An electrical box includes a first electrical component having an output terminal, and a second electrical component having an input terminal. A jumper is connected to the output terminal of the first electrical component and the input terminal of the second electrical component. The jumper defines a heat flow path between the first and second electrical components. The heat flow path defines a minimum path between the first and second electrical components along the heat flow path. A minimum distance along the minimum heat path between the first and second electrical components is greater than a minimum distance between first and second electrical components.

A junction box used for making electrical connections to a photovoltaic panel. The junction box has two chambers including a first chamber and a second chamber and a wall common to and separating both chambers. The wall may be adapted to have an electrical connection therethrough. The two lids are adapted to seal respectively the two chambers. The two lids are on opposite sides of the junction box relative to the photovoltaic panel. The two lids may be attachable using different sealing processes to a different level of hermeticity. The first chamber may be adapted to receive a circuit board for electrical power conversion. The junction box may include supports for mounting a printed circuit board in the first chamber. The second chamber is configured for electrical connection to the photovoltaic panel. A metal heat sink may be bonded inside the first chamber.

An energy storage canopy associated with a local building is provided. The energy storage canopy includes support members that can support compartments, which may be integral with or removable from the energy storage canopy. Each compartment includes a plurality of high capacity batteries to store electrical energy, at least one power conditioner to allow coupling high capacity batteries to the power grid and/or the AC distribution panel of the local building, and a refrigerant energy storage tank containing a working fluid. The refrigerant energy storage tank contains piping or ductwork to be in fluid communication with the HVAC system, refrigerant system, or atmosphere of the local building to provide stored refrigerant energy to the local building.

The present application discloses an axial diode junction box and a method for manufacturing the same, comprising an axial diode and a junction box body, wherein the axial diode is mounted inside the junction box body; the axial diode comprises a diode body, a first pin, and a second pin, one end of the diode body is connected to the first pin, the other end of the diode body is connected to the second pin, and a direction where the diode body is close to the junction box body is defined as a front direction; the first pin comprises a first connection portion and a first flat portion, one end of the first connection portion is connected to one end of the diode body, and the other end of the first connection portion is connected to the first flat portion; the second pin comprises a second connection portion and a second flat portion, one end of the second connection portion is connected to the other end of the diode body, and the other end of the second connection portion is connected to the second flat portion; and the diode body is clamped to the junction box body. The present application can simplify a production process, reduce a product cost, improve the product reliability, and improve the production efficiency of a production line.

An electrical unit includes a thermally conductive housing, an electrically insulating frame disposed in the thermally conductive housing, a plurality of bus bars disposed at least partially between a base wall of the thermally conductive housing and a first side of the electrically insulating frame, and a plurality of electrical components connected to a second side of the electrically insulating frame. At least one bus bar of the plurality of bus bars may be connected to the electrically insulating frame via one or more plastic rivets. Thermally conductive material may be disposed between at least one bus bar of the plurality of bus bars and a wall of the housing.

A solar junction box includes a box cover and a terminal plate. The terminal plate includes a plurality of terminals arranged side by side and diode units for connecting adjacent terminals, and the terminals and diode units are integrally packaged in plastic. Two outermost terminals are respectively used to connect cables. The terminal plate serving as a back plate of the box cover is fixedly connected to the box cover in detachable manner. A cavity for filling silica gel is formed between the box cover and the terminal plate. The assembly of the solar junction box is convenient, and it has relatively good heat dissipation and sealing performance.

A power electronics system comprising a environmentally sealed electronics compartment for housing power electronics equipment is provided. The system includes a plenum within the sealed electronic compartment for circulating air. A first liquid cooling loop is configured to cool air flowing through the plenum. A second liquid cooling loop configured to directly cool the power electronics equipment. The system includes a controller configured to independently control the flow rate of the first liquid cooling loop and the second liquid cooling loop.

A photovoltaic junction box is disclosed. The photovoltaic junction box has a base having a receiving chamber, a cover mounted on the base closing the receiving chamber, and a plurality of ventilation passageways. The plurality of ventilation passageways are disposed between a peripheral edge of the cover and a peripheral edge of the receiving chamber, and communicate between the receiving chamber and an area external of the photovoltaic junction box.

The present invention relates to a photovoltaic module. A photovoltaic module according to an embodiment of the present invention comprises a solar cell module, a micro-inverter to convert DC power generated by the solar cell module into AC power, a controller to control the micro-inverter's operation, and an interface unit connected to power grid supplying external electrical power and to provide the AC power to the power grid, the controller to control operation of the micro-inverter such that the AC power is matched to the external electrical power flowing into the power grid. The photovoltaic module according to the present invention can provide electrical power generated at solar cell modules through a simple connection to power grid which supplies electrical power to home, reducing consumption of electrical power flowing into home.

A functionally integrated detachable photovoltaic module junction box has a base part and an upper cover part. The base part has string ports and two power supply ports. The string port electrically connects to strings on a photovoltaic module. The upper cover part has a circuit board therein. The circuit board has an optimizing and monitoring circuit and multiple electrical connection pieces connected to the optimizing and monitoring circuit. The electrical connection pieces are detachably connected to the string ports and the power supply port on the base part, for the optimizing and monitoring circuit to perform such functions as component optimization, monitoring, communication and shutdown on the photovoltaic module. Use of the junction box reduces the production, assembly and maintenance costs. When the junction box requires maintenance, only the upper cover part is needed to be replaced, thereby quickly completing the repair.