An apparatus of a junction box component housed in a junction box and designed to be coupled to a power generator. The junction box component may include one or more bypass mechanisms configured to bypass one or more substrings of the power generator in a case of malfunction or mismatch between the substring and the remainder of the power generators. The one or more bypass mechanisms may generate heat which may be transferred out of the junction box. The junction box component may be designed to conduct the heat towards the base of the junction box and/or the cover of the junction box. A heat dissipation mechanism may be mounted on the base and/or the cover. A bypass mechanism may bypass the entire power generator.

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 housing (3) for a photovoltaic panel (4) comprises first and second housing parts (1, 2). The first housing part (1) has a first contact surface (5) for direct or indirect arrangement on a surface (7) of the photovoltaic panel (4). The second housing part (2) has a second contact surface (6) for direct or indirect arrangement on the other surface (8) of the photovoltaic panel (4). The first contact surface (5) is spaced apart from the second contact surface (6) so that a slot (9) for receiving the photovoltaic panel (4) is provided by the first contact surface (5) and the second contact surface (6). The two housing parts (1, 2) are connected to each other via at least one guide (10) and are designed to be displaceable relative to one another along an assembly movement (M) so that the thickness (D) of the slot (9) is adjustable.

A solar power system is disclosed, the system including a solar panel to generate electrical energy and a solar power module. The module includes at least one battery cell to store electrical energy and a passive thermal management component. The passive thermal management component at least partially encapsulates the at least one battery cell to dissipate thermal energy. The solar power module is disposed at a backside of the solar panel such that a convectional space is provided between a planar surface of the solar power module and the backside of the solar panel. A Peltier element may be used in addition to the passive thermal management component.

A photovoltaic junction box comprising a diode module and a circuit board disposed in a box body, and a heat sink mounted on the outer surface of the box body. The diode module is attached to the back side of the heat sink and is electrically connected to cooper conductor. The heat sink is made of aluminum material and a heat-absorbing layer is provided inside the heat sink. The heat-absorbing layer is close to the diode module. The aluminum heat sink provides great thermal conductivity, therefore, can greatly increase the cooling capacity of the junction box. In addition, because metal material for higher temperature resistance is used instead of lower temperature resistance plastic material, the box body would not deform as easy, greatly increase the safety and reliability of the junction box.

The invention relates to an inverter (1) for converting a DC voltage (U.sub.DC) into an AC voltage (U.sub.AC), in particular a photovoltaic inverter for high power densities, in particular power densities of 250 W/dm3 to 500 W/dm.sup.3, having at least one DC input (5), an AC output (11), a heat sink (20), a printed circuit board (32), a DC disconnector (7), a DC-DC converter (8), an intermediate circuit (9), a DC-AC converter (10) and a housing (14) with a front cover (15) and a basic shell (16). In order to achieve a simple and compact structure of the inverter (1), the electrical components (33) of the DC-DC converter (8), intermediate circuit (9) and DC-AC converter (10) are combined into subassemblies (31), and at least the DC disconnector (7) and the subassemblies (31) of the DC-DC converter (8), intermediate circuit (9) and DC-AC converter (10) are directly arranged on the printed circuit board (32) in a U-shaped manner corresponding to the energy flow direction (34) from the DC input (5) to the AC output (11), and the printed circuit board (32) is arranged with the component side (66) facing in the direction of the base (65) of the basic shell (16) of the housing (14) and with the side opposite the component side (66) on the heat sink (20).

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 photovoltaic junction box comprises a box body, a plurality of conductive terminals, and at least one diode chip. The at least one diode chip is disposed in the box body.

A photovoltaic-inverter heat-dissipation assembly is disclosure and includes a front housing-base, a rear cover, a first heat-generating device, a first fan, a second heat-generating device and a second fan. The rear cover and the front housing-base are combined to separately form a first heat-dissipation space and a second heat-dissipation space. The rear cover includes a first air-inlet, a second air-inlet and an air-outlet. The first air-inlet and the second air-inlet are in communication with the air-outlet through the first heat-dissipation space and the second heat-dissipation space, respectively. The first fan generates a first airflow, which enters through the first air-inlet, flows through the first heating-generating device accommodated in the first heat-dissipation space, and flows out through the air-outlet. The second fan generates a second airflow, which enters through the second air-inlet, flows through the second heat-generating device accommodated in the second heat-dissipation space, and flows out through the air-outlet.

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.