglass B again, through another focusing lens of laser directive of the first light splitting eyeglass B, by first
The laser of light splitting eyeglass B reflections directive third gathering eyeglass after full-reverse lens C reflections；Finally, energy is equal after light splitting
Parallel laser after respective focusing lens focus on respectively, across high transmissive optical glass, light hole after focus on triggering target material surface；
It is reflected through the laser of the first light splitting eyeglass A through full-reverse lens A, injects another identical light splitting optical path.
Four light splitting optical path common properties give birth to the equal parallel laser of 12 road energy, and three tunnels that every light splitting optical path generates are parallel
Laser is injected in same laser-triggered vacuum gap, acts on three triggering targets of cathode surface.
The beneficial effects of the utility model：The utility model uses four plate laser-triggered vacuum gap series, leads to
It crosses and the rational serial arrangement in each gap is set, voltage is uniformly distributed between making four vacuum gaps, is met four fracture of high pressure and is swashed
The synchronization conducting demand of light Triggered Vacuum Switch, promotes its applied voltage grade；It is true to design the laser triggering with multiple target electrodes
Empty gap makes vacuum gap obtain shorter conducting delay, improving laser by increasing laser with triggering the active area of target
The synchronization conduction property of Triggered Vacuum Switch, while laser ablation can be weakened to a certain extent to triggering target service life
It influences；Synchronous triggering system is designed, the equal parallel laser of multichannel energy can be generated simultaneously, realize the laser-triggered vacuum of series connection
Dwell sync is connected.
Description of the drawings
Fig. 1 is four fracture high pressure laser triggered vacuum switch structure diagrams.
Fig. 2 is plate laser-triggered vacuum inner space structure diagram.
Fig. 3 is plate laser-triggered vacuum gap inner cathode surface vertical view.
Fig. 4 is synchronous triggering system schematic diagram.
In figure：1 laser-triggered vacuum gap A；2 laser-triggered vacuum gap B；3 laser-triggered vacuum clearance Cs；4 laser touch
Send out vacuum gap D；5 high-voltage connection terminals；6 low-voltage wiring terminals；7 wire connection terminals；8 supporting insulators；9 insulation columns；10 is cloudy
Pole conducting rod；11 conductive anode rods；12 incident lasers；13 pedestals；14 double-deck pallets；15 insulation crusts；16 upper end cover flanges；17
Bottom end cover flange；18 baffle lids；19 high transmissive optical glass；20 sealings can valve；21 shielding cases；22 anode contacts；23 cathode contacts；
24 light holes；25 triggering targets；26 target electrodes；27 trigger controllers；28 telecommunication optical fibers；29 lasers；30 first light splitting eyeglasses
A；31 full-reverse lens A；32 second light splitting eyeglasses；33 full-reverse lens B；34 first light splitting eyeglass B；35 full-reverse lens C；36 focus lamps
Piece.
Specific embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with technical solution and attached drawing.
With reference to Fig. 1~Fig. 4, a kind of four fracture laser triggered vacuum switch of high pressure includes four plate laser connected
Triggered vaccum gap and synchronous triggering system；
Four fracture laser triggered vacuum switch of high pressure passes through the high-voltage connection terminal 5 and vacuum space on vacuum gap A1 anodes
Low-voltage wiring terminal 6 on gap D4 cathodes is connect with external system；Four vacuum gaps are respectively positioned at four tops of isosceles trapezoid
Point, two vacuum gap lines and ground angle on the bevel edge of both sides are 45 °, and voltage's distribiuting closes between this arrangement can make gap
System is more uniformly distributed；Four vacuum gaps are placed vertically, and each gap joins end to end successively through several wire connection terminals 7, by more
A supporting insulator 8 or hollow insulation column 9 are separately fixed on two layers of pallet 14, and laser is reserved on double-deck pallet 14
Channel；For high pressure laser triggered vacuum switch is made to obtain best conduction property, four vacuum gaps use positive polarity triggering side
Formula.
The High Power Laser Pulses that two lasers are sent out form equal parallel of 12 road energy through four light splitting optical paths and swash
Light, every light splitting optical path generate three road parallel lasers, form four groups of incident lasers 12 altogether, incident laser 12 pass through it is sealed can valve
20 are sealed in the high transmissive optical glass 19 at the top of conductive anode rod 11, laser channeling, anode contact in hollow anode conducting rod 11
After three light holes 24 on 22 surfaces, three triggering targets 25 on vertical 23 surface of bombarding cathode contact, laser is with triggering target
Interaction generates a large amount of initial plasmas, makes plate laser-triggered vacuum gap fast conducting；To avoid outdoor use
When in air sundries or the filthy influence to light path laser transmittance, encapsulation process, focusing lens can be done to each section in light path
Preceding light splitting optical path is partially disposed in low potential, and 12 road laser after light splitting are transmitted to focus lamp by 12 laser fibers
Before piece, then line focus eyeglass focuses on, by laser action in triggering target.
After trigger controller 27 receives external system action command, sent simultaneously to two lasers 29 through telecommunication optical fiber 28
Action command, the laser pulse that laser 29 is sent out form Multichannel Parallel laser after light path is divided, focuses on, make simultaneously respectively
For each 25 surface of vacuum gap internal trigger target, a large amount of initial plasmas are generated, four laser-triggered vacuum gaps are in phase
It is simultaneously turned on rapidly under near operating voltage effect, the completion closed action that high pressure laser triggered vacuum switch is quick, synchronous.
Claims (2)
1. a kind of four fracture laser triggered vacuum switch of high pressure, which is characterized in that connect including synchronous triggering system, four flat
Template laser-triggered vacuum gap, high-voltage connection terminal (5), wire connection terminal (7), low-voltage wiring terminal (6), supporting insulator
(8), hollow insulation column (9), double-deck pallet (14) and pedestal (13)；
Four plate laser-triggered vacuum gaps join end to end, and form an isosceles trapezoid, and each plate laser touches
Send out the apex that vacuum gap is located at isosceles trapezoid respectively, line and the ground in the plate laser-triggered vacuum gap in the same side two
The angle in face is 45 °；Four fracture laser triggered vacuum switch of high pressure through high-voltage connection terminal (5), low-voltage wiring terminal (6) with it is outer
Portion's system connection；It is erected respectively by supporting insulator (8) and/or insulation column (9) in each plate laser-triggered vacuum gap
It is directly fixed on double-deck pallet (14), the mechanical stability and external insulation demand, pedestal (13) for ensureing switch are set to double-deck frame
Below platform (14), it is used to support entire four fracture laser triggered vacuum switch of high pressure；
The plate laser-triggered vacuum gap includes insulation crust (15), upper end cover flange (16), bottom end cover flange
(17), conductive anode rod (11), cathode conducting rod (10), barrier lid (18), high transmissive optical glass (19), sealing can valve (20),
Shielding case (21), anode contact (22), cathode contact (23), light hole (24), triggering target (25) and target electrode (26)；
The insulation crust (15) be the cylindrical cavity with cluster parachute, upper and lower ends respectively by upper end cover flange (16), under
End cap flange (17) seals；Conductive anode rod (11) is hollow cylinder, is realized and sealed by upper end cover flange (16)；Cathode is conductive
Bar (10) is tightly connected with bottom end cover flange (17)；Baffle lid (18) is connected at the top of conductive anode rod (11), baffle lid (18) is interior
Embedded with high transmissive optical glass (19) and sealing can valve (20), high transmissive optical glass (19) it is sealed can valve (20) be sealedly connected on sun
The top of pole conducting rod (11) ensures to provide laser channeling while vacuum degree in triggered gap；
Anode contact (22) and cathode contact (23) are positioned opposite, are respectively positioned in shielding case (21), anode contact (22) center is set
There are multiple light holes (24), each light hole (24) is positioned at a regular polygon vertex concentric with anode contact, each light hole
(24) it is corresponded with the position of the multiple target electrodes in cathode contact (23) surface (26)；Trigger the repressed rear filling of target (25)
In target electrode (26), the position of triggering target (25) is slightly below cathode contact (23) surface；Incident laser (12) is through high light transmission
The light hole (24) learned under glass (19) and conductive anode rod (11) acts on target electrode (26) internal trigger target (25)；
The synchronous triggering system, including trigger controller (27), telecommunication optical fiber (28), two lasers (29), two group
One light splitting eyeglass A (30), two groups of full-reverse lens A (31) light splitting optical path identical with four structures；The first light splitting eyeglass A
(30) it is the 1 of transmitance 50%:1 light splitting eyeglass；
The trigger controller (27) controls two lasers (29), every laser (29) respectively by telecommunication optical fiber (28)
Corresponding one group of first light splitting eyeglass A (30), one group of full-reverse lens A (31) and two light splitting optical paths, what laser (29) was sent out swashs
Light is divided first through the first light splitting eyeglass A (30) becomes the equal laser of two-way energy, is reflected through the first light splitting eyeglass A (30)
Laser enters first light splitting optical path, is reflected into through the another way laser of the first light splitting eyeglass A (30) through full-reverse lens A (31)
Enter Article 2 light splitting optical path；
Every light splitting optical path includes multiple light splitting eyeglasses, multiple full-reverse lens and multiple focusing lens, light splitting optical path and swashs incidence
Light is divided into the equal parallel laser of multi beam energy；Be divided eyeglass light splitting ratio, position and quantity and full-reverse lens position,
The position and quantity of quantity and focusing lens match, and make finally to inject the laser beam in plate laser-triggered vacuum gap
Number it is identical with light hole (24) number；
After the action command that trigger controller (27) receives external system through remote fiber, through telecommunication optical fiber (28) respectively to two
Laser (29) sends trigger signal, and the laser that laser (29) is sent out respectively enters four light splitting optical paths and is divided, and is divided
Laser afterwards focuses on triggering across high transmissive optical glass (19), light hole after each focusing lens (36) focusing after (24)
Four plate laser-triggered vacuum Dwell sync conductings are realized on target (25) surface.
A kind of 2. four fracture laser triggered vacuum switch of high pressure according to claim 1, which is characterized in that the light splitting
Light path includes the second light splitting eyeglass (32), full-reverse lens B (33), the first light splitting eyeglass B (34), full-reverse lens C (35) and three
Focusing lens (36)；The second light splitting eyeglass (32) is the 2 of transmitance 66%:1 light splitting eyeglass, first spectroscope
Piece B (34) is the 1 of transmitance 50%:1 light splitting eyeglass；
When trigger controller (27) is instructed to two laser (29) sending actions, the laser pulse that laser (29) is sent out first passes through
First light splitting eyeglass A (30) is once divided, through the laser that the first light splitting eyeglass A (30) reflects through the second light splitting eyeglass (32)
Carry out secondary light splitting；The laser reflected through the second light splitting eyeglass (32) one focusing of directive after full-reverse lens B (33) reflections again
Eyeglass (36) is divided through the laser of the second light splitting eyeglass (32) by the first light splitting eyeglass B (34), three times again through first
Another focusing lens of laser directive (36) of eyeglass B (34) are divided, by the laser of the first light splitting eyeglass B (34) reflections through total reflective mirror
Directive third gathering eyeglass (36) after piece C (35) reflections；Finally, after light splitting the equal parallel laser of energy through each self-focus lens
After piece (36) focuses on respectively, across high transmissive optical glass (19), light hole (24) after focus on triggering target (25) surface；Through
The laser of first light splitting eyeglass A (30) is reflected through full-reverse lens A (31), injects another identical light splitting optical path；
Four light splitting optical path common properties give birth to the equal parallel laser of 12 road energy, the three road parallel lasers that every light splitting optical path generates
It injects in same plate laser-triggered vacuum gap, acts on three triggering targets of cathode surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721867052.4U CN207588826U (en) | 2017-12-28 | 2017-12-28 | A kind of four fracture laser triggered vacuum switch of high pressure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721867052.4U CN207588826U (en) | 2017-12-28 | 2017-12-28 | A kind of four fracture laser triggered vacuum switch of high pressure |
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| Publication Number | Publication Date |
|---|---|
| CN207588826U true CN207588826U (en) | 2018-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107888174A (en) * | 2017-12-28 | 2018-04-06 | 大连理工大学 | A kind of fracture laser triggered vacuum switch of high pressure four |
-
2017
- 2017-12-28 CN CN201721867052.4U patent/CN207588826U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107888174A (en) * | 2017-12-28 | 2018-04-06 | 大连理工大学 | A kind of fracture laser triggered vacuum switch of high pressure four |
| CN107888174B (en) * | 2017-12-28 | 2023-12-29 | 大连理工大学 | High-voltage four-fracture laser trigger vacuum switch |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180706 Effective date of abandoning: 20231229 |