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1. 发明授权

EP2068101B1 AIR CONDITIONER 有权
公开(公告)号：EP2068101B1
公开(公告)日：2018-10-10
申请号：EP07806191.8
申请日：2007-08-29
申请人： Daikin Industries, Ltd.
发明人： NISHIMURA, Tadafumi , YAMAGUCHI, Takahiro
IPC分类号： F25B49/02 , F25B1/00
CPC分类号： F25B13/00 , F25B45/00 , F25B49/005 , F25B2313/005 , F25B2313/006 , F25B2313/007 , F25B2313/0233 , F25B2313/0253 , F25B2313/02731 , F25B2313/02741 , F25B2313/0315 , F25B2400/075 , F25B2400/13 , F25B2600/2509 , F25B2700/04 , F25B2700/1931 , F25B2700/1933 , F25B2700/2101 , F25B2700/2104 , F25B2700/21151 , F25B2700/21152 , F25B2700/21163
摘要： An air conditioner is provided which is capable of simplifying conditions required for judging whether or not the amount of refrigerant is adequate. A refrigerant circuit (10) performs a cooling operation in which an outdoor heat exchanger (23) functions as a condenser of the refrigerant compressed in a compressor (21) and an indoor heat exchanger (42, 52) functions as an evaporator of the refrigerant condensed in the outdoor heat exchanger (23). Further, an outdoor expansion valve (38) is disposed at a position that is at once downstream of the outdoor heat exchanger (23) and upstream of a liquid refrigerant communication pipe (6) in the refrigerant flow direction in the refrigerant circuit (10) in the cooling operation, and shuts off the refrigerant flow. A refrigerant detection unit (39) is disposed upstream of the outdoor expansion valve (38) and detects the amount or the amount-related value of refrigerant accumulated upstream of the outdoor expansion valve (38).

2. 发明授权

EP2144018B1 REFRIGERATION DEVICE 有权
公开(公告)号：EP2144018B1
公开(公告)日：2018-09-12
申请号：EP08703279.3
申请日：2008-01-16
申请人： Daikin Industries, Ltd.
发明人： KAWANO, Satoshi , MATSUOKA, Shinya
IPC分类号： F25B1/00 , F25B6/02 , F25B13/00 , F25B39/00 , F25B49/02
CPC分类号： F25B41/062 , F25B13/00 , F25B49/027 , F25B2313/005 , F25B2313/0233 , F25B2313/02741 , F25B2341/0662 , F25B2500/01 , F25B2500/19 , F25B2600/19 , F25B2600/21 , F25B2600/2513 , F25B2700/04
摘要： For cooling operation, a refrigeration apparatus (20) includes a heat-source-side valve opening control means (53) for controlling a degree of opening of a heat-source-side expansion valve (36) so that pressure of a refrigerant flowing into the utilization-side expansion valve (51) in the cooling operation becomes equal to or lower than a predetermined reference pressure value. For heating operation, the refrigeration apparatus (20) includes a utilization-side valve opening control means (38, 54) for performing, when a low-quantity utilization unit (61) in which a quantity of the refrigerant falls below a quantity of the refrigerant required for delivering capacity of the utilization unit (61) is found among a plurality of the utilization units (61) in the heating operation, valve opening reducing operation of reducing a degree of opening of the utilization-side expansion valve (51) of the utilization unit (61) except for the low-quantity utilization unit (61).

3. 发明授权

EP2236960B1 AIR CONDITIONER AND METHOD OF DETERMINING AMOUNT OF REFRIGERANT 有权
公开(公告)号：EP2236960B1
公开(公告)日：2018-07-18
申请号：EP08867992.3
申请日：2008-12-24
申请人： Daikin Industries, Ltd.
发明人： NISHIMURA, Tadafumi
IPC分类号： F25B49/02 , F25B1/00
CPC分类号： F25B49/005 , F25B13/00 , F25B2313/005 , F25B2313/02741 , F25B2400/13 , F25B2400/16 , F25B2600/2519 , F25B2700/04 , F25B2700/2108
摘要： An air conditioning apparatus (1) is equipped with: a liquid-side stop valve (26) that is placed on the downstream side of a receiver (24) and on the upstream side of a liquid refrigerant connection pipe (6) when performing cooling operation and is capable of shutting off passage of refrigerant; an outdoor expansion valve (38) that is placed on the downstream side of an outdoor heat exchanger (23) and on the upstream side of the receiver (24) when performing the cooling operation and is capable of shutting off passage of the refrigerant; a bypass refrigerant pipe (61) that interconnects the portion of a refrigerant circuit (10) between the liquid-side stop valve (26) and the outdoor expansion valve (38) and the portion of the refrigerant circuit (10) on the suction side of a compressor (21); and a liquid level detection sensor (39) that is placed on the upstream side of the liquid-side stop valve (26) when performing the cooling operation and detects a state quantity relating to the quantity of the refrigerant existing on the upstream side of the outdoor expansion valve (38).

4. 发明公开

EP3232137A1 PREHEATING DEVICE FOR COMPRESSORS 有权
标题翻译：压缩机预热装置
公开(公告)号：EP3232137A1
公开(公告)日：2017-10-18
申请号：EP15868365.6
申请日：2015-12-04
申请人： Daikin Industries, Ltd.
发明人： ISHIZEKI, Shinichi , DOUMAE, Hiroshi , KISHIWAKI, Yuusuke , FUJIWARA, Masahide , IKEDA, Motonobu
IPC分类号： F25B1/00 , F04B39/02
CPC分类号： F24H4/04 , F04B39/02 , F24H4/00 , F24H9/2021 , F25B1/00 , F25B30/00 , F25B30/02 , F25B2339/047 , F25B2500/31 , F25B2700/03 , F25B2700/04
摘要： A preheater for a compressor that is capable of heating a lubricant oil efficiently with smaller power is provided. A preheater (50) for a compressor (15) includes: a capacitive oil surface sensor (46) that is provided at a compressor (15) used in a refrigerating cycle, and detects an oil surface of a lubricant oil A in the compressor (15); and a power supply unit (45) that applies high-frequency voltage to the oil surface sensor (46).
摘要翻译：提供了一种能够以较小的功率有效地加热润滑油的压缩机的预热器。压缩机（15）的预热器（50）包括：电容式油面传感器（46），其设置于在制冷循环中使用的压缩机（15），检测压缩机内的润滑油A的油面 15）; 和向油面传感器（46）施加高频电压的电源部（45）。

5. 发明公开

EP2499435A4 REFRIGERANT LEAK DETECTION SYSTEM AND METHOD 有权
标题翻译： SYSTEM UND VERFAHREN ZURKÜHLMITTELLECKERKENNUNG
公开(公告)号：EP2499435A4
公开(公告)日：2017-08-16
申请号：EP10830696
申请日：2010-11-11
申请人： EMERSON RETAIL SERVICES INC
发明人： CLARK E TODD
IPC分类号： F24F11/00 , G01M3/32
CPC分类号： G01M3/3227 , F25B49/005 , F25B2500/19 , F25B2500/222 , F25B2700/04 , F25B2700/2106 , F25B2700/21152 , F25B2700/2116 , G01M3/3245
摘要： A refrigerant leak detection system is herein disclosed. The system can detect the existence of a slow leak based on the refrigerant level and the system data. They system uses data models, either stored or dynamically created, to calculate an expected refrigerant level. Based on the expected refrigerant level and the actual refrigerant level and statistical process control data, a leak can be identified.
摘要翻译：这里公开了一种制冷剂泄漏检测系统。根据制冷剂液位和系统数据，系统可以检测到缓慢泄漏的存在。他们的系统使用存储或动态创建的数据模型来计算预期的制冷剂液位。基于预期的制冷剂液位和实际制冷剂液位以及统计过程控制数据，可以识别泄漏。

6. 发明公开

EP2172722A4 AIR CONDITIONER 审中-公开
标题翻译： KLIMAANLAGE
公开(公告)号：EP2172722A4
公开(公告)日：2017-04-05
申请号：EP08764858
申请日：2008-05-29
申请人： DAIKIN IND LTD
发明人： KAWANO SATOSHI , OKA MASAHIRO , TANI KAZUHIKO , OKAMOTO ATSUSHI
IPC分类号： F25B49/02 , F24F11/02
CPC分类号： F25B45/00 , F25B13/00 , F25B49/005 , F25B2313/006 , F25B2313/02741 , F25B2700/04 , F25B2700/21163 , F25B2700/21174
摘要： The present invention provides an air conditioner that, without being equipped with a receiver, can determine whether a refrigerant circuit is filled with the appropriate amount of a refrigerant. A refrigerant adjustment vessel (21), a first solenoid valve (22), and a second solenoid valve (24) are provided to a bypass piping (18b). The refrigerant adjustment vessel (21) is capable of pooling the refrigerant. In addition, the first solenoid valve (22) is capable of blocking the refrigerant that flows from a second outdoor side liquid refrigerant piping (15c) into the refrigerant adjustment vessel (21). Furthermore, the second solenoid valve (24) is capable of blocking the refrigerant that flows from the refrigerant adjustment vessel ( 21 ) to a second outdoor side gas refrigerant piping (16c).
摘要翻译：本发明提供了一种空调器，其在没有配备接收器的情况下可以确定制冷剂回路是否填充有适量的制冷剂。制冷剂调节容器（21），第一电磁阀（22）和第二电磁阀（24）设置于旁路配管（18b）。制冷剂调节容器21能够使制冷剂混合。另外，第一电磁阀22能够阻挡从第二室外侧液体制冷剂配管15c流入制冷剂调节容器21的制冷剂。此外，第二电磁阀24能够阻止从制冷剂调节容器21流向第二室外侧气体制冷剂管道16c的制冷剂。

7. 发明公开

EP3118547A1 REFRIGERANT CHARGE AND CONTROL METHOD FOR HEAT PUMP SYSTEMS 审中-公开
标题翻译： KÜHLMITTELLADUNGS-UND -STEUERUNGSVERFAHRENFÜRWÄRMEPUMPENSYSTEME
公开(公告)号：EP3118547A1
公开(公告)日：2017-01-18
申请号：EP16177127.4
申请日：2016-06-30
申请人： Nortek Global HVAC, LLC
发明人： CHEN, Jie , HERZON, Aaron D. , EMBRY, Aaron Richard
IPC分类号： F25B49/02 , F25B43/00 , F25B13/00
CPC分类号： F25B45/00 , F25B13/00 , F25B43/006 , F25B49/02 , F25B2500/19 , F25B2500/23 , F25B2500/24 , F25B2600/2513 , F25B2700/04 , F25B2700/1931 , F25B2700/2104 , F25B2700/2106
摘要： A heat pump system (10) comprises a compressor (16), at least one expansion valve (22; 36), an accumulator (18) for storing a volume of liquid refrigerant therein, a liquid refrigerant indicator connected to the accumulator (18) to indicate an appropriate refrigerant charge in cooling and heating modes, and a controller (28). The controller (28) is configured to determine a target compressor discharge pressure based on measured outdoor air temperature and control the compressor discharge pressure by modulating the position of the at least one expansion valve (22; 36), wherein the higher the target discharge pressure target, the less liquid refrigerant is left in the accumulator (18). The accumulator (18) can be sized to always have capacity to hold excess refrigerant during heating operations, and can include a charge level indicator so as to allow proper charge of the system (10) in the field without additional tools.
摘要翻译：一种热泵系统（10），包括压缩机（16），至少一个膨胀阀（22; 36），用于储存一定体积的液体制冷剂的蓄能器（18），连接到蓄能器（18）的液体制冷剂指示器以在冷却和加热模式中指示适当的制冷剂充注，以及控制器（28）。控制器（28）被配置为基于测量的室外空气温度来确定目标压缩机排放压力，并通过调节至少一个膨胀阀（22; 36）的位置来控制压缩机排出压力，其中目标排出压力目标，蓄液器（18）中残留的液体制冷剂越少。蓄能器（18）的尺寸可设计成在加热操作期间始终具有容纳多余制冷剂的能力，并且可以包括充电水平指示器，以便允许在现场对系统（10）进行适当的充电，而无需额外的工具。

8. 发明公开

EP3101372A1 FREEZING UNIT 有权
标题翻译：冷冻装置
公开(公告)号：EP3101372A1
公开(公告)日：2016-12-07
申请号：EP15743479.6
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： F25B43/00 , F24F11/02 , F25B1/00 , F25B13/00
CPC分类号： F25B7/00 , F25B13/00 , F25B40/00 , F25B40/04 , F25B40/06 , F25B49/02 , F25B2313/0253 , F25B2341/064 , F25B2400/0405 , F25B2400/0419 , F25B2400/075 , F25B2400/16 , F25B2600/21 , F25B2700/04
摘要： The present invention provides a refrigeration apparatus whereby a bias in the amount of excess refrigerant in high-pressure receivers can be suppressed even when a plurality of heat-source units having high-pressure receivers are connected. A first heat-source unit (2a) and a second heat-source unit (2b) each have a compressor (21 a, 21 b), heat-source-side heat exchangers (24a, 25a, 24b, 25b), a receiver (80a, 80b), a receiver liquid level detecting tube (43a, 43b) for detecting a state of near flooding, a receiver venting tube (41 a, 41 b), and an motor-operated valve (42a, 42b) provided to the receiver venting tube (41 a, 41 b). Heat-source-side controllers (20a, 20b) perform opening degree control so that the opening degree of the motor-operated valve corresponding to the receiver (80a, 80b) other than a receiver for which a nearly flooded state is detected is greater than the opening degree of the motor-operated valve corresponding to the receiver (80a, 80b) for which a nearly flooded state is detected.

9. 发明公开

EP3086057A1 REFRIGERATION CIRCUIT WITH HEAT RECOVERY MODULE 失效
标题翻译： KÄLTEKREISLAUFMITWÄRMERÜCKGEWINNUNGSMODUL
公开(公告)号：EP3086057A1
公开(公告)日：2016-10-26
申请号：EP16165542.8
申请日：2013-09-19
申请人： Carrier Corporation
发明人： Hellmann, Sascha
IPC分类号： F25B43/00 , F25B49/02
CPC分类号： F25B49/027 , F25B43/00 , F25B2339/047 , F25B2341/0662 , F25B2400/06 , F25B2400/13 , F25B2400/16 , F25B2400/23 , F25B2600/05 , F25B2600/2519 , F25B2700/04
摘要： A refrigeration circuit (1) configured for circulating a refrigerant an comprises in the direction of flow of the refrigerant: at least one compressor (2a, 2b, 2c, 2d); at least one heat recovery heat exchanger (4); at least one gas cooler/condenser (10); at least one evaporator associated expansion device (18); at least one receiver (14); and at least one evaporator (20). A flash gas tapping line (21) is provided fluidly connecting an upper portion of the receiver (14) to an inlet side of the at least one compressor (2a, 2b, 2c, 2d). The refrigeration circuit (1) further comprises a gas/liquid separator (8) having a refrigerant inlet line (7) fluidly connected to an outlet-side of the at least one heat recovery heat exchanger (4); an gaseous phase outlet line (9) fluidly connected to an inlet side of the at least one gas cooler/condenser (10); and an liquid phase outlet line (13) fluidly connected to the receiver (14).
摘要翻译：构造成使制冷剂a循环的制冷回路（1）包括制冷剂流动方向：至少一个压缩机（2a，2b，2c，2d）; 至少一个热回收热交换器（4）; 至少一个气体冷却器/冷凝器（10）; 至少一个蒸发器相关联的膨胀装置（18）; 至少一个接收器（14）; 和至少一个蒸发器（20）。提供了将接收器（14）的上部与至少一个压缩机（2a，2b，2c，2d）的入口侧流体连接的闪蒸气排放管线（21）。制冷回路（1）还包括气/液分离器（8），其具有与至少一个热回收热交换器（4）的出口侧流体连接的制冷剂入口管线（7）。与所述至少一个气体冷却器/冷凝器（10）的入口侧流体连接的气相出口管线（9）。和流体连接到接收器（14）的液相出口管线（13）。

10. 发明公开

EP2562493A4 AIR CONDITIONER REFRIGERANT FILLING METHOD 有权转让
标题翻译：方法填充的空调系统，冰箱
公开(公告)号：EP2562493A4
公开(公告)日：2016-09-14
申请号：EP11771899
申请日：2011-04-12
申请人： MITSUBISHI HEAVY IND LTD
发明人： KATO TAKAHIRO , ENYA ATSUSHI
IPC分类号： F25B45/00 , F25B49/02
CPC分类号： F25B45/00 , F25B2345/001 , F25B2500/01 , F25B2500/19 , F25B2700/04
摘要： Provided is an air-conditioner refrigerant injecting method that enables precise and quick injection of an optimum amount of refrigerant . In an air-conditioner (1) refrigerant injecting method of injecting a specified amount of refrigerant into a closed-cycle refrigerant circuit (3) in which an outdoor unit (10) and a plurality of indoor units (11) to (16) are connected via refrigerant pipes (2), the pipe lengths and pipe diameters of the refrigerant pipes (2A) to (2M) connecting the outdoor unit (10) and the plurality of indoor units (11) to (16) installed on the respective floors of a structure (40) are identified insofar as they can be reliably measured or estimated, the minimum required refrigerant amount required by the air conditioner (1) is calculated on the basis of the pipe lengths and pipe diameters, the resulting amount of refrigerant is additionally injected in advance, and then the refrigerant is automatically injected by an automatic refrigerant injection function until a specified injection amount is reached.

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