Electric machine
AssigneeSpal Automotive S.R.L.
InventorPietro De Filippis
Life of this patent
Estimating the term…
Abstract
An electric machine includes a casing, a cap covering the casing to define an enclosure, a heat sink, a circuit board in the enclosure having a first conductive layer as a top face, a second conductive layer as a bottom face, and vias passing through the circuit board between the top and bottom faces. An electronic component is soldered to the circuit board on the first conductive layer and disposed on top of a first part of the vias. A conductive mass is soldered to the circuit board proximal to the electronic component and disposed on top of a second part of the vias. The conductive mass forms part of the circuit through which a power supply of the electric machine flows and is in electric and heat exchange relationship with the electronic component, while the bottom face is in heat exchange relationship with the heat sink.
Claims15
An electric machine comprising:
- an enclosure including:
- a casing;
- and
- a cap configured to cover an opening in the casing;
- a heat sink, wherein the heat sink includes at least a portion of the cap;
- an electronic module positioned within the enclosure and comprising:
- a printed circuit board including a first conductive layer defining, at least partly, a first face of the printed circuit board, a second face of the printed circuit board, a plurality of vias which pass through the printed circuit board between the first face, in contact with the first conductive layer, and the second face,
- an electronic component having a base soldered to the printed circuit board on the first conductive layer and disposed, at least partly, covering at least a first part of the vias,
- a conductive mass, soldered to the printed circuit board on the first conductive layer in proximity to the electronic component and disposed, at least partly, covering at least a second part of the vias, the conductive mass and the electronic component being in heat exchange relationship through a thermal and electrical connection,
- the second face of the printed circuit board facing outwardly of the electric machine toward the heat sink and being in heat exchange relationship with the heat sink, the electronic component and the conductive mass facing inwardly of the electric machine and being in heat exchange relationship with the heat sink through the first conductive layer and at least the first part and the second part of the vias.
Dependencies are inferred from the claim text.