US 11,731,483 B2
Temperature adjustment circuit
Tetsu Miyamoto, Saitama (JP); Toshikatsu Katagiri, Saitama (JP); Kengo Aoki, Saitama (JP); Naoki Fujihara, Saitama (JP); Ayumu Uno, Tokyo (JP); Kenta Sugitate, Saitama (JP); and Takeshi Otani, Saitama (JP)
Assigned to HONDA MOTOR CO., LTD., Tokyo (JP)
Appl. No. 17/416,788
Filed by HONDA MOTOR CO., LTD., Tokyo (JP)
PCT Filed Dec. 21, 2018, PCT No. PCT/JP2018/047373
§ 371(c)(1), (2) Date Jun. 21, 2021,
PCT Pub. No. WO2020/129257, PCT Pub. Date Jun. 25, 2020.
Prior Publication US 2022/0063368 A1, Mar. 3, 2022
Int. Cl. F25D 17/02 (2006.01); B60H 1/00 (2006.01); B60L 58/26 (2019.01)
CPC B60H 1/00278 (2013.01) [B60H 1/00885 (2013.01); B60L 58/26 (2019.02)] 9 Claims
OG exemplary drawing
 
1. A temperature adjustment circuit comprising:
a first temperature adjustment circuit that includes:
a first pump that is configured to supply a heat-transfer medium to a first cooling target and
a first heat exchanging part that transfers heat between the heat-transfer medium and an air-conditioning refrigerant;
a second temperature adjustment circuit that includes:
a second pump that is configured to supply the heat-transfer medium to a second cooling target and
a second heat exchanging part that transfers heat between the heat-transfer medium and outside air;
a first connection path that connects a first connection portion of the first temperature adjustment circuit and a first connection portion of the second temperature adjustment circuit;
a second connection path that connects a second connection portion of the first temperature adjustment circuit and a second connection portion of the second temperature adjustment circuit;
a three-way valve that is provided in the first connection portion of the second temperature adjustment circuit and is configured to switch between supply of the heat-transfer medium to the second connection portion of the second temperature adjustment circuit and supply of the heat-transfer medium to the first connection path;
a shut-off valve that is provided between the first connection portion of the first temperature adjustment circuit and the second connection portion of the first temperature adjustment circuit; and
a control device that is configured to control the three-way valve and the shut-off valve,
wherein the control device is configured to switch between
a circulation state where the shut-off valve is set to a valve-closed state and the three-way valve is controlled to supply the heat-transfer medium to the first connection path so that the heat-transfer medium is circulated through a connection circuit in which the first temperature adjustment circuit and the second temperature adjustment circuit are connected to each other and
a non-circulation state where the shut-off valve is set to a valve-open state and the three-way valve is controlled to supply the heat-transfer medium to the second connection portion of the second temperature adjustment circuit so that the heat-transfer medium is not circulated through the connection circuit.