Auxiliary infrared instrument supporting device for hot spot detection of photovoltaic panel

Abstract

The invention discloses a photovoltaic panel hot spot detection auxiliary infrared instrument supporting device, and relates to the photovoltaic technical field, the photovoltaic panel hot spot detection auxiliary infrared instrument supporting device comprises a supporting cover body and a threaded sleeve, the supporting cover body is detachably provided with a clamping plate mechanism through the threaded sleeve, the supporting cover body is also provided with a limiting main body, and the limiting main body is composed of a standard limiting mechanism and an annular limiting mechanism; the clamping plate mechanism comprises a threaded shaft, one end of the threaded shaft is provided with a vertical plate which is vertically distributed, and one end, far away from the threaded shaft, of the vertical plate is fixedly provided with a photovoltaic panel cushion block which is connected with the photovoltaic panel in an abutting mode. Through combination of bearing connection between the vertical plates and the threaded shafts and the stepped groove design of the photovoltaic panel cushion blocks, the distance between the vertical plates can be flexibly adjusted to adapt to photovoltaic panels of different sizes, stepped surfaces can be switched according to the thickness of the photovoltaic panels, the distance between the device and the photovoltaic panels can be finely adjusted, and compared with traditional handheld operation, the assembling stability of the device and the photovoltaic panels is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic technology, and specifically to a support device for an auxiliary infrared instrument for detecting hot spots on photovoltaic panels. Background Technology

[0002] During long-term outdoor operation, photovoltaic panels are prone to localized overheating due to factors such as shading, component aging, and poor contact.

[0003] Hot spot effects not only significantly reduce the power generation efficiency of photovoltaic modules but can also accelerate module aging and damage, and in severe cases, pose a fire hazard. Therefore, hot spot detection is a critical aspect of photovoltaic system operation and maintenance. Infrared thermography technology has become the mainstream method for hot spot detection because it can quickly capture the surface temperature distribution of photovoltaic panels and accurately identify the location of hot spots. Its core relies on infrared thermometers (hereinafter referred to as "infrared instruments") to collect temperature data.

[0004] In actual testing, the stable support of the infrared meter directly affects the temperature measurement accuracy and testing efficiency. However, current testing methods mostly rely on manual hand-held operation of the infrared meter, which lacks reliable fixing devices. During hand-held operation, displacement can easily occur due to hand tremors, changes in posture, etc., resulting in large fluctuations in the temperature values ​​at the same detection point. This makes it impossible to obtain stable and accurate temperature data, affecting the scientific nature of hot spot judgment. Moreover, most of the few infrared meter support brackets on the market are specially designed and can only be used to fit temperature measuring instruments of a single shape. They can only fix square infrared meters with camera screws or columnar infrared meters, lacking universality for infrared meters of different shapes and sizes. Summary of the Invention

[0005] In view of the problems existing in the prior art, the present invention is proposed.

[0006] Therefore, the purpose of this invention is to provide an auxiliary infrared instrument support device for photovoltaic panel hot spot detection. The problem to be solved is that during the photovoltaic panel hot spot detection process, the infrared instrument lacks a reliable fixing device, which leads to large fluctuations in the temperature measurement value at the same detection point. In addition, a small number of existing support brackets are specially designed and can only be adapted to temperature measuring instruments of a single shape, lacking universality for infrared instruments of different shapes and sizes.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a support device for an auxiliary infrared instrument for detecting hot spots on photovoltaic panels, comprising a support cover and a threaded sleeve, wherein the threaded sleeve is arranged in a ring array around the support cover, and a clamping mechanism for assembling photovoltaic panels is detachably installed on the support cover through the threaded sleeve; the support cover is also provided with a limiting body, which is composed of a standard limiting mechanism for assembling a square infrared instrument and a ring-shaped limiting mechanism for assembling a columnar infrared instrument.

[0008] The clamping mechanism includes a threaded shaft corresponding to a threaded sleeve, and one end of the threaded shaft extends into the threaded sleeve and is threadedly connected to the threaded sleeve. The end of the threaded shaft protruding from the threaded sleeve is provided with a vertically distributed upright plate. A photovoltaic panel pad that abuts against and connects with the photovoltaic panel is fixedly installed at the end of the upright plate away from the threaded shaft, and the upright plate is slidably distributed along the axial direction of the threaded sleeve via the threaded shaft.

[0009] As a preferred embodiment of the photovoltaic panel hot spot detection auxiliary infrared instrument support device of the present invention, wherein: a bearing corresponding to the threaded shaft is fixedly installed at the end of the threaded shaft away from the vertical plate, the vertical plate is rotatably connected to the threaded shaft through the bearing, and a stepped groove is provided on the side of the photovoltaic panel pad away from the vertical plate, and the step span of the stepped groove gradually increases from top to bottom.

[0010] As a preferred embodiment of the photovoltaic panel hot spot detection auxiliary infrared instrument support device of the present invention, the standard limiting mechanism includes camera clips symmetrically distributed on the support cover. The support cover has a guide groove for limiting and sliding the camera clips. The camera clip has a camera screw hole adapted to the camera screw. An adjusting screw is rotatably connected below the guide groove. One end of the adjusting screw extends to the support cover and is threadedly connected to one end of the camera clip located in the guide groove.

[0011] As a preferred embodiment of the photovoltaic panel hot spot detection auxiliary infrared instrument support device of the present invention, wherein: the top of the camera clamp is further provided with inclined grooves, and buffer rubber strips are fixedly installed on the inner side of the camera clamp and on both sides of the camera screw opening.

[0012] As a preferred embodiment of the photovoltaic panel hot spot detection auxiliary infrared instrument support device of the present invention, wherein: the ring-mounted limiting mechanism includes limiting claws distributed in a ring array around the support cover, and the support cover is also provided with a relief groove for avoiding the limiting claws, and each limiting claw is fixedly mounted with a claw rotating shaft, and the limiting claws are respectively rotatably connected to the corresponding relief grooves through the claw rotating shafts;

[0013] The support cover is also movably connected to a gripper disk that is concentrically distributed with the support cover. Each of the limiting grippers has a snap-fit ​​end extending into the gripper disk. The gripper disk is slidably arranged along the axial direction of the support cover.

[0014] As a preferred embodiment of the photovoltaic panel hot spot detection auxiliary infrared instrument support device of the present invention, wherein: one end of the gripper disk protruding from the support cover is provided with a camera avoidance groove for avoiding the infrared instrument, and the gripper disk is also provided with a snap-fit ​​ring groove adapted to the snap-fit ​​end, and the limiting gripper is snap-fitted and connected to the snap-fit ​​ring groove through the snap-fit ​​end.

[0015] As a preferred embodiment of the photovoltaic panel hot spot detection auxiliary infrared instrument support device of the present invention, wherein: a column is fixedly installed at one end of the gripper disk located in the support cover, and a return spring is provided in the support cover and outside the column, and the two ends of the return spring are respectively connected to the gripper disk and the inner wall of the support cover.

[0016] A locking screw is also movably connected to the column. A locking nut is fixedly installed at one end of the locking screw that passes through the gripper disc. The camera clearance groove is located at the center of the camera clearance groove. A handwheel nut is fixedly installed at one end of the locking screw that protrudes from the column and extends to the outside of the support cover.

[0017] As a preferred embodiment of the photovoltaic panel hot spot detection auxiliary infrared instrument support device of the present invention, wherein: a threaded seat is fixedly installed at the bottom end of the support cover and is distributed concentrically with the gripper disk; the end of the locking screw near the handwheel nut is threadedly connected to the threaded seat; and the threaded seat is located between the column and the handwheel nut.

[0018] The threaded seat is also fixedly mounted with vertically distributed guide shafts, and the end of the guide shaft away from the threaded seat extends into the column. The column is slidably set along the axis of the locking screw through the guide shaft.

[0019] In summary, the present invention has at least one of the following beneficial effects:

[0020] 1. This invention, through the threaded engagement of the threaded sleeves distributed in a ring array with the threaded shaft of the clamping plate mechanism, combined with the bearing connection between the vertical plate and the threaded shaft and the stepped groove design of the photovoltaic panel pad, can flexibly adjust the vertical plate spacing to adapt to photovoltaic panels of different sizes, and can switch the stepped surface according to the thickness of the photovoltaic panel and finely adjust the spacing between the device and the photovoltaic panel. Compared with the traditional handheld operation, it greatly improves the assembly stability of the device and the photovoltaic panel.

[0021] 2. This invention, through the cooperation of a symmetrical camera clamp with a slanted end in a standard limiting mechanism, a guide slide, and a positive and negative threaded adjusting screw, as well as the design of a camera screw and a buffer rubber strip, achieves rapid initial positioning of the square infrared instrument, adaptation to different widths, and double screw fixing, thereby improving the stability and adaptability of the square infrared instrument support.

[0022] 3. This invention, through the linkage structure of the ring array of limiting claws, claw disks and return springs in the ring-mounted limiting mechanism, combined with the cooperation of guide shaft, locking screw and threaded seat, realizes the rapid insertion of columnar infrared instrument, adaptation to different diameters and uniform circumferential clamping, and can adapt to two mainstream infrared instruments without changing the bracket. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0024] Figure 1 This is a schematic diagram of the inspection status of the present invention;

[0025] Figure 2 This is a perspective view of the present invention;

[0026] Figure 3 This is a structural diagram showing the mating installation of the clamping mechanism and the limiting body of the present invention;

[0027] Figure 4 This is a structural diagram showing the mating and installation of the threaded sleeve and clamping plate mechanism of the present invention;

[0028] Figure 5 The diagram shows the structure of the standard limiting mechanism and the ring-mounted limiting mechanism of the present invention.

[0029] Figure 6 This is a cross-sectional view of the standard limiting mechanism and the ring-mounted limiting mechanism of the present invention;

[0030] Figure 7 This is a schematic diagram of the ring-mounted limiting mechanism of the present invention.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Support cover; 11. Guide groove; 12. Clearance groove; 2. Threaded sleeve; 3. Clamping plate mechanism; 31. Threaded shaft; 32. Vertical plate; 321. Bearing; 322. Photovoltaic panel pad; 3221. Stepped groove; 4. Standard limiting mechanism; 41. Camera clamp; 411. Camera screw; 412. Inclined groove end; 42. Adjusting screw; 43. Buffer rubber strip; 5. Ring-mounted limiting mechanism; 51. Limiting gripper; 511. Gripper shaft; 512. Snap-fit ​​end; 52. Gripper disc; 521. Camera clearance groove; 522. Snap-fit ​​ring groove; 53. Column; 54. Return spring; 55. Locking screw; 551. Locking nut; 552. Handwheel nut; 56. Threaded seat; 561. Guide shaft. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] This invention discloses a support device for an auxiliary infrared instrument for detecting hot spots on photovoltaic panels.

[0035] Example 1

[0036] Reference Figure 1-7 This invention provides a first embodiment of a photovoltaic panel hot spot detection auxiliary infrared instrument support device. This support device includes a support cover 1 and threaded sleeves 2. The threaded sleeves 2 are arranged in a ring array around the support cover 1. A clamping mechanism 3 for assembling the photovoltaic panel is detachably installed on the support cover 1 via the threaded sleeves 2. The support cover 1 also has a limiting body, which consists of a standard limiting mechanism 4 for assembling a square infrared instrument and a ring-shaped limiting mechanism 5 for assembling a columnar infrared instrument. The clamping mechanism 3 includes threaded shafts 31 corresponding to the threaded sleeves 2 one-to-one. One end of the threaded shaft 31 extends into the threaded sleeve 2 and is threadedly connected to it. A vertically distributed upright plate 32 is provided at the end of the upright plate 31 protruding from the threaded sleeve 2. A photovoltaic panel pad 322, which abuts against the photovoltaic panel, is fixedly installed at the end of the upright plate 32 away from the threaded shaft 31. The upright plate 32 slides along the axial direction of the threaded sleeve 2 via the threaded shaft 31. The core load-bearing structure of the device is made of high-strength, lightweight materials, ensuring structural stability and portability. After assembly with the threaded sleeve 2 and clamping mechanism 3, the photovoltaic panel can be clamped, ensuring the stability of the hot spot detection process. The limiting body integrates the standard limiting mechanism 4 and the ring-mounted limiting mechanism 5, which can adapt to two mainstream infrared instruments without replacing the bracket, solving the problem of poor compatibility of existing brackets. The threaded shaft 31 and the threaded sleeve 2 adopt a threaded fit design. By rotating the threaded shaft 31, the spacing of the upright plate 32 can be precisely adjusted to adapt to photovoltaic panels of different sizes and specifications. The photovoltaic panel pad 322 is made of elastic insulating material, which can avoid scratching the surface of the photovoltaic panel, while enhancing friction and improving the stability of the device. It is the only component that directly contacts the photovoltaic panel.

[0037] A bearing 321 corresponding to the threaded shaft 31 is fixedly installed at the end of the threaded shaft 31 away from the vertical plate 32. The vertical plate 32 is rotatably connected to the threaded shaft 31 through the bearing 321. A stepped groove 3221 is provided on the side of the photovoltaic panel pad 322 away from the vertical plate 32, and the step span of the stepped groove 3221 gradually increases from top to bottom. The bearing 321 allows the vertical plate 32 to rotate relative to the threaded shaft 31. In this way, when the threaded shaft 31 is rotated to adjust the photovoltaic panel pad 322 to fit with the photovoltaic panel, the photovoltaic panel pad 322 will not rotate synchronously with the threaded shaft 31. The stepped groove 3221 adopts a stepped design that is narrow at the top and wide at the bottom, which can be adapted to the edges of photovoltaic panels of different thicknesses. Moreover, since the height of different stepped surfaces is different, the distance between the infrared instrument and the photovoltaic panel can be adjusted within a certain range by fitting the photovoltaic panel to different stepped surfaces.

[0038] The standard limiting mechanism 4 includes camera clips 41 symmetrically distributed on the support cover 1. The support cover 1 has a guide groove 11 for limiting the sliding of the camera clips 41. The camera clips 41 have camera screw holes 411 adapted to the camera screws. An adjusting screw 42 is rotatably connected below the guide groove 11. The adjusting screw 42 extends to one end of the support cover 1 and is threadedly connected to one end of the camera clips 41 located in the guide groove 11. The camera clips 41 can position the infrared instrument from both sides. The guide groove 11 restricts the camera clips 41 to slide only in the horizontal direction, ensuring that the central axis of the infrared instrument does not deviate during the adjustment process. Rotating the adjusting screw 42 can drive the two sets of camera clips 41 to move closer or further away synchronously, quickly adapting to square infrared instruments of different widths. The camera screw holes 411 conform to the industry standard camera screw specifications and can accurately match the camera screws and the screw holes at the bottom of the square infrared instrument, realizing the detachable fixing of the infrared instrument, improving installation stability, and belonging to the conventional fixing solution of existing cameras.

[0039] The top of the camera clamp 41 is also provided with inclined grooves 412. Buffer strips 43 are fixedly installed on the inner side of the camera clamp 41 and on both sides of the camera screw hole 411. The inclined grooves 412 are designed with an inclined angle to form a guide slope, which allows the square infrared instrument to be quickly placed between the camera clamps 41 without precise alignment to complete the initial positioning. The buffer strips 43 are made of high-density sponge or silicone material and have a certain elastic deformation capability. They can fill the gap between the infrared instrument and the camera clamp 41 to prevent the infrared instrument from shaking, absorb slight vibrations during the detection process, and prevent the infrared instrument shell from being scratched.

[0040] The ring-mounted limiting mechanism 5 includes limiting grippers 51 arranged in a ring array around the support cover 1. The support cover 1 also has clearance slots 12 for avoiding the limiting grippers 51. Each limiting gripper 51 is fixedly mounted with a gripper shaft 511. The limiting grippers 51 are rotatably connected to the corresponding clearance slots 12 via the gripper shafts 511. A gripper disk 52, concentrically distributed with the support cover 1, is also movably connected to the support cover 1. Each limiting gripper 51 extending into the gripper disk 52 has a locking end 512. The gripper disk 52 slides along the axial direction of the support cover 1. The limiting grippers 51 can uniformly clamp the columnar infrared instrument circumferentially, ensuring the center of the infrared instrument is aligned with the detection target. The clearance slots 12 provide sufficient space for the rotation of the limiting grippers 51, preventing interference between the grippers and the support cover 1 during rotation. The gripper shafts 511... The design features a wear-resistant and smooth end face, reducing rotational friction and improving smoothness of adjustment. The gripper disc 52 slides axially, synchronously driving all limit grippers 51 to rotate around the gripper shaft 511, achieving "synchronous opening and closing." The locking end 512 has a concave-convex structure, allowing it to engage with the gripper disc 52 without disengaging. When the gripper disc 52 moves axially, the opening and closing angles of all limit grippers 51 are consistent.

[0041] The gripper disk 52 has a camera clearance groove 521 at one end protruding from the support cover 1 for avoiding the infrared instrument. The gripper disk 52 also has a locking ring groove 522 that matches the locking end 512. The limiting gripper 51 is locked and connected to the locking ring groove 522 through the locking end 512. The aperture of the camera clearance groove 521 is larger than the detection lens diameter of a common columnar infrared instrument, which can prevent the gripper disk 52 from contacting the columnar infrared instrument when it moves. The locking ring groove 522 is an annular groove structure with a smooth inner wall, which can reduce the resistance when the locking end 512 slides. At the same time, the annular design can ensure that the gripper disk 52 can drive the limiting gripper 51 to move synchronously in any circumferential position, thus improving the structural reliability.

[0042] A column 53 is fixedly installed at one end of the gripper disc 52 within the support cover 1. A return spring 54 is installed inside the support cover 1 and outside the column 53. The two ends of the return spring 54 are respectively connected to the gripper disc 52 and the inner wall of the support cover 1. A locking screw 55 is also movably connected to the column 53. A locking nut 551 is fixedly installed at one end of the locking screw 55 that passes through the gripper disc 52. The camera clearance groove 521 is located at the center of the camera clearance groove 521. A handwheel nut 552 is fixedly installed at the end of the locking screw 55 that protrudes from the column 53 and extends outside the support cover 1. The column 53 provides a mounting carrier for the return spring 54. When the return spring 54 is in its normal state, it pushes the gripper disk 52 to extend outward, keeping the limiting gripper 51 open, which facilitates the quick insertion of the columnar infrared instrument. When clamping is required, the locking screw 55 pulls the gripper disk 52 to compress the return spring 54, driving the limiting gripper 51 to close. The elastic force of the return spring 54 can provide a continuous preload to prevent the clamping from loosening. The locking nut 551 is used to lock the relative position of the screw 55 and the gripper disk 52 to prevent the gripper disk 52 from shifting due to vibration during the detection process, thereby improving the clamping stability.

[0043] The bottom end of the support cover 1 is also fixedly installed with threaded seats 56 distributed concentrically with the gripper disc 52. The end of the locking screw 55 near the handwheel nut 552 is threadedly connected to the threaded seat 56. The threaded seat 56 is located between the column 53 and the handwheel nut 552. Vertically distributed guide shafts 561 are also fixedly installed on the threaded seat 56, and the ends of the guide shafts 561 away from the threaded seat 56 extend into the column 53. The column 53 is slidably arranged along the axis of the locking screw 55 through the guide shafts 561. The locking screw 55 is only threadedly connected to the threaded seat 56 and the gripper disc 52. Both column 52 and column 53 are interference fits. The locking screw 55 and the threaded seat 56 achieve "spiral locking". The sliding distance of the gripper disk 52 can be precisely adjusted by manually rotating the handwheel nut 552, thereby controlling the clamping force of the limit gripper 51. It is compatible with column infrared instruments of different diameters. The guide shaft 561 can limit column 53 to slide only along the axial direction, preventing the gripper disk 52 from rotating circumferentially or shifting, and ensuring the clamping accuracy of the limit gripper 51. The sliding fit between the guide shaft 561 and column 53 adopts a clearance fit design, which reduces sliding resistance while ensuring guiding accuracy.

[0044] When using this device to perform hot spot auxiliary detection on photovoltaic panels, if it is necessary to assemble the device with photovoltaic panels of different sizes, the clamping mechanism 3 is selected. By rotating the threaded shaft 31 on different threaded sleeves 2, the vertical plate 32 on the threaded shaft 31 moves along the axial direction of the threaded sleeve 2, thereby adjusting the spacing between each set of vertical plates 32 to adapt to photovoltaic panels of different sizes. Since the vertical plate 32 is rotatably connected to the threaded shaft 31 through the bearing 321, the photovoltaic panel pad 322 will not rotate synchronously when the threaded shaft 31 is rotated. The corresponding stepped surface on the stepped groove 3221 of the photovoltaic panel pad 322 can be selected to fit according to the thickness of the photovoltaic panel. At the same time, by switching different stepped surfaces, the spacing between the device and the photovoltaic panel can be finely adjusted to ensure that the infrared instrument's detection field of view is adapted, thereby completing the assembly between the device and photovoltaic panels of different sizes. Compared with the traditional handheld type, the stability is significantly increased.

[0045] When using a square infrared instrument with camera screws, the standard limiting mechanism 4 is selected. The guide slope of the inclined groove end 412 can guide the infrared instrument to be quickly placed between the two sets of camera clamps 41. Preliminary positioning can be completed without precise alignment. Rotating the adjusting screw 42, its thread engagement with the camera clamp 41 drives the two sets of camera clamps 41 to move closer synchronously along the guide slide 11. The buffer rubber strip 43 on the inner side of the camera clamp 41 fills the gap, absorbs vibration and prevents scratches on the infrared instrument shell. After the camera clamp 41 clamps the infrared instrument, the camera screws are threaded to the screw holes at the bottom of the infrared instrument and the camera screw opening 411 to achieve double fixation of the infrared instrument and complete the auxiliary support for the square infrared instrument.

[0046] When using a columnar infrared spectrometer, a ring-mounted limiting mechanism 5 is selected. Under normal conditions, the return spring 54 pushes the gripper disc 52 outward, driving the limiting grippers 51 to open around the gripper pivot 511. This allows the columnar infrared spectrometer to be directly inserted through the camera clearance slot 521 and placed between the limiting grippers 51. The camera clearance slot 521 prevents the infrared spectrometer from contacting the moving gripper disc 52. Manually rotating the handwheel nut 552 causes the locking screw 55 to engage with the threaded seat 56. The locking nut 551 pulls the gripper disc 52, which is connected to it, to slide axially along the guide shaft 561, compressing the return spring 54. When the gripper disc 52 moves, the engaging ring groove 522 and the engaging end 512 of the limiting gripper 51 slide together, driving each set of limiting grippers 51 in the clearance slot 12 of the support cover 1. The clamping mechanism closes inward synchronously, clamping the columnar infrared spectrometer evenly in the circumference to ensure precise alignment between the spectrometer's center and the target being detected. This provides auxiliary support for the columnar infrared spectrometer. After the clamping force is adjusted to the correct position, the spring force of the return spring 54 provides continuous preload. The locking nut 551 locks the relative position of the locking screw 55 and the gripper disc 52 to prevent vibration from causing the gripper disc 52 to shift. The guide shaft 561 restricts the column 53 to slide only axially, preventing the gripper disc 52 from shifting circumferentially and ensuring stable clamping of the columnar infrared spectrometer.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A support device for an auxiliary infrared meter for detecting hot spots on photovoltaic panels, characterized in that: It includes a support cover (1) and a threaded sleeve (2). The threaded sleeve (2) is arranged in a ring array around the support cover (1). The support cover (1) is also equipped with a clamping mechanism (3) for assembling photovoltaic panels, which is detached and installed through the threaded sleeve (2). The support cover (1) is also provided with a limiting body, which is composed of a standard limiting mechanism (4) for assembling a square infrared instrument and a ring-shaped limiting mechanism (5) for assembling a columnar infrared instrument. The clamping mechanism (3) includes a threaded shaft (31) corresponding to the threaded sleeve (2) one by one, and the threaded shaft (31) extends into the threaded sleeve (2) and is threadedly connected to the threaded sleeve (2). The end of the threaded shaft (31) protruding from the threaded sleeve (2) is provided with a vertically distributed upright plate (32). The end of the upright plate (32) away from the threaded shaft (31) is fixedly installed with a photovoltaic panel pad (322) that abuts against the photovoltaic panel. The upright plate (32) slides along the axial direction of the threaded sleeve (2) through the threaded shaft (31).

2. The photovoltaic panel hot spot detection auxiliary infrared instrument support device according to claim 1, characterized in that, The threaded shaft (31) is fixedly installed with a bearing (321) corresponding to the threaded shaft (31) at one end away from the vertical plate (32). The vertical plate (32) is rotatably connected to the outside of the threaded shaft (31) through the bearing (321). A stepped groove (3221) is opened on the side of the photovoltaic panel pad (322) away from the vertical plate (32), and the step span of the stepped groove (3221) gradually increases from top to bottom.

3. The photovoltaic panel hot spot detection auxiliary infrared instrument support device according to claim 1, characterized in that, The standard limiting mechanism (4) includes camera clips (41) symmetrically distributed on the support cover (1). The support cover (1) is provided with a guide groove (11) for limiting the sliding of the camera clips (41). The camera clips (41) are provided with camera screw holes (411) that are compatible with camera screws. An adjusting screw (42) is rotatably connected below the guide groove (11). One end of the adjusting screw (42) extends to the support cover (1) and is threadedly connected to one end of the camera clips (41) located in the guide groove (11).

4. The photovoltaic panel hot spot detection auxiliary infrared instrument support device according to claim 3, characterized in that, The top of the camera clamp (41) is also provided with inclined grooves (412), and buffer strips (43) are fixedly installed on the inner side of the camera clamp (41) and on both sides of the camera screw (411).

5. The photovoltaic panel hot spot detection auxiliary infrared instrument support device according to claim 1, characterized in that, The ring-shaped limiting mechanism (5) includes limiting claws (51) arranged in a ring array around the support cover (1). The support cover (1) is also provided with a clearance groove (12) for avoiding the limiting claws (51). Each limiting claw (51) is fixedly mounted with a claw rotating shaft (511). The limiting claws (51) are rotatably connected to the corresponding clearance grooves (12) through the claw rotating shafts (511). The support cover (1) is also movably connected to a gripper disk (52) that is concentrically distributed with the support cover (1). The limiting gripper (51) extends to one end of the gripper disk (52) and is provided with a snap-fit ​​end (512). The gripper disk (52) is slidably arranged along the axial direction of the support cover (1).

6. The photovoltaic panel hot spot detection auxiliary infrared instrument support device according to claim 5, characterized in that, The gripper disk (52) has a camera avoidance groove (521) for avoiding the infrared instrument at one end of the protruding support cover (1). The gripper disk (52) also has a snap-fit ​​ring groove (522) that is adapted to the snap-fit ​​end (512). The limiting gripper (51) is snapped and connected to the snap-fit ​​ring groove (522) through the snap-fit ​​end (512).

7. The photovoltaic panel hot spot detection auxiliary infrared instrument support device according to claim 6, characterized in that, The gripper disc (52) is fixedly installed with a column (53) at one end in the support cover (1). A return spring (54) is provided in the support cover (1) and outside the column (53). The two ends of the return spring (54) are respectively connected to the gripper disc (52) and the inner wall of the support cover (1). A locking screw (55) is also movably connected in the column (53). A locking nut (551) is fixedly installed at one end of the locking screw (55) that passes through the gripper plate (52). The camera clearance groove (521) is located at the center of the camera clearance groove (521). A handwheel nut (552) is fixedly installed at one end of the locking screw (55) that protrudes from the column (53) and extends to the outside of the support cover (1).

8. The photovoltaic panel hot spot detection auxiliary infrared instrument support device according to claim 7, characterized in that, The bottom end of the support cover (1) is also fixedly installed with a threaded seat (56) that is concentrically distributed with the gripper disc (52). The end of the locking screw (55) near the handwheel nut (552) is threadedly connected to the threaded seat (56). The threaded seat (56) is located between the column (53) and the handwheel nut (552). The threaded seat (56) is also fixedly installed with vertically distributed guide shafts (561), and the end of the guide shaft (561) away from the threaded seat (56) extends into the column (53). The column (53) is slidably set along the axis of the locking screw (55) through the guide shaft (561).

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