CN109669091B - Capacitive touch screen detection mechanism - Google Patents
Capacitive touch screen detection mechanism Download PDFInfo
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- CN109669091B CN109669091B CN201910143883.4A CN201910143883A CN109669091B CN 109669091 B CN109669091 B CN 109669091B CN 201910143883 A CN201910143883 A CN 201910143883A CN 109669091 B CN109669091 B CN 109669091B
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- detection
- touch screen
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- slide rail
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/01—Subjecting similar articles in turn to test, e.g. "go/no-go" tests in mass production; Testing objects at points as they pass through a testing station
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
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- General Physics & Mathematics (AREA)
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Abstract
The invention relates to a capacitive touch screen detection mechanism, which comprises a rack, wherein a power distribution control box is arranged in the rack, a feeding slide rail is arranged above the rack and is installed on the rack through a feeding slide rail installation plate, a tray matched with the feeding slide rail is arranged on the feeding slide rail, a capacitive touch screen is placed on the tray, a bracket is arranged in the middle of the rack, a detection mechanism is installed on the bracket, the detection mechanism comprises a movable device and a detection device which are connected with each other, the detection device is matched with the capacitive touch screen, the movable device and the detection device are both connected to the power distribution control box, and the power distribution control box is communicated with an operation touch screen arranged on the rack; the invention aims to provide a capacitive touch screen detection mechanism which is characterized in that a feeding slide rail and a tray are fed below the detection mechanism for detection, so that the conditions of artificial scratches and dirt are reduced, the increase of reject ratio is avoided, meanwhile, the alignment is accurate, and the probability of product misjudgment is reduced.
Description
Original application No.: 2016105740872
The original case applicant: dongguan school of science and technology
Application date of the original case: 2016 (7 months) and 20 days
The original application name: an automatic testing machine for a capacitive touch screen.
Technical Field
The invention relates to the field of production and processing of capacitive touch screens, in particular to a capacitive touch screen detection mechanism.
Background
With the development of the electronic industry, the touch screen has been applied to various electronic devices, and particularly with the rapid development of smart phones, the touch screen has also been rapidly developed, and numerous manufacturers actively invest in research, development and production. However, because the production process of the touch screen is quite complex, the capacitive touch screens produced by most enterprises have yield problems and process deviations, and some touch screens can be damaged due to later-stage factors, such as scratches of the touch screens and damages of flexible circuit boards, therefore, as a necessary link for quality control, perfecting the test means of the touch screens also becomes a key for improving the efficiency and the product quality of the enterprises. The traditional touch screen testing method generally adopts a manual operation method, the touch screen is manually placed into a testing tool for testing operation, the method is long in time consumption, manual scratching, pollution, dirt and the like are easy to occur due to the fact that the touch screen needs to be manually taken and placed, the reject ratio is increased, and the misjudgment rate of products is increased due to the fact that the placement position is changed along with the increase of fatigue of workers.
Disclosure of Invention
The invention aims to provide a capacitive touch screen detection mechanism which is characterized in that a feeding slide rail and a tray are fed below the detection mechanism for detection, so that the conditions of artificial scratches and dirt are reduced, the increase of reject ratio is avoided, meanwhile, the alignment is accurate, and the probability of product misjudgment is reduced.
In order to achieve the above purpose, the invention adopts the technical scheme that: a capacitive touch screen detection mechanism comprises a frame (1), a power distribution control box (2) is arranged in the frame (1), a feeding slide rail (11) is arranged above the frame (1), and is arranged on the frame (1) through a feeding slide rail mounting plate (14), a tray (17) matched with the feeding slide rail (11) is arranged on the feeding slide rail, a capacitive touch screen (15) is arranged on the tray (17), a bracket (6) is arranged in the middle of the frame (1), the bracket (6) is provided with a detection mechanism (4), the detection mechanism (4) comprises a movable device and a detection device (33) which are connected with each other, the detection device is matched with the capacitive touch screen (15), the movable device and the detection device (33) are both connected to the power distribution control box (2), and the power distribution control box (2) is communicated with an operation touch screen (5) arranged on the frame (1).
Furthermore, the right end of the sliding rail (11) is also matched with a pushing plate (3) matched with the tray (17), and the right side of the pushing plate (3) is provided with a pushing handle (7).
Furthermore, the rear side of the left end of the feeding sliding rail (11) is provided with an intercepting seat (12), and the intercepting seat (12) is provided with an intercepting column (13) matched with the tray (17).
Furthermore, the movable device comprises a left movable device and a right movable device which are arranged on the frame (1), wherein the left movable device and the right movable device are provided with a front movable device and a rear movable device, the front movable device and the rear movable device are provided with an up-down movable device, and the detection device (33) is arranged below the up-down movable device.
Further, the movable device about including setting up first installation piece (22) of controlling the trend on support (6), first installation piece in be provided with first transmission lead screw, and first transmission lead screw pass through synchronizing wheel and first installation piece (22) below about movable motor (21) be connected, through the first transmission piece that cup joints on it with first installation piece (22) top set up about movable seat (23) be connected, around the movable device set up about on movable seat (23), about movable motor (21) be connected to distribution control box (2).
Further, the front and back movable device including set up second installation piece (25) and front and back movable motor (24) on about movable seat (23), front and back movable motor (24) pass through the synchronizing wheel and be connected with second transmission lead screw in second installation piece (25), second transmission lead screw be connected with front and back fly leaf (26) that second installation piece (25) right side set up through the second transmission piece that cup joints on it, the front side of second installation piece (25) be provided with connecting seat (36), the front side of connecting seat (36) be provided with detection slide rail (38) complex slider (37) that set up on support (6), front and back movable motor (36) be connected to distribution control box (2).
Further, upper and lower head gear including setting up third installation piece (27) on front and back fly leaf (26), third installation piece (27) in be provided with the third transmission lead screw, and the third transmission lead screw pass through synchronizing wheel and third installation piece (27) right side upper and lower movable motor (28) be connected, through upper and lower fly leaf (30) that third transmission piece that cup joints on it and third installation piece (27) right side set up be connected, upper and lower fly leaf (30) below be provided with connecting block (31), the below of connecting block (31) be provided with mounting panel (32), four corners of mounting panel (32) be provided with detection device (33), upper and lower movable motor (28) be connected to distribution control box (2).
Furthermore, a left limiting rod (35) and a right limiting rod (34) which are matched with the left side of the left movable seat (23) and the left movable seat and the right movable seat (26) are arranged on the bracket (6).
Further, detection device (33) including setting up fixing base (39) on mounting panel (32), the outside of fixing base (39) be provided with upper and lower slide rail (43), the top is provided with regulating plate (40), upper and lower slide rail (43) cooperate and have detection seat (41), and the top of detecting seat (41) is connected with regulating plate (40) through adjusting pole (44), detection seat (41) below be provided with capacitive touch screen (15) complex detector (42).
Further, the below of frame (1) be provided with the accent foot ware (8) and the walking wheel (9) of mutually supporting, the front side of distribution control box (2) be the side door, and be connected with frame (1) through hasp (10).
The invention has the beneficial effects that:
1. the invention aims to provide a capacitive touch screen detection mechanism which is characterized in that a feeding slide rail and a tray are fed below the detection mechanism for detection, so that the conditions of artificial scratches and dirt are reduced, the increase of reject ratio is avoided, meanwhile, the alignment is accurate, and the probability of product misjudgment is reduced.
2. Due to the design of the pushing plate, the tray can be pushed conveniently, and the detection efficiency is improved.
3. The design of interception seat and interception post can prevent that the propelling movement dynamics is too big, pushes away the frame with the capacitive touch screen that has detected, avoids taking place accidental damage.
4. The movable device can realize the adjustment in all directions, and can improve the detection precision and the detection effect.
5. The left and right moving device, the front and back moving device and the up and down moving device have simple structures, convenient operation and stable movement, and the movement is controlled by the motor, so the adjusting precision is high.
6. The design of the left and right limiting columns and the front and rear limiting columns can prevent the action amplitude from being too large and from colliding with the support, and further avoid the equipment from being damaged. And the detection precision is improved.
7. The structural design of the detection device facilitates the disassembly and replacement, and meanwhile, the height of the detector can be finely adjusted, so that the detection device can be suitable for the detection of capacitive touch screens with various sizes.
8. The design of the foot adjusting device and the walking wheels can ensure that the shaking does not occur during detection, and meanwhile, the movement is convenient.
Drawings
Fig. 1 is a schematic perspective view of a capacitive touch screen detection mechanism.
Fig. 2 is a perspective view of the detection mechanism.
Fig. 3 is a partially enlarged view of a in fig. 1.
Fig. 4 is a partially enlarged view of B in fig. 2.
Fig. 5 is a partially enlarged view of C in fig. 2.
The text labels shown in the figures are represented as: 1. a frame; 2. a power distribution control box; 3. a push plate; 4. a detection mechanism; 5. operating a touch screen; 6. a support; 7. a pushing handle; 8. a foot regulator; 9. a traveling wheel; 10. locking; 11. a feeding slide rail; 12. an interception base; 13. intercepting columns; 14. a feeding slide rail mounting plate; 15. a capacitive touch screen; 16. a mounting seat; 17. a tray; 21. a left and right movable motor; 22. a first mounting block; 23. a left and a right movable seats; 24. a front and rear movable motor; 25. a second mounting block; 26. a front and rear movable block; 27. a third mounting block; 28. a motor moving up and down; 30. an upper movable plate and a lower movable plate; 31. connecting blocks; 32. mounting a plate; 33. a detection device; 34. front and rear limiting rods; 35. a left and a right limiting rods; 36. a connecting seat; 37. a slider; 38. detecting a slide rail; 39. a fixed seat; 40. an adjusting plate; 41. a detection seat; 42. a detector; 43. an upper slide rail and a lower slide rail; 44. and adjusting the rod.
Detailed Description
The following detailed description of the present invention is given for the purpose of better understanding technical solutions of the present invention by those skilled in the art, and the present description is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.
As shown in fig. 1 to 5, the structure of the present invention is: the utility model provides a capacitive touch screen detection mechanism, it includes frame 1, frame 1 in be provided with distribution control box 2, the top of frame 1 is provided with pay-off slide rail 11, and installs in frame 1 through pay-off slide rail mounting panel 14, pay-off slide rail 11 on be provided with rather than the tray 17 that matches, tray 17 on lay capacitive touch screen 15, the middle part of frame 1 be provided with support 6, support 6 on install detection mechanism 4, detection mechanism 4 include interconnect's head and detection device 33, and detection device and the cooperation of capacitive touch screen 15, head and detection device 33 all be connected to distribution control box 2, and distribution control box 2 and the 5 intercommunications of operation touch screen that set up on the frame 1.
Preferably, the right end of the sliding rail 11 is further matched with a pushing plate 3 matched with the tray 17, and the right side of the pushing plate 3 is provided with a pushing handle 7.
Preferably, the rear side of the left end of the feeding slide rail 11 is provided with an intercepting seat 12, and the intercepting seat 12 is provided with an intercepting column 13 matched with the tray 17.
Preferably, the moving device comprises a left moving device and a right moving device which are arranged on the frame 1, the left moving device and the right moving device are provided with a front moving device and a rear moving device, the front moving device and the rear moving device are provided with an up-down moving device, and the detection device 33 is arranged below the up-down moving device.
Preferably, the movable device about including setting up the first installation piece 22 of moving towards about on support 6, first installation piece in be provided with first transmission lead screw, and first transmission lead screw pass through synchronizing wheel and first installation piece 22 below about movable motor 21 be connected, through the first transmission piece that cup joints on it with first installation piece 22 top set up about movable seat 23 be connected, around the movable device set up about on movable seat 23, about movable motor 21 be connected to distribution control box 2.
Preferably, the front and back movable device include second installation piece 25 and front and back movable motor 24 that set up on left and right movable seat 23, front and back movable motor 24 pass through the synchronizing wheel and be connected with the second transmission lead screw in the second installation piece 25, the second transmission lead screw pass through the second transmission piece that cup joints on it and be connected with front and back movable plate 26 that second installation piece 25 right side set up, the front side of second installation piece 25 be provided with connecting seat 36, the front side of connecting seat 36 be provided with the detection slide rail 38 complex slider 37 that sets up on the support 6, front and back movable motor 36 be connected to distribution control box 2.
Preferably, the up-down moving device comprises a third mounting block 27 arranged on the front-back moving plate 26, a third transmission screw rod is arranged in the third mounting block 27, the third transmission screw rod is connected with an up-down moving motor 28 on the right side of the third mounting block 27 through a synchronizing wheel, and is connected with an up-down moving plate 30 arranged on the right side of the third mounting block 27 through a third transmission block sleeved on the third transmission screw rod, a connecting block 31 is arranged below the up-down moving plate 30, a mounting plate 32 is arranged below the connecting block 31, detection devices 33 are arranged at four corners of the mounting plate 32, and the up-down moving motor 28 is connected to the power distribution control box 2.
Preferably, the bracket 6 is provided with a left and right limiting rod 35 engaged with the left side of the left and right movable seats 23 and a front and rear limiting rod 34 engaged with the front and rear movable plates 26.
Preferably, detection device 33 including setting up fixing base 39 on mounting panel 32, the outside of fixing base 39 be provided with upper and lower slide rail 43, the top is provided with regulating plate 40, upper and lower slide rail 43 cooperate and have detection seat 41, and the top of detecting seat 41 is connected with regulating plate 40 through adjusting pole 44, detection seat 41 below be provided with capacitive touch screen 15 complex detector 42.
Preferably, the below of frame 1 be provided with the accent foot ware 8 and the walking wheel 9 of mutually supporting, the front side of distribution control box 2 be the side door, and be connected with frame 1 through hasp 10.
When in specific use, the capacitive touch screen 15 is firstly arranged in the mounting seat 16 on the tray 17, then the tray 17 is arranged on the feeding guide rail 11, then the pushing plate 3 is pushed forwards through the pushing handle 7, then the tray 17 is put under the detecting mechanism 4, then the left and right movable motor 21, the front and back movable motor 24 and the up and down movable motor 27 are controlled by operating the touch screen 5 to drive the detecting device 33 to move up, down, left, right, and front and back, further, the detector 42 of the detection device 33 detects the capacitive touch screen 15, so that the capacitive touch screen 15 on the tray 17 is completely detected, and feeds back the detection result to the operation display screen 5, then places the next tray 17, sends the tray to the lower part of the detection mechanism 4 for detection in the same way, meanwhile, the first tray 17 is sent out and intercepted by the intercepting column 13, and then the first tray is taken down, so that the whole detection process of the capacitive touch screen 15 on the first tray 17 is completed.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.
Claims (1)
1. A capacitive touch screen detection mechanism comprises a rack (1) and is characterized in that a power distribution control box (2) is arranged in the rack (1), a feeding slide rail (11) is arranged above the rack (1) and is installed on the rack (1) through a feeding slide rail installation plate (14), a tray (17) matched with the feeding slide rail (11) is arranged on the feeding slide rail (11), a capacitive touch screen (15) is placed on the tray (17), a support (6) is arranged in the middle of the rack (1), a detection mechanism (4) is installed on the support (6), the detection mechanism (4) comprises a movable device and a detection device (33) which are connected with each other, the detection device is matched with the capacitive touch screen (15), the movable device and the detection device (33) are both connected to the power distribution control box (2), and the power distribution control box (2) is communicated with an operation touch screen (5) arranged on the rack (1), the movable device comprises a left movable device and a right movable device which are arranged on the frame (1), the left movable device and the right movable device are provided with a front movable device and a rear movable device, the front movable device and the rear movable device are provided with an up-down movable device, and the detection device (33) is arranged below the up-down movable device; the left and right moving device comprises a first mounting block (22) arranged on a support (6) in the left and right directions, a first transmission screw rod is arranged in the first mounting block and is connected with a left and right moving motor (21) below the first mounting block (22) through a synchronizing wheel, the first transmission screw rod is connected with a left and right moving seat (23) arranged above the first mounting block (22) through a first transmission block sleeved on the first transmission screw rod, the front and back moving device is arranged on the left and right moving seats (23), the left and right moving motors (21) are connected to a power distribution control box (2), the front and back moving device comprises a second mounting block (25) arranged on the left and right moving seats (23) and a front and back moving motor (24), the front and back moving motor (24) is connected with a second transmission screw rod in the second mounting block (25) through a synchronizing wheel, the second transmission screw rod is connected with a front and rear movable plate (26) arranged on the right side of the second installation block (25) through a second transmission block sleeved on the second transmission screw rod, a connecting seat (36) is arranged on the front side of the second installation block (25), a sliding block (37) matched with a detection sliding rail (38) arranged on a support (6) is arranged on the front side of the connecting seat (36), the front and rear movable motor (24) is connected to the power distribution control box (2), the up-down moving device comprises a third installation block (27) arranged on the front and rear movable plate (26), a third transmission screw rod is arranged in the third installation block (27), the third transmission screw rod is connected with an up-down movable motor (28) on the right side of the third installation block (27) through a synchronizing wheel, and the third transmission screw rod is connected with an up-down movable plate (30) arranged on the right side of the third installation block (27) through a third transmission block sleeved on the third transmission, the utility model discloses a power distribution device, including upper and lower fly leaf (30) below be provided with connecting block (31), the below of connecting block (31) be provided with mounting panel (32), four corners of mounting panel (32) be provided with detection device (33), upper and lower movable motor (28) be connected to distribution control box (2), detection device (33) including setting up fixing base (39) on mounting panel (32), the outside of fixing base (39) be provided with upper and lower slide rail (43), the top is provided with regulating plate (40), upper and lower slide rail (43) cooperate and have detection seat (41), and the top of detecting seat (41) is connected with regulating plate (40) through adjusting pole (44), detection seat (41) below be provided with detector (42), the below of frame (1) be provided with mutually supporting and transfer foot ware (8) and walking wheel (9), the front side of the power distribution control box (2) is a side door and is connected with the frame (1) through a lock catch (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910143883.4A CN109669091B (en) | 2016-07-20 | 2016-07-20 | Capacitive touch screen detection mechanism |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910143883.4A CN109669091B (en) | 2016-07-20 | 2016-07-20 | Capacitive touch screen detection mechanism |
| CN201610574087.2A CN106814274B (en) | 2016-07-20 | 2016-07-20 | A kind of capacitance touch screen automatic test machine |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610574087.2A Division CN106814274B (en) | 2016-07-20 | 2016-07-20 | A kind of capacitance touch screen automatic test machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109669091A CN109669091A (en) | 2019-04-23 |
| CN109669091B true CN109669091B (en) | 2021-03-16 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610574087.2A Expired - Fee Related CN106814274B (en) | 2016-07-20 | 2016-07-20 | A kind of capacitance touch screen automatic test machine |
| CN201910143883.4A Active CN109669091B (en) | 2016-07-20 | 2016-07-20 | Capacitive touch screen detection mechanism |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610574087.2A Expired - Fee Related CN106814274B (en) | 2016-07-20 | 2016-07-20 | A kind of capacitance touch screen automatic test machine |
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| Country | Link |
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| CN (2) | CN106814274B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109342242B (en) * | 2018-10-26 | 2021-04-06 | 陈仕铮 | Screen detection device is used in production of car display screen |
| CN111141770B (en) * | 2020-01-18 | 2022-09-09 | 信泰电子（西安）有限公司 | X-ray detector for circuit board |
| CN113552440A (en) * | 2020-04-01 | 2021-10-26 | 深圳市研测科技有限公司 | Touch screen test system for tablet computer |
| CN112499180B (en) * | 2020-12-08 | 2022-04-19 | 江西中泰和讯科技有限公司 | Automatic test equipment for capacitive touch screen |
| CN117491791B (en) * | 2023-12-27 | 2024-03-26 | 国网辽宁省电力有限公司 | Resonance test device for electric power system |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1203407C (en) * | 2003-02-10 | 2005-05-25 | 苏州惟成光电有限公司 | Quick linear test method for touch screen |
| CN101776976B (en) * | 2010-01-28 | 2012-01-25 | 意力(广州)电子科技有限公司 | Linear test machine of capacitance touch screen |
| CN202171626U (en) * | 2011-08-05 | 2012-03-21 | 深圳市精智达技术有限公司 | Multi-point point-touching touch screen testing machine |
| CN202676833U (en) * | 2012-07-09 | 2013-01-16 | 东莞市森思电子机械科技有限公司 | Touch screen service life testing machine |
| KR20140064585A (en) * | 2012-11-20 | 2014-05-28 | 이영재 | A touch screen scale up system |
| JP6022928B2 (en) * | 2012-12-21 | 2016-11-09 | シャープ株式会社 | Touch panel device |
| JP2015141448A (en) * | 2014-01-27 | 2015-08-03 | 日本電産リード株式会社 | touch panel inspection device |
| CN204066078U (en) * | 2014-08-08 | 2014-12-31 | 福建省辉锐电子技术有限公司 | A kind of capacitance touch screen test machine |
| CN104792801A (en) * | 2015-04-01 | 2015-07-22 | 广东韦达尔科技有限公司 | Automatic detection machine for silver pulp line |
| CN104865268B (en) * | 2015-06-11 | 2017-06-16 | 苏州博众精工科技有限公司 | A kind of electronic display optical de-tection means |
| CN105093013B (en) * | 2015-07-23 | 2018-05-08 | 中国科学院上海光学精密机械研究所 | Touch screen detection device |
| CN105319744A (en) * | 2015-11-16 | 2016-02-10 | 太原风华信息装备股份有限公司 | Liquid crystal display screen testing device |
| CN105675043B (en) * | 2016-01-08 | 2018-04-17 | 上海轩田工业设备有限公司 | A kind of touch screen performance detection device |
| CN208140834U (en) * | 2018-05-25 | 2018-11-23 | 张亚平 | touch screen automatic detecting machine |
-
2016
- 2016-07-20 CN CN201610574087.2A patent/CN106814274B/en not_active Expired - Fee Related
- 2016-07-20 CN CN201910143883.4A patent/CN109669091B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106814274B (en) | 2019-04-12 |
| CN106814274A (en) | 2017-06-09 |
| CN109669091A (en) | 2019-04-23 |
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Effective date of registration: 20210603 Address after: 215300 No.61, Wenpu East Road, Shipu, Qiandeng Town, Kunshan City, Suzhou City, Jiangsu Province Patentee after: XIANGSHI PHOTOELECTRIC TECHNOLOGY (KUNSHAN) Co.,Ltd. Address before: 523808 No. 1, University Road, Songshan Lake Science and Technology Industrial Park, Dongguan, Guangdong Patentee before: DONGGUAN University OF TECHNOLOGY |
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