公开(公告)号：EP3650769A1

公开(公告)日：2020-05-13

申请号：EP17916825.7

申请日：2017-07-04

申请人： Mitsubishi Electric Corporation

发明人： YAMANAKA, Tatsuya ,  TAKATA, Shigeo

IPC分类号： F24F11/30 ,  F24F1/24 ,  F24F5/00

摘要： An air-conditioning apparatus includes a refrigerant circuit in which a compressor, a heat-source-side heat exchanger, a heat-source-side expansion device, and a circuit-circuit heat exchanger are connected via a refrigerant pipe and refrigerant circulates, and a heat medium circuit in which a pump, the circuit-circuit heat exchanger, a load-side expansion device, and a load-side heat exchanger are connected via a heat medium pipe and a heat medium circulates. The air-conditioning apparatus includes a radiator that is connected to the heat medium pipe and a control unit that is attached to the radiator. The circuit-circuit heat exchanger exchanges heat between the refrigerant circulating in the refrigerant circuit and the heat medium circulating in the heat medium circuit. The control unit is cooled via the radiator by the heat medium flowing in the heat medium pipe.

公开(公告)号：EP4142134A1

公开(公告)日：2023-03-01

申请号：EP20931798.1

申请日：2020-04-20

申请人： MITSUBISHI ELECTRIC CORPORATION

发明人： YAMAKAJI, Yusuke ,  SUGA, Ikuro ,  ICHIKI, Satoru ,  ARISAWA, Koichi ,  YAMANAKA, Tatsuya

IPC分类号： H02M3/155 ,  H02M3/28 ,  H02M1/44 ,  H02M7/12 ,  H02M7/48 ,  F24F11/88

摘要： A noise propagating to outside of a power conversion device is reduced. A power conversion device includes at least one external electrode (1 to 4), a switching element (6), a noise filter (5) connected between at least one external electrode (1, 2) and switching element (6), at least one first wire (100, 101) to connect at least one external electrode (1, 2) and noise filter (5), a second wire (103) to connect noise filter (5) and switching element (6), and a magnetic filter (7) attached to second wire (103). An attenuation characteristic A [dB] and an attenuation characteristic B [dB] satisfy a relationship of B