US 11,913,694 B2
Heat pump system
Kazuki Hayashida, Tokyo (JP); Yasushi Okoshi, Tokyo (JP); Takuya Ito, Tokyo (JP); Yoshio Yamano, Tokyo (JP); Kimitaka Kadowaki, Tokyo (JP); and Takahiro Akizuki, Tokyo (JP)
Assigned to Mitsubishi Electric Corporation, Tokyo (JP)
Appl. No. 16/966,090
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Mar. 7, 2018, PCT No. PCT/JP2018/008716
§ 371(c)(1), (2) Date Jul. 30, 2020,
PCT Pub. No. WO2019/171485, PCT Pub. Date Sep. 12, 2019.
Prior Publication US 2021/0033324 A1, Feb. 4, 2021
Int. Cl. F25B 47/02 (2006.01); F24F 11/74 (2018.01); F24F 11/42 (2018.01); F25B 13/00 (2006.01); F25B 49/02 (2006.01); F24F 110/10 (2018.01)
CPC F25B 47/02 (2013.01) [F24F 11/42 (2018.01); F24F 11/74 (2018.01); F25B 13/00 (2013.01); F25B 49/02 (2013.01); F24F 2110/10 (2018.01); F25B 2700/11 (2013.01); F25B 2700/2103 (2013.01); F25B 2700/2104 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A heat pump system, comprising:
a refrigerant circuit in which a compressor, a refrigerant flow path included in a heat medium heat exchanger, an expansion valve, and a heat source side heat exchanger are connected, the heat medium heat exchanger including the refrigerant flow path and a heat medium flow path;
a heat medium feed path connected to the heat medium flow path included in the heat medium heat exchanger;
an indoor unit connected to the heat medium feed path and including an indoor fan, the indoor unit being configured to condition air inside a room;
a room temperature sensor configured to detect an indoor temperature in the room;
a heat medium temperature sensor configured to detect a temperature of a heat medium that flows into the indoor unit; and
a controller configured to control a flow rate of air sent from the indoor fan by using a set temperature in the room, the indoor temperature detected by the room temperature sensor, and the temperature detected by the heat medium temperature sensor in such a manner that the indoor temperature detected by the room temperature sensor is not deviated from the set temperature.