A self-testing test machine for photovoltaic junction box diodes

Abstract

The present invention discloses a self-checking inspection machine for photovoltaic junction box diodes, comprising a machine body; a numerical display screen is fixedly arranged at the center of the top surface of the machine body; and further comprising: a bearing mechanism is arranged in the detection cavity inside the machine body; a driving mechanism is arranged inside the machine body, and the driving mechanism includes a driving gear, and the driving gear is rotatably arranged on the left and right sides in front of the inner bottom surface of the machine body; wherein a detection mechanism is arranged above the machine body, and a detection platform is slidably arranged above the inner part of the machine body. The self-checking inspection machine for photovoltaic junction box diodes drives the diodes to be pressed and positioned by the bearing mechanism inside the machine body, and the detection mechanism is linked to realize the detection of diodes of different specifications, and the diodes are driven to rotate by the lifting and lowering of the detector body, so as to detect the reverse voltage of the diodes.

Description

Technical Field

[0001] The invention relates to the technical field of diode detection, in particular to a self-checking detection machine for a photovoltaic junction box diode. Background Art

[0002] As an electronic device with multiple electrodes, the diode is characterized in that the conduction and cutoff of the diode itself are related to the forward or reverse direction of the voltage. Due to its unidirectional conductive performance, it is widely used in electrical appliances such as radios or industrial control circuits. However, the diode is easily damaged when overcurrent, overvoltage, high temperature, etc. occur during use. During the inspection and maintenance process, a multimeter is usually used to detect it. For example, the invention with the publication number CN114137375A discloses a diode detector, in which a rectangular circuit board is installed inside the shell, and a rectangular power supply and detection module are installed on the circuit board. After the detector is powered on, the worker uses a special clip to clamp the middle of the diode and place the electrodes at both ends of the diode on the two contact pieces. The detection module quickly reads the rectification data of the diode. The detection module will notify the buzzer to make a call if the diode passes the test, and will not make a call if the test fails.

[0003] The invention of publication number CN101452046A discloses a diode detection jig, including a detector, a display instrument, a PC, an electronic circuit controller, a multimeter, the multimeter is connected to the PC through an interface, a multi-purpose device for detecting diode performance is used, and the jig is used for detection, thereby ensuring the quality of the diode and improving the qualified rate of the product;

[0004] However, the above-mentioned diode detector still has the following problems in actual use: although the positive and negative terminals of the diode can be tested by the positive and negative lead clamps of the detector, the overall detection still requires manual operation with human assistance. It is difficult to achieve convenient clamping detection for diodes of different specifications through the lead clamps. At the same time, the reverse voltage detection of the diode also requires manual operation. The test process is slow and prone to detection errors.

[0005] Therefore, we propose a self-testing detection machine for photovoltaic junction box diodes to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to provide a self-testing inspection machine for photovoltaic junction box diodes, in order to solve the problem that the positive and negative electrodes of the diodes are detected by the positive and negative lead clamps of the existing detector, but the overall detection still requires manual operation with human assistance. It is difficult to achieve convenient clamping detection for diodes of different specifications through the lead clamps. At the same time, the reverse voltage detection of the diode also requires manual operation by humans. The test process is slow and prone to detection errors.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a self-testing inspection machine for photovoltaic junction box diodes, comprising a detection machine body, and a detection cavity opened inside the detection machine body;

[0008] A numerical display screen is fixedly arranged at the center of the top surface of the detection machine body, and an adjustment knob is arranged in front of the top surface of the detection machine body;

[0009] It also includes: a bearing mechanism is arranged in the detection cavity inside the detection machine body, and the bearing mechanism includes a bearing bottom plate, and the bearing bottom plate is slidably arranged at the bottom of the detection cavity;

[0010] The detection machine body is provided with a driving mechanism inside, and the driving mechanism includes a driving gear, and the driving gear is rotatably arranged on the left and right sides in front of the inner bottom surface of the detection machine body, and the top rotating shafts of the driving gears on the left and right sides are fixedly connected to the bottom end of the lifting threaded rod;

[0011] A detection mechanism is arranged above the detection machine body, and the detection mechanism includes a detection platform, and the detection platform is slidably arranged above the interior of the detection machine body.

[0012] Preferably, the supporting mechanism includes a rotating platform, and the rotating platform is rotatably arranged at the center position of the top surface of the supporting base plate through a bearing, and an installation groove is opened in the middle of the top surface of the rotating platform, and the rear of the top surface of the rotating platform is rotatably connected to the bottom end of the receiving flip plate through a torsion spring.

[0013] Preferably, the bearing mechanism includes an elastic lifting rod, and the elastic lifting rod is slidably arranged on the left and right sides of the rear of the rotating platform, and the top ends of the elastic lifting rods on the left and right sides are fixedly connected to the rear of the traction steel cables, and the front ends of the traction steel cables on the left and right sides are wound and connected to the bottom end rotating shaft of the guiding flip plate, and at the same time, guide gear blocks are fixedly arranged at equal angles on the outer wall of the rotating platform.

[0014] Preferably, the driving mechanism includes a guide slide rod, and the guide slide rod is fixedly installed on the left and right sides of the inner rear of the detection machine body, and the guide slide rods on the left and right sides slide through and are arranged at the inner rear of the detection platform, and the lifting threaded rod included in the driving mechanism is threadedly connected to the inner front of the detection platform.

[0015] Preferably, the driving mechanism includes a driving rack, and the driving rack is fixedly mounted on the left and right sides of the bottom surface of the supporting base plate included in the supporting mechanism, and the driving racks on the left and right sides are meshed with the driving gears on the left and right sides, and the driving rack is driven by the supporting base plate to move in the front and rear directions, thereby driving the meshing driving gear and the lifting threaded rod to drive the detection platform to rise and fall.

[0016] Preferably, the detection mechanism includes a detector body, and the detector body is elastically slidably arranged at the internal sliding center position of the detection platform, and bidirectional threaded rods are rotatably arranged on the left and right sides of the top surface of the detection platform through bearings, and the front ends of the bidirectional threaded rods on the left and right sides are meshed and connected with each other through a main sprocket mechanism, and at the same time, the front and rear ends of the symmetrically arranged bidirectional threaded rods are threadedly connected to the upper end of the hinged flip rod.

[0017] Preferably, the bottom end of the hinged flip rod included in the detection mechanism is hingedly connected to the top surface of the detector body, and the detection mechanism includes a driving shaft, and the driving shaft is rotatably arranged on the rear right side of the detection platform through a bearing, and the top end of the driving shaft is meshedly connected to the rear end of the right-side bidirectional threaded rod through a bevel gear group, and the bevel gear group on the outer wall of the driving shaft realizes a sliding and interlocking connection through the inner protrusion.

[0018] Preferably, the detection mechanism includes a lifting base plate, and a guide gear is rotatably arranged in front of the top surface of the lifting base plate through a bearing, and the top rotating shaft of the guide gear is meshedly connected to the bottom end of the driving shaft through a secondary sprocket mechanism, and the guide gear and the guide tooth block on the outer wall of the rotating platform are meshedly connected with each other, and the guide gear is driven to rotate by the driving shaft, thereby driving the meshing guide tooth block on the outer wall of the rotating platform and the placed diode to rotate to achieve the purpose of measuring the reverse voltage.

[0019] Preferably, a resistance cam is fixedly provided at the center position of the inner bottom surface of the detection machine body, and the resistance cam is distributed in a truncated cone-shaped structure, and the elastic lifting rod inside the rotating platform is resisted upward by the resistance cam, so as to guide the flip plate to flip forward and cover the diode to prevent detection errors due to differences in the specifications of the diode.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: the self-testing detector for the diode of the photovoltaic junction box drives the diode to be pressed and positioned by the bearing mechanism inside the detector body, and the detection mechanism is linked to realize the detection of diodes of different specifications, and the diode is driven to rotate by the lifting of the detector body to detect the reverse voltage of the diode. The specific contents are as follows:

[0021] 1. The rotating platform drives the diode inside the installation slot to move toward the inside of the detection machine body. During the movement, the elastic lifting rod inside the rotating platform contacts the contact convex plate inside the detection machine body. After the elastic lifting rod moves upward, the traction cable is relaxed so that the receiving flip plate connected to the torsion spring flips forward, and then contacts the positive and negative electrodes of the diode inside the installation slot, thereby improving the placement stability and increasing the contact area of ​​the detection;

[0022] 2. The bearing bottom plate drives the driving racks on the left and right sides of the bottom surface to rotate the meshing driving gears, and then the driving gears drive the fixedly connected lifting threaded rods to drive the threaded detection platform down, and the detection platform drives the detector body set inside to contact the receiving flip plate, so as to display the current of the diode through the numerical display screen;

[0023] 3. The servo motor drives the bidirectional threaded rod connected to the main sprocket mechanism to rotate, and the hinged flip rods on the front and rear sides slide outward synchronously, and then the bottom end of the hinged flip rod is limited by the hinged detector body, so that after flipping, the detector body is driven to move upward, thereby breaking away from the connection with the bottom receiving flip plate;

[0024] Furthermore, the bidirectional threaded rod drives the driving shaft to rotate through the bevel gear group, and the secondary sprocket mechanism drives the guide gear to rotate the meshing guide tooth block and the rotating platform, so that after the rotating platform drives the diode to rotate, the rotation of the bidirectional threaded rod drives the articulated flip rod to push the detector body downward again, and contact the guide flip plate again, thereby realizing the detection of the reverse voltage of the diode. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the structure after the bearing bottom plate of the present invention moves;

[0027] Figure 3 This is a schematic diagram of the installation structure of the rotating platform of the present invention;

[0028] Figure 4 This is a schematic diagram of the three-dimensional structure of the receiving and flipping plate of the present invention;

[0029] Figure 5 For the present invention Figure 4 The enlarged structural diagram at A in the middle;

[0030] Figure 6 It is a schematic diagram of the meshing structure of the driving gear and the driving rack of the present invention;

[0031] Figure 7 It is a schematic diagram of the three-dimensional structure of the interfering convex disc of the present invention;

[0032] Figure 8 For the present invention Figure 7 The enlarged structural diagram at B in the middle;

[0033] Fig. 9 This is a schematic diagram of the installation structure of the detector body of the present invention;

[0034] Fig.10 For the present invention Fig. 9 Enlarged structural diagram at point C in the middle.

[0035] In the figure: 1. Detection machine body; 2. Detection cavity; 3. Numerical display screen; 4. Adjustment knob; 5. Load-bearing base plate; 6. Driving gear; 7. Lifting threaded rod; 8. Detection platform; 9. Rotating platform; 10. Mounting trough; 11. Guide flip plate; 12. Elastic lifting rod; 13. Traction cable; 14. Guide gear block; 15. Guide slide bar; 16. Driving rack; 17. Detector body; 18. Bidirectional threaded rod; 19. Main sprocket mechanism; 20. Articulated flip rod; 21. Driving shaft; 22. Lifting base plate; 23. Guide gear; 24. Secondary sprocket mechanism; 25. Abutment cam; 26. Bevel gear set. DETAILED DESCRIPTION

[0036] 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 implementation regulations described 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.

[0037] See also Figure 1-Figure 10 , the present invention provides the following technical solutions:

[0038] Embodiment 1: In order to solve the problems existing in the detection process of existing diodes, this embodiment adopts the following technical scheme: a self-inspection detection machine for photovoltaic junction box diodes, including a detection machine body 1, and a detection cavity 2 opened inside the detection machine body 1; a bearing mechanism is arranged in the detection cavity 2 inside the detection machine body 1, and the bearing mechanism includes a bearing bottom plate 5, and the bearing bottom plate 5 is slidably arranged at the lower part of the interior of the detection cavity 2; the bearing mechanism includes a rotating platform 9, and the rotating platform 9 is rotatably arranged at the center position of the top surface of the bearing bottom plate 5 through a bearing, and an installation groove 10 is opened in the middle of the top surface of the rotating platform 9, and the rear of the top surface of the rotating platform 9 is rotatably connected to the bottom end of the receiving flip plate 11 through a torsion spring.

[0039] The bearing mechanism includes an elastic lifting rod 12, and the elastic lifting rod 12 is slidably arranged on the left and right sides of the rear of the rotating platform 9, and the top ends of the elastic lifting rods 12 on the left and right sides are fixedly connected to the rear of the traction steel cable 13, and the front ends of the traction steel cables 13 on the left and right sides are wound and connected to the bottom rotating shaft of the receiving and flipping plate 11; a resistance cam 25 is fixedly arranged at the center position of the inner bottom surface of the detection machine body 1, and the resistance cam 25 is distributed in a truncated cone structure, and the elastic lifting rod 12 inside the rotating platform 9 is resisted upward by the resistance cam 25, so that the receiving and flipping plate 11 can flip forward to press and cover the diode to prevent detection errors due to differences in the specifications of the diode.

[0040] like Figure 1 , Figure 7-Figure 8 As shown, when it is necessary to test the diode, the diode is first placed manually in the installation groove 10 opened inside the rotating platform 9 above the supporting base plate 5, and then the supporting base plate 5 is pushed into the detection cavity 2 opened inside the detection machine body 1. When the elastic lifting rods 12 on the left and right sides behind the rotating platform 9 follow and enter the interior of the detection machine body 1, the bottom end of the elastic lifting rod 12 contacts with the bottom surface of the abutment convex plate 25, and the truncated cone-shaped abutment convex plate 25 drives the elastic lifting rod 12 to move upward so as to relax the traction steel cable 13 fixedly connected to its top end, so that the front end of the traction steel cable 13 is no longer limited by the rotating shaft of the receiving and flipping plate 11, so that the receiving and flipping plate 11 connected by the torsion spring flips forward, and then contacts with the positive and negative poles of the diode inside the installation groove 10, thereby improving the placement stability and increasing the contact area of ​​the detection.

[0041] Embodiment 2: In order to solve the problems existing in the detection process of the existing diodes, this embodiment adopts the following technical scheme: a driving mechanism is arranged inside the detection machine body 1, and the driving mechanism includes a driving gear 6, and the driving gear 6 is rotatably arranged on the left and right sides in front of the inner bottom surface of the detection machine body 1, and the top rotating shafts of the driving gears 6 on the left and right sides are fixedly connected to the bottom end of the lifting threaded rod 7; the driving mechanism includes a guide slide bar 15, and the guide slide bar 15 is fixedly installed on the left and right sides of the inner rear of the detection machine body 1, and the guide slide bars 15 on the left and right sides slide through the inner rear of the detection platform 8, and the lifting threaded rod 7 included in the driving mechanism is threadedly connected to the inner front of the detection platform 8.

[0042] The driving mechanism includes a driving rack 16, and the driving rack 16 is fixedly installed on the left and right sides of the bottom surface of the bearing base plate 5 included in the bearing mechanism, and the driving racks 16 on the left and right sides are meshed and connected with the driving gears 6 on the left and right sides, and the driving rack 16 is driven by the bearing base plate 5 to move in the front and rear directions, thereby driving the meshing driving gear 6 and the lifting threaded rod 7 to drive the detection platform 8 to move up and down; wherein, a detection mechanism is arranged above the detection machine body 1, and the detection mechanism includes a detection platform 8, and the detection platform 8 is slidably arranged on the upper part of the interior of the detection machine body 1; the detection mechanism includes a detector body 17, and the detector body 17 is elastically slidably arranged at the internal sliding center position of the detection platform 8, a numerical display screen 3 is fixedly arranged at the center position of the top surface of the detection machine body 1, and an adjustment knob 4 is arranged in front of the top surface of the detection machine body 1.

[0043] like Figure 3-Figure 4 , Figure 6 As shown, when the bearing base plate 5 included in the bearing mechanism moves toward the interior of the detection machine body 1, the bearing base plate 5 drives the driving racks 16 on the left and right sides of the bottom surface to rotate the meshing driving gear 6, and then the driving gear 6 drives the fixedly connected lifting threaded rod 7 to drive the threadedly connected detection platform 8 to descend along the direction of the guide slide rod 15 during the rotation process, and the detection platform 8 drives the internally arranged detector body 17 and the receiving flip plate 11 to contact each other, so as to display the current of the diode through the numerical display screen 3 arranged above the detection machine body 1.

[0044] Embodiment 3: In order to solve the problems existing in the detection process of the existing diodes, this embodiment adopts the following technical scheme: both sides of the top surface of the detection platform 8 are rotatably provided with a bidirectional threaded rod 18 through a bearing, and the front ends of the bidirectional threaded rods 18 on the left and right sides are meshed and connected with each other through a main sprocket mechanism 19, and at the same time, the front and rear ends of the symmetrically arranged bidirectional threaded rods 18 are threadedly connected to the upper end of the hinged flip rod 20; the bottom end of the hinged flip rod 20 included in the detection mechanism is hingedly connected to the top surface of the detector body 17, and the detection mechanism includes a driving shaft 21, and the driving shaft 21 is rotatably provided on the rear right side of the detection platform 8 through a bearing, and the top end of the driving shaft 21 is meshed and connected to the rear end of the right bidirectional threaded rod 18 through a bevel gear group 26, and the bevel gear group 26 on the outer wall of the driving shaft 21 realizes a sliding and interlocking connection through the inner protrusion.

[0045] The detection mechanism includes a lifting base plate 22, and a guide gear 23 is rotatably arranged in front of the top surface of the lifting base plate 22 through a bearing, and the top rotating shaft of the guide gear 23 is meshed and connected to the bottom end of the driving shaft 21 through a secondary sprocket mechanism 24, and at the same time, the outer wall of the rotating platform 9 is fixedly provided with guide tooth blocks 14 at equal angles, and the guide gear 23 and the guide tooth blocks 14 on the outer wall of the rotating platform 9 are meshed and connected with each other, and the guide gear 23 is driven to rotate by the driving shaft 21, thereby driving the meshing guide tooth blocks 14 on the outer wall of the rotating platform 9 and the placed diodes to rotate to achieve the purpose of measuring the reverse voltage.

[0046] like Figure 4-Figure 5 , Figure 9-10 As shown, when it is necessary to perform reverse voltage detection on the diode, the bidirectional threaded rod 18 meshed with the main sprocket mechanism 19 above the detection platform 8 is connected to the servo motor, so that the bidirectional threaded rod 18 drives the hinged flip rods 20 on the front and rear sides to slide synchronously outward, and then the bottom end of the hinged flip rod 20 is limited by the hinged detector body 17, so that after flipping, the detector body 17 is driven to move upward, thereby breaking away from the connection with the bottom surface receiving flip plate 11;

[0047] Furthermore, the rotating bidirectional threaded rod 18 drives the meshing driving shaft 21 to rotate through the bevel gear group 26, and the driving shaft 21 drives the guide gear 23 above the supporting base plate 22 to rotate through the secondary sprocket mechanism 24, and then the guide gear 23 drives the meshing guide tooth block 14 to drive the rotating platform 9 to rotate, and then the rotating platform 9 drives the diode inside the installation slot 10 to rotate 180°, and then the rotation of the bidirectional threaded rod 18 drives the articulated flip rod 20 to push the detector body 17 downward again, and contact the receiving flip plate 11 again, thereby realizing the detection of the reverse voltage of the diode.

[0048] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-testing inspection machine for a photovoltaic junction box diode, comprising a inspection machine body (1), and an inspection cavity (2) disposed inside the inspection machine body (1); A numerical display screen (3) is fixedly arranged at the center position of the top surface of the detection machine body (1), and an adjustment knob (4) is arranged in front of the top surface of the detection machine body (1); It is characterized in that Also includes: A bearing mechanism is arranged in the detection cavity (2) inside the detection machine body (1), and the bearing mechanism comprises a bearing bottom plate (5), and the bearing bottom plate (5) is slidably arranged at the bottom of the detection cavity (2); The detection machine body (1) is provided with a driving mechanism inside, and the driving mechanism includes a driving gear (6), and the driving gear (6) is rotatably arranged on the left and right sides in front of the inner bottom surface of the detection machine body (1), and the top rotating shafts of the driving gears (6) on the left and right sides are fixedly connected to the bottom end of the lifting threaded rod (7); Wherein, a detection mechanism is arranged above the detection machine body (1), and the detection mechanism includes a detection platform (8), and the detection platform (8) is slidably arranged above the inside of the detection machine body (1); The bearing mechanism comprises a rotating platform (9), and the rotating platform (9) is rotatably arranged at the center position of the top surface of the bearing bottom plate (5) through a bearing, and a mounting groove (10) is opened in the middle of the top surface of the rotating platform (9), and the rear of the top surface of the rotating platform (9) is rotatably connected to the bottom end of the receiving flip plate (11) through a torsion spring; The bearing mechanism comprises an elastic lifting rod (12), and the elastic lifting rod (12) is slidably arranged on the left and right sides of the rear of the rotating platform (9), and the top ends of the elastic lifting rods (12) on the left and right sides are fixedly connected to the rear of the traction steel cables (13), and the front ends of the traction steel cables (13) on the left and right sides are wound and connected to the bottom end rotation axis of the receiving and turning plate (11), and the outer wall of the rotating platform (9) is fixedly provided with guide tooth blocks (14) at equal angles.

2. A self-testing inspection machine for photovoltaic junction box diodes according to claim 1, characterized in that: The driving mechanism comprises a guide slide bar (15), and the guide slide bar (15) is fixedly mounted on the left and right sides of the inner rear of the detection machine body (1), and the guide slide bars (15) on the left and right sides slide through and are arranged at the inner rear of the detection platform (8), and the lifting threaded rod (7) included in the driving mechanism is threadedly connected to the inner front of the detection platform (8).

3. A self-testing inspection machine for photovoltaic junction box diodes according to claim 2, characterized in that: The driving mechanism comprises a driving rack (16), and the driving rack (16) is fixedly mounted on the left and right sides of the bottom surface of a bearing base plate (5) included in the bearing mechanism, and the driving racks (16) on the left and right sides are meshed with the driving gears (6) on the left and right sides, and the driving racks (16) are driven by the bearing base plate (5) to move in the front-rear direction, thereby driving the meshed driving gears (6) and the lifting threaded rod (7) to drive the detection platform (8) to move up and down.

4. A self-testing inspection machine for photovoltaic junction box diodes according to claim 1, characterized in that: The detection mechanism comprises a detector body (17), and the detector body (17) is elastically slidably arranged at the inner sliding center position of the detection platform (8), and bidirectional threaded rods (18) are rotatably arranged on the left and right sides of the top surface of the detection platform (8) through bearings, and the front ends of the bidirectional threaded rods (18) on the left and right sides are meshed and connected with each other through a main sprocket mechanism (19), and the front and rear ends of the symmetrically arranged bidirectional threaded rods (18) are threadedly connected to the upper end of the hinged flip rod (20).

5. A self-testing inspection machine for photovoltaic junction box diodes according to claim 4, characterized in that: The bottom end of the hinged flip rod (20) included in the detection mechanism is hingedly connected to the top surface of the detector body (17), and the detection mechanism includes a driving shaft (21), and the driving shaft (21) is rotatably arranged on the right side of the rear of the detection platform (8) through a bearing, and the top end of the driving shaft (21) is meshedly connected to the rear end of the right bidirectional threaded rod (18) through a bevel gear group (26), and the bevel gear group (26) on the outer wall of the driving shaft (21) is connected by sliding engagement through the inner protrusion.

6. A self-testing inspection machine for photovoltaic junction box diodes according to claim 5, characterized in that: The detection mechanism comprises a lifting base plate (22), and a guide gear (23) is rotatably arranged in front of the top surface of the lifting base plate (22) through a bearing, and the top rotation axis of the guide gear (23) is meshedly connected to the bottom end of the driving shaft (21) through a secondary sprocket mechanism (24), and the guide gear (23) and the guide tooth block (14) on the outer wall of the rotating platform (9) are meshedly connected with each other, and the driving shaft (21) drives the guide gear (23) to rotate, thereby driving the meshed guide tooth block (14) on the outer wall of the rotating platform (9) and the placed diode to rotate to achieve the function of measuring reverse voltage.

7. A self-testing inspection machine for photovoltaic junction box diodes according to claim 1, characterized in that: A contact convex disc (25) is fixedly arranged at the center of the inner bottom surface of the detection machine body (1), and the contact convex disc (25) is arranged in a truncated cone-shaped structure. The contact convex disc (25) contacts the elastic lifting rod (12) inside the rotating platform (9) upward, so as to guide the flip plate (11) to flip forward and press and cover the diode to prevent detection errors caused by differences in diode specifications.

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