CN208904733U - A kind of vehicle intelligent charger - Google Patents
A kind of vehicle intelligent charger Download PDFInfo
- Publication number
- CN208904733U CN208904733U CN201821065352.5U CN201821065352U CN208904733U CN 208904733 U CN208904733 U CN 208904733U CN 201821065352 U CN201821065352 U CN 201821065352U CN 208904733 U CN208904733 U CN 208904733U
- Authority
- CN
- China
- Prior art keywords
- controller
- transistor
- resistance
- module
- operational amplifier
- 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
-
- 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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- 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
- Y02T10/72—Electric energy management in electromobility
-
- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
-
- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model provides a kind of vehicle intelligent charger, including 220V alternating current, AC/DC converter, temperature sensor, voltage detection module, current detection module, signal conditioning circuit, controller, drive amplification circuit, relay, battery, WiFi module, cloud data platform, cell phone application, bluetooth module, acoustic-optic alarm.The utility model is combined by WiFi module, cloud platform, cell phone application, controller, is realized order and the wireless remote transmission of data, is realized user to the remote real-time monitoring of accumulator charging and discharging state and long-range control;Host computer remotely controls controller by Zigbee wireless module.
Description
Technical field
The utility model relates to intelligent charger technical fields, and in particular to a kind of vehicle intelligent charger.
Background technique
The service life of Vehicular accumulator cell is generally two Nian Zhisan, mainly with charge and discharge number and charging when operating mode
It is related.When on-vehicle battery is in under-voltage state, need to carry out energy supply immediately, once cell voltage is too low, not only vapour
Vehicle starts unsuccessfully, and battery can very likely damage.The on-vehicle battery of different model currently on the market can only use its mating charger
It charges, and the charging process of charger is only " constant current is flung ", and the charged state of charger not would know that,
Battery performance and charging requirement can not be judged, this charger charging method is very big to cell damage, is also unfavorable for
Environmental protection and energy saving.
Utility model content
(1) the technical issues of solving
The utility model is directed to the defect problem of above-mentioned onboard charger, provide it is a kind of by controller, signal conditioning circuit,
The vehicle intelligent charger that WiFi module, cloud data platform, cell phone application, bluetooth module, acoustic-optic alarm are constituted.
(2) technical solution
In order to achieve the above object, the utility model is achieved by the following technical programs:
A kind of vehicle intelligent charger, including 220V alternating current, AC/DC converter, temperature sensor, voltage detecting mould
Block, current detection module, signal conditioning circuit, controller, drive amplification circuit, relay, battery, WiFi module, cloud number
According to platform, cell phone application, bluetooth module, acoustic-optic alarm;220V alternating current is connected to the battery by AC/DC converter;It stores
Battery is connected by temperature sensor, voltage detection module, current detection module with signal conditioning circuit, signal conditioning circuit and
Controller is connected;Controller is connected to the battery by drive amplification circuit, relay;Controller passes through WiFi module and cloud number
It is connected according to platform, cloud data platform is connected with cell phone application, and cell phone application is connected by bluetooth module;Acoustic-optic alarm is as control
The peripheral circuit of device processed, is connected with controller.
Further, the controller is DSP2812 or DSP28335.
Further, the controller include power module, touch screen, USB interface, liquid crystal display, charging indicator light,
Zigbee wireless module, host computer;Power module, touch screen, USB interface, liquid crystal display, charging indicator light, Zigbee without
Wire module is that the peripheral circuit of controller is connected with controller respectively;Controller is carried out by Zigbee wireless module and host computer
Wireless communication.
Further, the WiFi module is ESP8266 module.
Further, the signal conditioning circuit includes operational amplifier U1, U2, resistance R1, R2, R3, R4, R5, R6, electricity
Hold C1, C2, the one end resistance R1 is connected with one end of capacitor C1, C2 respectively, the reverse phase of the capacitor C1 other end and operational amplifier U1
Input terminal is connected, and the other end of capacitor C2 is connected with the output end of operational amplifier U1, the inverting input terminal of operational amplifier U1
Resistance R3 is connected between output end, the non-inverting input terminal of operational amplifier U1 is grounded by resistance R2, operational amplifier U1
Output end be connected with the inverting input terminal of operational amplifier U2 by resistance R4, the homophase input of operational amplifier U2 terminates
Ground is connected with resistance R6, the inverting input terminal of operational amplifier U2 between the inverting input terminal and output end of operational amplifier U2
It is connected by resistance R5 with the resistance R1 other end.
Further, described operational amplifier U1, U2 are operational amplifier TL082.
Further, the drive amplification circuit includes power supply VCC, transistor VT1, VT2, VT3, resistance R7, R8, two poles
Pipe D1, capacitor C3, C4;The output signal of controller is connected with the one end resistance R8, the one end capacitor C3, transistor VT2 base stage;Crystal
The collector of pipe VT1 is connected with power supply VCC, and the base stage of transistor VT1 is connected by resistance R7 with power supply VCC, transistor VT1's
Diode D1 is connected between base stage and emitter;The resistance R8 other end and diode D1 cathode, transistor VT1 emitter,
The collector of transistor VT2, the base stage pole of transistor VT3, the emitter of transistor VT3, capacitor one end C4 are connected;Capacitor C3 mono-
End ground connection, capacitor C4 other end ground connection.
Further, described transistor VT1, VT2 are NPN type triode, and transistor VT3 is PNP type triode.
Further, the base stage of the transistor VT1 is connected with diode D1 anode, the emitter connection of transistor VT1
Diode D1 cathode, diode D1 are fast recovery diode.
(3) beneficial effect
The utility model has the beneficial effects that a kind of vehicle intelligent charger, by WiFi module, cloud platform, cell phone application,
Controller combines, and realizes order and the wireless remote transmission of data, realizes user to the long-range reality of accumulator charging and discharging state
When monitoring and long-range control;Host computer remotely controls controller by Zigbee wireless module;Signal conditioning circuit by
Two stage amplifer is constituted, and the first order filters out the interference of high-frequency signal, and second level amplifier plays buffering and buffer action;Drive amplification electricity
Road using output capacitance and load connection mutual symmetry amplifying circuit, make circuit it is light, suitable for the integrated of circuit, single supply
Power supply, circuit are light reliable.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the utility model charger functional block diagram;
Fig. 2 is controller peripheral circuit functional block diagram;
Fig. 3 is signal conditioning circuit diagram;
Fig. 4 is drive amplification circuit diagram.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
In conjunction with Fig. 1, a kind of vehicle intelligent charger, including 220V alternating current, AC/DC converter, temperature sensor, voltage
Detection module, current detection module, signal conditioning circuit, controller, drive amplification circuit, relay, battery, WiFi mould
Block, cloud data platform, cell phone application, bluetooth module, acoustic-optic alarm.
220V alternating current is connected to the battery by AC/DC converter;Battery passes through temperature sensor, voltage detecting mould
Block, current detection module are connected with signal conditioning circuit, and signal conditioning circuit is connected with controller;Controller passes through drive amplification
Circuit, relay are connected to the battery;Controller is connected by WiFi module with cloud data platform, cloud data platform and mobile phone
APP is connected, and cell phone application is connected by bluetooth module;Peripheral circuit of the acoustic-optic alarm as controller, with controller phase
Even.
Controller is used to complete the energy management operation control of accumulator cell charging and discharging, controller can be DSP2812 or
DSP28335;It is storage battery power supply that 220V alternating current, which is transformed into direct current by AC/DC converter,;Temperature sensor, voltage inspection
Survey module, current detection module respectively detects the temperature of accumulator cell charging and discharging, voltage, current signal, the temperature detected
Degree, voltage, current signal send controller to after handling by signal conditioning circuit;Controller by drive amplification circuit, after
The conducting of electrical equipment control battery charge circuit;Controller and cloud data platform pass through WiFi module progress wireless data transmission, cloud
Data platform and cell phone application carry out wireless data transmission, and cell phone application is connected with controller by bluetooth module, may be implemented to store
The long-range monitoring and long-range control of battery charging and discharging;Accumulator cell charging and discharging failure state, acoustic-optic alarm issue acousto-optic
Alarm.WiFi module can be ESP8266 module.
In conjunction with Fig. 2, controller include power module, touch screen, USB interface, liquid crystal display, charging indicator light,
Zigbee wireless module, host computer;Power module, touch screen, USB interface, liquid crystal display, charging indicator light, Zigbee without
Wire module is that the peripheral circuit of controller is connected with controller respectively;Controller is carried out by Zigbee wireless module and host computer
Wireless communication.
Power module provides electric energy for controller;Touch screen may be implemented to manually control intelligent charger;USB interface
Interface module is provided;Charging indicator light will be seen that the charged state of battery;Controller by Zigbee wireless module with it is upper
Position machine carries out wireless communication, and host computer can remotely control controller;Liquid crystal display is for showing each of battery
The working condition of parameter.
In conjunction with Fig. 3, signal conditioning circuit includes operational amplifier U1, U2, resistance R1, R2, R3, R4, R5, R6, capacitor C1,
The one end C2, resistance R1 is connected with one end of capacitor C1, C2 respectively, the inverting input terminal of the capacitor C1 other end and operational amplifier U1
It is connected, the other end of capacitor C2 is connected with the output end of operational amplifier U1, the inverting input terminal and output of operational amplifier U1
Resistance R3 is connected between end, the non-inverting input terminal of operational amplifier U1 is grounded by resistance R2, the output of operational amplifier U1
End is connected by resistance R4 with the inverting input terminal of operational amplifier U2, the non-inverting input terminal ground connection of operational amplifier U2, operation
Resistance R6 is connected between the inverting input terminal and output end of amplifier U2, the inverting input terminal of operational amplifier U2 passes through resistance
R5 is connected with the resistance R1 other end.Operational amplifier U1, U2 are operational amplifier TL082.Signal conditioning circuit is by two stage amplifer
It constitutes, the first order filters out the interference of high-frequency signal, and second level amplifier plays buffering and buffer action.
In conjunction with Fig. 4, drive amplification circuit includes power supply VCC, transistor VT1, VT2, VT3, resistance R7, R8, diode D1,
Capacitor C3, C4;The output signal of controller is connected with the one end resistance R8, the one end capacitor C3, transistor VT2 base stage;Transistor VT1
Collector be connected with power supply VCC, the base stage of transistor VT1 is connected by resistance R7 with power supply VCC, the base stage of transistor VT1
Diode D1 is connected between emitter;The resistance R8 other end and diode D1 cathode, the emitter of transistor VT1, crystal
The collector of pipe VT2, the base stage pole of transistor VT3, the emitter of transistor VT3, capacitor one end C4 are connected;Capacitor C3 mono- is terminated
Ground, capacitor C4 other end ground connection.Transistor VT1, VT2 are NPN type triode, and transistor VT3 is PNP type triode.Transistor
The base stage of VT1 is connected with diode D1 anode, and the emitter of transistor VT1 connects diode D1 cathode, and diode D1 is fast extensive
Multiple diode.Drive amplification circuit is SEPP single ended push-pull formula no output transformer amplifying circuit, using power supply power supply, from two groups of series connection
Transistor output midpoint by capacitive coupling output signal, amplifying circuit uses output capacitance no longer with output transformer
With the mutual symmetry amplifying circuit of load connection, make circuit it is light, suitable for the integrated of circuit, single supply power supply, circuit is light
Reliably.
In conclusion the utility model embodiment, vehicle intelligent charger, by WiFi module, cloud platform, cell phone application,
Controller combines, and realizes order and the wireless remote transmission of data, realizes user to the long-range reality of accumulator charging and discharging state
When monitoring and long-range control;Host computer remotely controls controller by Zigbee wireless module;Signal conditioning circuit by
Two stage amplifer is constituted, and the first order filters out the interference of high-frequency signal, and second level amplifier plays buffering and buffer action;Drive amplification electricity
Road using output capacitance and load connection mutual symmetry amplifying circuit, make circuit it is light, suitable for the integrated of circuit, single supply
Power supply, circuit are light reliable.
Above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations;Although referring to aforementioned reality
Example is applied the utility model is described in detail, those skilled in the art should understand that: it still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features;And these
It modifies or replaces, the spirit and model of various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (9)
1. a kind of vehicle intelligent charger, it is characterised in that: including 220V alternating current, AC/DC converter, temperature sensor, electricity
Press detection module, current detection module, signal conditioning circuit, controller, drive amplification circuit, relay, battery, WiFi mould
Block, cloud data platform, cell phone application, bluetooth module, acoustic-optic alarm;220V alternating current passes through AC/DC converter and battery
It is connected;Battery is connected by temperature sensor, voltage detection module, current detection module with signal conditioning circuit, signal tune
Reason circuit is connected with controller;Controller is connected to the battery by drive amplification circuit, relay;Controller passes through WiFi mould
Block is connected with cloud data platform, and cloud data platform is connected with cell phone application, and cell phone application is connected by bluetooth module;Sound-light alarm dress
The peripheral circuit as controller is set, is connected with controller.
2. a kind of vehicle intelligent charger as described in claim 1, which is characterized in that the controller be DSP2812 or
DSP28335。
3. a kind of vehicle intelligent charger as claimed in claim 2, which is characterized in that the controller include power module,
Touch screen, USB interface, liquid crystal display, charging indicator light, Zigbee wireless module, host computer;Power module, touch screen,
USB interface, liquid crystal display, charging indicator light, Zigbee wireless module be controller peripheral circuit respectively with controller phase
Even;Controller is carried out wireless communication by Zigbee wireless module with host computer.
4. a kind of vehicle intelligent charger as described in claim 1, which is characterized in that the WiFi module is ESP8266 mould
Block.
5. a kind of vehicle intelligent charger as described in claim 1, which is characterized in that the signal conditioning circuit includes operation
Amplifier U1, U2, resistance R1, R2, R3, R4, R5, R6, capacitor C1, C2, the one end resistance R1 one end phase with capacitor C1, C2 respectively
Even, the capacitor C1 other end is connected with the inverting input terminal of operational amplifier U1, and the other end of capacitor C2 is with operational amplifier U1's
Output end is connected, and resistance R3 is connected between the inverting input terminal and output end of operational amplifier U1, operational amplifier U1's is same
Phase input terminal is grounded by resistance R2, and the output end of operational amplifier U1 passes through the anti-phase input of resistance R4 and operational amplifier U2
End is connected, and the non-inverting input terminal ground connection of operational amplifier U2 connects between the inverting input terminal and output end of operational amplifier U2
There is resistance R6, the inverting input terminal of operational amplifier U2 is connected by resistance R5 with the resistance R1 other end.
6. a kind of vehicle intelligent charger as claimed in claim 5, which is characterized in that described operational amplifier U1, U2 are fortune
Calculate amplifier TL082.
7. a kind of vehicle intelligent charger as described in claim 1, which is characterized in that the drive amplification circuit includes power supply
VCC, transistor VT1, VT2, VT3, resistance R7, R8, diode D1, capacitor C3, C4;The output signal and resistance R8 mono- of controller
End, the one end capacitor C3, transistor VT2 base stage are connected;The collector of transistor VT1 is connected with power supply VCC, the base of transistor VT1
Pole is connected by resistance R7 with power supply VCC, is connected with diode D1 between the base stage and emitter of transistor VT1;Resistance R8 is another
One end and diode D1 cathode, the emitter of transistor VT1, the collector of transistor VT2, the base stage pole of transistor VT3, crystal
The emitter of pipe VT3, the one end capacitor C4 are connected;The one end capacitor C3 ground connection, capacitor C4 other end ground connection.
8. a kind of vehicle intelligent charger as claimed in claim 7, which is characterized in that described transistor VT1, VT2 are NPN type
Triode, transistor VT3 are PNP type triode.
9. a kind of vehicle intelligent charger as claimed in claim 8, which is characterized in that the base stage and two of the transistor VT1
Pole pipe D1 anode is connected, and the emitter of transistor VT1 connects diode D1 cathode, and diode D1 is fast recovery diode.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201821065352.5U CN208904733U (en) | 2018-07-06 | 2018-07-06 | A kind of vehicle intelligent charger |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201821065352.5U CN208904733U (en) | 2018-07-06 | 2018-07-06 | A kind of vehicle intelligent charger |
Publications (1)
Publication Number | Publication Date |
---|---|
CN208904733U true CN208904733U (en) | 2019-05-24 |
Family
ID=66567223
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201821065352.5U Expired - Fee Related CN208904733U (en) | 2018-07-06 | 2018-07-06 | A kind of vehicle intelligent charger |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN208904733U (en) |
-
2018
- 2018-07-06 CN CN201821065352.5U patent/CN208904733U/en not_active Expired - Fee Related
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN104597352A (en) | Power quality monitoring system | |
CN202183629U (en) | Intelligent wireless charger | |
CN206350035U (en) | A kind of Internet of Things measuring instrument and system with remote firmware updating function | |
CN204334632U (en) | A kind of master-slave communication circuit and air conditioner | |
CN104617620A (en) | Mobile power source and adapter | |
CN207173346U (en) | Anti-overcharge device applied to intelligent charging spot | |
CN204705377U (en) | A kind of multifunction soil parameter measuring apparatus based on sun power and Zigbee | |
CN208904733U (en) | A kind of vehicle intelligent charger | |
CN205157666U (en) | Power equipment monitoring system based on thing networking | |
CN112615213A (en) | Intelligent socket | |
CN104426139A (en) | Anti-reverse battery charging protecting circuit | |
CN206542236U (en) | Charging circuit and system | |
CN103475074B (en) | Unloaded low-loss battery charger | |
CN208369289U (en) | A kind of charging pile over-current and -load protection system based on NB-IOT | |
CN209312955U (en) | A kind of battery modules charging temperature alarm system | |
CN205265284U (en) | Battery charging/ discharging management device and metering device who makes with device | |
CN205140192U (en) | Terminal of zooming out that power consumption information acquisition GPRS is wireless based on 10kV induction electricity -taking | |
CN204925727U (en) | Information acquisition device based on thing networking | |
CN208571721U (en) | A kind of wireless charge-discharge system of mobile power source | |
CN205404671U (en) | A sensor that is used for capacitive equipment end screen current measurement | |
CN207967989U (en) | A kind of charging circuit and charger for lithium battery | |
CN208232841U (en) | Suitable for calculating the electric vehicle power management system and electric vehicle of stroke | |
CN207703969U (en) | A kind of portable detector for distribution network failure positioning | |
CN204517446U (en) | A kind of POS power circuit | |
CN201788514U (en) | Novel RFID (radio frequency identification) tag micro-energy collection control device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190524 Termination date: 20190706 |
|
CF01 | Termination of patent right due to non-payment of annual fee |