专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP3404344A1 REFRIGERATION DEVICE 有权
公开(公告)号：EP3404344A1
公开(公告)日：2018-11-21
申请号：EP17738440.1
申请日：2017-01-11
申请人： Daikin Industries, Ltd.
发明人： OHURA, Ryuuta , MINAMI, Junya
IPC分类号： F25B47/02 , F24F11/02
CPC分类号： F25B47/02 , F24F11/89 , F25B31/004 , F25B47/025 , F25B49/02 , F25B2313/0253 , F25B2347/021
摘要： Provided is a refrigeration apparatus in which a decrease in a temperature of an indoor heat exchanger can be suppressed as much as possible while depletion of refrigerator oil in a compressor is also suppressed. An air-conditioning apparatus (100) configured from a parallel connection of a plurality of outdoor units (10, 20) to an indoor unit (61, 65), wherein when a predetermined defrosting condition has been fulfilled, a control unit (7) selectively executes a reverse-cycle defrost mode when a predetermined outflow condition pertaining to an outflow integrated quantity of refrigerator oil has also been fulfilled, and selectively executes an alternating defrost mode, in which the outdoor unit (10, 20) that is to be defrosted is changed in sequence, when the predetermined outflow condition has not been fulfilled.

2. 发明公开

EP3396275A1 AIR-CONDITIONING APPARATUS 有权
公开(公告)号：EP3396275A1
公开(公告)日：2018-10-31
申请号：EP16878234.0
申请日：2016-11-21
申请人： Daikin Industries, Ltd.
发明人： OHURA, Ryuuta , MINAMI, Junya
IPC分类号： F25B45/00 , F25B13/00
摘要： In a case where the total volume of plural indoor heat exchangers (52a, 52b) is smaller than the volume of an outdoor heat exchanger (24), a control component (8) performs a heating refrigerant charging operation until a heating refrigerant charging completion condition is met, and thereafter performs a cooling refrigerant charging operation until a refrigerant charging completion condition where a refrigerant circuit (10) is charged with a prescribed quantity of refrigerant is met.

3. 发明授权

EP3150941B1 REFRIGERATION DEVICE 有权
公开(公告)号：EP3150941B1
公开(公告)日：2018-07-04
申请号：EP15800460.6
申请日：2015-05-26
申请人： Daikin Industries, Ltd.
发明人： MINAMI, Junya , OKA, Masahiro
IPC分类号： F25B47/02 , F25B1/00 , F25B5/02 , F25B6/02 , F25B13/00 , F25B29/00 , F25B49/02
CPC分类号： F25B47/025 , F25B13/00 , F25B47/02 , F25B47/022 , F25B49/02 , F25B2313/005 , F25B2313/0231 , F25B2313/0233 , F25B2313/0253 , F25B2313/0294 , F25B2347/02 , F25B2600/2513 , F25B2600/2515
摘要： A first heat-source-side flow rate adjusting valve (26), an opening degree of which is adjustable, is connected to a liquid side of an upper-side first heat-source-side heat exchanger (24), and a second heat-source-side flow rate adjusting valve (27), an opening degree of which is adjustable, is connected to a liquid side of a lower-side second heat-source-side heat exchanger (25). In a defrost operation for defrosting the first and second heat-source-side heat exchangers (24, 25), the opening degrees of the first and second heat-source-side flow rate adjusting valves (26, 27) are controlled so as to achieve a defrost flow rate ratio, which is a flow rate ratio at which more refrigerant flows to the second heat-source-side heat exchanger (25) than during an air-cooling operation.

4. 发明授权

EP3101368B1 REFRIGERATION DEVICE 有权
公开(公告)号：EP3101368B1
公开(公告)日：2018-05-02
申请号：EP15742796.4
申请日：2015-01-29
申请人： Daikin Industries, Ltd.
发明人： MINAMI, Junya , OKA, Masahiro , SUSAKI, Mari
IPC分类号： F25B5/02 , F24F11/02 , F25B1/00 , F25B49/02 , F25B13/00
CPC分类号： F25B5/02 , F25B13/00 , F25B49/02 , F25B49/022 , F25B2313/007 , F25B2313/0233 , F25B2313/0253 , F25B2313/027 , F25B2400/13 , F25B2600/2513 , F25B2700/1933 , F25B2700/21152 , F25B2700/2117 , F25B2700/21174 , F25B2700/21175
摘要： Provided is a heat source unit capable of demonstrating sufficient capability by stable regulation of the valve opening of motor-operated valves provided in corresponding fashion to each of a plurality of heat exchangers mutually connected in parallel. A first heat exchanger (24) and a second heat exchanger (25) are mutually connected in parallel, and a first heat-source-side flow-rate-regulating valve (26) and a second heat-source-side flow-rate-regulating valve (27) for regulating flow rate are provided on an upstream side when each function as an evaporator. A heat-source-side controller (20) specifies a total valve opening of the first heat-source-side flow-rate-regulating valve (26) and the second heat-source-side flow-rate-regulating valve (27) on the basis of the discharge refrigerant temperature of the compressor (21), and a relationship between the valve opening of the first heat-source-side flow-rate-regulating valve (26) and the valve opening of the second heat-source-side flow-rate-regulating valve (27) is regulated on the basis of the temperature of refrigerant flowing from the first heat-source-side flow-rate-regulating valve (26) toward the first heat exchanger (24), and the temperature of refrigerant flowing from the second heat-source-side flow-rate-regulating valve (27) toward the second heat exchanger (25).

5. 发明公开

EP4400778A1 ABNORMALITY DIAGNOSIS SYSTEM, AIR CONDITIONER, AND AIR-CONDITIONING SYSTEM 审中-实审
公开(公告)号：EP4400778A1
公开(公告)日：2024-07-17
申请号：EP22867028.7
申请日：2022-06-24
申请人： Daikin Industries, Ltd.
发明人： OURA, Ryuta , MINAMI, Junya
IPC分类号： F24F11/32 , F24F11/38 , F24F11/49 , F24F11/54
CPC分类号： F24F11/38 , F24F11/49 , F24F11/32 , F24F11/54
摘要： The invention provides an abnormality diagnostic system including a processing unit (71) configured to acquire operation data of an air conditioner (11) and determine occurrence of abnormality and occurrence of an abnormality symptom in the air conditioner (11), a storage unit (72) configured to store abnormality information including content of the abnormality and information on occurred time of the abnormality, and symptom information including content of the symptom and information on occurred time of the symptom, and an output unit (74) configured to output the abnormality information and the symptom information stored in the storage unit (72).

6. 发明公开

EP4343216A1 REFRIGERANT LEAK MANAGEMENT SYSTEM 审中-实审
公开(公告)号：EP4343216A1
公开(公告)日：2024-03-27
申请号：EP22804709.8
申请日：2022-05-18
申请人： Daikin Industries, Ltd.
发明人： MINAMI, Junya , HORI, Yasushi , MATSUOKA, Shinya
IPC分类号： F24F11/36 , F25B49/02
摘要： In a case where a refrigeration cycle device is in a non-operating state for a long term, it is difficult to confirm the presence/absence of refrigerant leakage. A refrigerant leakage management system (1) includes a timer (20) and a control unit (100). The timer (20) counts a non-operating period of a refrigeration cycle device (10). The control unit (100) determines whether or not the non-operating period of the refrigeration cycle device (10) exceeds a predetermined first period. Upon determining that the non-operating period of the refrigeration cycle device (10) exceeds the first period, the control unit (100) brings the refrigeration cycle device (10) into operation or notifies an administrator of the refrigeration cycle device (10).

7. 发明公开

EP4067776A1 AIR CONDITIONING SYSTEM 无效转让
公开(公告)号：EP4067776A1
公开(公告)日：2022-10-05
申请号：EP20892899.4
申请日：2020-11-25
申请人： Daikin Industries, Ltd.
发明人： MINAMI, Junya
IPC分类号： F25B41/24 , F25B49/02 , F24F11/36
摘要： An air conditioning system (100) includes a refrigerant circuit (10), a heat exchanger (30a, 30b, 30c), a shutoff valve (70), and a refrigerant leakage sensor (50a, 50b, 50c). The refrigerant circuit includes a first part (11a, 11b, 11c) and a second part (12). The heat exchanger is provided in the first part and exchanges heat between a refrigerant and air in an air conditioning target space. The shutoff valve is provided in the refrigerant circuit and shuts off communication between the first part and the second part. The refrigerant leakage sensor detects that refrigerant concentration is within a first range and detects the refrigerant leaked from the first part. The shutoff valve is placed to set the refrigerant concentration in the air conditioning target space within a second range larger than the first range, when it is assumed that all the refrigerant present in the first part has leaked to the air conditioning target space.

8. 发明授权

EP3252396B1 AIR CONDITIONING DEVICE 有权
公开(公告)号：EP3252396B1
公开(公告)日：2020-03-25
申请号：EP15879836.3
申请日：2015-12-17
申请人： Daikin Industries, Ltd.
发明人： OHURA, Ryuuta , OKA, Yuusuke , MINAMI, Junya
IPC分类号： F25B1/00 , F25B13/00 , F25B31/00 , F25B49/02

9. 发明公开

EP4343235A1 REFRIGERANT LEAKAGE DETECTION SYSTEM 审中-实审
公开(公告)号：EP4343235A1
公开(公告)日：2024-03-27
申请号：EP22804650.4
申请日：2022-05-16
申请人： Daikin Industries, Ltd.
发明人： MINAMI, Junya
IPC分类号： F25B49/02 , F24F11/36 , F24F11/49
摘要： If refrigerant leakage is detected by only one method, the detection accuracy is not sufficient. A refrigerant leakage detection system (1) is a system for a refrigeration cycle device (100) having a refrigerant circuit (11). The refrigerant leakage detection system (1) includes a first control unit (10), a second control unit (20), and a third control unit (30). The first control unit (10) uses a first method to determine the presence or absence of refrigerant leakage from the refrigerant circuit (11). The second control unit (20) uses a second method different from the first method to determine the presence or absence of refrigerant leakage from the refrigerant circuit (11). The third control unit (30) determines the presence or absence of refrigerant leakage from the refrigerant circuit (11) on the basis of the determination result of the first control unit (10) and the determination result of the second control unit (20). The third control unit (30) determines that there is a refrigerant leakage in the refrigerant circuit (11) if the first control unit (10) determines that there is a refrigerant leakage from the refrigerant circuit (11) and the second control unit (20) determines that there is a refrigerant leakage from the refrigerant circuit (11).

10. 发明授权

EP3396275B1 AIR-CONDITIONING APPARATUS 有权
公开(公告)号：EP3396275B1
公开(公告)日：2020-03-18
申请号：EP16878234.0
申请日：2016-11-21
申请人： Daikin Industries, Ltd.
发明人： OHURA, Ryuuta , MINAMI, Junya
IPC分类号： F25B45/00 , F25B13/00

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式