CN213689193U

CN213689193U - Multifunctional flexible device reliability test platform

Info

Publication number: CN213689193U
Application number: CN202022615320.1U
Authority: CN
Inventors: 冯雪; 唐瑞涛; 付浩然; 张弘; 江楠; 曲绍兴; 张柏诚; 周涛
Original assignee: Tsinghua University; Institute of Flexible Electronics Technology of THU Zhejiang
Current assignee: Tsinghua University; Institute of Flexible Electronics Technology of THU Zhejiang
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2021-07-13
Anticipated expiration: 2030-11-12

Abstract

The utility model provides a multi-functional flexible device reliability test platform, including first motion piece, second motion piece, third motion piece and mechanical properties measuring device, first motion piece with the second motion piece is used for fixed flexible device's first end and second end respectively, and can follow a primary shaft linear motion, the third motion piece with the second motion piece passes through mechanical properties measuring device connects, and can drive the second motion piece is followed primary shaft linear motion. The utility model provides a multi-functional flexible device reliability test platform can realize being surveyed the quantitative measurement of flexible device mechanical properties under the multiple state on an equipment.

Description

Multifunctional flexible device reliability test platform

Technical Field

The utility model relates to a flexible components and parts field especially relates to a multi-functional flexible device reliability test platform.

Background

The flexible electronic product needs to be tested in both mechanical and electrical aspects to verify the reliability of the flexible electronic product. In terms of mechanics, the performance test of stretchability and bendability is usually carried out within a certain range; in electrical terms, the stability of the electrical signal in the working state (i.e. in the tensile and bending states) is tested. The stretched and bent states are the daily operating states of the flexible electronic device. The existing experimental test equipment has single function, and one piece of equipment cannot simultaneously realize accurate measurement of tensile property and bending property. Although the existing equipment capable of stretching and bending the flexible electronic product is available in the prior stage, the equipment can not meet the experimental quantification requirement, and in addition, the structural design is unreasonable, the functionality is poor, the driving device and the platform can not be effectively utilized, and the integration level of the equipment is not enough.

In the electrical test aspect, the existing equipment usually measures the device after stretching and bending the device. The testing scheme has great inaccuracy, and for flexible electronic products, the flexible electronic products are continuously bent in a working state, and the performance under a single state is good and does not represent the reliable performance of the whole bending process.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a multi-functional flexible device reliability test platform.

The utility model provides a multi-functional flexible device reliability test platform, including first motion piece, second motion piece, third motion piece and mechanical properties measuring device, first motion piece with the second motion piece is used for fixed flexible device's first end and second end respectively, and can follow a primary shaft linear motion, the third motion piece with the second motion piece passes through mechanical properties measuring device connects, and can drive the second motion piece is followed primary shaft linear motion.

The servo control device comprises a first driving device for driving the first motion block to move linearly, a second driving device for driving the second motion block to move linearly, and a linear displacement sensing device for sensing linear displacement of the first motion block and the second motion block, wherein the first driving device and the second driving device control the first motion block and the second motion block to move linearly according to a signal of a general control device, and linear displacement increment of the first motion block and the second motion block is adjusted according to a feedback result of the linear displacement sensing device.

Furthermore, a first chuck is arranged on the first motion block, a second chuck is arranged on the second motion block, the first end and the second end are oppositely arranged along the direction of the first axis, the first chuck comprises a first clamping portion used for fixing the first end of the flexible device, and the second chuck comprises a second clamping portion used for fixing the second end of the flexible device.

Furthermore, a first chuck is arranged on the first motion block, a second chuck is arranged on the second motion block, the first end and the second end are oppositely arranged in the direction perpendicular to the first axis, the first chuck comprises a third clamping portion used for fixing the first end of the flexible device, and the second chuck comprises a fourth clamping portion used for fixing the second end of the flexible device.

Further, the servo control device comprises a third driving device for driving the first chuck to rotate, a fourth driving device for driving the second chuck to rotate, and an angular displacement sensing device for sensing the angular displacement of the first chuck and the second chuck, wherein the third driving device and the fourth driving device control the rotation of the first chuck and the second chuck according to the signal of the general control device, and adjust the angular displacement increment of the first chuck and the second chuck according to the feedback result of the angular displacement sensing device.

The support is provided with a supporting cantilever extending to the position above the second motion block, a third chuck is arranged below the supporting cantilever, and a fourth chuck matched with the third chuck for use is arranged above the second motion block.

Further, the flexible device comprises an electrical property measuring device for measuring the electrical property of the flexible device, and at least one of the first chuck and the second chuck and/or at least one of the third chuck and the fourth chuck is in signal connection with the electrical property measuring device.

Further, the general control device comprises a mechanical module in signal connection with the mechanical property measuring device and/or an electrical module in signal connection with the electrical property measuring device, the mechanical module controls the first driving device and the second driving device according to the signal transmitted by the mechanical property measuring device, and the electrical module controls the first driving device and the second driving device according to the signal transmitted by the electrical property measuring device.

Further, still include optical lens, optical lens extends to above first motion piece and the second motion piece.

Further, the environment box is arranged between the first motion block and the second motion block.

The utility model provides a multi-functional flexible device reliability test platform can realize being surveyed the quantitative measurement of flexible device mechanical properties under the multiple state on an equipment, guides all to the design of the detection of flexible electron device and flexible electron device product and has very important effect.

Drawings

Fig. 1 is a schematic diagram of a first embodiment of the multifunctional flexible device reliability testing platform of the present invention.

Fig. 2 is a three-dimensional exploded schematic view of the first embodiment of the multifunctional flexible device reliability testing platform of the present invention.

Fig. 3 is a schematic view of the first embodiment of the multifunctional flexible device reliability testing platform according to the present invention from another perspective.

Fig. 4 is a schematic front view of the first embodiment of the multifunctional flexible device reliability testing platform of the present invention.

Fig. 5 is a schematic diagram of a second embodiment of the multifunctional flexible device reliability testing platform of the present invention.

Fig. 6 and fig. 7 are schematic diagrams of a third embodiment of the multifunctional flexible device reliability testing platform of the present invention.

Fig. 8 and 9 are schematic diagrams of a chuck in a fourth embodiment of the multifunctional platform for testing reliability of a flexible device according to the present invention.

Fig. 10 is a schematic diagram of a fifth embodiment of the multifunctional flexible device reliability testing platform of the present invention.

Fig. 11 is a schematic diagram of a sixth embodiment of the multifunctional flexible device reliability testing platform of the present invention.

Description of the symbols:

a base-10; a first guide mechanism-11; a second guide mechanism-12; a first linear displacement sensing device-13; a second linear displacement sensing device-14; a first motion block-20; a third driving device-21; a first support-22; a first chuck-23; a third clamping portion-231; a first support plate-24; a main clamping plate-232; a movable splint-233; a metal pin-234; a first transmission-25; a first driven pulley-26; a first drive pulley-27; a first angular displacement sensing means-28; a third motion block-30; a second support-31; a second motion block-40; a fourth drive means-41; a third support-42; a second chuck-43; a fourth clamp-431; a second support plate-44; a second transmission-45; a second driven pulley-46; a second drive pulley-47; a second angular displacement sensing device-48; a fourth chuck-49; a susceptor-491; mechanical property measuring device-50; a first drive means-60; a second drive means-70; bracket-80; a support boom-81; a third chuck-82; an optical lens-90; a support bar-91; environmental chamber-100.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

First embodiment

As shown in fig. 1 to 4, the utility model discloses a multi-functional flexible device reliability test platform includes base 10 and locates first motion piece 20, third motion piece 30, second motion piece 40, mechanical properties measuring device 50, servo control device and the total controlling device on base 10.

Wherein the first and second moving

blocks

20 and 40 are used to fix the flexible device and apply force to the flexible device by relative movement thereof. The mechanical property measuring device 50 is used for measuring the mechanical property of the flexible device, such as the magnitude of force, and the mechanical property measuring device 50 in this embodiment is a pressure sensor. The servo control means is used to precisely control the movement of the first, second and

third motion blocks

20, 40, 30. The master control device is used for receiving the measurement result of the mechanical property, feeding the measurement result of the mechanical property back to a display device, or controlling the servo control device to drive the first motion block 20, the second motion block 40 and the third motion block 30 according to the mechanical property of the flexible device. In the present invention, the servo control device includes a first driving device 60, a second driving device 70, a third driving device 21, a fourth driving device 41, a linear displacement sensing device, and an angular displacement sensing device. In this embodiment, the driving device is a driving motor, the linear displacement sensing device is a grating scale, and the angular displacement sensing device is an absolute value encoder.

Referring to fig. 1, the base 10 is a rectangular plate, and the base 10 is provided with a guide mechanism extending along the length direction thereof, in this embodiment, the guide mechanism is a guide rail which is divided into two sections, namely a first guide mechanism 11 and a second guide mechanism 12. The first motion block 20 is disposed on the first guide mechanism 11 and moves linearly along a first axis by the first driving device 60. The third motion block 30 and the second motion block 40 are connected by a mechanical property measuring device 50, and the connected third motion block 30 and the second motion block 40 are arranged on the second guide mechanism 12 and are driven by the second driving device 70 to move linearly along the first axis. The first driving device 60 is located at one end of the base 10, and is connected to the nut at the bottom of the first moving block 20 through a lead screw, so as to drive the first moving block 20 to move linearly through the cooperation of the lead screw and the nut. The second driving device 70 is located at the other end of the base 10, and is connected to the nut at the bottom of the second motion block 40 through a lead screw, and drives the third motion block 30 and the second motion block 40 to move linearly through the cooperation of the lead screw and the nut.

The linear displacement sensing device is disposed on the base 10, and the linear displacement sensing device in this embodiment includes a first linear displacement sensing device 13 and a second linear displacement sensing device 14 respectively disposed along the first guide mechanism 11 and the second guide mechanism 12. The first linear displacement sensing device 13 is arranged side by side with the first guiding mechanism 11, and the first linear displacement sensing device 13 is in signal connection with the master control module. The first linear displacement sensing device 13 is used for measuring the displacement of the first motion block 20, and transmitting the measurement result to the master control module, so that the master control module can adjust the operation condition of the first driving device 60 according to the feedback result of the displacement of the first motion block 20, and controls the linear displacement increment of the first motion block 20 at a required level, thereby realizing the accurate control of the linear displacement of the first motion block 20. The second linear displacement sensing device 14 is disposed side by side with the second guiding mechanism 12, and is in signal connection with the main control module. The second linear displacement sensing device 14 is used for measuring the displacement of the second motion block 40 and the third motion block 30, and transmitting the measurement result to the general control module, so that the general control module can adjust the operation of the second driving device 70 according to the displacement feedback result of the second motion block 40 and the third motion block 30, and controls the linear displacement increment of the second motion block 40 and the third motion block 30 at the required level, thereby realizing the accurate control of the linear displacement of the second motion block 40 and the third motion block 30.

Referring specifically to fig. 2, the first motion block 20 includes a first support 22 and a first collet 23. The first support 22 straddles the first guide mechanism 11 of the base 10 and is slidable relative to the first guide mechanism 11. The bottom of the first support 22 is provided with a nut matched with the screw rod, and the screw rod connected with the output shaft of the first driving device 60 extends into the bottom of the first support 22 and is connected with the nut of the first support 22. The third driving device 21 and the first chuck 23 are disposed side by side on the first support 22 along the first axial direction, the third driving device 21 is located at a side close to the first driving device 60, and the first chuck 23 is located at a side close to the second moving block 40.

The first support 22 is provided with two first support plates 24 at both ends of one side close to the second moving block 40, and the first chuck 23 includes a rectangular first clamping portion rotatably provided between the two first support plates 24. The first support plate 24 is provided with a plurality of groups of through holes arranged along the height direction thereof, and the first chuck 23 is fixed to different heights of the first support 22 by the matching positioning of the through holes at different heights and the bolts. The first motion block 20 is provided with a first transmission mechanism 25 at the outer side of the first support plate 24, and the first chuck 23 is connected with the third driving device 21 through the first transmission mechanism 25. The first transmission mechanism 25 includes a first driven wheel 26 and a first driving wheel 27, the first driven wheel 26 is connected with one end of the first chuck 23, the first driving wheel 27 is connected with the output shaft of the third driving device 21, and the first driving wheel 27 is in transmission connection with the first driven wheel 26. It is understood that the transmission connection can adopt a gear engagement, belt transmission and chain transmission mode. In the present embodiment, the first driven pulley 26 and the first driving pulley 27 adopt a belt transmission type.

The third motion block 30 includes a second support 31, and the second support 31 straddles the second guide mechanism 12 of the base 10 and is slidable with respect to the second guide mechanism 12. The bottom of the second support 31 is provided with a nut matched with the screw rod, and the screw rod connected with the output shaft of the second driving device 70 extends into the bottom of the second support 31 and is connected with the nut of the second support 31.

The second motion block 40 includes a third seat 42 and a second collet 43. The second mount 31 and the third mount 42 are connected by a mechanical property measuring device 50. The fourth driving device 41 and the second chuck 43 are disposed side by side on the third support 42 along the first axial direction, the fourth driving device 41 is located at a side close to the second driving device 70, and the second chuck 43 is located at a side close to the first moving block 20. The second clamp 43 is paired with the first clamp 23 for performing tension, compression or bending loading experiments on the tested flexible device.

The third support 42 is provided with two second support plates 44 at both ends of one side adjacent to the first moving block 20, and the second chuck 43 includes a rectangular second clamping portion rotatably provided between the two second support plates 44. The second support plate 44 is provided with a plurality of sets of through holes arranged along the height direction thereof, and the second clamp 43 is fixed to the third support 42 at different heights by the matching positioning of the through holes at different heights and the bolts. The second motion block 40 is provided with a second transmission mechanism 45 at the outer side of the second support plate 44, and the second chuck 43 is connected with the fourth driving device 41 through the second transmission mechanism 45. The second transmission mechanism 45 includes a second driven wheel 46 and a second driving wheel 47, the second driven wheel 46 is connected with one end of the second chuck 43, the second driving wheel 47 is connected with the output shaft of the fourth driving device 41, and the second driving wheel 47 is in transmission connection with the second driven wheel 46. It is understood that the transmission connection can adopt a gear engagement, belt transmission and chain transmission mode. In the present embodiment, the second driven pulley 46 and the second driving pulley 47 adopt a belt transmission manner.

Angular displacement sensing means are provided on the first support 22 and the third support 42. The angular displacement sensing device in this embodiment includes a first angular displacement sensing device 28 and a second angular displacement sensing device 48. The first angular displacement sensing device 28 is arranged on the first support 22 and located at one end of the first chuck 23 opposite to the first driven wheel 26, the first angular displacement sensing device 28 is in signal connection with the master control module and is used for measuring the rotation angle of the first chuck 23 and transmitting the measurement result to the master control module, the master control module adjusts the rotation parameter of the third driving device 21 according to the feedback result of the first angular displacement sensing device 28, and controls the angular displacement increment of the first chuck 23 at a proper level, so that the accurate control of the rotation angle of the first chuck 23 is realized. The second angular displacement sensing device 48 is disposed on the third support 42 and located at an end of the second chuck 43 opposite to the second driven wheel 46, the second angular displacement sensing device 48 is in signal connection with the master control module for measuring the rotation angle of the second chuck 43 and transmitting the measurement result to the master control module, and the master control module adjusts the rotation parameter of the fourth driving device 41 according to the feedback result of the second angular displacement sensing device 48, so as to control the angular displacement increment of the second chuck 43 at a proper level, thereby realizing precise control of the rotation angle of the second chuck 43.

Further, the utility model discloses a multi-functional flexible device reliability test platform still includes a support 80, and support 80 is fixed in the position that is close to second drive arrangement 70 on the base 10. The bracket 80 is provided with a supporting cantilever 81 at one side close to the second motion block 40, a third chuck 82 is arranged below the supporting cantilever 81, and a fourth chuck 49 matched with the third chuck 82 is arranged at the top of the second motion block 40. The third chuck 82 and the fourth chuck 49 are arranged in a matching way, so that bending loading on different curvature positions of a tested flexible device and the like can be realized. Furthermore, one end of the supporting cantilever 81 far from the bracket 80 is provided with a step surface, the third chuck 82 is arranged on the step, the clamping surface of the third chuck is flush with the bottom surface of the main body part of the supporting cantilever 81, meanwhile, the second motion block 40 is provided with a bearing platform 491 at the side of the fourth chuck 49, the upper surface of the bearing platform 491 is flush with the clamping surface of the fourth chuck 49, and the main body part of the supporting cantilever 81 and the bearing platform 491 play a supporting and guiding role in supporting and guiding the main body part of the tested flexible device when the equal-curvature bending loading test of the tested flexible device is carried out, so as to ensure the flatness of the main body part of the tested flexible device when the equal-curvature bending loading test is carried out.

It should be noted that the chuck of the present invention includes a movable clamp plate 232 and a main clamp plate 233 (see fig. 9), the movable clamp plate 232 is disposed on the main clamp plate 233 and can be detached from the main clamp plate 233 to form a clamping surface between the main clamp plate 233 and the movable clamp plate 232 for clamping the tested component. Specifically, the first chuck 23 includes a first main plate and a first movable plate detachably disposed on the first main plate, the second chuck 43 includes a second main plate and a second movable plate detachably disposed on the second main plate, the third chuck 82 includes a third main plate and a third movable plate detachably disposed on the third main plate, the fourth chuck 49 includes a fourth main plate and a fourth movable plate detachably disposed on the fourth main plate, two ends of the first main plate and the second main plate are respectively provided with two protruding columns to cooperate with mounting holes disposed on corresponding support plates, and the first chuck 23 and the second chuck 43 are rotatably mounted on corresponding support plates.

The following describes a specific operation method for performing a stretching, shrinking or bending loading experiment on a tested flexible device.

When a tensile or compression experiment is performed on the flexible device to be tested, two opposite ends (two ends in the first axial direction) of the flexible device to be tested in the length direction are fixed on the first chuck 23 and the second chuck 43; the master control module controls the first motion block 20, the third motion block 30 and the second motion block 40 to move to a preset position by using the first driving device 60 and the second driving device 70 according to the input motion displacement, so that the flexible device is tiled but no external force is applied to the flexible device, in the motion process, the first linear displacement sensing device 13 and the second linear displacement sensing device 14 are used for respectively measuring the displacement of the first motion block 20, the third motion block 30 and the second motion block 40, the operation conditions of the first driving device 60 and the second driving device 70 are controlled according to the linear displacement feedback result, and the accurate control of the displacement of the first motion block 20, the third motion block 30 and the second motion block 40 is realized; then, the master control module controls the third motion block 30 and the second motion block 40 to move linearly by using the second driving device 70 according to the input loading displacement, during the movement, the second linear displacement sensing device 14 is used for measuring the displacement of the third motion block 30 and the second motion block 40, the operation condition of the second driving device 70 is controlled according to the linear displacement feedback result, the one-side loading of the flexible device is realized, and during the loading, the mechanical property measuring device 50 is used for reading the magnitude of the loading force in real time.

The linear displacement of the first motion block 20 and the second motion block 40 is controlled by using the linear displacement as the input quantity, and the mechanical property measuring device 50 is used to realize the real-time measurement of the mechanical property of the flexible device when loading, which can be understood in other embodiments of the present invention, the mechanical property of the flexible device can also be used as the input quantity to control the linear displacement of the first motion block 20 and the second motion block 40. In this control method, after the tested flexible device is fixed by the first chuck 23 and the second chuck 43, the general control module uses the first driving device 60 and the second driving device 70 to control the first motion block 20 and the second motion block 40 to move linearly to the position where the flexible device is tiled but not subjected to external force according to the input motion displacement, then uses the mechanics module to calculate the linear displacement of the first motion block 20 and/or the second motion block 40 according to the mechanical property of the input flexible device, uses the first driving device 60 and/or the second driving device 70 to control the linear motion of the first motion block 20 and/or the second motion block 40, during the motion process, uses the feedback result of the first linear displacement sensing device 13 and the second linear displacement sensing device 14 to adjust the linear displacement increment of the first motion block 20 and the second motion block 40, and realizing the accurate loading of the flexible device on one side or two sides.

When the flexible device to be tested is subjected to bending loading, two ends of the flexible device to be tested are fixed to the first chuck 23 and the second chuck 43; then, the general control module controls the first chuck 23 and the second chuck 43 to rotate around respective axes by using the third driving device 21 and the fourth driving device 41 according to the input rotation angle, senses the rotation angles of the first chuck 23 and the second chuck 43 by using the first angular displacement sensing device 28 and the second angular displacement sensing device 48 during the rotation process, and controls the rotation of the third driving device 21 and the fourth driving device 41 according to the feedback result of the rotation angles, so as to realize the accurate control of the rotation angles of the first chuck 23 and the second chuck 43; and meanwhile, the first motion block 20 and the third motion block 30 are controlled to move linearly according to the input linear displacement, and in the motion process, the operation conditions of the first driving device 60 and the second driving device 70 are controlled according to the linear displacement feedback result, so that different types of bending loading of the tested flexible device, such as single-side bending, vertical bending of a clamping end all the time and other types of bending shearing force, are realized.

Second embodiment

The second embodiment is further improved on the basis of the first embodiment, and if not specifically described, the structure of the multifunctional flexible device reliability test platform in the second embodiment is the same as that of the corresponding part of the multifunctional flexible device reliability test platform in the first embodiment.

As shown in fig. 5, in the second embodiment, the first chuck 23 further includes a third clamping portion 231, the third clamping portion 231 is disposed on a side of the first clamping portion adjacent to the second chuck 43, the second chuck 43 further includes a fourth clamping portion 431, and the fourth clamping portion 431 is disposed on a side of the second clamping portion adjacent to the first chuck 23. The third clamping portion 231 includes a fifth main plate and a fifth movable plate detachably disposed on the fifth main plate, and the fourth clamping portion 431 includes a sixth main plate and a sixth movable plate detachably disposed on the sixth main plate. The third clamping portion 231 is fixed to one end of the first clamp 23 by a bolt passing through the third clamping portion 231 or the first clamping portion, and the fourth clamping portion 431 is fixed to one end of the second clamp 43, which is away from the third clamping portion 231, by a bolt passing through the fourth clamping portion 431 or the second clamping portion. In the present embodiment, the third clamping portion 231 is located at an end of the first clamping head 23 close to the first angular displacement sensing device 28, and the fourth clamping portion 431 is located at an end of the second clamping head 43 close to the second transmission mechanism 45. The third clamping portion 231 and the fourth clamping portion 431 are arranged in a matched mode and used for carrying out a shearing force loading experiment on the tested flexible device.

When a shearing experiment is carried out on the tested flexible device, the third clamping part 231 and the fourth clamping part 431 are fixed to the first clamping part and the second clamping part respectively, so that the clamping surfaces of the third clamping part 231 and the fourth clamping part 431 are flush with the first clamping part and the second clamping part respectively; then fixing the opposite first and second ends of the tested flexible device along the width direction (the direction perpendicular to the first axis) to the third clamping part 231 and the fourth clamping part 431; then the first driving device 60 and the second driving device 70 are used for controlling the combined movement of the first movement block 20, the third movement block 30 and the second movement block 40 to a position which enables the tested flexible device to be laid flat but not subjected to shearing force; then, the second driving device 70 is used for controlling the third motion block 30 and the second motion block 40 to move according to the input loading displacement, so that the loading of the shearing force is realized, and the mechanical property measuring device 50 is used for reading the magnitude of the shearing force in real time in the loading process.

The linear displacement of the first motion block 20 and the second motion block 40 is controlled by using the linear displacement as the input quantity, and the mechanical property measuring device 50 is used to realize the real-time measurement of the mechanical property of the flexible device when loading, which can be understood in other embodiments of the present invention, the mechanical property of the flexible device can also be used as the input quantity to control the linear displacement of the first motion block 20 and the second motion block 40. In this control method, after the tested flexible device is fixed by the third clamping part 231 and the fourth clamping part 431, the general control module uses the first driving device 60 and the second driving device 70 to control the linear motion of the first motion block 20 and the second motion block 40 to the position where the flexible device is tiled but not subjected to external force according to the input motion displacement, then, the general control module calculates the linear displacement of the first motion block 20 and/or the second motion block 40 according to the mechanical property of the input flexible device, uses the first driving device 60 and/or the second driving device 70 to control the linear motion of the first motion block 20 and/or the second motion block 40, during the motion process, the feedback result of the first linear displacement sensing device 13 and/or the second linear displacement sensing device 14 can be used to adjust the linear displacement increment of the first motion block 20 and/or the second motion block 40, and the flexible device is accurately loaded.

Third embodiment

The third embodiment is further improved on the basis of the first embodiment, and if not specifically described, the structure of the multifunctional flexible device reliability test platform in the third embodiment is the same as that of the corresponding part of the multifunctional flexible device reliability test platform in the first embodiment.

As shown in fig. 6 and 7, in the third embodiment, the support 80 is not provided on the base 10 near the second driving device 70, but on the first moving block 20. The detailed structure is the same as that of the bracket in the first embodiment, and it also includes a support arm 81 and a third chuck 82 provided below the support arm 81.

Fourth embodiment

The fourth embodiment is further improved on the basis of the first and second embodiments, and if not specifically described, the structure of the multifunctional flexible device reliability test platform in the fourth embodiment is the same as that of the corresponding portion of the multifunctional flexible device reliability test platform in the first and second embodiments.

As shown in fig. 8 and 9, in the fourth embodiment, at least one of the upper surface of the first main plate of the first chuck 23 and the upper surface of the second main plate of the second chuck 43, and/or at least one of the lower surface of the third main plate of the third chuck 82 and the upper surface of the fourth main plate of the fourth chuck 49, and/or at least one of the upper surface of the fifth main plate of the third clamping portion 231 and the upper surface of the sixth main plate of the fourth clamping portion 431 are provided with a plurality of grooves arranged side by side, in which metal pins 234 are provided, in addition, a flexible flat cable is provided for signal connection with the metal pins 234 and the electrical performance measuring device, the device is used for connecting the metal joint on the tested flexible device and the electrical property measuring device to realize the test of the electrical properties (voltage, resistance and capacitance) of the tested flexible device during stretching, compression, bending and shearing. Further, the general control device further comprises an electrical module in signal connection with the electrical property measuring device, and the electrical module can receive the measurement result of the electrical property, feed the measurement result of the electrical property back to a display device, or control the servo control device to drive the first moving block 20, the second moving block 40 and the third moving block 30 according to the electrical property of the flexible device. It is understood that in other embodiments of the present invention, instead of providing the grooves and the metal pins 234 in the interior of each of the chucks, the chucks with the grooves and the metal pins 234 may be directly used to replace the chucks when performing electrical testing.

When an electrical test experiment is carried out on a tested flexible device, the master control module can control the combined motion of the first motion block 20, the third motion block 30 and the second motion block 40 to a position where the flexible device is tiled but external force is not applied to the flexible device by using the first driving device 60 and the second driving device 70 according to input motion displacement, and in the motion process, the operation conditions of the first driving device 60 and the second driving device 70 are controlled according to a linear displacement feedback result, so that the accurate control of the displacement of the first motion block 20, the third motion block 30 and the second motion block 40 is realized; then, the master control module controls the first motion block 20 and/or the third motion block 30 and the second motion block 40 to move linearly by using the first driving device 60 and/or the second driving device 70 according to the input loading displacement, and during the movement, controls the operation condition of the first driving device 60 and/or the second driving device 70 according to the feedback result of the linear displacement to load the flexible device, and during the loading, the electrical performance measuring device is used for reading the electrical performance of the flexible device in different states in real time to evaluate the electrical performance stability of the flexible device in different states.

It is understood that in other embodiments of the present invention, the electrical property of the flexible device can be used as an input to control the linear displacement of the first motion block 20 and the second motion block 40. In this control manner, the general control module controls the first motion block 20 and the second motion block 40 to move linearly to a position where the flexible device is tiled but not subjected to an external force by using the first driving device 60 and the second driving device 70 according to the input motion displacement, then calculates the linear displacement of the first motion block 20 and/or the second motion block 40 according to the input electrical performance of the flexible device by using the electrical module, controls the linear motion of the first motion block 20 and/or the second motion block 40 by using the first driving device 60 and/or the second driving device 70, and adjusts the linear displacement increment of the first motion block 20 and the second motion block 40 by using the feedback result of the first linear displacement sensing device 13 and the second linear displacement sensing device 14 during the movement process, thereby realizing the precise evaluation of the electrical performance of the flexible device.

Fifth embodiment

The fifth embodiment is further improved on the basis of the first to fourth embodiments, and if not specifically described, the structure of the multifunctional flexible device reliability test platform in the fifth embodiment is the same as that of the corresponding portion of the multifunctional flexible device reliability test platform in the first to fourth embodiments.

As shown in fig. 10, in the fifth embodiment, the utility model discloses a multi-functional flexible device reliability test platform is still including locating optical lens 90 between first chuck 23 and the second chuck 43, and this optical lens 90 utilizes bracing piece 91 to fix to base 10 on, and extends first chuck 23 and second chuck 43 top to when carrying out mechanics and electrical test to being surveyed the flexible device, the condition of being surveyed the flexible device is observed, shot (shooing or video recording), the later stage of being convenient for is analyzed and is improved the performance of being surveyed the flexible device.

Sixth embodiment

The sixth embodiment is further improved on the basis of the first to fifth embodiments, and the structure of the multifunctional flexible device reliability test platform in the sixth embodiment is the same as that of the corresponding portion of the multifunctional flexible device reliability test platform in the first to fifth embodiments, unless otherwise specified.

As shown in fig. 11, in the sixth embodiment, the utility model discloses a multi-functional flexible device reliability test platform is still including locating environment box 100 between first chuck 23 and the second chuck 43, and this environment box 100 can hold when testing and is surveyed flexible device, makes temperature, humidity etc. of being surveyed flexible device keep in the condition that needs, carries out mechanics and electrical properties under the specific humiture condition and measures.

Can learn through the statement above, the utility model provides a multi-functional flexible device reliability test platform can realize being surveyed the quantitative measurement of flexible device mechanical properties under multiple state on a equipment, can also realize being surveyed the electrical properties measurement of flexible device under states such as tensile, compression, shearing, bending, perhaps surveyed the synchronous measurement of mechanical and electrical properties of flexible device under states such as tensile, compression, shearing, bending, all have very important effect to the detection of flexible electron device and the design guidance of flexible electron device product.

Further, the utility model discloses utilize the displacement of high accuracy linear displacement sensing device sensing first motion piece, and third motion piece and second motion piece, utilize first drive arrangement and second drive arrangement according to linear displacement sensing device's sensing signal closed-loop control first motion piece, and third motion piece and second motion piece, can realize the accurate control of first motion piece, and third motion piece and second motion piece; the utility model discloses still utilize the turned angle of first chuck of first angular displacement sensing device and second angular displacement sensing device sensing and second chuck, utilize third drive arrangement and fourth drive arrangement according to the first chuck of signal closed-loop control and the second chuck of first angular displacement sensing device and second angular displacement sensing device, can realize the accurate control of first chuck and second chuck turned angle to can realize the accurate measurement of flexible device mechanical properties and electrical property.

Further, the utility model discloses utilize mechanical properties measuring device to read the mechanical properties of flexible device in flexible device deformation process in real time, and the motion of the first motion piece of mechanical properties control servo control device drive and the second motion piece of usable mechanics module according to the flexible device realizes that mechanical properties and the accurate of motion piece displacement correspond, lays the basis for accurate measurement and the aassessment of flexible device mechanical properties.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including not only those elements listed, but also other elements not expressly listed.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a multi-functional flexible device reliability test platform which characterized in that, it includes first motion piece (20), second motion piece (40), third motion piece (30) and mechanical properties measuring device (50), first motion piece (20) with second motion piece (40) are used for fixed flexible device's first end and second end respectively, and can follow a first axis linear motion, third motion piece (30) with second motion piece (40) pass through mechanical properties measuring device connects, and can drive second motion piece (40) follow first axis linear motion.

2. The multi-functional flexible device reliability testing platform of claim 1, further comprising servo control means, the servo control device comprises a first driving device (60) for driving the first motion block (20) to move linearly, a second driving device (70) for driving the second motion block (40) to move linearly, and a linear displacement sensing device for sensing the linear displacement of the first motion block (20) and the second motion block (40), the first driving device (60) and the second driving device (70) control the first motion block (20) and the second motion block (40) to move linearly according to a signal of a general control device, and adjusting the linear displacement increment of the first motion block (20) and the second motion block (40) according to the feedback result of the linear displacement sensing device.

3. The multi-functional flexible device reliability testing platform according to claim 2, wherein a first chuck (23) is disposed on the first motion block (20), a second chuck (43) is disposed on the second motion block (40), the first end and the second end are disposed opposite to each other along the direction of the first axis, the first chuck (23) includes a first clamping portion for fixing the first end of the flexible device, and the second chuck (43) includes a second clamping portion for fixing the second end of the flexible device.

4. The multi-functional flexible device reliability testing platform according to claim 2, wherein a first collet (23) is disposed on the first motion block (20), a second collet (43) is disposed on the second motion block (40), the first end and the second end are oppositely disposed along a direction perpendicular to the first axis, the first collet (23) comprises a third clamping portion (231) for fixing the first end of the flexible device, and the second collet (43) comprises a fourth clamping portion (431) for fixing the second end of the flexible device.

5. The platform of claim 3, wherein the servo control device comprises a third driving device (21) for driving the first chuck (23) to rotate, a fourth driving device (41) for driving the second chuck (43) to rotate, and an angular displacement sensing device for sensing the angular displacement of the first chuck (23) and the second chuck (43), the third driving device (21) and the fourth driving device (41) control the rotation of the first chuck (23) and the second chuck (43) according to the signal of the general control device, and adjust the angular displacement increment of the first chuck (23) and the second chuck (43) according to the feedback result of the angular displacement sensing device.

6. The platform for testing the reliability of the multifunctional flexible device according to claim 3, further comprising a support (80), wherein a support cantilever (81) extending above the second motion block (40) is disposed on the support (80), a third chuck (82) is disposed below the support cantilever (81), and a fourth chuck (49) used in cooperation with the third chuck (82) is disposed above the second motion block (40).

7. The platform of claim 6, further comprising an electrical property measuring device for measuring an electrical property of the flexible device, wherein at least one of the first and second clips (23, 43) and/or at least one of the third and fourth clips (82, 49) is in signal connection with the electrical property measuring device.

8. The platform for testing reliability of multifunctional flexible devices as claimed in claim 7, wherein the general control device comprises a mechanical module in signal connection with the mechanical property measuring device and/or an electrical module in signal connection with the electrical property measuring device, the mechanical module controls the first driving device (60) and the second driving device (70) according to the signal transmitted by the mechanical property measuring device, and the electrical module controls the first driving device (60) and the second driving device (70) according to the signal transmitted by the electrical property measuring device.

9. The multi-functional flexible device reliability testing platform of claim 1, further comprising an optical lens (90), the optical lens (90) extending above the first kinematic block (20) and the second kinematic block (40).

10. The multi-functional flexible device reliability testing platform of claim 1, further comprising an environmental chamber (100) disposed between the first kinematic block (20) and the second kinematic block (40).