Abstract: The present disclosure relates to an apparatus for cutting substrate material, the apparatus including: a mounting frame; a base mounted to the mounting frame; an upper cutter device disposed on the mounting frame; and a substrate material clamp disposed on the upper cutter device and used to clamp substrate material, the substrate material clamp including a clamp body and a flattening member connected to the clamp body, and the flattening member being used to flatten the substrate material. In the above technical solution, the flattening member is provided on the lower surface of the substrate material clamp, and during the process that the substrate material clamp approaches the base, the flattening member flattens the curled substrate material, and thus the quality of the substrate material is improved.

Abstract: The present disclosure provides a magnetron sputtering equipment, including: a mesh shielding plate disposed in a vacuum chamber of the magnetron sputtering equipment; the vacuum chamber includes one or more coating chambers, and the mesh shielding plate is disposed on a sidewall within the coating chamber, which facilitates the smooth operation of the magnetron sputtering target, and avoids the gas pollution of the vacuum chamber, and the installation and disassembly are simple and fast. The present disclosure provides an important solution and approach for a production line of the magnetic sputtering equipment.

Abstract: An atomization device for preparing metal alloy powder which includes a main body provided with an atomization chamber, the atomization chamber is provided with an inlet and an atomization zone, the inlet is configured to introduce metal alloy liquid; a high-pressure inert gas pipeline system that is configured to provide a high-pressure inert gas introduced into an atomization zone of the atomization chamber, to atomize the metal alloy liquid; and an oxygen-containing gas pipeline system that is configured to transfer oxygen-containing gas to the atomization zone.

Abstract: Provided is a method of preparing an alloy powder, comprising the steps of: melting the metal elements to produce the alloy solution; atomizing the alloy solution into small drops under oxygen-containing atmosphere; forcing the small drops to be quickly cooled under the driving of the atomizing flow to obtain the alloy powder; wherein, when the method is used to prepare Cu—In—Ga alloy powder, Cu/(In+Ga) is 0.5 to 1.1, In/(In+Ga) is 0.2 to 0.9, Ga/(In+Ga) is 0.1 to 0.8, In/(In+Ga)+Ga/(In+Ga) is 1. Also provided is an alloy powder and a method of preparing Cu—In—Ga alloy powder.

Abstract: Techniques and systems are described that enable multiple current source prioritization with overvoltage protection.

Abstract: Disclosed are module connectors for flexible photovoltaic modules. A module connector may include a clamp and an insert configured to be inserted into the clamp. The insert may have an insert body, an electrical lead and an electrical connector. The clamp may have a body portion with a recess configured to receive the insert body, a first clamping portion configured to clamp a second portion of the electrical connector to connect it to the body portion, and a second clamping portion with a first clamping surface configured to contact a first sheet of the module and a second clamping surface configured to contact a second sheet of the module. The second clamping portion may be configured to connect the clamp to the module such that the clamp overlaps and extends around a part of the first sheet, a part of the module's exterior edge surface, and a part of the second sheet.

Abstract: The disclosure provides a solar photovoltaic module, including a front glass plate, a first packaging adhesive film, a solar cell layer, a second packaging adhesive film, a waterproof layer, a bonding layer and a polymer back plate which are bonded successively. In the solar photovoltaic module provided in the disclosure, the front glass plate with strong rigidity and a flexible polymer back plate with light weight are arranged at two sides of the solar photovoltaic module respectively, thereby reducing the overall weight of the solar photovoltaic module. Meanwhile, the overall rigidity of the solar photovoltaic module can be ensured through the glass back plate, thereby enhancing applicability of the solar photovoltaic module in various products.

Abstract: The present disclosure discloses a sputter coating device and method for a solar cell. The sputter coating device includes a target for sputtering to a substrate, a blocking unit between the target and the substrate, and the orthographic projection of the blocking unit on the substrate partially coincides with the orthographic projection of the target on the substrate.

Abstract: The present disclosure discloses a method for preparing an insulating layer of a flexible photovoltaic module. The method includes: placing the flexible photovoltaic module on a spraying device, and using a shielding component to shield both side surfaces of the flexible photovoltaic module; performing a first spraying on the sidewall to be insulated of the flexible photovoltaic module to form an insulating bottom layer; performing a second spraying on the insulating bottom layer to form an insulating top layer such that the insulating bottom layer and the insulating top layer constitute an insulating layer; and drying the insulating layer.

Abstract: This disclosure provides a method for preparing a CIGS thin film solar cell, including placing a substrate formed with a barrier layer into a sputtering chamber, and forming a doping layer on the barrier layer by sputtering, wherein the doping layer is sodium doped a hetero-molybdenum layer; detecting sodium ion content, and introducing water vapor into the sputtering chamber according to the sodium ion content when the doping layer is formed by sputtering. The method for preparing the CIGS thin film solar cell of the present disclosure introduces water vapor into the sputtering chamber according to the content of sodium ions. The water vapor may ensure the stability after sodium ion sputtering, and the content of water vapor is adjusted according to the sodium ion content.

Abstract: The present disclosure relates to an airtightness detection equipment for detecting the airtightness of a pedestal on which a target is mounted, comprising: a sealing device configured to hermetically adhere to the pedestal, forming a sealed space between the sealing device and the pedestal; a vacuum pumping device configured to evacuate the sealed space; a gas detection device configured to detect gas in the sealed space.

Abstract: The present disclosure relates to a laminated film and a method for manufacturing the laminated film. The method includes: depositing a first film layer on a substrate; forming a porous force-release contact layer on the first film layer; and forming a second film layer on the force-release contact layer, wherein the first film layer is a metal layer and the second film layer is a semiconductor layer, or the first film layer is a semiconductor layer and the second film layer is a metal layer.

Abstract: The present disclosure discloses a thread tension adjusting device comprising a body, a tension rod, an elastic element and an adjusting knob. A thread passing eye for inputting a thread is arranged below the body. A tension wheel and a thread passing wheel are rotatably arranged on the body. An adjusting knob is used for adjusting a rotational speed of the tension wheel. The elastic element has one end connected to the body and another end connected to the tension rod. The thread tension adjusting device may ensure stability of tensioning and transmitting of the thread by cooperation between the tension rod and the tension wheel, and improve precision for thread tension adjusting by the adjusting knob. In addition, the thread tension adjusting device may monitor thread breakage by the tension detector, and ensure operating stability and safety of the thread tension adjusting device.

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: Provided are novel junction boxes for solar modules. The junction boxes or J-boxes can be rotated or otherwise moved to change the module's electrical connection state. According to various embodiments, the J-boxes are movable between two or more orientations each associated with an electrical connection configuration. In particular embodiments, the configurations include two or more of an on position, an off position, an on series configuration, an on series-parallel configuration, and a bypass configuration. A J-box according to certain embodiments includes a replaceable insert. The insert may include one or more bypass diodes, an inverter or a DC/DC converter.

Abstract: Provided herein are methods of polishing and texturing surfaces thin-film photovoltaic cell substrates. The methods involve laser irradiation of a surface having a high frequency roughness in an area of 5-200 microns to form a shallow and rapidly expanding melt pool, followed by rapid cooling of the material surface. The minimization of surface tension causes the surface to re-solidify in a locally smooth surface. the high frequency roughness drops over the surface with a lower frequency bump or texture pattern remaining from the re-solidification.

Abstract: Provided are electrical routing structures for installing on buildings and for interconnecting adjacent rows of building integrable photovoltaic (BIPV) modules at the ends of these rows. The electrical routing structures may be also used for sealing interfaces with other building components, such as asphalt shingles. An electrical routing structure may include a base, top flap, side flap, and one or two connectors. After the structure is installed, the base is aligned with photovoltaic portions of BIPV modules in one row and bridges a gap between photovoltaic portions of BIPV modules in two adjacent rows. The connectors may be used to interconnect BIPV modules positioned at the ends of two adjacent rows.

Abstract: Provided are multi-module inverters and/or converters for connecting to a set of building integrable photovoltaic (BIPV) modules that are interconnected in series and arranged into photovoltaic arrays on building structures. Outputs from multiple multi-module inverters and/or converters in one array may be combined using parallel connections and then connected to an electrical grid, standalone electrical network, or central inverter. Each set is connected to a different multi-module inverter and/or converter and may have a variable number of BIPV modules. A multi-module inverter and/or converter may be positioned within or integrated into one of the BIPV modules or attached to a building structure supporting the array. In certain embodiments, a multi-module inverter and/or converter is installed in a ventilation channel on the back side of a module. A multi-module inverter and/or converter may be also integrated into an electrical routing structure connected to one of the BIPV modules.

Abstract: Provided are novel building integrable photovoltaic (BIPV) modules having integrated jumpers for interconnecting similar modules in adjacent rows. An integrated jumper is provided on a back side of the photovoltaic portion of the module and includes at least two interconnected jumper contact points. The module also has two connectors provided on the front side of its flap portion. Each connector has at least one connector contact point connected to one or more photovoltaic cells of the module. When a module is positioned over flap portions of two other modules previously installed in an adjacent row, the two jumper contact points on the back side of this new module make electrical connections to the two connector contact points on the front side of the installed modules. In turn, these connections interconnect the photovoltaic cells of the two modules without any need for additional connectors or operations.

Abstract: An integral mounting and shipping support device. The device includes a mounting structure and a shipping support structure. The shipping support structure is configured to grip an object to be shipped. The device also includes a first stacking structure and a second stacking structure. The first stacking structure of a first mounting and shipping support device is configured to couple with the second stacking structure of a second mounting and shipping support device.