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21. 发明专利

JP4826266B2 Air conditioning apparatus 有权
公开(公告)号：JP4826266B2
公开(公告)日：2011-11-30
申请号：JP2006018735
申请日：2006-01-27
申请人：ダイキン工業株式会社
发明人：伸一笠原
IPC分类号： F25B49/02 , F25B45/00

22. 发明专利

JP4811204B2 Refrigeration unit 有权
公开(公告)号：JP4811204B2
公开(公告)日：2011-11-09
申请号：JP2006246154
申请日：2006-09-11
申请人：ダイキン工業株式会社
发明人：利行栗原 , 伸一笠原
IPC分类号： F25B1/00 , F25B43/00
CPC分类号： F25B9/008 , F25B5/02 , F25B13/00 , F25B2309/061 , F25B2313/02741 , F25B2341/063 , F25B2341/0662 , F25B2600/17 , F25B2600/2513 , F25B2700/1931 , F25B2700/2102

23. 发明专利

JP4797727B2 Refrigeration unit 有权
公开(公告)号：JP4797727B2
公开(公告)日：2011-10-19
申请号：JP2006078157
申请日：2006-03-22
申请人：ダイキン工業株式会社
发明人：貴弘山口 , 伸一笠原
IPC分类号： F25B6/02 , F24F11/02 , F25B1/00
CPC分类号： F25B13/00 , F25B9/008 , F25B2309/061 , F25B2313/02323 , F25B2313/02741 , F25B2313/0314 , F25B2500/24 , F25B2600/2513 , F25B2700/2104
摘要： A refrigerant circuit (10) operates in a refrigeration cycle in which the pressure of refrigerant discharged from a compressor (22) is at or above the critical pressure. In performing an operation in which a first indoor heat exchanger (33a) performs a heating operation and, concurrently, a second indoor heat exchanger is made inactive, an indoor expansion valve (34b) associated with the inactive indoor heat exchanger (33b) is fully closed.

24. 发明专利

JP4411758B2 Air conditioning apparatus 有权
公开(公告)号：JP4411758B2
公开(公告)日：2010-02-10
申请号：JP2000256819
申请日：2000-08-28
申请人：ダイキン工業株式会社
发明人：博渕上 , 伸一笠原
IPC分类号： F24F11/02 , F25B1/00
CPC分类号： F25B2313/005
摘要： PROBLEM TO BE SOLVED: To provide an air conditioning apparatus in which it deals properly with rapid external turbulence without relying on protective control. SOLUTION: In an air conditioning apparatus wherein air conditioning control is performed on the basis of a dynamical model of a refrigerant circuit, a controller (30) executes an interrupt processing for an ordinary interval control upon occurrence of the external turbulence.

25. 发明专利

JP4169057B2 Air conditioning apparatus 有权
公开(公告)号：JP4169057B2
公开(公告)日：2008-10-22
申请号：JP2006200487
申请日：2006-07-24
申请人：ダイキン工業株式会社
发明人：学吉見 , 伸一笠原 , 忠史西村
IPC分类号： F25B49/02
CPC分类号： F25B49/005 , F25B2500/16 , F25B2500/19

26. 发明专利

JP4164889B2 Operation control unit of the air conditioner 失效
公开(公告)号：JP4164889B2
公开(公告)日：2008-10-15
申请号：JP32786397
申请日：1997-11-28
申请人：ダイキン工業株式会社
发明人：真一坂本 , 伸一笠原 , 克己鉾谷
IPC分类号： F24F11/02 , F25B1/00
摘要： PROBLEM TO BE SOLVED: To prevent abnormal delivery temperature rise of a compressor while decreasing the number of sensors. SOLUTION: A multi-variable controller 53 receives a delivery temperature difference ΔT2 calculated at a first difference calculating section 55, and a refrigerant temperature difference ΔTn (ΔTe, ΔTc) calculated at a second difference calculating section 56. Furthermore, the multi-variable controller 53 derives the control amounts ΔHz, ΔEv of the compressor capacity and the opening of a motor expansion valve based on a dynamic model of a refrigerant circuit 12 receiving compressor capacity and the opening of a motor expansion valve the control inputs and delivering the delivery temperature T2 and the refrigerant temperature Tn as control outputs. A frequency command signal and an opening command signal are then delivered, respectively, to the compressor and the motor expansion valve using compressor capacity and the opening of the motor expansion valve as two outputs.

27. 发明专利

JP4120676B2 Air conditioning apparatus 有权
公开(公告)号：JP4120676B2
公开(公告)日：2008-07-16
申请号：JP2005363736
申请日：2005-12-16
申请人：ダイキン工業株式会社
发明人：伸一笠原
IPC分类号： F25B49/02 , F24F11/02 , F24F11/047 , F25B1/00
CPC分类号： F25B49/005 , F25B13/00 , F25B2313/0233 , F25B2313/02741 , F25B2400/13
摘要： An air conditioner is provided in which the labor of inputting information on a utilization unit before operating a separate type air conditioner is reduced, and at the same time, the adequacy of the refrigerant quantity in a refrigerant circuit can be judged with high accuracy. An air conditioner (1) includes a refrigerant circuit (10) configured by the interconnection of a heat source unit (2) and a utilization unit (4, 5), a transmission line (8a) that exchanges a signal between the heat source unit (2) and the utilization unit (4, 5), information obtaining means, operation controlling means capable of performing a refrigerant quantity judging operation, refrigerant quantity judging means, and condition setting means. The information obtaining means obtains information on the utilization unit (4, 5) connected to the heat source unit (2) via the transmission line (8a). The refrigerant quantity judging means judges the adequacy of the refrigerant quantity in the refrigerant circuit (10) by using the operation state quantity of constituent equipment or refrigerant flowing in the refrigerant circuit (10) in the refrigerant quantity judging operation. The condition setting means sets a condition for the refrigerant quantity judging operation according to the information on the utilization unit (4, 5) obtained by the information obtaining means.

28. 发明专利

JP4023249B2 Compressor internal state estimating device and an air conditioner 有权
公开(公告)号：JP4023249B2
公开(公告)日：2007-12-19
申请号：JP2002216025
申请日：2002-07-25
申请人：ダイキン工業株式会社
发明人：敏行前田 , 清嗣小泉 , 貴弘山口 , 武史桧皮 , 茂伸泉 , 伸一笠原
IPC分类号： F04B49/10 , F25B49/02 , F04B49/02 , F04B49/06 , F24F11/02 , F25B1/04 , F25B13/00 , F25B49/00 , H02P6/16 , H02P21/00 , H02P27/04
CPC分类号： F04B49/10 , F04B49/065 , F04B2203/0201 , F04B2203/0202 , F04C2270/80 , F04C2270/86 , F25B1/04 , F25B13/00 , F25B49/005 , F25B49/025 , F25B2500/16 , F25B2500/19 , F25B2600/021 , F25B2700/151 , F25B2700/2116 , F25B2700/2117 , H02P21/13 , H02P29/02 , H02P29/40 , Y02B30/741
摘要： An instantaneous current and instantaneous voltage of a three-phase coil (10) of a brushless DC motor (6) are detected, and the internal condition of a compressor (1) is predicted from these detection values. The prediction about the internal condition of the compressor (1) is made in such a way that motor driving torque which is a parameter of a motor model is identified and poor lubrication, liquid compression or the like is predicted from this identified motor driving torque. This enables it to make, in real time, a failure forecast, failure diagnosis etc. on the compressor (1).

29. 发明专利

JP5422899B2 Air conditioning apparatus 有权
公开(公告)号：JP5422899B2
公开(公告)日：2014-02-19
申请号：JP2008050893
申请日：2008-02-29
申请人：ダイキン工業株式会社
发明人：忠史西村 , 伸一笠原 , 貴弘山口
IPC分类号： F25B49/02 , F24F11/02 , F25B1/00
CPC分类号： F25B2700/04
摘要： PROBLEM TO BE SOLVED: To provide an air conditioner and a refrigerant amount determining method capable of determining the amount of a refrigerant in a heat exchanger. SOLUTION: A refrigerant circuit 10 has a compressor 21, an outdoor heat exchanger 23 functioned as a condenser, indoor expansion valves 41, 51, indoor heat exchangers 42, 52 functioned as evaporators, indoor unit connection pipes 4b, 5b, a liquid refrigerant communication pipe 6, a gas refrigerant communication pipe 7 and an outdoor unit connection pipe 8. A liquid level detection sensor 39 detects a height of a liquid level of a liquid refrigerant existing in the outdoor heat exchanger 23. COPYRIGHT: (C)2009,JPO&INPIT

30. 发明专利

JP5332093B2 Refrigeration unit 有权
公开(公告)号：JP5332093B2
公开(公告)日：2013-11-06
申请号：JP2006246153
申请日：2006-09-11
申请人：ダイキン工業株式会社
发明人：伸一笠原 , 利行栗原
IPC分类号： F25B1/00 , F25B43/00
CPC分类号： F25B9/008 , F25B5/02 , F25B13/00 , F25B2309/061 , F25B2313/02741 , F25B2341/063 , F25B2341/0662 , F25B2600/17 , F25B2600/2513 , F25B2700/191 , F25B2700/1931 , F25B2700/2102
摘要： An object of this invention is to enable the refrigerant level in a liquid receiver to be stably controlled even when the high-pressure-side refrigerant is in a subcritical state in a refrigeration device that comprises a refrigerant circuit in which a compressor, a radiator, a first expansion valve, a liquid receiver, a second expansion valve, and an evaporator are connected in sequence. The refrigeration device (1, 101) of this invention is provided with a compression mechanism (11), a radiator (13), a first expansion mechanism (15), a liquid receiver (16), a second expansion mechanism (17, 33a, 33b), an evaporator (31, 31a, 31b) and a control unit (23). The control unit minimizes the degree of pressure reduction by the first expansion mechanism when the refrigerant that flows from the refrigerant discharge side of the compression mechanism to the refrigerant inflow side of the first expansion mechanism has reached a subcritical state.

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