公开(公告)号：US20190093931A1

公开(公告)日：2019-03-28

申请号：US16200889

申请日：2018-11-27

申请人： Hitachi-Johnson Controls Air Conditioning, Inc.

发明人： Hiroki KINOSHITA ,  Kazuhiro TSUCHIHASHI ,  Naoyuki FUSHIMI ,  Toshiki MOCHIZUKI ,  Shuntaro INOUE ,  Masayoshi MUROFUSHI ,  Yoshinori IWASHINA ,  Kazuhiko TANI

IPC分类号： F25B47/00 ,  F25B41/04 ,  F25B13/00

摘要： A refrigerant flow path switch arranged between an outdoor device and each of multiple indoor devices controls a refrigerant flow and is provided with a housing; a refrigerant flow path switching circuit having multiple refrigerant flow path switching circuits, wherein each refrigerant flow path switching circuit includes a high/low pressure gas pipe, a low pressure gas pipe, a high/low pressure electric valve provided at the high/low pressure gas pipe, and a low pressure electric valve provided at the low pressure gas pipe. A liquid pipe assembly is arranged in the housing and has multiple liquid pipes connected to the multiple indoor devices. A first divider plate is provided between adjacent ones of the refrigerant flow path switching circuits and divides an internal space of the housing such that a space divided by the first divider plate is in a substantially cubic shape, which is filled with a foaming agent.

公开(公告)号：US20200208850A1

公开(公告)日：2020-07-02

申请号：US16327031

申请日：2018-02-06

申请人： Hitachi-Johnson Controls Air Conditioning, Inc.

发明人： Hiroshi TSUNO ,  Naoyuki FUSHIMI

IPC分类号： F24F1/0014 ,  F24F13/08 ,  F24F13/10

摘要： An indoor unit of an air conditioner includes a suction port, multiple blow ports provided to surround the periphery of the suction port, and multiple louvers provided at the blow ports to adjust a blowing direction. When the indoor unit is stopped, each louver is rotated in the direction of closing the blow port, the angle of which is a fully-closed angle. A remote controller is configured to set action of each louver upon operation of the indoor unit. When the minimum angle among louver angles is taken as a first angle and the maximum angle is taken as a second angle, the louver angles of some of the multiple blow ports are, in heating operation, set to a third angle greater than the fully-closed angle and smaller than the first angle, and the louvers of the other blow ports are set to automatic swing or downward blowing.

公开(公告)号：US20200224889A1

公开(公告)日：2020-07-16

申请号：US16321599

申请日：2017-12-05

申请人： Hitachi-Johnson Controls Air Conditioning, Inc.

发明人： Toshiki MOCHIZUKI ,  Naoyuki FUSHIMI

IPC分类号： F24F1/0014 ,  F24F11/56 ,  F24F13/14 ,  F24F13/10

摘要： An indoor unit of an air conditioner includes multiple blow ports and multiple louvers each provided at the blow ports and configured to adjust a blowing direction. Each louver is, upon stop of the indoor unit, rotated in the direction of closing the blow port, the angle of the louver upon stop of the indoor unit being a fully-closed angle. When the minimum angle among louver angles settable by the remote controller is taken as a first angle and the maximum angle is taken as a second angle, the louver angles of a part of the multiple blow ports are, under a preset predetermined operation condition, set to a third angle greater than the fully-closed angle as the louver angle upon stop of the indoor unit and smaller than the first angle, and the louvers of the other blow ports perform louver operation settable from a remote controller.

公开(公告)号：US20200063983A1

公开(公告)日：2020-02-27

申请号：US16424754

申请日：2019-05-29

申请人： Hitachi-Johnson Controls Air Conditioning, Inc.

发明人： Taku IWASE ,  Tomohiko SATO ,  Yoko SATO ,  Kunihito KAWAMURA ,  Koutarou NOMURA ,  Naoyuki FUSHIMI ,  Shinji NAKAHATA

IPC分类号： F24F1/0047 ,  F04D29/70 ,  F24F13/20 ,  F24F13/30

摘要： Provided is an indoor unit of an air-conditioner including: an indoor unit body configured to be provided in a ceiling; a suction port attached to a lower surface of the indoor unit body; a panel including a blow port for blowing conditioned air into a room; and a louver provided at the blow port of the panel to change an air sending direction. The panel includes an outer frame provided outside the blow port and provided with a substantially horizontal flat portion, and a protruding portion provided on the flat portion of the outer frame and protruding vertically downward. A lower end of the protruding portion is positioned vertically above a lower end of the louver. A lower end of an inner flow path wall surface forming a flow path wall surface inside the blow port is positioned vertically below the lower end of the louver.

公开(公告)号：US20180195790A1

公开(公告)日：2018-07-12

申请号：US15740157

申请日：2015-07-08

申请人： Hitachi-Johnson Controls Air Conditioning, Inc.

发明人： Naoyuki FUSHIMI ,  Ryuta OHASHI

IPC分类号： F25D21/14 ,  F24F13/30 ,  B65D1/40 ,  F24F13/22

CPC分类号： F25D21/14 ,  B65D1/40 ,  F24F1/0007 ,  F24F1/0047 ,  F24F13/222 ,  F24F13/30 ,  F24F2013/221 ,  F24F2013/228

摘要： An indoor unit for an air conditioner includes: a blower fan that is arranged in a casing; a heat exchanger that encompasses all air flow directions from the blower fan; a drain pan that is arranged below the heat exchanger; and an antimicrobial unit that is installed on the drain pan and has an antimicrobial agent to sterilize drain water. At least a part of the antimicrobial unit is arranged directly below the heat exchanger. The indoor unit has the antimicrobial agent arranged on the drain pan while a cross-sectional area of an outlet passage is prevented from being reduced.

公开(公告)号：US20180017293A1

公开(公告)日：2018-01-18

申请号：US15618321

申请日：2017-06-09

申请人： Hitachi-Johnson Controls Air Conditioning, Inc.

发明人： Koji NAITO ,  Naoyuki FUSHIMI ,  Kazumoto URATA ,  Gen YASUDA ,  Kazunori FUKUDA

IPC分类号： F25B13/00 ,  F25B49/02

CPC分类号： F25B13/00 ,  F24F1/32 ,  F24F11/36 ,  F24F2221/54 ,  F25B49/02 ,  F25B2313/007 ,  F25B2313/0231 ,  F25B2313/0233 ,  F25B2313/02732 ,  F25B2313/02742 ,  F25B2500/222

摘要： A cooling/heating switching unit is provided that is capable of simply and reliably detecting leak of refrigerant. The switching unit includes: first and second fittings having a high/low-pressure-gas main pipe and a low-pressure-gas main pipe connected thereto, respectively, wherein the main pipes are linked to an outdoor unit; a third fitting having an indoor-unit connection pipe connected thereto, wherein the connection pipe is linked to indoor units; an expansion valve for high/low-pressure-gas pipe, an expansion valve for low-pressure-gas pipe, and expansion-valve driving sections that selectively connect the first or second fitting with the third fitting via a refrigerant pipe to control a flow direction of refrigerant; a housing that houses the refrigerant pipe; a heat insulating material that fills inside of the housing to insulate the refrigerant pipe arranged inside of the housing from heat; and a refrigerant leak detection sensor installed outside of the housing to detect leaked refrigerant.