Air cooled starter-generator
AssigneeBorgWarner Inc.
InventorMatthew T. Griffen
Life of this patent
Estimating the term…
Abstract
A starter-generator for a vehicle includes a housing, an electric motor-generator, a structural electronic substrate board, a printed circuit board and a fan. The electric motor-generator has a rotor disposed in the housing, a shaft fixed to the rotor, and a stator fixed relative to the housing. The structural electronic substrate board includes a metal base plate defining a first housing closure at a first end of the housing with the shaft extending therethrough. The printed circuit board is inside the housing on a side of the rotor opposite the structural electronic substrate board. The fan is fixed to the shaft between the rotor and the structural electronic substrate board.
Claims13
A starter-generator for a vehicle, comprising:
- a housing;
- an electric motor-generator having
- a rotor disposed in the housing,
- a shaft fixed to the rotor;
- and
- a stator fixed relative to the housing;
- a structural electronic substrate board including a metal base plate defining a first housing closure at a first end of the housing with the shaft extending therethrough;
- a printed circuit board inside the housing on a side of the rotor opposite the structural electronic substrate board;
- and
- a fan fixed to the shaft between the rotor and the structural electronic substrate board wherein the electronic components coupled to the structural electronic substrate board include a plurality of power electronics components;
- and electronic components coupled to the printed circuit board include a plurality of data management components.
An air-cooled starter-generator for a vehicle, the air-cooled starter-generator comprising:
- a starter housing defining an interior about an axis, with the starter housing having a first housing end and a second housing end spaced from the first housing end along the axis and defining a plurality of apertures in the housing ends;
- an electric motor-generator disposed within the interior of the starter housing;
- a shaft partially disposed within and extending through the interior of the starter housing, with the shaft rotatably fixed to a rotor of the electric motor-generator;
- a fan blade rotatably fixed to the shaft operable to draw air into the starter housing through the apertures in the first housing end during rotation of the shaft;
- and
- an electronics system disposed entirely within the interior of the starter housing, the electronics system comprising,
- a first electronics assembly, and
- a second electronics assembly,
- wherein the first electronics assembly is disposed at the first housing end and the second electronic assembly is disposed at the second housing end, with the first electronics assembly and the second electronics assembly further defining the apertures operable to allow airflow to cool the first electronics assembly and the second electronics assembly, wherein the first electronics assembly is further defined as a power circuit assembly and the second electronics assembly is further defined as a data circuit assembly.
Dependencies are inferred from the claim text.