Thermal management circuit
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsHidefumi Aikawa, Makoto Ikegami
Life of this patent
Estimating the term…
Abstract
The thermal management circuit includes a battery circuit (first circuit), a refrigeration cycle, and a heat dissipation circuit (second circuit). The heat dissipation circuit includes a flow path (first flow path), a flow path (second flow path), and a flow path (third flow path). The flow path connects the port (outlet port) of the condensing portion and the upstream-side HT radiator (upstream-side radiator). The flow path branches from a flow path connecting the upstream-side HT radiator and the downstream-side HT radiator (downstream-side radiator), and is connected to a port (inlet port) of the condensing portion. The flow path connects a port (inlet port) of the subcooling unit (supercooling portion) to the downstream-side HT radiator.
Claims2
A thermal management circuit installed in electrical equipment, the thermal management circuit comprising:
- a first circuit, through which flows a cooling fluid that is subjected to heat exchange with cooling-object equipment that is equipment to be cooled;
- a refrigeration cycle including a chiller and a water-cooled condenser, and also through which flows a refrigerant that is subjected to heat exchange in the chiller with the cooling fluid flowing through the first circuit;
- and
- a second circuit including a radiator portion, and also through which flows a cooling fluid that is subjected to heat exchange in the water-cooled condenser with the refrigerant flowing through the refrigeration cycle, wherein
- the second circuit includes a first flow path, a second flow path, and a third flow path, each connected to the water-cooled condenser,
- the water-cooled condenser includes a condensing portion and a supercooling portion,
- the radiator portion includes an upstream-side radiator and a downstream-side radiator that are connected in series with each other in the second circuit,
- the first flow path connects an outlet port of the cooling fluid in the condensing portion, and the upstream-side radiator,
- the second flow path branches from a flow path connecting the upstream-side radiator and the downstream-side radiator, and connects to an inlet port of the cooling fluid in the condensing portion, and
- the third flow path connects an inlet port of the cooling fluid in the supercooling portion, and the downstream-side radiator.
Dependencies are inferred from the claim text.