A photovoltaic thin film visual inspection device

Abstract

The present invention discloses a photovoltaic film visual inspection device, including a visual imaging part, including a support, a horizontally distributed U-shaped frame is arranged on the top of the support, a guide rod coincident with the axis of axial symmetry is arranged at the non-open end of the U-shaped frame, an inner support wheel located in the U-shaped frame is slidably arranged at one end of the guide rod, and a tensioning wheel located outside the U-shaped frame is connected to the other end of the guide rod. In the present invention, by arranging a transmission belt, an inner support wheel, a control combination one, a tensioning wheel, a perspective isolation cover and a wind power decontamination box, it is convenient to take the visual imaging part that is undergoing visual inspection online away from the inspection area, and then he controls the perspective isolation cover on the visual imaging part to enter the wind power decontamination box through the control combination one, and the wind power decontamination box facilitates the rapid and efficient cleaning of the perspective isolation cover. This arrangement is not only convenient for cleaning the perspective isolation cover, but also has a higher cleaning efficiency, which greatly improves the efficiency of photovoltaic film visual inspection.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic thin film detection, and in particular to a photovoltaic thin film visual detection device. Background Art

[0002] During the film production process, defects such as holes, mosquitoes, black spots, spots, and lines will appear on the film surface, affecting the quality of the film. In order to ensure the quality of photovoltaic films, a visual imaging unit is set up on the production line. The function of the visual imaging unit is to continuously capture and detect both sides of the moving photovoltaic film. When the above-mentioned defects are found, the alarm system will be triggered, and then the operator will be notified to make on-site judgments and subsequent processing.

[0003] At present, the visual imaging unit is usually fixedly installed on the upper and lower sides of the photovoltaic film, and is arranged in an array so as to accurately and clearly detect defects on the photovoltaic film. However, the following problems are prone to occur during the visual inspection process: dust, adhesions and other contaminants are easily attached to the inspection lens on the visual imaging unit, and such contaminants will directly affect the accuracy of the inspection lens. In other words, the contaminants will cause the inspection lens to determine that there are defects in the photovoltaic film. The inspection lens is located near the photovoltaic film, so it is very inconvenient to manually clean the inspection lens.

[0004] To this end, the present invention proposes a photovoltaic thin film visual inspection device. Summary of the invention

[0005] The purpose of the present invention is to propose a photovoltaic thin film visual inspection device in order to solve the problems mentioned in the background technology.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A photovoltaic thin film visual inspection device comprises a visual imaging part and a support, wherein a horizontally distributed U-shaped frame is arranged on the top of the support, a guide rod coinciding with the axis of axial symmetry is arranged on the non-open end of the U-shaped frame, an inner supporting wheel located in the U-shaped frame is slidably arranged on one end of the guide rod, a tensioning wheel located outside the U-shaped frame is connected to the other end of the guide rod, a reversing wheel is arranged on both free ends of the open end of the U-shaped frame, a transmission belt is wound and connected between the reversing wheel, the tensioning wheel and the inner supporting wheel, a row of visual imaging parts are arranged on the opposite sides of the belt body located in the U-shaped frame of the transmission belt, a perspective isolation cover is arranged on the lens side of the visual imaging part, a control combination for controlling the movement of the inner supporting wheel is arranged on the guide rod, a wind power decontamination box is arranged on one side of the tensioning wheel, and a transmission motor for controlling the operation of the transmission belt is arranged on one side of the tensioning wheel.

[0008] As a further description of the above technical solution:

[0009] The inner support wheel includes a guide plate and a wheel disc 1 located at one end of the guide plate, the guide rod is a tubular structure, the other end of the guide plate is sleeved in the guide rod, the tensioning wheel includes a positioning frame, a tensioning spring and a wheel disc 2 arranged at one end of the positioning frame, the other end of the positioning frame is fixedly connected with a guide sleeve sleeved on the outside of the guide rod, the tensioning spring is sleeved on the outside of the guide rod and one end of the tensioning spring is against the guide sleeve.

[0010] As a further description of the above technical solution:

[0011] The control combination 1 includes a control motor and a transmission screw. The control motor is fixedly arranged on one end of the guide rod located outside the U-shaped frame, and its output shaft is fixedly connected to the transmission screw located on the guide rod and screwed together with the guide plate. The transmission motor is fixedly arranged on one side of the positioning frame and its output shaft is fixedly connected to the second wheel disc.

[0012] As a further description of the above technical solution:

[0013] Both sides of the guide rod are fixedly connected with connecting pieces connected to the support through support rods, and the wind-powered dirt removal box is fixedly connected with the connecting pieces through door-shaped rods. An inlet and outlet window opposite to the second wheel is opened on one side of the wind-powered dirt removal box, and the clearance between the perspective isolation cover and the inlet and outlet window is matched and its external fixed sleeve is provided with a sealing gasket. The outer wall of the wind-powered dirt removal box is fixedly connected with an air inlet pipe and an air outlet pipe.

[0014] As a further description of the above technical solution:

[0015] The wind power dirt removal box is a cylindrical structure and its axis coincides with the guide rod and is perpendicular to the axis of the second wheel. One end of the air inlet pipe passes through the outer wall of the wind power dirt removal box and the axes of the two are perpendicular and do not intersect. There are two air inlet pipes and they are circumferentially evenly spaced relative to the wind power dirt removal box. One end of the air outlet pipe is fixedly connected to the end of the wind power dirt removal box that is away from the inlet and outlet window.

[0016] As a further description of the above technical solution:

[0017] An eccentrically distributed transmission shaft is rotatably connected in the wind-powered dirt removal box, one end of which is fixedly connected to a brush plate, one end of which is fixedly connected to a cleaning motor located on one side of the air outlet pipe, and the output shaft of the cleaning motor is fixedly connected to the other end of the transmission shaft.

[0018] As a further description of the above technical solution:

[0019] The connecting piece is a circular ring structure, and the support is a groove-type structure with an opening facing upward. The top of the support is fixedly connected to a support platform rotatably connected to the connecting piece, and one side of the support is fixedly connected to a control assembly 2 for controlling the rotation of the connecting piece. Both sides of the support are slidably connected to a door-type cleaning frame up and down, and the top of the door-type cleaning frame is provided with a cleaning roller located above the support.

[0020] As a further description of the above technical solution:

[0021] A connecting base is welded at the bottom of the support, a driving motor is fixedly connected to the top of the connecting base, a transmission screw is fixedly connected to the output shaft of the driving motor, and the transmission screw is screwed and connected to the vertical rod on the door-type cleaning frame.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0023] 1. In the present invention, by arranging a conveyor belt, an inner support wheel, a control combination 1, a tensioning wheel, a perspective isolation cover and a wind-driven dirt removal box, it is convenient to take the visual imaging part that is undergoing visual inspection online away from the inspection area, and then he controls the perspective isolation cover on the visual imaging part to enter the wind-driven dirt removal box through the control combination 1, and the wind-driven dirt removal box facilitates fast and efficient cleaning of the perspective isolation cover. This arrangement not only facilitates the cleaning of the perspective isolation cover, but also has a higher cleaning efficiency, thereby greatly improving the efficiency of visual inspection of photovoltaic films.

[0024] 2. In the present invention, by arranging a rotating shaft and a brush plate in the wind-powered dirt removal box, it is convenient to physically perform high-speed rotary cleaning on one side of the perspective isolation cover entering the wind-powered dirt removal box, which has the advantage of reliably cleaning the adhesions on the perspective isolation cover.

[0025] 3. In the present invention, by arranging the connecting parts, the supporting platform, the door-type cleaning frame, the control assembly 2 and the cleaning roller, it is convenient to control the U-shaped frame to rotate to a vertical state with the opening facing upward. At this time, by controlling the up and down movement of the door-type cleaning frame, the cleaning roller can be controlled to perform rapid preventive cleaning treatment on the two rows of transparent isolation covers on the visual imaging part for visual inspection of photovoltaic films. This rapid cleaning treatment method, combined with the cleaning treatment of the wind-powered dirt removal box, has the cleaning function before and during production, thereby ensuring the efficiency of high-quality production of photovoltaic films. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of a photovoltaic thin film visual inspection device proposed by the present invention;

[0027] Figure 2 A schematic diagram of the structure of a control assembly 1 of a photovoltaic thin film visual inspection device proposed by the present invention;

[0028] Figure 3 for Figure 1 The main view of

[0029] Figure 4 for Figure 2 The enlarged schematic diagram of the part "a" in the middle;

[0030] Figure 5 A schematic diagram of the structure of a door-type cleaning frame and a U-type cleaning frame of a photovoltaic thin film visual inspection device proposed by the present invention when they are cleaning in coordination;

[0031] Figure 6 This is a schematic structural diagram of a door-type cleaning frame pair of photovoltaic thin film visual inspection equipment proposed by the present invention.

[0032] Legend:

[0033] 1. Support; 11. Support platform; 12. Connecting base; 2. U-shaped frame; 3. Guide rod; 31. Connecting piece; 4. Inner support wheel; 41. Guide plate; 42. Wheel one; 5. Tensioning wheel; 51. Positioning frame; 511. Guide sleeve; 52. Tensioning spring; 53. Wheel two; 6. Reversing wheel; 7. Conveyor belt; 8. Transparent isolation cover; 81. Sealing pad; 9. Control combination one; 91. Control motor; 92. Transmission wire Lever; 101, wind-powered dirt removal box; 1011, inlet and outlet window; 1012, air inlet duct; 1013, air outlet duct; 102, door-type lever; 103, transmission shaft; 1031, brush plate; 104, cleaning motor; 105, door-type cleaning frame; 1051, cleaning roller; 1052, vertical rod; 106, driving motor; 107, transmission screw; 108, visual imaging unit; 109, control combination 2; 120, transmission motor. DETAILED DESCRIPTION

[0034] 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.

[0035] Example 1

[0036] See also Figure 1-4 A photovoltaic film visual inspection device includes a visual imaging unit 108. The function of the visual imaging unit 108 is to obtain real-time images of both sides of the photovoltaic film. Its core component is a detection camera. When stains are found on the surface of the photovoltaic film, it will send out an alarm signal. The operator can adjust the production plan in time according to the alarm to ensure the quality of the photovoltaic film.

[0037] In order to avoid the problem of false alarm triggering due to the presence of dirt on the detection camera on the visual imaging unit 108, the present technical solution improves the prior art: the present device includes a support 1, a horizontally distributed U-shaped frame 2 is arranged on the top of the support 1, when in use, the photovoltaic film passes through the inner cavity of the U-shaped frame 2, the non-open end of the U-shaped frame 2 is provided with a guide rod 3 coinciding with the axis of symmetry, the guide rod 3 is located in the middle of the U-shaped frame 2, one end of the guide rod 3 is slidably provided with an inner support wheel 4 located in the U-shaped frame 2, the other end of the guide rod 3 is connected to a tensioning wheel 5 located outside the U-shaped frame 2, and the two free ends of the open end of the U-shaped frame 2 are provided with a reversing wheel 6, between the reversing wheel 6, the tensioning wheel 5 and the inner support wheel 4 A conveyor belt 7 is connected by a wrapping connection. At this time, the conveyor belt 7 is in a tensioned state. A row of visual imaging parts 108 are provided on the opposite sides of the belt body of the conveyor belt 7 located in the U-shaped frame 2, that is, a row of visual imaging parts 108 are respectively provided on the upper and lower sides of the photovoltaic film. When the photovoltaic film continues to move, the detection camera on the visual imaging part 108 continuously captures and detects the surface of the passing photovoltaic film. A transmission motor 120 for controlling the operation of the conveyor belt 7 is provided on one side of the tensioning wheel 5. When the conveyor belt 7 is running, all the visual imaging parts 108 can be taken away from the detection area, and then they will pass through the tensioning wheel 5 away from the detection area in turn, so as to facilitate the cleaning of the detection camera on the visual imaging part 108.

[0038] The inner support wheel 4 includes a guide plate 41 and a wheel disc 42 located at one end of the guide plate 41. The guide rod 3 is a tubular structure. A groove frame is welded at one end of the guide plate 41. The opposite sides of the groove frame are rotatably connected to a wheel disc 42. The space between the two wheel discs 42 is a space for the visual imaging unit 108. The other end of the guide plate 41 is sleeved in the guide rod 3 and the two are slidably matched. The tensioning wheel 5 includes a positioning frame 51, a tensioning spring 52 and a wheel disc 53 arranged at one end of the positioning frame 51. The other end of the positioning frame 51 is fixedly connected to a guide sleeve 511 sleeved on the outside of the guide rod 3. The tensioning spring 52 is sleeved on the outside of the guide rod 3 and one end thereof is against the guide sleeve 511. The tensioning spring 52 applies a tensioning elastic thrust to the positioning frame 51, so that the entire conveyor belt 7 is in a continuously tensioned state.

[0039] Furthermore, a perspective isolation cover 8 is provided on the lens side of the visual imaging unit 108. The function of the perspective isolation cover 8 is to isolate the lens on the detection camera from the outside air to prevent dirt from directly contaminating the lens. Therefore, when there is dirt in the air, the dirt will adhere to the perspective isolation cover 8. Therefore, when dirt adheres to the perspective isolation cover 8, it is only necessary to wipe the perspective isolation cover 8 manually with a cleaning cloth.

[0040] Among them, a control assembly 1 9 for controlling the movement of the inner support wheel 4 is provided on the guide rod 3. In the specific implementation, it is preferred that the control assembly 1 9 includes a control motor 91 and a transmission screw 92. The control motor 91 is fixedly arranged on one end of the guide rod 3 located outside the U-shaped frame 2, and its output shaft is fixedly connected with the transmission screw 92 located on the guide rod 3 and screwed with the guide plate 41. That is to say, the other end of the guide plate 41 is provided with a threaded hole screwed with the transmission screw 92, so that when the transmission screw 92 rotates, the movement of the inner support wheel 4 can be controlled. When the inner support wheel 4 moves, the tensioning wheel 5 uses its tensioning force to ensure that the transmission belt 7 is in a tensioned state, and the tensioning wheel 5 will also move passively. The transmission motor 120 is fixedly arranged on one side of the positioning frame 51 and its output shaft is fixedly connected with the wheel disc 2 53. The transmission motor 120 provides a driving force for the rotation of the wheel disc 2 53. The transmission belt 7 is a synchronous belt, which provides a driving force for the movement of the transmission belt 7 when the wheel disc 2 53 rotates.

[0041] A wind-powered dirt removal box 101 is provided on one side of the tensioning wheel 5. When the wheel disc 53 rotates, it is convenient to drive the visual imaging part 108 to one side of the wind-powered dirt removal box 101. When the positioning frame 51 moves, it is convenient to drive the perspective isolation cover 8 into the wind-powered dirt removal box 101. The wind-powered dirt removal box 101 is conducive to the high-speed airflow flowing therein to blow away the attachments on the perspective isolation cover 8, thereby greatly improving the cleanliness of the perspective isolation cover 8.

[0042] Specifically, both sides of the guide rod 3 are fixedly connected to the connector 31 connected to the support 1 through a support rod, and the wind-powered dirt removal box 101 is fixedly connected to the connector 31 through a door-shaped rod 102. An inlet and outlet window 1011 relative to the wheel disc 2 53 is opened on one side of the wind-powered dirt removal box 101. The perspective isolation cover 8 and the inlet and outlet window 1011 are gap-matched and its external fixed sleeve is provided with a sealing pad 81. The function of the sealing pad 81 here is to seal the gap between the perspective isolation cover 8 and the inlet and outlet window 1011, that is, the perspective isolation cover 8 is inserted into the inlet and outlet window 1011. Afterwards, the sealing pad 81 is in a state of squeezing the wind power dirt removal box 101, and the outer wall of the wind power dirt removal box 101 is fixedly connected with an air inlet pipe 1012 and an air outlet pipe 1013, the air inlet pipe 1012 is connected to the high-pressure air pipe in the workshop through a pipeline, and the air outlet pipe 1013 is connected to the exhaust pipe through a pipeline. After the air inlet pipe 1012 is inhaled, the high-pressure gas will impact the perspective isolation cover 8, and the dirt on the surface of the perspective isolation cover 8 will be blown away, and the blown away dirt will be discharged through the exhaust pipe. This cleaning method greatly improves the cleanliness and cleaning efficiency of the perspective isolation cover 8 surface, and no manual participation is required. In this way, the perspective isolation cover 8 on other visual imaging parts 108 can be cleaned.

[0043] Furthermore, the wind power dirt removal box 101 is a cylindrical structure and its axis coincides with the guide rod 3 and is perpendicular to the axis of the wheel disc 2 53. One end of the air inlet pipe 1012 passes through the outer wall of the wind power dirt removal box 101 and the axes of the two are perpendicular and do not intersect. There are two air inlet pipes 1012 and they are circumferentially evenly distributed relative to the wind power dirt removal box 101. At this time, an impact cyclone will be formed in the wind power dirt removal box 101. The impact cyclone can increase the coverage of the cleaning of the perspective isolation cover 8, so that the surface of the perspective isolation cover 8 is cleaned more evenly. One end of the air outlet pipe 1013 is fixedly connected to the end of the wind power dirt removal box 101 that is away from the inlet and outlet window 1011.

[0044] Example 2

[0045] See also Figure 4 , and the difference from Example 1 is that the wind power decontamination box 101 is rotatably connected with an eccentrically distributed transmission shaft 103, one end of the transmission shaft 103 is fixedly connected with a brush plate 1031, one side of the brush plate 1031 is bonded with a cleaning cloth, and the brush plate 1031 can perform contact cleaning on the perspective isolation cover 8 when rotating, so as to facilitate the removal of the adhesion on the perspective isolation cover 8, wherein the cleaning cloth can be deerskin or sheepskin, and this arrangement is convenient for improving the cleanliness, and one end of the wind power decontamination box 101 is fixedly connected with a cleaning motor 104 located on one side of the air outlet pipe 1013, and the output shaft of the cleaning motor 104 is fixedly connected to the other end of the transmission shaft 103, and the cleaning motor 104 provides driving force for the rotation of the transmission shaft 103. It should be noted that when the adhesion on the perspective isolation cover 8 is too difficult to be cleaned, the cleaning liquid can be sprayed on the brush plate 1031 through the access window 1011, and then the inner cavity of the perspective isolation cover 8 and the wind power decontamination box 101 can be dried by the circulating airflow.

[0046] Example 3

[0047] See also Figure 5 and Figure 6, the difference from implementation 1 and embodiment 2 is that the connecting piece 31 is a circular ring structure, the support 1 is a groove structure with an opening facing upward, the top of the support 1 is fixedly connected with a support platform 11 rotatably connected to the connecting piece 31, and one side of the support 1 is fixedly connected with a control assembly 2 109 for controlling the rotation of the connecting piece 31, wherein the control assembly 2 109 adopts a common transmission structure of a driving gear, a passive gear ring and an adjusting motor, wherein the passive gear ring is fixedly sleeved on one of the connecting pieces 31, the purpose is to control the U-shaped frame 2 to rotate to a vertical state with the opening facing upward, and the two sides of the support 1 are slidably connected up and down with a door-type cleaning frame 105, and the top of the door-type cleaning frame 105 is provided with a cleaning roller 1051 located above the support 1, and a cleaning cloth is sleeved on the cleaning roller 1051, and the door-type cleaning frame 105 can quickly wipe the perspective isolation cover 8 on the two rows of visual imaging parts 108 in the U-shaped frame 2 when it moves up and down. This arrangement is convenient for quickly preventing the detection cameras on all visual imaging parts 108 from being cleaned before production. It should be noted that the cleaning roller 1051 here is fixedly installed.

[0048] Furthermore, a connecting base 12 is welded to the bottom of the support 1, and a driving motor 106 is fixedly connected to the top of the connecting base 12. A transmission screw 107 is fixedly connected to the output shaft of the driving motor 106. The transmission screw 107 is screwed together with a vertical rod 1052 on the door-type cleaning frame 105, and the transmission screw 107 provides driving force for the lifting movement of the door-type cleaning frame 105.

[0049] Working principle: 1. Cleaning before production: Start the drive motor 106, the transmission screw 107 rotates to drive the door-type cleaning frame 105 to rise, and then drive the connecting piece 31 to rotate through the control combination 2 109, and then drive the U-shaped frame 2 to turn up to the state with the opening facing upward, and then control the door-type cleaning frame 105 to descend. At this time, the cleaning roller 1051 descends and passes through the front side of the perspective isolation cover 8 on each visual imaging part 108 in turn, so that all the perspective isolation covers 8 can be quickly cleaned, and then the U-shaped frame 2 is reset, and the photovoltaic film to be inspected passes through the space between the upper and lower rows of visual imaging parts 108, and then the photovoltaic film is controlled to operate, and the visual imaging part 108 is started to visually inspect the dirt on the photovoltaic film.

[0050] 2. During the inspection process, when the sticky dirt on the perspective isolation cover 8 on the local visual imaging part 108 affects the inspection, the photovoltaic film is controlled to stop running, and then the transmission motor 120 is started, the wheel disc 2 53 rotates, the transmission belt 7 runs and drives the contaminated visual imaging part 108 thereon to move to one side of the wind-powered dirt removal box 101, and then the transmission screw 92 is started to rotate, so that the wheel disc 1 42 moves away from the wheel disc 2 53. At this time, under the push of the tensioning spring 52, the wheel disc 2 53 moves in the direction of the wind-powered dirt removal box 101 until the perspective isolation cover 8 is inserted into the inlet and outlet window 1011, and then the wind-powered dirt removal box 101 is inflated through the air inlet pipe 1012. At this time, the airflow will impact the dirt on the perspective isolation cover 8. After the perspective isolation cover 8 is cleaned, the wheel disc 1 42 is controlled to reset, and then the visual imaging part 108 corresponding to the cleaned perspective isolation cover 8 is reset. Finally, the photovoltaic film is controlled to continue to operate to continue visual inspection.

[0051] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A photovoltaic thin film visual inspection device, comprising a visual imaging unit (108), characterized in that: The invention comprises a support (1), wherein a horizontally distributed U-shaped frame (2) is arranged on the top of the support (1), a guide rod (3) coincident with the axis of axial symmetry is arranged at the non-open end of the U-shaped frame (2), an inner support wheel (4) located inside the U-shaped frame (2) is slidably arranged at one end of the guide rod (3), a tension wheel (5) located outside the U-shaped frame (2) is connected to the other end of the guide rod (3), and a reversing wheel (6) is arranged at both free ends of the open end of the U-shaped frame (2), and the reversing wheel (6), the tension wheel (5) and the inner support wheel (4) are connected to each other. A transmission belt (7) is connected in a winding manner, and a row of visual imaging parts (108) are arranged on opposite sides of the belt body of the transmission belt (7) located in the U-shaped frame (2), and a perspective isolation cover (8) is arranged on the lens side of the visual imaging part (108). A control assembly (9) for controlling the movement of the inner support wheel (4) is arranged on the guide rod (3), a wind-powered dirt removal box (101) is arranged on one side of the tension wheel (5), and a transmission motor (120) for controlling the operation of the transmission belt (7) is arranged on one side of the tension wheel (5).

2. A photovoltaic thin film visual inspection device according to claim 1, characterized in that: The inner support wheel (4) comprises a guide plate (41) and a wheel disc (42) located at one end of the guide plate (41); the guide rod (3) is a tubular structure; the other end of the guide plate (41) is sleeved in the guide rod (3); the tension wheel (5) comprises a positioning frame (51), a tensioning spring (52) and a wheel disc (53) arranged at one end of the positioning frame (51); the other end of the positioning frame (51) is fixedly connected to a guide sleeve (511) sleeved on the outside of the guide rod (3); the tensioning spring (52) is sleeved on the outside of the guide rod (3) and one end of the tensioning spring is abutted against the guide sleeve (511).

3. A photovoltaic thin film visual inspection device according to claim 2, characterized in that: The control assembly (9) comprises a control motor (91) and a transmission screw (92); the control motor (91) is fixedly arranged on one end of the guide rod (3) located outside the U-shaped frame (2), and its output shaft is fixedly connected to the transmission screw (92) located on the guide rod (3) and screwed to the guide plate (41); the transmission motor (120) is fixedly arranged on one side of the positioning frame (51), and its output shaft is fixedly connected to the second wheel disc (53).

4. A photovoltaic thin film visual inspection device according to claim 2, characterized in that: Both sides of the guide rod (3) are fixedly connected to a connecting piece (31) connected to the support (1) via a supporting rod; the wind-powered dirt removal box (101) is fixedly connected to the connecting piece (31) via a door-shaped rod (102); one side of the wind-powered dirt removal box (101) is provided with an inlet and outlet window (1011) opposite to the second wheel disc (53); the transparent isolation cover (8) and the inlet and outlet window (1011) are clearance-matched and a sealing pad (81) is fixedly provided on the outside of the cover; and the outer wall of the wind-powered dirt removal box (101) is fixedly connected to an air inlet pipe (1012) and an air outlet pipe (1013).

5. A photovoltaic thin film visual inspection device according to claim 4, characterized in that: The wind power dirt removal box (101) is a cylindrical structure and its axis coincides with the guide rod (3) and is perpendicular to the axis of the second wheel disc (53); one end of the air inlet pipe (1012) passes through the outer peripheral wall of the wind power dirt removal box (101) and the axes of the two are perpendicular and do not intersect; there are two air inlet pipes (1012) and they are circumferentially evenly spaced relative to the wind power dirt removal box (101); one end of the air outlet pipe (1013) is fixedly connected to an end of the wind power dirt removal box (101) that is away from the inlet and outlet window (1011).

6. A photovoltaic thin film visual inspection device according to claim 5, characterized in that: An eccentrically distributed transmission shaft (103) is rotatably connected inside the wind-powered dirt removal box (101), one end of the transmission shaft (103) is fixedly connected to a brush plate (1031), one end of the wind-powered dirt removal box (101) is fixedly connected to a cleaning motor (104) located on one side of the air outlet pipe (1013), and the output shaft of the cleaning motor (104) is fixedly connected to the other end of the transmission shaft (103).

7. The photovoltaic thin film visual inspection device according to claim 4, characterized in that: The connecting piece (31) is a circular ring structure, the support (1) is a groove-shaped structure with an opening facing upward, the top of the support (1) is fixedly connected to a support platform (11) rotatably connected to the connecting piece (31), one side of the support (1) is fixedly connected to a control assembly 2 (109) for controlling the rotation of the connecting piece (31), and both sides of the support (1) are slidably connected to a door-shaped cleaning frame (105) up and down, and a cleaning roller (1051) located above the support (1) is arranged on the top of the door-shaped cleaning frame (105).

8. The photovoltaic thin film visual inspection device according to claim 7, characterized in that: A connecting base (12) is welded to the bottom of the support (1), a driving motor (106) is fixedly connected to the top of the connecting base (12), a transmission screw (107) is fixedly connected to the output shaft of the driving motor (106), and the transmission screw (107) is screwed and connected to a vertical rod (1052) on the door-type cleaning frame (105).

Images