Patent ID: 11876203
Assignee: DANA CANADA CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  F  Y | IPC F  H

Claim 6:
7. A heat exchanger assembly, comprising:
an enclosure forming an open interior space receiving heat generating components, the enclosure comprising:
sidewalls surrounding the open interior space;
a cover portion positioned on a first end of the sidewalls;
a bottom portion positioned on a second end of the sidewalls opposite the first end, the bottom portion comprising:
a bottom wall extending between the sidewalls,
a base tray defining a plurality of fluid channels in a fluid space extending outward from the bottom wall, the plurality of fluid channels extending between an inlet manifold area and an outlet manifold area for the flow of a heat exchange fluid, the plurality of fluid channels formed by a plurality of ribs extending from a base wall of the base tray, the base wall of the base tray forming the bottommost wall of the heat exchanger and the base wall supporting the heat exchanger, a base tray sidewall extending between the base wall and a bottom wall,
a top plate positioned and supported by base tray and the ribs, the top plate sealing the fluid space from the open interior space, the top plate forming part of the bottom wall, the top plate having a first side defining a primary heat transfer area and a second side, opposite to the first side, for effecting a sealing relationship between the top plate and the base tray such that the plurality of fluid channels are defined between a bottom surface of the base tray and the second side of the top plate, and
heat transfer enhancements disposed within each of the plurality of fluid channels, wherein the heat transfer enhancements comprise one of the following alternatives: turbulizers, offset strip fins or projections formed on the second side of the top plate such that when the top plate is disposed on the base tray, the projections extend from the second side of the top plate outward into the fluid channels;

the heat generating components positioned within the enclosure, and positioned on and supported by the bottom wall including the top plate;
a fluid inlet passage extending through one of the sidewalls then through the bottom wall to carry fluid from an exterior of the heat exchanger, through the enclosure, and into the fluid space;
a fluid outlet passage extending through the bottom wall then through one of the sidewalls to carry fluid from the fluid space, through the enclosure, and into the exterior of the heat exchanger; and
engaging members form a perimeter around the fluid space within the base tray, the engaging members passing through openings in the top plate, and folding of the engaging members over the top plate compresses sealing members positioned between the base tray and the top plate to form a fluid-tight seal between the base tray and the top plate.