CN102914717B - Test bed for electrostatic discharge testing - Google Patents
Test bed for electrostatic discharge testing Download PDFInfo
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- CN102914717B CN102914717B CN201210452371.4A CN201210452371A CN102914717B CN 102914717 B CN102914717 B CN 102914717B CN 201210452371 A CN201210452371 A CN 201210452371A CN 102914717 B CN102914717 B CN 102914717B
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- leading screw
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- static gun
- electrostatic
- electrostatic discharge
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Abstract
Provided is a test bed for accurately measuring an air discharge distance during electronic static discharge (ESD) of an electromagnetic compatibility test for an automobile part system. The test bed for electrostatic discharge testing comprises a control cabinet and a working table. The control cabinet comprises an industrial control computer, a touch display and a stepping motor controller, wherein the industrial control computer comprises an input/output (IO) control card. The working table is electrically connected with the control cabinet. A longitudinal adjusting device, a horizontal adjusting device installed on the longitudinal adjusting device and a height adjusting device connected to the horizontal adjusting device are installed on the working table. The test bed has the advantages that the air electrostatic discharge distance in the electrostatic discharge test can be accurately measured, the displacement can be read accurately, and the displacement precision is 0.1mm; and the moving speed of an electrostatic discharge device is controlled through a stepping motor, the feeding speed can be accurately controlled, and the national standard requirements of 5mm/s can be met.
Description
Technical field
The invention belongs to proving installation, particularly relate to a kind of in auto parts and components EMC test of systems ESD static discharge, accurately can control speed of feed, and carry out the test bed of Measurement accuracy atmospherical discharges distance.
Background technology
Along with the development of auto industry, on automobile, electron device increases gradually, and different electrical appliances can produce electromagnetic interference (EMI) in use, and this interference is classified as EMC electromagnetic interference (EMI).Static discharge is also one in EMC electromagnetic interference (EMI), and static discharge has very serious destructiveness, electrical appliance can be burnt time serious, thus causes automobile not use.
As-Is is national standard ISO 10605 and GB/T 19951 " the electricity harassing and wrecking test method that road vehicle static discharge produces ", and in standard, regulation ESD is divided into two kinds of tests, and one is contact electric discharge, and another kind is atmospherical discharges (contactless electric discharge).Wherein there is a test event to be according to certain test speed close to test specimen in air type discharge test, and test out the maximum arcing distance between static discharge device and measured piece accurately.Current most methods adopts artificial hand-held static discharge device to move to measure, and the bad grasp of such translational speed, the judgement of electric discharge distance also lacks accuracy and science, and whole test process is still far from perfect.And maximum arcing distance of this test at present can only be by virtue of experience and common ruler measurement.
Summary of the invention
The present invention provides a kind of and carries out the test bed of Measurement accuracy atmospherical discharges distance to auto parts and components system ESD static discharge for solving in prior art the technical matters that exists.
The technical scheme that the present invention takes for the technical matters existed in solution prior art is: electrostatic discharge testing testing table of the present invention, comprise: switch board, worktable, switch board comprises: the industrial control computer containing IO control card, touching-type monitor and controllor for step-by-step motor, worktable and switch board are electrically connected, its worktable is provided with longitudinal adjustment apparatus, the lateral adjustment device be connected on longitudinal adjustment apparatus, the arrangement for adjusting height be connected in lateral adjustment device
Longitudinal adjustment apparatus comprises: one end is connected with the shaft coupling of stepper motor and the other end is supported on the vertical shift leading screw on vertical end plate, the vertical slide run through wherein is coordinated with vertical shift leading screw, vertical slide is supported on two parallel vertical brace summers, vertical shift leading screw is positioned in the middle of two vertical brace summers, a plate is connected with above vertical slide, lateral adjustment device is connected to above it, a contiguous block is connected with below web joint, contiguous block is connected to displacement transducer, vertical slide moves along vertical brace summer under vertical shift leading screw drives, one end of vertical brace summer is connected on coupler casing, the other end is connected on vertical end plate, displacement transducer is connected with switch board by data line,
Lateral adjustment device comprises: plane on the web joint being connected to longitudinal adjustment apparatus and parallel two horizontal support beams, horizontal support beam one end is connected on coupler casing, the other end is connected on horizontal end plate, horizontal support beam length direction is spatially vertical with vertical brace summer length direction, the traversing leading screw that one end is connected with the shaft coupling of stepper motor, supported by horizontal support beam and coordinate the sideslip seat run through wherein with traversing leading screw, be connected to the horizontal end plate of the traversing leading screw other end, be connected to the lateral frame in vertical configuration above sideslip seat vertically upward, sideslip seat moves along horizontal support beam under traversing leading screw drives, traversing leading screw is positioned in the middle of two horizontal support beams,
Arrangement for adjusting height comprises: be connected to the height stand beam that on the short transverse plate of lateral adjustment device lateral frame two are parallel, be connected to the upper lower slider of also movement on height stand beam, what upper end was connected by the shaft coupling of stepper motor moves up and down leading screw, move up and down leading screw to coordinate with upper lower slider and run through wherein, with height stand beam with move up and down the bottom plate that leading screw lower end is connected, upper lower slider is connected with the static gun support that two limits are vertical, be connected horizontally on the static gun on static gun support, be connected to the electromagnetic switch of static gun side face, be contained in the electrostatic emission switch that static gun shell is connected with electromagnetic switch and static gun, electrostatic emission switch controls static gun, the electrostatic transmitting terminal of static gun aims at test specimen center, moving up and down leading screw is positioned in the middle of two height stand beams, the upper end of height stand beam is connected on coupler casing, lower end is connected with bottom plate, upper lower slider moves along height stand beam under the drive moving up and down leading screw,
Vertical brace summer side at longitudinal adjustment apparatus on worktable is also provided with photoelectric sensor, and photoelectric sensor tests zero point for demarcating;
Regulate static gun transmitting terminal position by switch board control lateral adjustment device and arrangement for adjusting height, switch board control longitudinal adjustment apparatus tests the maximum electrostatic arcing distance between static gun and test specimen.
Described vertical shift leading screw and vertical slide, traversing leading screw and sideslip seat, move up and down coordinating to adopt and being threaded of leading screw and upper lower slider.
The advantage that the present invention has and good effect are:
1, can the distance of air electrostatic in Measurement accuracy electrostatic discharge testing, accurately can read displacement, displacement precision is 0.1mm.
2, the translational speed of static discharge device is by step motor control, accurately can control speed of feed, the requirement of the 5mm/s that can be up to state standards.
Accompanying drawing explanation
Fig. 1 is electrostatic discharge testing testing table front view of the present invention;
Fig. 2 is electrostatic discharge testing testing table vertical view of the present invention;
Fig. 3 is electrostatic discharge testing testing table partial perspective view of the present invention;
Fig. 4 is the partial enlarged drawing of Fig. 3;
Fig. 5 is the backsight partial perspective view of electrostatic discharge testing testing table of the present invention;
Fig. 6 is the A portion enlarged drawing of Fig. 5;
Fig. 7 is electrostatic discharge testing used switch test-bed electric principle figure of the present invention;
Fig. 8 is touching-type monitor button figure of the present invention.
Critical piece symbol description in accompanying drawing:
1: switch board 2: worktable 3: touching-type monitor
4: industrial control computer 5: controllor for step-by-step motor 6: longitudinal adjustment apparatus
7: lateral adjustment device 8: arrangement for adjusting height 9: static gun
10: data line 11: displacement transducer 12: photoelectric sensor
13: electromagnetic switch 14: test specimen 15: power switch
16: stepper motor 17: electrostatic emission switch 18: shaft coupling
19: vertical shift leading screw 20: vertical slide 21: horizontal end plate
22: vertical brace summer 23: vertical end plate 24: traversing leading screw
25: sideslip seat 26: horizontal support beam 27: lateral frame
28: move up and down leading screw 29: bottom plate 30: static gun support
31: upper lower slider 32: height stand beam 33: transmitting terminal
34: coupler casing 35:IO control card 36: display lamp
37: web joint 38: contiguous block 39: sensor tappet
40: electromagnet.
Embodiment
Referring to drawings and Examples, the present invention will be described in detail:
Parts identical in accompanying drawing of the present invention employ identical symbol, and as stepper motor all employs symbol 16, shaft coupling employs 18, and coupler casing employs 34.
Electrostatic discharge testing testing table of the present invention, as shown in Figure 1 and Figure 2, Fig. 1 is electrostatic discharge testing testing table front view of the present invention; Fig. 2 is electrostatic discharge testing testing table vertical view of the present invention.
Electrostatic discharge testing testing table of the present invention is made up of switch board 1, worktable 2, and worktable and switch board are electrically connected.Switch board comprises: the industrial control computer 4 containing IO control card 35, touching-type monitor 3 and controllor for step-by-step motor 5.Controllor for step-by-step motor in switch board controls the running of each stepper motor.
Worktable is provided with longitudinal adjustment apparatus 6, the lateral adjustment device 7 be connected on longitudinal adjustment apparatus, the arrangement for adjusting height 8 be connected in lateral adjustment device.
As shown in Figure 2, switch board is provided with power switch 15 and display lamp 36, worktable opposite is placed with test specimen 14.Test specimen needs in automotive system to carry out the auto parts and components that static discharge measures atmospherical discharges distance.
Fig. 3 is electrostatic discharge testing testing table partial perspective view of the present invention; Fig. 4 is the partial enlarged drawing of Fig. 3; Fig. 5 is the backsight partial perspective view of electrostatic discharge testing testing table of the present invention; Fig. 6 is the A portion enlarged drawing of Fig. 5.
As shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, longitudinal adjustment apparatus 6 is made up of the stepper motor 16 of one end, shaft coupling 18, coupler casing 34, vertical shift leading screw 19, vertical slide 20, vertical brace summer 22, vertical end plate 23, web joint 37, contiguous block 38, sensor tappet 39 and displacement transducer 11.
As shown in Figure 3, the shaft coupling 18 of stepper motor 16 is connected to one end of vertical shift leading screw 19, and the vertical shift leading screw other end is supported on vertical end plate 23, vertical shift leading screw runs through and has vertical slide 20, and vertical slide can be seen in Fig. 5, Fig. 6.Vertical slide and vertical shift leading screw are connected, and indulge slide simultaneously and be supported on two parallel vertical brace summers 22, vertical shift leading screw is positioned in the middle of two vertical brace summers.
As shown in Figure 5, Figure 6, vertical slide 20 is connected with a plate 37 above, lateral adjustment device 7 is connected to above web joint, a contiguous block 38 is connected with below web joint, contiguous block is connected with sensor tappet 39, sensor tappet and displacement transducer 11 are that one is connected, and as shown in Figure 2, displacement transducer is connected with switch board 1 by data line 10.
Vertical slide moves along vertical brace summer under vertical shift leading screw drives, and one end of vertical brace summer is connected on coupler casing 34, and the other end is connected on vertical end plate 23.
The coordinating to adopt of vertical shift leading screw and vertical slide is threaded.On web joint, plane is connected to lateral adjustment device 7.
As shown in Fig. 4, Fig. 5, Fig. 6, lateral adjustment device 7 is made up of the stepper motor 16 of one end, shaft coupling 18, coupler casing 34, traversing leading screw 24, sideslip seat 25, horizontal support beam 26, horizontal end plate 21, lateral frame 27.
The upper plane of the web joint indulged above slide at longitudinal adjustment apparatus is connected to two parallel horizontal support beams 26, and horizontal support beam length direction is spatially perpendicular to vertical brace summer length direction.
The shaft coupling 18 of the stepper motor 16 of lateral adjustment device is connected to one end of traversing leading screw 24, the traversing leading screw other end is supported on horizontal end plate 21, traversing leading screw runs through and has sideslip seat 25, sideslip seat and traversing leading screw are connected, simultaneously sideslip seat supports is on two parallel horizontal support beams 26, and traversing leading screw is positioned in the middle of two parallel horizontal support beams.
Sideslip seat moves along horizontal support beam under traversing leading screw drives, and one end of horizontal support beam is connected on coupler casing 34, and the other end is connected on horizontal end plate 21.
On sideslip seat, be connected with lateral frame 27 vertically upward, lateral frame is made up of two vertical plates, and its bottom panel is connected to above sideslip seat, and the right angle side plate of short transverse is connected to arrangement for adjusting height 8.Sideslip seat moves along horizontal support beam under traversing leading screw drives.
The coordinating to adopt of traversing leading screw and sideslip seat is threaded.
As shown in Fig. 3, Fig. 4, Fig. 5, arrangement for adjusting height 8 by the height stand beam 32 be connected on lateral frame, upper lower slider 31, move up and down leading screw 28, stepper motor 16, shaft coupling 18, bottom plate 29, static gun support 30, static gun 9, electromagnetic switch 13, electromagnet 40, electrostatic emission switch 17 form.
The height stand beam 32 of the above-below direction that two of arrangement for adjusting height are parallel is connected on the short transverse right angle side plate of lateral adjustment device lateral frame, the upper end of height stand beam is connected with the coupler casing 34 of stepper motor 16, and lower end is connected on bottom plate 29.
Height stand beam is connected with lower slider 31, upper lower slider to be supported on height stand beam and to move up and down, be provided with in the middle of two height stand beams and move up and down leading screw 28, the shaft coupling 18 of the upper end and stepper motor 16 that move up and down leading screw is connected, and lower end is connected on bottom plate.
Move up and down leading screw coordinate with upper lower slider and run through wherein, upper lower slider moves along height stand beam under the drive moving up and down leading screw.Move up and down coordinating to adopt and being threaded of leading screw and upper lower slider.
The outerplanar of upper lower slider is connected with the vertical static gun support 30 in two limits, on static gun support, horizontality is connected to static gun 9, the electrostatic transmitting terminal 33 of static gun aims at the center of test specimen 14, in static gun side face, electromagnetic switch 13 is installed, an electromagnet 40 is equipped with in the side of electromagnetic switch, static gun shell is equipped with electrostatic emission switch 17, electrostatic emission switch controls static gun, electromagnet is controlled by electromagnetic switch, electrostatic emission switch is clicked with certain frequency, carry out adhesive or disconnect action, making static gun constantly be in electrostatic emission state.
In addition, the vertical brace summer side at longitudinal adjustment apparatus on worktable is also provided with photoelectric sensor 12, and it is optoelectronic switch, and when there being object to enter its test specification, this switch can produce a switching signal, and this signal is as initial point signal.Photoelectric sensor tests zero point for demarcating.After pressing clear point switch, stepper motor can fast return zero point.
Regulate static gun transmitting terminal position by switch board control lateral adjustment device and arrangement for adjusting height, switch board control longitudinal adjustment apparatus tests the maximum electrostatic arcing distance between static gun and test specimen.
Fig. 7 is electrostatic discharge testing used switch test-bed electric principle figure of the present invention.As shown in Figure 7, by an industrial control computer as control center, in industrial control computer, be provided with IO control card 35, realize real-time communication by IO control card, and it is controlled.
IO control card controls 3 controllor for step-by-step motor 5 respectively, simultaneously 3 controllor for step-by-step motor control the stepper motor 16 of longitudinal adjustment apparatus 6, lateral adjustment device 7, arrangement for adjusting height 8 respectively, stepper motor commands corresponding stepper motor to carry out different actions after receiving industrial control computer signal, realizes the adjustment action of transverse direction, longitudinal direction, short transverse.Wherein horizontal is regulate static gun transmitting terminal position with the adjustment of short transverse, longitudinally regulates and is used to test the maximum electrostatic arcing distance between static gun and test specimen.
When the vertical slide 20 of longitudinal adjustment apparatus 6 moves to photoelectric sensor 12 induction zone, photoelectric sensor induction sends signal, signal transmission is to IO control card, IO control card controls electromagnetic switch 13, electrostatic emission switch 17 and static gun 9 and carries out electrostatic transmitting, and electrostatic is from the transmitting terminal 33 directive test specimen 14 of static gun.
Between test static gun and test specimen, aerial maximum electrostatic arcing distance is gone out by the displacement sensor on longitudinal adjustment apparatus.Longitudinal adjustment apparatus is connected with a displacement transducer 11, the displacement of longitudinal adjustment apparatus feeds back on IO control card and touching-type monitor by displacement transducer, and tester can read the ultimate range producing static discharge from touching-type monitor.
Fig. 8 is touching-type monitor button figure of the present invention.As shown in the figure, indicator knob has lateral attitude to adjust button, vertical position adjustment button and lengthwise position adjustment button, and namely vertical position adjustment is that height and position regulates.
Lateral attitude adjustment button comprises: traverse feed, laterally retrogressing.Vertical position adjustment button comprises: vertically rise, vertically decline.Lengthwise position adjustment button comprises: length feed, longitudinally retrogressing, fly back, electromagnet frequency setting, displacement, also have exit button in testing table.
Below the test job process of electrostatic discharge testing testing table of the present invention is described:
1, front position adjustment is tested: utilize the button of the adjustment of the lateral attitude of touching-type monitor and vertical position adjustment (i.e. arrangement for adjusting height) to regulate static gun transmitting terminal position, static gun transmitting terminal is made to aim at test specimen center, and static gun and test specimen are in the distance range that standard specifies, now this static gun transmitting terminal position are decided to be photoelectric sensor and demarcate test zero point.
2, test maximum electrostatic arcing distance: press length feed button by touching-type monitor, the stepper motor now longitudinally regulated drives vertical shift leading screw, vertical slide, web joint above vertical slide, horizontal support beam on web joint, sideslip seat on horizontal support beam, lateral frame, height stand beam, upper lower slider, the static gun support be connected with upper lower slider and static gun vertically move, static gun is longitudinal close to test specimen with the speed of 5mm/s, while static gun feeding, electromagnet can click electrostatic emission switch with the frequency of 1 time/second, static gun is made constantly to launch electrostatic signal, be in electrostatic emission state.With above-mentioned operating mode constantly close to test specimen, until produce first time electrostatic spark between static gun and test specimen, and hear the sound of " whip ", now unclamp length feed button, then shift value is now read from touching-type monitor, this numerical value is the maximum electrostatic electric discharge ESD distance of test specimen, thus test job completes.
The range of application of electrostatic discharge testing testing table of the present invention: this test bed ESD electrostatic discharge testing being applied to motorcar interior controller class and electric type product, as ECU(engine control computer), TCU(AMT wheel box computer for controlling), BCM(car body controller), 31 controllers (possess flashing relay, rain brush controls and course changing control function), radio, combination instrument, air-conditioner controller etc. ESD electrostatic discharge testing.
Claims (2)
1. an electrostatic discharge testing testing table, comprise: switch board, worktable, switch board comprises: the industrial control computer containing IO control card, touching-type monitor and controllor for step-by-step motor, worktable and switch board are electrically connected, it is characterized in that worktable being provided with longitudinal adjustment apparatus (6), the lateral adjustment device (7) be connected on longitudinal adjustment apparatus, the arrangement for adjusting height (8) be connected in lateral adjustment device
Longitudinal adjustment apparatus comprises: one end is connected with first shaft coupling (18) of the first stepper motor (16) and the other end is supported on the vertical shift leading screw (19) on vertical end plate (23), the vertical slide (20) run through wherein is coordinated with vertical shift leading screw, vertical slide is supported on two parallel vertical brace summers (22), vertical shift leading screw is positioned in the middle of two vertical brace summers, a plate (37) is connected with above vertical slide, lateral adjustment device is connected to above it, a contiguous block (38) is connected with below web joint, contiguous block is connected to displacement transducer (11), vertical slide moves along vertical brace summer under vertical shift leading screw drives, one end of vertical brace summer is connected on the first coupler casing (34), the other end is connected on vertical end plate, displacement transducer is connected with switch board by data line (10),
Lateral adjustment device comprises: plane on the web joint being connected to longitudinal adjustment apparatus and parallel two horizontal support beams (26), horizontal support beam one end is connected on the second coupler casing, the other end is connected on horizontal end plate, horizontal support beam length direction is spatially vertical with vertical brace summer length direction, the traversing leading screw (24) that one end is connected with the second shaft coupling of the second stepper motor, supported by horizontal support beam and coordinate the sideslip seat (25) run through wherein with traversing leading screw, be connected to the horizontal end plate (21) of the traversing leading screw other end, be connected to the lateral frame (27) in vertical configuration above sideslip seat vertically upward, sideslip seat moves along horizontal support beam under traversing leading screw drives, traversing leading screw is positioned in the middle of two horizontal support beams,
Arrangement for adjusting height comprises: be connected to the height stand beam (32) that on the short transverse plate of lateral adjustment device lateral frame two are parallel, be connected to the upper lower slider (31) of also movement on height stand beam, what upper end was connected by the 3rd shaft coupling of the 3rd stepper motor moves up and down leading screw (28), move up and down leading screw to coordinate with upper lower slider and run through wherein, with height stand beam with move up and down the bottom plate (29) that leading screw lower end is connected, upper lower slider is connected with the static gun support (30) that two limits are vertical, be connected horizontally on the static gun (9) on static gun support, be connected to the electromagnetic switch (13) of static gun side face, be contained in the electrostatic emission switch (17) that static gun shell is connected with electromagnetic switch and static gun, electrostatic emission switch controls static gun, the electrostatic transmitting terminal (33) of static gun aims at test specimen (14) center, moving up and down leading screw is positioned in the middle of two height stand beams, the upper end of height stand beam is connected on the 3rd coupler casing, lower end is connected with bottom plate, upper lower slider moves along height stand beam under the drive moving up and down leading screw,
Vertical brace summer side at longitudinal adjustment apparatus on worktable is also provided with photoelectric sensor (12), and photoelectric sensor tests zero point for demarcating;
Regulate static gun transmitting terminal position by switch board control lateral adjustment device and arrangement for adjusting height, switch board control longitudinal adjustment apparatus tests the maximum electrostatic arcing distance between static gun and test specimen.
2. electrostatic discharge testing testing table according to claim 1, is characterized in that vertical shift leading screw and vertical slide, traversing leading screw and sideslip seat, moves up and down coordinating to adopt and being threaded of leading screw and upper lower slider.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210452371.4A CN102914717B (en) | 2012-11-13 | 2012-11-13 | Test bed for electrostatic discharge testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210452371.4A CN102914717B (en) | 2012-11-13 | 2012-11-13 | Test bed for electrostatic discharge testing |
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| CN102914717A CN102914717A (en) | 2013-02-06 |
| CN102914717B true CN102914717B (en) | 2015-07-22 |
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| CN201210452371.4A Expired - Fee Related CN102914717B (en) | 2012-11-13 | 2012-11-13 | Test bed for electrostatic discharge testing |
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| CN106526366A (en) * | 2016-10-31 | 2017-03-22 | 京东方科技集团股份有限公司 | ESD (electro-static discharge) test control device |
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| CN108535567A (en) * | 2018-04-17 | 2018-09-14 | 京东方科技集团股份有限公司 | A kind of Characterization of Air Electrostatic Discharge test device and test method |
| CN108398625A (en) * | 2018-05-25 | 2018-08-14 | 扬州虹扬科技发展有限公司 | A kind of semiconductor electrostatic test device |
| CN108519534A (en) * | 2018-05-30 | 2018-09-11 | 南昌华勤电子科技有限公司 | Electrostatic discharge testing system |
| CN113341250A (en) * | 2021-06-02 | 2021-09-03 | 嘉兴威凯检测技术有限公司 | Electrostatic discharge immunity testing device |
| CN113484647A (en) * | 2021-07-22 | 2021-10-08 | 翌胜电子(苏州)有限公司 | ESD (electro-static discharge) testing device and testing method for power adapter |
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| EP0586182A2 (en) * | 1992-09-04 | 1994-03-09 | MILLER, John S. Sr. | Radial planar current detection device having an extended frequency range of response |
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| CN102914717A (en) | 2013-02-06 |
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Effective date of registration: 20151231 Address after: 130011 Changchun Province, West New Economic and Technological Development Zone, Dongfeng Street, No. 2259, No. Patentee after: China FAW Group Corporation Address before: 300380 No. 578 Fu Jing Road, Xiqing District, Tianjin Patentee before: Tianjin Faw Xiali Automobile Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 Termination date: 20161113 |