CN202794338U - Electrochemical corrosion type strainometer automatic resistance-adjustment device - Google Patents
Electrochemical corrosion type strainometer automatic resistance-adjustment device Download PDFInfo
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- CN202794338U CN202794338U CN201220446765.4U CN201220446765U CN202794338U CN 202794338 U CN202794338 U CN 202794338U CN 201220446765 U CN201220446765 U CN 201220446765U CN 202794338 U CN202794338 U CN 202794338U
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Abstract
The utility model relates to the technical field of resistance measurement and correction, in particular to an electrochemical corrosion type strainometer automatic resistance-adjustment device which comprises a machine seat, a working table and a main control device. A longitudinal movement mechanism is installed on the machine seat, a horizontal movement mechanism is installed on the longitudinal movement mechanism and connected with a feeding mechanism, the feeding mechanism is provided with an electrochemical corrosion device and a probe, and the probe is electrically connected with a resistance detection circuit through a wire. The longitudinal movement mechanism, the horizontal movement mechanism, the feeding mechanism, the electrochemical corrosion device, and the probe and the resistance detection circuit are respectively electrically connected with the main control device to achieve mutual coordination work. The automatic resistance-adjustment device can not only automatically adjust resistance, reduce human cost and improve production efficiency, but also adjust resistance through an electrochemical corrosion type strainometer, the surface of the strainometer is not damaged and free of stress, resistance adjustment precision is improved, and quality and stability of the strainometer are improved.
Description
Technical field
The utility model relates to measurement and the correction technique field of resistance, refers in particular to the automatic resistance trimming device of a kind of galvanic corrosion formula strainometer.
Background technology
Strainometer is the element that is configured for monitor strain by sensitive grid, and it can be converted to resistance variations with the variation of strain on the mechanical component.Strain ga(u)ge is to be clipped in the two-layer heat insulating lamella by the constantan wire of Φ=0.02 ~ 0.05mm or nickel filament coiled palisade to make, and is connected with the strainometer wire grid with silver-coated copper wire again, goes between as strainometer.Resistance value wiry is except with material character is relevant, and also with length wiry, cross-sectional area is relevant, tinsel is sticked on the member, when member stress was out of shape, length wiry and cross-sectional area also changed along with member one, and then resistance variations occurs.
The resistance sensor that is most widely used is mainly used in the detection of mechanical quantity, such as the detection of the physical quantitys such as gravity, pressure, resistance accuracy is had relatively high expectations.Usually the strain ga(u)ge resistance of tentatively producing is lower, does not reach request for utilization.Therefore, half-finished strain ga(u)ge must carry out resistance trimming before use.At present, the resistance trimming of strain ga(u)ge mainly is the mechanical type resistance trimming.The operator connects the grinding head of absorbent cotton system by electro-motor, and smear abrasive pastes at grinding head, during the finishing resistance, the grid silk position of grinding head pressure holding strain ga(u)ge, electro-motor drives the grinding head rotation and produces grinding force, under the effect of grinding force, the attenuation of grid silk thickness, thus reach the purpose that resistance is repaired.
By the mechanical type resistance trimming, obviously can cause to a certain degree damage to the surface of strain ga(u)ge, and bring certain stress, uniformity coefficient and the precision of the adjustment of strainometer resistance be can not be guaranteed, and affect the long-term stability of using of strainometer.
Summary of the invention
The purpose of this utility model is to provide a kind of galvanic corrosion formula strainometer automatic resistance trimming device for the deficiencies in the prior art, not only realized the function of automatic resistance trimming, reduced human cost and enhanced productivity, and by the galvanic corrosion formula strainometer is carried out resistance trimming, strainometer surface nondestructive wound, unstressed, improve uniformity coefficient and precision that resistance is adjusted, greatly promoted quality and the long-term stability of using of strainometer.
For achieving the above object, the automatic resistance trimming device of a kind of galvanic corrosion formula strainometer of the present utility model, comprise support, be used for fixedly worktable and the main control unit of strainometer, described worktable is installed on described support, described support also is equipped with longitudinal moving mechanism, described longitudinal moving mechanism is equipped with transverse moving mechanism, described transverse moving mechanism is connected with feed mechanism, described feed mechanism is provided with the electrochemical corrosion device for the corrosion strainometer, described feed mechanism also is provided with the probe that contacts for strainometer, described probe is electrically connected with resistance detecting circuit by wire, described longitudinal moving mechanism, transverse moving mechanism, feed mechanism, electrochemical corrosion device, probe and resistance detecting circuit are electrically connected with main control unit respectively.
As preferably, described electrochemical corrosion device comprise be used to the liquid-holding bucket that contains electrochemical corrosive liquid, be used for the electrode of galvanic corrosion and be used for drying up electrochemical corrosive liquid blow the liquid pipe, described liquid-holding bucket, electrode and blow the fixed station that the liquid pipe is installed in respectively described feed mechanism, described electrode is electrically connected with described main control unit, and the described liquid pipe that blows is connected with the air supply pipe of outside.
As preferably, described longitudinal moving mechanism comprises longitudinal rail, vertical slide, vertical screw mandrel and vertical motor, described longitudinal rail is fixed in described support, described vertical slide is connected in described longitudinal rail slidably, described vertical screw mandrel is bolted in described vertical slide, described vertical motor is fixed in an end of described longitudinal rail, and the output shaft of described vertical motor is connected with described vertical screw mandrel.
As preferably, the both sides of described worktable are provided with longitudinal rail and vertical slide.
As preferably, described transverse moving mechanism comprises cross slide way, cross slide, cross lead screw and cross motor, described cross slide way is fixed in the top of described vertical slide, described cross slide is connected in described cross slide way slidably, described cross lead screw is bolted in described cross slide, described cross motor is fixed in an end of described cross slide way, and the output shaft of described cross motor is connected with described cross lead screw.
As preferably, described feed mechanism comprises vertical guide rail, vertical sliding, down-feed screw and motor vertical, described vertical guide rail is fixed in described cross slide, described vertical sliding is connected in described vertical guide rail slidably, described down-feed screw is bolted in described vertical sliding, described motor vertical is fixed in an end of described vertical guide rail, and the output shaft of described motor vertical is connected with described down-feed screw.
As preferably, described probe is connected with probe base, described probe base is installed on the below of vertical guide rail by the rotating shaft of vertical guide rail, the back side of described vertical guide rail is equipped with for the electromagnet that repels probe base, described electromagnet is electrically connected with described main control unit, is connected with extension spring between the rear of described probe base and the described vertical guide rail.
As preferably, the contact resistance of described probe measurement is less than 0.001 ohm.
As preferably, described main control unit is provided with the display screen that shows the strainometer resistance.
As preferably, the bottom of described support is provided with leg.
The beneficial effects of the utility model: the automatic resistance trimming device of a kind of galvanic corrosion formula strainometer, comprise support, be used for fixedly worktable and the main control unit of strainometer, described worktable is installed on described support, described support also is equipped with longitudinal moving mechanism, described longitudinal moving mechanism is equipped with transverse moving mechanism, described transverse moving mechanism is connected with feed mechanism, described feed mechanism is provided with the electrochemical corrosion device for the corrosion strainometer, described feed mechanism also is provided with the probe that contacts for strainometer, described probe is electrically connected with resistance detecting circuit by wire, described longitudinal moving mechanism, transverse moving mechanism, feed mechanism, electrochemical corrosion device, probe and resistance detecting circuit are electrically connected with main control unit respectively, this automatic resistance trimming device, not only realized the function of automatic resistance trimming, reduced human cost and enhanced productivity, and by the galvanic corrosion formula strainometer is carried out resistance trimming, the strainometer surface nondestructive is hindered, unstressed, improve uniformity coefficient and precision that resistance is adjusted, greatly promoted quality and the long-term stability of using of strainometer.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the left view after the utility model removes the brain main control unit.
Fig. 3 is the vertical view after the utility model removes the brain main control unit.
Fig. 4 is the stereographic map after the utility model removes the brain main control unit.
Fig. 5 is feed mechanism of the present utility model, the structural representation that electrochemical corrosion device is connected with probe.
Fig. 6 is the structural representation of the utility model longitudinal moving mechanism.
Fig. 7 is the structural representation of the utility model transverse moving mechanism.
Reference numeral comprises:
1-support, 11-leg, 2-worktable, 3-longitudinal moving mechanism
31-longitudinal rail 32-vertical slide 33-vertical screw mandrel 34-vertical motor
4-transverse moving mechanism, 41-cross slide way, 42-cross slide, 43-cross lead screw
44-cross motor, 5-feed mechanism, 51-vertical guide rail, 52-vertical sliding
53-down-feed screw, 54-motor vertical, 6-electrochemical corrosion device, 61-liquid-holding bucket
62-electrode 63-blow liquid pipe 7-probe 71-probe base
72-electromagnet, 73-extension spring, 8-main control unit, 81-display screen.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in detail.
Extremely shown in Figure 7 such as Fig. 1, the automatic resistance trimming device of a kind of galvanic corrosion formula strainometer of the present utility model, comprise support 1, be used for fixedly worktable 2 and the main control unit 8 of strainometer, described worktable 2 is installed on described support 1, described support 1 also is equipped with longitudinal moving mechanism 3, described longitudinal moving mechanism 3 is equipped with transverse moving mechanism 4, described transverse moving mechanism 4 is connected with feed mechanism 5, described feed mechanism 5 is provided with the electrochemical corrosion device 6 for the corrosion strainometer, described feed mechanism 5 also is provided with for the probe 7 that contacts with strainometer, described probe 7 is electrically connected with resistance detecting circuit, described longitudinal moving mechanism 3 by wire, transverse moving mechanism 4, feed mechanism 5, electrochemical corrosion device 6, probe 7 and resistance detecting circuit are electrically connected to fetch with main control unit 8 respectively and realize mutual co-ordination.The utility model carries out automatic resistance trimming by galvanic corrosion to electric resistance wire strain gauge.
The operator is fixed in electric resistance wire strain gauge on the worktable 2 first, and in the distance between the typing electric resistance wire strain gauge on the main control unit 8, controls respectively the distance that longitudinal moving mechanism 3 and transverse moving mechanism 4 move by this distance values.Also to preset in addition the qualified Standard resistance range of electric resistance wire strain gauge.
Described longitudinal moving mechanism 3 comprises longitudinal rail 31, vertical slide 32, vertical screw mandrel 33 and vertical motor 34, described longitudinal rail 31 is fixed in described support 1, described vertical slide 32 is connected in described longitudinal rail 31 slidably, described vertical screw mandrel 33 is bolted in described vertical slide 32, described vertical motor 34 is fixed in an end of described longitudinal rail 31, and the output shaft of described vertical motor 34 is connected with described vertical screw mandrel 33.Drive vertical screw mandrel 33 by the vertical motor 34 of main control unit 8 controls and rotate, slide at longitudinal rail 31 thereby adjust vertical slide 32.
The both sides of described worktable 2 are provided with longitudinal rail 31 and vertical slide 32, and transverse moving mechanism 4 is individually fixed on vertical slide 32 of worktable 2 both sides, make transverse moving mechanism 4 fixing more firm, and the distance that control is slided is more accurate.
Described transverse moving mechanism 4 comprises cross slide way 41, cross slide 42, cross lead screw 43 and cross motor 44, described cross slide way 41 is fixed in the top of described vertical slide 32, described cross slide 42 is connected in described cross slide way 41 slidably, described cross lead screw 43 is bolted in described cross slide 42, described cross motor 44 is fixed in an end of described cross slide way 41, and the output shaft of described cross motor 44 is connected with described cross lead screw 43.Because transverse moving mechanism 4 is arranged on the longitudinal moving mechanism 3, longitudinal moving mechanism 3 drives transverse moving mechanism 4 and vertically moves, transverse moving mechanism 4 control cross motors 44 drive cross lead screw 43 and rotate, and slide at cross slide way 41 thereby adjust cross slide 42.
Described feed mechanism 5 comprises vertical guide rail 51, vertical sliding 52, down-feed screw 53 and motor vertical 54, described vertical guide rail 51 is fixed in described cross slide 42, described vertical sliding 52 is connected in described vertical guide rail 51 slidably, described down-feed screw 53 is bolted in described vertical sliding 52, described motor vertical 54 is fixed in an end of described vertical guide rail 51, and the output shaft of described motor vertical 54 is connected with described down-feed screw 53.Because feed mechanism 5 is arranged on the transverse moving mechanism 4, so feed mechanism 5 can be realized respectively the movement of vertical and horizontal, drive in the situation of down-feed screws 53 at self motor vertical 54 in addition, vertical sliding 52 slides up and down at vertical guide rail 51.
Described electrochemical corrosion device 6 comprise be used to the liquid-holding bucket 61 that contains electrochemical corrosive liquid, be used for the electrode 62 of galvanic corrosion and be used for drying up corrosive liquid blow liquid pipe 63, described liquid-holding bucket 61 and electrode 62 are connected in respectively the fixed station of described feed mechanism 5, described electrode 62 is electrically connected with described main control unit 8, the described liquid pipe 63 that blows is connected with the air supply pipe of outside, and air supply pipe provides gases at high pressure to blowing liquid pipe 63.Electrochemical corrosion device 6 has been realized X on worktable 2 and the movement of Y-direction under the drive of respectively longitudinal moving mechanism 3 and transverse moving mechanism 4, under the drive of feed mechanism 5, further realized the movement of the Z direction on the worktable 2 in addition.By the co-ordination of said mechanism, electrochemical corrosion device 6 can carry out galvanic corrosion to electric resistance wire strain gauge one by one.Liquid-holding bucket 61 is when X and Y-direction aligning electric resistance wire strain gauge, feed mechanism 5 drives respectively liquid-holding bucket 61, electrode 62 and probe 7 are close to electric resistance wire strain gauge, near when the certain distance, liquid-holding bucket 61 drops in prior deployed electrochemical corrosive liquid at the wire grid place of electric resistance wire strain gauge, 8 pairs of electrodes 62 of main control unit (negative electrode) and probe 7 (anode) input direct-current electric current, according to electrolysis principle, oxidation reaction occurs in the wire grid surface, the wire grid metallic ion is under the function of current, in electrode 62 (negative electrode) reduction reaction occuring by chemical corrosion liquid separates out, thereby change the sectional area of wire grid, reach the purpose of resistance value correction.
The corrosion of strainometer and the detection of resistance value hocket.When detecting the resistance value of strainometer, stop first corrosion process, blow liquid pipe 63 and pass into pressurized air, blow off corrosive liquid.Then probe 7 is switched to ohmmeter, carry out resistance and accurately measure, so alternation is 3-4 time, finishes the resistance trimming of a slice strainometer.In order to realize simultaneously that in the process of resistance trimming the resistance value of electric resistance wire strain gauge is detected, probe 7 is connected with probe base 71, described probe base 71 is installed on the below of vertical guide rail 51 by rotating shaft, the back side of described vertical guide rail 51 is equipped with for the electromagnet 72 that repels probe base 71, described electromagnet 72 is electrically connected with described main control unit 8, is connected with extension spring 73 between the rear of described probe base 71 and the described vertical guide rail 51.Two probe 7 mutually insulateds, and be series in the resistance detecting circuit.Under the original state, electromagnet 72 is in off-position, probe base 71 is under the effect of extension spring 73, probe 7 is pressed down and contact with electric resistance wire strain gauge, this electric resistance wire strain gauge is carried out resistance measurement, when measuring and after the resistance correction finishes, electromagnet 72 electric repulsion probe base 71, probe base 71 is tilted upward from electric resistance wire strain gauge probe 7, carries out work in order to switch to next electric resistance wire strain gauge.
Described main control unit 8 is provided with the display screen 81 that shows the strainometer resistance, probe 7 detects the resistance of electric resistance wire strain gauge in real time, current resistance is in display screen 81 outputs, the resistance of electric resistance wire strain gauge is in the process of revising, resistance value can constantly change, main control unit 8 is according to the length of the resistance control etching time that detects, the variation of accurate controlling resistance formula strainometer wire grid metal surface, thereby the variation of accurate controlling resistance.
The contact resistance that described probe 7 is measured is less than 0.001 ohm, the Measurement accuracy resistance value.
The bottom of described support 1 is provided with leg 11.
Above content only is preferred embodiment of the present utility model, for those of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, this description should not be construed as restriction of the present utility model.
Claims (10)
1. automatic resistance trimming device of galvanic corrosion formula strainometer, comprise support, be used for fixedly worktable and the main control unit of strainometer, described worktable is installed on described support, it is characterized in that: described support also is equipped with longitudinal moving mechanism, described longitudinal moving mechanism is equipped with transverse moving mechanism, described transverse moving mechanism is connected with feed mechanism, described feed mechanism is provided with the electrochemical corrosion device for the corrosion strainometer, described feed mechanism also is provided with the probe that contacts for strainometer, described probe is electrically connected with resistance detecting circuit by wire, described longitudinal moving mechanism, transverse moving mechanism, feed mechanism, electrochemical corrosion device, probe and resistance detecting circuit are electrically connected with main control unit respectively.
2. the automatic resistance trimming device of galvanic corrosion formula strainometer according to claim 1, it is characterized in that: described electrochemical corrosion device comprise be used to the liquid-holding bucket that contains electrochemical corrosive liquid, be used for the electrode of galvanic corrosion and be used for drying up electrochemical corrosive liquid blow the liquid pipe, described liquid-holding bucket, electrode and blow the fixed station that the liquid pipe is installed in respectively described feed mechanism, described electrode is electrically connected with described main control unit, and the described liquid pipe that blows is connected with the air supply pipe of outside.
3. the automatic resistance trimming device of galvanic corrosion formula strainometer according to claim 1, it is characterized in that: described longitudinal moving mechanism comprises longitudinal rail, vertical slide, vertical screw mandrel and vertical motor, described longitudinal rail is fixed in described support, described vertical slide is connected in described longitudinal rail slidably, described vertical screw mandrel is bolted in described vertical slide, described vertical motor is fixed in an end of described longitudinal rail, and the output shaft of described vertical motor is connected with described vertical screw mandrel.
4. the automatic resistance trimming device of galvanic corrosion formula strainometer according to claim 3 is characterized in that: the both sides of described worktable are provided with longitudinal rail and vertical slide.
5. the automatic resistance trimming device of galvanic corrosion formula strainometer according to claim 4, it is characterized in that: described transverse moving mechanism comprises cross slide way, cross slide, cross lead screw and cross motor, described cross slide way is fixed in the top of described vertical slide, described cross slide is connected in described cross slide way slidably, described cross lead screw is bolted in described cross slide, described cross motor is fixed in an end of described cross slide way, and the output shaft of described cross motor is connected with described cross lead screw.
6. the automatic resistance trimming device of galvanic corrosion formula strainometer according to claim 5, it is characterized in that: described feed mechanism comprises vertical guide rail, vertical sliding, down-feed screw and motor vertical, described vertical guide rail is fixed in described cross slide, described vertical sliding is connected in described vertical guide rail slidably, described down-feed screw is bolted in described vertical sliding, described motor vertical is fixed in an end of described vertical guide rail, and the output shaft of described motor vertical is connected with described down-feed screw.
7. the automatic resistance trimming device of galvanic corrosion formula strainometer according to claim 6, it is characterized in that: described probe is connected with probe base, described probe base is installed on the below of vertical guide rail by the rotating shaft of vertical guide rail, the back side of described vertical guide rail is equipped with for the electromagnet that repels probe base, described electromagnet is electrically connected with described main control unit, is connected with extension spring between the rear of described probe base and the described vertical guide rail.
8. the automatic resistance trimming device of galvanic corrosion formula strainometer according to claim 7, it is characterized in that: the contact resistance of described probe measurement is less than 0.001 ohm.
9. the automatic resistance trimming device of galvanic corrosion formula strainometer according to claim 1 is characterized in that: described main control unit is provided with the display screen that shows the strainometer resistance.
10. the automatic resistance trimming device of galvanic corrosion formula strainometer according to claim 1, it is characterized in that: the bottom of described support is provided with leg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220446765.4U CN202794338U (en) | 2012-09-04 | 2012-09-04 | Electrochemical corrosion type strainometer automatic resistance-adjustment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220446765.4U CN202794338U (en) | 2012-09-04 | 2012-09-04 | Electrochemical corrosion type strainometer automatic resistance-adjustment device |
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| CN202794338U true CN202794338U (en) | 2013-03-13 |
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| CN201220446765.4U Expired - Lifetime CN202794338U (en) | 2012-09-04 | 2012-09-04 | Electrochemical corrosion type strainometer automatic resistance-adjustment device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103668420A (en) * | 2013-12-16 | 2014-03-26 | 中航电测仪器股份有限公司 | Automatic resistance adjusting device for resistance strain gauge and resistance adjusting method |
| CN104191333A (en) * | 2014-08-22 | 2014-12-10 | 深圳市牧己实业有限公司 | Resistance adjusting machine for foil strain gauge |
| CN104714474A (en) * | 2015-03-11 | 2015-06-17 | 山东理工大学 | Automatic resistance adjusting device for resistance strain gage |
| CN105005325A (en) * | 2015-06-16 | 2015-10-28 | 王晓冉 | Method for automatically adjusting resistance of foil resistance strain gage and automatic resistance-adjusting device |
| CN105372499A (en) * | 2015-11-25 | 2016-03-02 | 亿和精密工业（苏州）有限公司 | Micro-resistance measurement equipment and measurement method |
| WO2016183760A1 (en) * | 2015-05-18 | 2016-11-24 | 北京大学 | Touch effect-based device and method for adjusting electrical impedance |
| CN109722378A (en) * | 2018-12-20 | 2019-05-07 | 安徽中青检验检测有限公司 | A kind of food bacterial content detection device |
| CN110468443A (en) * | 2019-09-23 | 2019-11-19 | 中航电测仪器股份有限公司 | A kind of resistance trimming head and the electrochemistry resistance trimming device and method using the resistance trimming head |
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2012
- 2012-09-04 CN CN201220446765.4U patent/CN202794338U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103668420A (en) * | 2013-12-16 | 2014-03-26 | 中航电测仪器股份有限公司 | Automatic resistance adjusting device for resistance strain gauge and resistance adjusting method |
| CN103668420B (en) * | 2013-12-16 | 2016-08-17 | 中航电测仪器股份有限公司 | A kind of strain ga(u)ge automatization resistance trimming device and resistance trimming method |
| CN104191333A (en) * | 2014-08-22 | 2014-12-10 | 深圳市牧己实业有限公司 | Resistance adjusting machine for foil strain gauge |
| CN104714474A (en) * | 2015-03-11 | 2015-06-17 | 山东理工大学 | Automatic resistance adjusting device for resistance strain gage |
| WO2016183760A1 (en) * | 2015-05-18 | 2016-11-24 | 北京大学 | Touch effect-based device and method for adjusting electrical impedance |
| CN105005325A (en) * | 2015-06-16 | 2015-10-28 | 王晓冉 | Method for automatically adjusting resistance of foil resistance strain gage and automatic resistance-adjusting device |
| CN105005325B (en) * | 2015-06-16 | 2018-02-23 | 王晓冉 | The method of automatic resistance trimming and automatic resistance trimming equipment are carried out to foil resistance strain gauge |
| CN105372499A (en) * | 2015-11-25 | 2016-03-02 | 亿和精密工业（苏州）有限公司 | Micro-resistance measurement equipment and measurement method |
| CN105372499B (en) * | 2015-11-25 | 2018-05-04 | 亿和精密工业（苏州）有限公司 | A kind of microresistivity survey equipment and measuring method |
| CN109722378A (en) * | 2018-12-20 | 2019-05-07 | 安徽中青检验检测有限公司 | A kind of food bacterial content detection device |
| CN110468443A (en) * | 2019-09-23 | 2019-11-19 | 中航电测仪器股份有限公司 | A kind of resistance trimming head and the electrochemistry resistance trimming device and method using the resistance trimming head |
| CN110468443B (en) * | 2019-09-23 | 2022-02-22 | 中航电测仪器股份有限公司 | Resistance trimmer and electrochemical resistance trimming device and method using same |
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Address after: 523000 Guangdong city of Dongguan province Sheng Machong Town Industrial Park of Guangdong hualanhai electric Polytron Technologies Inc Patentee after: GUANGDONG SOUTH CHINA SEA ELECTRONIC MEASURING TECHNOLOGY Co.,Ltd. Address before: 523000 Guangdong city of Dongguan province Sheng Machong Town Industrial Park Dongguan southchinasea Electronics Co. Ltd Patentee before: Dongguan South China Sea Electronic Co.,Ltd. |
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Granted publication date: 20130313 |