Testing device for photovoltaic module production

Abstract

The invention belongs to the technical field of photovoltaic module production, and particularly relates to a testing device for photovoltaic module production, which comprises a platform, a detector and a bearing plate, the positive electrode and the negative electrode of the detector are respectively provided with a terminal, and the bearing plate is arranged on the platform and is used for placing a photovoltaic module; the supporting piece and the clamping seat are arranged on the platform in a sliding mode, and the supporting piece is provided with a clamping jaw for clamping and positioning a lead head; a clamping jaw is arranged on a supporting piece capable of moving up and down to clamp a lead head of a photovoltaic module, it is ensured that the lead head is aligned with a wiring end on a detector, it is ensured that subsequent connection work is smoothly conducted, a clamping base and the supporting piece are arranged to drive the connected lead head and the wiring end to move upwards, and a wire of the lead head is in a bent and loose state, so that the detection efficiency is greatly improved. The photovoltaic module can be directly taken out; in the process of taking out the photovoltaic module, operation time is provided for automatic loosening of the clamping plates, taking out of the photovoltaic module and separation of the wiring end and the lead head can be carried out synchronously, and the working efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of photovoltaic module production, specifically a testing device for photovoltaic module production. Background Technology

[0002] Photovoltaic modules, also known as solar panels, are typically composed of multiple solar cells, encapsulation materials, aluminum alloy frames, etc. Quality inspection is required during the production process of photovoltaic modules. One of the inspection steps is the electrical performance test. The purpose is to test whether the electrical performance parameters of the module meet the design standards by simulating standard illumination conditions, screening out products with potential defects, and ensuring that the performance of the modules leaving the factory meets the standards. During the test, the wiring on the tester needs to be connected to the leads on the photovoltaic module to form a closed circuit.

[0003] A patent document with announcement number CN116073763B discloses a solar photovoltaic module testing device, including a testing platform, a testing platform cover, and a testing circuit. The photovoltaic module under test is clamped by a photovoltaic panel clamping component set on the testing platform. A power compliance indicator light is connected in series in the closed loop of the testing circuit. The on and off of the power compliance indicator light directly indicates whether the photovoltaic module under test is qualified, avoiding the situation where manual testing of photovoltaic modules is prone to misjudgment of test results.

[0004] The above-mentioned technical solutions still have some problems in practical applications. The leads on photovoltaic modules are generally connected to the photovoltaic panels by flexible wires. During testing, the leads are usually in a dangling state, and their position is not very stable. This makes the connection between the tester's terminals and the photovoltaic module's leads quite troublesome and slow, which directly affects the testing efficiency. This impact is even more significant for mass testing of photovoltaic modules.

[0005] Therefore, the present invention provides a testing device for photovoltaic module production. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: A testing device for photovoltaic module production, comprising a platform and a testing instrument, wherein the positive and negative terminals of the testing instrument are respectively provided with terminals, and the end of the terminals is provided with a probe, the probe being matched with the lead head on the photovoltaic module, and after the probe and the lead head are inserted, the testing instrument and the photovoltaic module form a closed circuit; further comprising: a supporting mechanism, the supporting mechanism comprising a supporting plate disposed on the platform for placing the photovoltaic module; and an assembly mechanism, the assembly mechanism comprising a support member and a clamping seat slidably disposed on the platform, the support member being provided with a clamp for clamping and positioning the lead head, the terminal being disposed on the clamping seat, and the probe being located below the clamp.

[0008] Preferably, the support plate is slidably connected to the platform, and the support mechanism further includes: a support spring provided on the platform for pushing the support plate to move upward; and a plurality of correction plates provided on the platform for correcting the position of the photovoltaic module, the correction plates being distributed around the periphery of the support plate, and the top of the correction plate being provided with a guide ramp.

[0009] Preferably, the gripper is provided with a reset torsion spring, and the assembly mechanism further includes a limiting post provided on the support to limit the gripper.

[0010] Preferably, the assembly mechanism further includes a limiting platform provided on the platform, the limiting platform being used to limit the initial position of the support member.

[0011] Preferably, it further includes a drive mechanism, which includes: a support fixed to the platform; an inner plate disposed in the support, the bottom end of the inner plate being connected to the card seat via a flexible transmission component.

[0012] Preferably, the driving mechanism further includes a guide cylinder fixed to the platform to guide the flexible transmission component. The flexible transmission component includes two rigid end structures, with a flexible deformable middle section between the two end structures. The two end structures are respectively connected to the inner plate and the card seat.

[0013] Preferably, the driving mechanism further includes: an outer plate slidably disposed on the support, the inner plate being movably inserted into the outer plate; a first spring disposed on the support for pushing the outer plate upward; a limiting plate fixed to the inner plate; a second spring disposed between the limiting plate and the outer plate; a baffle slidably disposed in the support, the baffle blocking below the limiting plate; and a return spring disposed on the support for pushing the baffle closer to the inner plate.

[0014] Preferably, the limiting plate has a ramp for pushing the baffle on the side near the baffle, and the driving mechanism further includes: a flange fixed to the top of the inner plate, the flange blocking the upper side of the outer plate; and a push plate fixed to the outer plate for pushing the baffle, the bottom end of the push plate having a ramp.

[0015] Preferably, the driving mechanism further includes: a pressure plate fixed to the support plate, which drives the outer plate to move downward after the support plate moves downward; and a control plate fixed to the support plate, which contacts the gripper and drives the gripper to close after the support plate moves downward.

[0016] Preferably, the control plate has a slot inside, the slot includes a sloping opening at the bottom and a vertical section at the top, the control plate is staggered from the support, and the support member has a notch for the pressure plate to pass through.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. The testing device for photovoltaic module production described in this invention uses clamps on a vertically movable support to hold the lead wires of the photovoltaic module, ensuring alignment between the lead wires and the terminals on the testing instrument, thus ensuring smooth connection. The clamps and support move the connected lead wires and terminals upwards, preventing the lead wires from becoming taut and allowing them to be bent and relaxed, thus enabling direct removal of the photovoltaic module. During the removal process, the lead wires are gradually stretched, providing time for the clamps to automatically release. This allows for separation of the terminals and lead wires during module removal, saving time, improving efficiency, and addressing the problem of taut lead wires causing damage during module removal.

[0019] 2. The testing device for photovoltaic module production described in this invention can automatically connect the swaying lead head to the tester circuit by simply controlling the placement and removal of the photovoltaic module during use. After the test, the circuit connection is automatically disconnected when the photovoltaic module is removed. This not only eliminates the trouble of setting up separate systems to control the movement of the photovoltaic module and control the circuit connection, simplifying the structure, but also has a high degree of automation and is suitable for assembly line or batch testing.

[0020] 3. The testing device for photovoltaic module production described in this invention utilizes the gravity of the photovoltaic module to control and switch the testing circuit, eliminating the need for an additional electrical control system, reducing power consumption and circuit setup, and lowering operating costs. Attached Figure Description

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] Figure 1 This is a perspective view of Embodiment 1 of the present invention;

[0023] Figure 2 This is an exploded view of the platform and its supporting plate;

[0024] Figure 3 This is an exploded view of the testing instrument, photovoltaic modules, assembly mechanism, and drive mechanism;

[0025] Figure 4 This is a schematic diagram showing the interaction between a single terminal block, a carrier plate, and a photovoltaic module.

[0026] Figure 5 This is a schematic diagram of the connection between a single set of lead heads and terminals;

[0027] Figure 6 This is an exploded view of the structure of a single set of lead heads and terminals;

[0028] In the diagram: 100, lead wire; 1, platform; 2, detector; 21, terminal; 22, probe; 3, bearing mechanism; 31, bearing plate; 32, support spring; 33, correction plate; 4, assembly mechanism; 41, support component; 411; 42, card holder; 43, gripper; 44, limiting post; 45, limiting platform; 5, drive mechanism; 51, support; 52, inner plate; 521, limiting plate; 522, second spring; 523, edge plate; 53, flexible transmission component; 531, guide cylinder; 54, outer plate; 541, first spring; 55, baffle; 551, reset spring; 56, push plate; 57, pressure plate; 58, control plate. Detailed Implementation

[0029] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0030] Example 1

[0031] like Figure 1-6 As shown in the embodiment of the present invention, a testing device for photovoltaic module production includes a platform 1 and a testing instrument 2. The testing instrument 2 has terminals 21 on its positive and negative poles, and probes 22 are provided at the ends of the terminals 21. The probes 22 are matched with lead heads 100 on the photovoltaic module. After the probes 22 and lead heads 100 are connected, the testing instrument 2 and the photovoltaic module form a closed circuit. The device also includes:

[0032] The support mechanism 3 includes a support plate 31 disposed on the platform 1 for placing photovoltaic modules;

[0033] Assembly mechanism 4 includes a support 41 and a card holder 42 slidably mounted on platform 1. The support 41 is provided with a gripper 43 for clamping and positioning the lead wire 100. The terminal 21 is mounted on the card holder 42. The probe 22 is located below the gripper 43.

[0034] Specifically, the assembly mechanism 4 has two sets, which respectively cooperate the positive and negative leads 100 with the terminals 21. The support 41 and the clamping base 42 can move up and down relative to the platform 1. The gripper 43 includes a rotating shaft and two clamping plates. The rotating shaft is located on the support 41, and the clamping plates can rotate. After the gripper 43 closes, it clamps the lead 100 and positions it so that the lead 100 is vertically aligned with the terminal. The support 41 moves up and down, causing the probe 22 on the terminal to cooperate or separate from the lead end. Initially, the gripper 43 is kept open. It should be noted that when placing the photovoltaic module, the drooping lead 100 may sway to a certain extent. The opening range of the gripper 43 is greater than the swaying range of the lead 100.

[0035] The type of tester 2 is selected according to the specific working conditions to test the power-carrying performance and other properties of the photovoltaic modules. Tester 2 can be an indicator light or a multimeter, for example, when testing the power-carrying performance of the photovoltaic modules, tester 2 uses an indicator light; the on / off state of the indicator light indicates whether the photovoltaic modules are conducting electricity well. After connecting the probe 22 of tester 2 to the lead 100 on the photovoltaic module, the circuit is connected.

[0036] The lead 100 in the photovoltaic module is connected to the photovoltaic panel by a flexible wire. When the terminal 21 is connected to the lead 100, the center needs to be aligned vertically. Since the lead 100 is drooping and its position is not fixed, traditional clamping devices have difficulty quickly clamping the lead 100 and the terminal 21 and aligning them, resulting in low testing efficiency.

[0037] When using this device to conduct batch tests on the power-carrying performance of photovoltaic modules, the platform 1 is placed in a test environment simulating light. The photovoltaic modules to be tested are placed on the carrier plate 31 in sequence and their positions are adjusted. The lead head 100 on the photovoltaic module is in a drooping state under the action of gravity, and the wire on the lead head 100 is in a state of near tension.

[0038] After the photovoltaic module is positioned, the lead head 100 is located in the middle of the open clamp 43. After the clamp 43 is closed, the clamp 43 holds the lead head 100 to prevent the lead head 100 from moving horizontally, and the lead head 100 is vertically aligned with the terminal 21.

[0039] When the card holder 42 moves upward, the card holder 42 moves the terminal 21 upward, so that the probe 22 is inserted into the lead head 100, completing the circuit connection between the detector 2 and the photovoltaic module. After the connection is completed, the terminal 21 will continue to move upward a certain distance, so that the wire on the lead head 100 is bent and the wire on the lead head 100 is not in a taut state.

[0040] After the lead wire 100 droops, the clamp 43 holds the lead wire, which is in a near-taut state, affecting the movement of the photovoltaic module. In conventional operation, it is necessary to first disconnect the lead wire 100 from the terminal 21 before the photovoltaic module can be removed, reducing work efficiency. To solve this problem, during operation, the lead wire 100 automatically moves upward after being clamped, and the lead wire 100 is in a bent and relaxed state, so the photovoltaic module can be removed directly. During the removal of the photovoltaic module, the lead wire is gradually stretched, and this process provides time for the clamp to automatically release. Therefore, the separation of the terminal 21 from the lead wire 100 can be performed during the removal of the photovoltaic module, which not only saves working time and improves work efficiency, but also improves the problem of the lead wire 100 being easily pulled and damaged when removing the photovoltaic module when it is in a taut state.

[0041] like Figure 1-4 As shown, the support plate 31 is slidably connected to the platform 1, and the support mechanism 3 further includes:

[0042] A support spring 32 is provided on the platform 1 to push the bearing plate 31 upward;

[0043] A number of calibration plates 33 are provided on the platform 1 for calibrating the position of photovoltaic modules. The calibration plates 33 are distributed around the support plate 31, and the top of the calibration plates 33 is provided with a guide ramp.

[0044] Specifically, to ensure that the lead end 100 hangs down under the action of gravity and is located in the middle of the open claws 43, the initial position of the photovoltaic module needs to be limited.

[0045] The carrier plate 31 can move up and down. Initially, the carrier plate 31 is located at the top of its movement range. After the photovoltaic module is placed on the carrier plate 31 by setting the correction plate 33, the carrier plate 31 moves down and the photovoltaic module contacts the correction plate 33 and automatically adjusts its position so that the photovoltaic module is located at the center of the carrier plate 31. This ensures that the vertical lead head 100 of the photovoltaic module is above the clamp 43. After the carrier plate 31 moves down to the bottom of its movement range, the lead head 100 also moves down into the open clamp 43. After the clamp 43 closes, it can hold the lead head 100.

[0046] It should be noted that, depending on the circumstances, damping components can be installed on the side wall of the correction plate 33 to reduce the downward movement speed of the photovoltaic module, providing more time for the lead head 100 to droop and come to rest.

[0047] like Figure 5-6 As shown, the gripper 43 is provided with a reset torsion spring, and the assembly mechanism 4 also includes a limiting post 44 provided on the support member 41 to limit the gripper 43.

[0048] Specifically, initially, the gripper 43 remains open under the action of the reset torsion spring, and the open gripper 43 is limited by the limiting post 44 to ensure that the open gripper 43 is outside the lead head 100.

[0049] like Figure 1-2 As shown, the assembly mechanism 4 also includes a limiting platform 45 provided on the platform 1, which is used to limit the initial position of the support member 41.

[0050] Specifically, initially, the support member 41 rests on the limiting platform 45 under the action of gravity. The limiting platform 45 prevents the support member 41 from moving down, so as to ensure that after the photovoltaic module and the support platform move down, the lead head 100 is inside the open gripper 43.

[0051] It should be noted that, in order to further ensure that the support member 41 can smoothly move down and stop on the limiting platform 45 and that the probe 22 can be inserted and engaged with the lead wire 100 after moving up, a tension spring can also be set on the platform 1 to drive the support member 41 to move down.

[0052] Example 2

[0053] like Figure 1-6 As shown in Example 1, another embodiment of the present invention is as follows:

[0054] It also includes a drive mechanism 5, which comprises:

[0055] Support 51 fixedly connected to platform 1;

[0056] An inner plate 52 is provided in the support 51, and the bottom end of the inner plate 52 is connected to the card seat 42 by a flexible transmission member 53.

[0057] Specifically, after the inner plate 52 moves down or up, it moves up or down via the flexible transmission component 53. After the gripper 43 holds the lead wire 100, the inner plate 52 is moved down, and the inner plate 52 moves the card holder 42 and the terminal 21 up via the flexible transmission component 53.

[0058] like Figure 5-6As shown, the driving mechanism 5 also includes a guide cylinder 531 fixed to the platform 1 to guide the flexible transmission member 53. The flexible transmission member 53 includes two rigid end structures, with a flexible deformation middle section between the two end structures. The two end structures are respectively connected to the inner plate 52 and the card seat 42.

[0059] Specifically, the flexible transmission component 53 and the guide cylinder 531 are U-shaped as a whole, and the middle section can be made of flexible metal hose.

[0060] It should be noted that other structures that can achieve reverse movement between the inner plate 52 and the card holder 42 are also suitable for the manufacture of the flexible transmission component 53.

[0061] Example 3

[0062] like Figure 3-6 As shown in Comparative Embodiment 2, another embodiment of the present invention is as follows:

[0063] The drive mechanism 5 also includes;

[0064] The outer plate 54 is slidably mounted on the support 51, and the inner plate 52 is movably inserted into the outer plate 54;

[0065] A first spring 541 is provided on the support 51 to push the outer plate 54 upward;

[0066] A limiting plate 521 fixedly connected to the inner plate 52;

[0067] A second spring 522 is provided between the limiting plate 521 and the outer plate 54;

[0068] A baffle 55 is slidably disposed in the support 51, and the baffle 55 blocks the bottom of the limiting plate 521;

[0069] A return spring 551 is provided on the support 51 to push the baffle 55 closer to the inner plate 52.

[0070] Specifically, the outer plate 54 can move up and down relative to the support 51, the inner plate 52 can move up and down relative to the outer plate 54, and the baffle 55 can move horizontally relative to the support 51. Initially, the outer plate 54 is located at the top of its movement range under the push of the first spring 541, and the baffle 55 is blocked below the limiting plate 521 to prevent the inner plate 52 from moving down; the inner plate 52 is located at the top of its movement range under the push of the second spring 522, and the card holder 42 is located at the bottom of its movement range.

[0071] After the outer plate 54 is moved downward, the first spring 541 and the second spring 522 are compressed. The moving baffle 55 causes the baffle 55 to be laterally offset from the limiting plate 521. After the baffle 55 is no longer restrained, the inner plate 52 moves downward under the action of the second spring 522, and drives the card holder 42 to move upward.

[0072] As shown in 5-6, the limiting plate 521 has a ramp for pushing the baffle 55 on the side near the baffle 55, and the driving mechanism 5 further includes:

[0073] A flange 523 is fixed to the top of the inner plate 52, and the flange 523 blocks the upper side of the outer plate 54.

[0074] A push plate 56 is fixed to the outer plate 54 for pushing the baffle 55, and the bottom end of the push plate 56 is provided with a slope.

[0075] Specifically, during the downward movement of the outer plate 54, after the push plate 56 comes into contact with the baffle 55, it drives the baffle 55 away from the inner plate 52, causing the baffle 55 to separate from the limiting plate 521.

[0076] After the downward pressure applied to the outer plate 54 is released, the first spring 541 pushes the outer plate 54 to move upward. The outer plate 54 drives the inner plate 52 to move upward through the flange 523. By setting a ramp on the limiting plate 521, the limiting plate 521 can move above the baffle 55 to complete the automatic reset.

[0077] like Figure 4-6 As shown, the drive mechanism 5 further includes:

[0078] The pressure plate 57 is fixed to the bearing plate 31. After the bearing plate 31 moves down, the outer plate 54 is driven to move down through the pressure plate 57.

[0079] The control plate 58 is fixed to the support plate 31. After the support plate 31 moves down, the control plate 58 contacts the gripper 43 and drives the gripper 43 to close.

[0080] Specifically, depending on the situation, the control board 58 can also be fixed to the pressure plate 57. After the photovoltaic module is placed on the support plate 31, during the downward movement of the support plate 31, the outer plate 54 is moved downward by the pressure plate 57, and the clamps 43 are closed by the control board 58.

[0081] like Figure 5-6 As shown, the control plate 58 has a slot inside, which includes a sloping opening at the bottom and a vertical section at the top. The control plate 58 is staggered from the support 51, and the support member 41 has a notch for the pressure plate 57 to pass through.

[0082] Specifically, after the control plate 58 moves down, the ramp first contacts the gripper 43 and drives the gripper 43 to close, and then the vertical section contacts the gripper 43, so that the gripper 43 remains in the closed state.

[0083] Working principle: When conducting batch power-on performance tests on photovoltaic modules, the photovoltaic modules are placed on the support plate 31. The gravity of the photovoltaic modules pushes the support plate 31 downward. After the support plate 31 moves downward, the photovoltaic modules come into contact with the correction plate 33. The correction plate 33 pushes the photovoltaic modules to move laterally, so that the photovoltaic modules are aligned with the center of the support plate 31, ensuring that the drooping lead head 100 is above the clamp 43.

[0084] Initially, the clamps on the support 41 open, the bearing plate 31 continues to move down and the lead wire 100 is inside the clamp 43, the control plate 58 contacts the clamp 43, so that the clamp 43 closes to hold the lead wire 100. During the closing process, the clamp 43 adjusts the position of the lead wire 100 so that after clamping, the lead wire 100 is vertically aligned with the terminal 21.

[0085] As the bearing plate 31 continues to move downward, the pressure plate 57 contacts the outer plate 54 and drives the outer plate 54 to move downward. The first spring 541 and the second spring 522 are compressed. Since the inner plate 52 is blocked by the baffle 55, the position of the inner plate 52 remains unchanged. Therefore, the height position of the support member 41 and the gripper 43 remains unchanged at this time.

[0086] After the support plate 31 continues to move downward, the push plate 56 contacts the baffle 55 and pushes the baffle 55 away, causing the baffle 55 to separate from the limiting plate 521. The second spring 522 pushes the inner plate 52 downward, and the inner plate 52 pushes the card holder 42 upward through the flexible transmission component 53, causing the terminal 21 to move upward. After the probe 22 is inserted into the lead head 100, it drives the lead head 100 and the support component 41 to move upward together, completing the circuit connection between the detector 2 and the photovoltaic module, and the wire of the lead head 100 is in a bent and relaxed state.

[0087] During the test, the photovoltaic module was always placed on the support plate 31, which was always at the bottom. The outer plate 54 was always pressed down, and the inner plate 52 was always at the bottom. The wiring maintained the connection and cooperation with the lead wire.

[0088] After the test, since the wire ends are in a bent and slack state, the photovoltaic module can be directly removed upwards. During the upward movement of the photovoltaic module, the carrier plate 31 gradually moves upwards and resets.

[0089] During the upward movement of the support plate 31, the pressure plate 57 moves upward and finally separates from the outer plate 54. The outer plate 54 moves upward and resets, and drives the inner plate 52 to move upward and reset through the edge plate 523. After the inner plate 52 moves upward, the card holder 42 and the terminal 21 move downward. The probe 22 exits from the lead head 100 to disconnect the circuit connection between the terminal 21 and the lead head 100. The control plate 58 moves upward and separates from the clamp 43. The clamp returns to the open state and releases the lead head 100 so that the photovoltaic module can be taken out.

[0090] After the photovoltaic module that has completed testing is removed, another photovoltaic module to be tested is placed on the carrier plate 31, thus enabling automated continuous testing.

[0091] During use, the device only needs to control the placement and removal of the photovoltaic module to automatically connect the swaying lead head (100) and the detector (2) circuit. After the test, when the photovoltaic module is removed, the circuit connection is automatically disconnected. This not only eliminates the trouble of setting up separate systems to control the movement of the photovoltaic module and control the circuit connection, simplifying the structure, but also has a high degree of automation, making it suitable for assembly line or batch testing. In addition, the device uses the gravity of the photovoltaic module to control the switching of the test circuit, eliminating the need for an additional electrical control system, reducing power consumption and circuit setup, and lowering the cost of use.

[0092] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A testing device for photovoltaic module production, comprising a platform (1) and a tester (2), wherein the tester (2) has terminals (21) on its positive and negative poles respectively, characterized in that: The terminal (21) is provided with a probe (22) at its end. The probe (22) is matched with the lead head (100) on the photovoltaic module. After the probe (22) is inserted into the lead head (100), the detector (2) and the photovoltaic module form a closed circuit; it also includes: The support mechanism (3) includes a support plate (31) disposed on the platform (1) for placing photovoltaic modules; Assembly mechanism (4) includes a support (41) and a card holder (42) slidably mounted on the platform (1). The support (41) is provided with a gripper (43) for clamping and positioning the lead wire (100). The terminal (21) is mounted on the card holder (42). The probe (22) is located below the gripper (43).

2. The testing device for photovoltaic module production according to claim 1, characterized in that: The support plate (31) is slidably connected to the platform (1), and the support mechanism (3) further includes: A support spring (32) is provided on the platform (1) to push the bearing plate (31) upward; A number of calibration plates (33) are provided on the platform (1) for calibrating the position of photovoltaic modules. The calibration plates (33) are distributed around the support plate (31), and the top of the calibration plates (33) is provided with a guide ramp.

3. The testing device for photovoltaic module production according to claim 2, characterized in that: The gripper (43) is provided with a reset torsion spring, and the assembly mechanism (4) further includes a limiting post (44) provided on the support member (41) to limit the gripper (43).

4. The testing device for photovoltaic module production according to claim 3, characterized in that: The assembly mechanism (4) also includes a limiting platform (45) provided on the platform (1), which is used to limit the initial position of the support (41).

5. The testing device for photovoltaic module production according to claim 4, characterized in that: It also includes a drive mechanism (5), which comprises: Support (51) fixed to platform (1); An inner plate (52) is provided in the support (51), and the bottom end of the inner plate (52) is connected to the card seat (42) by a flexible transmission member (53).

6. The testing device for photovoltaic module production according to claim 5, characterized in that: The drive mechanism (5) also includes a guide cylinder (531) fixed on the platform (1) to guide the flexible transmission member (53). The flexible transmission member (53) includes two rigid end structures, with a flexible deformation middle section between the two end structures. The two end structures are respectively connected to the inner plate (52) and the card seat (42).

7. A testing device for photovoltaic module production according to claim 6, characterized in that: The drive mechanism (5) also includes; The outer plate (54) is slidably mounted on the support (51), and the inner plate (52) is movably inserted into the outer plate (54); A first spring (541) is provided on the support (51) to push the outer plate (54) upward; A limiting plate (521) fixed to the inner plate (52); A second spring (522) is provided between the limiting plate (521) and the outer plate (54); A baffle (55) is slidably disposed in the support (51), and the baffle (55) blocks the bottom of the limiting plate (521); A return spring (551) is provided on the support (51) for pushing the baffle (55) closer to the inner plate (52).

8. A testing device for photovoltaic module production according to claim 7, characterized in that: The limiting plate (521) has a ramp on the side near the baffle (55) for pushing the baffle (55), and the driving mechanism (5) further includes: A flange (523) is fixed to the top of the inner plate (52), and the flange (523) blocks the upper side of the outer plate (54); A push plate (56) fixed to the outer plate (54) for pushing the baffle (55) has a ramp at the bottom end.

9. A testing device for photovoltaic module production according to claim 8, characterized in that: The drive mechanism (5) further includes: The pressure plate (57) is fixed to the bearing plate (31). After the bearing plate (31) moves down, the pressure plate (57) drives the outer plate (54) to move down. The control plate (58) is fixed on the support plate (31). After the support plate (31) moves down, the control plate (58) contacts the gripper (43) and drives the gripper (43) to close.

10. A testing device for photovoltaic module production according to claim 9, characterized in that: The control plate (58) has a slot inside, which includes a sloping opening at the bottom and a vertical section at the top. The control plate (58) and the support (51) are staggered. The support member (41) has a notch for the pressure plate (57) to pass through.

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