CN202817892U - Double power switching circuit of inverter welding machine - Google Patents
Double power switching circuit of inverter welding machine Download PDFInfo
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- CN202817892U CN202817892U CN 201220523259 CN201220523259U CN202817892U CN 202817892 U CN202817892 U CN 202817892U CN 201220523259 CN201220523259 CN 201220523259 CN 201220523259 U CN201220523259 U CN 201220523259U CN 202817892 U CN202817892 U CN 202817892U
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Abstract
The utility model provides a double power switching circuit of an inverter welding machine and belongs to the technical field of inverter welding machines. The utility model solves the problem that in the prior art, an electric welding machine having one fixed power supply is not suitable for welding work in mobile occasions. The circuit comprises two output terminals used for connecting with a main loop of the welding machine, input terminals AC1 and AC2 used for connecting with a power supply, a power supply auxiliary module used for connecting the input terminals AC1 and AC2, and a control module connected with the power supply auxiliary module. An input terminal of the control module is connected with a voltage sampling module used for detecting power supply input while an output terminal of the control module is connected with a drive module. The drive module is connected with a rectification filtering voltage-multiplying module used for multiplying voltage after rectification based on control signals given by the control module. The control module is used for controlling the drive module to multiply input power supply after rectification and filtering when the control module receives a signal indicating that according to the voltage detected by the voltage sampling module, the power supply is a commercial power supply. The double power switching circuit is suitable for utilization of double power supplies, thereby enhancing the adaptability of the welding machine.
Description
Technical field
The utility model belongs to the inverter type welder technical field, relates to a kind of duplicate supply change-over circuit of inverter type welder.
Background technology
The work input power of general traditional inverter type welder is applicable to the wherein a kind of of mains supply 1～220VAC or electrical source of power 1～380VAC, if the inverter type welder that can only be applied on the mains supply is directly used on electrical source of power 1～380VAC, the welding motor overvoltage is burnt; Or the welding machine of applicable electrical source of power 1～380VAC is applied to the upper work of mains supply 1～220VAC, the inverter type welder cisco unity malfunction of this moment then.The occasion that the electric welding machine of fixing a kind of power supply can only be applicable to fix is if often go out converting field work then a kind of power supply can not satisfy people's requirements of one's work far away.If can design a kind of being applicable to no matter be the welding machine that on civilian mains supply or electrical source of power, can both not affect work progress.As long as have like this electricity the place just can the construction application welding machine.
Summary of the invention
The utility model has proposed a kind of duplicate supply change-over circuit of inverter type welder for existing problem, thereby this circuit strengthens the adaptability of welding motor by being applicable to mains supply 1～220VAC and electrical source of power 1～380VAC duplicate supply.
The utility model is realized by following technical proposal: a kind of duplicate supply change-over circuit of inverter type welder comprises for two lead-out terminals that connect the welding machine major loop, for the input terminal AC that connects power supply
1With input terminal AC
2, it is characterized in that, also comprise for connecting input terminal AC
1With input terminal AC
2Power supply supplementary module and the control module that is connected the power supply supplementary module, described control module input connects the voltage sample module for detection of the power supply input, described control module output also is connected with driver module, described driver module is connected with for the control signal that provides according to the control module rectifying and wave-filtering times die block of voltage after the rectification extraordinarily, when described control module is used for receiving the voltage sample module and detects voltage and be mains supply the control driver module to the input power rectifying and wave-filtering after multiplication of voltage.
At input terminal AC
1, AC
2During the different voltage of two kinds of access mains supply and electrical source of power, the voltage sample module is sampled to input voltage, voltage signal after the sampling inputs to control module, control module control driver module, driver module is carried out power supply access rectifying and wave-filtering times die block, and the power supply that rectifying and wave-filtering times die block docks carries out filtering multiplication of voltage after the rectification, according to different input voltages, the filtering multiplication of voltage is output after input power is mains supply when being 220V, carries out rectification.When input power is electrical source of power 380V, do not carry out multiplication of voltage, after the rectification, carry out filtering output.
In the duplicate supply change-over circuit of above-mentioned inverter type welder, a described rectifying and wave-filtering times die block comprises rectification circuit and filtering voltage doubling unit, described filtering voltage doubling unit comprises several capacitance group and several resistor group of two outputs of rectification circuit that are connected in parallel, described capacitance group and resistor group interval are in parallel, described each capacitance group comprises two electric capacity that are connected in series, described each resistor group comprises two resistance that are connected in series, above-mentioned control module connects respectively an electric capacity binding post in each capacitance group and the terminals between another electric capacity binding post by driver module, and described driver module connects respectively a resistor wiring terminal in each resistor group and the terminals between another resistor wiring terminal.
In the primary work loop of inverter type welder, inversion module was directly exported in filtering after input power carried out first rectification, carry out reduced output voltage after the inversion, here output and the filter circuit at rectification circuit forms the filtering voltage doubling unit, when being mains supply 220V, the voltage of access carries out multiplication of voltage, rectification circuit is exported to capacitor charging, and electric current is the half circumferential capacitor charging on the same group just, and the negative half period of electric current has capacitor charging to other.The voltage that forms on such capacitance group is the twice of former input voltage.Reached the purpose of multiplication of voltage.
In the duplicate supply change-over circuit of above-mentioned inverter type welder, capacitance group on the described filtering voltage doubling unit is 4, described resistor group corresponds to 4, be connected in parallel two outputs of rectification module of a described capacitance group, described capacitance group and resistor group interval are connected in parallel, and a described resistor group is connected in parallel to two inputs of inverter.The many of resistor group and capacitance group are more stable to the multiplication of voltage of filtering voltage doubling unit to parallel connection, reach simultaneously efficient filter action, so that input power also can not be subjected to the impact of high-frequency electric wave in the handoff procedure of 220V input and 380V input.
In the duplicate supply change-over circuit of above-mentioned inverter type welder, described power supply supplementary module comprises photoelectrical coupler U
1Be connected input AC
1Piezo-resistance RT
1, described piezo-resistance RT
1With photoelectrical coupler U
1Light-emitting diode between Opposite direction connection voltage stabilizing didoe D is arranged
6, described photoelectrical coupler U
1Light-emitting diode and input AC
2Between be connected with diode D
5, described photoelectrical coupler U
1The negative pole of light-emitting diode connect diode D
5Positive pole, described diode D
5Negative pole series resistance R
1Connect input AC
2The power supply supplementary module is here realized the voltage stabilizing input of power supply, in case voltage is excessive, by photoelectrical coupler input power and control module is isolated simultaneously, makes control module not be subjected to the impact of power supply electric wave.
In the duplicate supply change-over circuit of above-mentioned inverter type welder, described driver module comprises for carrying out controls the relay K T that power supply is input as 380V/220V voltage
2, be used for to carry out control inputs terminal AC
1With input terminal AC
2Access respectively the relay K T of rectifying and wave-filtering voltage-multiplying circuit
1, relay K T
3, described relay K T
2Switch contact connect respectively rectification circuit and detect between the power circuit of input described input terminal AC
2And be in series with relay K T between the rectifying and wave-filtering multiplication of voltage module input
1Normal open switch and input terminal AC
1And be in series with relay K T between the input of rectification circuit
3Normal open switch, described control module is by field effect transistor Q
2Connect relay K T
1, relay K T
3With relay K T
2Coil.Behind the welding machine access power supply, by the input of control module by drive circuit control power supply, also judge control inputs power pin docking filtering voltage doubling unit according to the input supply voltage that detects simultaneously.
In the duplicate supply change-over circuit of above-mentioned inverter type welder, described power supply supplementary module also comprises connection input AC
1The surge protection unit, described surge protection unit comprises resistance R
11, resistance R
12, resistance R
13With fuse R
18, described thermistor R
11, thermistor R
12, thermistor R
13With fuse R
18Be connected in series in successively input AC
1And between the rectification module.When electric welding machine was worked, by the not adhesive of relay switch contacts of drive circuit control, main power source again resistance directly was added in the rectification circuit on the input terminal, and the process that powers on can produce surge current, and surge current is by above-mentioned thermistor R
11, thermistor R
12, thermistor R
13With fuse R
18Series connection absorbs successively, realizes the purpose of start surge protection.
Compared with prior art, the duplicate supply change-over circuit of the utility model inverter type welder has the following advantages:
1, the utility model is by carrying out a times pressure-controlled to the different electrical power of input, thereby so that a kind of contravariant welding machine electric power is applicable to the adaptability that mains supply 1～220VAC and electrical source of power 1～380VAC duplicate supply strengthen welding motor.
2, the utility model is by rectifying and wave-filtering times die block, realize after the rectification inputting the rectification and voltage multiplier of 1～220VAC power supply, and voltage-multiplying circuit is more powerful, uses more stable to the switching of mains supply 1～220VAC and electrical source of power 1～380VAC.
Description of drawings
Fig. 1 is the two-supply circuit schematic diagram of inverter type welder;
Fig. 2 is the schematic diagram of rectifying and wave-filtering of the present utility model times die block;
Fig. 3 is driver module structural representation of the present utility model.
Embodiment
Below be specific embodiment of the utility model, and by reference to the accompanying drawings, the technical solution of the utility model be further described, but the utility model is not limited to these embodiment.
Such as Fig. 1, Fig. 2, shown in Figure 3, the duplicate supply change-over circuit of this inverter type welder comprises for two lead-out terminals that connect the welding machine major loop, for the input terminal AC that connects power supply
1With input terminal AC
2Also comprise for connecting input terminal AC
1With input terminal AC
2Power supply supplementary module and the control module that is connected the power supply supplementary module.The power supply supplementary module comprises photoelectrical coupler U
1Be connected input AC
1Piezo-resistance RT
1, piezo-resistance RT
1With photoelectrical coupler U
1Light-emitting diode between Opposite direction connection voltage stabilizing didoe D is arranged
6, photoelectrical coupler U
1Light-emitting diode and input AC
2Between be connected with diode D
5, photoelectrical coupler U
1The two ends of light-emitting diode be connected in parallel to capacitor C
11, photoelectrical coupler U
1The negative pole of light-emitting diode connect diode D
5Positive pole, diode D
5Negative pole series resistance R
1Connect input AC
2The power supply supplementary module also comprises connection input AC
1The surge protection unit, the surge protection unit comprises resistance R
11, resistance R
12, resistance R
13With fuse R
18, thermistor R
11, thermistor R
12, thermistor R
13With fuse R
18Be connected in series in successively input AC
1And between the rectification module.
The control module input connects the voltage sample module for detection of the power supply input, the control module output also is connected with driver module, driver module is connected with for the control signal that provides according to the control module rectifying and wave-filtering times die block of voltage after the rectification extraordinarily, when control module is used for receiving the voltage sample module and detects voltage and be mains supply the control driver module to the input power rectifying and wave-filtering after multiplication of voltage.Driver module comprises for carrying out controls the relay K T that power supply is input as 380V/220V voltage
2, be used for to carry out control inputs terminal AC
1With input terminal AC
2Access respectively the relay K T of rectifying and wave-filtering voltage-multiplying circuit
1, relay K T
3, described relay K T
2Switch contact connect respectively rectification circuit and detect between the power circuit of input input terminal AC
2And be in series with relay K T between the rectifying and wave-filtering multiplication of voltage module input
1Normal open switch and input terminal AC
1And be in series with relay K T between the input of rectification circuit
3Normal open switch, control module is by field effect transistor Q
2Connect relay K T
1, relay K T
3With relay K T
2Coil.Control module is by control field effect transistor Q
2Conducting comes control relay KT
1, KT
3And KT
2The coil conducting.
A rectifying and wave-filtering times die block comprises rectification circuit and filtering voltage doubling unit, and rectification circuit passes through P
1And P
2Two rectifier bridges connect to form.The filtering voltage doubling unit comprises several capacitance group and several resistor group of two outputs of rectification circuit that are connected in parallel, capacitance group and resistor group interval are in parallel, each capacitance group comprises two electric capacity that are connected in series, each resistor group comprises two resistance that are connected in series, above-mentioned control module connects respectively an electric capacity binding post in each capacitance group and the terminals between another electric capacity binding post by driver module, and driver module connects respectively a resistor wiring terminal in each resistor group and the terminals between another resistor wiring terminal.Here the capacitance group on the filtering voltage doubling unit is 4 under the optimal mode, the corresponding capacitance group of resistor group is 4, be connected in parallel two outputs of rectification module of one capacitance group, capacitance group and resistor group interval are connected in parallel, and a resistor group is connected in parallel to two inputs of inverter.
Concrete filtering voltage doubling unit comprises capacitor C
1-C
5And resistance R
1-R
8, capacitor C
1And capacitor C
2Be connected into capacitance group one, capacitor C
3And capacitor C
4Be connected into capacitance group two, capacitor C
5And capacitor C
6Be connected into capacitance group three, capacitor C
7And capacitor C
8Be connected into capacitance group four, resistance R
1And resistance R
2Be connected into resistor group one, R
3And R
4Be connected into resistor group two, resistance R
5And resistance R
6Be connected into resistor group three, resistance R
7And resistance R
8Be connected into resistor group four, capacitance group one, two, three, four and resistor group one, two, three, the four intervals both positive and negative polarity with rectification circuit output end in parallel respectively, input terminal AC
2By the relay normally open switch connect respectively capacitance group one, two, three, four and resistor group one, two, three, two electric capacity of same capacitance group of four between the indirect line end and the indirect line end between two resistance of same resistor group.
In the primary work loop of inverter type welder, inversion module was directly exported in filtering after input power carried out first rectification, carry out reduced output voltage after the inversion, here output and the filter circuit at rectification circuit forms the filtering voltage doubling unit, when being mains supply 220V, the voltage of access carries out multiplication of voltage, rectification circuit is exported to capacitor charging, and electric current is the half circumferential capacitor charging on the same group just, and the negative half period of electric current has capacitor charging to other.The voltage that forms on such capacitance group is the twice of former input voltage.Reached the purpose of multiplication of voltage.
Below be operation principle of the present utility model:
The concrete main circuit workflow of welding motor is: input power carries out carrying out step-down rectifier by inversion behind the rectifying and wave-filtering again and then exports.
When power supply input 1～AC220V, through input terminal AC
1, AC
2Input.AC
1Pass through resistance R
11, resistance R
12, resistance R
13With fuse R
18, this prevents the surge current starting protection for start.Power supply is through the output of surge protection unit, voltage stabilizing didoe D
6Reverse breakdown plays the effect of voltage stabilizing, photoelectrical coupler U
1Conducting, the Q on the control circuit
2The field effect transistor triggering and conducting, control relay KT
2, KT
1, KT
3Coil conducting work.Relay K T
2Switch is got to the defeated 220V input of power supply, relay K T
1, KT
1Normal open switch is closed, power supply AC
2Through relay K T
1Closing Switch is carried out multiplication of voltage to the capacitor charging of filtering voltage doubling unit, by inverter interface X among the figure
1Output 610V direct current.Relay K T
3Be complete machine power supply main relay.
When power supply input 1～AC380V, control module control power supply is through input terminal AC
1, AC2 input, the same input terminal AC
1On power supply by relay K T
3Switch, relay K T2 switch are got to the defeated 220V input of power supply, and AC2 passes through KT
3Switch connects rectification circuit, supplies inverter interface X by the direct current that obtains 540V behind the rectifying and wave-filtering
1
Use in sum the power supply input of 1～220VAC as the client, we make the input power multiplication of voltage by after the voltage detecting by Control, the direct current of output 610V.Simultaneously can set power supply overvoltage protection and overcurrent protection at this, and the under-voltage and overvoltage protection during input power.The direct direct current by rectifying and wave-filtering output 540V of multiplication of voltage not when using 1～380VAC power supply.Here select the withstand voltage field effect transistor of 900V, the duplicate supply change-over circuit of this sample inverter type welder is safer, and is reliable, efficient, goes for using certain power supply of 1～220VAC or 1～380VAC.
Specific embodiment described herein only is to the utility model explanation for example.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (6)
1. the duplicate supply change-over circuit of an inverter type welder comprises for two lead-out terminals that connect the welding machine major loop, for the input terminal AC that connects power supply
1With input terminal AC
2, it is characterized in that, also comprise for connecting input terminal AC
1With input terminal AC
2Power supply supplementary module and the control module that is connected the power supply supplementary module, described control module input connects the voltage sample module for detection of the power supply input, described control module output also is connected with driver module, described driver module is connected with for the control signal that provides according to the control module rectifying and wave-filtering times die block of voltage after the rectification extraordinarily, when described control module is used for receiving the voltage sample module and detects voltage and be mains supply the control driver module to the input power rectifying and wave-filtering after multiplication of voltage.
2. the duplicate supply change-over circuit of inverter type welder according to claim 1, it is characterized in that, in the duplicate supply change-over circuit of above-mentioned inverter type welder, a described rectifying and wave-filtering times die block comprises rectification circuit and filtering voltage doubling unit, described filtering voltage doubling unit comprises several capacitance group and several resistor group of two outputs of rectification circuit that are connected in parallel, described capacitance group and resistor group interval are in parallel, described each capacitance group comprises two electric capacity that are connected in series, described each resistor group comprises two resistance that are connected in series, above-mentioned control module connects respectively an electric capacity binding post in each capacitance group and the terminals between another electric capacity binding post by driver module, and described driver module connects respectively a resistor wiring terminal in each resistor group and the terminals between another resistor wiring terminal.
3. the duplicate supply change-over circuit of inverter type welder according to claim 2, it is characterized in that, capacitance group on the described filtering voltage doubling unit is 4, described resistor group corresponds to 4, be connected in parallel two outputs of rectification module of a described capacitance group, described capacitance group and resistor group interval are connected in parallel, and a described resistor group is connected in parallel to two inputs of inverter.
4. according to claim 1 and 2 or the duplicate supply change-over circuit of 3 described inverter type welders, it is characterized in that described power supply supplementary module comprises photoelectrical coupler U
1Be connected input AC
1Piezo-resistance RT
1, described piezo-resistance RT
1With photoelectrical coupler U
1Light-emitting diode between Opposite direction connection voltage stabilizing didoe D is arranged
6, described photoelectrical coupler U
1Light-emitting diode and input AC
2Between be connected with diode D
5, described photoelectrical coupler U
1The negative pole of light-emitting diode connect diode D
5Positive pole, described diode D
5Negative pole series resistance R
1Connect input AC
2
5. the duplicate supply change-over circuit of inverter type welder according to claim 4 is characterized in that, described driver module comprises for carrying out controls the relay K T that power supply is input as 380V/220V voltage
2, be used for to carry out control inputs terminal AC
1With input terminal AC
2Access respectively the relay K T of rectifying and wave-filtering voltage-multiplying circuit
1, relay K T
3, described relay K T
2Switch contact connect respectively rectification circuit and detect between the power circuit of input described input terminal AC
2And be in series with relay K T between the rectifying and wave-filtering multiplication of voltage module input
1Normal open switch and input terminal AC
1And be in series with relay K T between the input of rectification circuit
3Normal open switch, described control module is by field effect transistor Q
2Connect relay K T
1, relay K T
3With relay K T
2Coil.
6. the duplicate supply change-over circuit of inverter type welder according to claim 5 is characterized in that, described power supply supplementary module also comprises connection input AC
1The surge protection unit, described surge protection unit comprises resistance R
11, resistance R
12, resistance R
13With fuse R
18, described thermistor R
11, thermistor R
12, thermistor R
13With fuse R
18Be connected in series in successively between input AC1 and the rectification module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220523259 CN202817892U (en) | 2012-10-11 | 2012-10-11 | Double power switching circuit of inverter welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220523259 CN202817892U (en) | 2012-10-11 | 2012-10-11 | Double power switching circuit of inverter welding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202817892U true CN202817892U (en) | 2013-03-20 |
Family
ID=47876704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220523259 Expired - Fee Related CN202817892U (en) | 2012-10-11 | 2012-10-11 | Double power switching circuit of inverter welding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202817892U (en) |
Cited By (10)
| 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 |
| CN103600156A (en) * | 2013-10-22 | 2014-02-26 | 浙江劳士顿焊接设备有限公司 | Welding machine capable of identifying and switching double voltages automatically |
| CN105896783A (en) * | 2016-05-20 | 2016-08-24 | 杨建华 | Dual-power-supply motor applicable to single-phase 220V and two-phase 380V |
| CN106051263A (en) * | 2016-06-20 | 2016-10-26 | 航天科工哈尔滨风华有限公司电站设备分公司 | Double-power-source intelligent electric executing mechanism |
| CN107425708A (en) * | 2017-08-04 | 2017-12-01 | 温岭阿凡达机电有限公司 | Auxiliary power circuit and its control method |
| CN107834695A (en) * | 2017-11-08 | 2018-03-23 | 柏宜照明（上海）股份有限公司 | A kind of fire-fighting equipment power supply with relay protection circuit |
| CN108155688A (en) * | 2017-12-26 | 2018-06-12 | 中国航发四川燃气涡轮研究院 | A kind of dual power supply portable point welder |
| CN109239451A (en) * | 2018-08-24 | 2019-01-18 | 上海沪工焊接集团股份有限公司 | A kind of the input voltage test method and its circuit of Dual-power automatic switching welding machine |
| CN111014889A (en) * | 2019-12-25 | 2020-04-17 | 浙江颐顿机电有限公司 | Single-phase full-network-communication inverter welding machine circuit |
| US11192201B2 (en) | 2018-08-24 | 2021-12-07 | Shanghai Hugong Electric (Group) Co., Ltd. | Double-power-supply switching control system for a welding machine and method |
-
2012
- 2012-10-11 CN CN 201220523259 patent/CN202817892U/en not_active Expired - Fee Related
Cited By (13)
| 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 |
| CN103600156A (en) * | 2013-10-22 | 2014-02-26 | 浙江劳士顿焊接设备有限公司 | Welding machine capable of identifying and switching double voltages automatically |
| CN105896783B (en) * | 2016-05-20 | 2018-05-29 | 杨建华 | A kind of dual power supply motor for single-phase 220V and two-phase 380V |
| CN105896783A (en) * | 2016-05-20 | 2016-08-24 | 杨建华 | Dual-power-supply motor applicable to single-phase 220V and two-phase 380V |
| CN106051263A (en) * | 2016-06-20 | 2016-10-26 | 航天科工哈尔滨风华有限公司电站设备分公司 | Double-power-source intelligent electric executing mechanism |
| CN107425708A (en) * | 2017-08-04 | 2017-12-01 | 温岭阿凡达机电有限公司 | Auxiliary power circuit and its control method |
| CN107834695A (en) * | 2017-11-08 | 2018-03-23 | 柏宜照明（上海）股份有限公司 | A kind of fire-fighting equipment power supply with relay protection circuit |
| CN108155688A (en) * | 2017-12-26 | 2018-06-12 | 中国航发四川燃气涡轮研究院 | A kind of dual power supply portable point welder |
| CN108155688B (en) * | 2017-12-26 | 2021-04-20 | 中国航发四川燃气涡轮研究院 | Portable spot welding device with double power supplies |
| CN109239451A (en) * | 2018-08-24 | 2019-01-18 | 上海沪工焊接集团股份有限公司 | A kind of the input voltage test method and its circuit of Dual-power automatic switching welding machine |
| CN109239451B (en) * | 2018-08-24 | 2020-09-04 | 上海沪工焊接集团股份有限公司 | Input voltage test method and circuit of dual-power automatic switching welding machine |
| US11192201B2 (en) | 2018-08-24 | 2021-12-07 | Shanghai Hugong Electric (Group) Co., Ltd. | Double-power-supply switching control system for a welding machine and method |
| CN111014889A (en) * | 2019-12-25 | 2020-04-17 | 浙江颐顿机电有限公司 | Single-phase full-network-communication inverter welding machine circuit |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20151011 |
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