Detection equipment for perovskite photovoltaic module

Abstract

The utility model discloses a detection device of a perovskite photovoltaic module. The detection equipment of the perovskite photovoltaic module comprises a detection darkroom, an electroluminescence image acquisition unit, a photoluminescence image acquisition unit and a control unit, the electroluminescence image acquisition unit is located on a first space plane, and the photoluminescence image acquisition unit is located on a second space plane. The first space plane and the second space plane are located above the third space plane, a first height difference exists between the first space plane and the third space plane, a second height difference exists between the second space plane and the third space plane, and the first height difference is larger than the second height difference.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of detection equipment of perovskite photovoltaic module, belong to photovoltaic module detection technical field. BACKGROUND

[0002] Perovskite photovoltaic module is increasingly committed to the research and production of perovskite photovoltaic module by more and more enterprises due to its advantages such as high conversion efficiency, weak light effect, low manufacturing cost and energy consumption. In the process of research and production of perovskite photovoltaic module, related detection equipment is essential. Photoluminescence and electroluminescence are effective means to detect photovoltaic module defects, but perovskite photovoltaic module is different from traditional crystalline silicon module, and it is urgent to develop related detection equipment for perovskite photovoltaic module.

[0003] Currently, photoluminescence and electroluminescence equipment for perovskite photovoltaic module are almost independent detection, which increases equipment footprint, equipment purchase cost and operation process for post-process component detection on perovskite production line and component detection in reliability laboratory, increases production line process, and is not conducive to component production and cost control.

[0004] Specifically, the photoluminescence and electroluminescence detection equipment for perovskite photovoltaic module at present stage is almost independent detection, which not only increases equipment footprint, but also increases equipment purchase cost and operation process, resulting in longer production time, which is not conducive to perovskite photovoltaic module production. At present stage, photoluminescence equipment and electroluminescence equipment for perovskite photovoltaic module (1m*2m) are all adopted by multiple cameras to shoot and splice the shooting photos together, but perovskite photovoltaic module has multiple sub-cell strips inside, which causes inaccurate focusing during photo splicing, resulting in splicing misplacement, affecting the final photoluminescence or electroluminescence imaging picture, and increasing the difficulty of analysis or causing analysis error.

[0005] CN207743935U discloses a device for inspecting photovoltaic modules, which integrates photoluminescence and electroluminescence detection in one device, as shown in Figure 1 The device for inspecting photovoltaic modules includes a first camera for detecting EL generated by a power source and a second camera for detecting PL generated by a light source, both cameras can be read by the same computing device or through separate computing devices, both cameras can obtain separate PL and EL images without having to pass the module through the device twice or reverse the direction of the scanning mechanism, but the two cameras in the device are arranged at intervals in the scanning direction, which still needs to splice the shooting photos together when collecting images. UTILITY MODEL CONTENTS

[0006] The utility model discloses a detection equipment of perovskite photovoltaic module, to overcome the deficiency in the prior art.

[0007] To realize foregoing utility model purpose, the utility model adopts technical scheme including:

[0008] The utility model discloses a detection equipment of perovskite photovoltaic module, to overcome the deficiency in the prior art.

[0009] Detection darkroom;

[0010] Electroluminescence image acquisition unit, be provided in detection darkroom;

[0011] Photoluminescence image acquisition unit, be provided in detection darkroom;

[0012] Control unit is coupled with electroluminescence image acquisition unit and photoluminescence image acquisition unit to control electroluminescence image acquisition unit and photoluminescence image acquisition unit,

[0013] Electroluminescence image acquisition unit photoluminescence image acquisition unit, electroluminescence image acquisition unit is located in the first space plane of a three-dimensional coordinate system, and photoluminescence image acquisition unit is located in the second space plane of three-dimensional coordinate system, and the perovskite photovoltaic module to be detected is located in the third space plane in three-dimensional coordinate system;

[0014] The first space plane, the second space plane are located above the third space plane along the z axis of three-dimensional coordinate system, and on the z axis of three-dimensional coordinate system, the first space plane and the third space plane have the first height difference between, and the second space plane and the third space plane have the second height difference, and the first height difference is greater than the second height difference.

[0015] The first height difference is configured to make electroluminescence image acquisition unit acquire the full area electroluminescence image of the perovskite photovoltaic module to be detected at the third space plane, and the second height difference is configured to make photoluminescence image acquisition unit acquire the full area photoluminescence image of the perovskite photovoltaic module to be detected at the third space plane.

[0016] Compared with the prior art, the utility model has the advantages of including:

[0017] The utility model embodiment provides a kind of perovskite photovoltaic module detection equipment, the position of electroluminescence image acquisition unit and photoluminescence image acquisition unit is located in the upper of sample stage for bearing perovskite photovoltaic module, and, electroluminescence image acquisition unit compared with photoluminescence image acquisition unit has higher position, while, by setting reasonable height difference and using high-pixel industrial camera, to realize the photoluminescence / electroluminescence image of single camera can be shot to full-area large-size perovskite photovoltaic module, to finally present a photo (photoluminescence photo or electroluminescence photo), to avoid picture splicing, reduce the difficulty of analysis and the risk of analysis error;Meanwhile, the number of camera used is greatly reduced, to further reduce equipment cost. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any inventive labor.

[0019] Figure 1 is a structural schematic diagram of a device for checking a photovoltaic module in the prior art;

[0020] Figure 2 is a schematic diagram of the external structure of a perovskite photovoltaic module detection device provided in a typical embodiment of the present application;

[0021] Figure 3 is a schematic diagram of the top perspective structure of a perovskite photovoltaic module detection device provided in a typical embodiment of the present application;

[0022] Figure 4 is a schematic diagram of the internal structure of a perovskite photovoltaic module detection device provided in a typical embodiment of the present application;

[0023] Figure 5 is a schematic diagram of the external structure of a perovskite photovoltaic module detection device provided in a typical embodiment of the present application;

[0024] Figure 6 is a schematic diagram of the configuration of the control unit and the electroluminescence image acquisition unit and the photoluminescence image acquisition unit provided in a typical embodiment of the present application;

[0025] Figure 7 is an electroluminescence image of a perovskite photovoltaic module with a size of 1m*2m obtained by a perovskite photovoltaic module detection device provided in a typical embodiment of the present application;

[0026] Figure 8 The photoluminescence image of the perovskite photovoltaic module with a size of 1m*2m is obtained by the detection equipment of the perovskite photovoltaic module provided in a typical embodiment case of the utility model. DETAILED DESCRIPTION

[0027] In view of the deficiencies in the prior art, the present inventors have obtained the technical solution of the utility model through long-term research and a large number of practices. The technical solution, its implementation process and principles will be further explained as follows.

[0028] The embodiment of the utility model provides a kind of detection equipment of perovskite photovoltaic module, it includes:

[0029] Detection darkroom;

[0030] Electroluminescence image acquisition unit is arranged in the detection darkroom;

[0031] Photoluminescence image acquisition unit is arranged in the detection darkroom;

[0032] Control unit is coupled with the electroluminescence image acquisition unit and the photoluminescence image acquisition unit, to control the electroluminescence image acquisition unit and the photoluminescence image acquisition unit,

[0033] In the detection darkroom, the electroluminescence image acquisition unit is located in the first space plane of a three-dimensional coordinate system, the photoluminescence image acquisition unit is located in the second space plane of the three-dimensional coordinate system, and the perovskite photovoltaic module to be detected is located in the third space plane in the three-dimensional coordinate system;The first space plane, the second space plane are located above the third space plane along the z axis of the three-dimensional coordinate system, and on the z axis of the three-dimensional coordinate system, the first space plane and the third space plane have a first height difference, the second space plane and the third space plane have a second height difference, and the first height difference is greater than the second height difference;

[0034] The first height difference is configured to enable the electroluminescence image acquisition unit to acquire the electroluminescence image of the full area of the perovskite photovoltaic module to be detected, and the second height difference is configured to enable the photoluminescence image acquisition unit to acquire the photoluminescence image of the full area of the perovskite photovoltaic module to be detected.

[0035] Further, on the z axis of the three-dimensional coordinate system, the first space plane and the second space plane have a third height difference, and the third height difference is greater than or equal to 0.1m.

[0036] Further, the second height difference is greater than or equal to 0.9m.

[0037] Further, the detection device of the perovskite photovoltaic module further comprises a photoluminescence line-scan laser, which is arranged in the detection darkroom and matched with the photoluminescence image acquisition unit, and is used at least for providing excitation light to the perovskite photovoltaic module to be detected.

[0038] Further, the photoluminescence line-scan laser is arranged on a fourth spatial plane of the three-dimensional coordinate system, which is below the second spatial plane on the z-axis, and has a fourth height difference with the second spatial plane, and the fourth height difference is greater than or equal to 0.3 m.

[0039] Further, the excitation light provided by the photoluminescence line-scan laser has a wavelength of 360 nm to 450 nm.

[0040] Further, the detection device of the perovskite photovoltaic module further comprises a direct-current electronic load, which is used at least for providing excitation voltage or current to the perovskite photovoltaic module to be detected.

[0041] Further, the direct-current electronic load provides a voltage of 0 to 600 V and a current of 0 to 5 A.

[0042] Further, the electroluminescence image acquisition unit has a resolution of greater than or equal to 4K and a pixel of greater than or equal to 24 million, and the filter of the electroluminescence image acquisition unit can filter out light of greater than 850 nm; the photoluminescence image acquisition unit has a resolution of greater than or equal to 4K and a pixel of greater than or equal to 8 million, and the photoluminescence image acquisition unit has a band-pass filter of 500 nm to 900 nm.

[0043] Further, the detection device of the perovskite photovoltaic module further comprises a first moving assembly and / or a second moving assembly, which are arranged in the detection darkroom and connected with the control unit, the first moving assembly is used at least for carrying the perovskite photovoltaic module to be detected and driving the perovskite photovoltaic module to be detected to ascend and descend along the z-axis of the three-dimensional coordinate system and to translate in the xy plane of the three-dimensional coordinate system, the photoluminescence image acquisition unit is mounted on the second moving assembly, and the second moving assembly is used at least for driving the photoluminescence image acquisition unit and the photoluminescence line-scan laser to translate relative to the perovskite photovoltaic module to be detected in the xy plane of the three-dimensional coordinate system.

[0044] Further, the photoluminescence image acquisition unit and the photoluminescence line-scan laser are synchronously moved under the driving of the second moving assembly.

[0045] Further, surfaces of the first moving assembly and the second moving assembly are black coating.

[0046] In a more specific embodiment, the detection device for perovskite photovoltaic module further comprises a sample stage and a sample tray, which are arranged in the detection darkroom, the sample tray is arranged on the sample stage, the sample tray is used to carry the perovskite photovoltaic module to be detected, and the sample stage is in transmission cooperation with the first moving assembly and can be lifted along the z-axis of the three-dimensional coordinate system and translated in the xy plane of the three-dimensional coordinate system under the driving of the first moving assembly.

[0047] Further, surfaces of the sample stage and the sample tray are black coating.

[0048] Further, the sample tray is an insulating member.

[0049] In a more specific embodiment, the detection device for perovskite photovoltaic module further comprises a limit sensor, which is arranged in the detection darkroom and is used to monitor the spatial position of the sample stage at least, and the limit sensor is connected with the control unit.

[0050] Further, the detection device for perovskite photovoltaic module comprises a test box, the detection darkroom is arranged in the test box, and the test box has a box door which can be opened and closed.

[0051] Further, the box door is an electrically controlled lifting door.

[0052] Further, the outside of the box body is further provided with a three-color indicator light and a code scanner, and the three-color indicator light and the code scanner are connected with the control unit.

[0053] It should be noted that the detection device for perovskite photovoltaic module provided in the embodiments of the present application can be applied to the detection and related test laboratory use after the production of the top electrode of the perovskite photovoltaic module is completed.

[0054] The technical scheme, its implementation process and principles will be further explained in the following combined with the drawings and specific implementation cases, unless specifically stated, the industrial camera, line scanning laser, direct current electronic load, controller and its attached control software, three-axis motion platform, translation platform, motor, limit sensor and code scanner used in the embodiments of the present application can be known in the art, which can be obtained by market purchase or known customization process in the art, and specific product model and working principle are not explained too much here.

[0055] In a more typical embodiment, please refer to Figures 2-6A detection device of a perovskite photovoltaic module, comprising a test box, a sample stage 11, a sample tray 17, an electroluminescence image acquisition camera (i.e. the aforementioned electroluminescence image acquisition unit, hereinafter the same) 16, a direct current electronic load 24, a photoluminescence image acquisition camera (i.e. the aforementioned photoluminescence image acquisition unit, hereinafter the same) 20, a photoluminescence line-scan laser, a sample stage moving assembly 18 (i.e. the aforementioned first moving assembly, hereinafter the same), a photoluminescence image acquisition moving assembly (i.e. the aforementioned second moving assembly, hereinafter the same), and a control unit,

[0056] The inside of the test box has a detection darkroom, the sample stage 11, the sample tray 17, the electroluminescence image acquisition camera 16, the direct current electronic load 24, the photoluminescence image acquisition camera 20, the photoluminescence line-scan laser, the sample stage moving assembly 18, and the photoluminescence image acquisition moving assembly are arranged in the detection darkroom, the sample stage 11 is assembled on the sample stage moving assembly 18, the sample tray 17 is arranged on the sample stage 11, the photoluminescence image acquisition camera 20 and the photoluminescence line-scan laser are assembled on the photoluminescence image acquisition moving assembly, and the control unit is arranged outside the test box, and the control unit is electrically connected / communicatively connected with the electroluminescence image acquisition camera 16, the photoluminescence image acquisition camera 20, the sample stage moving assembly 18, and the photoluminescence image acquisition moving assembly.

[0057] Specifically, the detection darkroom is mainly used for the light-proof environment required for photoluminescence and electroluminescence detection of the perovskite photovoltaic module, reduces external interference, and ensures the accuracy of the photoluminescence and electroluminescence detection results of the perovskite photovoltaic module.

[0058] More specifically, please further refer to Figure 2 and Figure 3The test box comprises a box body, a box door and a box door lifting assembly. The box door and the box body jointly enclose a detection darkroom. The box door is a liftable door. The box door is in transmission cooperation with the box door lifting assembly and performs lifting action under the driving of the box door lifting assembly to open and close the detection darkroom. As a typical scheme, the test box can comprise two box doors 2. Correspondingly, two windows are arranged on the box body. One of the two windows is an entrance and the other is an exit. The two windows can be oppositely arranged. The two box doors 2 are respectively used to open and close the two windows. As a typical embodiment, the box door lifting assembly comprises a lifting door shaft 5 / 10 and a lifting door motor 6 / 9. The lifting door shaft 5 / 10 can be fixedly assembled on the box body. Each box door 2 is hung on the box body through two lifting belts 1 / 4. The box door 2 is in movable cooperation with the lifting door shaft 5 / 10 through a sliding block. The box door 2 is in transmission cooperation with the lifting door motor 6 / 9 and can be lifted along the lifting door shaft 5 / 10 under the driving of the lifting door motor 6 / 9. The lifting door motor 6 / 9 is connected with a control unit. The working state of the box door can be adjusted through the control unit. More specifically, in order to better seal the box door 2 with the box body and ensure the airtightness of the detection darkroom, a clamping groove 14 / 15 matched with the box door 2 is arranged on the box body. When the box door 2 is lowered, the bottom of the box door 2 is embedded in the clamping groove 14 / 15 to ensure the airtightness between the box door and the box body. Of course, a sealing rubber strip or the like can be arranged around the inside of the clamping groove to achieve better sealing effect. It should be noted that the lifting door motor 6 / 9 can be replaced by a driving cylinder or the like with the same function.

[0059] Specifically, the sample stage 11 and the sample tray 17 located in the detection darkroom are used to carry the perovskite photovoltaic module 25 to be detected. The sample tray 17 is used to directly contact the perovskite photovoltaic module to be detected. The sample tray 17 can be directly fixed with the sample stage 11 or can be detachable. Of course, the sample tray 17 and the sample stage 11 can be integrated, i.e., they are an integral component. It should be noted that the surface coating of the sample stage 11 and the sample tray 17 is preferably black to avoid affecting the result of photoluminescence detection. In addition, the sample tray 17 directly contacting the perovskite photovoltaic module to be detected should be selected as an insulating component to ensure safety during electroluminescence detection of the perovskite photovoltaic module.

[0060] Specifically, the sample stage 11 is assembled on a sample stage moving assembly 18, which is used to drive the sample stage 11 to move up and down along the z-axis of a three-dimensional coordinate system and to move in the xy plane of the three-dimensional coordinate system in the detection darkroom. It can be understood that the sample stage 11 / sample tray 17 in the detection darkroom is used to support the support surface of the perovskite photovoltaic module, which is parallel to the xy plane of the three-dimensional coordinate system. Through the sample stage moving assembly 18, the perovskite photovoltaic module can be lifted, translated, transferred to or moved out of the test area, and lifted to a predetermined detection height position, so as to better cooperate with the electroluminescence image acquisition camera 16 and the photoluminescence image acquisition camera 20, and realize clearer and more accurate images. For example, the sample stage moving assembly 18 can be a three-axis motion platform or a five-axis motion platform, and the structure and working mode of the three-axis motion platform or the five-axis motion platform are known in the art, and will not be explained in detail here.

[0061] Specifically, the photoluminescence line-scan laser is used to provide excitation light to the perovskite photovoltaic module to be detected, and the photoluminescence image acquisition camera 20 is used to acquire the photoluminescence image of the perovskite photovoltaic module to be detected. The photoluminescence image acquisition camera 20 moves synchronously with the photoluminescence line-scan laser and acquires images. Under this synchronous operation, the image acquisition and shooting can be efficiently performed. Specifically, the electroluminescence image acquisition camera 16 and the direct current electronic load 24 are used to provide excitation voltage or current to the perovskite photovoltaic module to be detected, and the electroluminescence image acquisition camera 16 is used to acquire the electroluminescence image of the perovskite photovoltaic module to be detected.

[0062] Specifically, the photoluminescence image acquisition camera 20 and the photoluminescence line-scan laser are assembled on a photoluminescence image acquisition moving assembly, which is used to drive the photoluminescence image acquisition camera 20 and the photoluminescence line-scan laser to move in the xy plane of the three-dimensional coordinate system, so as to realize photoluminescence image acquisition of the entire area of the perovskite photovoltaic module. As a typical embodiment, the photoluminescence image acquisition moving assembly can include a translation bracket 21, two parallel translation shafts 12 / 13, and translation drive motors 7 / 8. The translation bracket 21 is arranged on the translation shafts 12 / 13 and movably cooperates with the translation shafts 12 / 13 (for example, through a guide rail and a sliding block structure). The translation drive motors 7 / 8 are in transmission cooperation with the translation bracket 21 and drive the translation bracket 21 to reciprocate along the translation shafts 12 / 13. The photoluminescence image acquisition camera 20 and the photoluminescence line-scan laser are both mounted on the translation bracket 21. Of course, the translation drive motors 7 / 8 can be replaced by driving cylinders with the same function.

[0063] More specifically, the electroluminescence image acquisition camera 16 is located at a first spatial plane a, the photoluminescence image acquisition camera 20 is located at a second spatial plane β, the perovskite photovoltaic component to be detected is located at a third spatial plane (the spatial plane where the perovskite photovoltaic component to be detected is located can be regarded as the spatial plane where the sample tray 17 is located) γ, the photoluminescence line-scan laser is arranged at a fourth spatial plane, the first spatial plane a, the second spatial plane β and the fourth spatial plane are located above the third spatial plane γ along the z-axis of the three-dimensional coordinate system, the second spatial plane β is located above the fourth spatial plane, and, along the z-axis of the three-dimensional coordinate system, there is a first height difference H1 between the first spatial plane a and the third spatial plane γ, and there is a second height difference H2 between the second spatial plane β and the third spatial plane γ, the first height difference H1 is greater than the second height difference H2, at the same time, the first height difference H1 is configured to enable the electroluminescence image acquisition camera 16 to acquire an electroluminescence image of the full area of the perovskite photovoltaic component to be detected located at the third spatial plane γ, and the second height difference H2 is configured to enable the photoluminescence image acquisition camera 20 to acquire a photoluminescence image of the full area of the perovskite photovoltaic component to be detected located at the third spatial plane γ, that is, the electroluminescence image acquisition camera 16, the photoluminescence image acquisition camera 20 and the photoluminescence line-scan laser are all located above the sample tray 17 along the z-axis, and the photoluminescence image acquisition camera 20 is located above the photoluminescence line-scan laser along the z-axis.

[0064] In a typical embodiment, the second height difference H2≥0.9m, and, along the z-axis of the three-dimensional coordinate system, there is a third height difference between the first spatial plane a and the second spatial plane β, the third height difference H3≥0.1m, and there is a fourth height difference between the fourth spatial plane and the second spatial plane β, the fourth height difference≥0.3m, under the relative position configuration, it can be ensured that the photoluminescence image acquisition is not affected and the photoluminescence / electroluminescence imaging of the full area of the perovskite photovoltaic component (the size≤1m*2m) can be clearly taken.

[0065] Specifically, the electroluminescence image acquisition camera 16 and the photoluminescence image acquisition camera 20 are both industrial cameras, the resolution of the electroluminescence image acquisition camera 16 is ≥4K, and the pixel is ≥24 million, the resolution of the photoluminescence image acquisition camera 20 is ≥4K, and the pixel is ≥8 million, under this parameter, one camera can guarantee that the perovskite photovoltaic module (size ≤1m*2m) can be completely photographed and the image is clear. More specifically, the lenses of the electroluminescence image acquisition camera 16 and the photoluminescence image acquisition camera 20 both contain filters, the lens of the photoluminescence image acquisition camera 20 is a 500nm-900nm bandpass filter, under this filter, the photoluminescence image can be guaranteed not to be affected by other factors, and the imaging effect is best; the filter of the lens of the electroluminescence image acquisition camera 16 can filter out light >850nm, under this filter, the electroluminescence image can be guaranteed not to be affected by other factors, and the imaging effect is best.

[0066] Specifically, the excitation light provided by the photoluminescence line-scan laser has a wavelength of 360nm-450nm, and the laser in this wavelength range can well excite the perovskite photovoltaic module, so that the photoluminescence imaging is clearer. Specifically, the voltage provided by the direct current electronic load is 0-600V, and the current is 0-5A, and the voltage and current in this range can be applied to all sizes of perovskite photovoltaic modules for electroluminescence detection at the present stage.

[0067] Specifically, in order to monitor and learn the position of the perovskite photovoltaic module in the detection darkroom, a limit sensor can also be arranged in the detection darkroom, the limit sensor is connected with the control unit, and the control unit can adjust the working state of each functional component according to the position of the perovskite photovoltaic module in the detection darkroom.

[0068] It should be noted that the electroluminescence image acquisition camera 16 can be directly fixed on the test box, of course, the electroluminescence image acquisition camera 16 can also be fixed on the support frame located in the detection darkroom. In order to ensure that the photoluminescence image is not disturbed by the component platform, ensure the accuracy of image imaging, and ensure the safety of electroluminescence detection, the surface of the functional mechanism located in the detection darkroom is preferably provided with a black coating, and the functional mechanism in contact with the perovskite photovoltaic module to be tested and the direct current electronic load should be provided with an insulating layer, etc.

[0069] Specifically, the control unit can include a computer, a control unit operation interface (such as a PLC operation screen, etc.) 22, a function button 23, etc. The control unit operation interface 22 and the function button 23 are arranged outside the test box. The computer includes a control system of various functional components / mechanisms, a parameter setting system of the electroluminescence image acquisition camera 16 and the photoluminescence image acquisition camera 20, an image shooting and saving transmission system, etc. These are all conventional configurations required for detection and are known in the art, and will not be described in detail here.

[0070] Specifically, the test box is also provided with a three-color indicator light 3 and a code scanner 19 outside the test box. The three-color indicator light 3 and the code scanner 19 are connected with the control unit. The three-color indicator light 3 contains a buzzer alarm. The three-color indicator light 3 can indicate the running state of the equipment. For example, when the green light of the three-color indicator light 3 is on, it represents that the equipment is in standby state. When the green light is on, it represents that the equipment is in running state. When the red light is on, it represents that the equipment is in fault or other warning state. The code scanner 19 is arranged in the detection darkroom and is used for scanning the two-dimensional code mark on the perovskite photovoltaic module to be detected and obtaining the unique number code of the perovskite photovoltaic module to be detected. The control unit can generate a picture name format corresponding to the collected image according to the number code of the perovskite photovoltaic module to be detected obtained by the scanner 19.

[0071] The structural configuration of the detection equipment for perovskite photovoltaic modules provided in the embodiment of the utility model for detecting the perovskite photovoltaic module can be referred to as shown in Figure 6 The electroluminescence image of the perovskite photovoltaic module with a size of 1m*2m obtained by the detection equipment for perovskite photovoltaic modules provided in the embodiment of the utility model is as shown in Figure 7 The photoluminescence image is as shown in Figure 8

[0072] The detection equipment for perovskite photovoltaic modules provided in the embodiment of the utility model sets the positions of the electroluminescence image acquisition unit and the photoluminescence image acquisition unit above the sample stage for carrying the perovskite photovoltaic module. The electroluminescence image acquisition unit has a higher position compared with the photoluminescence image acquisition unit. At the same time, by setting a reasonable height difference and using a high-pixel industrial camera, the photoluminescence / electroluminescence image of the full-area large-size perovskite photovoltaic module can be shot by using a single camera. Thus, a photo (photoluminescence photo or electroluminescence photo) is finally presented. In this way, the picture splicing is avoided, the analysis difficulty and the risk of analysis error are reduced. At the same time, the number of cameras used is greatly reduced, thereby further reducing the equipment cost.

[0073] ​It should be understood that the above embodiments are only to illustrate the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made in accordance with the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A device for detecting a perovskite photovoltaic assembly, characterized in that, The method comprises the following steps: a detection darkroom; an electroluminescence image acquisition unit arranged in the detection darkroom; a photoluminescence image acquisition unit arranged in the detection darkroom; a control unit coupled to the electroluminescence image acquisition unit and the photoluminescence image acquisition unit to control the electroluminescence image acquisition unit and the photoluminescence image acquisition unit, in the detection darkroom, the electroluminescence image acquisition unit is located on a first spatial plane of a three-dimensional coordinate system, the photoluminescence image acquisition unit is located on a second spatial plane of the three-dimensional coordinate system, and the perovskite photovoltaic component to be detected is located on a third spatial plane in the three-dimensional coordinate system; the first spatial plane and the second spatial plane are located above the third spatial plane along the z-axis of the three-dimensional coordinate system, and on the z-axis of the three-dimensional coordinate system, the first spatial plane and the third spatial plane have a first height difference, the second spatial plane and the third spatial plane have a second height difference, and the first height difference is greater than the second height difference; the first height difference is configured to enable the electroluminescence image acquisition unit to acquire an electroluminescence image of the entire area of the perovskite photovoltaic component to be detected, and the second height difference is configured to enable the photoluminescence image acquisition unit to acquire a photoluminescence image of the entire area of the perovskite photovoltaic component to be detected.

2. The device for detecting a perovskite photovoltaic module according to claim 1, characterized in that: on the z-axis of the three-dimensional coordinate system, the first spatial plane and the second spatial plane have a third height difference, and the third height difference is greater than or equal to 0.1 m.

3. The device for detecting a perovskite photovoltaic module according to claim 1 or 2, characterized in that: the second height difference is greater than or equal to 0.9 m.

4. The device for detecting the perovskite photovoltaic module according to claim 1, wherein Further comprising: a photoluminescence line-scan laser arranged in the detection darkroom, the photoluminescence line-scan laser is matched with the photoluminescence image acquisition unit, and the photoluminescence line-scan laser is used at least to provide excitation light to the perovskite photovoltaic component to be detected.

5. The device for detecting a perovskite photovoltaic module according to claim 4, characterized in that: the photoluminescence line-scan laser is arranged on a fourth spatial plane of the three-dimensional coordinate system, on the z-axis, the fourth spatial plane is located below the second spatial plane, and the fourth spatial plane and the second spatial plane have a fourth height difference, and the fourth height difference is greater than or equal to 0.3 m.

6. The device for detecting the perovskite photovoltaic module according to claim 4, wherein: the wavelength of the excitation light provided by the photoluminescence line-scan laser is 360 nm to 450 nm.

7. The device for detecting the perovskite photovoltaic module according to claim 1, wherein Further comprising: a direct-current electronic load used at least to provide excitation voltage or current to the perovskite photovoltaic component to be detected.

8. The device for detecting a perovskite photovoltaic module according to claim 7, characterized in that: the voltage provided by the direct-current electronic load is 0 to 600 V, and the current is 0 to 5 A.

9. The device for detecting the perovskite photovoltaic module according to claim 1, wherein: the resolution of the electroluminescence image acquisition unit is greater than or equal to 4K, and the pixel is greater than or equal to 24 million, the filter of the electroluminescence image acquisition unit can filter out light greater than 850 nm, the resolution of the photoluminescence image acquisition unit is greater than or equal to 4K, and the pixel is greater than or equal to 8 million, and the photoluminescence image acquisition unit has a band-pass filter of 500 nm to 900 nm.

10. The device for detecting the perovskite photovoltaic module according to claim 4, wherein Further comprising: The first moving assembly and / or the second moving assembly are arranged in the detection darkroom, and the first moving assembly and the second moving assembly are connected with the control unit. The first moving assembly is used at least for carrying the perovskite photovoltaic assembly to be detected and driving the perovskite photovoltaic assembly to be detected to move up and down along the z-axis of the three-dimensional coordinate system and to move in the xy plane of the three-dimensional coordinate system. The photoluminescence image acquisition unit is arranged on the second moving assembly, and the second moving assembly is used at least for driving the photoluminescence image acquisition unit and the photoluminescence line-scan laser to move relative to the perovskite photovoltaic assembly to be detected in the xy plane of the three-dimensional coordinate system.

11. The device for detecting a perovskite photovoltaic module according to claim 10, characterized in that: The photoluminescence image acquisition unit and the photoluminescence line-scan laser move synchronously under the driving of the second moving assembly.

12. The device for detecting a perovskite photovoltaic module according to claim 11, characterized in that: The surfaces of the first moving assembly and the second moving assembly are black coating.

13. The device for detecting a perovskite photovoltaic module according to claim 10, wherein Further comprising: The sample carrier and the sample tray are arranged in the detection darkroom, and the sample tray is arranged on the sample carrier. The sample tray is used for carrying the perovskite photovoltaic assembly to be detected. The sample carrier is in transmission cooperation with the first moving assembly and can move up and down along the z-axis of the three-dimensional coordinate system and move in the xy plane of the three-dimensional coordinate system under the driving of the first moving assembly.

14. The device for detecting a perovskite photovoltaic module according to claim 13, characterized in that: The surfaces of the sample carrier and the sample tray are black coating.

15. The device for detecting a perovskite photovoltaic module according to claim 13, wherein: The sample tray is an insulating member.

16. The device for detecting a perovskite photovoltaic module according to claim 13, wherein Further comprising: The limit sensor is arranged in the detection darkroom and is used at least for monitoring the spatial position of the sample carrier. The limit sensor is connected with the control unit.

17. The device for detecting the perovskite photovoltaic module according to claim 1, wherein Further comprising: The detection darkroom is arranged in the test box, and the test box has an openable and closable box door.

18. The device for detecting a perovskite photovoltaic assembly according to claim 17, characterized in that The box door is an electrically controlled lifting door.

19. The device for detecting a perovskite photovoltaic assembly according to claim 17, characterized in that The test box is further provided with a three-color indicator lamp and a code scanner on the outside, and the three-color indicator lamp and the code scanner are connected with the control unit.

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