CN208001238U - A kind of cabinet for the major loop being equipped with air compressor machine special converter - Google Patents
A kind of cabinet for the major loop being equipped with air compressor machine special converter Download PDFInfo
- Publication number
- CN208001238U CN208001238U CN201721919005.XU CN201721919005U CN208001238U CN 208001238 U CN208001238 U CN 208001238U CN 201721919005 U CN201721919005 U CN 201721919005U CN 208001238 U CN208001238 U CN 208001238U
- Authority
- CN
- China
- Prior art keywords
- inverter module
- major loop
- electrolytic capacitor
- cabinet
- air compressor
- 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
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 41
- 229910052802 copper Inorganic materials 0.000 claims abstract description 41
- 239000010949 copper Substances 0.000 claims abstract description 41
- 239000003990 capacitor Substances 0.000 claims abstract description 35
- 238000009413 insulation Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 abstract 1
- 230000017525 heat dissipation Effects 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 229920000034 Plastomer Polymers 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Landscapes
- Rectifiers (AREA)
- Inverter Devices (AREA)
Abstract
The utility model discloses a kind of cabinets for the major loop being equipped with air compressor machine special converter, wherein, it is sequentially arranged electrolytic capacitor along air inlet duct, inverter module, rectifier bridge and contactor, inverter module, rectification module is respectively arranged in parallel perpendicular to air inlet, inverter module is fixed on a heat sink, the ends rectification module output P1 are connected to contactor, the N-terminal and electrolytic capacitor of output, the N-terminal of inverter module is connected with copper sheet or copper bar, fixed charging resistor below contactor, electrolytic capacitor is just, negative terminal is connected and installed with equalizing resistance by copper bar, the ends P of electrolytic capacitor are connected to the ends P of inverter module by fuse, the ends P of the inverter module are connected with copper sheet, N lines are isolated with multilayer insulation paper in centre, noninductive capacitance is mounted on the P of inverter module with distance small as possible, on N copper bars.The utility model cooling system is good, and direct current is rationally distributed so that big-power transducer reliably effectively works.
Description
Technical field
The utility model is related to a kind of cabinets for the major loop being equipped with air compressor machine special converter.
Background technology
Currently, the major loop of powerful frequency converter mainly has rectifier, contactor or silicon rectifying bridge module, charging electricity
Resistance, capacitance, inverter module and a large amount of copper bar or conducting wire composition.Traditional main circuit structure of frequency converter is often because of heat dissipation problem
And direct current layout structure it is unreasonable etc. cause frequency converter cannot stablize mostly, poor reliability, light then frequency converter failure, it is heavy then
Inversion module is exploded.Cause serious loss.Therefore the good major loop structure of design one ensures that frequency converter is reliable
The effective way of operation so that the service life of frequency converter greatly improves, and failure rate substantially reduces.
Utility model content
The main purpose of the utility model is that propose a kind of cabinet for the major loop being equipped with air compressor machine special converter,
To overcome traditional frequency conversion device major loop weak heat-dissipating, direct current to be laid out unreasonable defect, the utility model provides a kind of heat dissipation cycle
Well, the rational main loop structure of big-power frequency changer of topology layout.
One side according to the present utility model provides a kind of major loop of air compressor machine special converter, including rectification
Bridge, electrolytic capacitor, braking resistor, noninductive capacitance, inverter module, current sensor, radiator fan, which is characterized in that along air inlet
Road is sequentially arranged electrolytic capacitor, inverter module, rectifier bridge and contactor, and inverter module, rectifier bridge are respectively parallel perpendicular to air inlet
Arrangement, inverter module are fixed on a heat sink, and rectifier bridge output P1 ends are connected to contactor, the N-terminal of output and electrolytic capacitor, inverse
Become the N-terminal of module to connect with copper sheet or copper bar, fixed braking resistor below contactor, the positive and negative end of electrolytic capacitor passes through copper bar
It is connected and installed with equalizing resistance, the ends P of electrolytic capacitor are connected to the ends P of inverter module, the P of the inverter module by fuse
End is connected with copper sheet, intermediate that N lines are isolated with multilayer insulation paper, and noninductive capacitance is mounted on P, N copper bar of inverter module;
The major loop further includes:Directly anti-device, one end of the direct current reactor connect institute's frequency conversion for brake unit and electric current
The ends device P, the other end connect anode, the anode of braking resistor and the positive terminal of major loop of brake unit;The braking electricity
The ends cathode connection frequency converter P of resistance, the negative terminal of the cathode connection major loop of the brake unit.
Optionally, the major loop further includes:IGBG modules are used with the electrolytic capacitor circuit using copper as material
The positive and negative superposition of busbar optimizes major loop performance, reduces stray inductance.The ends frequency converter P1, which are connected with the ends P with copper bar, to be directly connected to
Connecting terminal.
Optionally, it is directly connected to connecting terminal after the rectifier bridge cathode access contactor.
Optionally, the ends frequency converter P1 and P are terminated is connected to connecting terminal into direct current reactor.
Optionally, temperature sensor is located at away from cm among inverter module.
Optionally, current sensor is fixed on inverter output terminal, and Sensor output is exported perpendicular to frequency converter three-phase
The copper bar at end.
Two aspects according to the present utility model, provide a kind of machine for the major loop being equipped with air compressor machine special converter
Case, the cabinet is equipped with the first installing zone, the second installing zone, third installing zone and the 4th installing zone successively from top to bottom, described
First installing zone is equipped with contactor, and second installing zone is equipped with rectifier bridge, and it is single that the third installing zone is equipped with braking
Member and IGBG modules, the 4th installing zone are equipped with electrolytic capacitor and direct current reactor;The electrolytic capacitor, inverter module,
Rectifier bridge and contactor are fixed successively along the air inlet duct of the cabinet, the rectifier bridge perpendicular to the air inlet duct and respectively it is parallel
Arrangement.
The utility model has the beneficial effect that:One kind that the utility model embodiment is provided is equipped with the special change of air compressor machine
The cabinet of the major loop of frequency device,
1, by direct current reactor, brake unit, capacitance and rectifier bridge built in subregion in the chassis, it can so that layout is tight
It gathers, reduces the space occupancy of cabinet.
2, direct current reactor can absorb abnormal voltge surge wave energy, smooth output wave with limiting circuitry interference noise
Shape brake units can control connect braking resistor condition, keep DC bus-bar voltage be no more than permissible value, it is added above can
So that air compressor frequency converter performance is more stablized.
3, heat dissipation is good, and under the premise of ensureing safe distance, the parallel installation of each piece of inverter module is sucked by air inlet
Cold wind take away the heat of every piece of inverter bridge simultaneously, so that the temperature of each piece of inverter bridge is kept substantially unanimously.The cloth of rectifier bridge
Office is almost the same with the layout pattern of inverter bridge.Cold wind enters from air inlet, flows through electrolytic capacitor, inverter bridge, rectifier bridge and connects
Tentaculum, finally, hot-air are flowed out from air outlet.Hot-air constantly rises, and cold air constantly sucks, and formation one is complete, good
The heat dissipation circulating system of property.Temperature sensor is fixed near intermediate inverter module, can detect inverter module temperature in real time, is protected
Protect module.Here it is because at different temperature, identity element can show different works that strength temperature is consistent substantially
Make characteristic, therefore inverter module, rectifier bridge all parallel arrangements, perpendicular to air inlet.Experiments have shown that:This frequency converter space layout heat dissipation
It is functional, the rich normal smoothness in air duct, and the working characteristics between identity element different units is close to unanimously.
4, direct current is rationally distributed, and the ends N, the P such as rectifier bridge, inverter module are linked together with copper bar respectively, centre multilayer
Premium insulation paper is isolated, compact-sized, and use is also safe and reliable, and directly noninductive capacitance can be mounted on by copper bar
Inverter module, and keep noninductive capacitance most short to the distance of inverter module, allow the effect of noninductive capacitance to perform to maximum.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the cabinet for the major loop being equipped with air compressor machine special converter;
Fig. 2 is a kind of structural schematic diagram of the major loop of air compressor machine special converter.
Wherein, 1, brake unit;2, direct current reactor;3, point solution capacitance;4, IGBG modules;5, rectifier bridge;6, contactor.
The utility model aim is realized, the embodiments will be further described with reference to the accompanying drawings for functional characteristics and advantage.
Specific implementation mode
The utility model is further described with reference to specific embodiment, but the utility model is not limited to
In these specific implementation modes.One skilled in the art would recognize that the utility model covers in Claims scope
All alternatives, improvement project and the equivalent scheme that may include.
According to Fig. 1 and Fig. 2, a kind of cabinet for the major loop being equipped with air compressor machine special converter, the cabinet is certainly
The first installing zone, the second installing zone, third installing zone and the 4th installing zone, the first installing zone installation are equipped under above successively
There are contactor 6, second installing zone that rectifier bridge 5 is installed, the third installing zone is equipped with brake unit 1 and IGBG modules
4IGBG, the 4th installing zone are equipped with electrolytic capacitor and direct current reactor 2;It is the electrolytic capacitor, inverter module 4IGBG, whole
Stream bridge 5 and contactor 6 are fixed successively along the air inlet duct of the cabinet, and the rectifier bridge 5 is perpendicular to the air inlet duct and respectively flat
Row arrangement.
By direct current reactor 2, brake unit 1, capacitance and rectifier bridge 5 built in subregion in the chassis, can be laid out
It is compact, reduce the space occupancy of cabinet.
Wherein, a kind of major loop of air compressor machine special converter includes:A kind of major loop of air compressor machine special converter,
Be characterized in that, including rectifier bridge 5, electrolytic capacitor, braking resistor, noninductive capacitance, inverter module 4IGBG, current sensor, dissipate
Hot-air fan, which is characterized in that be arranged as electrolytic capacitor, inverter module 4IGBG, rectifier bridge 5 and contactor, inverter module from wind direction
4IGBG, rectifier bridge 5 are respectively arranged in parallel perpendicular to air inlet, and inverter module 4IGBG is fixed on a heat sink, and rectifier bridge 5 exports P1
End is connected to contactor 6, and the N-terminal of output is connect with the N-terminal of electrolytic capacitor, inverter module 4IGBG with copper sheet or copper bar, contactor
The positive and negative end of the fixed braking resistor in 6 lower sections, electrolytic capacitor is connected and installed with equalizing resistance by copper bar, and the ends P of electrolytic capacitor are logical
Overcurrent fuse is connected to the ends P of inverter module 4IGBG, and the ends P of the inverter module 4IGBG are connected with copper sheet, and centre is with more
N lines are isolated in layer insulating paper, and noninductive capacitance is with distance small as possible on P, N copper bar of inverter module 4IGBG;The master returns
Road further includes:Directly anti-device, one end ends connection institute frequency converter P of the direct current reactor 2, the other end connect for brake unit 1 and electric current
Connect the positive terminal of the anode of brake unit 1, the anode of braking resistor and major loop;The cathode connection of the braking resistor becomes
The ends frequency device P, the negative terminal of the cathode connection major loop of the brake unit 1.
Direct current reactor 2 can absorb abnormal voltge surge wave energy, smooth output wave with limiting circuitry interference noise
Shape brake units 1 can control the condition for connecting braking resistor, and DC bus-bar voltage is kept to be no more than permissible value, added above
Air compressor frequency converter performance can be made more to stablize.
Optionally, the major loop further includes:IGBG module 4IGBG, use with the electrolytic capacitor circuit and are with copper
The positive and negative superposition of busbar of material optimizes major loop performance, reduces stray inductance, the ends frequency converter P1 are connected directly with the ends P with copper bar
It is connected to connecting terminal.
Optionally, connecting terminal is directly arrived after 5 cathode of rectifier bridge access contactor 6.
Reactor can absorb abnormal voltge surge wave energy, smooth output waveform brakings with limiting circuitry interference noise
Unit 1 can control the condition for connecting resistance, and direct busbar voltage is kept to be no more than permissible value, added above to make air compressor machine
Frequency converter performance is more stablized.
IGBG modules 4IGBG and electrolytic capacitor circuit are used using copper as the positive and negative superposition of the busbar of material, optimize major loop
Can, reduce stray inductance.Connecting terminal, no circuit are directly arrived after 5 cathode of rectifier bridge access contactor 6.
Specifically, being arranged as electrolytic capacitor, inverter module 4IGBG, rectifier bridge 5 and contactor 6 from wind direction.
Inverter module 4IGBG, rectifier bridge 5 are respectively arranged in parallel perpendicular to air inlet, and inverter module 4IGBG is fixed on radiator
On, rectifier bridge 5 exports the ends P1 and is connected to contactor 6.
After the power is turned on, fan just rotates frequency converter, at this point, cold air sucks frequency converter from air inlet, takes away part electricity
The heat that capacitance generates is solved, then, cold air continues to flow to air outlet, takes away the heat generated by inverter module 4IGBG, by
In inverter module 4IGBG arranged parallel on a heat sink, therefore complete a thermal cycle after, the temperature of each inverter module 4IGBG
Degree substantially can be consistent, and working characteristics is also almost the same.
Temperature sensor is mounted at inverter module 4IGBG distances 7CM.Air continues along radiator air passage stream, then
Rectifier bridge 5 is taken away, the heat that contactor 6 generates, finally, frequency converter, Zhou Erfu is all sucked out by air outlet in hot-air
Begin, forms a complete heat exchange circulatory system.Ensure that frequency converter will not break down because of overheat.
It is filtered after the inlet wire (three-phase of frequency converter or the input terminal of two-phase power supply) of frequency converter is by input terminal
After plate is filtered, rectifier bridge 5 is flowed into, alternating current is after over commutation, busbar N-terminal and all electrolytic capacitors, all inverter modules
The N-terminal of 4IGBG copper sheet, copper bar are connected.The ends P1 of busbar are connected on contactor 6, when frequency converter just powers on, due to wanting
It charges to the electrolytic capacitor of large capacity, contactor 6 will not be closed, and braking resistor is not short-circuited at this time, play current limliting
Effect.When electrolytic capacitor charging finishes, contactor 6 is closed, and braking resistor is short-circuited.Just, negative terminal passes through electrolytic capacitor
Copper bar installs equalizing resistance, ensures that the voltage between each electrolytic capacitor is equal.The ends P of electrolytic capacitor are connected to inverse by fuse
Become on the ends P of module 4IGBG so that inverter module 4IGBG will not be burnt out because bus current is excessive.
The ends P of all inverter module 4IGBG are connected with copper sheet, intermediate to carry out isolation N lines with multilayer insulation paper.Busbar
The ends P1 and the ends P (rectification come out busbar high-end) be connected on connecting terminal, by the two terminals, user can facilitate access
Direct current reactor 2 improves power factor.If it is not required, then being directly connected with copper bar.Pass through the ends the P1 (mother that rectification comes out
Line is high-end) and busbar N-terminal (rectification come out busbar ground terminal), can conveniently measure current busbar voltage.Noninductive capacitance installation
On P, N copper bar of inverter module 4IGBG, it ensure that recently, the ends P1 can be connected distance with the ends P by copper bar between the two,
A direct current reactor 2 can also be accessed between the ends P1, the ends P, to improve power factor.
Current sensor screw nail is fixed on the three-phase output end of frequency converter, and current sensor output line is perpendicular to change
The output end of the three-phase output end of frequency device is connected to driving plate, reduces the electromagnetic interference that output end generates and is produced to sample rate current data
It is raw to influence.The signal wire of contactor 6 and the signal wire of temperature sensor are also identical way.All input and output terminals are used
Insulation plastomer is fixed.
Major loop generally has signal wire (light current) and power line (forceful electric power), and for frequency converter, power line is divided into as inlet wire
And outlet.Electric current in inlet wire contains abundant harmonic wave, and the method that we use is filtered with high frequency capacitance, and frequency is removed
Higher, the harmonic wave with radianting capacity drops bottom electromagnetic interference, and uses varistor, prevents thunder and lightning from being damaged to frequency converter.
With the input (inlet wire) and output of insulating paper isolation rectification bridge 5.Outlet is fixed on by copper bar on inverter module 4IGBG, at every
It is kept between copper bar under enough electrical safety distances, is passed through current sensor, and be connected on leading-out terminal.Power line
Interference can be generated to signal wire, when there is signal wire to pass through power line, take the mode of vertical wirings so that power line generates
Electromagnetic interference to signal wire influence drop bottom to minimum degree.Signal wire is all using shielding line.
Claims (6)
1. a kind of cabinet for the major loop being equipped with air compressor machine special converter, which is characterized in that the cabinet from top to bottom according to
Secondary to be equipped with the first installing zone, the second installing zone, third installing zone and the 4th installing zone, first installing zone is equipped with contact
Device, second installing zone are equipped with rectifier bridge, and the third installing zone is equipped with brake unit and IGBG modules, and the described 4th
Installing zone is equipped with electrolytic capacitor and direct current reactor;
The cabinet includes the major loop of air compressor machine special converter, and the major loop includes:It is braking resistor, noninductive capacitance, inverse
Become module, current sensor, radiator fan, electrolytic capacitor, inverter module, rectifier bridge and contactor be sequentially arranged along air inlet duct,
Inverter module, rectifier bridge are respectively arranged in parallel perpendicular to air inlet, and inverter module is fixed on a heat sink, and rectifier bridge exports the ends P1 and connects
It is connected to contactor, the N-terminal of output is connect with the N-terminal of electrolytic capacitor, inverter module with copper sheet or copper bar, fixed system below contactor
Dynamic resistance, the positive and negative end of electrolytic capacitor are connected and installed with equalizing resistance by copper bar, and the ends P of electrolytic capacitor are connected by fuse
The ends P of inverter module are connected to, the ends P of the inverter module are connected with copper sheet, intermediate that N lines are isolated with multilayer insulation paper, noninductive
Capacitance is mounted on P, N copper bar of inverter module;
The major loop further includes:Directly anti-device, one end of the direct current reactor connect institute frequency converter P for brake unit and electric current
End, the other end connect anode, the anode of braking resistor and the positive terminal of major loop of brake unit;The braking resistor
Cathode connects the ends frequency converter P, the negative terminal of the cathode connection major loop of the brake unit.
2. a kind of cabinet of major loop being equipped with air compressor machine special converter according to claim 1, which is characterized in that
The major loop further includes:
IGBG modules are used using copper as the busbar of material is positive and negative with the electrolytic capacitor circuit and are superimposed, and optimize major loop performance,
Stray inductance is reduced, the ends frequency converter P1, which are connected with the ends P with copper bar, is directly connected to connecting terminal.
3. a kind of cabinet of major loop being equipped with air compressor machine special converter according to claim 1, which is characterized in that
It is directly connected to connecting terminal after the rectifier bridge cathode access contactor.
4. a kind of cabinet of major loop being equipped with air compressor machine special converter according to claim 1, which is characterized in that
The ends frequency converter P1 and P are terminated is connected to connecting terminal into direct current reactor.
5. a kind of cabinet of major loop being equipped with air compressor machine special converter according to claim 1, which is characterized in that
Temperature sensor is located at away from 7cm among inverter module.
6. a kind of cabinet of major loop being equipped with air compressor machine special converter according to claim 5, which is characterized in that
Current sensor is fixed on inverter output terminal, copper bar of the Sensor output perpendicular to frequency converter three-phase output end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721919005.XU CN208001238U (en) | 2017-12-29 | 2017-12-29 | A kind of cabinet for the major loop being equipped with air compressor machine special converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721919005.XU CN208001238U (en) | 2017-12-29 | 2017-12-29 | A kind of cabinet for the major loop being equipped with air compressor machine special converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208001238U true CN208001238U (en) | 2018-10-23 |
Family
ID=63836487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721919005.XU Expired - Fee Related CN208001238U (en) | 2017-12-29 | 2017-12-29 | A kind of cabinet for the major loop being equipped with air compressor machine special converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208001238U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109584497A (en) * | 2018-11-29 | 2019-04-05 | 石狮市瑞力机械科技有限公司 | A kind of frequency converter based on internet and with long-range monitoring fireproof alarming function |
| CN111917309A (en) * | 2020-06-30 | 2020-11-10 | 国网宁夏电力有限公司检修公司 | Phase-controlled large current source generator device |
-
2017
- 2017-12-29 CN CN201721919005.XU patent/CN208001238U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109584497A (en) * | 2018-11-29 | 2019-04-05 | 石狮市瑞力机械科技有限公司 | A kind of frequency converter based on internet and with long-range monitoring fireproof alarming function |
| CN111917309A (en) * | 2020-06-30 | 2020-11-10 | 国网宁夏电力有限公司检修公司 | Phase-controlled large current source generator device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201623650U (en) | A Modular Mounted Inverter | |
| CN205029193U (en) | Non intermittented power source machine cabinet | |
| CN106300414B (en) | A kind of modularization subway energy back feed device based on series and parallel structure | |
| CN204615186U (en) | A kind of energy-storage system rack | |
| CN105763076A (en) | Water-cooling type power unit | |
| CN208001238U (en) | A kind of cabinet for the major loop being equipped with air compressor machine special converter | |
| CN201113775Y (en) | Large power high voltage frequency conversion combination type power unit | |
| CN101420171B (en) | Method for stacked bus-bar of large power switch power supply | |
| CN202435242U (en) | Major loop structure of frequency converter | |
| CN201726303U (en) | High-power high-voltage inverter power unit | |
| CN204257409U (en) | The capacitance component of frequency converter and frequency converter | |
| CN207706065U (en) | A kind of high power water cooling power cell | |
| CN114006532A (en) | Converter device | |
| CN206022993U (en) | A kind of non intermittented power source machine cabinet | |
| CN201577024U (en) | Low-voltage frequency converter | |
| CN205901567U (en) | DC conversion module output structure | |
| CN213783127U (en) | IGBT module structure | |
| CN105391373B (en) | A kind of full distributed electric machine controller of filter capacitor | |
| CN214506059U (en) | Dual-power alternating current power distribution cabinet | |
| CN112706631B (en) | High power density water-cooling bidirectional charger device | |
| CN201312251Y (en) | Main loop structure of big-power frequency changer | |
| CN210578264U (en) | High-frequency switching power supply | |
| CN201726308U (en) | Ultrahigh-power, high-voltage and variable-frequency soft-start power unit | |
| CN202696495U (en) | IGBT (insulated gate bipolar transistor) low-voltage inverter | |
| CN207994911U (en) | Current transformer grid-connection cabinet |
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: 20181023 |