US 12,270,599 B2
Transport refrigeration unit
Michael Thomas Swab, Acworth, GA (US)
Assigned to CARRIER CORPORATION, Palm Beach Gardens, FL (US)
Appl. No. 15/733,991
Filed by Carrier Corporation, Palm Beach Gardens, FL (US)
PCT Filed Aug. 1, 2019, PCT No. PCT/US2019/044643
§ 371(c)(1), (2) Date Dec. 1, 2020,
PCT Pub. No. WO2020/033230, PCT Pub. Date Feb. 13, 2020.
Claims priority of provisional application 62/714,988, filed on Aug. 6, 2018.
Prior Publication US 2021/0215417 A1, Jul. 15, 2021
Int. Cl. F25D 29/00 (2006.01); B60H 1/00 (2006.01); B60H 1/32 (2006.01); F25B 6/04 (2006.01)
CPC F25D 29/003 (2013.01) [B60H 1/3232 (2013.01); B60H 1/00278 (2013.01); B60H 1/00428 (2013.01); F25B 6/04 (2013.01); F25B 2327/001 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A transport refrigeration unit, comprising:
a refrigeration unit, comprising:
a compressor having a compressor outlet, the compressor being at least partially powered by a power pack, and
a first heat exchanger having a first heat exchanger inlet and a first heat exchanger outlet; and
a power supply unit, comprising:
a second heat exchanger having a second heat exchanger inlet that is fluidly connected to the compressor outlet and a second heat exchanger outlet that is fluidly connected to the first heat exchanger inlet, and
a battery arranged to provide electric power to the compressor;
an insulated battery box, wherein the second heat exchanger and the battery are disposed within the insulated battery box;
the insulated battery box being an insulated container distinct from the refrigeration unit;
wherein the second heat exchanger is configured to receive fluid flow from the compressor outlet such that the second heat exchanger generates waste heat that heats the interior of the insulated battery box;
the transport refrigeration unit further including:
a first conduit directly connecting the compressor outlet and the second heat exchanger inlet and a first valve positioned in the first conduit;
a second conduit extending between the second heat exchanger outlet and the first heat exchanger inlet;
a second valve connected to the second conduit, the second valve movable between an open position that facilitates fluid flow through the second conduit and a closed position that inhibits fluid flow through the second conduit;
the second heat exchanger outlet connected directly to the first heat exchanger inlet through the second conduit and the second valve.