CN201963397U - High-frequency inverse direct-current arc welding power-frequency gasoline engine generator - Google Patents
High-frequency inverse direct-current arc welding power-frequency gasoline engine generator Download PDFInfo
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- CN201963397U CN201963397U CN2010206806555U CN201020680655U CN201963397U CN 201963397 U CN201963397 U CN 201963397U CN 2010206806555 U CN2010206806555 U CN 2010206806555U CN 201020680655 U CN201020680655 U CN 201020680655U CN 201963397 U CN201963397 U CN 201963397U
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- 238000003466 welding Methods 0.000 title claims abstract description 38
- 239000003502 gasoline Substances 0.000 title claims abstract description 14
- 238000001914 filtration Methods 0.000 claims abstract description 16
- 230000005669 field effect Effects 0.000 claims description 41
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 238000011084 recovery Methods 0.000 claims description 12
- 239000003990 capacitor Substances 0.000 claims description 11
- 239000002828 fuel tank Substances 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000209202 Bromus secalinus Species 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model relates to a high-frequency inverse direct-current arc welding device with 220V and 50Hz alternating current provided by a gasoline engine driven electric generator, in particular to a high-frequency inverse direct-current arc welding power-frequency gasoline engine generator. The generator comprises an alternating-current generator device, a control box device, a rectifying and filtering device, a full bridge inverting device and a control circuit device. Due to the characteristic of the self structure, the full bridge inverting device has the advantages of being high in the use ratio of a transformer, small in filtering inductance and the like under a soft switching work mode; and a special electric welding generator is replaced, electric welding is integrated with electricity generating, and a soft switching technology is introduced into the field of an inverting welding device, so that the generator plays an important part in reducing switching loss, raising switching frequency to 100kHz, reducing volume weight, reducing costs and saving energy sources. The generator solves the problems that the existing gasoline engine-driven direct-current arc welding device is high in energy consumption, large in volume and high in cost, only can be used as a single-function electric welding device, and the like.
Description
Technical field
The utility model relates to a kind of high-frequency inversion direct-current arc welding device that 220V, 50Hz Ac are provided by the gasoline machine driving generator.
Background technique
At present known by the gasoline engine driven dc welding machine, mostly be that power frequency or the intermediate frequency welding generator that special use is housed provides the following Ac of 100V to use DC electrical source as welding behind phase control rectifier, be operated in the hard switching state, switching loss is serious, the energy consumption height, volume is big, the cost height, and can only use as single electric welding machine.
The model utility content
The purpose of this utility model is to avoid above-mentioned deficiency of the prior art, and provides a kind of current collection weldering, generating to be the high-frequency inversion direct-current arc welding power frequency rotor machine of one.
For finishing above-mentioned purpose, the utility model provides a kind of high-frequency inversion direct-current arc welding power frequency generator, and its special way is to comprise:
1) alternative electric generation machine, comprise frame, fuel tank, motor, alternator, control panel, engine driven generators sends 220V, 50Hz Ac, give the power supply of high-frequency inversion DC arc device by generating in the control panel, city's electrical switch switching back, potentiometer is used to regulate the welding current size;
2) Direct box device comprises a ventilating fan, radiator, two circuit boards, the casing that the venetian blind perforate is arranged, and ventilating fan is contained in the radiator right side, respectively adorns a circuit board before and after the radiator;
3) straightening and filtering unit comprises rectifier bridge, filter capacitor, relay, and rectifier bridge, relay are contained on the circuit board with 4 filter capacitors, and circuit board is fixed on the Direct box top;
4) full-bridge inverting device, comprise single-phase full bridge conversion circuit, high frequency transformer, fast-recovery commutation diode, filter reactor, 4 power switch MOSFET field effect transistors are contained on the radiator with 2 fast-recovery commutation diodes in the single-phase full bridge conversion circuit, filter reactor is contained on the circuit board in radiator back with high frequency transformer, the single-phase full bridge conversion circuit, high frequency transformer, fast-recovery commutation diode are two-way identity unit parallel operations;
5) control circuit device comprises the high frequency drive circuit chip, the PWM specific integrated circuit, and external characteristic control circuit, protective circuit, these devices all are contained on the circuit board in radiator front.
The source electrode of field effect transistor VT2 in 4 power switch MOSFET of single-phase full bridge conversion circuit field effect transistor in the utility model full-bridge inverting device is connected with the filter capacitor negative pole respectively with the source electrode of MOS field effect transistor VT4, the drain electrode of field effect transistor VT1 goes out end with the normally opened contact of described relay J respectively with the drain electrode of MOS field effect transistor VT3 and is connected, the source electrode of field effect transistor VT1 is connected with the drain electrode of field effect transistor VT2, be connected in series an inductance between this contact and the former end end of high frequency transformer, the source electrode of field effect transistor VT3 is connected with the drain electrode of field effect transistor VT4, be connected with the former limit of high frequency transformer tail end again behind this contact and another inductance and the capacitance series, high frequency transformer secondary head, tail end links to each other with two fast-recovery commutation diodes are anodal respectively, two fast-recovery commutation diode negative poles link to each other with the filter reactor inlet side respectively, filter reactor goes out end and goes out socket with the defeated positive pole of welding and link to each other, high frequency transformer secondary center tap terminal with weld the negative pole accessory power outlet and link to each other.The Gate utmost point of field effect transistor VT1, VT4 is connected with the high frequency drive circuit chip output respectively, and the Gate utmost point of field effect transistor VT3, VT2 is connected with another road high frequency drive circuit chip output respectively.
The normally opened contact series connection of straightening and filtering unit repeat circuit J is at the positive pole and the positive interpolar of filter capacitor of rectifier bridge in the utility model, and normally opened contact goes out between the negative pole of end and rectifier bridge to be parallel with filter capacitor.
In the utility model in the full-bridge inverting device single-phase full bridge conversion circuit be the single-phase full bridge conversion circuit that constitutes by 4 power switch MOSFET field effect transistors.
Description of drawings
Fig. 1 is a theory diagram of the present utility model;
Fig. 2 is the utility model circuitry schematic representation;
Fig. 3 is first embodiment's of the utility model a complete machine structure schematic representation;
Fig. 4 is second embodiment's of the utility model a Direct box apparatus structure schematic representation;
Fig. 5 is the circuit diagram that the utility model control circuit device medium-high frequency drive circuit chip and PWM specific integrated circuit are formed;
Fig. 6 is an external characteristic control circuit schematic representation in the utility model control circuit device.
Embodiment
Referring to Fig. 1, the utility model comprises: alternative electric generation machine 1, straightening and filtering unit 2, control circuit device 3, full-bridge inverting device 4 and a Direct box device 5, alternative electric generation machine 1 is by the 5 electric fan work of straightening and filtering unit 2 start-up control box devices, while start-up control circuit arrangement 3, make 4 work of full-bridge inverting device, in case the work of high-frequency inversion direct-current arc welding device occurs unusual, turn-off straightening and filtering unit 2 by control circuit device 3.
Referring to Fig. 2, Fig. 3, first embodiment comprises a frame 6, fuel tank 7, motor 8, a generator M, a control panel 9.The 220V that generator M sends, the 50Hz Ac through two core cable 10 respectively with control panel on knob refer to the contact K1-1 of K switch a, K1-2 connects, civil power lead-in clamp A, A1 refers to the contact K2-1 of K switch a respectively with knob, K2-2 connects, contact K1 goes into end with circuit breaker D series connection back Zai Yu MOUNTING-EAR toggle switch Kb and is connected, circuit breaker D goes out a 0-300V A.C. voltmeter in parallel and two power output socket Z between the contact K2 that end and knob refer to K switch a; MOUNTING-EAR toggle switch Kb go out to hold and knob refers between the contact K2 of K switch a and is connected with described ventilating fan MF and straightening and filtering unit 2, potentiometer W1 is connected with operational amplifier U2 in the external characteristic control circuit.MOUNTING-EAR switching plate K controls generator starting, and knob refers to switch ka control generating, civil power conversion, and the alternating voltage Table V is the indication of 220V supply voltage, and Z is two power output sockets, and circuit breaker D is the way circuit insurance, when total current surpasses 29A, and circuit breaker D automatic disconnection.B, B1 are electric welding output both positive and negative polarity sockets, and potentiometer W1 is used to regulate welding current size ， MOUNTING-EAR toggle switch Kb control ventilating fan MF and straightening and filtering unit 2 on/offs.
Referring to Fig. 2, Fig. 4, second embodiment comprises that straightening and filtering unit 2 is installed on the cover plate 14 of Direct box device, MOSFET field effect transistor VT1, VT2, VT3, VT4 and fast-recovery commutation diode D5, D6 are contained on the aluminium radiator 11, electric fan MF is contained in the right of aluminium radiator 11, high frequency drive circuit chip MAX4426 is contained on the circuit board 12, PWM specific integrated circuit SG3525 is contained on the circuit board 13, and filter reactor Lf is contained on the circuit board 15 with high frequency transformer T.
High frequency drive circuit chip internal in the control circuit device has two drive circuits, and the PWM specific integrated circuit is 16 pin encapsulated integrated circuits, and external characteristic control circuit is the external characteristic control circuit that is made of 4 operational amplifiers.
Referring to Fig. 2; Fig. 5; Fig. 6; field effect transistor VT1; the Gate utmost point G1 of VT4; G4 is connected with high frequency drive circuit chip MAX4426 output terminal OUT1 respectively; field effect transistor VT3; the Gate utmost point G3 of VT2; G2 is connected with another road high frequency drive circuit chip MAX4426 output terminal OUT2 respectively; high frequency drive circuit chip MAX4426 in the described control circuit device is connected with 11 pin of PWM specific integrated circuit SG3525 through isolating optocoupler 6N137 input end IN1; the isolation optocoupler 6N137 input end IN2 of another road high frequency drive circuit chip MAX4426 is connected with 14 pin that the special-purpose collection of PWM has into circuit SG3525; external characteristic control circuit output terminal Ia and PWM specific integrated circuit 2 pin; 9 pin connect; protective circuit repeat circuit J is by PWM specific integrated circuit 10 pin input fault SC sigmal control, and the Vfb of external characteristic control circuit comparator U3 links to each other with sample resistance R.
Hereinafter with reference to Fig. 2, Fig. 5, Fig. 6 narrates the working procedure of high-frequency inversion direct-current arc welding power frequency gasoline engine generator, the Jie Tong MOUNTING-EAR of elder generation toggle switch K ato unit drives generator M generating, 220V, the 50Hz Ac through two core cable 10 respectively with control panel 9 on knob refer to the contact K1-1 of K switch a, K1-2 connects, open knob and refer to K switch a, make contact K1, K2 and contact K1-1, K1-2 connects, high-frequency inversion direct-current arc welding power frequency gasoline engine generator is operated in the generating position, open circuit breaker D, two power output socket Z of alternating voltage Table V indication 220V get; beat out MOUNTING-EAR toggle switch Kb and make the rectifier bridge Dz in ventilating fan MF and the straightening and filtering unit 2 get electric work, ventilating fan MF pectinid, rectifier bridge Dz is with 220V in the straightening and filtering unit 2, the 50Hz AC rectification is pulsating direct current and charges to filter capacitor Co, for avoiding excessive charging inrush current to damage switch and circuit breaker trip, insert starting resistance CPT in start, with limit inrush currents.After working properly, starting resistance is by the J1 short circuit of relay J contact, and starting resistance has adopted thermistor, and it has the good anti-property gone out.Control relay J contact J1 disconnects when PWM specific integrated circuit 10 pin have trouble signal, when the electricity consumption total current surpasses 29A circuit breaker D automatic disconnection.Relay J contact J1 connects back start-up control circuit arrangement 3, make 4 work of full-bridge inverting device, the VDC of 300V behind rectifying and wave-filtering, on the drain D 1 that positive pole is added in power MOSFET field effect transistor VT1 and the drain D 3 of MOS field effect transistor VT3, on the source S 2 that negative pole is added in power MOSFET field effect transistor VT2 and the source S 4 of MOS field effect transistor VT4, field effect transistor VT1, the Gate utmost point G1 of VT4, G4 is controlled by the pwm pulse signal of high frequency drive circuit chip MAX4426 output terminal OUT1 respectively, field effect transistor VT3, the Gate utmost point G3 of VT2, G2 is controlled by the pwm pulse signal of another road high frequency drive circuit chip MAX4426 output terminal OUT2 respectively, and field effect transistor VT1 and VT2 are complementary logical, disconnected.The complementary switching of field effect transistor VT3 and VT4.Sinusoidal positive half cycle, field effect transistor VT1, VT4 are logical, electric current by positive pole through the D4-S4 of the D1-S1-Ls-T1-T2-C-Lik-VT4 of VT1 to negative pole.Sinusoidal negative half period, field effect transistor VT3, VT2 are logical, electric current by positive pole through the D2-S2 of the D3-S3-Lik-C-T2-T1-Ls-VT2 of VT3 to negative pole.Alternating current is flow through on former limit at high frequency transformer T, through high frequency transformer T isolated buck behind 60V,, after being met the DC electrical source of welding requirements, filter reactor Lf filtering draws by fast-recovery commutation diode D5, D6 rectification through welding positive and negative accessory power outlet B, B1.The present embodiment design frequency is 100kHz, and main switch is in the high frequency operating state, requires to shorten as far as possible the rise time and the fall time of MOSFET field effect transistor Gate pole tension, reduces switching loss.Therefore drive circuit will have bigger driving current, and MAX4426 is a high frequency drive circuit chip that is specifically designed to the MOSFET field effect transistor, and there are two drive circuits its inside, and bigger output power can be provided at an easy rate.Typical case's rising, fall time only are 20ns, and can work in 1MHz less than 40ns retard time, and the peak anode current of 1.5A can be provided.6N137 is a high speed photo coupling, only there is 40ns in propagation delay time, after isolating through two-way 6N137 high speed photo coupling, the next pwm signal of 11 pin, 14 pin of specific integrated circuit SC3525 delivers to two-way high frequency drive circuit chip MAX4426 respectively, make control circuit and drive circuit that electrical isolation preferably be arranged, disappear the interference of control circuit.It is a kind of PWM specific integrated circuit of carrying out the phase place pulsewidth modulation that present embodiment is selected specific integrated circuit SG3525 for use, its phase place pulse length modulation principle is: given command signal is by the 9 pin input of intergrated circuit SG3525, output error signal after the internal error amplifier amplifies, the sawtooth wave of importing with 5 pin of intergrated circuit SG3525 compares, by 11 pin, pwm signal that 14 pin output pulse widths are adjustable input end IN1, IN2, go to change the phase relationship of two brachium pontis respectively to optocoupler 6N137.
W1 in the utility model in the external characteristic control circuit is a constant current control potentiometer, and Iref is that current peak is cheated definite value.During proper functioning, output voltage value of feedback Vfb is greater than dragging setting value Vz outward, and comparator U3 is output as zero, and to not influence of adder U4, welding current is determined by constant current setting value Iref; When welding gun and workpiece adhesion short circuit, Vfb is less than Vz, and comparator U3 is output as height, is equivalent to increase Iref, and the error signal of intergrated circuit SG3525 internal error amplifier output also increases, and welding current then increases thereupon, thereby realizes external characteristics control.If only electric current is carried out reverse feedback control, intergrated circuit SG3525 will export with maximum impulse all the time when so unloaded, cause unnecessary waste and Security to reduce, design the voltage regulator that one road comparator U1 constitutes separately, the open circuit voltage of butt welding machine carries out reverse feedback control, when Vfb cheats definite value Vk greater than open circuit voltage, higher level of U1 output is blocked the output of Ic point, and to make intergrated circuit SC3525 output pulse phase shifting angle be 180 °, be that effective impulse wide is 0 °, output voltage is reduced.Like this, phase shifting angle alternate between 0 ° and 180 ° of intergrated circuit SC3525 output control signal not only obtains constant open circuit voltage, and has reduced open circuit loss.
In conjunction with the foregoing description as can be seen, the utility model advantage compared to existing technology is: adopting the PWM pulsewidth modulation, is to control output voltage by the change pulse width, controls its output frequency by the change cycle.And the variation of output frequency can realize by the modulation period that changes pulse.Like this, it is consistent that two effects of pressure regulation and frequency modulation are cooperated, and irrelevant in the medium tache direct current, thereby accelerated governing speed, improved adjusting function.Because the output constant amplitude pulse only needs the power supply of Constant Direct Current power supply, available uncontrollable rectifier replaces phase controlled rectifier, and power factor is improved greatly.Utilize the PWM inverter can suppress or eliminate low-order harmonic.Add the use self-turn-off device, switching frequency increases substantially, because frequency is brought up to 100kHz, volume is reduced greatly, in light weight, cost reduces, owing to be operated in soft on off state, switching loss reduces, and output waveform can be very approaching sinusoidal wave, and the energy electric welding is dual-purpose with generating.
Claims (5)
1. a high-frequency inversion direct-current arc welding power frequency gasoline engine generator is characterized in that, comprising:
1) alternative electric generation machine, comprise frame, fuel tank, motor, alternator, control panel, engine driven generators sends 220V, 50Hz Ac, give the power supply of high-frequency inversion DC arc machine by generating in the control panel, city's electrical switch switching back, potentiometer is used to regulate the welding current size;
2) Direct box device comprises a ventilating fan, radiator, two circuit boards, the casing that the venetian blind perforate is arranged, and ventilating fan is contained in the radiator right side, respectively adorns a circuit board before and after the radiator;
3) straightening and filtering unit comprises rectifier bridge, filter capacitor, relay, and rectifier bridge, relay are contained on the circuit board with 4 filter capacitors, and circuit board is fixed on the Direct box top;
4) full-bridge inverting device, comprise single-phase full bridge conversion circuit, high frequency transformer, fast-recovery commutation diode, filter reactor, 4 power switch MOSFET field effect transistors are contained on the radiator with 2 fast-recovery commutation diodes in the single-phase full bridge conversion circuit, filter reactor is contained on the circuit board in radiator back with high frequency transformer, the single-phase full bridge conversion circuit, high frequency transformer, fast-recovery commutation diode are two-way identity unit parallel operations;
5) control circuit device comprises the high frequency drive circuit chip, the PWM specific integrated circuit, and external characteristic control circuit, protective circuit, these devices all are contained on the circuit board in radiator front.
2. high-frequency inversion direct-current arc welding power frequency gasoline engine generator according to claim 1, it is characterized in that: the source electrode of the field effect transistor VT2 in the single-phase full bridge conversion circuit of described full-bridge inverting device in 4 power switch MOSFET field effect transistors is connected with the filter capacitor negative pole respectively with the source electrode of MOS field effect transistor VT4, the drain electrode of field effect transistor VT1 goes out end with the normally opened contact of described relay J respectively with the drain electrode of MOS field effect transistor VT3 and is connected, the source electrode of field effect transistor VT1 is connected with the drain electrode of field effect transistor VT2, be connected in series an inductance between this contact and the former end tip node of high frequency transformer, the source electrode of field effect transistor VT3 is connected with the drain electrode of field effect transistor VT4, be connected with the high frequency transformer tail end again behind this contact and another inductance and the capacitance series, high frequency transformer secondary head, tail end links to each other with two fast-recovery commutation diodes are anodal respectively, two fast-recovery commutation diode negative poles link to each other with the filter reactor inlet side respectively, filter reactor goes out end and links to each other with the anodal accessory power outlet of welding, high frequency transformer secondary center tap terminal links to each other with welding negative pole accessory power outlet, field effect transistor VT1, the grid of VT4 is connected with the high frequency drive circuit chip output respectively, field effect transistor VT3, the grid of VT2 is connected with another road high frequency drive circuit chip output respectively.
3. high-frequency inversion direct-current arc welding power frequency gasoline engine generator according to claim 1 and 2, it is characterized in that: the normally opened contact series connection of described straightening and filtering unit repeat circuit J is at the positive pole and the positive interpolar of filter capacitor of rectifier bridge, and normally opened contact goes out between the negative pole of end and rectifier bridge to be parallel with filter capacitor.
4. high-frequency inversion direct-current arc welding power frequency gasoline engine generator according to claim 3 is characterized in that: the single-phase full bridge conversion circuit is the single-phase full bridge conversion circuit that is made of 4 power switch MOSFET field effect transistors in the described full-bridge inverting device.
5. high-frequency inversion direct-current arc welding power frequency gasoline engine generator according to claim 3, it is characterized in that: the high frequency drive circuit chip internal in the described control circuit device has two drive circuits, the PWM specific integrated circuit is 16 pin encapsulated integrated circuits, and external characteristic control circuit is the external characteristic control circuit that is made of 4 operational amplifiers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206806555U CN201963397U (en) | 2010-12-23 | 2010-12-23 | High-frequency inverse direct-current arc welding power-frequency gasoline engine generator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206806555U CN201963397U (en) | 2010-12-23 | 2010-12-23 | High-frequency inverse direct-current arc welding power-frequency gasoline engine generator |
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| CN201963397U true CN201963397U (en) | 2011-09-07 |
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| CN2010206806555U Expired - Fee Related CN201963397U (en) | 2010-12-23 | 2010-12-23 | High-frequency inverse direct-current arc welding power-frequency gasoline engine generator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103414285A (en) * | 2013-08-30 | 2013-11-27 | 维尔纳（福建）电机有限公司 | Generating and electrowelding dual-purpose machine |
| CN103516176A (en) * | 2013-10-09 | 2014-01-15 | 清华大学 | Modularized high-frequency link power conversion system of plug-and-play structure |
| CN110535330A (en) * | 2019-09-27 | 2019-12-03 | 洛阳升华感应加热股份有限公司 | A kind of inversion driving for silicon-controlled induction heating power inverter |
-
2010
- 2010-12-23 CN CN2010206806555U patent/CN201963397U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103414285A (en) * | 2013-08-30 | 2013-11-27 | 维尔纳（福建）电机有限公司 | Generating and electrowelding dual-purpose machine |
| CN103516176A (en) * | 2013-10-09 | 2014-01-15 | 清华大学 | Modularized high-frequency link power conversion system of plug-and-play structure |
| CN110535330A (en) * | 2019-09-27 | 2019-12-03 | 洛阳升华感应加热股份有限公司 | A kind of inversion driving for silicon-controlled induction heating power inverter |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHONGQING LUNHAO MACHINERY MANUFACTURING CO., LTD. Free format text: FORMER OWNER: LI JIELE Effective date: 20120716 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Free format text: CORRECT: ADDRESS; FROM: 400050 JIULONGPO, CHONGQING TO: 400082 DADUKOU, CHONGQING |
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| TR01 | Transfer of patent right |
Effective date of registration: 20120716 Address after: Eight town 400082 Dadukou District of Chongqing village two, eight agency citizens Patentee after: Chongqing Lunhao Machinery Manufacturing Co.,Ltd. Address before: 400050 Chongqing Jiulongpo District of Yangjiaping Xinhua Village No. 18 2-4-1 three Patentee before: Li Jiele |
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| DD01 | Delivery of document by public notice |
Addressee: Li Jiele Document name: Notification of Passing Examination on Formalities |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20131223 |