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21. 发明专利

JP2012117756A Refrigeration cycle apparatus and method of controlling operation of the same 审中-公开
标题翻译：制冷循环装置及其控制方法
公开(公告)号：JP2012117756A
公开(公告)日：2012-06-21
申请号：JP2010268343
申请日：2010-12-01
申请人： Hitachi Appliances Inc , 日立アプライアンス株式会社
发明人： URATA KAZUMIKI , YOSHIDA YASUTAKA , NAITO KOJI
IPC分类号： F24F11/02 , F25B13/00
CPC分类号： F25B2313/0231
摘要： PROBLEM TO BE SOLVED: To improve shortage in an amount of refrigerant circulation when operated in a heating operation mode, concerning a refrigeration cycle apparatus capable of simultaneous cooling and heating operation using a plurality of simple outdoor machines.SOLUTION: The refrigeration cycle apparatus includes a plurality of indoor machines 3a to 3c, a plurality of outdoor machines 1a and 1b that are connected with the indoor machines by two pipes of outdoor liquid connection pipes 18a and 18b and outdoor gas connection pipes 19a and 19b, indoor switching units 4a to 4c, and outdoor switching units 2a and 2b. and keeps the plurality of indoor machines connected to the plurality of outdoor machines in parallel by three pipes: a main liquid pipe 7, a first main gas pipe 5, and a second main gas pipe 6, thereby being configured to be operable under a cooling operation mode, a heating operation mode, and a cooling heating simultaneous operation mode. Operation control means 53 is provided configured such that at least one of the plurality of outdoor machines is operable under the heating operation mode and at least the other one of the outdoor machines is operable under the cooling operation mode when starting operation under the heating operation mode.
摘要翻译：要解决的问题：为了提高在制热运转模式下运转时制冷剂循环量的不足，涉及能够使用多台简易室外机同时进行制冷运转的制冷循环装置。解决方案：制冷循环装置包括多个室内机3a至3c，多个室外机1a和1b，其通过室外液体连接管18a和18b的两个管和室外气体连接管与室内机连接 19a和19b，室内开关单元4a至4c和室外开关单元2a和2b。并且通过主管液体管7，第一主气体管道5和第二主气体管道6的三个管道将多个室内机并联连接到多个室外机器，从而构造成可在冷却下操作操作模式，加热操作模式和冷却加热同时操作模式。操作控制装置53被构造成使得多个室外机中的至少一个在加热操作模式下可操作，并且至少另一个室外机可在制冷操作模式下操作，在加热操作模式下开始操作。版权所有（C）2012，JPO＆INPIT

22. 发明专利

JP2012117690A Heat storage type air conditioner 有权
标题翻译：热存储型空调
公开(公告)号：JP2012117690A
公开(公告)日：2012-06-21
申请号：JP2010265090
申请日：2010-11-29
申请人： Hitachi Appliances Inc , 日立アプライアンス株式会社
发明人： SEKIYA SADAO , YOSHIDA YASUTAKA , TEZUKA JUNICHIRO
IPC分类号： F25B1/00
摘要： PROBLEM TO BE SOLVED: To provide a heat storage type air conditioner that avoids a refrigerant deficiency of a heat source unit and improves reliability.SOLUTION: The heat storage type air conditioner, equipped with interior units 1a, 1b, heat source units 2a, 2b connected in parallel so as to constitute one freezing cycle together with the interior units 1a, 1b, heat storage units 3a, 3b connected between the interior units 1a, 1b and heat source units 2a, 2b, and a controller 4, includes heat storage gas piping 50a which leads a refrigerant in a vapor-liquid two-phase state flowing out of a heat storage heat exchanger 22 of the heat storage unit 3a during heat storage operation to an upstream side of a compressor 7 of the heat source unit 2a, and heat storage gas piping 50b which leads a refrigerant in a vapor-liquid two-phase state flowing out of a heat storage heat exchanger 22 of the heat storage unit 3b during heat storage operation to an upstream side of a compressor 7 of the heat source unit 2b.
摘要翻译：要解决的问题：提供一种避免热源单元的制冷剂不足并提高可靠性的蓄热型空调。解决方案：配备有内部单元1a，1b，与内部单元1a，1b一起构成一个冷冻循环的热源单元2a，2b的蓄热型空调，蓄热单元3a， 3b连接在内部单元1a，1b和热源单元2a，2b之间的控制器4和控制器4，包括将从储热热交换器22流出的气液两相状态的制冷剂导向的蓄热气体配管50a 蓄热单元3a在热源单元2a的压缩机7的上游侧的蓄热运转时的蓄热单元3a以及从蓄热室流出的气液两相状态的制冷剂蓄热单元3b的热交换器22在热源单元2b的压缩机7的上游侧。版权所有（C）2012，JPO＆INPIT

23. 发明专利

JP2009115340A Air conditioner 有权
标题翻译：冷气机
公开(公告)号：JP2009115340A
公开(公告)日：2009-05-28
申请号：JP2007286426
申请日：2007-11-02
申请人： Hitachi Appliances Inc , 日立アプライアンス株式会社
发明人： NAITO KOJI , NAKAMURA KENICHI , YOSHIDA YASUTAKA , URATA KAZUMIKI
IPC分类号： F25B49/02
CPC分类号： F25B2600/19 , F25B2700/04
摘要： PROBLEM TO BE SOLVED: To provide an air conditioner capable of performing a stable refrigerant amount determining operation of high accuracy for a long time while keeping reliability of a compressor even when an outside air temperature is low in winter.
SOLUTION: This air conditioner comprises an outdoor unit 10a having the compressor 10a, an outdoor heat exchanger 14a, an outdoor expansion valve 15a and a four-way valve 13a and not having a receiver, an indoor unit 40a having an indoor heat exchanger 41a and an indoor expansion valve 42a, a liquid connection pipe 35 and a gas connection pipe 36 connecting the outdoor unit 10a and the indoor unit 40a, and a refrigerant amount determining means for determining the adequate refrigerant amount of a refrigeration cycle in the refrigerant amount determining operation. The four-way valve 13a switches a cooling cycle and a heating cycle. In the refrigerant amount determining operation, the four-way valve 13a is switched to a heating cycle side, and the refrigerant amount determining means determines the adequate refrigerant amount of the refrigeration cycle based on a supercooling degree of the indoor heat exchanger 41a by the heating cycle in the refrigerant amount determining operation.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够在保持压缩机的可靠性的同时即使在冬天的外部空气温度低的情况下也能够长时间地进行高精度的稳定的制冷剂量判定动作的空调机。解决方案：该空调包括具有压缩机10a的室外单元10a，室外热交换器14a，室外膨胀阀15a和没有接收器的四通阀13a，具有室内热量的室内单元40a 交换器41a和室内膨胀阀42a，液体连接管35和连接室外单元10a和室内单元40a的气体连接管36，以及制冷剂量确定装置，用于确定制冷剂中的制冷循环的适当制冷剂量数量确定操作。四通阀13a切换冷却循环和加热循环。在制冷剂量确定操作中，四通阀13a切换到加热循环侧，并且制冷剂量确定装置基于通过加热的室内热交换器41a的过冷度来确定制冷循环的适当制冷剂量在制冷剂量确定操作中循环。版权所有（C）2009，JPO＆INPIT

24. 发明专利

JP2014013108A Air conditioner 有权
标题翻译：冷气机
公开(公告)号：JP2014013108A
公开(公告)日：2014-01-23
申请号：JP2012150543
申请日：2012-07-04
申请人： Hitachi Appliances Inc , 日立アプライアンス株式会社
发明人： YOSHIDA YASUTAKA , NAKAYAMA SUSUMU , YOKOZEKI ATSUHIKO , MATSUMURA KENJI , NAITO KOJI , ENDO MICHIKO , TOGUSA KENJI
IPC分类号： F24F11/02
摘要： PROBLEM TO BE SOLVED: To provide an air conditioner which reduces an idle defrosting operation and prevents stop of a heating operation and useless energy consumption due to the idle defrosting operation by improving accuracy of defrosting starting determination even when an outer air temperature is low.SOLUTION: An air conditioner includes: an outdoor unit having an outdoor heat exchanger; an indoor unit; and a refrigerating cycle constituted by connecting the outdoor unit and the indoor unit with piping. Further, a control calculation device for performing defrosting starting determination based on an outdoor heat exchanger liquid temperature, an outer air temperature and an outer door heat exchanger liquid temperature determination value is provided. The control calculation device performs the defrosting starting determination, measures a rising time of an outdoor heat exchanger liquid temperature upon the defrosting operation which is performed this time, compares the rising time with the determination value and determines whether the this-time defrosting operation is frosting/defrosting or is idle defrosting. When it is determined that the this-time defrosting is the idle defrosting operation, the outdoor heat exchanger liquid temperature determination value is corrected and, upon the next-time defrosting starting determination, the defrosting starting determination is performed based on the corrected outdoor heat exchanger liquid temperature determination value.
摘要翻译：要解决的问题：提供一种空调，其能够减少空闲除霜操作，并且即使当外部空气温度低时，也可以通过提高除霜开始确定的精度来防止停止加热操作以及由于空闲除霜操作而导致的无用的能量消耗。空调机：具有室外热交换器的室外机; 室内机; 以及通过将管路连接到室外机和室内机构成的制冷循环。此外，提供了一种用于基于室外热交换器液体温度，外部空气温度和外部门热交换器液体温度判定值进行除霜开始判定的控制计算装置。控制计算装置执行除霜开始判定，测定该次进行的除霜运转时的室外热交换器液温的上升时间，将上升时间与判定值进行比较，并判断此次除霜运转是否结霜 /除霜或空闲除霜。当确定此次除霜是空闲除霜操作时，校正室外热交换器液体温度判定值，并且在下一次除霜开始确定时，基于校正后的室外热交换器进行除霜开始判定液体温度测定值。

25. 发明专利

JP2012007884A Air conditioner 有权
标题翻译：冷气机
公开(公告)号：JP2012007884A
公开(公告)日：2012-01-12
申请号：JP2011192268
申请日：2011-09-05
申请人： Hitachi Appliances Inc , 日立アプライアンス株式会社
发明人： KOSUGI SHINICHI , OISHI KENICHI , YOSHIDA YASUTAKA , HATA YOSHIKI , SANO NOBUHIRO
IPC分类号： F24F11/02
摘要： PROBLEM TO BE SOLVED: To prevent a user from feeling cold when the temperature of air blown from an indoor unit is reduced and perform comfortable room temperature control during cooling operation.SOLUTION: The reduction in temperature of air blown from an indoor unit is prevented during cooling operation and comfortable indoor air-conditioning is achieved by: controlling the number of rotations of a blower for an outdoor unit based on an indoor blowoff air temperature, an outdoor outside air temperature and an operating frequency of a compressor; controlling the degree of opening of an indoor expansion valve based on the indoor blowoff air temperature; and controlling ON/OFF of a solenoid valve for a bypass circuit based on a discharge temperature of the compressor, etc.
摘要翻译：要解决的问题：为了防止使用者在从室内机吹出的空气的温度降低时感觉冷，并且在制冷运转时进行舒适的室内温度控制。解决方案：在制冷运转时，可以防止从室内机吹出的空气的温度降低，并且通过以下方式实现舒适的室内空调：基于室内吹出空气温度来控制室外机的鼓风机的转数室外室外温度和压缩机的工作频率; 根据室内吹出空气温度控制室内膨胀阀的开度; 基于压缩机的排出温度等控制旁路回路的电磁阀的ON / OFF等。（C）2012，JPO＆INPIT

26. 发明专利

JP2010243123A Refrigeration cycle apparatus 有权
标题翻译：制冷循环装置
公开(公告)号：JP2010243123A
公开(公告)日：2010-10-28
申请号：JP2009094925
申请日：2009-04-09
申请人： Hitachi Appliances Inc , 日立アプライアンス株式会社
发明人： SEKIYA SADAO , YOSHIDA YASUTAKA , NAITO KOJI
IPC分类号： F25B13/00 , F25B1/00 , F25B29/00
CPC分类号： F25B13/00 , F25B2313/007 , F25B2313/0231 , F25B2313/0233 , F25B2313/0253 , F25B2313/02742
摘要： PROBLEM TO BE SOLVED: To provide a simultaneous cooling and heating type refrigeration cycle apparatus with a simple configuration using outdoor units in which a cooling operation and a heating operation can be performed in a switchable manner. SOLUTION: This refrigeration cycle apparatus includes the first and second outdoor units respectively including a compressor, an outdoor heat exchanger, a gas connection port, and a liquid connection port, a plurality of indoor units in which indoor liquid pipes, indoor heat exchangers, and indoor gas pipes are connected in order, and a common liquid pipe through which the liquid connection ports of the outdoor units are communicated with the indoor liquid pipes in the plurality of indoor units. The indoor gas pipe of each indoor unit is branched into a first gas pipe and a second gas pipe, the first gas pipe is connected to the gas connection port of one of the outdoor units, the second gas pipe is connected to the gas connection port of the other outdoor units, pipe switching units for switching channels are disposed in the first gas pipe and the second gas pipe of each of the indoor units, and each of the indoor heat exchangers is communicated with only one of the outdoor units by switching the pipe switching units. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种使用室外单元的简单配置的同时制冷和加热型制冷循环装置，其中可以以可切换的方式进行制冷操作和加热操作。解决方案：该制冷循环装置包括分别包括压缩机，室外热交换器，气体连接口和液体连接口的第一和第二室外机组，室内液体管，室内热量交换器和室内气体管道连接，并且室外单元的液体连接端口与多个室内单元中的室内液体管道连通的公共液体管道。每个室内单元的室内气体管道分支成第一气体管道和第二气体管道，第一气体管道连接到一个室外单元的气体连接口，第二气体管道连接到气体连接端口的其他室外机组的各个室内机的第一气体配管和第二气体配管配置有用于切换通道的配管切换单元，并且通过切换管道切换装置。版权所有（C）2011，JPO＆INPIT

27. 发明专利

JP2010127587A Refrigerating cycle device 有权
标题翻译：制冷循环装置
公开(公告)号：JP2010127587A
公开(公告)日：2010-06-10
申请号：JP2008305838
申请日：2008-12-01
申请人： Hitachi Appliances Inc , 日立アプライアンス株式会社
发明人： SEKIYA SADAO , YOSHIDA YASUTAKA , NAITO KOJI
IPC分类号： F25B13/00 , F24F11/02
CPC分类号： F25B2313/0231
摘要： PROBLEM TO BE SOLVED: To obtain a refrigerating cycle device enabling the efficient simultaneous operation of cooling and heating even if the temperature difference between indoor and outdoor sides is large. SOLUTION: A plurality of outdoor modules 20a, 20b including compressors 1, 2, flow passage changeover valves 5, 13, outdoor heat exchangers 3, 4 and decompression means 6, 14 and a plurality of indoor units 21a, 21b are connected by a high pressure gas pipe 8, a low pressure gas pipe 9 and a liquid pipe 10. The liquid pipe including the decompression means is connected to one end of the outdoor heat exchanger and the flow rate changeover valve is connected to the other end. In the first outdoor module 20a out of the plurality of outdoor modules, a discharge port of the compressor is connected to piping between the flow passage changeover valve and the high pressure gas pipe. The second outdoor module 20b includes a high pressure control valve 11 provided in piping connecting the flow passage changeover valve with the high pressure gas pipe and a low pressure control valve 12 provided in piping connecting the flow passage changeover valve with the low pressure gas pipe. During heat recovery operation, the decompression means is closed in the first outdoor module to make a refrigerant flow to the high pressure gas pipe and the decompression means is opened in the second outdoor module to make a refrigerant flow to the outdoor heat exchanger. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了获得即使室内和外侧之间的温度差较大，也能够实现冷却和加热的有效同时操作的制冷循环装置。解决方案：包括压缩机1,2，流路切换阀5,13，室外热交换器3,4和减压装置6,14以及多个室内机组21a，21b的多个室外模块20a，20b连接通过高压气体管道8，低压气体管道9和液体管道10.包括减压装置的液体管连接到室外热交换器的一端，并且流量转换阀连接到另一端。在多个室外模块中的第一室外模块20a中，压缩机的排出口与流路切换阀和高压气体配管之间的配管连接。第二室外模块20b包括设置在将流路切换阀与高压气体管连接的配管中的高压控制阀11和将流路切换阀与低压气体管连接的配管中的低压控制阀12。在热回收操作期间，第一室外模块中的减压装置关闭，使制冷剂流向高压气体管道，减压装置在第二室外模块中打开以制冷剂流向室外热交换器。版权所有（C）2010，JPO＆INPIT

28. 发明专利

JP2010065958A Air-conditioning system 有权
标题翻译：空调系统
公开(公告)号：JP2010065958A
公开(公告)日：2010-03-25
申请号：JP2008234155
申请日：2008-09-12
申请人： Hitachi Appliances Inc , 日立アプライアンス株式会社
发明人： URATA KAZUMIKI , YOSHIDA YASUTAKA , NAITO KOJI , YOKOZEKI ATSUHIKO , MATSUMURA KENJI
IPC分类号： F24F11/02 , F25B1/00
摘要： PROBLEM TO BE SOLVED: To provide an air-conditioning system properly controlling heater energization for preventing liquid compression at compressor starting even if ambient temperatures vary according to the places where outdoor units are installed, in regard to an air-conditioning system comprised by connecting a plurality of outdoor units. SOLUTION: The outdoor units 1a, 1b equipped with compressors 3a, 3b and outdoor heat exchangers 7a, 7b are respectively equipped with compressor preheating devices 10a, 10b for heating the compressors, and detecting means 15a, 15b for detecting values relevant to the internal or external temperature of the outdoor units. A preheating device control means 14 is provided to control so as to energize a compressor preheating device equipped in an outdoor unit of a side with a lower detection value of the plurality of detecting means. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供适当地控制加热器通电的空调系统，以防止压缩机启动时的液体压缩，即使环境温度根据室外单元的安装位置而变化，关于包括的空调系统通过连接多个室外机。解决方案：装有压缩机3a，3b和室外热交换器7a，7b的室外机1a，1b分别装有用于加热压缩机的压缩机预热装置10a，10b，以及检测装置15a，15b，用于检测与室外机的内部或外部温度。提供预热装置控制装置14，以控制以使具有多个检测装置的较低检测值的侧面的室外单元中配备的压缩机预热装置通电。版权所有（C）2010，JPO＆INPIT

29. 发明专利

JP2010048506A Multi-air conditioner 审中-公开
标题翻译：多空调
公开(公告)号：JP2010048506A
公开(公告)日：2010-03-04
申请号：JP2008214786
申请日：2008-08-25
申请人： Hitachi Appliances Inc , 日立アプライアンス株式会社
发明人： NAITO KOJI , YOSHIDA YASUTAKA , URATA KAZUMIKI , TEZUKA JUNICHIRO
IPC分类号： F24F11/02 , F25B13/00
摘要： PROBLEM TO BE SOLVED: To prevent excess accumulation of a refrigerant in a compressor of a part of outdoor units even when the outdoors units in a heating/cooling operation state and in a stop state are mixed in the plurality of outdoor units. SOLUTION: A plurality of indoor units 40a-40d respectively comprise indoor heat exchangers 41a-41d and indoor expansion valves 42a-42d, and the plurality of outdoor units 10a, 10b respectively comprise the compressors 11a, 11b, check valves 12a, 12b, four-way valves 13a, 13b, outdoor heat exchangers 14a, 14b, and outdoor expansion valves 15a, 15b. The plurality of indoor units and the plurality of outdoor units are connected by liquid connection piping 35 and gas connection piping 36, opening/closing mechanisms 16a, 16b are respectively disposed between the four-way valve and a suction side of the compressor, and when at least one of the plurality of outdoor units performs the heating operation, the opening/closing mechanism of the stopped outdoor unit among the remaining outdoor units is closed, and the opening/closing mechanism of the outdoor unit performing a defrosting operation is closed, or its opening is adjusted. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：即使在加热/制冷运行状态和停止状态下的室外机组混合在多个室外机中时，也可以防止制冷剂在室外机的一部分的压缩机中的过度积聚。解决方案：多个室内单元40a-40d分别包括室内热交换器41a-41d和室内膨胀阀42a-42d，多个室外单元10a，10b分别包括压缩机11a，11b，止回阀12a， 12b，四通阀13a，13b，室外热交换器14a，14b和室外膨胀阀15a，15b。多个室内机和多个室外机通过液体连接配管35和气体连接配管36连接，开闭机构16a，16b分别设置在四通阀与压缩机的吸入侧之间，当多个室外机中的至少一个进行制热运转，其余室外机中的停止室外机的开闭机构关闭，进行除霜运转的室外机的开闭机构关闭，或其开放调整。版权所有（C）2010，JPO＆INPIT

30. 发明专利

JP2013113499A Air conditioner 有权
标题翻译：冷气机
公开(公告)号：JP2013113499A
公开(公告)日：2013-06-10
申请号：JP2011260374
申请日：2011-11-29
申请人： Hitachi Appliances Inc , 日立アプライアンス株式会社
发明人： MATSUMURA KENJI , YOSHIDA YASUTAKA , YOKOZEKI ATSUHIKO
IPC分类号： F24F11/02 , F25B1/00
摘要： PROBLEM TO BE SOLVED: To provide an air conditioner for suppressing operation efficiency from being deteriorated regardless of a natural circulation air-conditioning operation and a forced circulation air-conditioning operation.SOLUTION: An air conditioner is configured by successively connecting a compressor 100, an outdoor heat exchanger 120, a pressure reducing device 130, and an indoor heat exchanger 140 by a refrigerant piping so as to perform a forced circulation air-conditioning operation for forced refrigerant circulation and a natural circulation air-conditioning operation for natural refrigerant circulation. Furthermore, the air conditioner is equipped with a bypass pipe 160 for bypassing the suction side and discharge side of the compressor, a check valve 161 arranged in the bypass pipe, and an internal heat exchanger 150 for heat exchanging a liquid refrigerant condensed by the outdoor heat exchanger with a gas refrigerant sucked by the compressor in the forced circulation air-conditioning operation. In the forced circulation air-conditioning operation, the condensed refrigerant from the outdoor heat exchanger is super-cooled by the internal heat exchanger, and the refrigerant which becomes surplus in the forced circulation air-conditioning operation is stored in the indoor heat exchanger as the liquid refrigerant.
摘要翻译：解决问题：无论自然循环空调操作和强制循环空调操作如何，都提供一种用于抑制运行效率降低的空调。解决方案：通过制冷剂管道连续地连接压缩机100，室外热交换器120，减压装置130和室内热交换器140，构成空调机，进行强制循环空调运转用于强制制冷剂循环和自然循环空调操作，用于自然制冷剂循环。此外，空气调节器配备有用于绕过压缩机的吸入侧和排出侧的旁通管160，布置在旁通管中的止回阀161和用于使室外冷凝的液体制冷剂进行热交换的内部热交换器150 在强制循环空调操作中由压缩机吸入的气体制冷剂的热交换器。在强制循环空调运转中，来自室外热交换器的冷凝的制冷剂被内部热交换器过冷却，强制循环空调运转中变成剩余的制冷剂作为液体制冷剂。版权所有（C）2013，JPO＆INPIT

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