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1. 发明公开

EP4438976A1 REFRIGERATION CYCLE DEVICE 审中-公开
公开(公告)号：EP4438976A1
公开(公告)日：2024-10-02
申请号：EP24719037.4
申请日：2024-01-15
申请人： Daikin Industries, Ltd.
发明人： ITOU, Seisuke , ANDOU, Hiroki , AZUMA, Shota , MATSUOKA, Hiromune
IPC分类号： F25B1/00 , F25B45/00
摘要： Provided is a refrigeration cycle apparatus capable of easily suppressing solidification of a filled carbon dioxide refrigerant in a filling operation of filling a refrigerant while activating a compressor. The refrigeration cycle apparatus includes a refrigerant circuit, a heat source unit, a utilization unit, a detector, and a control unit. The refrigerant circuit includes a compressor, and a carbon dioxide refrigerant flows through the refrigerant circuit. The heat source unit accommodates the compressor. The utilization unit is connected to the heat source unit via a connecting pipe. The detector detects a pressure of the refrigerant in a low pressure flow path of the refrigerant circuit. The control unit executes a refrigerant filling operation of moving the refrigerant from a refrigerant storage container to the refrigerant circuit. In the refrigerant filling operation, the control unit controls the number of rotations of the compressor on the basis of a detection value of the detector.

2. 发明公开

EP2051029A1 COOLANT FILLING METHOD IN A REFRIGERATION DEVICE USING CARBON DIOXIDE AS COOLANT 审中-公开
标题翻译：爱尔兰KLHLMITTELFLLVERVERHHEN IN KINHLMITTEL VERWENDENDENKÜHLVORRICHTUNG
公开(公告)号：EP2051029A1
公开(公告)日：2009-04-22
申请号：EP07792147.6
申请日：2007-08-08
申请人： Daikin Industries, Ltd.
发明人： MATSUOKA, Hiromune , KURIHARA, Toshiyuki
IPC分类号： F25B45/00 , F25B1/00
CPC分类号： F25B45/00 , F25B9/008 , F25B2309/061 , F25B2345/001
摘要： The present invention provides a refrigerant charging method in a refrigeration system that uses carbon dioxide as a refrigerant, which refrigerant charging method can shorten the amount of time for charging the refrigeration system with the refrigerant and the amount of time until the refrigeration system becomes operable after being charged with the refrigerant. A refrigerant charging method in an air conditioner (1) that uses carbon dioxide as a refrigerant includes a first refrigerant charging step and a second refrigerant charging step. The first refrigerant charging step is a step of charging a refrigerant charging target portion including refrigerant communication pipes (6,7) with refrigerant in a gas state until the pressure of the refrigerant charging target portion rises to a predetermined pressure after the start of charging. The second refrigerant charging step is a step of charging the refrigerant charging target portion with refrigerant in a liquid state until the amount of refrigerant charging the refrigerant charging target portion becomes a predetermined amount after the first refrigerant charging step.
摘要翻译：本发明提供了一种使用二氧化碳作为制冷剂的制冷系统中的制冷剂填充方法，该制冷剂填充方法可以缩短制冷剂对制冷系统充电的时间量以及直到制冷系统变得可操作的时间量充满制冷剂。使用二氧化碳作为制冷剂的空调装置（1）中的制冷剂填充方法包括第一制冷剂填充步骤和第二制冷剂填充步骤。第一制冷剂填充步骤是将包含制冷剂连通配管（6,7）的制冷剂填充对象部分与制冷剂置于气体状态直到制冷剂填充目标部分的压力在开始充电之后上升到预定压力的步骤。第二制冷剂填充步骤是使制冷剂填充对象部分处于液态的制冷剂，直到第一制冷剂填充步骤之后的制冷剂填充目标部分的制冷剂量成为预定量。

3. 发明公开

EP3985329A1 REFRIGERANT CYCLE SYSTEM 审中-实审转让
公开(公告)号：EP3985329A1
公开(公告)日：2022-04-20
申请号：EP20822682.9
申请日：2020-06-11
申请人： Daikin Industries, Ltd.
发明人： YAMADA, Takuro , YOSHIMI, Atsushi , KUMAKURA, Eiji , IWATA, Ikuhiro , FURUSHO, Kazuhiro , KAGAWA, Mikio , MORIWAKI, Michio , MINAMIDA, Tomoatsu , MATSUOKA, Hiromune , MINAMI, Junya
IPC分类号： F25B7/00 , F25B13/00 , F25B29/00 , F25B1/00
摘要： In the case of using refrigerant having flammability or toxicity, a refrigerant filling amount allowed per room capacity may be limited. However, PTL 1 does not describe limitation of a refrigerant filling amount. A refrigerant cycle system (100) includes a first refrigerant circuit (1) and a second refrigerant circuit (2). The first refrigerant circuit (1) includes a first heat exchanger (11), a first compressor (12), and a first cascade heat exchanger (21). The second refrigerant circuit (2) includes the first cascade heat exchanger (21), a second compressor (22), and a second heat exchanger (31A, 31B). The first heat exchanger (11) and the first compressor (12) are accommodated in a first unit (10). The first cascade heat exchanger (21) and the second compressor (22) are accommodated in a second unit (20). The second heat exchanger (31A, 31B) is accommodated in a third unit (30). The first unit (10), the second unit (20), and the third unit (30) are disposed apart from each other.

4. 发明公开

EP3812662A1 AIR CONDITIONING SYSTEM 无效转让
公开(公告)号：EP3812662A1
公开(公告)日：2021-04-28
申请号：EP19824978.1
申请日：2019-06-17
申请人： Daikin Industries, Ltd.
发明人： YAMADA, Takuro , KUMAKURA, Eiji , IWATA, Ikuhiro , MATSUOKA, Hiromune , FUJIYOSHI, Ryusuke
IPC分类号： F24F11/36 , F24F1/0067 , F24F1/0068 , F24F11/89 , F25B1/00 , F25B7/00 , F25B49/02
摘要： An air-conditioning system (1) constitutes a multiple refrigeration cycle including a heat-source-side circuit (10) and a use-side circuit (30). The heat-source-side circuit (10) includes a heat-source-side compressor (21), an outdoor heat exchanger (23) that causes a heat-source-side refrigerant and outdoor air to exchange heat with each other, and a refrigerant-refrigerant heat exchanger (25) that causes the heat-source-side refrigerant and a use-side refrigerant to exchange heat with each other. The use-side circuit (30) includes a use-side compressor (31), the refrigerant-refrigerant heat exchanger (25), and a plurality of indoor heat exchangers (52) that cause the use-side refrigerant and indoor air to exchange heat with each other, the use-side circuit (30) having sealed therein carbon dioxide as the use-side refrigerant. An amount of the use-side refrigerant that is sealed in the use-side circuit (30) is 7.9 kg or less.

5. 发明授权

EP2040009B1 A method of performing a heating operation and a defrosting operation of an air conditioning system 有权
公开(公告)号：EP2040009B1
公开(公告)日：2019-03-13
申请号：EP07768206.0
申请日：2007-07-05
申请人： Daikin Industries, Ltd.
发明人： MATSUOKA, Hiromune , KURIHARA, Toshiyuki
IPC分类号： F25B1/00 , F25B47/02 , F25B13/00 , F25B9/00 , F24F3/00

6. 发明授权

EP1541938B1 REFRIGERATION EQUIPMENT 有权
标题翻译：冷却装置
公开(公告)号：EP1541938B1
公开(公告)日：2015-05-06
申请号：EP03741545.2
申请日：2003-07-22
申请人： DAIKIN INDUSTRIES, LTD.
发明人： MATSUOKA, Hiromune , MIZUTANI, Kazuhide
IPC分类号： F25B40/04 , F25B13/00
CPC分类号： F25B40/04 , F25B13/00 , F25B2313/006 , F25B2313/021 , F25B2313/023 , F25B2313/0233 , F25B2313/02521 , F25B2313/0272 , F25B2313/0313 , F25B2400/13 , F25B2400/16 , F25B2400/18 , F25B2600/2501 , F25B2600/2509 , F25B2700/2101

7. 发明公开

EP2056044A1 AIR CONDITIONER AND METHOD FOR CLEANING SAME 审中-公开
标题翻译： KLIMAANLAGE UND VERFAHREN ZU DEREN REINIGUNG
公开(公告)号：EP2056044A1
公开(公告)日：2009-05-06
申请号：EP07791908.2
申请日：2007-08-03
申请人： Daikin Industries, Ltd.
发明人： KURIHARA, Toshiyuki , MATSUOKA, Hiromune
IPC分类号： F25B43/00 , F25B1/00 , F25B45/00
CPC分类号： F25B45/00 , F25B9/008 , F25B13/00 , F25B43/00 , Y10T137/0419
摘要： To provide a method of cleaning an air conditioner which, when using carbon dioxide as a working refrigerant, reduces the quantity of remaining impurities without having to perform vacuuming. A method of cleaning an air conditioner (1) where carbon dioxide is utilized as a working refrigerant is disposed with three steps. In a charging step (S10), a refrigeration cycle is charged with carbon dioxide. In a venting step (S30), a charging target with which the refrigeration cycle is charged is vented after the charging step (S10). In a repeating step (S40), when the charging step (S10) and the venting step (S30) configure a unit operation, the unit operation is performed at least one time or more.
摘要翻译：提供一种清洁空气调节器的方法，当使用二氧化碳作为工作制冷剂时，不需要进行抽真空而减少剩余杂质的量。将二氧化碳用作工作制冷剂的空调机（1）的清洗方法分三步进行。在充电步骤（S10）中，对二氧化碳进行制冷循环。在通气步骤（S30）中，在充电步骤（S10）之后，排出充入制冷循环的充电对象。在重复步骤（S40）中，当充电步骤（S10）和排气步骤（S30）构成单元操作时，至少进行一次或更多次的单元操作。

8. 发明公开

EP2040009A1 AIR CONDITIONING SYSTEM 审中-公开
标题翻译：空调系统
公开(公告)号：EP2040009A1
公开(公告)日：2009-03-25
申请号：EP07768206.0
申请日：2007-07-05
申请人： Daikin Industries, Ltd.
发明人： MATSUOKA, Hiromune , KURIHARA, Toshiyuki
IPC分类号： F24F11/02 , F24F1/00 , F25B1/00 , F25B47/02
CPC分类号： F25B13/00 , F24F3/001 , F25B9/008 , F25B47/02 , F25B2309/061 , F25B2313/0231 , F25B2313/02321 , F25B2313/0234 , F25B2313/02342 , F25B2313/02344 , F25B2313/02741 , F25B2341/0662 , F25B2600/2513
摘要： An air conditioning system includes a refrigerant circuit (20) in which a compressor (21), an indoor radiant panel (23), a first expansion valve (24), a room air heat exchanger (25), a second expansion valve (26) and an outdoor air heat exchanger (27) are connected in this order and which operates in a refrigeration cycle by reversibly circulating refrigerant therethrough. During a defrosting operation, the first expansion valve (24) is controlled to reduce the refrigerant pressure so that in a cooling cycle the refrigerant releases heat in the outdoor air heat exchanger (27) and the room air heat exchanger (25) and evaporates in the indoor radiant panel (23). Thus, the air conditioning system concurrently provides the defrosting of the outdoor air heat exchanger (27) and the room heating of the room air heat exchanger (25).
摘要翻译：（21），室内辐射板（23），第一膨胀阀（24），室内空气热交换器（25），第二膨胀阀（26），制冷剂回路）和室外空气热交换器（27）依次连接，并且通过使制冷剂可逆地循环而在制冷循环中运行。在除霜运转时，通过控制第一膨胀阀24，降低制冷剂压力，在制冷循环中制冷剂在室外空气热交换器27和室内空气热交换器25中放热，室内辐射板（23）。因此，空调系统同时提供室外空气热交换器（27）的除霜和室内空气热交换器（25）的室内加热。

9. 发明公开

EP4450889A1 VENTILATION SYSTEM 审中-公开
公开(公告)号：EP4450889A1
公开(公告)日：2024-10-23
申请号：EP22907015.6
申请日：2022-10-21
申请人： Daikin Industries, Ltd.
发明人： MIYAZAKI, Takeru , YAMANOI, Yoshiki , IYOSHI, Yuta , SAEKI, Kumiko , MATSUOKA, Hiromune , KOMATSU, Akira , TAKAHASHI, Takashi , ODO, Tsunahiro , TSURUZONO, Shota
IPC分类号： F24F11/74 , F24F110/70 , F24F120/10 , F24F7/007 , F24F7/08
CPC分类号： Y02B30/70 , F24F2120/1020180101 , F24F7/007 , F24F7/08 , F24F2110/7020180101 , F24F11/74
摘要： The ventilation system 1 according to the present disclosure includes: a refrigerant circuit 60; an air supply path having an interior in which a first heat exchanger 12 and a first air supply fan 22A and a second air supply fan 22B are arranged; an exhaust air path having an interior in which a second heat exchanger 32 and an exhaust fan 42 are arranged; a first air supply detector 23A for detecting a first supply airflow AF1 blown out by the first air supply fan 22A; a second air supply detector 23B for detecting a second supply airflow AF2 blown out by the second air supply fan 22B; and a control unit CU. The control unit CU executes first air supply control to adjust the rotational speed of the first air supply fan 22A so that the first supply airflow AF 1 becomes a target value TV1, and second air supply control to adjust the rotational speed of the second air supply fan 22B so that the second supply airflow AF2 becomes a target value TV2.

10. 发明公开

EP3862656A1 REFRIGERATION CYCLE DEVICE 有权转让
公开(公告)号：EP3862656A1
公开(公告)日：2021-08-11
申请号：EP19869334.3
申请日：2019-09-30
申请人： DAIKIN INDUSTRIES, LTD.
发明人： IWATA, Ikuhiro , KUMAKURA, Eiji , FURUSHO, Kazuhiro , FUJIYOSHI, Ryusuke , MATSUOKA, Hiromune
IPC分类号： F25B7/00 , F25B1/00 , F25B1/10 , F25B13/00
摘要： A refrigeration cycle device that includes a main refrigerant circuit (20) and a sub-refrigerant circuit (80) cools or heats a main refrigerant that flows between a main heat-source-side heat exchanger (25) and a main usage-side heat exchanger (72a, 72b) by causing a sub-usage-side heat exchanger (85) to function as an evaporator or a radiator of a sub-refrigerant. A first main expansion mechanism (27) and a second main expansion mechanism (71a, 71b, 44) that decompress the main refrigerant are provided on an upstream side and a downstream side of the sub-usage-side heat exchanger (85) of the main refrigerant circuit (20).

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