CN2796199Y - Unattended online monitoring comprehensive automatic control cabinet - Google Patents
Unattended online monitoring comprehensive automatic control cabinet Download PDFInfo
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- CN2796199Y CN2796199Y CN 200420055765 CN200420055765U CN2796199Y CN 2796199 Y CN2796199 Y CN 2796199Y CN 200420055765 CN200420055765 CN 200420055765 CN 200420055765 U CN200420055765 U CN 200420055765U CN 2796199 Y CN2796199 Y CN 2796199Y
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- power supply
- direct current
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Abstract
The utility model relates to a comprehensive automatic control cabinet with unattended online monitoring, which is composed of a screen cabinet, an alternating current supply circuit, a direct current supply circuit and a protection control circuit, wherein the alternating current supply circuit, the direct current supply circuit and the protection control circuit are arranged in the screen cabinet. The alternating current supply circuit passes a leading one-path alternating current 380 V general supply through the main shift low voltage side, and the alternating current power supply is controlled by an alternating current contactor to output an alternating current 380 V power supply for a fan, a rectification power supply and a multiple-path alternating current 220 V power supply. The direct current supply circuit adopts the traditional three phase full wave rectification and pi type filtering, while the rectification changes corner joint once, and star joint twice, and the key is that the output terminal behind the direct current supply circuit rectification filtering output the multiple-path 220 V direct current power supply. The multiple-path 220V direct current power supply is provided with two stored energy circuits formed by a charging circuit and a discharging circuit of a super capacitor, and capacitors in the two stored energy circuits are both super capacitors which charge up simultaneously and work simultaneously, but are independent to each other. The damage of either capacitor can not affect the other capacitor to work normally. The cabinet has the advantages of convenient installation and maintenance, small volume, small investment, reliable operation, etc., and is movable.
Description
(1) technical field
The utility model relates to a kind of control cubicle, particularly relate to and a kind of ac and dc systems, holding device, automatics in the transformer station are concentrated on an occupation of land less than in one meter square control cubicle, can replace transformer station master control status, and can be according to power supply position needs and mobile unattended operation on-line monitoring comprehensive automation control cubicle.
(2) background technology
At present; a 66KV4MVA main transformer generally only is equipped with in transformer station in China remote districts; and secondary is allotted line and is the galvanized wire protection; along with fast growth of national economy; these regional power consumptions have also had growth faster; power load constantly increases; this just need be replaced by 66KV4MVA the 10MVA main transformer could satisfy the electricity consumption needs; but rules regulation; so big transformer is unallowed with the galvanized wire protection, must install the relaying protection and the automatics of switch and configuration operation switch, and this just need be at the newly-built master-control room of transformer station; and there are problems in newly-built master-control room; as, transformer station does not have the place to build master-control room or urgent temporary electricity, builds master-control room and has little time; or build master-control room expense height, problem such as uneconomical.If not newly-built transformer station just must concentrate on the function of transformer station's master control in one integrated control cabinet, like this, the integrated control cabinet of assembling just can be installed nearby according to on-the-spot needs.Each principle of device of this inevitable requirement is simple, and wiring is simplified, and adapts to outdoor adverse weather condition.For protective device; select conventional induction type or electromagnetic relay for use; it is not lost and the weather condition effect by power supply; the existing ripe field experience of this respect; can adopt technical indicator to telemechanical apparatus is-40 ℃-50 ℃ product; when in a single day losing, can adopt internal cell work, also can adapt to for AC power.Therefore, can integrated control cabinet play a role reliably, and subject matter is how direct current system solves.Battery capacity is big, the electricity consumption time is long, it is reliable DC power supply, but it needs complicated charging system, surveillance and temperature control measures, it is unpractical that these complicated systems all are contained in the comprehensive control cabinet, and unique may be to adopt diode full-wave rectification, electrochemical capacitor energy storage, when power consumption equipment broke down, console switch was removed in discharge by electrochemical capacitor.But electrochemical capacitor one discharge, the just very fast disappearance of the electric energy of internal reservoir, the self discharge of itself has also reduced the ability of its store electrical energy.
(3) summary of the invention
In order to solve the problem that above-mentioned prior art exists; the utility model provides a kind of unattended operation on-line monitoring comprehensive automation control cubicle; this control cubicle can replace transformer station master control status, and ac and dc systems, protective device and automatics in the transformer station are combined among the cabinet.
The technical scheme that adopts:
Unattended operation on-line monitoring comprehensive automation control cubicle is made up of the ac power supply circuit, direct current power supply loop and the protection control loop that shield cabinet and be configured in the screen cabinet.Described ac power supply circuit draws one the tunnel by the main transformer low-pressure side by used change and exchanges the 380V general supply, control by the general supply control switch, this AC power is by A.C. contactor control and allotted interchange 380V fan power supply, rectifier power source, also allot multichannel alternating current 220V power supply simultaneously, so that as heating source in switch heating power supply, experiment power supply, power source of remote action and the screen cabinet; Described direct current power supply loop adopts traditional three phase full wave rectification, the filtering of π formula, and rectification becomes a corner connection, and two secondary stars connect, and make dc waveform better.It is characterized in that the output behind the direct current power supply loop rectifying and wave-filtering allots four road 220V DC power supply, the one tunnel uses for the control loop beyond the breaker tripping and closing, and the second the tunnel is protection and trip operation energy storage direct current, and Third Road is a closing operation energy storage direct current; The four the tunnel is circuit breaker energy storage motor direct current, in four road 220V DC power supply that direct current power supply loop is allotted, disposes two road tank circuits, and two road tank circuits are the capacitor charging/discharging loop, and the capacitor in the two-way tank circuit is super-strong capacitance.Two super-strong capacitances charge simultaneously, work simultaneously, but mutually independent, and the damage of each electric capacity does not all influence the operate as normal of another electric capacity.
The utility model is applicable to 66KV/16MVA with the main transformer that places an order, and adopts the transformer station of 220KV energy storage switch, and for the remote mountain areas, its main transformer secondary is allotted line and adopted the especially suitable of galvanized wire protection.Particularly to urgent electricity consumption, temporary electricity, master-control room has little time or uneconomical available this cabinet substitutes master-control room because of building.Maximum characteristics of the present utility model are to adopt the super-strong capacitance device as energy-storage travelling wave tube; replaced charging system; the storage battery that surveillance and temperature control measures are all complicated relatively; thereby solved the energy storage problem of direct current system; and then the miniaturization and the mobility of control cubicle have been realized; simultaneously; also can save a large amount of investments; what the direct current system of this control cubicle adopted is three phase full wave rectification; give two super-strong capacitance chargings; when losing, AC power can solve protection with the electric energy of capacitor stores; the action of logical circuit and switching manipulation; when breaking down; protective device can excise fault reliably, when recovering to send electricity, but a distant place or close a floodgate on the spot; be incorporated on the fault point and also can guarantee reliable tripping operation, and guarantee circuit-breaker-motor is replenished energy storage 1-4 time.And concerning protective device, owing to selected conventional induction type or electromagnetic relay for use, it is-40 ℃-50 ℃ product that telemechanical apparatus has been adopted its technical indicator, so can adapt to outdoor adverse weather condition.The utlity model has convenient for installation and maintenance, volume is little, and is removable, invests advantages such as little, reliable.
(4) description of drawings
Fig. 1 is the front view of the utility model screen cabinet.
Fig. 2 is the rearview of the utility model screen cabinet.
(5) embodiment
Unattended operation on-line monitoring comprehensive automation control cubicle of the present utility model comprises screen cabinet 1 and is configured in ac power supply circuit, direct current power supply loop and the protection control loop that shields in the cabinet 1.Screen cabinet 1 adopts high 1.8 meters, wide 1 meter, and thick 0.8 meter frame structure is packed with warming plate, makes in-cabinet temperature not be subjected to ectocine too big.Screen cabinet 1 opposed access door is convenient to safeguard.Undesired unlatching can be sent the alarm signal that the someone steals cabinet by telemechanical apparatus YD.The top in the front of screen cabinet 1 is equiped with rectifying device and telemechanical apparatus YD; the centre is a protective device, comprises auxiliary relay BCJ, ZJ, TBJ, overcurrent relay 1-3LJ, current relay, 4LJ, time relay 1-3SJ, voltage relay YJ1 and YJ2, signal relay 1-5XJ, combined floodgate indicator light HD and console switch KK.Be transfer strip 1-3LP and ramp 1-8DN below.The row of going up at screen cabinet 1 back side is temperature relay t, contactor JCK, microswitch 1-3WK, open phase relay DXJ, DXJ '.Second row is automatic switch 1-13ZK, and the 3rd row is two super-strong capacitance C
9, C
10The bottom of screen cabinet 1 is that rectification becomes B, heater R and heavy motor type relay tJ, and the left side of screen cabinet 1 is ac terminal row 1D; The right side is 4 fuse 1-4RD and dc terminal row 2D.Both sides are provided with several transverse pulling strips in the screen cabinet 1, are convenient to cable and fix.
Ac power supply circuit draws one the tunnel by the main transformer low-pressure side by used change and exchanges the 380V power supply, by the general supply control switch 1ZK control that is installed on the screen cabinet 1.Every transfer strip QP that is provided with mutually, device is with becoming power supply in the institute when normally moving, and the 1-4QP transfer strip up connects, when interim power supply is quoted in the main transformer power failure, the 1-4QP transfer strip is up connected, and the master switch of interim power supply is 4ZK, and interim power supply can access on the terminals knob below the cabinet front.1-4QP should set back before sending electricity.2ZK exchanges the phase failure and contactless contactor for control.During normal the operation, as exchanging phase shortage, even open phase relay DXJ action back contactor JCK disconnects air-cooled power supply.The normally closed interlock of open phase relay DXJ ' is connected in series the back connecting to neutral with A.C. contactor JCK.The three phase mains of 2ZK control disposes capacitor C A, CB, CC respectively.Interchange 380V power cut-off in order to prevent that used change from drawing disposes the interim power supply of one road three-phase, is controlled by power control switch 4ZK.Three-phase and zero line respectively dispose transfer strip 1-4QP.During normal the operation, intermediate terminal links to each other with top terminal.When interim power supply was quoted in power failure, transfer strip QP intermediate terminal linked to each other with following terminal.Dispose one road three-phase rectifier power supply, control by 3ZK; Dispose the moving device working power of a great distance, control by 11ZK; Dispose a switch heating power supply, control by 8ZK; Dispose one tunnel single-phase experiment power supply, control by 10ZK.When electric substation has a power failure, when the checking experiment personnel are with gasoline engine generator to charge to device, should disconnect 3ZK, with the lead-out terminal of generator after the single-phase voltage regulating device is adjusted voltage, receive on the generator input terminal of device, the automatic switch 12ZK that closes, direct voltage should be 220V.Charging current can disconnect 12ZK after dropping to zero, the generator of stopping using.Dispose one road screen cabinet, 1 temperature control loop, with 13ZK control, heater R is connected the loop by temperature relay t and the heavy motor type relay tJ control of temperature break-make.
Direct current power supply loop adopts traditional three phase full wave rectification, and the filtering of π formula, rectification become B and selects 2KVA for use, a corner connection, and two secondary stars connect, and make dc waveform better, and what rectification became B once has 5 taps, under the applicable different voltage condition, guarantees direct current output 220V.Open at the output of rectifier power source and to meet a voltmeter V and a load resistance RFZ, and be connected in series an ammeter A, also allot four road 220V DC loop at the output of rectifier power source simultaneously, and in four tunnel DC loop of allotting configuration two-way tank circuit.In the DC loop of allotting: the first via is the rectification DC loop, its dc output end be KM ±, this loop cuts off the power supply when interchange loses, by without the DC control fuse 1RD of energy storage control.Control loop use for tripping operation or beyond closing a floodgate; Second loop is protection and trip operation energy storage direct current, and the both positive and negative polarity of its dc output end is respectively 1KM
+, 2KM
-This loop is by the diode D of two forward conductions
7, D
8And sensitive switch 1WK serial connection formation, wherein diode D
7With the resistance R that is connected in series
7And capacitor C
7And connect.Diode D
8With the resistance R that is connected in series
8And capacitor C
8And connect; Third Road is by the diode D of two forward conductions
9, D
10And sensitive switch 1WK serial connection formation, wherein diode D
9With the resistance R that is connected in series
9And capacitor C
9And meet diode D
10With the resistance R that is connected in series
10And capacitor C
10And connect; The second tunnel protection and trip operation energy storage direct current and Third Road combined floodgate energy storage direct current are divided into two-way can prevent that closing circuit from ging wrong and influence trip(ping) circuit; The four the tunnel is circuit breaker energy storage motor direct current, and this direct current is by diode D
8And D
10Positive pole draw after linking to each other, the both positive and negative polarity of its dc output end is respectively HM
+, KM
-Do not cut off the power supply after AC power loses, by the tank circuit power supply, tank circuit is made of two-way capacitor charging/discharging loop.One routing capacitor C
9Positive pole through fusing 5RD, current-limiting resistance RB1, sensitive switch 2WK, diode D
11And the diode D in sensitive switch 3WK and the DC loop
7Negative pole connect capacitor C
9Negative pole meet the negative pole KM of DC loop
-, diode D
11Two ends and be connected to a charging resistor RC1, the two ends of charging resistor RC1 also are connected to voltage relay YJ1.Another routing capacitance C
10Positive pole through fuse 6KD, current-limiting resistance RB2, sensitive switch 2WK, diode D
12And diode D in sensitive switch 2WK and the tertiary circuit
10Positive pole connect capacitor C
10Negative pole meet the negative pole KM of DC loop
-, diode D
12Two ends and be connected to charging resistor RB
2, go back and be connected to voltage relay YJ2 simultaneously.In two tank circuits, capacitor C
9And C
10Be super-strong capacitance, two super-strong capacitance device C
9And C
10Charging is worked simultaneously simultaneously, but independent mutually, the damage of each electric capacity does not all influence the working condition of another electric capacity, by diode D
7-D
10Realize.Current-limiting resistance RB1, RB2 in two capacitor charge and discharge loops can prevent direct current system when breaking down, and because of short circuit current is too big, and burn out diode.Diode D
11And D
12In the time of on type selecting, should guaranteeing forward and do not burn out by big electric current, the capacitor C when preventing that DC power supply from losing in the tank circuit
9, C
10Electric leakage in the energy storage DC loop, does not have long-term field application relay.Charging resistor RC1 and RC2 select the 1KW electric furnace heating wire for use, and electric furnace heating wire is stretching, prevent heating, have both adapted to the charging requirement of super-strong capacitance, can prevent charging resistor heating broken string again.Dc fuse selects to have ladder, when the load side direct-current short circuit, and the corresponding fusing of 1-4RD, but super-strong capacitance C
9And C
10Protection disconnect 5RD and 6RD does not fuse, and during the direct current system internal short-circuit, the corresponding fusing of 5RD and 6RD.As super-strong capacitance C
9Or C
10When breakdown, corresponding protection fuse 5RD, 6RD do not fuse, and for this reason, when charging normal, the voltage drop on charging resistor RC1, the RC2 is zero from large to small at last.And electric capacity is when puncturing; its voltage is constant; according to these characteristics; in the protection control loop; start a time relay 3SJ with voltage relay YJ1, YJ2 contact and after connecing, this time relay 3SJ escapes the charging interval, starts sensitive switch 2WK or 3WK by time relay 3SJ time-delay contact by YJ1 or YJ2; the disengagement failure capacitor prevents to charge for a long time to fault electric capacity.Simultaneously send the electrolysis breakdown signal by telemechanical apparatus, be convenient to timely processing by 2WK or 3WK interlock contact.Two voltage relays of configuration YJ1, YJ2, can solve two problems, one is when electric capacity punctures, and starts 3SJ through time-delay disengagement failure electric capacity by voltage relay, another is the charging resistor broken string, and the voltage relay that is connected on this loop can replace charging resistor work.
When circuit breaker when the cabinet that breaks down is moving, release energy for a long time for preventing trip(ping) circuit, be connected in series the super moving time relay 2SJ in back with anti-trip relay TBJ normal opened contact with circuit breaker changeover contact DL, need only switch cabinet move, the 2SJ contact can't be connected.2SJ can adjust 0.2 second, started the 1WK sensitive switch, and 1WK promptly disconnects the accumulation power supply of closing loop, the maintainer with switch process after, the 1WK sensitive switch that manually closes can carry out the divide-shut brake of circuit breaker.1WK does not conform to, and circuit breaker can not close a floodgate, and when the circuit breaker tripping, the additional contact of 1WK is sent out the switch abnormal signal by telemechanical apparatus.
See also Fig. 3, the protection control loop is a known technology, does not protect content, so its configuration is summarized as follows:
1, three 1-3LJ overcurrent relays of configuration, direct current effect tripping operation, this relay has instantaneous operation and deferred action contact, starts unlike signal respectively, and being convenient to distinguish is the inside and outside fault of main transformer.
2, dispose heavily protection, by acting on tripping operation in the middle of exporting.
3, dispose light protection, act on signal.
4, draw main transformer excess temperature contact, act on signal.
5, the under-voltage protection of configuration main transformer low-pressure side acts on signal.
6, the system earth protection of configuration main transformer low-pressure side acts on signal.
7, configuration main transformer overload protection through time-delay, acts on signal.
8, configuration alternating current-direct current disconnection function acts on signal.
9, the reflection switch unusual as: SF6 pressure is low, switch energy storage time-out, spring is energy storage not, switch cubicle is moving, acts on signal.
10, configuration operation K switch K normally cuts position in the distance, and when need nearby during console switch, available this switch carries out divide-shut brake.
11, deploy switch combined floodgate repeater lamp HD.
12, signal relay 1-15KJ selects for use board to represent, can clearly represent failure condition when losing power supply in system, adopts the hand resetting mode.
13, except that inverse-time overcurrent, relay is all selected pulling and inserting type for use, is convenient to change.
14, automatic switch or the fuse of being installed in the screen cabinet 1 when fault or fusing, all has the board of falling to represent, this has created condition for occurring any unusually all sending warning signal in the device.
First row in screen cabinet 1 front has installed telemechanical apparatus, and its effect is as follows:
1, telemetry function, telemechanical apparatus are looked into and are not being installed under the PT situation of high-pressure side, gather the electric current, voltage of each equipped circuit, meritorious, idle, power factor (PF) etc. by kilowatt-hour meter, and teletransmission are to concentrator station.
2, distant control function, available handsets are adopted and wireless communication mode, in the distance deciliter switch.
3, remote signalling function and electric energy management.
Claims (2)
1, unattended operation on-line monitoring comprehensive automation control cubicle, form by the ac power supply circuit, direct current power supply loop and the protection control loop that shield cabinet (1) and be configured in the screen cabinet (1), described ac power supply circuit draws one the tunnel by the main transformer low-pressure side by used change and exchanges the 380V general supply, control by the general supply control switch, this AC power is by A.C. contactor control and allotted interchange 380V fan power supply, rectifier power source, also allot multichannel alternating current 220V power supply simultaneously, so that as switch heating power supply, experiment power supply, power source of remote action and the interior heating source of screen cabinet (1); Described direct current power supply loop adopts traditional three phase full wave rectification, the filtering of π formula, rectification becomes a corner connection, two secondary stars connect, make dc waveform better, it is characterized in that: the output behind the direct current power supply loop rectifying and wave-filtering is allotted multichannel 220V DC power supply, in the multichannel 220V DC power supply, dispose the tank circuit that two route super-strong capacitance device charging and discharging circuit constitute, the capacitor in the two-way tank circuit is super-strong capacitance, and two super-strong capacitances charge simultaneously, work simultaneously, but mutually independent, the damage of each electric capacity does not all influence the operate as normal of another electric capacity.
2, unattended operation on-line monitoring comprehensive automation control cubicle according to claim 1; it is characterized in that the output behind the described direct current power supply loop rectifying and wave-filtering allots four road 220V DC power supply; one the tunnel for the use of the control loop beyond the breaker tripping and closing; the second the tunnel is protection and trip operation energy storage direct current, and this loop is by the diode D of two forward conductions
7, D
8And sensitive switch 1WK serial connection constitutes diode D
7And be connected to the resistance R of mutual polyphone
7With filter capacitor C
7, diode D
8And be connected to the resistance R of mutual series connection
8With filter capacitor C
8Third Road is a closing operation energy storage direct current, and this DC loop is by the diode D of two forward conductions
9, D
10And sensitive switch 1WK serial connection constitutes diode D
9And be connected to the resistance R of mutual series connection
9With filter capacitor C
9, diode D
10And be connected to the resistance R of mutual series connection
10With filter capacitor C
10The four the tunnel is circuit breaker energy storage direct current; In the two-way tank circuit, a routing capacitor C
9Positive pole through fusing RD, current-limiting resistance RB1, sensitive switch 2WK, diode D
11And the diode D in sensitive switch 3WK and the DC loop
7Negative pole connect capacitor C
9Negative pole meet the negative pole KM-of DC loop, diode D
11Two ends and be connected to a charging resistor RC1, the two ends of charging resistor RC1 also are connected to voltage relay YJ1; Another routing capacitance C
10Positive pole through fuse 6KD, current-limiting resistance RB2, sensitive switch 2WK, diode D
12And diode D in sensitive switch 2WK and the tertiary circuit
10Positive pole connect capacitor C
10Negative pole meet the negative pole KM of DC loop
-, diode D
12Two ends and be connected to charging resistor RB
2, go back and be connected to voltage relay YJ2 simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420055765 CN2796199Y (en) | 2004-12-15 | 2004-12-15 | Unattended online monitoring comprehensive automatic control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420055765 CN2796199Y (en) | 2004-12-15 | 2004-12-15 | Unattended online monitoring comprehensive automatic control cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2796199Y true CN2796199Y (en) | 2006-07-12 |
Family
ID=36813946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420055765 Expired - Fee Related CN2796199Y (en) | 2004-12-15 | 2004-12-15 | Unattended online monitoring comprehensive automatic control cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2796199Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102510690A (en) * | 2011-10-31 | 2012-06-20 | 成都鑫三洋科技发展有限公司 | Screen cabinet of monitoring system of hydropower station |
| CN102804528A (en) * | 2009-06-23 | 2012-11-28 | 松下电器产业株式会社 | Apparatus For Protecting Direct Current Branch Circuit |
| CN103481800A (en) * | 2013-09-23 | 2014-01-01 | 中国北车集团大同电力机车有限责任公司 | High voltage warning device and method for electrical cabinet of electric locomotive |
| CN106159883A (en) * | 2016-08-13 | 2016-11-23 | 金生强 | Intelligent power supply paraffin removal unit |
| CN109904858A (en) * | 2019-04-19 | 2019-06-18 | 福建典力节能科技有限公司 | Can the electrification of automatic Regulation and automatic gauge switch electric control appliance |
-
2004
- 2004-12-15 CN CN 200420055765 patent/CN2796199Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102804528A (en) * | 2009-06-23 | 2012-11-28 | 松下电器产业株式会社 | Apparatus For Protecting Direct Current Branch Circuit |
| CN102804528B (en) * | 2009-06-23 | 2016-02-17 | 松下知识产权经营株式会社 | Direct current branch protective device |
| CN102510690A (en) * | 2011-10-31 | 2012-06-20 | 成都鑫三洋科技发展有限公司 | Screen cabinet of monitoring system of hydropower station |
| CN103481800A (en) * | 2013-09-23 | 2014-01-01 | 中国北车集团大同电力机车有限责任公司 | High voltage warning device and method for electrical cabinet of electric locomotive |
| CN103481800B (en) * | 2013-09-23 | 2016-09-28 | 中国北车集团大同电力机车有限责任公司 | Electrical cubicle high pressure alarming device and method for electric locomotive |
| CN106159883A (en) * | 2016-08-13 | 2016-11-23 | 金生强 | Intelligent power supply paraffin removal unit |
| CN106159883B (en) * | 2016-08-13 | 2019-01-25 | 金生强 | Intelligent power supply paraffin removal unit |
| CN109904858A (en) * | 2019-04-19 | 2019-06-18 | 福建典力节能科技有限公司 | Can the electrification of automatic Regulation and automatic gauge switch electric control appliance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |