Hot spot auxiliary detection device for photovoltaic module

Abstract

The invention belongs to the technical field of photovoltaic module detection, and relates to a photovoltaic module hot spot auxiliary detection device which comprises two mounting seats, a lifting frame, a control panel, electric wheels, adjusting screw rods and internal thread bushings, the two mounting seats are distributed left and right, the electric wheels are mounted on the two sides of the mounting seats, and the adjusting screw rods are arranged on the lifting frame. Lifting frames are connected to the two mounting bases in a sliding mode, two adjusting screw rods are connected to one lifting frame in a rotating mode, two internal thread sleeves are connected to the other lifting frame, the adjusting screw rods are in threaded fit with the internal thread sleeves, and a control panel is mounted on one lifting frame. When the photovoltaic panel hot spot detection task is executed, the detection device only needs to be placed on the surface of the photovoltaic panel, the infrared thermal imager can be automatically guided to comprehensively scan the photovoltaic panel through movement of the electric wheels, manual operation is not needed during operation, human input is reduced, and the hot spot detection process is more convenient and efficient.

Description

Technical Field

[0001] The invention belongs to the technical field of photovoltaic component detection and relates to a hot spot auxiliary detection device for photovoltaic components. Background Art

[0002] Hot spots are a major hidden danger in photovoltaic systems. They are mainly caused by the fact that the conversion efficiency of photovoltaic panel units drops sharply due to partial shading, performance differences, pollution, damage, etc., and the abnormal units, which are reverse power consumers, generate additional heat when working hard to match the current of the adjacent high-efficiency units, forming hot spots. Hot spots not only drag down the overall system performance and significantly reduce the output power, but also pose a potential risk. In the long run, they may cause permanent damage to the battery, and in severe cases, induce fires, endangering the safety of the photovoltaic system. In order to avoid the damage caused by hot spots, it is necessary to regularly detect hot spots on photovoltaic panels.

[0003] At present, the hot spot detection of photovoltaic panels mainly adopts infrared thermal imaging technology, which identifies potential hot spot areas by capturing temperature anomalies on the surface of photovoltaic panels. However, the current manual inspection process, that is, the inspector uses a handheld infrared thermal imager to scan each photovoltaic panel one by one, has obvious limitations. This process not only tests the operator's patience and concentration, but also requires the operator to hold the equipment steadily for a long time to ensure image quality, which consumes a lot of manpower; moreover, after the initial inspection, it is necessary to manually compare the image and mark the hot spot position one by one. This series of step-by-step operations significantly prolongs the total inspection cycle and reduces work efficiency. Summary of the invention

[0004] In view of this, the present invention provides a hot spot auxiliary detection device for photovoltaic modules.

[0005] The technical solution of the present invention is: a hot spot auxiliary detection device for photovoltaic components, including a mounting seat, a lifting frame, a control panel, an electric wheel, an adjustment screw, an internal thread sleeve, a mounting frame, an infrared thermal imager, an adjustment mechanism and a marking mechanism, wherein two mounting seats are provided and are distributed on the left and right, electric wheels are installed on both sides of the mounting seat, lifting frames are slidably connected to the two mounting seats, one of the lifting frames is rotatably connected to two adjustment screws, and the other lifting frame is connected to two internal thread sleeves, the adjustment screws are threadedly matched with the internal thread sleeves, a control panel is installed on one of the lifting frames, a mounting frame is installed between the two internal thread sleeves, and the bottom of the mounting frame is installed An infrared thermal imager is provided, and an adjusting mechanism is provided on the lifting frame, and the adjusting mechanism is used to drive the adjusting screw to rotate so as to adjust the distance between the two lifting frames. A marking mechanism is provided on the mounting seat, and the marking mechanism includes a driving motor, a pulley, a connecting belt, a connecting frame, an electric push rod and a marking pen. The two mounting seats are both equipped with a driving motor, a pulley is connected to the output shaft of the driving motor, a connecting belt is wound between the two pulleys, a connecting frame is connected in the middle of the connecting belt, an electric push rod is installed on the connecting frame, a marking pen is installed at the bottom of the electric push rod, and the infrared thermal imager, the electric push rod and the driving motor are all electrically connected to the control panel.

[0006] Optionally, the adjustment mechanism includes a driving gear and a transmission gear. The lifting frame is rotatably connected to the driving gear, and the two adjusting screws are both connected to the transmission gear. The two sides of the driving gear are respectively meshed with the two transmission gears.

[0007] Optionally, the adjustment mechanism further includes a dial wheel, and the driving gear is connected to a dial wheel for facilitating the operation of rotating the driving gear.

[0008] Optionally, it also includes a hydraulic lifting mechanism, which includes a cylinder body, a piston tube, a connecting pipe, a piston block 1, a sleeve, an injection pipe, a connecting pipe and a piston block 2. The two mounting seats are connected to the cylinder body on both sides. The piston tube is slidably connected in the right cylinder body, the top of the piston tube is connected to the bottom of the lifting frame, the top of the piston tube is connected to a connecting pipe, the bottom of the piston tube is connected to the inside of the cylinder body, the sleeve is connected to the inside of the internal threaded sleeve, the piston block 1 is slidably connected in the sleeve, the connecting pipe passes through the lifting frame, extends into the adjusting screw and is connected to the piston block 1, the connecting pipe is evenly spaced near the piston block 1 and has liquid inlet holes, the piston block 2 is slidably connected in the left cylinder body, the piston block 2 is connected to an injection pipe, the top of the injection pipe is connected to the lifting frame, the position where the lower part of the injection pipe extends into the cylinder body is also evenly spaced and has liquid inlet holes, the top of the injection pipe is connected to a connecting pipe, and the connecting pipe passes through the lifting frame and is connected to the inside of the sleeve.

[0009] Optionally, the position below the piston tube in the right cylinder is filled with liquid, and the position above the second piston block in the left cylinder is also filled with liquid. In addition, the piston tube, sleeve and connecting tube are also filled with liquid.

[0010] Optionally, a wiping mechanism is also included, which includes a connecting frame, a connecting strip and a sponge wiping block. The internal threaded sleeve is connected to the connecting frame, the connecting frame is connected to one of the mounting seats, and the other mounting seat is connected to the connecting strip. The connecting strip and the connecting frame are slidably connected, and the connecting strip and the bottom of the connecting frame are both connected to a sponge wiping block.

[0011] Optionally, a scraping mechanism is also included, which includes a scraper, a guide frame, a turntable, an elastic member, a triangular block and a contact rod. Scrapers are slidably connected to the lower parts of the mounting seats on both sides, and the two scrapers are slidably connected to each other. The connecting frame is connected to the guide frame, and the guide frame is slidably connected to the scraper. The electric wheel is connected to a turntable, and triangular blocks are evenly spaced along the circumferential direction on the turntable. An elastic member is connected between the scraper and the mounting seat, and a contact rod is connected to the scraper, and the contact rod is located at the moving track of the triangular block.

[0012] Optionally, an auxiliary moving mechanism is also included, which includes a sliding frame, an elastic member 2 and a support wheel. The sliding frame is slidably connected to the bottom of the mounting seat, three elastic members 2 are evenly spaced and connected between the sliding frame and the mounting seat, and the front and rear sides of the sliding frame are rotatably connected to the support wheels.

[0013] The beneficial effects are: 1. When the present invention performs the task of hot spot detection of photovoltaic panels, it only needs to place the detection device on the surface of the photovoltaic panel, and the electric wheel can be moved to automatically guide the infrared thermal imager to perform a comprehensive scan of the photovoltaic panel. No manual operation is required during operation, which reduces manpower input and makes the hot spot detection process more convenient and efficient.

[0014] 2. After the infrared thermal imager detects the hot spot on the photovoltaic panel, the present invention can send a signal to the control panel, thereby controlling the operation of the drive motor to move the marker pen to the position where the hot spot exists, and then controlling the extension of the telescopic rod of the electric push rod to drive the marker pen to move down for marking, thereby achieving automatic marking after the detection is completed, without the need for manual operation for subsequent marking processing, simplifying the operation process, and improving the overall efficiency.

[0015] 3. The present invention can adjust the distance between the two mounting bases according to the width of the photovoltaic panel. In this process, the height of the infrared thermal imager can be automatically adjusted by setting the hydraulic lifting mechanism to ensure that the detection field of view perfectly matches the width of the photovoltaic panel. That is, when facing a photovoltaic panel with a larger width, the system will automatically raise the infrared thermal imager to expand the detection coverage; on the contrary, when encountering a narrow photovoltaic panel, the height of the infrared thermal imager will be lowered accordingly to accurately focus on the detection area. The automated height adjustment mechanism replaces the need for manual adjustment, further simplifies the operation process, and improves the efficiency of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a structural schematic diagram of another perspective of the present invention; Figure 3 It is a structural schematic diagram of the adjusting mechanism and the hydraulic lifting mechanism of the present invention; Figure 4 is a cross-sectional view of the hydraulic lifting mechanism of the present invention; Figure 5 For the present invention Figure 4 A magnified view of part A in FIG. Figure 6 For the present invention Figure 4 A magnified view of part B in FIG. Figure 7 For the present invention Figure 4 A magnified view of part C in FIG. Figure 8 It is a schematic diagram of the first structure of the marking mechanism of the present invention; Fig. 9 It is a schematic diagram of the second structure of the marking mechanism of the present invention; Fig.10 It is a structural schematic diagram of the wiping mechanism of the present invention; Fig.11 It is a schematic diagram of the first structure of the scraping mechanism of the present invention; Fig.12 It is a schematic diagram of the second structure of the scraping mechanism of the present invention; Fig.13 It is a structural schematic diagram of the auxiliary movement mechanism of the present invention.

[0017] Among them: 1-mounting seat, 2-lifting frame, 21-control panel, 3-electric wheel, 4-adjusting screw, 5-internal thread sleeve, 51-mounting frame, 52-infrared thermal imager, 61-driving gear, 62-transmission gear, 63-push wheel, 71-cylinder body, 72-piston tube, 73-connecting tube, 74-piston block 1, 75-sleeve, 76-injection tube, 77-connecting tube, 78-piston block 2, 81-driving Motor, 82-pulley, 83-connecting belt, 84-connecting frame, 85-electric push rod, 86-marker pen, 91-connecting frame, 92-connecting strip, 93-sponge wiping block, 100-photovoltaic panel, 101-scraper, 102-guide frame, 103-turntable, 104-elastic part 1, 105-triangular block, 106-contact rod, 111-sliding frame, 112-elastic part 2, 113-support wheel. DETAILED DESCRIPTION

[0018] First of all, it should be pointed out that in the different described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosure contained in the entire description can be transferred to the same parts with the same reference numerals or the same component names. Selected positional descriptions in the description, such as top, bottom, lateral, etc., also refer to the directly described and shown figures and are transferred to the new positions in the case of a change in position.

[0019] A device for assisting detection of hot spots in photovoltaic modules, such as Figure 1-Figure 9 As shown, it includes a mounting seat 1, a lifting frame 2, a control panel 21, an electric wheel 3, an adjusting screw 4, an internal threaded sleeve 5, a mounting frame 51, an infrared thermal imager 52, an adjusting mechanism and a marking mechanism. The mounting seat 1 is provided with two, and the two mounting seats 1 are respectively arranged on the left and the right. The electric wheels 3 are installed on the front and rear sides of the mounting seat 1. The two mounting seats 1 are slidably connected with the lifting frames 2, and the lifting frames 2 can slide up and down along the mounting seat 1. The left side of the lifting frame 2 on the right side is rotatably connected with two adjusting screws 4, and the right side of the lifting frame 2 on the left side is connected with two internal threaded sleeves 5, and the adjusting screw 4 is threadedly matched with the internal threaded sleeves 5. A control panel 21 is installed on the front side of the lifting frame 2 on the right side, and a mounting frame 51 is installed between the right sides of the two internal threaded sleeves 5. An infrared thermal imager 52 is installed at the bottom of the mounting frame 51. An adjusting mechanism is provided on the lifting frame 2, and the adjusting mechanism is used to drive the adjusting screw 4 to rotate to adjust the distance between the two lifting frames 2. A marking mechanism is provided on the mounting seat 1.

[0020] like Figure 3As shown, the adjustment mechanism includes a driving gear 61, a transmission gear 62 and a dial wheel 63. The driving gear 61 is rotatably connected in the middle of the right lifting frame 2. The right sides of the two adjusting screws 4 are connected to the transmission gears 62. The front and rear sides of the driving gear 61 are respectively meshed with the two transmission gears 62, so that the driving gear 61 can drive the transmission gear 62 and the adjusting screw 4 to rotate when it rotates. The driving gear 61 is connected to the dial wheel 63, and the driving gear 61 is driven to rotate by the dial wheel 63, which is more convenient to operate.

[0021] like Figure 4-Figure 7 As shown, it also includes a hydraulic lifting mechanism, which includes a cylinder body 71, a piston tube 72, a connecting pipe 73, a piston block 1 74, a sleeve 75, an injection pipe 76, a connecting pipe 77 and a piston block 2 78. The two mounting seats 1 are connected to the cylinder bodies 71 on both sides, and the piston tube 72 is slidably connected in the right cylinder body 71. The top of the piston tube 72 is connected to the bottom of the lifting frame 2. The top of the piston tube 72 is connected to the connecting pipe 73. The bottom of the piston tube 72 is connected to the inside of the cylinder body 71. The inside of the internal threaded sleeve 5 is connected to the sleeve 75. The piston block 1 74 is slidably connected in the sleeve 75. The connecting pipe 73 passes through the lifting frame 2 and extends into the adjusting screw 4 and is connected to the piston block 1 74. The connecting pipe 73 is provided with liquid inlet holes at even intervals near the piston block 1 74, and a piston block 2 78 is slidably connected in the left cylinder body 71. The piston block 2 78 is connected with an injection pipe 76, and the top of the injection pipe 76 is connected to the lifting frame 2. The position where the lower part of the injection pipe 76 extends into the cylinder body 71 is also provided with liquid inlet holes at even intervals. The top of the injection pipe 76 is connected with a connecting pipe 77, and the connecting pipe 77 passes through the lifting frame 2 and is connected to the inside of the sleeve 75. The position below the piston tube 72 in the right cylinder body 71 is filled with liquid, and the position above the piston block 2 78 in the left cylinder body 71 is also filled with liquid. In addition, the piston tube 72, the sleeve 75 and the connecting pipe 73 are also filled with liquid.

[0022] When it is necessary to detect the hot spots on the photovoltaic panel 100, the present detection device can be used. When in use, the spacing between the two mounting seats 1 is first adjusted according to the size of the photovoltaic panel 100. During the adjustment, the control dial 63 drives the driving gear 61 to rotate. The driving gear 61 drives the transmission gear 62 to rotate when rotating. The transmission gear 62 drives the adjusting screw 4 to rotate when rotating. When the adjusting screw 4 rotates, it can be screwed into the internal threaded sleeve 5 or rotated out from the internal threaded sleeve 5 through the threaded cooperation between it and the internal threaded sleeve 5, thereby driving the two lifting frames 2 and the mounting seats 1 to move closer to or away from each other, so as to adjust the spacing between the two mounting seats 1 so that the spacing between the two mounting seats 1 is The spacing is consistent with the width of the photovoltaic panel 100. During the adjustment process, if the distance between the two mounting seats 1 increases, the piston block 74 moves to the right in the sleeve 75, so that the liquid on the right side of the sleeve 75 enters the connecting tube 73 through the liquid inlet hole on the connecting tube 73, and the liquid in the connecting tube 73 is injected into the right cylinder body 71 through the piston tube 72. As the liquid inside the right cylinder body 71 increases, the piston tube 72 is squeezed to move upward, so that the lifting frame 2 on the right side is lifted. When the piston block 74 moves to the right in the sleeve 75, negative pressure is also generated on the left side of the sleeve 75, so that the liquid in the left cylinder body 71 is drawn out through the liquid inlet holes on the injection tube 76 and the connecting tube 77. As the liquid in the upper part of the left cylinder 71 decreases, the connecting pipe 77 will gradually move upward, thereby pushing the lifting frame 2 on the left to lift. In this way, when the distance between the two mounting seats 1 increases, the lifting frame 2 can be automatically driven to lift, thereby driving the infrared thermal imager 52 to rise, so as to expand the scanning range of the infrared thermal imager 52. Conversely, the infrared thermal imager 52 can be driven to descend to narrow the scanning range of the infrared thermal imager 52, so as to ensure that the infrared thermal imager 52 can fully cover the entire width of the photovoltaic component. After the adjustment is completed, the electric wheels 3 on the two mounting seats 1 can be placed on the left and right sides of the photovoltaic panel 100 respectively, and then the infrared thermal imager can be controlled. The imager 52 scans the photovoltaic panel 100 to detect whether there are hot spots on the photovoltaic panel 100. During scanning, the electric wheel 3 is controlled to rotate to drive the device to move along the photovoltaic panel 100, so as to drive the infrared thermal imager 52 to move, thereby scanning different positions on the photovoltaic panel 100. In this way, the device can be used to detect hot spots on the photovoltaic panel 100. Before detection, the distance between the two mounting bases 1 can be adjusted to accommodate photovoltaic panels 100 of various specifications, and during adjustment, the infrared thermal imager 52 can be automatically driven to rise and fall, so as to adjust the height of the infrared thermal imager 52 according to the size of the photovoltaic panel 100, thereby adjusting the scanning range of the infrared thermal imager 52.

[0023] like Figure 8 and Fig. 9As shown, the marking mechanism includes a driving motor 81, a pulley 82, a connecting belt 83, a connecting frame 84, an electric push rod 85 and a marking pen 86. The driving motor 81 is installed on the two mounting seats 1. The output shaft of the driving motor 81 is connected to the pulley 82. The connecting belt 83 is wound together between the two pulleys 82. The connecting belt 83 is connected to the connecting frame 84 in the middle. The electric push rod 85 is installed on the connecting frame 84. The marking pen 86 is installed at the bottom of the electric push rod 85. The infrared thermal imager 52, the electric push rod 85 and the driving motor 81 are all electrically connected to the control panel 21.

[0024] When the infrared thermal imager 52 detects that a hot spot exists in an area on the photovoltaic panel 100, a signal can be sent to the control panel 21 to control the operation of the two drive motors 81. When the drive motor 81 is in operation, the connection belt 83 is driven to move by the rotation of the pulley 82, so that the connecting frame 84 moves to above the area where the hot spot exists. After the movement is completed, the drive motor 81 stops operating. At this time, the control panel 21 controls the electric push rod 85 to move downward, so that the marker pen 86 moves downward, thereby marking the position with the hot spot on the photovoltaic panel 100, so as to achieve the effect of automatically marking the position where the hot spot exists on the photovoltaic panel 100.

[0025] like Fig.10 As shown, a wiping mechanism is also included, and the wiping mechanism includes a connecting frame 91, a connecting strip 92 and a sponge wiping block 93. The connecting frame 91 is connected to the internal threaded sleeve 5, and the connecting frame 91 is connected to the left mounting seat 1. The connecting strip 92 is connected to the right mounting seat 1. The connecting strip 92 and the connecting frame 91 are slidably connected, and the sponge wiping block 93 is connected to the bottom of the connecting strip 92 and the connecting frame 91.

[0026] After the mounting base 1 is installed on the photovoltaic panel 100, the sponge wiping block 93 contacts with the photovoltaic panel 100. Then, when the mounting base 1 moves, the sponge wiping block 93 can wipe the impurities on the photovoltaic panel 100 to avoid the accumulation of impurities on the photovoltaic panel 100 and affect the detection work of the infrared thermal imager 52. The movement of the internal threaded sleeve 5 can drive the connecting frame 91 to move, thereby expanding or storing the width of the sponge wiping block 93, so that the length of the sponge wiping block 93 is flush with the distance between the two mounting bases 1.

[0027] like Fig.11 and Fig.12As shown, a scraping mechanism is also included, which includes a scraper 101, a guide frame 102, a turntable 103, an elastic member 104, a triangular block 105 and a contact rod 106. The lower parts of the left and right mounting seats 1 are slidably connected with scrapers 101, and the two scrapers 101 are slidably connected to each other. The connecting frame 91 is connected with a guide frame 102, and the guide frame 102 is slidably connected to the scraper 101. The electric wheel 3 is connected with a turntable 103, and triangular blocks 105 are evenly spaced along the circumferential direction on the turntable 103. An elastic member 104 is connected between the scraper 101 and the mounting seat 1, and the elastic member 104 is a connecting spring. The scraper 101 is connected with a contact rod 106, and the contact rod 106 is located at the moving track of the triangular block 105.

[0028] When the electric wheel 3 rotates to drive the device to move, it can also drive the turntable 103 to rotate. The rotation of the turntable 103 can drive the triangular block 105 to rotate. When the triangular block 105 rotates, it can contact the contact rod 106 and squeeze the contact rod 106 to move horizontally. The elastic member 104 is compressed, and the contact rod 106 can drive the scraper 101 to move together when it moves. When the triangular block 105 moves to be separated from the contact rod 106, the scraper 101 is reset under the action of the elastic member 104. This process is repeated, and the scraper 101 can be driven to move back and forth left and right while following the movement of the device, thereby scraping off the stubborn impurities attached to the photovoltaic panel 100 at the moving track of the device to avoid stubborn impurities that are difficult to clean.

[0029] like Fig.13 As shown, an auxiliary moving mechanism is also included, and the auxiliary moving mechanism includes a sliding frame 111, an elastic member 112 and a support wheel 113. The sliding frame 111 is slidably connected to the bottom of the mounting seat 1, and three elastic members 112 are evenly spaced and connected between the sliding frame 111 and the mounting seat 1. The elastic member 112 is a tension spring, and the front and rear sides of the sliding frame 111 are rotatably connected to the support wheel 113.

[0030] Before placing the device, the sliding frame 111 can be pulled down first, the elastic member 112 is stretched, and then the device is placed on the photovoltaic panel 100. When placing the device, the electric wheel 3 is located above the photovoltaic panel 100, and then the support wheel 113 is controlled to be located below the photovoltaic panel 100. After placement, the sliding frame 111 is released, and under the action of the elastic member 112, the sliding frame 111 is reset and drives the support wheel 113 to move up and cooperate with the electric wheel 3 to clamp the photovoltaic panel 100, thereby assisting in fixing the device on the photovoltaic panel 100 to prevent the position of the device from shifting when moving.

[0031] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hot spot auxiliary detection device for photovoltaic modules, characterized by: The invention comprises a mounting seat (1), a lifting frame (2), a control panel (21), an electric wheel (3), an adjusting screw (4), an internal threaded sleeve (5), a mounting frame (51), an infrared thermal imager (52), an adjusting mechanism and a marking mechanism. The mounting seats (1) are provided with two and are distributed on the left and right sides. The electric wheels (3) are installed on both sides of the mounting seat (1). The two mounting seats (1) are slidably connected to the lifting frames (2). One of the lifting frames (2) is rotatably connected to two adjusting screws (4). The other lifting frame (2) is connected to two internal threaded sleeves (5). The adjusting screws (4) are threadedly matched with the internal threaded sleeves (5). A control panel (21) is installed on one of the lifting frames (2). The mounting frame (51) is installed between the two internal threaded sleeves (5). The infrared thermal imager (52) is installed at the bottom of the mounting frame (51). The lifting frame (2) is provided with an adjusting mechanism. The invention relates to a device for adjusting the distance between two lifting frames (2). The mounting seat (1) is provided with a marking mechanism, and the marking mechanism comprises a driving motor (81), a pulley (82), a connecting belt (83), a connecting frame (84), an electric push rod (85) and a marking pen (86). The two mounting seats (1) are both provided with a driving motor (81). The output shaft of the driving motor (81) is connected to a pulley (82). A connecting belt (83) is wound between the two pulleys (82). The connecting belt (83) is connected to a connecting frame (84) in the middle. The connecting frame (84) is provided with an electric push rod (85). The bottom of the electric push rod (85) is provided with a marking pen (86). The infrared thermal imager (52), the electric push rod (85) and the driving motor (81) are all electrically connected to the control panel (21).

2. The device for auxiliary detection of hot spots of photovoltaic modules according to claim 1, characterized in that: The adjustment mechanism comprises a driving gear (61) and a transmission gear (62); the lifting frame (2) is rotatably connected to the driving gear (61); the two adjusting screw rods (4) are both connected to the transmission gear (62); and the two sides of the driving gear (61) are respectively meshed with the two transmission gears (62).

3. The device for auxiliary detection of hot spots of photovoltaic modules according to claim 2, characterized in that: The adjustment mechanism also includes a thumbwheel (63), and the driving gear (61) is connected to the thumbwheel (63) for facilitating the operation of rotating the driving gear (61).

4. The device for auxiliary detection of hot spots of photovoltaic modules according to claim 2, characterized in that: The utility model also comprises a hydraulic lifting mechanism, wherein the hydraulic lifting mechanism comprises a cylinder body (71), a piston tube (72), a connecting tube (73), a piston block 1 (74), a sleeve (75), an injection tube (76), a connecting tube (77) and a piston block 2 (78). The two mounting seats (1) are connected to the cylinder bodies (71) on both sides, the piston tube (72) is slidably connected in the right cylinder body (71), the top of the piston tube (72) is connected to the bottom of the lifting frame (2), the top of the piston tube (72) is connected to the connecting tube (73), the bottom of the piston tube (72) is connected to the inside of the cylinder body (71), the inside of the internal threaded sleeve (5) is connected to the sleeve (75), and the inside of the sleeve (75) is slidably connected to the piston. The connecting pipe (73) passes through the lifting frame (2) and extends into the adjusting screw (4) and is connected to the piston block (74). The connecting pipe (73) is provided with liquid inlet holes at even intervals near the piston block (74). A piston block (78) is slidably connected in the left cylinder body (71). The piston block (78) is connected with a liquid injection pipe (76). The top of the liquid injection pipe (76) is connected to the lifting frame (2). The position where the lower part of the liquid injection pipe (76) extends into the cylinder body (71) is also provided with liquid inlet holes at even intervals. The top of the liquid injection pipe (76) is connected with a connecting pipe (77). The connecting pipe (77) passes through the lifting frame (2) and is connected to the inside of the sleeve (75).

5. The device for auxiliary detection of hot spots of photovoltaic modules according to claim 4, characterized in that: The position below the piston tube (72) in the right cylinder (71) is filled with liquid, and the position above the second piston block (78) in the left cylinder (71) is also filled with liquid. In addition, the piston tube (72), the sleeve (75) and the connecting tube (73) are also filled with liquid.

6. The device for auxiliary detection of hot spots of photovoltaic modules according to claim 1, characterized in that: The invention also comprises a wiping mechanism, the wiping mechanism comprising a connecting frame (91), a connecting strip (92) and a sponge wiping block (93), the connecting frame (91) being connected to the internal threaded sleeve (5), the connecting frame (91) being connected to one of the mounting seats (1), the connecting strip (92) being connected to the other mounting seat (1), the connecting strip (92) and the connecting frame (91) being slidably connected, and the bottoms of the connecting strip (92) and the connecting frame (91) are both connected to the sponge wiping block (93).

7. The device for auxiliary detection of hot spots of photovoltaic modules according to claim 6, characterized in that: The invention also comprises a scraping mechanism, the scraping mechanism comprising a scraper (101), a guide frame (102), a rotating disk (103), an elastic member (104), a triangular block (105) and a contact rod (106); the lower parts of the mounting seats (1) on both sides are slidably connected with scrapers (101); the two scrapers (101) are slidably connected to each other; the connecting frame (91) is connected to the guide frame (102); the guide frame (102) is slidably connected to the scrapers (101); the electric wheel (3) is connected to the rotating disk (103); the triangular blocks (105) are evenly spaced along the circumferential direction on the rotating disk (103); the elastic member (104) is connected between the scraper (101) and the mounting seat (1); the scraper (101) is connected to a contact rod (106); the contact rod (106) is located at the moving track of the triangular block (105).

8. The device for auxiliary detection of hot spots of photovoltaic modules according to claim 1, characterized in that: The auxiliary moving mechanism also comprises a sliding frame (111), a second elastic member (112) and a supporting wheel (113); the bottom of the mounting seat (1) is slidably connected to the sliding frame (111); three second elastic members (112) are evenly spaced and connected between the sliding frame (111) and the mounting seat (1); and the front and rear sides of the sliding frame (111) are rotatably connected to the supporting wheels (113).

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