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    Apparatus for preventing liquid refrigerant accumulation of air conditioner and method thereof
    1.
    发明授权
    Apparatus for preventing liquid refrigerant accumulation of air conditioner and method thereof 有权
    用于防止空调的液体制冷剂积聚的装置及其方法

    公开(公告)号：US07584624B2

    公开(公告)日：2009-09-08

    申请号：US10929457

    申请日：2004-08-31

    申请人： Il Nahm Hwang ,  Young Min Park ,  Yoon Been Lee ,  Dong Jun Yang ,  Seok Ho Yoon ,  Jong Han Park ,  Sung Oh Choi ,  Sung Chun Kim

    发明人： Il Nahm Hwang ,  Young Min Park ,  Yoon Been Lee ,  Dong Jun Yang ,  Seok Ho Yoon ,  Jong Han Park ,  Sung Oh Choi ,  Sung Chun Kim

    IPC分类号： F25B31/00 ,  F25B43/02 ,  F25B1/10 ,  F04B17/00

    CPC分类号： F25B31/004 ,  F25B13/00 ,  F25B2313/001 ,  F25B2400/075 ,  F25B2400/19 ,  F25B2500/27 ,  F25B2600/021 ,  F25B2600/2519 ,  F25B2700/2106 ,  F25B2700/21152 ,  Y02B30/741

    摘要： Disclosed is an apparatus and method for preventing liquid refrigerant accumulation in an accumulator of an outdoor unit of an air conditioner. The method includes the steps of: determining a state of a compressor; if the compressor is in standby mode or off state, turning on a four-way valve; determining whether the state of the compressor in standby mode or off state continues longer than a predetermined amount of time; and if the state of the compressor continues longer than the predetermined amount of time, closing an expansion valve. Particularly, high-pressure refrigerant flows in the closed expansion valve while low-pressure refrigerant flows in a check valve through the four-way valve. The apparatus includes a suction pipe connected to spray oil of the accumulator to the compressor; a liquid recovery pipe with one end being connected to the suction pipe and the other end being connected to the accumulator; and a liquid recovery valve for controlling opening/closing of the liquid recovery pipe, in which a compressor of the air conditioner in cooling or heating mode is operated and a liquid recovery valve for controlling a liquid recovery pipe connected to the compressor and an accumulator is opened to reduce oil in the accumulator. According to the present invention, when the compressor is off, it is possible to prevent liquid refrigerant accumulation by changing refrigerant flow line to the accumulator and the refrigerant at the lower end of the accumulator can be recovered.

    摘要翻译： 公开了一种用于防止液体制冷剂积聚在空调的室外机的蓄能器中的装置和方法。 该方法包括以下步骤：确定压缩机的状态; 如果压缩机处于待机模式或关闭状态，打开四通阀; 确定压缩机的状态是否处于待机模式或关闭状态持续时间超过预定时间量; 并且如果压缩机的状态继续长于预定时间量，则关闭膨胀阀。 特别地，高压制冷剂在闭合膨胀阀中流动，而低压制冷剂通过四通阀在止回阀中流动。 该设备包括一个连接到压缩机上的蓄能器喷油的抽吸管; 液体回收管，其一端连接到吸入管，另一端连接到蓄能器; 以及用于控制液体回收管的打开/关闭的液体回收阀，其中操作冷却或加热模式的空调的压缩机和用于控制连接到压缩机和蓄液器的液体回收管的液体回收阀 打开以减少蓄能器中的油。 根据本发明，当压缩机关闭时，可以通过改变制冷剂流向蓄能器的流线来防止液体制冷剂的积聚，并且能够回收蓄能器的下端的制冷剂​​。

    Method for controlling multi-unit air conditioning system
    5.
    发明授权
    Method for controlling multi-unit air conditioning system 有权
    多单元空调系统的控制方法

    公开(公告)号：US07854138B2

    公开(公告)日：2010-12-21

    申请号：US11285360

    申请日：2005-11-23

    申请人： Il Nahm Hwang ,  Sung Oh Choi ,  Ho Jong Jeong ,  Seok Ho Yoon ,  Jin Ha Choi

    发明人： Il Nahm Hwang ,  Sung Oh Choi ,  Ho Jong Jeong ,  Seok Ho Yoon ,  Jin Ha Choi

    IPC分类号： F25B1/00 ,  F25B7/00 ,  F25B1/10

    CPC分类号： F25B49/022 ,  F25B2400/075 ,  F25B2600/0251

    摘要： A method for controlling a multi-unit air conditioning system adapted to cool or heat room spaces while passing a refrigerant in one direction or in a reverse direction is disclosed. In the method, which is applied to a multi-unit air conditioning system including at least three compressors, when a compressor re-operation is repeatedly carried out after all of the compressors have been turned off, to turn on again at least one of the compressors, repetition of the compressor re-operation is carried out for a predetermined number of different orders in such a manner that at least one of the compressors is turned on first in an associated order of the repeated compressor re-operation.

    摘要翻译： 公开了一种用于控制适于在使制冷剂沿一个方向或相反方向通过制冷剂的同时冷却或加热房间空间的多单元空调系统的方法。 在应用于包括至少三台压缩机的多单元空调系统的方法中，当在所有压缩机已经关闭之后重复执行压缩机重新运行时，再次打开至少一个 按照压缩机重复操作的重复执行预定数量的不同顺序，使得至少一个压缩机首先以重复的压缩机重新操作的相关顺序被转向。

    Control method for multiple heat pump
    6.
    发明授权
    Control method for multiple heat pump 有权
    多台热泵的控制方法

    公开(公告)号：US07272943B2

    公开(公告)日：2007-09-25

    申请号：US11063588

    申请日：2005-02-24

    申请人： Il Nahm Hwang ,  Sai Kee Oh ,  Yoon Been Lee ,  Se Dong Chang

    发明人： Il Nahm Hwang ,  Sai Kee Oh ,  Yoon Been Lee ,  Se Dong Chang

    IPC分类号： F25B5/00

    CPC分类号： F25B13/00 ,  F25B2313/02323 ,  F25B2313/02741 ,  F25B2400/075 ,  F25B2400/19 ,  F25B2600/2513 ,  F25B2700/21152

    摘要： Disclosed herein is a control method for a multiple heat pump. In the control method, when one of multiple indoor units operates in the heating mode and the other indoor units shut down, electronic expansion valves of the shutdown indoor units are controlled to have an opening degree higher than a standard opening degree if an outlet temperature of compressors is higher than a preset temperature, so as to permit a liquid refrigerant, remaining in the shutdown indoor units, to be more readily recovered to the compressors. This eliminates a refrigerant shortage phenomenon of the compressors and prevents deterioration of heating performance as well as reduction of life-span of the compressors.

    摘要翻译： 这里公开了一种多重热泵的控制方法。 在该控制方法中，当多个室内机组中的一个在加热模式下工作，其他室内机停机时，若将停机室内机的电子膨胀阀控制为具有高于标准开度的开度， 压缩机高于预设温度，从而允许残留在关闭室内单元中的液体制冷剂更容易地回收到压缩机中。 这消除了压缩机的制冷剂短缺现象，并且防止了加热性能的劣化以及压缩机寿命的缩短。

    Control method for four-way valve of multiple heat pump
    7.
    发明授权
    Control method for four-way valve of multiple heat pump 有权
    多台热泵四通阀控制方法

    公开(公告)号：US07181917B2

    公开(公告)日：2007-02-27

    申请号：US11063581

    申请日：2005-02-24

    申请人： Il Nahm Hwang ,  Sai Kee Oh ,  Yoon Been Lee ,  Se Dong Chang

    发明人： Il Nahm Hwang ,  Sai Kee Oh ,  Yoon Been Lee ,  Se Dong Chang

    IPC分类号： F25B1/00

    CPC分类号： F25B13/00 ,  F25B2313/0253 ,  F25B2313/0292 ,  F25B2700/1931 ,  F25B2700/1933

    摘要： Disclosed herein is a control method for four-way valves of a multiple heat pump. In the control method, if even at least one of four-way valves of respective outdoor units is not switched to a desired mode upon switching of all of the four-way valves to the desired mode, the other four-way valves, switched to the desired mode, is switched to an opposite direction of the desired mode, and then all of the four-way valves are switched again to the desired mode, thereby simply and rapidly correcting switching error of the four-way valves, resulting in normal operation of the multiple heat pump.

    摘要翻译： 这里公开了一种用于多重热泵的四通阀的控制方法。 在该控制方法中，即使在将所有四通阀切换到所需模式的情况下，即使各个室外机的四通阀中的至少一个没有切换到期望的模式，则另外四通阀切换到 所需模式切换到所需模式的相反方向，然后将所有四通阀再次切换到所需模式，从而简单快速地校正四通阀的开关误差，从而导致正常运行 的多重热泵。

    Refrigerant bypassing and filtering apparatus of air conditioner and method for controlling the same
    8.
    发明授权
    Refrigerant bypassing and filtering apparatus of air conditioner and method for controlling the same 有权
    空调制冷剂旁通过滤装置及其控制方法

    公开(公告)号：US07263846B2

    公开(公告)日：2007-09-04

    申请号：US11194469

    申请日：2005-08-02

    申请人： Il Nahm Hwang ,  Seok Ho Yoon ,  Pil Hyun Yoon ,  Ho Jong Jeong ,  Won Chul Kang

    发明人： Il Nahm Hwang ,  Seok Ho Yoon ,  Pil Hyun Yoon ,  Ho Jong Jeong ,  Won Chul Kang

    IPC分类号： F25B5/00 ,  F25B43/00

    CPC分类号： F25B45/00 ,  F25B13/00 ,  F25B43/003 ,  F25B2313/006 ,  F25B2345/001 ,  F25B2345/002 ,  F25B2400/0413

    摘要： A refrigerant bypassing and filtering apparatus of an air conditioner is disclosed which is capable of effectively removing foreign matter such as slag produced in a refrigerant line, not only when the air conditioner is initially operated, but also during normal operation of the air conditioner. The apparatus includes at least one bypass line adapted to guide a refrigerant to bypass a main line through which the refrigerant flows between an outdoor unit and an indoor unit, a strainer arranged at the bypass line, a first valve arranged at the main line between opposite ends of the bypass line connected to the main line, and second valves arranged at the bypass line.

    摘要翻译： 公开了一种空气调节器的制冷剂旁路和过滤装置，其不仅在空调器初始运行时，而且在空调器的正常运行期间能够有效地除去制冷剂管线中产生的诸如渣的异物。 所述装置包括至少一个旁通管线，其适于引导制冷剂绕过制冷剂在室外单元和室内单元之间流动的主管线，布置在旁路管路处的过滤器，布置在主线路上的相对的第一阀门 连接到主线路的旁路管路的端部，以及布置在旁路管路处的第二阀。

    Multi-unit air conditioner and method for controlling the same
    9.
    发明授权
    Multi-unit air conditioner and method for controlling the same 有权
    多机空调及其控制方法

    公开(公告)号：US07600389B2

    公开(公告)日：2009-10-13

    申请号：US11194440

    申请日：2005-08-02

    申请人： Ki Bum Kim ,  Il Nahm Hwang ,  Pil Hyun Yoon ,  Do Yong Ha ,  Young Min Park

    发明人： Ki Bum Kim ,  Il Nahm Hwang ,  Pil Hyun Yoon ,  Do Yong Ha ,  Young Min Park

    IPC分类号： F25B5/00

    CPC分类号： F25B13/00 ,  F24F3/065 ,  F24F11/83 ,  F25B2313/02331 ,  F25B2600/2513

    摘要： A multi-unit air conditioner and a method for controlling the same are disclosed which are capable of preventing continuous introduction of a refrigerant into indoor units in an OFF state where the indoor units can be independently powered on or off, thereby preventing a degradation in the cooling and heating efficiencies. The air conditioner includes a plurality of indoor units each including a power controller adapted to independently power on or off an associated one of the indoor units, an outdoor unit connected with the indoor units, the outdoor unit including a microcomputer for controlling an operation of the outdoor unit, and enabling the outdoor unit to communicate with the indoor units, and a controller for determining whether each of the indoor units is in a normal operation state or in a non-operation state, and controlling an operation of a distributor in accordance with the result of the determination.

    摘要翻译： 公开了一种多单元空调及其控制方法，其能够防止制冷剂在室内单元可独立通电或断开的OFF状态下连续引入室内机，从而防止 冷却和加热效率。 空调机包括多个室内单元，每个室内单元包括功率控制器，该功率控制器适于独立地接通或关闭相关联的一个室内单元，室外单元与室内单元连接，室外单元包括微型计算机，用于控制 室外机，室外机与室内机通信，以及控制器，用于判定各室内机是处于正常运转状态还是处于非运转状态，并根据 决定的结果。

    Multi-unit air conditioner and method for controlling the same
    10.
    发明授权
    Multi-unit air conditioner and method for controlling the same 有权
    多机空调及其控制方法

    公开(公告)号：US06755038B2

    公开(公告)日：2004-06-29

    申请号：US10459431

    申请日：2003-06-12

    申请人： Il Nahm Hwang

    发明人： Il Nahm Hwang

    IPC分类号： F25B3904

    CPC分类号： F25B49/027 ,  F25B13/00 ,  F25B2313/006 ,  F25B2313/0231 ,  F25B2313/0253 ,  F25B2313/0294 ,  F25B2313/0315 ,  F25B2400/075

    摘要： Multi-unit air conditioner and method for controlling the same, the multi-unit air conditioner including a plurality of outdoor heat exchangers, a plurality of outdoor fans for cooling the outdoor heat exchangers, and control means for controlling rotation speeds of the outdoor fans, to control a gas/liquid refrigerant mixing ratio introduced into the gas-liquid separator through the outdoor heat exchangers, thereby optimizing the mixing ratio of the refrigerant introduced to a gas-liquid separator proper to an operation condition, for improving an air conditioning efficiency. The control means including a temperature sensor for measuring a temperature of refrigerant introduced from the outdoor heat exchangers into the gas-liquid separator, and a microcomputer for comparing a refrigerant temperature measured with the temperature sensor and a preset refrigerant temperature, to detect a refrigerant mixing ratio at the outdoor unit piping system, and controlling rotation speeds of the outdoor fans so that detected refrigerant mixing ratios are the same with refrigerant mixing ratios preset to be proper to operation conditions, respectively.

    摘要翻译： 多机空调及其控制方法，包括多个室外热交换器的多机组空调机，室外热交换器的多个室外风扇，以及用于控制室外风扇的转速的控制单元， 以通过室外热交换器控制引入气液分离器的气/液制冷剂混合比，从而优化适合于操作条件的引入气液分离器的制冷剂的混合比，以提高空调效率。 该控制装置包括：温度传感器，用于测量从室外热交换器引入气液分离器的制冷剂的温度;以及微型计算机，用于将与温度传感器测量的制冷剂温度与预设的制冷剂温度进行比较，以检测制冷剂混合 并且控制室外风扇的转速，使得检测出的制冷剂混合比分别与预设为适合于操作条件的制冷剂混合比相同。