公开(公告)号：US20170370605A1

公开(公告)日：2017-12-28

申请号：US15536207

申请日：2016-03-25

申请人： Mitsubishi Electric Corporation

发明人： Hiroaki MAKINO ,  Kouji YAMAGUCHI ,  Tetsuya TAZAWA

IPC分类号： F24F11/00 ,  F24F11/02 ,  F24F1/00 ,  F24F13/20

CPC分类号： F24F11/77 ,  F24F1/0007 ,  F24F11/30 ,  F24F11/36 ,  F24F11/89 ,  F24F13/20 ,  F24F2001/0081 ,  F24F2110/50 ,  F24F2140/20

摘要： When a controller determines that a leakage of refrigerant occurs, the controller executes a control of rotating an air-sending fan at high rotation speed. After the control, the controller executes a control of stopping rotation of the air-sending fan or reducing a rotation speed of the air-sending fan in accordance with a result of detection by a first refrigerant sensor provided in a lower portion of a heat exchanger chamber. Thus, the air-sending fan is prevented from continuing the rotation at high rotation speed. Therefore, an indoor unit for an air-conditioning apparatus is excellent in safety and is capable of avoiding feeling of discomfort of a user due to the high-speed rotation of the air-sending fan.

公开(公告)号：US20170343258A1

公开(公告)日：2017-11-30

申请号：US15537013

申请日：2015-03-26

申请人： Mitsubishi Electric Corporation

发明人： Kouji YAMAGUCHI ,  Hiroaki MAKINO ,  Tetsuya TAZAWA

IPC分类号： F25B49/02 ,  F24F13/20 ,  F24F11/00 ,  F24F13/22 ,  F24F1/00

摘要： In an indoor unit of an air-conditioning apparatus according to the present invention, an air inlet for room air is provided at a position lower than a height position of a drain pan. A partition plate is provided to partition a space below a height position of the drain pan in a housing. A pipe connecting portion connected to a refrigerant pipe of an outdoor unit is provided in one part of the partitioned space and a heat exchanger and a fan are placed in the other part of the partitioned space. At least one communicating path is formed in the partition plate to communicate the two parts of the partitioned space with each other.

公开(公告)号：US20170198936A1

公开(公告)日：2017-07-13

申请号：US15315087

申请日：2015-06-17

申请人： Mitsubishi Electric Corporation

发明人： Kouji YAMAGUCHI

IPC分类号： F24F11/00 ,  F24F1/00

CPC分类号： F24F11/30 ,  F24F1/0007 ,  F24F11/36 ,  F24F11/52 ,  F24F11/74 ,  F24F11/77 ,  F24F2001/004 ,  F24F2110/00 ,  F25B49/02 ,  F25B2500/222

摘要： An indoor unit of an air-conditioning apparatus includes a casing including an air inlet, an air outlet, and an air passage communicating between the air inlet and the air outlet, the air inlet being located lower than the air outlet, an indoor heat exchanger disposed inside the casing, an indoor fan disposed inside the casing and configured to supply air to the indoor heat exchanger, a refrigerant leakage sensor disposed in the air passage between the air inlet and the air outlet at a position lower than the indoor heat exchanger and the air outlet, and configured to detect refrigerant leakage, and a controller configured to determine whether refrigerant leakage occurs according to a detection result of the refrigerant leakage sensor.