Test fixture

Abstract

This invention relates to a test fixture, comprising an L-shaped base for fixing a flexible module, a movable plate, and a retraction plate; the L-shaped base includes a bottom plate and a side plate; the movable plate is movable relative to the side plate in a first direction, the side plate including a first end near the bottom plate and a second end opposite to the first end, the first direction being parallel to the direction from the first end to the second end; the retraction plate is movable in a second direction, the bottom plate including a third end near the side plate and a fourth end opposite to the third end, the second direction being parallel to the direction from the third end to the fourth end; the test fixture includes a tensioning structure, the tensioning structure including a first steering unit disposed on the movable plate, a second steering unit disposed at the connection between the bottom plate and the side plate, a third steering unit disposed on the bottom plate, and a flexible tensioning strip, one end of the flexible tensioning strip being fixed to the movable plate, and the other end sequentially passing around the first steering unit, the second steering unit, and the third steering unit, and being fixed to the retraction plate.

Description

Technical Field

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

[0002] In the field of display technology, flexible display modules are characterized by their light and thin size and strong bending flexibility. Therefore, they have broadened the structural form of terminal devices, and terminal devices have made breakthroughs in folding form, single sliding form, double sliding form, folding and single sliding superposition form, etc.

[0003] As a new form of vehicle display, the L-shaped vehicle-mounted lifting display device can achieve two screen ratio changes. The display surface of the flexible module can be at a certain angle to the horizontal plane. When the flexible module is in the lowered state, the functional modules on the upper side of the display device located behind the flexible module can be exposed for use. When the flexible module is in the raised state, the functional modules on the upper side of the display device located behind the flexible module can be covered, thereby achieving the purpose of saving space.

[0004] However, the spring tensioning system and tensioning rope system used in the current L-shaped lifting mode display device are both unstable due to their own material properties. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides a testing fixture that solves the problem of unstable force in the tensioning system affecting testing stability.

[0006] To achieve the above objectives, the technical solution adopted in this embodiment of the invention is: a test fixture for testing the reliability of a flexible module, the test fixture comprising an L-shaped base for fixing the flexible module, a movable plate, and a retraction plate;

[0007] The L-shaped base includes a base plate and side plates;

[0008] The movable plate is arranged parallel to the side plate and is movable relative to the side plate in a first direction. The side plate includes a first end located near the bottom plate and a second end opposite to the first end. The first direction is parallel to the direction from the first end to the second end.

[0009] The recycling plate is slidably connected to the base plate and can move in a second direction. The base plate includes a third end located near the side plate and a fourth end opposite to the third end. The second direction is parallel to the direction from the third end to the fourth end.

[0010] The L-shaped base, the movable plate, and the retractable plate work together to allow the flexible module to switch between an unfolded state and a retracted state.

[0011] The test fixture also includes a tensioning structure, which includes a first steering unit disposed on the movable plate, a second steering unit disposed at the connection between the base plate and the side plate, a third steering unit disposed on the base plate, and a flexible tensioning strip. One end of the flexible tensioning strip is fixed to the movable plate, and the other end of the flexible tensioning strip passes sequentially around the first steering unit, the second steering unit and the third steering unit, and is fixed to the recovery plate.

[0012] Optionally, the first steering unit includes a first shaft, the axial direction of the first shaft being perpendicular to the first direction and perpendicular to the second direction. The first shaft is fixed to the side plate by a first mounting seat, and a first sleeve is sleeved on the outside of the first shaft so that the flexible tension strip passes around the sleeve and extends to the second steering unit.

[0013] Optionally, in the axial direction of the first shaft, first bearings are provided on both sides of the first sleeve to limit the movement of the first sleeve.

[0014] Optionally, one end of the flexible tensioning strip is fixed to the end of the movable plate near the bottom plate, and the first shaft is fixed to the end of the side plate away from the bottom plate.

[0015] Optionally, the side plate includes a first comb tooth structure, the movable plate includes a second comb tooth structure that cooperates with the first comb tooth structure, the first comb tooth structure includes two adjacent first comb teeth, the second comb tooth structure includes a second comb tooth located between two adjacent first comb teeth, the opposite ends of the first shaft are fixed to the two adjacent first comb teeth, the second comb tooth is provided with a through hole extending along the first direction, and the first sleeve is located at the through hole.

[0016] Optionally, the second steering unit includes a second shaft arranged parallel to the first shaft, and a second sleeve is sleeved on the middle of the second shaft through a bearing. The flexible tension bar passes around the second sleeve and extends to the third steering unit.

[0017] Optionally, rollers are fitted on both sides of the second shaft of the second sleeve, and the rollers are used to contact the flexible module so that the flexible module rotates around the rollers.

[0018] Optionally, a retaining ring is provided between the roller and the bearing to limit the position of the roller and the second sleeve, so that the roller and the second sleeve can move independently.

[0019] Optionally, the roller and the second sleeve are concentrically arranged, and the radius of the roller is greater than the radius of the second sleeve.

[0020] Optionally, the third steering unit includes a third shaft and a fourth shaft fixed to one end of the base plate away from the side plate. The third shaft and the fourth shaft are spaced apart in a direction perpendicular to the base plate, and the fourth shaft is disposed close to the base plate.

[0021] The third steering unit also includes a movable shaft disposed on the recovery plate. The movable shaft is located on the side of the fourth shaft near the side plate. The flexible tension strip passes sequentially around the sleeve on the third shaft, the sleeve on the fourth shaft, and the movable shaft, and is fixed to the end of the recovery plate away from the side plate. The fixed end of the flexible tension strip is located on the side of the movable shaft away from the side plate.

[0022] Optionally, the portion of the flexible tensioning strip located between the fourth shaft and the moving shaft is arranged parallel to the base plate, and the portion of the flexible tensioning strip located between the moving shaft and the fixed end is arranged parallel to the base plate.

[0023] Optionally, the distance between the third shaft and the base plate is greater than the distance between the second shaft in the second steering unit and the base plate.

[0024] Optionally, the movable plate has a mounting groove at one end away from the base plate for fixing the flexible module, and mounting holes are provided in the mounting groove for mounting electronic devices on the flexible module.

[0025] Optionally, the side plate is provided with a magnetic element for adsorbing the flexible module.

[0026] Optionally, a guide rail connecting seat is provided between the side plate and the bottom plate. In the third direction, the guide rail connecting seat is provided on both sides of the L-shaped base. A guide rail is provided on the side of the guide rail connecting seat facing the movable plate. The movable plate is movably mounted on the guide rail. The third direction is perpendicular to the first direction and the third direction is perpendicular to the second direction.

[0027] Optionally, a bracket may also be provided on the side of the base plate away from the side plate.

[0028] The beneficial effects of the present invention are as follows: the test fixture in this embodiment, through the cooperation of the L-shaped base, the movable plate and the retraction plate, enables the flexible module to switch between the unfolded state (i.e., the rising state) and the retracted state (i.e., the falling state); the tensioning structure provides a stable tension force to ensure the flatness of the flexible module. Attached Figure Description

[0029] Figure 1 A schematic diagram showing the flexible module in a descending state;

[0030] Figure 2 A schematic diagram showing the flexible module in a rising state;

[0031] Figure 3 A schematic diagram illustrating the test fixture in an embodiment of the present invention;

[0032] Figure 4 A schematic diagram showing the first steering unit in an embodiment of the present invention;

[0033] Figure 5 A schematic diagram illustrating the test fixture in an embodiment of the present invention;

[0034] Figure 6 A schematic diagram showing the second steering unit in an embodiment of the present invention;

[0035] Figure 7 A schematic diagram illustrating the third steering unit in an embodiment of the present invention;

[0036] Figure 8 This is a schematic diagram illustrating the tensioning principle of the tensioning system in an embodiment of the present invention;

[0037] Figure 9 This is a schematic diagram illustrating the tensioning principle of the tensioning system in an embodiment of the present invention. Detailed Implementation

[0038] 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.

[0039] 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.

[0040] refer to Figures 1-9 This embodiment provides a test fixture for testing the reliability of a flexible module 100. The test fixture includes an L-shaped base 2, a movable plate 3, and a retraction plate 8 for fixing the flexible module 100.

[0041] The L-shaped base 2 includes a base plate 202 and a side plate 201;

[0042] The movable plate 3 is arranged parallel to the side plate 201 and can move relative to the side plate 201 in a first direction. The side plate 201 includes a first end disposed near the bottom plate 202 and a second end opposite to the first end. The first direction is parallel to the direction from the first end to the second end.

[0043] The recycling plate 8 is slidably connected to the bottom plate 202 and can move in a second direction. The bottom plate 202 includes a third end disposed near the side plate 201 and a fourth end opposite to the third end. The second direction is parallel to the direction from the third end to the fourth end.

[0044] The L-shaped base 2, the movable plate 3, and the retractable plate 8 cooperate to allow the flexible module 100 to switch between an unfolded state (i.e., an ascending state) and a retracted state (i.e., a descending state).

[0045] The test fixture also includes a tensioning structure, which includes a first steering unit 6 disposed on the movable plate 3, a second steering unit 11 disposed at the connection between the base plate 202 and the side plate 201, a third steering unit 7 disposed on the base plate 202, and a flexible tensioning strip 9. One end of the flexible tensioning strip 9 is fixed to the movable plate 3, and the other end of the flexible tensioning strip 9 passes through the first steering unit 6, the second steering unit 11 and the third steering unit 7 in sequence, and is fixed to the recovery plate 8.

[0046] When testing the reliability of the flexible module 100 using the reliability testing fixture in this embodiment, one end of the flexible module 100 is fixed to the movable plate 3, and the other end of the flexible module 100 passes through the side plate 201 and bottom plate 202 of the L-shaped base 2 and is fixed to the recycling plate 8. The movable plate 3 can be positioned in the first direction (refer to...) Figure 3 The recovery plate 8 can move relative to the side plate 201 in the second direction (referring to the X direction), and the recovery plate 8 can move in the second direction (referring to the X direction). Figure 3 The flexible module 100 can move towards or away from the side plate 201 in the Y direction (as shown in the image). Under the combined action of the side plate 201, the movable plate 3, and the retractable plate 8, the flexible module 100 can switch between an unfolded state and a retracted state, thus enabling the flexible module 100 to be in an ascending state (see reference). Figure 2 ) and declining state (reference) Figure 1 The conversion enables the testing of the reliability of the flexible module 100.

[0047] During the rising or falling of the flexible module 100, the flatness of the flexible module 100 is ensured by the setting of the tensioning structure.

[0048] For example, the flexible tension strip 9 can be made of PI material (polyimide), which has excellent thermal stability (>500°C), mechanical toughness, and chemical resistance. Polyimide has excellent tensile and compressive strength. Utilizing the advantages of polyimide improves test stability and mitigates the resulting crease problem in the flexible module 100.

[0049] It should be noted that the flexibility of the flexible tension strip 9 refers to its ability to bend and bypass the first steering unit 6, the second steering unit 11, and the third steering unit 7 to achieve steering, and does not refer to the deformation of the flexible tension strip 9 under stress. Furthermore, since the flexible tension strip 9 is used to ensure the flatness of the flexible module 100 during movement through its tension force, it needs to have excellent tensile and compressive strength and be resistant to deformation, so that its length remains constant during the movement of the flexible module 100 to maintain its tension force.

[0050] It should be noted that the number of tensioning structures can be set according to actual needs. Figure 3 Along the third direction (reference) Figure 3 Four tensioning structures are arranged at intervals in the Z direction (in the middle), but this is not a limitation.

[0051] refer to Figure 4 In an exemplary embodiment, the first steering unit 6 includes a first shaft 61, the axial direction of the first shaft 61 (i.e. the third direction) is perpendicular to the first direction and perpendicular to the second direction. The first shaft 61 is fixed to the side plate 201 by a first mounting seat 64. A first sleeve 62 is sleeved on the outside of the first shaft 61 so that the flexible tensioning strip 9 passes around the first sleeve 62 and extends to the second steering unit 11.

[0052] In an exemplary embodiment, first bearings 63 are provided on both sides of the first sleeve 62 in the axial direction of the first shaft 61 to limit the first sleeve 62 and prevent the flexible tension strip 9 from shifting.

[0053] In an exemplary embodiment, one end of the flexible tensioning strip 9 is fixed to the end of the movable plate 3 near the bottom plate 202, and the first shaft 61 is fixed to the end of the side plate 201 away from the bottom plate 202.

[0054] refer to Figure 8 and Figure 9 , Figure 8 This is a schematic diagram of the flexible module in a descending state. Figure 9 This diagram illustrates the flexible module in an ascending state. One end of the flexible tensioning strip 9, fixed to the movable plate 3, is defined as the first fixed end 91. Regardless of whether the flexible module 100 is in a descending or ascending state, the first fixed end 91 is always located on the side of the first axis 61 away from the base plate 202. The flexible tensioning strip 9 extends away from the base plate 202, passes around the first axis 61, and then changes direction, extending towards the base plate 202 to the second steering unit 11.

[0055] For example, the movable plate 3 includes a connecting surface for fixing the flexible module 100 and a back surface disposed opposite to the connecting surface. The back surface of the movable plate 3 is provided with a first connecting boss 31, and the first fixing end 91 of the flexible tensioning strip 9 is fixed to the first connecting boss 31 by the pressure plate 10.

[0056] The first connecting boss 31, the first fixed end 91, and the pressure plate 10 are all provided with corresponding mounting holes for bolts to pass through, so as to fix the first fixed end 91 of the flexible tensioning strip 9 to the first connecting boss 31.

[0057] For example, the first connecting boss 31 is configured such that the portion of the flexible tensioning strip 9 located between the first fixed end 91 and the first shaft 61 is parallel to the movable plate 3.

[0058] For example, the portion of the flexible tensioning strip 9 located between the first shaft 61 and the second steering unit 11 is arranged parallel to the movable plate 3.

[0059] refer to Figure 5 In an exemplary embodiment, the side plate 201 includes a first comb structure 2001, the first comb structure 2001 including a plurality of teeth along a third direction (reference). Figure 3 The movable plate 3 includes a second comb structure 32 that cooperates with the first comb structure 2001. The second comb structure 32 includes multiple comb teeth arranged along a third direction (the third direction is parallel to the axial direction of the first shaft 61). The comb teeth of the first comb structure 2001 and the comb teeth of the second comb structure 32 are meshed together, and the comb tooth surfaces of the first comb structure 2001 and the comb tooth surfaces of the second comb structure 32 are located on the same plane. The movable plate 3 and the side plate 201 jointly support the flexible module 100 to avoid unsupported areas in the flexible module 100, which would affect the flatness of the flexible module 100.

[0060] It should be noted that a limiting structure is provided on one of the first comb tooth structure 2001 and the second comb tooth structure 32 to prevent the comb teeth of the first comb tooth structure 2001 and the comb teeth of the second comb tooth structure 32 from separating, which causes the side plate 201 and the movable plate 3 to have a gap in the first direction, resulting in an unsupported area in the flexible module 100.

[0061] The first comb tooth structure 2001 includes two adjacent first comb teeth, the second comb tooth structure 32 includes a second comb tooth located between the two adjacent first comb teeth, the opposite ends of the first shaft 61 are fixed to the two adjacent first comb teeth, the second comb tooth is provided with a through hole 35 extending along the first direction, and the first sleeve 62 is located at the through hole 35.

[0062] The aforementioned through hole 35 allows for avoidance of the first sleeve 62, thereby reducing the thickness of the test fixture.

[0063] refer to Figure 6 In an exemplary embodiment, the second steering unit 11 includes a second shaft 101 arranged parallel to the first shaft 61. A second sleeve 103 is sleeved on the middle part of the second shaft 101 through a bearing. The flexible tensioning strip 9 passes around the second sleeve 103 and extends to the third steering unit 7.

[0064] In an exemplary embodiment, rollers 104 are sleeved on both sides of the second shaft 101 located on the second sleeve 103. The rollers 104 are used to contact the flexible module 100 so that the flexible module 100 rotates around the rollers 104.

[0065] For example, the tangential surface of the roller 104 is located on the same plane as the comb tooth surface of the second comb tooth structure 32, ensuring the flatness of the flexible module 100.

[0066] In an exemplary embodiment, a retaining ring 105 is provided between the roller 104 and the bearing to limit the position of the roller 104 and the second sleeve 103, so that there is a gap between the roller 104 and the second sleeve 103, so that the roller 104 and the second sleeve 103 can move independently.

[0067] When the flexible module 100 is in a lifting motion, the second sleeve 103 and the roller 104 move in opposite directions. The snap ring 105 allows the roller 104 and the second sleeve 103 to move independently, avoiding mutual interference.

[0068] In an exemplary embodiment, the roller 104 and the second sleeve 103 are concentrically arranged, and the radius of the roller 104 is larger than the radius of the second sleeve 103. This allows the flexible module 100 to rotate around the roller 104, but there is a gap between the flexible tensioning strip 9 and the flexible module 100 to avoid interference.

[0069] A second limiting bearing 102 is provided on the second shaft 101 on both sides opposite to the second sleeve 103. The second limiting bearing 102 is fixed to the L-shaped base 2 by a bearing fixing seat 106.

[0070] It should be noted that the side plate 201 includes the first comb tooth structure 2001 and a planar structure located on the side of the first comb tooth structure 2001 near the bottom plate 202. The planar structure can be provided with a clearance hole that is connected to the through hole 35 on the movable plate 3. The clearance hole is arranged parallel to the through hole 35 and the clearance hole penetrates the planar part to form a notch, so that the flexible tensioning strip 9 passes through the through hole 35 and the clearance hole and then directly wraps around the second sleeve 103.

[0071] refer to Figure 7 In an exemplary embodiment, the third steering unit 7 includes a third shaft 71 and a fourth shaft 72 fixed to one end of the base plate 202 away from the side plate 201. The third shaft 71 and the fourth shaft 72 are spaced apart in a direction perpendicular to the base plate 202, and the fourth shaft 72 is disposed close to the base plate 202.

[0072] The third steering unit 7 also includes a movable shaft 73 disposed on the recovery plate 8. The movable shaft 73 is located on the side of the fourth shaft 72 near the side plate 201. The flexible tension strip 9 passes sequentially around the sleeve (i.e., the third sleeve 75) on the third shaft 71, the sleeve (i.e., the fourth sleeve 77) on the fourth shaft 72, and the movable shaft 73, and is fixed to the end of the recovery plate 8 away from the side plate 201. The fixed end of the flexible tension strip 9 is located on the side of the movable shaft 73 away from the side plate 201.

[0073] A second connecting boss 74 is provided on the side of the base plate 202 facing the side plate 201. The third shaft 71 and the fourth shaft 72 are respectively connected to opposite sides of the second connecting boss 74. The base plate 202 has an opening to provide clearance space for the fourth shaft 72 and to expose the fourth shaft 72. The base plate 202 has a fixing hole, and slide rails are provided on two opposite side walls in the third direction (i.e., the axial direction of the third shaft 71). The recovery plate 8 is movably disposed between the two slide rails.

[0074] A third sleeve 75 is fitted onto the third shaft 71. In the axial direction of the third shaft 71, third limiting bearings 76 are provided on opposite sides of the third sleeve 75. The third shaft 71 is fixed to the second connecting boss 74 by a first fixing seat 78.

[0075] A fourth sleeve 77 is fitted on the fourth shaft 72. In the axial direction of the fourth shaft 72, fourth limiting bearings are provided on opposite sides of the fourth sleeve 77. The fourth shaft 72 is fixed to the second connecting boss 74 by the second fixing seat 79.

[0076] Since the flexible tensioning strip 9 only changes direction and does not roll at the moving shaft 73, the sleeve and bearing cooperation design at the moving shaft 73 is eliminated. The moving shaft 73 is fixed to the recycling plate 8 by the third fixing seat 701, and the flexible tensioning strip 9 is set to directly bypass the moving shaft 73.

[0077] refer to Figure 8 and Figure 9The flexible tensioning strip 9 is fixed to the recycling plate 8 at one end, which is the second fixed end 92. The recycling plate 8 is provided with a third connecting boss. The second fixed end 92 of the flexible tensioning strip 9 is fixed to the third connecting boss by a cover plate. The third connecting boss is provided such that the part of the flexible tensioning strip 9 located between the moving shaft 73 and the second fixed end 92 is parallel to the base plate 202.

[0078] The third connecting boss, the cover plate, and the second fixing end 92 of the flexible tension strip 9 are all provided with corresponding bolt mounting holes to fix the flexible tension strip 9 to the recycling plate 8.

[0079] For example, the portion of the flexible tensioning strip 9 located between the fourth shaft 72 and the moving shaft 73 is arranged parallel to the base plate 202.

[0080] The purpose of setting the fourth axis 72 is mainly to ensure that the flexible tension strip 9 is always parallel to the flexible module 100 on both sides when it moves. That is, the part of the flexible tension strip 9 located between the fourth axis 72 and the moving axis 73 is set parallel to the base plate 202. At the same time, the part of the flexible tension strip 9 located between the moving axis 73 and the second fixed end 92 is set parallel to the base plate 202, ensuring that the length of the flexible tension strip 9 remains unchanged during movement.

[0081] It should be noted that under the action of force, the movable plate 3 moves upward, and the flexible module 100 and the second fixed end 92 of the flexible tensioning strip 9 move synchronously, thereby realizing the upward state of the flexible module 100 and maintaining tension throughout the upward process.

[0082] For example, the distance between the third axis 71 and the base plate 202 is greater than the distance between the second axis 101 and the base plate 202.

[0083] A certain height difference is set between the second shaft 101 and the third shaft 71, the purpose of which is mainly to avoid interference between the moving shaft 73 and the flexible tensioning strip 9 when the moving shaft 73 moves.

[0084] refer to Figure 5 For example, the movable plate 3 is provided with a mounting groove 33 at one end away from the base plate 202 for fixing the flexible module 100, and a mounting hole 34 is provided in the mounting groove 33 for mounting electronic devices on the flexible module 100.

[0085] It should be noted that the number, location, and size of the mounting holes 34 can all be set according to actual needs.

[0086] For example, the side plate 201 is provided with a magnetic element 2002 for adsorbing the flexible module 100 and reducing the height of the crease of the flexible module 100 during movement.

[0087] For example, the side plate 201 is provided with a receiving groove, the magnetic component 2002 is embedded in the receiving groove, and the outer surface of the magnetic component 2002 is located on the same plane as the comb tooth surface of the first comb tooth structure 2001.

[0088] It should be noted that the adsorption force of the magnetic component 2002 needs to be set according to actual needs so as not to affect the lifting and lowering movement of the flexible module 100.

[0089] refer to Figure 3 For example, a guide rail connecting seat 4 is provided between the side plate 201 and the bottom plate 202, in a third direction (reference) Figure 3 In the Z direction, the L-shaped base 2 is provided with guide rail connecting seats 4 on both sides. The guide rail connecting seat 4 is provided with a guide rail 5 on the side facing the movable plate 3. The guide rail 5 extends along the first direction. The movable plate 3 is movably disposed on the guide rail 5. The third direction is perpendicular to the first direction and the third direction is perpendicular to the second direction.

[0090] For example, the guide rail connecting seat 4 is L-shaped, including a first connecting part connected to the side plate and a second connecting part connected to the bottom plate, and the guide rail 5 is disposed on the first connecting part.

[0091] For example, the guide rail connector 4 is provided with reinforcing ribs 41 to enhance the stability of the guide rail connector 4.

[0092] For example, the test fixture also includes a bracket 1 disposed on the side of the base plate 202 away from the side plate 201.

[0093] For example, the bracket 1 includes L-shaped supports located on opposite sides of the base plate 202 in the third direction.

[0094] It should be noted that during testing, the recycling plate 8 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 3 moves relative to the side plate 201 in the first direction, which can realize the switching of the flexible module 100 between the rising state and the falling state, thereby realizing the reliability test of the flexible module 100.

[0095] 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.

[0096] 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.

[0097] The following points need to be explained:

[0098] (1) The accompanying drawings of the embodiments of this disclosure only involve the structures involved in the embodiments of this disclosure. Other structures can be referred to the general design.

[0099] (2) For clarity, the thickness of layers or regions is enlarged or reduced in the drawings used to describe embodiments of the present disclosure, i.e., these drawings are not drawn to actual scale. It will be understood that when an element such as a layer, film, region or substrate is referred to as being “above” or “below” another element, the element may be “directly” located “above” or “below” the other element or there may be intermediate elements.

[0100] (3) Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0101] It is understood that the above embodiments are merely exemplary implementations 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 test fixture for testing the reliability of a flexible module, characterized in that, The test fixture includes an L-shaped base for fixing the flexible module, a movable plate, and a retraction plate; The L-shaped base includes a base plate and side plates; The movable plate is arranged parallel to the side plate and is movable relative to the side plate in a first direction. The side plate includes a first end located near the bottom plate and a second end opposite to the first end. The first direction is parallel to the direction from the first end to the second end. The recycling plate is slidably connected to the base plate and can move in a second direction. The base plate includes a third end located near the side plate and a fourth end opposite to the third end. The second direction is parallel to the direction from the third end to the fourth end. The L-shaped base, the movable plate, and the retractable plate work together to allow the flexible module to switch between an unfolded state and a retracted state. The test fixture also includes a tensioning structure, which includes a first steering unit disposed on the movable plate, a second steering unit disposed at the connection between the base plate and the side plate, a third steering unit disposed on the base plate, and a flexible tensioning strip. One end of the flexible tensioning strip is fixed to the movable plate, and the other end of the flexible tensioning strip passes sequentially around the first steering unit, the second steering unit and the third steering unit, and is fixed to the recovery plate.

2. The test fixture according to claim 1, characterized in that, The first steering unit includes a first shaft, the axial direction of the first shaft being perpendicular to the first direction and perpendicular to the second direction. The first shaft is fixed to the side plate by a first mounting seat. A first sleeve is sleeved on the outside of the first shaft so that the flexible tension strip passes around the first sleeve and extends to the second steering unit.

3. The test fixture according to claim 2, characterized in that, In the axial direction of the first shaft, first bearings are provided on both sides of the first sleeve to limit the movement of the first sleeve.

4. The test fixture according to claim 2, characterized in that, One end of the flexible tensioning strip is fixed to the end of the movable plate near the bottom plate, and the first shaft is fixed to the end of the side plate away from the bottom plate.

5. The test fixture according to claim 2, characterized in that, The side plate includes a first comb tooth structure, and the movable plate includes a second comb tooth structure that cooperates with the first comb tooth structure. The first comb tooth structure includes two adjacent first comb teeth, and the second comb tooth structure includes a second comb tooth located between the two adjacent first comb teeth. The opposite ends of the first shaft are fixed to the two adjacent first comb teeth. The second comb tooth is provided with a through hole extending along the first direction, and the first sleeve is located at the through hole.

6. The test fixture according to claim 5, characterized in that, The second steering unit includes a second shaft arranged parallel to the first shaft. A second sleeve is fitted onto the middle of the second shaft via a bearing. The flexible tension bar passes around the second sleeve and extends to the third steering unit.

7. The test fixture according to claim 6, characterized in that, The second shaft is fitted with rollers on both sides of the second sleeve. The rollers are used to contact the flexible module so that the flexible module rotates around the rollers.

8. The test fixture according to claim 7, characterized in that, A retaining ring is provided between the roller and the bearing to limit the position of the roller and the second sleeve, so that the roller and the second sleeve can move independently.

9. The test fixture according to claim 7, characterized in that, The roller and the second sleeve are concentrically arranged, and the radius of the roller is greater than the radius of the second sleeve.

10. The test fixture according to claim 1, characterized in that, The third steering unit includes a third shaft and a fourth shaft fixed to one end of the base plate away from the side plate. The third shaft and the fourth shaft are spaced apart in a direction perpendicular to the base plate, and the fourth shaft is located close to the base plate. The third steering unit also includes a movable shaft disposed on the recovery plate. The movable shaft is located on the side of the fourth shaft near the side plate. The flexible tension strip passes sequentially around the sleeve on the third shaft, the sleeve on the fourth shaft, and the movable shaft, and is fixed to the end of the recovery plate away from the side plate. The fixed end of the flexible tension strip is located on the side of the movable shaft away from the side plate.

11. The test fixture according to claim 10, characterized in that, The portion of the flexible tensioning strip located between the fourth shaft and the moving shaft is parallel to the base plate, and the portion of the flexible tensioning strip located between the moving shaft and the fixed end is parallel to the base plate.

12. The test fixture according to claim 10, characterized in that, The distance between the third shaft and the base plate is greater than the distance between the second shaft in the second steering unit and the base plate.

13. The test fixture according to claim 1, characterized in that, The movable plate has a mounting groove at one end away from the base plate for fixing the flexible module, and mounting holes are provided in the mounting groove for mounting electronic devices on the flexible module.

14. The test fixture according to claim 1, characterized in that, The side plate is equipped with magnetic components for adsorbing the flexible module.

15. The test fixture according to claim 1, characterized in that, A guide rail connecting seat is provided between the side plate and the bottom plate. In the third direction, the guide rail connecting seat is provided on both sides of the L-shaped base. A guide rail is provided on the side of the guide rail connecting seat facing the movable plate. The movable plate is movably mounted on the guide rail. The third direction is perpendicular to the first direction and the third direction is perpendicular to the second direction.

16. The test fixture according to claim 1, characterized in that, It also includes a bracket disposed on the side of the base plate away from the side plate.

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