Solar photovoltaic inverters
AssigneeEnecsys Limited
InventorPaul Garrity
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Abstract
The invention relates to improved techniques for manufacturing power conditioning units (inverters) for use with photovoltaic (PV) modules, and to inverters manufactured by these techniques. We describe a solar photovoltaic inverter, comprising: a power conditioning circuit mounted on a circuit board, the power conditioning circuit having a dc power input to receive dc power from one or more photovoltaic panels and an ac power output to deliver ac power to an ac mains power supply; an electrically conductive shield enclosing said circuit board; and a plastic overmould over said conductive shield and said circuit board; wherein said electrically conductive shield has one or more holes to allow said plastic overmould to extend through said shield to cover said circuit board.
Claims18
A solar photovoltaic inverter, the solar photovoltaic inverter comprising:
- a power conditioning circuit mounted on a circuit board, the power conditioning circuit having a dc power input to receive dc power from one or more photovoltaic panels and an ac power output to deliver ac power to an ac mains power supply;
- an electrically conductive shield enclosing said circuit board;
- and
- a plastic overmould over said conductive shield and said circuit board;
- wherein said electrically conductive shield comprises a set of holes to allow an injection of said plastic overmould through said conductive shield to cover said circuit board, wherein the plastic overmould extends through one or more holes in the set of holes of the conductive shield to encapsulate the solar photovoltaic inverter.
A method of manufacturing a solar photovoltaic inverter, the method comprising:
- providing a power conditioning circuit mounted on a circuit board, the power conditioning circuit having a dc power input to receive dc power from one or more photovoltaic panels and an ac power output to deliver ac power to an ac mains power supply;
- providing an electrically conductive shield enclosing said circuit board, the electrically conductive shield comprises a set of holes;
- and
- injection moulding a plastic overmould over said conductive shield and through the conductive shield to cover said circuit board, the plastic overmould extending through one or more holes in the set of holes of the conductive shield to encapsulate the solar photovoltaic inverter.
Dependencies are inferred from the claim text.