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1. 发明专利

JP2013178046A Air conditioning apparatus 审中-公开
标题翻译：冷气机
公开(公告)号：JP2013178046A
公开(公告)日：2013-09-09
申请号：JP2012042688
申请日：2012-02-29
申请人： Hitachi Appliances Inc , 日立アプライアンス株式会社
发明人： FURUTA HIROTAKA
IPC分类号： F25B1/00 , F25B47/02
CPC分类号： Y02B30/72
摘要： PROBLEM TO BE SOLVED: To provide an air conditioner capable of improving heating start-up performance or defrost restoration performance.SOLUTION: An air conditioner includes: a compressor to compress a refrigerant; an indoor heat exchanger where the refrigerant compressed by the compressor flows when heating is operating; an electrically-driven expansion valve where the refrigerant condensed by the indoor heat exchanger flows; an outdoor heat exchanger where the refrigerant expanded by the electrically-driven expansion valve flows; an outdoor temperature detection means to detect outside air temperatures; and a control section to control the opening degree of the electrically-driven expansion valve. The control section controls the opening degree of the electrically-driven expansion valve to fix at a set time and a set opening degree when operation of heating starts to change the set opening degree depending on the difference between the temperature detected by the outdoor temperature detection means at the time of starting the heating operation and a temperature of gas saturation on an intake side of the compressor.
摘要翻译：要解决的问题：提供一种能够提高加热启动性能或除霜恢复性能的空调。解决方案：一种空调包括：压缩机，用于压缩制冷剂; 室内热交换器，其中在加热时由压缩机压缩的制冷剂流动; 由室内热交换器冷凝的制冷剂流过的电动膨胀阀; 由电动膨胀阀膨胀的制冷剂的室外热交换器流动; 室外温度检测装置，用于检测室外空气温度; 以及控制部，其控制电动膨胀阀的开度。控制部根据由室外温度检测机构检测到的温度的差异，控制电动膨胀阀的开度，固定在设定时间和设定开度，当加热开始开始改变设定开度时，在开始加热操作时和压缩机的进气侧的气体饱和温度。

2. 发明专利

JP2010276250A Air conditioner 有权
标题翻译：冷气机
公开(公告)号：JP2010276250A
公开(公告)日：2010-12-09
申请号：JP2009128180
申请日：2009-05-27
申请人： Hitachi Appliances Inc , 日立アプライアンス株式会社
发明人： FURUTA HIROTAKA , KAWAGUCHI HIROYUKI , TEZUKA JUNICHIRO
IPC分类号： F25B43/00 , F04B39/04 , F04B39/16 , F25B1/00
摘要： PROBLEM TO BE SOLVED: To provide an air conditioner capable of simplifying a configuration and installation work and having oil separators capable of uniformizing the amount of refrigerating machine oil returned to each compressor of a plurality of outdoor units operated in parallel.
SOLUTION: A refrigerating cycle is formed by interconnecting the plurality of compressors in parallel. The oil separator 9 including a cylindrical container 22, an inner cylinder 23 concentrically inserted from a tip of the cylindrical container 22 and opened in the cylindrical container 22, a gas refrigerant inlet pipe 27 for introducing a gas refrigerant to the tangential direction of the cylindrical container 22, a gas refrigerant outlet pipe 35 communicating with the inside of the inner cylinder 23 and a return pipe extracting refrigerant machine oil stored in the cylindrical container 22 and returning the refrigerant machine oil to the compressor is inserted and connected to a refrigerant discharge pipe of each of the compressors 1. An interval between the cylindrical container 22 and the inner cylinder 23 is formed to be the inner diameter of the gas refrigerant inlet pipe 27 or smaller.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够简化配置和安装工作的空调机，并且具有能够使返回到并行操作的多个室外机的每个压缩机的冷冻机油的量均匀化的油分离器。解决方案：通过并联连接多个压缩机来形成制冷循环。包括圆柱形容器22的油分离器9和从圆筒形容器22的顶端同心地插入并在圆筒形容器22中开口的内筒23，气体制冷剂入口管27用于将气体制冷剂引导到圆筒形容器22的切线方向容器22，与内筒23的内部连通的气体制冷剂出口管35和存储在圆筒形容器22中并将制冷剂机油返回到压缩机的回流管提取制冷机油被插入并连接到制冷剂排出管每个压缩机1之间的间隔。圆筒形容器22和内筒23之间的间隔形成为气体制冷剂入口管27的内径或更小。版权所有（C）2011，JPO＆INPIT

3. 发明专利

JP2014126306A Air conditioner 有权
标题翻译：冷气机
公开(公告)号：JP2014126306A
公开(公告)日：2014-07-07
申请号：JP2012283860
申请日：2012-12-27
申请人： Hitachi Appliances Inc , 日立アプライアンス株式会社
发明人： FURUTA HIROTAKA , TANI KAZUHIKO , AKIYAMA YOSHIYUKI , INABA MASAMI , KANEKO HIROAKI
IPC分类号： F25B45/00
摘要： PROBLEM TO BE SOLVED: To fill refrigerant of an appropriate amount into an air conditioner and piping elements.SOLUTION: An air conditioner includes: an outdoor unit including a compressor, an outdoor heat exchanger, and an expansion valve; an indoor unit including an indoor heat exchanger, and connected to the outdoor unit via a piping element; and a controller controlling a refrigerating cycle formed by the outdoor unit, the indoor unit, and the piping element. The outdoor unit further includes; a prevention valve for opening/closing a channel between the outdoor unit and the piping element; and a pressure sensor measuring a pressure of refrigerant in the outdoor unit. If the prevention valve is opened in a state in which the prevention valve is closed and an interior of the piping element is decompressed, the controller determines whether to perform a first filling process for filling the refrigerant into the refrigerating cycle from a refrigerant cylinder without actuating the compressor, on the basis of a change in the pressure measured before and after opening of the prevention valve.
摘要翻译：要解决的问题：将适量的制冷剂填充到空调和管道元件中。空调器包括：室外单元，包括压缩机，室外热交换器和膨胀阀; 室内机，其具有室内热交换器，经由管路元件与室外机连接; 以及控制由室外机，室内机和管路元件形成的制冷循环的控制器。室外机还包括：用于打开/关闭室外单元和管道元件之间的通道的防止阀; 以及测量室外机中的制冷剂压力的压力传感器。如果在防止阀关闭并且管道元件的内部被减压的状态下防止阀打开，则控制器确定是否执行从制冷剂气瓶将致冷剂填充到制冷循环中的第一填充过程，而不致动基于在防止阀打开之前和之后测量的压力变化的压缩机。

4. 发明专利

JP2014029225A Air conditioning device 有权
标题翻译：空调设备
公开(公告)号：JP2014029225A
公开(公告)日：2014-02-13
申请号：JP2012169080
申请日：2012-07-31
申请人： Hitachi Appliances Inc , 日立アプライアンス株式会社
发明人： SEKIYA SADAO , NAITO KOJI , URATA KAZUMIKI , KAWAGUCHI HIROYUKI , FURUTA HIROTAKA
IPC分类号： F25B1/00 , F25B43/00 , F25B43/02
摘要： PROBLEM TO BE SOLVED: To provide an air conditioning device having high reliability, a reduced difference in an amount of oil held by each of accumulators, and an improved oil averaging function.SOLUTION: Accumulators 9a and 9b have output pipes provided with a plurality of second oil return holes at different positions in a vertical direction within a range from a liquid level Ls to a liquid level Ld, where Ms is an amount of oil in the accumulators on the assumption that an amount of oil held by compressors 1a and 1b and oil separators 8a and 8b minus the total amount of sealed oil exists in the accumulators, Ls is the liquid level at that time, ML is an amount of oil when the liquid level in the accumulators is at an upper end of a first oil return hole, Mh is an amount of oil when the liquid level is at an upper end of the second oil return holes, N (N>1) is the number of a plurality of outdoor units, and Ld is the liquid level when the amount of oil is increased from the amount of oil Ms according to (Ms-ML)/(N-1).
摘要翻译：要解决的问题：提供一种具有高可靠性的空调装置，减少了每个蓄能器保持的油量的差异，并提高了油平均功能。解决方案：蓄能器9a和9b具有设置有多个在从液面Ls到液面Ld的范围内的垂直方向上的不同位置处的第二回油孔，其中，Ms是累加器中的油量，假定由压缩机1a和1b保持的油量以及油分离器8a和8b减去密封油的总量存在于蓄能器中，Ls是当时的液位，ML是当蓄能器中的液面位于第一回油孔的上端时的油量 Mh是液面位于第二回油孔的上端的油量，N（N> 1）是多个室外机的数量，Ld是油量时的液面从数量增加油Ms（Ms-ML）/（N-1））。

5. 发明专利

JP2013178058A Air conditioner 有权
标题翻译：冷气机
公开(公告)号：JP2013178058A
公开(公告)日：2013-09-09
申请号：JP2012042884
申请日：2012-02-29
申请人： Hitachi Appliances Inc , 日立アプライアンス株式会社
发明人： KAWAGUCHI HIROYUKI , WATANABE MASAKEI , FURUTA HIROTAKA , NAKAMURA NORIYUKI
IPC分类号： F24F11/02 , F25B1/00 , F25B13/00
摘要： PROBLEM TO BE SOLVED: To properly adjust a heat exchange amount of indoor units regardless an installation state, in an air conditioner including the plurality of indoor units.SOLUTION: In an air conditioner in which outdoor units each including a compressor, a four-way valve, an outdoor heat exchanger, an outdoor expanding device, an outdoor blower and an outside air temperature sensor, and a plurality of indoor units each including an indoor expanding device, an indoor heat exchanger and an indoor blower, are connected by a liquid connection pipe and a gas connection pipe, first temperature sensors are disposed to measure a liquid pipe temperature at outdoor unit sides, second temperature sensors are respectively disposed on the indoor heat exchangers of the indoor units to measure outlet temperatures, and control sections are disposed to compare detection temperatures of both temperature sensors during a heating operation so that the indoor unit in which the difference is over a specific value, is controlled to open a valve of the indoor expanding device by a prescribed value A.
摘要翻译：要解决的问题：在包括多个室内机的空调器中，适当地调整室内机的热交换量，而不管安装状态如何。在一种空调机中，室内机包括压缩机，四通道阀，室外热交换器，室外膨胀装置，室外鼓风机和外部空气温度传感器，以及包括室内膨胀装置，室内热交换器和室内鼓风机的多个室内机通过液体连接管和气体连接管，第一温度传感器设置为测量室外单元侧的液管温度，第二温度传感器分别设置在室内单元的室内热交换器上以测量出口温度，并且控制部分被设置为比较在加热操作期间两个温度传感器的检测温度，使得差异超过特定的室内单元控制开启室内膨胀装置的阀门达规定值A.

6. 发明专利

JP2013204951A Air conditioning apparatus 有权
标题翻译：空调设备
公开(公告)号：JP2013204951A
公开(公告)日：2013-10-07
申请号：JP2012075400
申请日：2012-03-29
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 , TANI KAZUHIKO , FURUTA HIROTAKA
IPC分类号： F25B43/00 , F25B43/02
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive air conditioning apparatus in which an oil distribution performance of the air conditioning apparatus configured by connecting a plurality of outdoor units is maintained without using an oil equalization pipe and a performance as an air conditioning apparatus can be improved at a maximum.SOLUTION: In an accumulator of an air conditioning apparatus, a first oil return hole is formed as an oil flow rate adjusting mechanism in a lower part of a lead-out pipe within a container. When dryness by the first oil return hole is defined as X1, a first oil return hole diameter is defined as d1, a lead-out pipe inner diameter is defined as D, a compressor maximum oil rising rate is defined as α and a coolant solubility within the accumulator is defined as Cr, the lead-out pipe inner diameter D and the first oil return hole diameter d1 of the accumulator are set to satisfy d1=A×(D), 0.1
摘要翻译：要解决的问题：提供一种便宜的空调装置，其中通过连接多个室外机而构成的空调装置的配油性能得以维持而不使用均油管，并且可以提高作为空调装置的性能在空调装置的蓄能器中，在容器内的引出管的下部形成作为油流量调节机构的第一回油孔。当第一回油孔的干燥被定义为X1时，第一回油孔直径定义为d1，引出管内径定义为D，压缩机最大上油速率定义为α和冷却剂溶解度在蓄能器内定义为Cr，蓄电池的引出管内径D和第一回油孔直径d1设定为满足d1 = A×（D），0.1

7. 发明专利

JP2013024540A Multi-type refrigeration cycle device 有权
标题翻译：多级制冷循环装置
公开(公告)号：JP2013024540A
公开(公告)日：2013-02-04
申请号：JP2011162764
申请日：2011-07-26
申请人： Hitachi Appliances Inc , 日立アプライアンス株式会社
发明人： KANEKO HIROAKI , KAWAGUCHI HIROYUKI , FURUTA HIROTAKA
IPC分类号： F24F11/02
摘要： PROBLEM TO BE SOLVED: To place a refrigeration cycle device in efficient operation when there is a user-side unit which exceeds a range of normal load variation among a plurality of user-side units.SOLUTION: In a specific user-side unit 15c among user-side units (15a, 15b, and 15c), a first set opening degree is set as the upper-limit value of the opening degree of a flow rate control valve (14c) that the specific user-side unit 15c has, and also the upper-limit value of the opening degree of the flow rate control valve (14c) is set to a second set opening degree smaller than the first set opening degree set, when a state in which suction temperature of the specific user-side unit (15c) is equal to or lower than set temperature (Tbc) lower than target temperature (Tsc) set for the specific user-side unit (15c) lasts for a set time (t0).
摘要翻译：要解决的问题：当存在超过多个用户侧单元之间的正常负载变化范围的用户侧单元时，将制冷循环装置置于有效的操作中。解决方案：在用户侧单元（15a，15b和15c）中的特定用户侧单元15c中，将第一设定开度设定为流量控制阀的开度的上限值（14c），并且流量控制阀（14c）的开度的上限值也被设定为小于设定的第一设定开度的第二设定开度，当特定用户侧单元（15c）的吸入温度等于或低于为特定用户侧单元（15c）设置的目标温度（Tsc）低于设定温度（Tbc））的状态持续一段时间时间（t0）。版权所有（C）2013，JPO＆INPIT

8. 发明专利

JP2012207866A Air conditioner 审中-公开
标题翻译：冷气机
公开(公告)号：JP2012207866A
公开(公告)日：2012-10-25
申请号：JP2011074470
申请日：2011-03-30
申请人： Hitachi Appliances Inc , 日立アプライアンス株式会社
发明人： FURUTA HIROTAKA , FUKAYA YOSHIHIRO
IPC分类号： F24F11/02
摘要： PROBLEM TO BE SOLVED: To raise the efficiency of an air conditioner over a wide-ranging partial load.SOLUTION: The air conditioner includes an outdoor unit 11 having two or more variable-frequency compressors 1 and two or more indoor units 15, wherein the two or more compressors each have a characteristic formula that is the relational expression between the overall adiabatic efficiency and a frequency, and are provided with a controller 20 that controls the frequency of the compressor in operation so that the overall adiabatic efficiency is obtained based on the characteristic formula of the compressor in operation among the two or more compressors and that the obtained overall adiabatic efficiency becomes equal to or more than a predetermined value.
摘要翻译：要解决的问题：提高空调在大范围部分负荷下的效率。解决方案：空调包括具有两个或更多个可变频率压缩机1和两个或更多个室内单元15的室外单元11，其中两个或更多个压缩机各自具有作为整体绝热之间的关系表达式的特征公式效率和频率，并且设置有控制器20，其控制运行中的压缩机的频率，使得基于两个或更多个压缩机之间的运行中的压缩机的特性公式获得整体绝热效率，并且获得的总体绝热效率等于或大于预定值。版权所有（C）2013，JPO＆INPIT

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