CN207579623U - Charging system for electric automobile based on wireless power transmission - Google Patents
Charging system for electric automobile based on wireless power transmission Download PDFInfo
- Publication number
- CN207579623U CN207579623U CN201721754713.2U CN201721754713U CN207579623U CN 207579623 U CN207579623 U CN 207579623U CN 201721754713 U CN201721754713 U CN 201721754713U CN 207579623 U CN207579623 U CN 207579623U
- Authority
- CN
- China
- Prior art keywords
- module
- charging
- output terminal
- input terminal
- rectifier
- 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.)
- Expired - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
Charging system for electric automobile based on wireless power transmission, including charging pile, radio energy reception device；The charging pile includes elevating control part, automatic contraposition device, radio energy emitter.The elevating control part includes signal acquisition module, the first signal processing module, first microprocessor, the first drive module, the first execution module, the second execution module.The automatic contraposition device receives system with system by signal transmitting system and forms.The radio energy emitter includes supply port, the first rectifier, the first DC DC converters, high-frequency inverter, transmitting coil, wired DC charging module, wired AC charging module.The radio energy reception device includes receiving coil, the second rectifier, the 2nd DC DC converters, battery access interface.The utility model uses power supply of the wind and solar hybrid generating system as the electric automobile charging pile, solves the problems, such as that the generating voltage of the grid-connected power generation systems such as wind-light complementary system output is relatively low.
Description
Technical field
The utility model is related to a kind of electric automobile charging pile, specifically a kind of electric vehicle based on wireless power transmission
Charging system.
Background technology
With fossil energy exhaustion and the pollution getting worse of environment, goal displacement is arrived new energy by countries in the world one after another
With using, wind and solar hybrid generating system is also gazed at as a kind of outstanding grid-connected power generation system by vast for exploitation；
Meanwhile the quality product that electric vehicle is used as new energy, how wind light mutual complementing is sent out into system and charged for electric vehicle, with
And how efficiently, it is safe to charge to electric vehicle, also become the topic being increasingly concerned.Therefore research is a for scene
The electric vehicle wireless charging stake of complementary power generation system will be particularly significant.
Invention content
The utility model provides a kind of charging system for electric automobile based on wireless power transmission, using wind light mutual complementing power generation
Power supply of the system as the electric automobile charging pile solves the hair of the grid-connected power generation systems such as wind-light complementary system output
The problem of piezoelectric voltage is relatively low.
The technical solution that the utility model is taken is：
Charging system for electric automobile based on wireless power transmission, including charging pile, radio energy reception device；It is described to fill
Electric stake includes elevating control part, automatic contraposition device, radio energy emitter.
The elevating control part includes signal acquisition module, the first signal processing module, first microprocessor, the first drive
Dynamic model block, the first execution module, the second execution module.The input of the output terminal of signal acquisition module and the first signal processing module
End connection, the first signal processing module output terminal connect with first microprocessor input terminal, the output terminal of first microprocessor and
The input terminal connection of first drive module, the first drive module output terminal are held respectively with the input terminal of the first execution module and second
The input terminal connection of row module.
The automatic contraposition device receives system with system by signal transmitting system and forms, and signal transmitting system includes infrared
Transmitting module, system receive system and include infrared receiving module, second signal processing module, the second microprocessor, the second driving
Module.The input terminal of the output terminal of infrared transmission module and infrared receiving module connects, the output terminal of infrared receiving module and the
Binary signal processing module input terminal connects, and second signal processing module output terminal is connect with the second microprocessor input, and second
9 output terminal of microprocessor is connect with the second drive module input terminal.
The radio energy emitter includes supply port, the first rectifier, the first DC-DC converter, high-frequency inversion
Device, transmitting coil, wired DC charging module, wired AC charging module.Supply port output terminal and the first rectifier input
End connection, the first rectifier output end are connect with the first DC-DC converter input terminal, the first DC-DC converter output terminal difference
It is connect with high-frequency inverter, wired DC charging module, wired AC charging module input；High-frequency inverter output terminal and hair
Penetrate coil input end connection.
The radio energy reception device includes receiving coil, the second rectifier, the second DC-DC converter, battery access
Port.Receiving coil output terminal is connect with the second rectifier input, and the second rectifier output end and the second DC-DC converter are defeated
Enter end connection, the second DC-DC converter output terminal is connect with battery access interface.
The charging pile further includes overhead door, six pulleys, and six pulleys are positioned over below radio energy emitter, left
Right each one, front and rear each two, each pulley lower section is provided with pulley padlock, and pulley connects the second drive module.
First execution module controls overhead door lifting；First execution module unlocks pulley padlock and carries out
Control.
Second execution module controls charging pile lifting.
The infrared transmission module includes four infrared transmitters, is respectively placed in four angles of radio energy reception device
On, the infrared receiving module includes an infrared remote receiver.
The supply port connects wind and solar hybrid generating system.
Compared with prior art, charging system for electric automobile of the utility model based on wireless power transmission has following
Advantageous effect：
（1）：Using wind and solar hybrid generating system as a kind of novel electric vehicle charging pile based on wireless power transmission
Power supply；
（2）：Using lift wireless charging stake, the rise when carrying out wired charging, when wireless charging, falls, and meets more
Sample obtains charge requirement, meanwhile, during wireless charging, wireless charging stake region can be used as parking stall, saved big
Land area is measured, adapts to the insufficient situation of urban land area；
（3）：The utilization of automatic alignment apparatus avoids people and parking position is not allowed to lead when parking carries out wireless charging
The puzzlement that charge efficiency is caused to reduce；
（4）：Three-phase three-switch three-level VIENNA type rectifiers, the production cost and electric energy for reducing charging pile convert
Efficiency；
（5）：Using novel high-gain DC converter, solves the output of the grid-connected power generation systems such as wind-light complementary system
Generating voltage it is relatively low the problem of；
（6）：The utilization of overhead door and pulley padlock, ensure that in the case where carrying out wired charging pattern, automatic alignment apparatus goes out
Situation about now malfunctioning；
（7）：The utilization of pulley blocks ensure that the high speed of automatic alignment apparatus is effectively run.
Description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples：
Fig. 1 arranges schematic diagram for the utility model device；
Wherein：A- charging piles, b- wind and solar hybrid generating systems, c- batteries, L0- ground.
Fig. 2 is the utility model apparatus structure schematic diagram；
Fig. 3 is the elevating control part-structure schematic diagram of the utility model.
Fig. 4 is the automatic contraposition device structure diagram of the utility model.
Fig. 5 is the charging work principle schematic of the utility model.
Fig. 6 is the three-phase three-switch three-level VIENNA type rectifier topology structure schematic diagrames of the utility model.
Fig. 7 is the novel high-gain DC converter topological structure schematic diagram of the utility model.
Fig. 8 is that the novel capacitor of the utility model presses more level high-frequency inverter topology schematic diagrames certainly.
Fig. 9 is the wireless power transmission principle schematic of the utility model.
Specific embodiment
As shown in Figure 1, a kind of novel electric vehicle charging pile based on wireless power transmission, including charging pile a, radio
It can reception device 9.
As shown in Fig. 2, charging pile a includes lifting button 1, elevating control part 2, transmitting coil built-in 3, automatic right
Position device 4, radio energy emitter 5, pulley 6, overhead door 7, pulley padlock 8.The installation of overhead door 7 is as charging pile
Shell.
As shown in figure 3, the elevating control part 2 includes signal acquisition module 10, the first signal processing module 11, first
Microprocessor 12, the first drive module 13, the first execution module 14, the second execution module 15.The output of signal acquisition module 10
End is connect with the input terminal of the first signal processing module 11, and 11 output terminal of the first signal processing module and first microprocessor 12 are defeated
Enter end connection, the output terminal of first microprocessor 12 is connect with the input terminal of the first drive module 13, and the first drive module 13 is defeated
Input terminal of the outlet respectively with the input terminal of the first execution module 14 and the second execution module 15 is connect.
Signal acquisition module 10 uses DAQM-4202 type analogue collection modules.
First signal processing module 11 is using Ai Puduo section APG-01V.
First microprocessor 12 uses STM32F407 type microcontrollers.
First drive module 13 uses XD-37GB3525.
First execution module 14 uses ENMGRT-P.
Second execution module 15 uses USR-R16-T.
It is formed as shown in figure 4, the automatic contraposition device 4 receives system by signal transmitting system with system, signal transmitting
System includes infrared transmission module 16, and system receives system and includes infrared receiving module 17, second signal processing module 18, second
Microprocessor 19, the second drive module 20.The output terminal of infrared transmission module 16 is connect with the input terminal of infrared receiving module 17,
The output terminal of infrared receiving module 17 is connect with 18 input terminal of second signal processing module, 18 output terminal of second signal processing module
It is connect with 19 input terminal of the second microprocessor, 19 output terminal of the second microprocessor is connect with 20 input terminal of the second drive module.
Second signal processing module 18 is using Ai Puduo section APG-01V.
Second microprocessor 19 uses STM32F407.
Second drive module 20 uses XD-37GB3525.
As shown in figure 5, the radio energy emitter 5 includes supply port 21, the first rectifier 22, the first DC-DC
Converter 23, high-frequency inverter 24, transmitting coil 25, wired DC charging module 30, wired AC charging module 31；
21 output terminal of supply port is connect with 22 input terminal of the first rectifier, 22 output terminal of the first rectifier and the first DC-
23 input terminal of DC converters connect, 23 output terminal of the first DC-DC converter respectively with high-frequency inverter 24, wired DC charging mould
Block 30, the connection of wired 31 input terminal of AC charging module；24 output terminal of high-frequency inverter is connect with 25 input terminal of transmitting coil.
As shown in figure 5, the radio energy reception device 9 includes receiving coil 26, the second rectifier 27, the 2nd DC-DC
Converter 28, battery access interface 29.26 output terminal of receiving coil is connect with 27 input terminal of the second rectifier, the second rectifier 27
Output terminal is connect with 28 input terminal of the second DC-DC converter, and 28 output terminal of the second DC-DC converter connects with battery access interface 29
It connects.
As shown in figure 5, transmitting coil built-in 3 includes transmitting coil 25.
First rectifier 22 and the second rectifier 27 use three-phase three-switch three-level VIENNA type rectifiers, circuit knot
Structure is as shown in fig. 6, have the outstanding features such as switching tube quantity is few, and control circuit is simple, and this patent is directed to VIENNA rectifier
Non-linear behavior, employ a kind of VIENNA rectifier being combined based on passivity with Sliding mode variable structure control and control plan
Slightly, the double-closed-loop control algorithm of passive coherent locating is used using Sliding mode variable structure control, current inner loop in outer voltage, makes rectification
Device is provided with better robustness, dynamic characteristic, Hangzhoupro interference.
First DC-DC converter 23 and the second DC-DC converter 28 use a kind of novel high-gain DC converter, use
It is relatively low in the generating voltage for solving the problems, such as the output of the grid-connected power generation systems such as wind-light complementary system.Its circuit structure such as Fig. 7 institutes
Show, the DC converter, can effectively solve low-pressure end power device electric current existing for conventional transducers and voltage stress is big
The problem of, and leakage inductance energy can be effectively recycled, while duty ratio is kept, obtain the typical converter more identical than the number of turn more
High performance and gain.
High-frequency inverter 24 presses more level high-frequency inverters certainly using a kind of novel capacitor, for overcoming general inverter
The shortcomings that efficiency is too low and is unsuitable for using under this kind of number of power sources limited circumstances of electric vehicle, circuit structure such as Fig. 8
It is shown, have many advantages, such as that independent current source is few, conduction loss is low, efficiency of transmission is high, and solves the problems, such as that capacitance voltage is unbalanced,
Modulation circuit and modulation algorithm is made to become simple.
As shown in figure 9, infrared transmission module 16 includes four infrared transmitters, it is respectively placed in radio energy reception device 9
Four angles on, and transmitting coil 25 using magnetic misfortune close resonance type wireless electric energy transmission technology, have long transmission distance, displacement hold
Wrong big, using flexible, the features such as penetration power is strong, efficiency of transmission is high.
The application method of the charging unit, it includes the following steps：
1）, signal acquisition module 10 be used for lift enabling signal acquisition, the first signal processing mould is transferred to after acquisition
Block 11 is transferred to first microprocessor 12 after the first signal processing module 11 is handled signal, into microprocessor excessively
After algorithm operation, sent out to the first drive module 13 as a result, the first drive module 13 is instructed, 15 work of the second execution module
Make, when charging pile rises, device is in wired charging pattern, and when charging pile declines, device is in wireless charging pattern；
2）, when charging pile declines, supply port 21 transfers electrical energy into the first rectifier 22, through over commutation, by three-phase
AC conversion be direct current after be transferred to the first DC-DC converter 23, boosted by the first DC-DC converter 23, and
DC power transmission after boosting is subjected to inversion processing to high-frequency inverter 24, by DC conversion to be transmitted after three-phase alternating current
To transmitting coil 25, direct current is passed in the form of radio energy, and second is transferred to after being received by receiving coil 26
Rectifier 27 carries out rectification, and three-phase alternating current is converted into after direct current and is transferred to the second DC-DC converter 28, passes through DC-DC
After converter carries out boosting processing, battery access interface 29 is transferred to, is carried out from battery access interface 29 to batteries of electric automobile
Charging.
3）, when charging pile rises, supply port 21 transfers electrical energy into the first rectifier 22, through over commutation, by three-phase
AC conversion gives wired DC charging mould to be transferred to the first DC-DC converter 23, the first DC-DC converter 23 after direct current
Block 30 is powered.
4）When charging pile rises, supply port 21 transfers electrical energy into the first rectifier 22, and through over commutation, three are intersected
Galvanic electricity is transferred to the first DC-DC converter 23 after being converted into direct current, is boosted by the first DC-DC converter 23, and will
DC power transmission after boosting carries out inversion processing to high-frequency inverter 24, by DC conversion to be transferred to after three-phase alternating current
Wired DC charging module 30.
Wherein：Step（2）In,
When charging pile declines, the first drive module 13 is instructed, and the first execution module 14 works, and beats overhead door 7
It opens, pulley padlock 8 unlocks, and automatic contraposition device 4 works at this time, and infrared receiving module 17, which receives, to be come from infrared hair and set module
Second signal processing module 18 is transferred to after the signal of 16 transmittings；Signal is filtered, amplifies by second signal processing module 18,
The transformations such as A/D conversions, are transferred to the second microprocessor 19, the second microprocessor 19 is according to four angles after generating digital signal
The different infrared signals penetrated of shaving one's head carry out algorithm operation, judge transmitting coil and receiving coil whether face, if not face, sends out
Go out instruction, the second drive module 20 is made to work, 6 pulley blocks of driving pulley 6 are moved, until receiving coil and emission lines
After circle alignment, it is stopped.
When specifically used, it is divided into both of which：
（One）Wireless charging pattern：
When lifting button is not actuated, charging pile is now placed in underground, in wireless charging pattern, by light method electricity generation system
The electric energy of transmission transfers electrical energy into the first rectifier 22 after cable underground is transferred to supply port, by supply port, warp
Three-phase alternating current is converted into after direct current and is transferred to the first DC-DC converter 23, passes through the first DC-DC converter by over commutation
23 boost, and the DC power transmission after boosting to high-frequency inverter is carried out inversion processing, are three-phase by DC conversion
Transmitting coil is transferred to after alternating current, direct current is passed in the form of radio energy, and is passed after being received by receiving coil
It is defeated to carry out rectification, three-phase alternating current is converted into after direct current and is transferred to the second DC-DC converter 28 to the second rectifier 27,
Battery access interface is transferred to after carrying out boosting processing by the second DC-DC converter 28, from battery access interface to electronic vapour
Vehicle battery charges.
Wherein, after batteries of electric automobile carries out wireless charging, the work of elevating control part, built-in second drive module 20
Work, sends out instruction to the first execution module 14, opens overhead door 7, the unlock of pulley padlock, at this time automatic contraposition device work
Make, infrared receiving module, which receives to come from after infrared hair sets the signal of module transmitting, is transferred to signal processing module；At signal
The transformations such as signal is filtered, amplifies by reason module, A/D conversions, the second microprocessor is transferred to after generating digital signal
19, the second microprocessor 19 carries out algorithm operation according to the different infrared signals that four corners emit, and judges transmitting coil with connecing
Take-up circle whether face, if not face, send out instruction, the second drive module 20 made to work, 6 pulley blocks of driving pulley into
Row movement, after receiving coil is aligned with transmitting coil, is stopped.
（Two）, wired charging pattern：
When lifting button is not actuated, the work of elevating control part, built-in first drive module 13 works, to execution module
Instruction is sent out, charging pile is made to go up ground, charging pile is in wired charging pattern at this time, is used for by wired charging module to having
Line DC charging is powered to be powered with wired AC charging module for wired AC charging.
Claims (6)
1. the charging system for electric automobile based on wireless power transmission, it is characterised in that including：Charging pile（a）, radio energy connects
Receiving apparatus（9）；The charging pile（a）Including elevating control part（2）, automatic contraposition device（4）, radio energy emitter
（5）；The elevating control part（2）Including signal acquisition module（10）, the first signal processing module（11）, first microprocessor
（12）, the first drive module（13）, the first execution module（14）, the second execution module（15）；
Signal acquisition module（10）Output terminal and the first signal processing module（11）Input terminal connection, the first signal processing mould
Block（11）Output terminal and first microprocessor（12）Input terminal connects, first microprocessor（12）Output terminal and first driving mould
Block（13）Input terminal connection, the first drive module（13）Output terminal respectively with the first execution module（14）Input terminal and second
Execution module（15）Input terminal connection；
The automatic contraposition device（4）System is received by signal transmitting system with system to form, signal transmitting system includes infrared
Transmitting module（16）, system receive system include infrared receiving module（17）, second signal processing module（18）, the second microprocessor
Device（19）, the second drive module（20）；
Infrared transmission module（16）Output terminal and infrared receiving module（17）Input terminal connection, infrared receiving module（17）'s
Output terminal and second signal processing module（18）Input terminal connects, second signal processing module（18）Output terminal and the second microprocessor
Device（19）Input terminal connects, the second microprocessor（19）Output terminal and the second drive module（20）Input terminal connects；
The radio energy emitter（5）Including supply port（21）, the first rectifier（22）, the first DC-DC converter
（23）, high-frequency inverter（24）, transmitting coil（25）, wired DC charging module（30）, wired AC charging module（31）；
Supply port（21）Output terminal and the first rectifier（22）Input terminal connects, the first rectifier（22）Output terminal and first
DC-DC converter（23）Input terminal connects, the first DC-DC converter（23）Output terminal respectively with high-frequency inverter（24）, it is wired
DC charging module（30）, wired AC charging module（31）Input terminal connects；High-frequency inverter（24）Output terminal and emission lines
Circle（25）Input terminal connects；
The radio energy reception device（9）Including receiving coil（26）, the second rectifier（27）, the second DC-DC converter
（28）, battery access interface（29）；
Receiving coil（26）Output terminal and the second rectifier（27）Input terminal connects, the second rectifier（27）Output terminal and second
DC-DC converter（28）Input terminal connects, the second DC-DC converter（28）Output terminal and battery access interface（29）Connection.
2. the charging system for electric automobile based on wireless power transmission according to claim 1, it is characterised in that：The charging
Stake（a）Further include overhead door（7）, six pulleys（6）, six pulleys（6）It is positioned over radio energy emitter（5）Lower section, it is left
Right each one, front and rear each two, each pulley（6）Lower section is provided with pulley padlock（8）, pulley（6）Connection the second driving mould
Block（20）.
3. the charging system for electric automobile based on wireless power transmission according to claim 2, it is characterised in that：Described first
Execution module（14）, to overhead door（7）Lifting is controlled；First execution module（14）To pulley padlock（8）Unlock is controlled
System.
4. the charging system for electric automobile based on wireless power transmission according to claim 1, it is characterised in that：Described second
Execution module（15）, charging pile lifting is controlled.
5. the charging system for electric automobile based on wireless power transmission according to claim 1, it is characterised in that：It is described infrared
Transmitting module（16）Including four infrared transmitters, it is respectively placed in radio energy reception device（9）Four angles on, it is described infrared
Receiving module（17）Including an infrared remote receiver.
6. the charging system for electric automobile based on wireless power transmission according to claim 1, it is characterised in that：The power supply
Port（21）Connect wind and solar hybrid generating system（b）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721754713.2U CN207579623U (en) | 2017-12-15 | 2017-12-15 | Charging system for electric automobile based on wireless power transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721754713.2U CN207579623U (en) | 2017-12-15 | 2017-12-15 | Charging system for electric automobile based on wireless power transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207579623U true CN207579623U (en) | 2018-07-06 |
Family
ID=62738454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721754713.2U Expired - Fee Related CN207579623U (en) | 2017-12-15 | 2017-12-15 | Charging system for electric automobile based on wireless power transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207579623U (en) |
-
2017
- 2017-12-15 CN CN201721754713.2U patent/CN207579623U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107914596A (en) | Charging system for electric automobile based on wireless power transmission | |
| CN106100149B (en) | Wireless charging system and wireless charging method | |
| CN201438644U (en) | Vehicle-mounted charger | |
| CN104821643A (en) | Robot wireless charging device | |
| CN104659925A (en) | Wireless power transceiving method and device | |
| CN104092272A (en) | Optimal configuration method of electric automobile charging system and power distribution network | |
| CN106427616B (en) | A kind of composite power source based on charge pump and its switching method in different operating modes | |
| CN107069856A (en) | Crusing robot intelligence continuation of the journey wireless charging system and its charging method | |
| CN206086423U (en) | Wind -force, photovoltaic and electric wire netting divide wireless charging system of electric automobile of period power supply | |
| CN106487063A (en) | The wireless charging device of the pure electric ship based on microgrid energy storage and method | |
| CN106026343A (en) | Solar wireless charging device | |
| CN206344710U (en) | Wireless charging system for electric automobile | |
| CN103972996B (en) | The method of energy and information bidirectional wireless transmission | |
| CN207579623U (en) | Charging system for electric automobile based on wireless power transmission | |
| CN201985600U (en) | Traction frequency converter circuit with charging function in electric vehicle | |
| CN204349856U (en) | For the electric power system of transmission line monitoring terminal | |
| CN207579603U (en) | Automatically correct the wireless electric vehicle charging device of coil position | |
| CN206850503U (en) | A kind of efficient wireless charging device of low-voltage and high-current for AGV | |
| CN106936221A (en) | The wireless power supply system being powered to large power-consuming equipment | |
| CN215990600U (en) | Colliery is from power generation facility in pit | |
| CN206135502U (en) | Wireless charging system of robot sweeps floor | |
| CN214069676U (en) | Wireless power supply system of integrated intelligent switch | |
| CN110077248B (en) | Positioning wireless charging device, charging method, control method and control structure | |
| CN203801099U (en) | Power circuit and microwave oven | |
| CN113748043A (en) | Charger, slow starting method, electric vehicle and charging system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180706 Termination date: 20181215 |