SYSTEM AND METHOD FOR REDUCED THERMAL RESISTANCE BETWEEN A POWER ELECTRONICS PRINTED CIRCUIT BOARD AND A BASE PLATE
First Claim
1. An apparatus comprising:
- a base plate including a plurality of depressions;
a power electronics printed circuit board including a plurality traces and a plurality of high voltage components, the plurality of high voltage components being located at a plurality of locations corresponding to the plurality of depressions in the base plate;
a plurality of fasteners securing the printed circuit board to the base plate with the plurality of high voltage components received at the corresponding plurality of depressions;
a thermally conductive and electrically isolating interface between the base plate and the printed circuit board, the interface being made of a gap filler material conforming to the base plate and to the plurality of depressions in the base plate, and conforming to the printed circuit board and to the plurality of high voltage components.
5 Assignments
0 Petitions
Accused Products
Abstract
An apparatus includes a base plate including a plurality of depressions, and a power electronics printed circuit board including a plurality traces and a plurality of high voltage components. The plurality of high voltage components is located at a plurality of locations corresponding to the plurality of depressions in the base plate. A plurality of fasteners secures the printed circuit board to the base plate with the plurality of high voltage components received at the corresponding plurality of depressions. A thermally conductive and electrically isolating interface between the base plate and the printed circuit board is made of a gap filler material conforming to the base plate and to the plurality of depressions in the base plate, and conforming to the printed circuit board and to the plurality of high voltage components.
33 Citations
20 Claims
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1. An apparatus comprising:
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a base plate including a plurality of depressions; a power electronics printed circuit board including a plurality traces and a plurality of high voltage components, the plurality of high voltage components being located at a plurality of locations corresponding to the plurality of depressions in the base plate; a plurality of fasteners securing the printed circuit board to the base plate with the plurality of high voltage components received at the corresponding plurality of depressions; a thermally conductive and electrically isolating interface between the base plate and the printed circuit board, the interface being made of a gap filler material conforming to the base plate and to the plurality of depressions in the base plate, and conforming to the printed circuit board and to the plurality of high voltage components. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An onboard battery charger for an automotive vehicle, the battery charger comprising:
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a housing including a base plate, the base plate including a plurality of depressions; a power electronics printed circuit board including a plurality traces and a plurality of high voltage components, the plurality of high voltage components being located at a plurality of locations corresponding to the plurality of depressions in the base plate, the printed circuit board including a battery charger circuit; a plurality of fasteners securing the printed circuit board to the base plate with the plurality of high voltage components received at the corresponding plurality of depressions; a thermally conductive and electrically isolating interface between the base plate and the printed circuit board, the interface being made of a gap filler material conforming to the base plate and to the plurality of depressions in the base plate, and conforming to the printed circuit board and to the plurality of high voltage components. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A method of making a power electronics apparatus, the method comprising:
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providing a base plate including a plurality of depressions; providing a power electronics printed circuit board including a plurality traces and a plurality of high voltage components, the plurality of high voltage components being located at a plurality of locations corresponding to the plurality of depressions in the base plate; forming a thermally conductive and electrically isolating interface between the base plate and the printed circuit board, the interface being made of a gap filler material conforming to the base plate and to the plurality of depressions in the base plate, and conforming to the printed circuit board and to the plurality of high voltage components; securing the printed circuit board to the base plate with the plurality of high voltage components received at the corresponding plurality of depressions. - View Dependent Claims (17, 18, 19, 20)
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Specification