Solar cell test platform and test method thereof

Abstract

The invention relates to a solar cell test platform and a test method thereof. The test platform comprises a support frame, an electric connection assembly, a loading frame, a first driving assembly and a lifting assembly. The electric connection assembly is movably arranged on the supporting frame, and the electric connection assembly is configured to be connected with the testing equipment and the film surface of the solar cell to be tested. The carrying frame is rotationally arranged on the supporting frame, the carrying frame is provided with a hollow part, and the carrying frame is configured to carry the solar cell to be tested and enable the film surface of the solar cell to be tested to be arranged in the hollow part. The first driving assembly is connected with the carrying frame, and the first driving assembly is configured to drive the carrying frame to drive the solar cell to be tested to rotate relative to the supporting frame. The lifting assembly is arranged in the supporting frame, connected with the electric connection assembly and configured to drive the electric connection assembly to ascend and descend in the supporting frame. The test platform can reduce the occurrence that the film surface of the solar cell is scratched, so that the test cost is reduced, and the test efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of solar cell testing, and in particular relates to a solar cell testing platform and a testing method thereof. Background Art

[0002] After the solar cells are delivered from the production line, they need to be tested for quality, such as IV (current voltage) testing. However, in the existing solar cell testing process, workers need to flip the solar cells to be tested, which can easily scratch the film surface of the solar cells and has low testing efficiency. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a test platform for solar cells and a test method thereof, wherein the test platform can reduce the occurrence of scratches on the film surface of the solar cell, thereby reducing the test cost and improving the test efficiency.

[0004] The present invention is implemented in this way, providing a test platform for solar cells, including a support frame, an electrical connection component, a carrier frame, a first drive component and a lifting component. The electrical connection component is movably arranged in the support frame, and the electrical connection component is configured to connect the test equipment and the film surface of the solar cell to be tested, so that the test equipment tests the solar cell to be tested. The carrier frame is rotatably arranged on the support frame, and the carrier frame has a hollow portion. The carrier frame is configured to carry the solar cell to be tested and place the film surface of the solar cell to be tested in the hollow portion. The first drive component is connected to the carrier frame, and the first drive component is configured to drive the carrier frame to drive the solar cell to be tested to rotate relative to the support frame, so that the film surface of the solar cell to be tested faces the electrical connection component. The lifting component is arranged in the support frame and connected to the electrical connection component. The lifting component is configured to drive the electrical connection component to rise and fall in the support frame.

[0005] In one or more embodiments of the present specification, the electrical connection assembly includes a bracket, a first electrical connection component, and a second electrical connection component. The first electrical connection component is movably arranged on the bracket, and the second electrical connection component is arranged on the bracket relative to the first electrical connection component and can be movably arranged relative to the bracket, wherein the first electrical connection component and the second electrical connection component are configured to connect the test equipment and the film surface of the solar cell to be tested.

[0006] In one or more embodiments of the present specification, the test platform further includes a second driving assembly, which is respectively connected to the first electrical connection component and the second electrical connection component to drive the first electrical connection component and / or the second electrical connection component to move relative to the bracket.

[0007] In one or more embodiments of the present specification, the second drive assembly includes a transmission shaft and two second drive components, the transmission shaft is arranged on a bracket, the two second drive components are connected to the first electrical connection component and the second electrical connection component one by one, and the second drive component is configured to drive the first electrical connection component and the second electrical connection component to move along the axial direction of the transmission shaft.

[0008] In one or more embodiments of the present specification, the test platform further includes a clamping assembly disposed on the loading frame, and the clamping assembly is configured to clamp the solar cell to be tested.

[0009] In one or more embodiments of the present specification, the test platform includes a position sensor, which is arranged on the carrier frame and is electrically connected to the clamping assembly and the first drive assembly, respectively. The position sensor is configured to receive a clamping signal emitted by the clamping assembly, and respond to the clamping signal to trigger the first drive assembly to drive the carrier frame to rotate the solar cell to be tested.

[0010] In one or more embodiments of the present specification, the clamping assembly includes a first clamping component, a second clamping component and a power component. The first clamping component is movably arranged on the carrier frame, and the second clamping component is arranged on the carrier frame relative to the first clamping component and can be movably arranged relative to the carrier frame. The power component is drivingly connected between the first clamping component and the second clamping component, and the power component is configured to drive the first clamping component and / or the second clamping component to move, so that the first clamping component and the second clamping component cooperate with each other to clamp the solar cell to be tested between the first clamping component and the second clamping component.

[0011] In one or more embodiments of the present specification, the lifting assembly includes a connecting plate and a third driving component, the connecting plate is connected to the electrical connection assembly, and the output shaft of the third driving component is connected to the connecting plate to drive the connecting plate to drive the electrical connection assembly to lift and lower in the support frame.

[0012] In one or more embodiments of the present specification, the lifting assembly further includes a buffer component disposed between the connecting plate and the third driving component.

[0013] In one or more embodiments of the present specification, the test platform further includes a telescopic rod, a first sliding sleeve, a second sliding sleeve and a fixed rod. The telescopic rod is arranged in the support frame and connected to the connecting plate. The first sliding sleeve has a first through hole through which the output shaft of the third driving component can be inserted. The second sliding sleeve has a second through hole through which the telescopic rod can be inserted. The fixed rod is arranged on the support frame, wherein the first sliding sleeve and the second sliding sleeve are fixed to the fixed rod.

[0014] The present invention is implemented in this way, and also provides a testing method for solar cells, which uses the testing platform as described above, and includes the following steps: installing the solar cell to be tested into a loading frame, and driving the loading frame to drive the solar cell to be tested to rotate relative to the supporting frame through a first driving component, so that the film surface of the solar cell to be tested faces the electrical connection component; driving the electrical connection component to rise in the supporting frame through a lifting component until the electrical connection component connects the testing equipment and the film surface of the solar cell to be tested, so that the testing equipment can test the solar cell to be tested.

[0015] Compared with the prior art, the test platform and test method of solar cells of the present invention, the test platform includes a support frame, an electrical connection component, a carrier frame, a first drive component and a lifting component. The electrical connection component is movably arranged in the support frame, and the electrical connection component is configured to connect the test equipment and the film surface of the solar cell to be tested, so that the test equipment tests the solar cell to be tested. The carrier frame is rotatably arranged on the support frame, and the carrier frame has a hollow portion, and the carrier frame is configured to carry the solar cell to be tested and place the film surface of the solar cell to be tested in the hollow portion. The first drive component is connected to the carrier frame, and the first drive component is configured to drive the carrier frame to drive the solar cell to be tested to rotate relative to the support frame, so that the film surface of the solar cell to be tested faces the electrical connection component. The lifting component is arranged in the support frame and connected to the electrical connection component, and the lifting component is configured to drive the electrical connection component to rise and fall in the support frame. Thus, the carrier frame can receive the solar cell transmitted from the solar cell production line, and the film surface of the solar cell is placed in the hollow portion of the carrier frame, which can reduce the occurrence of scratches on the film surface of the solar cell to be tested. When testing the solar cell to be tested, the first driving component can drive the loading frame to drive the solar cell to be tested to rotate relative to the supporting frame until the film surface of the solar cell to be tested faces the electrical connection component, which can reduce the occurrence of scratches on the film surface of the solar cell caused by artificial rotation of the solar cell. At this time, the lifting component can drive the electrical connection component to rise and fall in the supporting frame so that the electrical connection component contacts or leaves the film surface of the solar cell to be tested. Therefore, the test platform provided by the embodiment of the present invention can reduce the occurrence of scratches on the film surface of the solar cell, thereby reducing the testing cost and improving the testing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0017] Figure 1A schematic top view of a test platform provided for some embodiments of the present invention; Figure 2 Based Figure 1 A top view of the CEC connection assembly; Figure 3 Based Figure 2 A schematic cross-sectional view of a CEC connection assembly; Figure 4 Based Figure 1 A schematic diagram of the assembly state of the middle clamping assembly, the object-carrying frame and the first driving assembly; Figure 5 for Figure 4 Schematic side view of .

[0018] Description of the accompanying drawings in the specific implementation manner: 10. Test platform; 100 Support frame; 200 electrical connection component; 210 bracket; 220 first electrical connection component; 230 second electrical connection component; 300 Carrying frame; 400 first drive assembly; 500 second driving assembly; 510 transmission shaft; 520 second driving component; 520a stepping motor; 520b gear set; 600 clamping assembly; 610 first clamping component; 620 second clamping component; 630 power component; 710 connecting plate; 720 third driving component; 730 buffer component; 810 telescopic rod; 820 first sliding sleeve; 830 second sliding sleeve; 840 fixed rod. DETAILED DESCRIPTION

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] In this specification, a solar cell includes a plurality of sub-cell structures connected in series, wherein, taking a sub-cell as an example, it includes an electron transport layer ETL (Electron Transporting Layer), a light-emitting layer, and a hole transport layer HTL (Hole Transporting Layer), etc., and a metal layer is covered thereon to form a metal electrode. When any one or more of the plurality of sub-cells connected in series are defective, the cell may be damaged. Therefore, it is necessary to test the performance of the solar cell (such as open circuit voltage, short circuit current, fill factor, efficiency, etc.) to promptly detect defective sub-cells in the solar cell.

[0021] On a solar cell production line, since the film surface of a solar cell is relatively fragile, it is usually placed with the film surface facing upwards, that is, not in contact with the conveying components, so as to reduce the occurrence of scratches on the film surface of the solar cell. When it is necessary to test the solar cells on the production line, in the relevant technology, the solar cells are generally flipped over by the staff, and this operation can easily scratch the film surface of the solar cell.

[0022] In view of this, the present invention provides a testing platform for solar cells, which can reduce the occurrence of scratches on the film surface of the solar cell, thereby reducing the testing cost and improving the testing efficiency.

[0023] The preferred implementation of the solar cell testing platform according to the disclosure of this specification is described in detail below with reference to the accompanying drawings.

[0024] See also Figure 1 As shown, one or more embodiments of the present specification provide a solar cell test platform 10 including a support frame 100, an electrical connection assembly 200, a carrier frame 300, a first drive assembly 400 and a lifting assembly. The electrical connection assembly 200 is movably arranged in the support frame 100, and the electrical connection assembly 200 is configured to connect the test equipment and the film surface of the solar cell to be tested (not shown in the figure) so that the test equipment can test the solar cell to be tested. The carrier frame 300 is rotatably arranged on the support frame 100, and the carrier frame 300 has a hollow portion. The carrier frame 300 is configured to carry the solar cell to be tested and place the film surface of the solar cell to be tested in the hollow portion. The first drive assembly 400 is connected to the carrier frame 300, and the first drive assembly 400 is configured to drive the carrier frame 300 to drive the solar cell to be tested to rotate relative to the support frame 100, so that the film surface of the solar cell to be tested faces the electrical connection assembly 200. The lifting assembly is disposed in the supporting frame 100 and connected to the electrical connection assembly 200 . The lifting assembly is configured to drive the electrical connection assembly 200 to rise and fall in the supporting frame 100 .

[0025] In this specification, the testing device may be any device for testing the performance or defects of a solar cell, such as a voltage-current testing device (IV testing device).

[0026] In the test platform 10 provided in the embodiment of the present specification, the carrier frame 300 can receive the solar cells transmitted from the solar cell production line, and the film surface of the solar cell is placed in the hollow part of the carrier frame 300, which can reduce the occurrence of scratches on the film surface of the solar cell to be tested. When the solar cell to be tested is tested, the first drive component 400 can drive the carrier frame 300 to drive the solar cell to be tested to rotate relative to the support frame 100 until the film surface of the solar cell to be tested faces the electrical connection component 200, which can reduce the occurrence of scratches on the film surface caused by artificial rotation of the solar cell. At this time, the lifting component can drive the electrical connection component to rise and fall in the support frame so that the electrical connection component contacts or leaves the film surface of the solar cell to be tested. Therefore, the test platform 10 provided in the embodiment of the present invention can reduce the occurrence of scratches on the film surface of the solar cell, thereby reducing the testing cost and improving the testing efficiency.

[0027] In the above embodiments, the support frame 100 may include a first frame, a second frame and two first connecting frames, the first connecting frame is horizontally connected between the first ends of the first frame and the second frame, and the electrical connection assembly 200 and the carrier frame 300 may be arranged between the first frame and the second frame.

[0028] See also Figure 2 and Figure 3 As shown, in some embodiments of the present specification, the electrical connection assembly 200 includes a bracket 210, a first electrical connection component 220, and a second electrical connection component 230. The first electrical connection component 220 is movably disposed on the bracket 210, and the second electrical connection component 230 is disposed on the bracket 210 relative to the first electrical connection component 220 and can be movably disposed relative to the bracket 210, wherein the first electrical connection component 220 and the second electrical connection component 230 are configured to connect the test equipment to the film surface of the solar cell to be tested.

[0029] It can be understood that the first electrical connection component 220 can be connected to any one of the positive and negative electrodes in the battery, and the second electrical connection component 230 can be connected to the other one of the positive and negative electrodes in the battery.

[0030] In the above-mentioned embodiments, the first electrical connection component 220 and the second electrical connection component 230 can be moved on the bracket 210, and can be moved to the target position corresponding to each sub-cell in the solar cell, and connect the test equipment and the film surface of the target position, which helps to test each sub-cell in the solar cell, thereby improving the test efficiency and test effect.

[0031] In the implementation of the present specification, the materials of the first electrical connection component 220 and the second electrical connection component 230 are both conductive materials, such as conductive rubber, copper, aluminum or alloys thereof, and the present specification does not make any specific limitation here.

[0032] Please continue reading Figure 2 and Figure 3 In some embodiments of the present specification, the test platform 10 further includes a second driving assembly 500, which is respectively connected to the first electrical connection component 220 and the second electrical connection component 230 to drive the first electrical connection component 220 and / or the second electrical connection component 230 to move relative to the bracket 210.

[0033] In the above-mentioned embodiments, the second driving assembly 500 can accurately move to the target position, shorten the test time, and thus improve the test efficiency.

[0034] In some embodiments of the present specification, the second drive assembly 500 includes a transmission shaft 510 and two second drive components 520, the transmission shaft 510 is disposed on the bracket 210, the two second drive components 520 are connected to the first electrical connection component 220 and the second electrical connection component 230 one by one, and the second drive component 520 is configured to drive the first electrical connection component 220 and the second electrical connection component 230 to move along the axial direction of the transmission shaft 510.

[0035] In the above embodiments, the transmission shaft 510 may be a screw, and the second driving component 520 includes a stepping motor 520a and a gear set 520b. The gear set 520b includes a main gear and a slave gear, the output shaft of the stepping motor 520a is connected to the main gear, the slave gear is arranged in the electrical connection component, and the slave gear is threadedly connected to the screw, and the main gear and the slave gear are meshed, so that the stepping motor 520a can drive the main gear to drive the slave gear to rotate, and then the electrical connection component can be moved along the axial direction of the screw.

[0036] In some embodiments of the present specification, the first driving assembly 400 may be a rotary cylinder capable of driving the object-carrying frame 300 to flip 180°.

[0037] See also Figure 4 and Figure 5 As shown, in some embodiments of the present specification, the test platform 10 further includes a clamping assembly 600 disposed on the carrier frame 300 , and the clamping assembly 600 is configured to clamp the solar cell to be tested.

[0038] In the above-mentioned embodiments, the clamping assembly 600 can help to stably fit the solar cell to be tested in the carrier frame 300 and stably rotate with the carrier frame 300, thereby reducing the shaking and movement of the battery during rotation, and making the membrane surface of the sub-cell in the battery accurately dock with the electrical connection components, thereby improving the test accuracy.

[0039] In some embodiments of the present specification, the test platform 10 includes a first position sensor, which is arranged on the carrier frame 300 and is electrically connected to the clamping assembly 600 and the first drive assembly 400, respectively. The first position sensor is configured to receive a clamping signal emitted by the clamping assembly 600, and respond to the clamping signal to trigger the first drive assembly 400 to drive the carrier frame 300 to drive the solar cell to be tested to rotate.

[0040] In the above-mentioned embodiments, after the clamping assembly 600 is clamped to a preset position to clamp the solar cell to be tested, the clamping signal emitted by the clamping assembly 600 is received by the first position sensor, and the first position sensor responds to the clamping signal to trigger the first driving assembly 400 to drive the carrier frame 300 to drive the solar cell to be tested to rotate. This can not only reduce the occurrence of the situation where the clamping assembly 600 is not clamped or is over-clamped, but also can drive the carrier frame 300 to rotate in time.

[0041] In addition, the test platform 10 also includes a second position sensor, which is disposed on the support frame 100 and is configured to detect the rotation angle of the carrier frame 300 , so as to help the carrier frame 300 drive the solar cell to be tested to rotate to the test position.

[0042] Please continue reading Figure 4 and Figure 5 As shown, in some embodiments of the present specification, the clamping assembly 600 includes a first clamping component 610, a second clamping component 620 and a power component 630. The first clamping component 610 is movably disposed on the carrier frame 300, and the second clamping component 620 is disposed on the carrier frame 300 relative to the first clamping component 610 and can be movably disposed relative to the carrier frame 300. The power component 630 is drivingly connected between the first clamping component 610 and the second clamping component 620, and the power component 630 is configured to drive the first clamping component 610 and / or the second clamping component 620 to move, so that the first clamping component 610 and the second clamping component 620 cooperate with each other to clamp the solar cell to be tested between the first clamping component 610 and the second clamping component 620.

[0043] In the above embodiments, the first clamping member 610 and the second clamping member 620 may be clips. In order to further reduce the damage of the clip to the battery, an elastic member is provided on the side of the clip facing the battery, which can protect the edge of the battery. Exemplarily, the elastic member may be elastic rubber, foam, etc. The power member 630 may be a clamping cylinder, which is connected between the first clamping member 610 and the second clamping member 620, so that the first clamping member 610 and / or the second clamping member 620 can be driven to move closer to each other to clamp the solar cell to be tested.

[0044] In the embodiment of the present invention, when the lifting assembly drives the electrical connection assembly 200 to descend to the non-test position of the support frame 100, the collision between the carrier frame 300 and the carrier frame 300 can be reduced. When the carrier frame 300 drives the solar cell to be tested to rotate to the test position, the lifting assembly can drive the electrical connection assembly 200 to rise to the test position, and the second driving assembly 500 drives the electrical connection component to move to the membrane surface of the target sub-cell and connect with it. Moreover, the lifting assembly can help the test platform 10 adapt to battery tests of different sizes, thereby improving the adaptability of the test platform 10.

[0045] Please refer to Figure 1 As shown, in some embodiments of the present specification, the lifting assembly includes a connecting plate 710 and a third driving component 720, the connecting plate 710 is connected to the electrical connection assembly 200, and the output shaft of the third driving component 720 is connected to the connecting plate 710 to drive the connecting plate 710 to drive the electrical connection assembly 200 to rise and fall in the support frame 100.

[0046] In the above embodiments, the third driving component 720 drives the electrical connection assembly 200 to rise and fall in the support frame 100 by driving the connecting plate 710, which can reduce the shaking of the electrical connection assembly 200 during the lifting process and cause the electrical connection assembly 200 to fail to connect with the target membrane surface.

[0047] Please continue reading Figure 1 As shown, in one or more embodiments of the present specification, the lifting assembly further includes a buffer component 730, which is disposed between the connecting plate 710 and the third driving component 720. The buffer component 730 can reduce the occurrence of damage to the battery membrane surface during the lifting process of the electrical connection assembly 200.

[0048] In the above embodiments, the third driving component 720 may be a lifting cylinder. The buffer component 730 may be an elastic component, which may be a spring or the like.

[0049] In some embodiments of the present invention, the lifting assembly further includes a first limit sensor and a second limit sensor, wherein the first limit sensor is configured to limit the rising height of the connecting plate 710 and the second limit sensor is configured to limit the falling height of the connecting plate 710.

[0050] Please continue reading Figure 1 As shown, in some embodiments of the present specification, the test platform 10 further includes a telescopic rod 810, a first sliding sleeve 820, a second sliding sleeve 830 and a fixed rod 840. The telescopic rod 810 is disposed in the support frame 100 and connected to the connecting plate 710. The first sliding sleeve 820 has a first through hole through which the output shaft of the third driving component 720 can be inserted. The second sliding sleeve 830 has a second through hole through which the telescopic rod 810 can be inserted. The fixed rod 840 is disposed on the support frame 100, wherein the first sliding sleeve 820 and the first sliding sleeve 820 are fixed to the fixed rod 840. By arranging the telescopic rod 810, the sliding sleeve and the fixed rod 840, the occurrence of side slipping of the electrical connection assembly 200 during the lifting process caused by the arrangement of the buffer component 730 can be reduced.

[0051] In some embodiments of the present specification, the test platform 10 also includes a control component, which includes a programmable logic controller (PLC), a solenoid valve, a driver and a relay. The solenoid valve is connected to the PLC and the first drive component 400, the power component 630 and the lifting component. The driver is connected between the PLC and the stepper motor. Therefore, the PLC, as a logic controller, can control the on and off of the relevant solenoid valves and the displacement of the stepper motor.

[0052] In addition, the control circuit of the test platform 10 is provided with three buttons of start, exit and emergency stop, and a total of 6 NPN sensors connected to the rotating cylinder, clamping cylinder and lifting cylinder, which are used to send a cylinder ready signal so that the PLC executes the next step of the program. At the PLC output port, the high-speed pulse port of the PLC is used to control the position of the stepper motor, and the ordinary port is used to control the rotation direction of the stepper motor. Since the working current of the solenoid valve is large, a relay is used for indirect control, and the control signal is also output by the ordinary port of the PLC. The control circuit can be powered by a 24V switching power supply to the NPN sensor, driver, relay and solenoid valve. The power supply of the PLC and the 24V switching power supply uses a 220V 50Hz AC power supply.

[0053] The present invention also provides a testing method for the testing platform, comprising: installing the solar cell to be tested into a loading frame, and driving the loading frame to drive the solar cell to be tested to rotate relative to the supporting frame through a first driving component, so that the film surface of the solar cell to be tested faces the electrical connection component; driving the electrical connection component to rise in the supporting frame through a lifting component until the electrical connection component connects the testing equipment and the film surface of the solar cell to be tested, so that the testing equipment tests the solar cell to be tested.

[0054] Specifically, the testing method of the test platform provided by the present invention for the solar cell to be tested is as follows: S100. According to the specific parameters of the solar cell to be tested, the sub-cell numbers of the start and end positions of the measurement are set, starting from the positive pole, the positive pole is No. 1, the first adjacent sub-cell is No. 2, and so on, ending at the negative pole (a similar numbering method is currently used); the PLC will send a relevant signal to the driver of the stepper motor, so that the stepper motor drives the electrical connection component to move to the corresponding sub-cell position, and the first electrical connection component and the second electrical connection component can be used as the positive and negative electrodes during the test respectively.

[0055] S200, place the solar cell to be tested with the film surface facing upwards, and place the cell flatly into the hollow step of the loading frame in the specified direction, click the start button, and the components of the test platform run according to the preset program.

[0056] S300. According to the preset program, the PLC controls the relay to indirectly control the solenoid valve of the clamping cylinder. The clamping cylinder contracts and pulls the clip to fix the solar cell to be tested. When the first position sensor receives the clamping signal, the solenoid valve of the rotating cylinder is turned on, and the rotating cylinder drives the loading frame to flip 180°. When the second position sensor receives the in-position signal, the next step of the program is carried out.

[0057] S400. Under the control of the PLC, after the solenoid valve connected to the lifting cylinder is turned on, the lifting cylinder will drive the electrical connection component to rise until the electrical connection component on the bracket contacts the battery membrane surface.

[0058] S500, the electrical connection component is connected to the test equipment through the wire to test the solar cell to be tested, and two positive electrodes and two negative electrodes can be simultaneously led out (the voltage and current test equipment needs to be connected to two positive electrodes and two negative electrodes at the same time).

[0059] S600. After the measurement is completed, press the exit button, the lifting cylinder drives the electrical connection assembly to descend, and after the limit sensor of the lifting cylinder is triggered, the rotating cylinder rotates in the opposite direction. After the flip is ready, the clamping cylinder is released, and the battery can be removed from the loading frame.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A solar cell testing platform, characterized in that: include: Support frame; An electrical connection assembly, movably disposed in the support frame, wherein the electrical connection assembly is configured to connect a test device and a film surface of a solar cell to be tested, so that the test device can test the solar cell to be tested; A loading frame, rotatably disposed on the supporting frame, the loading frame having a hollow portion, and the loading frame is configured to carry the solar cell to be tested and place the film surface of the solar cell to be tested in the hollow portion; a first driving assembly connected to the carrier frame, wherein the first driving assembly is configured to drive the carrier frame to drive the solar cell to be tested to rotate relative to the support frame so that the film surface of the solar cell to be tested faces the electrical connection assembly; A lifting component is disposed in the support frame and connected to the electrical connection component. The lifting component is configured to drive the electrical connection component to move up and down in the support frame.

2. The test platform according to claim 1, characterized in that: The electrical connection assembly comprises: Bracket; A first electrical connection component, movably disposed on the bracket; A second electrical connection component is disposed on the bracket opposite to the first electrical connection component and is movable relative to the bracket. The first electrical connection component and the second electrical connection component are configured to connect the testing device and the film surface of the solar cell to be tested.

3. The test platform according to claim 2, characterized in that: The test platform also includes: A second driving component, wherein the second driving component is respectively connected to the first electrical connection component and the second electrical connection component to drive the first electrical connection component and / or the second electrical connection component to move relative to the bracket.

4. The test platform according to claim 3, characterized in that: The second driving assembly comprises: A transmission shaft, arranged on the bracket; Two second driving components are connected to the first electrical connection component and the second electrical connection component in a one-to-one correspondence, and the second driving components are configured to drive the first electrical connection component and the second electrical connection component to move along the axial direction of the transmission shaft.

5. The test platform according to claim 1, characterized in that: The test platform also includes: A clamping assembly is disposed on the object-carrying frame, and the clamping assembly is configured to clamp the solar cell to be tested.

6. The test platform according to claim 5, characterized in that: The clamping assembly comprises: A first clamping component, movably disposed on the object-carrying frame; A second clamping component is disposed on the object-carrying frame opposite to the first clamping component and can be moved relative to the object-carrying frame; A power component is drivingly connected between the first clamping component and the second clamping component, and the power component is configured to drive the first clamping component and / or the second clamping component to move so that the first clamping component and the second clamping component cooperate with each other to clamp the solar cell to be tested between the first clamping component and the second clamping component.

7. The test platform according to claim 1, characterized in that: The lifting assembly comprises: A connecting plate connected to the electrical connection assembly; A third driving component, wherein the output shaft of the third driving component is connected to the connecting plate to drive the connecting plate to drive the electrical connection assembly to move up and down in the supporting frame.

8. The test platform according to claim 7, characterized in that: The lifting assembly further includes a buffer component disposed between the connecting plate and the third driving component.

9. The test platform according to claim 8, characterized in that: The test platform also includes: A telescopic rod, disposed in the support frame and connected to the connecting plate; A first sliding sleeve having a first through hole through which the output shaft of the third driving component can pass; A second sliding sleeve having a second through hole through which the telescopic rod can pass; A fixing rod is arranged on the supporting frame, wherein the first sliding sleeve and the second sliding sleeve are fixed to the fixing rod.

10. A method for testing a solar cell, characterized in that: The test method uses the test platform as described in any one of claims 1 to 9, and the test method comprises the following steps: The solar cell to be tested is installed in the loading frame, and the loading frame is driven by the first driving assembly to drive the solar cell to be tested to rotate relative to the supporting frame, so that the film surface of the solar cell to be tested faces the electrical connection assembly; The electrical connection assembly is driven to rise in the support frame by the lifting assembly until the electrical connection assembly connects the test equipment and the film surface of the solar cell to be tested, so that the test equipment can test the solar cell to be tested; After completing the test, it returns to its original state and prepares for the next test process cycle.

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