Carrier Corporation

Lokanath Mohanta

Arindom Joardar

Ismail Agirman

Konstantin Borisov

Jack Leon Esformes

Nicolas Fonte

Arindom Joarder

A method of forming a power electronics assembly includes forming a plurality of pathway openings in a heat exchanger body and inserting a tubular member in each pathway opening of the plurality of pathway openings. The tubular member includes a plurality of internal surface enhancements. An interference fit is defined between the tubular members and the heat exchanger body via one or more of mechanical or thermal expansion to define a plurality of fluid pathways in the heat exchanger. One or more power electronics devices are installed to the heat exchanger body.

Mechanically expanded microfin tube liquid cooled heat sink

A power electronics assembly includes one or more power electronics devices, and a heat exchanger to which the one or more power electronics devices are mounted. The heat exchanger includes a heat exchanger body, and one or more fluid pathways extending through the heat exchanger body, the heat exchanger configured to transfer thermal energy from the one or more power electronics devices into a flow of fluid passing through the one or more fluid pathways. A plurality of fins extend from an outer surface of the heat exchanger body. The flow of fluid is a flow of liquid refrigerant diverted from a condenser of a heating, ventilation, and air conditioning (HVAC) system.

Combined liquid and air cooled power electronics assembly

A heat exchanger comprising a pair of metal plates joined along corresponding mating surfaces, wherein at least one of the metal plates comprises a plurality of connected recesses which form a fluid circuit between the plates when the plates are joined, wherein the fluid circuit comprises an inlet, an inlet manifold, an outlet, an outlet manifold, and a plurality of flowpaths extending between and fluidly connecting the inlet manifold and outlet manifold, and wherein one or more of the plurality of flowpaths comprise a fluid passage and a flow constriction and wherein a ratio of the hydraulic diameter of the flow constriction to the hydraulic diameter of the fluid passage increases with increasing distance from the inlet.

Heat exchanger for power electronics

Disclosed is a double wave fin plate for a fin-tube heat exchanger, having: one half-plate having one perimeter edge with one cut-out forming one portion of a tube connector; another half-plate having another perimeter edge with another cut-out forming another portion of the tube connector; the one perimeter edge and the other perimeter edge are connected to one another about each cut-out to form the fin plate and the tube connector; one surface waveform is formed on the one half-plate; another surface waveform is formed on the other half-plate, and the one surface waveform is disposed at an angle to the other surface waveform in the fin plate.

Double wave fin plate for heat exchanger

A mixing device and a vapor compression system incorporating a mixing device are provided. The vapor compression system includes a suction line, at least two compressors, and at least one mixing device that is predominantly open (e.g., i.e., include at least a certain percentage, such as seventy percent (70%), of voids/openings). The suction line is used for transferring a working fluid made up of a mixture of a refrigerant and an oil. The suction line includes at least one inlet (e.g., for receiving the working fluid) and at least one outlet (e.g., for distributing the working fluid). The vapor compression system include a first compressor fluidly connected to a first outlet and a second compressor fluidly connected to a second outlet. At least one mixing device is disposed within the suction line (e.g., to increase an internal turbulence of the working fluid).

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Liverpool, NY, United States of America

Lokanath Mohanta