CN201760694U - Inversion type AC/DC pulse non-melting pole inert gas protection welder - Google Patents
Inversion type AC/DC pulse non-melting pole inert gas protection welder Download PDFInfo
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- CN201760694U CN201760694U CN2010205387179U CN201020538717U CN201760694U CN 201760694 U CN201760694 U CN 201760694U CN 2010205387179 U CN2010205387179 U CN 2010205387179U CN 201020538717 U CN201020538717 U CN 201020538717U CN 201760694 U CN201760694 U CN 201760694U
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Abstract
The utility model relates to the field of electric welder products, concretely relates to an inversion type AC/DC pulse non-melting pole inert gas protection welder, which comprises a main current circuit mainly composed of an electromagnetic compatible circuit, a startup protection circuit, a primary rectification circuit, a wave filter circuit, an inverter circuit, a transforming circuit, a secondary rectification circuit, a reactance afterflow circuit, a secondary inverter circuit, a high-frequency striking circuit and an AC output circuit which are connected according to the order of the current circulating direction; the current is divided into two branch circuits in the secondary rectification circuit, one branch circuit of which enters into a main control circuit by a feedback given circuit, and respectively enters into a main current circuit respectively through the a primary drive circuit and a drive module, a secondary drive circuit, and a high-frequency generator. The utility model contains the welding function of the common arc welder, can save the apparatuses and funds and provide the convenience for application.
Description
Technical field
The utility model relates to the electric welding machine product scope, is specifically related to a kind of contravariant alternating current-direct current pulse non-melt pole inert gas-shielded arc welding machine.
Background technology
The air plasma arc cutting is to rely on the plasma arc of high temperature and high speed and flame stream thereof, part metals fusing and evaporation, and the matrix that blows off, form joint-cutting along with moving of plasma arc cutting torch.Because the temperature of its arc column is higher than the fusing point of present most metal and oxide thereof far away, so it can cut most materials.The air plasma cutting has been widely used in the plate cutting in the productions such as automobile, rolling stock, chemical industry, boats and ships, machine room, ventilation, environmental protection.
Electric arc welding power supply manufacturing enterprise is more in the industry at present, the market that different proportion is all arranged from the most original mechanical adjustment type Arc Welding Power, Electromagnetic Control type arc welding, to the arc-welding of state-of-the-art Electronic Control type contravariant, but it seems from trend energy-conservation and the environmental protection development, preceding two kinds of type of skills will be eliminated, in fact existing market is to be nibbled gradually by the Electronic Control type, its share reduces gradually, and greatly developing the arc-welding of Electronic Control type contravariant has been inevitable.The arc-welding of production Electronic Control type contravariant also has enterprises quite a lot in the industry, and simultaneously a lot of conventional art type manufacturing enterprises also recognize the trend in market, just progressively begins transition on product technology.The technology of existing Electronic Control type contravariant arc-welding is also multifarious, and its quality and scale are very different.
Arc welding method in the industry mainly contains now: manual electric arc welding, tungsten electrode direct current constant current argon arc welding, DC pulse argon arc welding, interchange constant current argon arc welding, alternating-current pulse argon arc welding etc., but when using above arc welding method, need to utilize the arc welding equipment corresponding with this arc welding method, when in welding process, needing to use multiple arc welding method, just need utilize many arc welding equipments, make that cost is also very high in the welding job process very trouble that becomes.
Summary of the invention
For overcoming above-mentioned defective, the purpose of this utility model promptly is to provide a kind of contravariant alternating current-direct current pulse non-melt pole inert gas-shielded arc welding machine.
The purpose of this utility model is achieved through the following technical solutions:
A kind of contravariant alternating current-direct current of the utility model pulse non-melt pole inert gas-shielded arc welding machine comprises:
Be linked in sequence by the current flowing direction: the principal current circuit of electromagnetic compatibility circuit, startup holding circuit, rectification circuit, filter circuit, inverter circuit, transforming circuit, secondary rectification circuit, reactance freewheeling circuit, secondary inverter circuit, high-frequency arc ignition circuit and a dc output circuit composition;
Electric current is divided into two branch roads in described secondary rectification circuit, the one tunnel enters the reactance freewheeling circuit and along the principal current line conduction, and another road enters main control circuit by the feedback given circuit;
Described electric current is divided into three branch roads after entering main control circuit, first branch current enters a inverter circuit in the described principal current circuit by drive circuit and driver module successively, second branch current enters secondary inverter circuit in the described principal current circuit by the secondary drive circuit, and the 3rd branch current enters high-frequency arc ignition circuit in the described principal current circuit by radio-frequency generator;
Described main control circuit also is connected with first accessory power supply, control input circuit, overcurrent overheat testing circuit, unusual indicating circuit, arc welding gun switch control circuit, air valve;
Described first accessory power supply is used to described main control circuit, a drive circuit that working power is provided;
Described control input circuit is used for to described main control circuit input control information;
When described overcurrent overheat testing circuit is used for current value on detecting circuit and temperature value and surpasses threshold value, send stopping signal to described main control circuit;
Described unusual indicating circuit is used for when receiving the stopping signal that described main control circuit sends, the display abnormality indication;
Described arc welding gun switch control circuit is used for sending the arc welding gun switch signal to described main control circuit;
Described air valve is used for the control information according to described main control circuit transmission, carries out switching manipulation;
Described secondary drive circuit also is connected with second accessory power supply, is used for providing power supply to the secondary drive circuit.
The utility model has manual electric arc welding, tungsten electrode direct current constant current argon arc welding, DC pulse argon arc welding simultaneously, exchanges constant current argon arc welding, alternating-current pulse argon arc welding function, make compatibility of the present utility model improve greatly, switching between multiple arc welding method is very convenient, saved a large amount of equipment and production cost, provide great convenience to the user.
Description of drawings
In order to be easy to explanation, the utility model is done to describe in detail by following preferred embodiment and accompanying drawing.
Fig. 1 is a circuit working schematic flow sheet of the present utility model;
Fig. 2 is a pulse control circuit schematic diagram of the present utility model;
Fig. 3 is an AC control circuit schematic diagram of the present utility model;
Fig. 4 is a secondary inverter circuit schematic diagram of the present utility model;
Fig. 5 is a structural principle schematic diagram of the present utility model.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
See also Fig. 1, a kind of contravariant alternating current-direct current of the utility model pulse non-melt pole inert gas-shielded arc welding machine comprises:
Be linked in sequence by the current flowing direction: electromagnetic compatibility circuit 1, start the principal current circuit that holding circuit 2, rectification circuit 3, filter circuit 4, inverter circuit 5, transforming circuit 6, secondary rectification circuit 7, reactance freewheeling circuit 8, secondary inverter circuit 9, high-frequency arc ignition circuit 10 and a dc output circuit 11 are formed;
Electric current is divided into two branch roads in described secondary rectification circuit 7, the one tunnel enters reactance freewheeling circuit 8 and along the principal current line conduction, and another road enters main control circuit 16 by feedback given circuit 15;
Described electric current is divided into three branch roads after entering main control circuit 16, first branch current enters a inverter circuit 5 in the described principal current circuit by drive circuit 17 and driver module 18 successively, second branch current enters high-frequency arc ignition circuit 10 in the described principal current circuit by secondary inverter circuit 9, the three branch currents that secondary drive circuit 21 enters in the described principal current circuit by radio-frequency generator 22;
Described main control circuit 16 also is connected with first accessory power supply 19, control input circuit 14, overcurrent overheat testing circuit 24, unusual indicating circuit 23, arc welding gun switch control circuit 13, air valve 12;
Described first accessory power supply 19 is used to described main control circuit 16, a drive circuit 17 that working power is provided;
Described control input circuit 14 is used for to described main control circuit 16 input control informations;
When described overcurrent overheat testing circuit 24 is used for current value on detecting circuit and temperature value and surpasses threshold value, send stopping signals to described main control circuit 16;
Described unusual indicating circuit 23 is used for when receiving the stopping signal that described main control circuit 16 sends, the display abnormality indication;
Described arc welding gun switch control circuit 13 is used for sending the arc welding gun switch signal to described main control circuit 16;
Described air valve 12 is used for the control information according to described main control circuit 16 transmissions, carries out switching manipulation;
Described secondary drive circuit 21 also is connected with second accessory power supply 20, is used for providing power supply to secondary drive circuit 21.
In the above-described embodiments, the each several part circuit theory is as follows:
Electromagnetic compatibility circuit 1: reduce of the pollution of this machine, reduce the interference of electrical network simultaneously, make it in the scope that requires to this machine to electrical network.
Start holding circuit 2: this circuit comprises overvoltage crowbar, the power initiation circuit.Electric current can only be by starting resistance in order to limit inrush currents when start.After the operate as normal, starting resistance is by the relay short circuit.For the high pressure of avoiding bringing because of misconnection 380V and power network fluctuation damages machine, requiring can safe starting, cuts off current supply circuit after the overvoltage, thereby does not damage back level work circuit.
Rectification circuit 3: the 50Hz industrial-frequency alternating current of input is converted to direct current.
Filter circuit 4: the direct current of pulsation is become level and smooth galvanic current.
Inverter circuit 5: adopt full-bridge circuit, finish the inversion of direct current and export stable high-frequency ac current.
Transforming circuit 6: the high pressure isolated variable of 308V is become to be fit to the needed tens volts low pressure of arc welding.
Secondary rectification circuit 7: high-frequency ac is converted to direct current output.
Reactance freewheeling circuit 8: have flat ripple afterflow effect, can make the output current continous-stable that becomes, guarantee welding quality.
Secondary inverter circuit 9: the direct current another mistake of secondary rectifying and wave-filtering output is become ac square wave output or direct current is directly exported.
High-frequency arc ignition circuit 10: the high voltagehigh frequency that radio-frequency generator is produced is ac-coupled to welding circuit, helps to set up electric arc.
Dc output circuit 11: external welding cable carries out welding operation.
Air valve 12: for the control of argon gas break-make.
Arc welding gun switch control circuit 13: isolate and transmit the arc welding gun switch signal, guarantee that control circuit is not subjected to High-frequency Interference.
Control input circuit 14: the setting of welding function conversion, welding parameter is provided.
Feedback given circuit 15: the given signal of current sampling and interface of output is compared, obtain error signal by integral controller, control power processor pulsewidth makes output keep stable.
Main control circuit 16: comprise control circuits such as PWM power processor control circuit, gas control circuit, arc ignition control circuit, pulse control circuit, AC control circuit, the conversion of welding function.
A drive circuit 17: the control wave to control circuit output amplifies.
Driver module 18: transformer and waveform shaping circuit by 1 elementary winding and 4 secondary windings are formed, and provide the switching signal of the required out of phase of inversion to full-bridge, and assurance and control loop are isolated transmission and driven signal.
First accessory power supply 19: stable low-voltage dc power supply is provided for main control circuit, a drive circuit.
Second accessory power supply 20: stable low-voltage dc power supply is provided for the secondary drive circuit, and isolates with main control circuit and primary circuit.
Secondary drive circuit 21: amplify control signal and the switching signal of out of phase is provided for the secondary inversion.
Radio-frequency generator 22: by boosting, again through 4 voltage multiplying rectifiers, discharge resonance circuit, the generation high voltagehigh frequency formed by the discharge mouth exchange with the elementary voltage of going up of main transformer.
Unusual indicating circuit 23: overcurrent and superheating phenomenon to main frame show that it is overheated to revert to voluntarily in the short time after indicator lamp is bright, can not recover voluntarily after indicator lamp is bright, revert to overcurrent after the need start restarts.
Overcurrent overheat testing circuit 24: detect a major loop operating current by current transformer,, just stop inverter circuit work by control module in case electric current surpasses permissible value.Thermoswitch is installed on the main transformer side, and the thermoswitch action also stops inverter circuit work by control module when temperature reaches the point of safes of main transformer.
Further, described main control circuit 16 comprises: PWM power processor control circuit, gas control circuit, arc ignition control circuit, pulse control circuit, AC control circuit, welding function conversion control circuit.
Further, described pulse control circuit is made up of first pulse generating circuit, pulse width adjusting circuit, pulse base value adjustment circuit.Concrete structure as shown in Figure 2, this pulse control circuit is mainly by operational amplifier U1B, resistance R 2-R5, capacitor C 1, adjustable VR1 constitute pulse generating circuit, CON1 outside connected switch decision pulse has or not adjustable VR1 regulating impulse frequency.Operational amplifier U1C, resistance R 6-R8, adjustable VR2, voltage-stabiliser tube Z1 constitute pulse width adjusting circuit, and adjustable VR2 paired pulses dutycycle is adjusted.Adjustable VR3, diode D1 constitute the pulse base value and adjust circuit, and adjustable VR3 paired pulses base value is adjusted.
Further, described AC control circuit has or not control circuit, interchange cleaning width adjustment circuit, AC driving circuit to form by second pulse generating circuit, interchange.Concrete structure as shown in Figure 3, this AC control circuit is mainly by operational amplifier U1D, resistance R 14-R17, capacitor C 6, constitutes pulse generating circuit.Triode Q1, resistance R 11-R13, voltage-stabiliser tube Z2, capacitor C 5, CON2 outside connected switch, formation exchange and have or not control circuit.Operational amplifier U2A, resistance R 18-R20, adjustable VR4, voltage-stabiliser tube Z3, diode D3, D4, capacitor C 7, C8 constitute interchange cleaning width adjustment circuit, and adjustable VR4 adjusts exchanging the cleaning width.Operational amplifier U3A, U3B, resistance R 21-R24, diode D5-D8 constitute AC driving circuit.
Further, described secondary inverter circuit comprises: full-bridge secondary inverter circuit and absorption and arc ignition circuit; Concrete structure is as shown in Figure 4:
This full-bridge secondary inverter circuit mainly is made up of FET Q1-Q4, fet gate flows resistance R8-R11, FET grid source electrode clamp voltage-stabiliser tube D4-D11, and INPUT is the input of secondary direct current, and OUTPUT is ac square wave or the output of secondary direct current; Absorption and arc ignition circuit mainly are made up of capacitor C 1-C8, resistance R 1-R7, FET Q5, diode D1-D1.
The utility model is a kind of non-melt pole inert gas-shielded arc welding machine that has manual electric arc welding, tungsten electrode direct current constant current argon arc welding, DC pulse argon arc welding simultaneously, exchanges constant current argon arc welding, alternating-current pulse argon arc welding function; it is an insulating gate type field effect tube Electronic Control type inverter arc welding power source; be divided into once and two inverter movements of secondary; arrange about one-tenth; each inverter movement is installed with the combination of left and right sides structure aluminium section bar radiator by two boards about the PCBA and is formed, and constitutes horizontal air channel.Mounting structure of the present utility model as shown in Figure 5 is specially as detailed below:
An inversion partly comprises electromagnetic compatibility plate 33, base plate 31, middle plate 32, control panel 28, the given plate 29 of parameter.Be placed with in the described base plate 31 and start holding circuit 2, a rectification circuit 3 and a filter circuit 4; Be placed with driver module 18, an inverter circuit 5 in the described upper plate 25; Plate 11 is placed with transforming circuit 6, secondary rectification circuit 7 in described; Be placed with accessory power supply 19, feedback given circuit 15, arc welding gun switch control circuit 13, gas control circuit, arc ignition control circuit, pulse control circuit, AC control circuit, welding function conversion control circuit for the first time in the described control panel 28.
The secondary inversion partly comprises 37 times 36 two boards on the full-bridge.High-frequency arc ignition circuit 10, reactance freewheeling circuit 8 are external.
Two groups of radiator 26 combination upper plates 25 constituted inverter movement and horizontal flow type air channel 34 with middle plate Unit 32 about one time inverter circuit passed through, power device field pipe, secondary rectification fast recovery diode are placed radiator both sides up and down, the air outlet that rectification silicon bridge 38 is loaded on the blower fan side-lower, heater members transformer 27 is placed in the wind chamber of movement, reactor 30 and striking device 31 place movement.Place at the bottom of the machine and will start 2, very low base plates 31 of temperature rise such as rectification circuit 3, filter circuit 4 and high frequency transformer of protection.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (5)
1. contravariant alternating current-direct current pulse non-melt pole inert gas-shielded arc welding machine, it is characterized in that, comprising: be linked in sequence: the principal current circuit of electromagnetic compatibility circuit, startup holding circuit, rectification circuit, filter circuit, inverter circuit, transforming circuit, secondary rectification circuit, reactance freewheeling circuit, secondary inverter circuit, high-frequency arc ignition circuit and a dc output circuit composition by the current flowing direction;
Electric current is divided into two branch roads in described secondary rectification circuit, the one tunnel enters the reactance freewheeling circuit and along the principal current line conduction, and another road enters main control circuit by the feedback given circuit;
Described electric current is divided into three branch roads after entering main control circuit, first branch current enters a inverter circuit in the described principal current circuit by drive circuit and driver module successively, second branch current enters secondary inverter circuit in the described principal current circuit by the secondary drive circuit, and the 3rd branch current enters high-frequency arc ignition circuit in the described principal current circuit by radio-frequency generator;
Described main control circuit also is connected with first accessory power supply, control input circuit, overcurrent overheat testing circuit, unusual indicating circuit, arc welding gun switch control circuit, air valve;
Described first accessory power supply is used to described main control circuit, a drive circuit that working power is provided;
Described control input circuit is used for to described main control circuit input control information;
When described overcurrent overheat testing circuit is used for current value on detecting circuit and temperature value and surpasses threshold value, send stopping signal to described main control circuit;
Described unusual indicating circuit is used for when receiving the stopping signal that described main control circuit sends, the display abnormality indication;
Described arc welding gun switch control circuit is used for sending the arc welding gun switch signal to described main control circuit;
Described air valve is used for the control information according to described main control circuit transmission, carries out switching manipulation;
Described secondary drive circuit also is connected with second accessory power supply, is used for providing power supply to the secondary drive circuit.
2. contravariant alternating current-direct current pulse non-melt pole inert gas-shielded arc welding machine according to claim 1; it is characterized in that described main control circuit comprises: PWM power processor control circuit, gas control circuit, arc ignition control circuit, pulse control circuit, AC control circuit, welding function conversion control circuit.
3. contravariant alternating current-direct current pulse non-melt pole inert gas-shielded arc welding machine according to claim 2 is characterized in that described pulse control circuit comprises: by operational amplifier, four resistance, and first pulse generating circuit that electric capacity, adjustable rheostat constitute; By operational amplifier, three pulse width adjusting circuits that resistance, adjustable rheostat, voltage-stabiliser tube constitute; Adjust circuit by the pulse base value that adjustable rheostat, diode constitute.
4. contravariant alternating current-direct current pulse non-melt pole inert gas-shielded arc welding machine according to claim 3 is characterized in that described AC control circuit comprises: by operational amplifier, four resistance, second pulse generating circuit of electric capacity, formation; The interchange that is made of triode, three resistance, voltage-stabiliser tube, electric capacity, outside connected switches has or not control circuit; By operational amplifier, three resistance, adjustable rheostat, voltage-stabiliser tube, two diodes, two interchange cleaning width adjustment circuit that electric capacity constitutes; By two operational amplifiers, four resistance, four AC driving circuits that diode constitutes.
5. contravariant alternating current-direct current pulse non-melt pole inert gas-shielded arc welding machine according to claim 4 is characterized in that described secondary inverter circuit comprises: full-bridge secondary inverter circuit and absorption and arc ignition circuit;
Described full-bridge secondary inverter circuit is made up of four FETs, four fet gate flows resistances, eight FET grid source electrode clamp voltage-stabiliser tubes;
Described absorption and arc ignition circuit are made up of eight electric capacity, seven resistance, FET, three diodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205387179U CN201760694U (en) | 2010-09-21 | 2010-09-21 | Inversion type AC/DC pulse non-melting pole inert gas protection welder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205387179U CN201760694U (en) | 2010-09-21 | 2010-09-21 | Inversion type AC/DC pulse non-melting pole inert gas protection welder |
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| CN201760694U true CN201760694U (en) | 2011-03-16 |
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| CN2010205387179U Expired - Fee Related CN201760694U (en) | 2010-09-21 | 2010-09-21 | Inversion type AC/DC pulse non-melting pole inert gas protection welder |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722319A (en) * | 2013-12-19 | 2014-04-16 | 上海广为焊接设备有限公司 | Electric welding machine and circuit control board system thereof |
| CN104439621A (en) * | 2014-11-05 | 2015-03-25 | 深圳华意隆电气股份有限公司 | Refined multifunctional welding system and control method thereof |
| CN106513936A (en) * | 2016-11-17 | 2017-03-22 | 安徽华生机电设备有限公司 | Multi-function precise aluminum welding machine circuit |
| CN106914682A (en) * | 2017-01-19 | 2017-07-04 | 上海广为焊接设备有限公司 | For the control system and its control method of AC-DC argon arc welding machine |
| CN109396608A (en) * | 2017-08-15 | 2019-03-01 | 浙江颐顿机电有限公司 | A kind of digitlization AC/DC pulse TIG Welding Machine system |
| CN110977103A (en) * | 2019-12-27 | 2020-04-10 | 逢来焊接技术(上海)有限公司 | Novel digital pulse gas shielded welding control circuit |
| CN116068699A (en) * | 2023-03-07 | 2023-05-05 | 南京迪威普光电技术股份有限公司 | Annular high-voltage arc generator with controllable strength and generation method |
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2010
- 2010-09-21 CN CN2010205387179U patent/CN201760694U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722319A (en) * | 2013-12-19 | 2014-04-16 | 上海广为焊接设备有限公司 | Electric welding machine and circuit control board system thereof |
| CN103722319B (en) * | 2013-12-19 | 2015-12-30 | 上海广为焊接设备有限公司 | The circuit control board system of electric welding machine and electric welding machine thereof |
| CN104439621A (en) * | 2014-11-05 | 2015-03-25 | 深圳华意隆电气股份有限公司 | Refined multifunctional welding system and control method thereof |
| CN104439621B (en) * | 2014-11-05 | 2016-08-31 | 深圳华意隆电气股份有限公司 | One becomes more meticulous Multifunctional welding welding system and control method thereof |
| CN106513936A (en) * | 2016-11-17 | 2017-03-22 | 安徽华生机电设备有限公司 | Multi-function precise aluminum welding machine circuit |
| CN106914682A (en) * | 2017-01-19 | 2017-07-04 | 上海广为焊接设备有限公司 | For the control system and its control method of AC-DC argon arc welding machine |
| CN106914682B (en) * | 2017-01-19 | 2019-07-12 | 上海广为焊接设备有限公司 | Control system and its control method for AC-DC argon arc welding machine |
| CN109396608A (en) * | 2017-08-15 | 2019-03-01 | 浙江颐顿机电有限公司 | A kind of digitlization AC/DC pulse TIG Welding Machine system |
| CN110977103A (en) * | 2019-12-27 | 2020-04-10 | 逢来焊接技术(上海)有限公司 | Novel digital pulse gas shielded welding control circuit |
| CN110977103B (en) * | 2019-12-27 | 2021-10-29 | 逢来焊接技术(上海)有限公司 | Novel digital pulse gas shielded welding control circuit |
| CN116068699A (en) * | 2023-03-07 | 2023-05-05 | 南京迪威普光电技术股份有限公司 | Annular high-voltage arc generator with controllable strength and generation method |
| CN116068699B (en) * | 2023-03-07 | 2023-08-29 | 南京迪威普光电技术股份有限公司 | Annular high-voltage arc generator with controllable strength and generation method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN HUAYILONG ELECTRIC CO., LTD. Free format text: FORMER NAME: SHENZHEN HUAYILONG INDUSTRIAL DEVELOPMENT CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 518000 Guangdong city of Shenzhen province Nanshan District Xili town honghualing Industrial District Three District Building Patentee after: Shenzhen Huayilong Industrial Development Co., Ltd Address before: 518000 Guangdong city of Shenzhen province Nanshan District Xili town honghualing Industrial District Three District Building Patentee before: Shenzhen HuaYiLong Industrial Development Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20190921 |
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| CF01 | Termination of patent right due to non-payment of annual fee |