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1. 发明专利

JP3858154B2 Air conditioning system 有权
公开(公告)号：JP3858154B2
公开(公告)日：2006-12-13
申请号：JP2003362679
申请日：2003-10-23
申请人：株式会社日立製作所
发明人：敬治佐藤 , 教之分校 , 浩一徳重 , 達也杉山 , 昌志渡辺
IPC分类号： F24F11/02
摘要： PROBLEM TO BE SOLVED: To easily lay a transmission line and to achieve reliable communication, by allowing an outdoor unit to communicate with an indoor unit even in an air-conditioning system in which no power lines are directly connected. SOLUTION: An air-conditioning system comprises the outdoor unit 1 for mounting a transmission line communication means 4 for transmitting/receiving transmission line signals via a transmission line 10; the indoor unit for mounting a power transmission communication means 6 for transmitting/receiving power line superposed signals via a power line 9; a first converter 7 for converting transmission line signals to radio signals; a second converter 8 for converting radio signals to power line superposed signals. The outdoor unit 1 and the first converter 7 transmit and receive signals via the transmission line 10, the indoor unit 2 and the second converter 8 transmit and receive signals via the power line 9, and the first converter 7 and the second converter 8 transmit and receive signals between the outdoor unit 1 and the indoor unit 2 by transmitting and receiving radio signals. COPYRIGHT: (C)2005,JPO&NCIPI

2. 发明专利

JP4129594B2 Air conditioning system 有权
公开(公告)号：JP4129594B2
公开(公告)日：2008-08-06
申请号：JP2003109709
申请日：2003-04-15
申请人：株式会社日立製作所
发明人：敬治佐藤 , 教之分校 , 康行小嶋 , 猛尾中 , 辰美山内 , 浩一徳重 , 登秋山 , 康一谷口
IPC分类号： F24F11/02 , F24F11/00
CPC分类号： F24F1/0003 , F24F11/30 , F24F11/54
摘要： An air conditioning system is arranged to use a power line for communication. The air conditioning system includes one or more indoor units, one or more outdoor units, and a system controller for controlling the indoor units or outdoor units and executes communications between the indoor units and the outdoor units as overlapping a signal on the power line for supplying electric power. The outdoor units are connected with the system controller through a leased communication line. The indoor unit provides a power line communication device being connected with the power line. The outdoor unit provides a leased communication device being connected with the leased communication line. A bridge is also provided for connecting the leased communication line and the power line. The control information is exchanged mutually between the indoor units, the outdoor units and the system controller through the power line.

3. 发明专利

JP3870280B2 Air conditioner and a power line communication system 有权
公开(公告)号：JP3870280B2
公开(公告)日：2007-01-17
申请号：JP2004007441
申请日：2004-01-15
申请人：株式会社日立製作所
发明人：伊藤　　誠 , 教之分校 , 康行小嶋 , 辰美山内 , 浩一徳重
IPC分类号： F24F11/02 , F24F11/00 , H04B3/54 , H04Q9/00
CPC分类号： H04B3/54 , F24F11/30 , F24F11/56 , H04B2203/5458
摘要： An air conditioner and a power line communication system high in reliability and free of malfunction facilitates the installation work such as the wiring. The air conditioner for conducting communication through a power line includes a bridge unit connected to at least an outdoor unit through a transmission line, and at least an indoor unit connected from the power line through a blocking filter. A side of the bridge unit far from the outdoor unit is connected between the blocking filter and the indoor unit. The bridge unit subjects a signal from the outdoor unit to spread spectrum modulation and transmits it by superposing the resulting signal on the power line. The superposed signal is received and demodulated by the indoor unit.

4. 发明专利

JP3517601B2 Ceiling type air conditioner 有权
公开(公告)号：JP3517601B2
公开(公告)日：2004-04-12
申请号：JP8307999
申请日：1999-03-26
申请人：株式会社日立空調Se , 株式会社日立製作所
发明人：創佐々木 , 孝佐野 , 浩一徳重 , 寿紀深沢 , 良樹畑
IPC分类号： F24F11/02 , F24F13/20 , F24F1/00
摘要： PROBLEM TO BE SOLVED: To obtain a ceiling recessed air conditioner facilitating to clean, to inspect, and to exchange filters and suction grills and adaptable to global environment protection. SOLUTION: In a ceiling recessed air conditioner provided with each of indoor units having each of suction grills 2 capable of lifting, a remote controller 3 for operating plural units of indoor units, means provided on the remote controller 3 and for selecting plural units from the indoor units, and means for controlling a lift of each of the suction grills 2 provided on each of the selected plural units of the indoor units at the same time are provided.

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