Abstract: A connector, comprising: a housing which has a first port, a second port, and a first chamber in communication with the first port and the second port; a cover, which is connected to the housing and which has a second chamber in communication with the first chamber; and a bulging portion, which is disposed in the first chamber and protrudingly extends toward the second chamber. A side groove which obliquely curves and extends towards the second chamber is provided in the first chamber. The groove structure of the connector can guide a portion of fluid which is flowing into the first chamber from the first port towards the second chamber, so as to form a spiral upward vortex, thereby enlarging a flushing region, increasing the flushing efficiency, and reducing the risk of pollution.

Abstract: A wet leakage current test system for a photovoltaic component is disclosed having a liquid pool and a voltage-withstanding insulation tester as well as a first storage rack, a lifting actuator, a second storage rack, a drying apparatus and an electrical protection device; the first storage rack is arranged above the liquid pool, and is mechanically connected with the lifting actuator; the lifting actuator is configured to drive the first storage rack to descend into the liquid pool or ascend above the liquid pool; the drying apparatus is mounted on the second storage rack, for blowing air to a front surface and a back surface of the photovoltaic component laid flat on the second storage rack; and the electrical protection device is in electrical signal connection with the voltage-withstanding insulation tester, for disabling a voltage output from the voltage-withstanding insulation tester in the case that the operator operates in a high voltage region, and/or for cutting off a power source of the voltage-wit

Abstract: Disclosed is a photovoltaic assembly, including a cooling platform for supporting the photovoltaic assembly to be cooled; a first high-temperature cloth unit provided on the cooling platform; a vacuum cover for forming a vacuum chamber together with the cooling platform, the vacuum chamber accommodating the photovoltaic assembly to be cooled; a second high-temperature cloth unit provided at a side of the vacuum cover facing the cooling platform; and a lifting bracket for driving the vacuum cover lift or fall. In the above-mentioned photovoltaic assembly, the vacuum cover is driven and lifted by the lifting bracket, and forms a vacuum chamber together with the cooling platform. The vacuum chamber creates a pressure cooling effect for the photovoltaic assembly to be cooled. In turn, the appearance defects may be reduced when the photovoltaic assembly is cooled to the normal temperature.

Abstract: The present disclosure provides a laying device. The laying device includes: a fixing bracket, a weight pulley, and a working platform. With the laying device provided in the present disclosure, the weight pulley provides a fixed pressing force for the sealing tape, and the position of the weight pulley is set in advance, so that the sealing tape is subjected to a suitable pressing force, and the pressing uniformity of the sealing tape is good. Moreover, the weight pulley is movable relative to the edge of the photovoltaic module to be processed. Thus, for the photovoltaic module to be processed whose edge is linear, the sealing tape may be laid on the photovoltaic module to be processed along a straight line, and it can be ensured that the sealing tape is laid without bending, which ensures the appearance and performance of the photovoltaic module to be processed.