Perovskite film quality detection equipment

Abstract

The invention relates to the technical field of film quality detection, and particularly provides perovskite film quality detection equipment which comprises two inverted L-shaped tables, a two-way stretching detection mechanism and a bending state simulation mechanism. According to the invention, the two-way stretching detection mechanism is matched with the bending state simulation mechanism, so that the two-way stretching test of the film under the states of different bending radiuses and different bending directions is realized, and the simulation film can be subjected to two-way stretching under different bending degrees in practical application; the flexibility and the tensile property of the thin film under different curvatures are comprehensively evaluated, and the accuracy of quality detection of the tensile property of the thin film is improved; and the bending deformation plate and the deformation driving assembly are matched to carry out conversion of different curvatures so as to carry out curved surface propping and bending on the film, so that the convenience of conversion of different curved surface states of the film and the convenience of quality detection are improved.

Description

Technical Field

[0001] The invention relates to the technical field of film quality detection, and specifically proposes a perovskite film quality detection device. Background Art

[0002] Perovskite film is a thin film material with a unique crystal structure. It is widely used in photovoltaics, optoelectronics, catalysis and other fields. After the perovskite film is manufactured, strict quality inspection is a key step to ensure its performance and reliability. Among them, the tensile performance test of perovskite film is one of the most important testing directions. The tensile performance is a key step in evaluating its mechanical properties and reliability. Especially in practical applications, the film may need to withstand mechanical stress and deformation. The tensile performance test can help understand the mechanical strength, ductility and fracture behavior of the film, thereby ensuring its stability and service life in different environments and conditions.

[0003] Currently, the performance of perovskite films is tested when they are in a horizontal state. However, perovskite films are widely used in flexible displays, curved displays, and folding displays. In this case, the tensile performance of the perovskite film in a curved state must be tested. In addition, the perovskite film will bend in different curved states during actual application, and the tensile performance of the perovskite film in different curved states is also different. It is difficult to accurately detect the tensile performance of the perovskite film by stretching in a single horizontal state or a single curved state. Therefore, a perovskite film quality detection equipment is urgently needed. Summary of the invention

[0004] In view of the above problems, an embodiment of the present application provides a perovskite film quality detection device to solve the technical problems in the related art.

[0005] In order to achieve the above-mentioned purpose, the embodiment of the present application provides the following technical solution: a perovskite film quality detection device, comprising: two inverted L-shaped tables, the tops of the two inverted L-shaped tables are jointly equipped with a bidirectional stretching detection mechanism for fixing and stretching the two ends of the film, and the two inverted L-shaped tables are also equipped with a bending state simulation mechanism.

[0006] The bidirectional stretching detection mechanism includes a supporting seat slidably connected to the top of the inverted L-shaped platform, the supporting seat is an L-shaped structure with arc-shaped corners, the bottom of the supporting seat is connected to the top of the inverted L-shaped platform through a sliding compensation group, a pressing group for pressing the end of the film is installed on the supporting seat, and a stretching driving group for driving the supporting seat to move and stretch the film is also installed on the inverted L-shaped platform.

[0007] In one possible implementation, the pressing group includes a mounting groove opened in the vertical section of the supporting seat, a rotating shaft is rotatably connected in the mounting groove, one end of the rotating shaft slides through the supporting seat, the other end of the rotating shaft is connected to the supporting seat by a threaded fit, and a pressure seat is rotatably connected to the mounting groove and is sleeved on the rotating shaft and connected to the rotating shaft by a spline fit, the pressure seat consists of an inclined section and a vertical section, the inclined section of the pressure seat is rotatably sleeved on the rotating shaft, and the lower end of the vertical section of the pressure seat is a semi-arc structure that matches the arc-shaped part of the supporting seat.

[0008] In a possible implementation, a rubber protective sheet is fixedly sleeved on the arc-shaped portion at the lower end of the vertical section of the pressing seat.

[0009] In one possible implementation, the stretching drive group includes a pulling frame mounted on a supporting seat and installed at both ends of a pressure seat arranged along its length direction. The top of the inverted L-shaped table is horizontally slidably connected to a hook plate, the hook plate is an inverted L-shaped structure and the horizontal section spans above the pulling frame. A one-way cylinder is also installed on the top of the inverted L-shaped table through a base, and the telescopic end of the one-way cylinder is fixedly connected to the hook plate.

[0010] In a possible implementation, the slip compensation group includes an inverted T-shaped groove opened on the top of the inverted L-shaped platform, and an inverted T-shaped slide seat slidably connected to the inverted T-shaped groove is installed at the lower end of the supporting seat.

[0011] In a possible implementation, the end of the horizontal section of the supporting seat and the end of the horizontal section of the inverted L-shaped platform are both rotatably connected with anti-friction rollers.

[0012] The bending state simulation mechanism comprises two bending simulation groups which are arranged symmetrically up and down. The two bending simulation groups are connected between two inverted L-shaped stages by sliding up and down through a connecting group. The film is located between the two bending simulation groups.

[0013] The bending simulation group includes a sun-shaped frame and a bending deformation plate. The bending deformation plate has an arc-shaped structure. Fixed bars are installed at both ends of the bending deformation plate arranged along its width direction. The lower end of the fixed bar is installed with support rods evenly arranged along its length direction. The three support rods at the lower end of the same fixed bar are respectively connected to the three transverse horizontal sections of the sun-shaped frame in a horizontal sliding manner. An auxiliary component for assisting the deformation of the bending deformation plate is installed between the middle part of the three transverse horizontal sections of the sun-shaped frame and the support rods on both sides thereof. A deformation driving component for driving the support rods and the fixed bars to drive the two ends of the bending deformation plate to move for bending deformation is installed on the sun-shaped frame.

[0014] In one possible implementation, the auxiliary component includes a lifting rod that is slidably connected to the middle part of the horizontal section of the sun-shaped frame, and the three lifting rods are connected to a push piece at one end close to the film and rotate together. Push rods are hinged between the lifting rods and the corresponding support rods on both sides of the lifting rods, and the push rods on both sides of the lifting rods are arranged in an eight-shaped shape.

[0015] In one possible implementation, the deformation drive assembly includes a vertically penetrating slide groove opened in the three horizontal sections of the sun-shaped frame, the support rod is slidably connected to the slide groove, the lifting rod is slidably connected to the slide groove up and down, the three support rods located on the same side of the three horizontal sections of the sun-shaped frame are connected by a connecting strip that slides through the horizontal sections of the sun-shaped frame, and a two-way hydraulic system is installed on the middle slide groove of the sun-shaped frame, and the two telescopic sections of the two-way hydraulic system are respectively connected to the two corresponding support rods.

[0016] In one possible implementation, the connection group includes two sun-shaped frames arranged along the width direction of the inverted L-shaped platform and a connecting frame installed together on one side. A supplementary seat is installed on the top of the inverted L-shaped platform, and guide plates 1 that are slidably connected to the supplementary seats on both sides are installed on both sides of the sun-shaped frame on the upper side, and guide plates 2 that are slidably connected to the vertical section of the inverted L-shaped platform are fixedly installed on both sides of the sun-shaped frame on the lower side.

[0017] In one possible implementation, the lower end of the horizontal section of the inverted L-shaped platform is connected to a top rod that slides up and down and passes into the inverted T-shaped groove, a swing rod is hinged between the top rod and the inverted T-shaped slide seat, and the side wall of the sun-shaped frame located on the lower side is rotatably installed with a top block corresponding to the top rod through a torsion spring rod.

[0018] The above one or more technical solutions in the embodiments of the present invention have at least one of the following beneficial effects: 1. A perovskite film quality detection device designed by the present invention, through the cooperation of a biaxial stretching detection mechanism and a bending state simulation mechanism, realizes the biaxial stretching test of the film under different bending radii and different bending directions, simulates the biaxial stretching of the film under different bending degrees in actual application, comprehensively evaluates the flexibility and tensile properties of the film under different curvatures, and improves the accuracy of the quality detection of the film tensile performance; and through the cooperation of the bending deformation plate and the deformation driving component to perform different curvature transformations to perform curved support bending on the film, thereby improving the convenience of changing different curved surface states of the film and the convenience of quality detection.

[0019] 2. When the supporting rods corresponding to both sides of the lifting rod of the present invention move, the lifting rod is pushed toward the film direction through the push rod, so that the lifting rod pushes the middle part of the bending deformation plate through the pushing piece, thereby assisting the bending deformation plate to change the bending state and improving the smoothness of the bending deformation of the bending deformation plate.

[0020] 3. The arc-shaped pressing fit between the pressing seat and the supporting seat of the present invention increases the pressing area between the two and the film, improves the stability of the film end fixation, and prevents the film from moving and affecting its detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0022] Figure 1 This is the first overall three-dimensional structural intention of the present invention.

[0023] Figure 2 This is the second overall three-dimensional structural intention of the present invention.

[0024] Figure 3 It is a main sectional view of the present invention.

[0025] Figure 4 The present invention Figure 3 A local enlarged schematic diagram of point A.

[0026] Figure numerals: 1, inverted L-shaped table; 10, push rod; 11, swing rod; 12, push block; 2, bidirectional stretching detection mechanism; 20, supporting seat; 201, anti-friction roller; 21, pressing group; 210, mounting groove; 211, rotating shaft; 212, pressing seat; 22, stretching drive group; 220, pulling frame; 221, hook plate; 222, one-way cylinder; 23, slip compensation group; 230, inverted T-shaped groove; 231, inverted T-shaped slide ; 3. Bending state simulation mechanism; 30. Bending simulation group; 301. Sun-shaped frame; 302. Bending deformation plate; 303. Fixing bar; 304. Support rod; 31. Connecting group; 310. Connecting frame; 311. Supplementary seat; 312. Guide plate 1; 313. Guide plate 2; 321. Lifting rod; 322. Pushing member; 323. Pushing rod; 330. Slide groove; 331. Connecting bar; 332. Bidirectional hydraulic; 4. Film. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] See also Figure 1 A perovskite film quality detection device includes: two inverted L-shaped platforms 1, the tops of the two inverted L-shaped platforms 1 are jointly equipped with a bidirectional stretching detection mechanism 2 for fixing and stretching the two ends of a film 4, and the two inverted L-shaped platforms 1 are also equipped with a bending state simulation mechanism 3.

[0030] See also Figure 1 , Figure 2 and Figure 3 The biaxial stretching detection mechanism 2 includes a supporting seat 20 slidably connected to the top of the inverted L-shaped platform 1. The supporting seat 20 is an L-shaped structure with an arc-shaped corner. The bottom of the supporting seat 20 is connected to the top of the inverted L-shaped platform 1 through a sliding compensation group 23. A pressing group 21 for pressing the end of the film 4 is installed on the supporting seat 20. The inverted L-shaped platform 1 is also equipped with a stretching driving group 22 for driving the supporting seat 20 to move and drive the film 4 to stretch.

[0031] The two ends of the film 4 are placed on the supporting seats 20, and the two ends of the film 4 are fixed by the pressing group 21. At this time, the bending state simulation mechanism 3 is easy to support the lower end of the film 4 in an arc shape, so that the film 4 is bent with a certain arc, and then the two supporting seats 20 are driven by the stretching drive group 22 to move to perform a bidirectional stretching test on the film 4, and the stretching drive group 22 is coordinated with the existing tension sensor to record the maximum tension when the film 4 breaks, and then the tensile properties of the film 4 are analyzed through data.

[0032] See also Figure 1 , Figure 3 and Figure 4 The pressing group 21 includes a mounting groove 210 opened in the vertical section of the supporting seat 20, and a rotating shaft 211 is rotatably connected in the mounting groove 210. One end of the rotating shaft 211 slides through the supporting seat 20, and the other end of the rotating shaft 211 is connected to the supporting seat 20 by a threaded fit. A pressing seat 212 is rotatably connected to the mounting groove 210 and is sleeved on the rotating shaft 211 and connected to the rotating shaft 211 by a spline fit. The pressing seat 212 consists of an inclined section and a vertical section. The inclined section of the pressing seat 212 is rotatably sleeved on the rotating shaft 211, and the lower end of the vertical section of the pressing seat 212 is a semi-arc structure that matches the arc-shaped part of the supporting seat 20.

[0033] The end of the film 4 is placed on the supporting seat 20, and then the rotating shaft 211 is rotated. The rotating shaft 211 drives the arc-shaped part of the pressing seat 212 to rotate downward to press the film 4 against the arc-shaped corner of the supporting seat 20. The rotating shaft 211 moves axially along the rotating shaft 211 and is locked with the supporting seat 20 by means of threaded cooperation with the supporting seat 20. The arc-shaped pressing cooperation between the pressing seat 212 and the supporting seat 20 increases the pressing area between the two and the film 4, improves the stability of the fixation of the end of the film 4, and avoids the movement of the film 4, which affects the detection accuracy.

[0034] See also Figure 4 The arc-shaped portion of the lower end of the vertical section of the pressing seat 212 is fixedly sleeved with a rubber protective sheet, which not only increases the friction between the pressing seat 212 and the film 4, but also protects the film 4 when the film 4 is pressed, thereby preventing the film 4 from being damaged during the pressing and affecting the accuracy of the tensile performance test of the film 4.

[0035] See also Figure 1 , Figure 3 and Figure 4 The stretching drive group 22 includes a pulling frame 220 mounted on the supporting seat 20 and installed at both ends of the pressure seat 212 arranged along its length direction. The top of the inverted L-shaped platform 1 is horizontally slidably connected with a hook plate 221. The hook plate 221 is an inverted L-shaped structure and the horizontal section spans above the pulling frame 220. A one-way cylinder 222 is also installed on the top of the inverted L-shaped platform 1 through the base, and the telescopic end of the one-way cylinder 222 is fixedly connected to the hook plate 221.

[0036] The pulling and shifting frame 220 is always located between the two vertical sections of the hook plate 221 as the pressing seat 212 rotates. After the pressing seat 212 presses the film 4, the two one-way cylinders 222 pull the pulling and shifting frame 220 through the hook plates 221 connected to them respectively. The pulling and shifting frame 220 drives the pressing seat 212 and the supporting seat 20 to move, thereby pulling the two ends of the film 4, bidirectionally stretching the film 4, and cooperating with the bending state simulation mechanism 3 to detect the tensile properties of the film 4 under different bending states, thereby improving the accuracy of the quality detection of the tensile properties of the film 4.

[0037] See also Figure 3 and Figure 4 The sliding compensation group 23 includes an inverted T-shaped groove 230 opened on the top of the inverted L-shaped platform 1, and the lower end of the supporting seat 20 is equipped with an inverted T-shaped slide 231 slidably connected to the inverted T-shaped groove 230. When the bending state simulation mechanism 3 changes the bending degree of the film 4, the two ends of the film 4 pull the supporting seat 20 to drive the inverted T-shaped slide 231 to slide along the inverted T-shaped groove 230, thereby reducing the distance between the two supporting seats 20, so as to facilitate the film 4 to adjust and change to different bendings.

[0038] See also Figure 4 The horizontal section end of the support seat 20 and the horizontal section end of the inverted L-shaped platform 1 are both rotatably connected with a friction-reducing roller 201 to prevent the film 4 from contacting the support seat 20 or the end of the inverted L-shaped platform 1 and causing friction damage, thereby affecting the accuracy of the detection.

[0039] See also Figure 1 , Figure 2 and Figure 3 The bending state simulation mechanism 3 includes two bending simulation groups 30 symmetrically arranged up and down. The two bending simulation groups 30 are connected between the two inverted L-shaped platforms 1 by sliding up and down through a connecting group 31, and the film 4 is located between the two bending simulation groups 30.

[0040] See also Figure 1 , Figure 2 and Figure 3 The bending simulation group 30 includes a curved frame 301 and a bending deformation plate 302 (the bending support strength of the bending deformation plate 302 is greater than the tensile strength of the perovskite material film 4, and the bending shape of the bending deformation plate 302 remains unchanged during the biaxial stretching of the perovskite material film 4 and when the film 4 is broken, and the bending deformation plate 302 is easy to rebound to the initial state after deformation), the bending deformation plate 302 is an arc-shaped structure, and the two ends of the bending deformation plate 302 arranged along the width direction are both installed with fixing bars 303, The lower end of the fixed bar 303 is equipped with support rods 304 evenly arranged along its length direction. The three support rods 304 at the lower end of the same fixed bar 303 are horizontally slidably connected to the three horizontal sections of the sun-shaped frame 301 respectively. An auxiliary component for assisting the deformation of the bending deformation plate 302 is installed between the middle of the three horizontal sections of the sun-shaped frame 301 and the support rods 304 on both sides thereof. The sun-shaped frame 301 is equipped with a deformation driving component for driving the support rods 304 and the fixed bar 303 to drive the two ends of the bending deformation plate 302 to move for bending and deformation.

[0041] The connection group 31 drives the lower and upper bending simulation groups 30 to perform convex bending working state simulation and concave bending working state simulation of different bending degrees on the film 4 in turn.

[0042] When adjusting the bending degree of the bending deformation plate 302, the two fixed bars 303 are driven to move relative to each other through the support rod 304. The fixed bars 303 squeeze the bending deformation plate 302 while moving to bend and deform in the direction of the film 4. The bending support strength of the bending deformation plate 302 is greater than that of the perovskite material film 4. The bending deformation plate 302 pushes the film 4 to bend and deform during the bending process. Then, the film 4 is subjected to a biaxial stretching test through the biaxial stretching detection mechanism 2, thereby realizing a biaxial stretching test of the film 4 under different bending radii and different bending directions, simulating that the film 4 may experience biaxial stretching under different bending degrees in actual applications, and comprehensively evaluating the flexibility and tensile properties of the film 4 under different curvatures, thereby improving the accuracy of the quality detection of the film 4.

[0043] See also Figure 1 , Figure 2 and Figure 3 The auxiliary component includes a lifting rod 321 that is slidably connected to the middle part of the horizontal section of the sun-shaped frame 301. The three lifting rods 321 are connected to a push piece 322 at one end close to the film 4 for common rotation. The lifting rods 321 and the corresponding support rods 304 on both sides are hinged with push rods 323. The push rods 323 on both sides of the lifting rods 321 are arranged in an eight-shaped shape.

[0044] When the support rods 304 corresponding to the two sides of the lifting rod 321 move, the lifting rod 321 is pushed to move toward the film 4 through the push rod 323. The lifting rod 321 pushes the middle part of the bending deformation plate 302 through the pushing member 322 (such as a push roller), thereby assisting the bending deformation plate 302 to change the bending state, thereby improving the smoothness of the bending deformation of the bending deformation plate 302.

[0045] See also Figure 1 , Figure 2 and Figure 3 The deformation driving component includes a vertically penetrating slide groove 330 opened in the three horizontal sections of the sun-shaped frame 301, the support rod 304 is slidably connected to the slide groove 330, the lifting rod 321 is slidably connected to the slide groove 330, and the three support rods 304 located on the same side of the three horizontal sections of the sun-shaped frame 301 are connected by a connecting strip 331 that slides through the horizontal sections of the sun-shaped frame 301. A two-way hydraulic pressure 332 is installed on the middle slide groove 330 of the sun-shaped frame 301, and the two telescopic sections of the two-way hydraulic pressure 332 are respectively connected to the two corresponding support rods 304.

[0046] When the film 4 is transformed into different curved surface states, the bidirectional hydraulic pressure 332 pulls the two support rods 304 connected to it to move, and the support rods 304 drive the other support rods 304 to move synchronously through the connecting strips 331 and the fixing strips 303, thereby pulling the two ends of the bending deformation plate 302 to move toward the middle, so that the bending deformation plate 302 is bent and deformed in the direction of the film 4, simulating the bending state that occurs when the film 4 needs to resist different bending workpieces during actual use, and cooperating with the bidirectional stretching detection mechanism 2 to perform stretching performance testing under a variety of different bending states, comprehensively evaluating the stretching performance of the film 4, and thereby improving the accuracy of the quality detection of the film 4.

[0047] The deformation driving component cooperates with the bending deformation plate 302, thereby improving the convenience of the film 4 in changing different curved surface states.

[0048] See also Figure 1 , Figure 2 and Figure 3 The connection group 31 includes a connection frame 310 installed together on one side of two sun-shaped frames 301 arranged along the width direction of the inverted L-shaped platform 1, a supplementary seat 311 is installed on the top of the inverted L-shaped platform 1, and guide plates 312 are installed on both sides of the sun-shaped frame 301 on the upper side and are connected to the supplementary seats 311 on both sides for up and down sliding. Guide plates 313 are fixedly installed on both sides of the sun-shaped frame 301 on the lower side and are connected to the vertical section of the inverted L-shaped platform 1 for up and down sliding.

[0049] By connecting with the top of the sun-shaped frame 301 on the upper side through an existing driving source (such as an electric telescopic rod or a hydraulic cylinder) and pushing the sun-shaped frame 301 to move up and down, the two sun-shaped frames 301 move up and down synchronously under the connection of the connecting frame 310, so that the two bending simulation groups 30 respectively transform the different curved surface states of the film 4 in the bending direction, thereby improving the comprehensiveness of the tensile performance detection of the film 4, and the supplementary seat 311 cooperates with the guide plate 1 312, and the guide plate 2 313 slides with the vertical section of the inverted L-shaped platform 1, so as to support and guide the movement of the two sun-shaped frames 301, thereby improving the stability of the two sun-shaped frames 301 during the movement.

[0050] See also Figure 3 and Figure 4 The lower end of the horizontal section of the inverted L-shaped platform 1 is connected to a push rod 10 that slides up and down and penetrates into the inverted T-shaped groove 230. A swing rod 11 is hinged between the push rod 10 and the inverted T-shaped slide 231. The side wall of the t-shaped frame 301 located on the lower side is rotatably installed with a push block 12 corresponding to the push rod 10 through a torsion spring rod.

[0051] Before the film 4 is tested, the bending state simulation mechanism 3 moves upward, and pushes the push rod 10 through the push block 12. The push rod 10 pushes the inverted T-shaped slide 231 through the swing rod 11, driving the supporting seat 20 to move to the side of the vertical section of the inverted L-shaped platform 1 until the inverted T-shaped slide 231 is tightly pressed against the inverted T-shaped groove 230, so that the distance between the two supporting seats 20 in the initial state is the same as the distance between the ends of the horizontal sections of the inverted L-shaped platform 1 to which they are connected, so that when the film 4 is fixed later, the two supporting seats 20 can fully fix the ends of the film 4, and at this time, the push block 12 rotates downward along the torsion spring rod under the pressure of the push rod 10.

[0052] During operation, the two ends of the film 4 are placed on the supporting seats 20, and the two ends of the film 4 are fixed by the pressing group 21. At this time, the bending state simulation mechanism 3 supports the lower end of the film 4 in an arc shape, so that the film 4 has a certain curvature, and then the two supporting seats 20 are driven by the stretching drive group 22 to move to perform a bidirectional stretching test on the film 4, and the stretching drive group 22 is coordinated with the existing tension sensor to record the maximum tension when the film 4 breaks.

[0053] First, the convex bending working state of the film 4 with different bending degrees is simulated by the bending simulation group 30 located on the lower side. When the bending degree of the bending deformation plate 302 is adjusted, the two fixed bars 303 are driven to move relative to each other through the support rod 304 of the deformation driving component. While moving, the fixed bars 303 squeeze the bending deformation plate 302 to bend and deform in the direction of the film 4. The bending support strength of the bending deformation plate 302 is greater than that of the perovskite material film 4. The bending deformation plate 302 pushes the film 4 to bend and deform during the bending process. Then, the film 4 is subjected to a biaxial stretching test by the biaxial stretching detection mechanism 2, thereby realizing a biaxial stretching test of the film 4 under different bending radii and different bending directions, simulating that the film 4 may undergo biaxial stretching under different bending degrees in actual applications, comprehensively evaluating the flexibility and tensile properties of the film 4 under different curvatures, and improving the accuracy of the quality detection of the film 4.

[0054] Then, the two bending simulation groups 30 are driven to move downward through the connection group 31 , so that the bending simulation group 30 located on the upper side contacts the film 4 to simulate the concave bending working state of the film 4 .

[0055] Finally, the tensile properties of film 4 were analyzed through data analysis.

[0056] In the description of the present invention, it is necessary to understand that the terms "length", "width", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0057] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A perovskite film quality detection device, characterized in that: include: Two inverted L-shaped platforms (1), the tops of the two inverted L-shaped platforms (1) are jointly equipped with a bidirectional stretching detection mechanism (2) for fixing and stretching the two ends of the film (4), and a bending state simulation mechanism (3) is also installed on the two inverted L-shaped platforms (1); The biaxial stretching detection mechanism (2) comprises a supporting seat (20) slidably connected to the top of the inverted L-shaped platform (1); the supporting seat (20) is an L-shaped structure with an arc-shaped corner; the bottom of the supporting seat (20) is connected to the top of the inverted L-shaped platform (1) via a sliding compensation group (23); a pressing group (21) for pressing the end of the film (4) is installed on the supporting seat (20); and a stretching driving group (22) for driving the supporting seat (20) to move and drive the film (4) to stretch is also installed on the inverted L-shaped platform (1); The bending state simulation mechanism (3) comprises two bending simulation groups (30) arranged symmetrically up and down, the two bending simulation groups (30) are connected between the two inverted L-shaped platforms (1) by sliding up and down through a connection group (31), and the film (4) is located between the two bending simulation groups (30); The bending simulation group (30) comprises a curved frame (301) and a bending deformation plate (302), wherein the bending deformation plate (302) is in an arc-shaped structure, and both ends of the bending deformation plate (302) arranged along its width direction are installed with fixing bars (303), and the lower end of the fixing bar (303) is installed with support rods (304) evenly arranged along its length direction, and three support rods (304) at the lower end of the same fixing bar (303) are respectively horizontally slidably connected to three transverse horizontal sections of the curved frame (301), and an auxiliary component for assisting the deformation of the bending deformation plate (302) is installed between the middle of the three transverse horizontal sections of the curved frame (301) and the support rods (304) on both sides thereof, and a deformation driving component for driving the support rods (304) and the fixing bar (303) to drive the two ends of the bending deformation plate (302) to move for bending deformation is installed on the curved frame (301).

2. A perovskite film quality detection device according to claim 1, characterized in that: The pressing group (21) comprises a mounting groove (210) provided in a vertical section of a supporting seat (20), a rotating shaft (211) being rotatably connected in the mounting groove (210), one end of the rotating shaft (211) slidingly passing through the supporting seat (20), the other end of the rotating shaft (211) being connected to the supporting seat (20) by means of threaded engagement, a pressing seat (212) being rotatably connected on the mounting groove (210) and sleeved on the rotating shaft (211) and connected to the rotating shaft (211) by means of spline engagement, the pressing seat (212) being composed of an inclined section and a vertical section, the inclined section of the pressing seat (212) being rotatably sleeved on the rotating shaft (211), and the lower end of the vertical section of the pressing seat (212) being in a semi-arc structure that is matched with an arc-shaped portion of the supporting seat (20).

3. A perovskite film quality detection device according to claim 1, characterized in that: The auxiliary component comprises a lifting rod (321) which is slidably connected to the middle part of the horizontal section of the sun-shaped frame (301) up and down, and one end of the three lifting rods (321) close to the film (4) is rotatably connected to a pushing piece (322), and a push rod (323) is hinged between the lifting rod (321) and the corresponding support rods (304) on both sides thereof, and the push rods (323) on both sides of the lifting rod (321) are arranged in an eight-shaped shape.

4. A perovskite film quality detection device according to claim 3, characterized in that: The deformation driving assembly comprises a slide groove (330) which is opened in three horizontal sections of the shaped frame (301) and passes through the slide groove (330) vertically, the support rod (304) is slidably connected to the slide groove (330), the lifting rod (321) is slidably connected to the slide groove (330) vertically, the three support rods (304) located on the same side of the three horizontal sections of the shaped frame (301) are connected by a connecting strip (331) which slides through the horizontal sections of the shaped frame (301), and a bidirectional hydraulic pressure (332) is installed on the middle slide groove (330) of the shaped frame (301), and the two telescopic sections of the bidirectional hydraulic pressure (332) are respectively connected to the two corresponding support rods (304).

5. A perovskite film quality detection device according to claim 2, characterized in that: The stretching drive group (22) comprises a pulling frame (220) mounted on a supporting seat (20) and installed at both ends of a pressing seat (212) arranged along its length direction; a hook plate (221) is horizontally slidably connected to the top of the inverted L-shaped platform (1); the hook plate (221) is an inverted U-shaped structure and its horizontal section spans above the pulling frame (220); a one-way cylinder (222) is also installed on the top of the inverted L-shaped platform (1) through a base; the telescopic end of the one-way cylinder (222) is fixedly connected to the hook plate (221).

6. The perovskite film quality detection device according to claim 1, characterized in that: The connection group (31) comprises a connection frame (310) which is installed together on one side of two yoke-shaped frames (301) arranged along the width direction of the inverted L-shaped platform (1); a supplement seat (311) is installed on the top of the inverted L-shaped platform (1); guide plates (312) which are slidably connected to the supplement seats (311) on both sides of the yoke-shaped frame (301) on the upper side are installed on both sides; guide plates (313) which are slidably connected to the vertical section of the inverted L-shaped platform (1) are fixedly installed on both sides of the yoke-shaped frame (301) on the lower side.

7. A perovskite film quality detection device according to claim 1, characterized in that: The sliding compensation group (23) comprises an inverted T-shaped groove (230) opened on the top of the inverted L-shaped platform (1), and an inverted T-shaped sliding seat (231) slidably connected to the inverted T-shaped groove (230) is installed at the lower end of the supporting seat (20).

8. The perovskite film quality detection device according to claim 1, characterized in that: The lower end of the horizontal section of the inverted L-shaped platform (1) is connected to a push rod (10) that slides up and down and penetrates into the inverted T-shaped groove (230), a swing rod (11) is hinged between the push rod (10) and the inverted T-shaped sliding seat (231), and a push block (12) corresponding to the push rod (10) is rotatably installed on the side wall of the lower side of the tee-shaped frame (301) through a torsion spring rod.

9. The perovskite film quality detection device according to claim 1, characterized in that: The end of the horizontal section of the supporting seat (20) and the end of the horizontal section of the inverted L-shaped platform (1) are both rotatably connected with anti-friction rollers (201).

10. The perovskite film quality detection device according to claim 2, characterized in that: The arc-shaped portion of the lower end of the vertical section of the pressing seat (212) is fixedly sleeved with a rubber protective sheet.

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