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1. 发明专利

JP5333365B2 Air conditioner 有权
公开(公告)号：JP5333365B2
公开(公告)日：2013-11-06
申请号：JP2010154518
申请日：2010-07-07
申请人：ダイキン工業株式会社
发明人：明治小島
IPC分类号： F24F11/02
CPC分类号： F25B2313/005
摘要： PROBLEM TO BE SOLVED: To provide an air conditioner suppressing an interference of control over latent heat capacity with control over sensible heat capacity and achieving correct control over temperature and humidity. SOLUTION: This air conditioner 1 includes: a refrigerant circuit 100 connected with a compressor 110, an outdoor heat exchanger 120, an outdoor expansion valve 130, a first indoor expansion valve 140, and a first indoor heat exchanging section 150a; a bypass pipe 200 bypassing the outdoor heat exchanger 120 and outdoor expansion valve 130 and provided with a second indoor heat exchanging section 150b and a second indoor expansion valve 210 in the middle thereof; and a controller 300. The controller 300 performs dehumidification control for controlling the rotational speed of the compressor based on a target evaporation temperature which is set based on a difference between the humidity in an air-conditioned room and the target humidity and which is the target value of the evaporation temperature of a refrigerant passing through the first indoor heat exchanging section 150a, and performs temperature control for controlling the opening of each of the outdoor expansion valve and second indoor expansion valve based on a difference between temperature in the air-conditioned room and the target temperature. COPYRIGHT: (C)2012,JPO&INPIT

2. 发明专利

JP4497234B2 Air conditioning apparatus 有权
公开(公告)号：JP4497234B2
公开(公告)日：2010-07-07
申请号：JP2008194955
申请日：2008-07-29
申请人：ダイキン工業株式会社
发明人：明治小島
IPC分类号： F24F11/02 , F25B1/00
CPC分类号： F25B49/027 , F24F11/77 , F24F2140/12 , F24F2140/20 , F25B2313/005 , F25B2341/0662 , F25B2400/16 , F25B2600/021 , F25B2600/111 , F25B2600/21 , F25B2600/2513 , F25B2700/1931 , F25B2700/1933 , F25B2700/21151 , F25B2700/21152 , Y02B30/741 , Y02B30/743 , Y02B30/746
摘要： An air conditioning apparatus (1) comprises: a refrigerant circuit (10) that is configured as a result of a compressor (21), an outdoor heat exchanger (22), a first expansion valve (EV1), a second expansion valve (EV2), and an indoor heat exchanger (41) being sequentially connected; and an outdoor fan (26) that supplies air as a heat source to the outdoor heat exchanger (22), wherein the air flow rate of the outdoor fan (26) and the opening degree of the first expansion valve (EV1) are controlled such that high pressure (Ph) in a refrigeration cycle operation of the refrigerant circuit (10) becomes a target high pressure.

3. 发明专利

JP3882841B2 Air conditioner, heat source unit, and how to update the air conditioning apparatus 有权
公开(公告)号：JP3882841B2
公开(公告)日：2007-02-21
申请号：JP2005132023
申请日：2005-04-28
申请人：ダイキン工業株式会社
发明人：悟大倉 , 明治小島 , 慎也松岡 , 和秀水谷 , 哲朗高溝
IPC分类号： F25B47/00 , F25B43/00 , F25B45/00 , F25B49/02
CPC分类号： F25B43/003 , F25B13/00 , F25B47/00 , F25B2400/18

4. 发明专利

JP5310101B2 Air conditioning apparatus 有权
公开(公告)号：JP5310101B2
公开(公告)日：2013-10-09
申请号：JP2009049018
申请日：2009-03-03
申请人：ダイキン工業株式会社
发明人：明治小島
IPC分类号： F24F11/02 , F25B1/00 , F25B47/02
摘要： PROBLEM TO BE SOLVED: To smoothly continue defrosting operation and shorten time for the defrosting operation. SOLUTION: This air conditioner includes a refrigerant circuit (10) having two outdoor heat exchangers (17) interconnected in parallel. During the defrosting operation, in the refrigerant circuit (10), a refrigerant is circulated in the direction reverse to that during heating operation so as to defrost the two outdoor heat exchangers (17) simultaneously. During the defrosting operation, when defrosting of either one of the outdoor heat exchangers (17) is completed, an opening of an outdoor expansion valve (18) corresponding to the outdoor heat exchanger (17) is reduced. Then, when a suction superheat degree of a compressor (11) exceeds a predetermined value, shortage of refrigerant circulation amount in the refrigerant circuit (10) is determined, and the opening of the outdoor expansion valve (18) with the reduced opening is increased. After that, when the suction superheat degree of the compressor (11) is lowered to less than the predetermined value, it is determined that the refrigerant circulation amount is recovered, and the opening of the outdoor expansion valve (18) with the increased opening is reduced again. COPYRIGHT: (C)2010,JPO&INPIT

5. 发明专利

JP4910577B2 Reverse phase detection device, an air conditioning apparatus equipped therewith, and reverse-phase-detection method 有权
公开(公告)号：JP4910577B2
公开(公告)日：2012-04-04
申请号：JP2006239756
申请日：2006-09-05
申请人：ダイキン工業株式会社
发明人：正務原 , 明治小島
IPC分类号： F24F11/02
摘要： PROBLEM TO BE SOLVED: To detect negative phase connection of a motor connected to a three-phase alternating power source in an air conditioner while minimizing addition of electric circuit components such as a negative phase protection relay. SOLUTION: This negative phase detecting device comprises the motor and a negative phase determining means. The motor is connected with the three-phase alternating power source, and drives a motor-driven device as a part of component devices of the air conditioner. The negative phase determining means determines whether the motor is connected with the three-phase alternating power source in negative phase or not base on a refrigerant flowing in a refrigerant circuit of the air conditioner or operational state quantity of the component device. COPYRIGHT: (C)2008,JPO&INPIT

6. 发明专利

JP4730318B2 Refrigeration unit 有权
公开(公告)号：JP4730318B2
公开(公告)日：2011-07-20
申请号：JP2007024615
申请日：2007-02-02
申请人：ダイキン工業株式会社
发明人：明治小島
IPC分类号： F25B1/00

7. 发明专利

JP4389916B2 Control unit of the air conditioner 有权
公开(公告)号：JP4389916B2
公开(公告)日：2009-12-24
申请号：JP2006258063
申请日：2006-09-22
申请人：ダイキン工業株式会社
发明人：正務原 , 明治小島
IPC分类号： F25B1/00

8. 发明专利

JP3785893B2 Air conditioning apparatus 有权
公开(公告)号：JP3785893B2
公开(公告)日：2006-06-14
申请号：JP2000090133
申请日：2000-03-29
申请人：ダイキン工業株式会社
发明人：明治小島 , 弘幸松浦
IPC分类号： F24F11/02 , F25B47/02
摘要： PROBLEM TO BE SOLVED: To eliminate the need for a complicated electrical circuit and control for preventing defrosting operation from being performed simultaneously in outdoor units 20a, 20b and hence reduce the cost in the so-called outdoor multiple type air conditioner. SOLUTION: Defrosting controllers 51a, 51b are individually provided for controlling defrosting for each outdoor unit 20a, 20b, and a defrosting signal is transmitted between the defrosting controllers 51a, 51b each other to prevent the outdoor heat exchangers from performing defrosting simultaneously.

9. 发明专利

JP5446348B2 Air conditioning apparatus 有权
公开(公告)号：JP5446348B2
公开(公告)日：2014-03-19
申请号：JP2009064056
申请日：2009-03-17
申请人：ダイキン工業株式会社
发明人：明治小島
IPC分类号： F24F11/02
摘要： PROBLEM TO BE SOLVED: To detect the fracture of a fan belt in an air conditioning device including a blower fan to which the power of a fan motor is transmitted through the fan belt. SOLUTION: A physical quantity representing the state of a refrigerant flowing in a heat exchanger (37) is measured as a measurement value for determination. An abnormality determining section (55) determines the fracture of the fan belt (29) when a condition of determination that the measurement value for determination is out of an available normal range in a state that the blower fan (14) is driven by the fan motor (28) in a refrigerating cycle for more than a prescribed time is established in a state that the fan motor (28) is rotated in the refrigerating cycle. COPYRIGHT: (C)2010,JPO&INPIT

10. 发明专利

JP5205742B2 Control device 有权
公开(公告)号：JP5205742B2
公开(公告)日：2013-06-05
申请号：JP2006313591
申请日：2006-11-20
申请人：ダイキン工業株式会社
发明人：明治小島 , 正務原
IPC分类号： F24F11/02
CPC分类号： F25B2600/021 , Y02B30/741
摘要： PROBLEM TO BE SOLVED: To provide a control device of an air conditioner, preventing unnecessary breaker operation. SOLUTION: This control device 4 is a control device of the air conditioner 1 loaded with a variable displacement inverter compressor 11, and provided with a micro-computer 5. The micro-computer 4 controls the air conditioner 1 based upon the refrigerant state of a refrigerant circuit 10 including the inverter compressor 11. The micro-computer 5 computes an estimated value of a total consumption current in the air conditioner 1 in the case of raising the operational frequency in raising the operational frequency of the inverter compressor 11, and the estimated value and a preset total consumption current upper limit value are compared to determine permission or non-permission to raise the operational frequency. COPYRIGHT: (C)2008,JPO&INPIT

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