Testing device and method for testing photovoltaic module

A method for testing a photovoltaic module, applied for testing anti-stepping performance of the photovoltaic module, wherein the method comprises:

• performing a defect inspection test on the photovoltaic module, and recording a test result as an initial result;
• mounting the photovoltaic module on a color steel tile assembly;
• applying a preset load to the photovoltaic module at a preset frequency by using a test device;
• performing the defect inspection test on the loaded photovoltaic module, and recording a test result as a loading result;
• and
• comparatively analyzing the initial result and the loading result;
• wherein the photovoltaic module comprises a connecting portion and an unsupported portion, the connecting portion is configured to contact the color steel tile assembly, and the unsupported portion is configured to define a cavity with a color steel tile;
• the photovoltaic module is provided with a first test surface, a second test surface, and a third test surface, the first test surface is located at an edge of the connecting portion, the second test surface is located at the unsupported portion, the third test surface is located at a corner of the photovoltaic module;
• the test device comprises a drive assembly and a test member, the drive assembly is capable of driving the test member to move along a length direction, a width direction, and a thickness direction of the photovoltaic module;
• and
• the applying a preset load to the photovoltaic module at a preset frequency by using a test device comprises:
• driving, by the drive assembly, the test member to move along the length direction and/or the width direction of the photovoltaic module and, at the same time, driving, by the drive assembly, the test member to move along the thickness direction of the photovoltaic module at the preset frequency;
• and
• applying, by the test member, the preset load to at least one of the first test surface, the second test surface, and the third test surface;
• wherein the test member comprises a first test member and a second test member spaced apart along a width direction of the photovoltaic module;
• said driving, by the drive assembly, the test member to move along the thickness direction of the photovoltaic module at the preset frequency, comprises:
• driving, by the drive assembly, the first test member and the second test member to move alternately along the thickness direction.