Reliability test fixture

Abstract

The application relates to a reliability test fixture for testing the reliability of a flexible module, comprising a support frame, a fixing assembly for fixing the flexible module, which is fixed to the support frame, the fixing assembly comprising fixing plates, movable plates and a rotating shaft and a recovery plate arranged in parallel, the recovery plate being arranged at an angle with the fixing plates, one end of the fixing plates being provided with the rotating shaft, and the rotating shaft being located between the fixing plates and the recovery plate, the movable plates being capable of moving in a first direction relative to the fixing plates, and the recovery plate being capable of moving in a second direction, so that the flexible module is converted between an unfolded state and a rolled-up state, the first direction being parallel to the direction from the rotating shaft to the fixing plates, and the second direction being parallel to the direction from the rotating shaft to the recovery plate; an adjusting structure connected with the recovery plate, used for providing different forces in the second direction to the recovery plate, so that the recovery plate moves in the direction away from the rotating shaft, to adjust the flatness of the part of the flexible module fixed to the fixing plates and the movable plates.

Description

Technical Field

[0001] This invention relates to the field of display product manufacturing technology, and in particular to a reliability testing fixture for testing the reliability of flexible modules. Background Technology

[0002] Due to its unique structure, flexible screens can transform from small to large screens through lifting and lowering. However, because the overall manufacturing cost of the flexible module is high and the manufacturing cycle is long, the reliability evaluation of the flexible module is very important. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention provides a reliability testing fixture to solve the reliability testing problem of flexible modules.

[0004] To achieve the above objectives, the technical solution adopted in this embodiment of the invention is: a reliability testing fixture for testing the reliability of flexible modules, comprising:

[0005] Support frame;

[0006] A fixing component for securing the flexible module is fixed to the support frame. The fixing component includes a fixed plate, a movable plate, a rotating shaft, and a retractable plate arranged in parallel. The retractable plate is angled relative to the fixed plate. A rotating shaft is provided at one end of the fixed plate and is located between the fixed plate and the retractable plate. The movable plate is movable relative to the fixed plate in a first direction, and the retractable plate is movable in a second direction. The fixed plate, the movable plate, and the retractable plate cooperate to allow the flexible module to switch between an unfolded state and a retracted state. The first direction is parallel to the direction from the rotating shaft to the fixed plate, and the second direction is parallel to the direction from the rotating shaft to the retractable plate.

[0007] An adjustment structure, connected to the recycling plate, is used to provide different forces to the recycling plate in the second direction, causing the recycling plate to move away from the rotating axis, thereby adjusting the flatness of the portion of the flexible module fixed to the fixed plate and the movable plate.

[0008] Optionally, the adjustment structure includes an adjustment part, a traction rope, and a first connecting shaft:

[0009] The first connecting shaft is fixed to the support frame, and in the second direction, the first connecting shaft is located on the side of the recovery plate away from the rotating shaft. One end of the traction rope is connected to the recovery plate, and the other end of the traction rope passes around the first connecting shaft and is connected to the adjustment part.

[0010] Optionally, the adjustment unit includes:

[0011] A pressure plate is disposed on the side of the movable plate away from the fixed plate, and the extending direction of the pressure plate is parallel to the side of the movable plate away from the fixed plate. The pressure plate is provided with a movable pressing part, and one end of the traction rope passes through the movable pressing part and the pressure plate and is connected to the movable plate.

[0012] At least one spring is connected to the side of the pressure plate away from the movable plate. The elastic deformation direction of the spring is perpendicular to the extension direction of the pressure plate and parallel to the fixing surface of the movable plate used to fix the flexible module.

[0013] At least one adjusting cylinder is sleeved on the outside of the corresponding spring. One end of the adjusting cylinder is fixed to the end of the movable plate away from the rotating shaft. A strip-shaped hole is provided on the side wall of the adjusting cylinder. The extending direction of the strip-shaped hole is parallel to the extending direction of the spring.

[0014] At least one adjusting baffle is disposed at the end of the corresponding adjusting cylinder away from the pressure plate. The adjusting baffle is provided with a mounting screw hole and an adjusting screw hole. The mounting screw hole is for a mounting bolt to pass through to fix the adjusting baffle to the corresponding adjusting cylinder. The adjusting screw hole is for an adjusting bolt to pass through. One end of the adjusting bolt is screwed into the adjusting screw hole and connected to the corresponding spring.

[0015] Optionally, the adjusting part further includes at least one guide post, one end of which is fixed to the pressure plate, and the other end of which is inserted into the interior of the corresponding spring.

[0016] Optionally, the adjustment part further includes a limiting block, which in the first direction includes a body fixed to one end of the movable plate away from the fixed plate, and at least a portion of the body extends toward the pressure plate to form a limiting plate covering the pressure plate.

[0017] Optionally, the adjustment structure further includes a second connecting shaft. In the first direction, the second connecting shaft is fixed to the end of the movable plate away from the fixed plate, and the second connecting shaft is located on the side of the pressure plate away from the movable plate. One end of the traction rope passes around the second connecting shaft, passes between the pressing part and the pressure plate, and is connected to the movable plate.

[0018] Optionally, in the first direction, the distance between the second connecting shaft and the movable plate is greater than the width of the pressure plate in the first direction.

[0019] Optionally, the adjustment structure includes a coil spring structure, the coil spring structure including a coil spring body, one end of the coil spring body being connected to the recovery plate.

[0020] Optionally, the support frame includes a first support rod and a second support rod. The first support rod is fixedly connected to the fixed plate, one end of the second support rod is connected to one end of the first support rod, and the angle between the first support rod and the second support rod is less than or equal to 90 degrees. A first slide rail that is slidably connected to the recycling plate is provided on one side of the second support rod.

[0021] Optionally, a reinforcing support plate is provided between the first support rod and the second support rod.

[0022] Optionally, the fixing plate is provided with a first comb tooth portion and a first sliding connection portion, the first comb tooth portion is provided with a first comb tooth, and the first sliding connection portion is provided with a first slide rail extending along the first direction;

[0023] The movable plate is provided with a second comb tooth section and a second sliding connection section. The second comb tooth section is provided with a second comb tooth. The first comb tooth and the second comb tooth mesh with each other, and the comb tooth surfaces of the first comb tooth and the second comb tooth are located on the same plane. The second sliding connection section is provided with a slider that is slidably connected to the first slide rail.

[0024] The beneficial effects of this invention are: the test fixture of this invention can complete the reliability test of flexible modules more quickly and efficiently, which will greatly shorten the development cycle and reduce the development risk. Attached Figure Description

[0025] Figure 1 A schematic diagram illustrating the reliability fixture in an embodiment of the present invention. Figure 1 ;

[0026] Figure 2 A schematic diagram illustrating the reliability fixture in an embodiment of the present invention. Figure 2 ;

[0027] Figure 3 A schematic diagram illustrating the adjustment structure in an embodiment of the present invention. Figure 1 ;

[0028] Figure 4 This diagram illustrates the connection between the spring and the guide post in an embodiment of the present invention.

[0029] Figure 5 A schematic diagram showing the adjustment unit in an embodiment of the present invention;

[0030] Figure 6 A schematic diagram illustrating the reliability fixture in an embodiment of the present invention. Figure 3 ;

[0031] Figure 7 A schematic diagram illustrating the reliability fixture in an embodiment of the present invention. Figure 4 ;

[0032] Figure 8 A schematic diagram illustrating the adjustment structure in an embodiment of the present invention. Figure 2 ;

[0033] Figure 9 A schematic diagram illustrating the reliability fixture in an embodiment of the present invention. Figure 5 . Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0035] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an,” “a,” or “the,” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “including,” “comprising,” or “containing,” and similar terms mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. The terms “connected,” “linked,” or similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms “upper,” “lower,” “left,” and “right,” etc., are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0036] like Figures 1-9 As shown, this embodiment provides a reliability testing fixture for testing the reliability of a flexible module 100, including:

[0037] Support frame;

[0038] A fixing assembly for securing the flexible module 100 is fixed to the support frame. The fixing assembly includes a fixed plate 11 and a movable plate 12 arranged parallel to each other, and a retraction plate 14 located at the end of the fixed plate 11 away from the movable plate 12. The retraction plate 14 is angled relative to the fixed plate 11. A pivot 13 is provided between the fixed plate 11 and the retraction plate 14. The movable plate 12 is rotatable relative to the fixed plate 11 in a first direction (reference). Figure 1 The recovery plate 14 can move in the X direction (referring to the second direction) and is capable of moving in the second direction (referring to the X direction). Figure 1 The flexible module 100 moves in the Y direction, and the fixed plate 11, the movable plate 12 and the retractable plate 14 cooperate to switch between the unfolded state and the retracted state. The first direction is parallel to the direction from the rotating shaft 13 to the fixed plate 11, and the second direction is parallel to the direction from the rotating shaft 13 to the retractable plate 14.

[0039] An adjustment structure, connected to the recycling plate 14, is used to provide different forces to the recycling plate 14 in the second direction, causing the recycling plate 14 to move away from the rotating shaft 13, so as to adjust the flatness of the portion of the flexible module 100 fixed to the fixed plate 11 and the movable plate 12.

[0040] Figure 6 A schematic diagram showing the movable plate 12 moving towards the rotating shaft 13, so that the flexible module is in a winding state; Figure 7 This is a schematic diagram showing the flexible module in an unfolded state as the movable plate 12 moves away from the rotating shaft 13.

[0041] When testing the reliability of the flexible module 100 using the reliability fixture in this embodiment, one end of the flexible module 100 is fixed to the movable plate 12, and the other end of the flexible module 100 is fixed to the retraction plate 14 after passing through the fixed plate 11 and the rotating shaft 13. The movable plate 12 can move relative to the fixed plate 11 in the first direction, and the retraction plate 14 can move towards or away from the rotating shaft 13 in the second direction. Under the combined action of the fixed plate 11, the movable plate 12, and the retraction plate 14, the flexible module 100 can switch between the unfolded state and the retracted state, thereby realizing the reliability test of the flexible module 100.

[0042] In an exemplary embodiment, the fixing plate 11 is provided with a first comb tooth portion and a first sliding connection portion. The first comb tooth portion is provided with a first comb tooth, and the first sliding connection portion is provided with a first slide rail 121 extending along the first direction.

[0043] The movable plate 12 is provided with a second comb tooth portion and a second sliding connection portion. The second comb tooth portion is provided with a second comb tooth. The first comb tooth and the second comb tooth mesh with each other, and the comb tooth surface of the first comb tooth and the comb tooth surface of the second comb tooth are located on the same plane. The second sliding connection portion is provided with a slider that is slidably connected to the first slide rail 121.

[0044] When the flexible module 100 is in the winding state, the orthographic projection of the second sliding connection portion on the fixed plate 11 is located on the first sliding connection portion. The second comb tooth is inserted into the gap between two adjacent first comb teeth. The movable plate 12 moves away from the first comb tooth portion along the first direction, so that when the flexible module 100 is in the unfolded state, the first comb tooth and the second comb tooth move in opposite directions. The movable plate 12 and the fixed plate 11 jointly support the flexible module 100, avoiding any unsupported areas in the flexible module 100 that would affect the flatness of the flexible module 100.

[0045] refer to Figure 2 For example, the fixing plate 11 is provided with a hollow structure 101 to reduce weight and lower cost.

[0046] The hollow structure 101 can be provided only on the first sliding connection part to avoid affecting the setting of the first comb teeth.

[0047] The hollow structure 101 can be at least one through hole, but is not limited to this.

[0048] It should be noted that a limiting structure is provided on one of the first comb teeth and the second comb teeth to prevent the first comb teeth and the second comb teeth from separating, so that the fixed plate 11 and the movable plate 12 have a gap in the first direction, resulting in an unsupported area in the flexible module 100.

[0049] For example, the limiting structure may be a groove provided on the side of one of the first comb teeth and the second comb teeth. For example, the first comb tooth portion includes a plurality of first comb teeth spaced apart in a third direction. In the third direction, grooves are provided on opposite sides of each first comb tooth, and the corresponding second comb tooth is slidably connected in the groove. The third direction is perpendicular to the first direction and is parallel to the movable plate 12.

[0050] In an exemplary embodiment, the movable plate 12 can be slidably connected to the support frame, that is, both the fixed plate 11 and the movable plate 12 are fixed to the support frame. In the first direction, the fixed plate 11 includes a first part and a first comb tooth part, the first comb tooth part including a first comb tooth. The movable plate 12 includes a second part and a second comb tooth part, the second comb tooth part including a second comb tooth. The first comb tooth and the second comb tooth mesh with each other, and the surface of the fixed plate 11 and the surface of the movable plate 12 are located on the same plane.

[0051] For example, in an embodiment where the movable plate 12 can be slidably connected to the support frame, that is, both the fixed plate 11 and the movable plate 12 are fixed to the support frame, in order to ensure that the fixed plate 11 and the movable plate 12 are located on the same plane, a groove extending along the first direction can be formed in the support frame, and the movable plate 12 is slidably connected to the groove by a slider.

[0052] It should be noted that the movement of the movable plate 12 can be driven by a motor, but is not limited to this. In the third direction, driving holes are provided on opposite sides of the movable plate 12, and a transmission rod is connected in the driving hole to drive the movable plate 12 to move.

[0053] It should be noted that during testing, the recycling plate 14 can be set parallel to the horizontal plane, that is, the second direction is set parallel to the horizontal plane, and the first direction is set at an angle to the first direction. In this way, the movable plate 12 moves relative to the fixed plate 11 in the first direction, which can realize the conversion between the flexible module 100 and the winding state, thereby realizing the reliability test of the flexible module 100.

[0054] It should be noted that the angle between the first direction and the second direction can be set according to actual needs, thereby enabling testing of the flexible module 100 under different stress states, thus providing a more comprehensive reliability test.

[0055] For example, the angle between the first direction and the second direction is less than or equal to 90 degrees, and the angle between the first direction and the second direction is greater than or equal to zero degrees, but is not limited thereto.

[0056] The angle between the first direction and the second direction can be adjusted by adjusting the support frame.

[0057] In an exemplary embodiment, the support frame includes a first support rod 31 and a second support rod 32. The first support rod 31 is fixedly connected to the fixed plate 11. One end of the second support rod 32 is connected to one end of the first support rod 31, and the angle between the first support rod 31 and the second support rod 32 is less than or equal to 90 degrees. A first slide rail 121 that is slidably connected to the recycling plate 14 is provided on one side of the second support rod 32.

[0058] For example, the first support rod 31 and the second support rod 32 can be fixedly connected, thereby increasing the stability of the support frame. Furthermore, to increase the testing of the flexible module 100 in different states, i.e., to find that the angles between the first direction and the second direction are different, this can be achieved by replacing the first support rod 31 and the second support rod 32 with different angle settings.

[0059] It should be noted that, in order to increase the connection stability between the first support rod 31 and the second support rod 32, a reinforcing plate 33 is provided between the first support rod 31 and the second support rod 32.

[0060] The reinforcing plate 33 can be a triangular plate. One side of the reinforcing plate 33 is parallel to the first support rod 31 and is fixedly connected to the first support rod 31. Another side of the reinforcing plate 33 is parallel to the second support rod 32 and is fixedly connected to the second support rod 32.

[0061] For example, the first support rod 31 and the second support rod 32 can also be connected in a movable manner. For instance, a telescopic rod is provided between the first support rod 31 and the second support rod 32. The angle between the first support rod 31 and the second support rod 32 can be adjusted by adjusting the length of the telescopic rod, thereby enabling the reliability test of the flexible module 100 to be completed more quickly without replacing the support frame, thus improving efficiency and reducing costs.

[0062] It should be noted that the telescopic rod is designed for stepped adjustment. In some embodiments, a cylinder can be installed between the first support rod 31 and the second support rod 32 to achieve stepless adjustment of the angle between the first support rod 31 and the second support rod 32, making the reliability test of the flexible module 100 more flexible.

[0063] It should be noted that the support frame may include at least one set of support rods, each set of support rods including the first support rod 31 and the second support rod 32. The specific number of support rods can be set according to actual needs. For example, the support frame may include three sets of support rods arranged at intervals, but it is not limited to this.

[0064] It should be noted that when the support frame includes at least two sets of support rods, at least some of the second support rods 32 in the support rod sets are provided with second slide rails 141 for movably connecting with the recycling plate 14. For example, when the support frame includes three sets of support rods, the second support rods 32 on the two support rod sets located at the edge are provided with second slide rails 141 to ensure that the recycling plate 14 is subjected to balanced forces and moves smoothly, but this is not a limitation.

[0065] For example, the side 1401 of the recycling plate 14 near the rotating shaft 13 has an inclined structure, as shown in the reference. Figure 7 The recycling plate 14 is used to fix one side of the flexible module 100 to be tangent to the outer peripheral surface of the rotating shaft 13, so that the moving distance of the movable plate 12 reaches the maximum moving distance and the flexible module 100 has the maximum display area after unfolding. The side 1401 of the recycling plate 14 near the rotating shaft 13 is a sloping structure to avoid interference between the recycling plate 14 and the rotating shaft 13.

[0066] For example, in a direction perpendicular to the fixed plate 11, the rotating shaft 13 has a tangent point located away from the support frame. The tangent plane through this tangent point is lower than the comb tooth surface of the first comb tooth of the fixed plate 11 (i.e., in a direction perpendicular to the fixed plate 11, the tangent plane through this tangent point is located on the side of the fixed plate 11 closer to the support frame), or the tangent plane through this tangent point is flush with the comb tooth surface of the first comb tooth of the fixed plate 11. This effectively reduces the arching of the portion of the flexible module 100 that bypasses the rotating shaft 13 and is located on the side of the rotating shaft 13 away from the fixed plate 11.

[0067] It should be noted that when the flexible module 100 is lowered into a retracted state, a portion of the flexible module 100 will be retracted below the fixed plate 11 (i.e., around the pivot 13 and located on the side of the pivot 13 away from the fixed plate 11). Due to the rebound force and gravity of the flexible module 100, the flexible module 100 will be arched. Therefore, in some embodiments, a protective plate 4 is provided on the side of the retractable plate 14 away from the support frame in a direction perpendicular to the retractable plate 14. When the flexible module 100 is fixed to the fixed assembly for reliability testing, the distance between the protective plate 4 and the flexible module 100 in a direction perpendicular to the retractable plate 14 is 0.2-0.5 mm to effectively prevent the flexible module 100 from warping.

[0068] For example, a gasket is provided on the side of the protective plate 4 near the recycling plate 14. The distance between the protective plate 4 and the cover layer of the flexible module 100 (i.e., the film layer on the side of the flexible module 100 facing the pressure plate 51) can be adjusted by the number of gaskets or the thickness of the gaskets to accommodate flexible modules 100 of different thicknesses.

[0069] For example, the protective plate 4 can be fixed to the support frame.

[0070] For example, the protective plate 4 is attached or coated with an anti-friction material to form a smooth coating on the side facing the recycling plate 14 to avoid damage to the flexible module 100.

[0071] For example, the smooth coating is made of Teflon, but is not limited thereto.

[0072] In this embodiment, by setting the adjustment structure, different tensile forces can be applied to the recycling plate 14, thereby applying different magnitudes of force to the flexible module 100, so that the flexible module 100 obtains better flatness. After removing the flexible module 100, the magnitude of the force when the flexible module 100 has good flatness can be obtained by using a tension gauge, providing design suggestions for the required values ​​of the whole machine structure, and reducing the module reliability evaluation cost.

[0073] In an exemplary embodiment, the adjustment structure includes an adjustment part, a traction rope 21, and a first connecting shaft 22:

[0074] The first connecting shaft 22 is fixed to the support frame, and in the second direction, the first connecting shaft 22 is located on the side of the recovery plate 14 away from the rotating shaft 13. One end of the traction rope 21 is connected to the recovery plate 14, and the other end of the traction rope 21 passes around the adjustment part and is connected.

[0075] The first connecting shaft 22 is configured such that the extension direction of the portion of the traction rope 21 located between the recovery plate 14 and the first connecting shaft 22 is parallel to the second direction, ensuring that the direction of the force on the recovery plate 14 is parallel to the second direction.

[0076] The adjustment unit is used to provide different magnitudes of force to the recovery plate 14 through the traction rope 21 so that the flexible module 100 can obtain better flatness (here mainly refers to the part of the flexible module 100 supported on the fixed plate 11 and the movable plate 12 having better flatness).

[0077] refer to Figures 3-5 In an exemplary embodiment, the adjustment unit includes:

[0078] A pressure plate 51 is disposed on the side of the movable plate 12 away from the fixed plate 11, and the extending direction of the pressure plate 51 is parallel to the side of the movable plate 12 away from the fixed plate 11. A movable pressing part 502 is provided on the pressure plate 51. One end of the traction rope 21 passes through the movable pressing part 502 and the pressure plate 51 and is connected to the movable plate 12.

[0079] At least one spring 54 is connected to the side of the pressure plate 51 away from the movable plate 12. The elastic deformation direction of the spring 54 is perpendicular to the extension direction of the pressure plate 51 and parallel to the fixing surface of the movable plate 12 used to fix the flexible module 100.

[0080] At least one adjusting cylinder 53 corresponding to at least one of the springs 54, each adjusting cylinder 53 being sleeved on the outside of the corresponding spring, one end of the adjusting cylinder 53 being fixed to the end of the movable plate away from the rotating shaft, and a strip-shaped hole being provided on the side wall of the adjusting cylinder 53, the extending direction of the strip-shaped hole being parallel to the extending direction of the spring;

[0081] At least one adjusting baffle 501 corresponding to at least one of the springs 54, each adjusting baffle 501 being disposed at the end of the corresponding adjusting cylinder 53 away from the pressure plate. The adjusting baffle 501 is provided with a mounting screw hole 5012 and an adjusting screw hole 5011. The mounting screw hole 5012 is for a mounting bolt to pass through to fix the adjusting baffle 501 to the corresponding adjusting cylinder 53. The adjusting screw hole 5011 is for an adjusting bolt 511 to pass through. One end of the adjusting bolt 511 is screwed into the adjusting screw hole and connected to the corresponding spring 54.

[0082] The number of springs 54 can be set according to actual needs. For example, the adjustment part may include three springs 54, but it is not limited to this.

[0083] The movable pressing part 502 can press and fix the traction rope 21 onto the pressure plate 51 so that the traction rope 21 is in a tensioned state. Then, different pressures are applied to at least one spring 54 to adjust the compression of at least one spring 54, thereby transmitting different tensions to the traction rope 21 through the pressure plate 51.

[0084] For example, the movable pressing part 502 may include a pressing strip and fixing bolts at both ends in the extending direction of the pressing strip, and the pressing plate 51 is provided with fixing holes for the fixing bolts to pass through.

[0085] It should be noted that, in the first direction, a receiving groove 1011 is provided on the end face of the movable plate 12 away from the rotating shaft 13, for reference. Figure 9 The receiving groove 1011 is formed by a partial recess in the side of the movable plate 12 away from the rotating shaft 13. The receiving groove 1011 can penetrate the first surface of the movable plate 12 (the surface used to fix the flexible module) in the thickness direction of the movable plate 12. When the traction rope 21 is not fixed or the traction rope 21 is in a slack state, the spring 54 presses the pressure plate 51 into the receiving groove 1011. When testing the flexible module, the pressure plate 51 moves out of the receiving groove 1011, so that there is a moving space between the pressure plate 51 and the movable plate 12 for the pressure plate 51 to move in the first direction. This allows the tension of the traction rope 21 to be adjusted by adjusting the magnitude of the spring force after the traction rope 21 is fixed by the movable pressing part 502.

[0086] It should be noted that, in the third direction (Z direction) perpendicular to the first direction (X direction), the adjusting part includes three adjusting cylinders 53 spaced apart. The middle adjusting cylinder 53 has strip-shaped holes on both sides in the Z direction, which communicate with the interior of the adjusting cylinder 53, allowing the pressure plate 51 to pass through it. In the Z direction, the two edge adjusting cylinders 53 have strip-shaped holes on their sides facing the middle adjusting cylinder 53, allowing the pressure plate 51 to move along these holes in the first direction. The sides of the two edge adjusting cylinders 53 away from the middle adjusting cylinder 53 are closed, limiting the pressure plate in the Z direction. (Refer to...) Figure 9 .

[0087] refer to Figure 4 For example, the adjusting part further includes at least one guide post 55, one end of which is fixed to the pressure plate 51, and the other end of which is inserted into the interior of the corresponding spring.

[0088] The guide post 55 can prevent the spring 54 from shifting.

[0089] For example, the adjusting baffle 501 is provided with a mounting screw hole 5012 and an adjusting screw hole 5011. The mounting screw hole 5012 is used for a mounting bolt to pass through in order to fix the adjusting baffle 501 to the guide post 55. The adjusting screw hole 5011 is used for an adjusting bolt to pass through. One end of the adjusting bolt is screwed into the adjusting screw hole 5011 and connected to the corresponding spring 54.

[0090] Simply rotating the adjusting bolt compresses the spring 54, thereby transmitting tension to the traction rope 21 via the pressure plate 51, and further providing tension to the recovery plate 14 to ensure the flatness of the flexible module 100. Reversing the rotation of the adjusting bolt returns the spring 54 to its original position; the process is simple and easy to operate.

[0091] For example, the adjustment part further includes a limiting block. In the first direction, the limiting block 7 includes a body 71 fixed to one end of the movable plate 12 away from the fixed plate 11. At least a portion of the body 71 extends toward the pressure plate 51 to form a limiting plate covering the pressure plate 51.

[0092] The limiting block 7 prevents the pressure plate 51 from shifting in the direction perpendicular to the movable plate 12, thus ensuring the application of force to the traction rope 21.

[0093] The number of the limiting blocks 7 can be set according to actual needs, such as 3, but is not limited to this.

[0094] It should be noted that, in the first direction, the length of the limiting plate 72 is greater than the width of the pressure plate 51, such that the limiting plate 72 at least covers a portion of the pressure plate 51.

[0095] refer to Figure 3 and 9 The exemplary body 71 is a fixed plate, which and the limiting plate 72 are L-shaped. The body 71 is connected to the movable plate 12 and is fixed to the first side wall of the receiving groove (the first side wall is parallel to the thickness direction of the movable plate 12). In the first direction, the limiting plate 72 extends away from the movable plate 12 to at least cover the receiving groove 1011. In some embodiments, in the first direction, the width of the limiting plate 72 is greater than the sum of the width of the receiving groove 1011 and the width of the pressure plate 51, so that after the pressure plate 51 is removed from the receiving groove 1011, it still covers the pressure plate 51 to limit the pressure plate 51 in the second direction.

[0096] For example, the adjustment structure further includes a second connecting shaft 23. In the first direction, the second connecting shaft 23 is fixed to one end of the movable plate 12 away from the fixed plate 11, and the second connecting shaft 23 is located on the side of the pressure plate 51 away from the movable plate 12. One end of the traction rope 21 passes around the second connecting shaft 23, passes between the pressing part 502 and the pressure plate 51, and is connected to the movable plate 12.

[0097] It should be noted that one end of the traction rope 21 passes around the first connecting shaft 22 and connects to the recovery plate 14, while the other end of the traction rope 21 passes around the second connecting shaft 23, passes between the pressing part 502 and the pressing plate 51, and connects to the movable plate 12. The traction rope 21 is in a tensioned state, allowing the flexible module 100 to smoothly switch between the unfolded and retracted states, preventing the flexible module 100 from warping. Through the adjustment mechanism, different forces can be applied to the recovery plate 14 via the traction rope 21 to achieve better flatness for the flexible module 100.

[0098] For example, in the first direction, the distance between the second connecting shaft 23 and the movable plate 12 is greater than the width of the pressure plate 51 in the first direction. This ensures that when the spring 54 deforms and applies force to the pressure plate 51, the pressure plate 51 has sufficient room to move, so as to provide sufficient force to the traction rope 21, thereby ensuring that the flexible module 100 achieves better flatness.

[0099] It should be noted that the second connecting shaft 23 may include multiple connecting sub-shafts. For example, when the second connecting shaft 23 includes two connecting sub-shafts, the guide post 55 includes three, with each connecting sub-shaft located between two adjacent guide posts 55 to avoid interference, but this is not a limitation.

[0100] It should be noted that the specific structural form of the adjustment structure is not limited to the above-mentioned configuration including spring 54, pressure plate 51, etc. For example, the adjustment structure may also include coil spring structure 6, see reference. Figure 8 The coil spring structure 6 includes a coil spring body, one end of which is connected to the recycling plate 14.

[0101] By applying different magnitudes of force to the recovery plate 14 through the deformation of the coil spring body, a more comprehensive reliability test can be provided.

[0102] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, and the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A reliability testing fixture for testing the reliability of a flexible module, characterized in that, The utility model relates to a flexible display module fixing device, comprising: a support frame; a fixing assembly for fixing the flexible display module, fixed on the support frame, the fixing assembly comprising a fixed plate, a movable plate arranged in parallel, a rotating shaft and a recovery plate, the recovery plate being arranged at an angle with the fixed plate, one end of the fixed plate being provided with the rotating shaft, the rotating shaft being located between the fixed plate and the recovery plate, the movable plate being capable of moving in a first direction relative to the fixed plate, and the recovery plate being capable of moving in a second direction, the fixed plate, the movable plate and the recovery plate cooperating to enable the flexible display module to switch between an unfolded state and a rolled-up state, the first direction being parallel to the direction from the rotating shaft to the fixed plate, and the second direction being parallel to the direction from the rotating shaft to the recovery plate; an adjusting structure connected to the recovery plate, for providing different forces in the second direction to the recovery plate, so that the recovery plate moves away from the rotating shaft to adjust the flatness of the part of the flexible display module fixed on the fixed plate and the movable plate; the adjusting structure comprising an adjusting part, a traction rope and a first connecting shaft: the first connecting shaft being fixed on the support frame, and in the second direction, the first connecting shaft being located on the side of the recovery plate away from the rotating shaft, one end of the traction rope being connected to the recovery plate, and the other end of the traction rope being connected to the adjusting part by passing around the first connecting shaft.

2. The reliability test fixture of claim 1, wherein the adjusting part comprising: a pressing plate arranged on the side of the movable plate away from the fixed plate, the extension direction of the pressing plate being arranged in parallel with the side edge of the side of the movable plate away from the fixed plate, the pressing plate being provided with a movable pressing part, one end of the traction rope passing between the movable pressing part and the pressing plate and being connected to the movable plate; at least one spring connected to the side of the pressing plate away from the movable plate, the elastic deformation direction of the spring being perpendicular to the extension direction of the pressing plate and parallel to the fixing surface of the movable plate for fixing the flexible display module; at least one adjusting cylinder sleeved outside the corresponding spring, one end of the adjusting cylinder being fixed on the end of the movable plate away from the rotating shaft, a strip-shaped hole being arranged on the side wall of the adjusting cylinder, the extension direction of the strip-shaped hole being parallel to the extension direction of the spring; at least one adjusting stopper arranged on the end of the corresponding adjusting cylinder away from the pressing plate, the adjusting stopper being provided with a mounting screw hole and an adjusting screw hole, the mounting screw hole being used for allowing a mounting bolt to pass through to fixedly connect the adjusting stopper and the corresponding adjusting cylinder, and the adjusting screw hole being used for allowing an adjusting bolt to pass through, one end of the adjusting bolt being screwed into the adjusting screw hole and being connected to the corresponding spring.

3. The reliability test fixture of claim 2, wherein the adjusting part further comprising at least one guide column, one end of the guide column being fixed on the pressing plate, and the other end of the guide column being inserted into the inside of the corresponding spring.

4. The reliability test fixture of claim 2, wherein The adjusting part further comprises a limiting block, in the first direction, the limiting block comprises a body fixed to one end of the movable plate away from the fixed plate, and at least part of the body extends towards the pressing plate to form a limiting plate covering the pressing plate.

5. The reliability test fixture of claim 2, wherein The adjusting structure further comprises a second connecting shaft, in the first direction, the second connecting shaft is fixed to one end of the movable plate away from the fixed plate, and the second connecting shaft is located on the side of the pressing plate away from the movable plate, one end of the traction rope passes through between the pressing part and the pressing plate and is connected with the movable plate through the second connecting shaft.

6. The reliability test fixture of claim 5, wherein In the first direction, the distance between the second connecting shaft and the movable plate is greater than the width of the pressing plate in the first direction.

7. The reliability test fixture of claim 1, wherein The adjusting structure comprises a coil spring structure, the coil spring structure comprises a coil spring body, one end of the coil spring body is connected with the recovery plate.

8. The reliability test fixture of claim 1, wherein, The support frame comprises a first support rod and a second support rod, the first support rod is fixedly connected with the fixed plate, one end of the second support rod is connected with one end of the first support rod, and the angle between the first support rod and the second support rod is less than or equal to 90 degrees, and one side of the second support rod is provided with a first sliding rail in sliding connection with the recovery plate.

9. The reliability test fixture of claim 8, wherein, A reinforcing support plate is arranged between the first support rod and the second support rod.

10. The reliability test fixture of claim 1, wherein The fixed plate is provided with a first comb tooth part and a first sliding connection part, the first comb tooth part is provided with a first comb tooth, and the first sliding connection part is provided with a first sliding rail extending in the first direction; The movable plate is provided with a second comb tooth part and a second sliding connection part, the second comb tooth part is provided with a second comb tooth, the first comb tooth and the second comb tooth are engaged with each other, the comb tooth surfaces of the first comb tooth and the second comb tooth are located in the same plane, and the second sliding connection part is provided with a sliding block in sliding connection with the first sliding rail.

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