公开(公告)号：EP3091311A4

公开(公告)日：2017-09-20

申请号：EP14875380

申请日：2014-10-15

申请人： GREE ELECTRIC APPLIANCES INC ZHUHAI

发明人： LI SHAOBIN ,  SU YUHAI ,  LIU QUNBO ,  SONG PEIGANG ,  HUANG CHUN ,  LIU HEXIN ,  CHEN ZEBIN ,  FU YINGSHENG ,  NI YI

IPC分类号： F25B13/00 ,  F04C23/00 ,  F25B41/04

CPC分类号： F25B41/04 ,  F04C28/24 ,  F25B1/02 ,  F25B13/00 ,  F25B49/02 ,  F25B2400/074 ,  F25B2600/0261 ,  F25B2600/2519 ,  F25B2700/21151 ,  F25B2700/21152

摘要： The disclosure discloses an air-conditioning system. The air-conditioning system includes a double-cylinder capacity-variable compressor (30), the double-cylinder capacity-variable compressor (30) having a suction port of an upper cylinder, a suction port of a lower cylinder and an exhaust port. The air-conditioning system further includes a first solenoid valve (71), one end of the first solenoid valve (71) is connected to the exhaust port of the double-cylinder capacity-variable compressor (30), and the other end of the first solenoid valve (71) is connected to a one-way valve (50) and the suction port of the lower cylinder of the double-cylinder capacity-variable compressor respectively. One end of the one-way valve (50) is connected to the first solenoid valve (71), and the other end of the one-way valve (50) is communicated with an inner chamber of a gas-liquid separator. The air-conditioning system further includes a second solenoid valve (72), the second solenoid valve (72) being provided in a pipeline connecting the suction port of the lower cylinder of the double-cylinder capacity-variable compressor to an inlet of the gas-liquid separator. By means of a drain bypass pipeline provided with a solenoid valve and additionally provided between the suction port of the lower cylinder and the inlet of the gas-liquid separator, a high-pressure coolant at a suction side of the lower cylinder can be decompressed to the gas-liquid separator, thereby optimizing the stability of the system when being switched from a single-cylinder operation to a double-cylinder operation. The disclosure also discloses a method for controlling an air-conditioning system.

摘要翻译： 本公开公开了一种空调系统。 该空调系统具备双气缸容量可变压缩机30，具有上气缸的吸气口，下气缸的吸气口和排气口的双气缸容积可变压缩机30。 空调系统还包括第一电磁阀（71），第一电磁阀（71）的一端连接到双气缸容量可变压缩机（30）的排气口，并且第二电磁阀 第一电磁阀71分别与单向阀50和双缸容量可变的压缩机的下缸的吸入口连接。 单向阀50的一端与第一电磁阀71连接，单向阀50的另一端与气液分离器的内腔连通。 空调系统还包括第二电磁阀（72），第二电磁阀（72）设置在将双气缸容量可变压缩机的下气缸的吸气口连接到气体入口的管线中 液分离器。 借助于设置有电磁阀并且附加地设置在下汽缸的吸入口和气液分离器的入口之间的排水旁通管路，下汽缸的吸入侧处的高压冷却剂能够被减压到 气液分离器，从而在从单缸操作切换到双缸操作时优化了系统的稳定性。 本公开还公开了一种用于控制空调系统的方法。

公开(公告)号：EP3006845A4

公开(公告)日：2017-03-01

申请号：EP13886136

申请日：2013-12-18

申请人： GREE ELECTRIC APPLIANCES INC ZHUHAI

发明人： HUANG CHUN ,  SONG PEIGANG ,  LIU HEXIN ,  CHEN ZEBIN ,  LIU QUNBO

IPC分类号： F24F11/00 ,  F25B13/00 ,  F25B31/00 ,  F25B49/02

CPC分类号： F25B31/004 ,  F25B13/00 ,  F25B49/02 ,  F25B2313/0233 ,  F25B2313/0253 ,  F25B2313/02533 ,  F25B2500/16 ,  F25B2600/01 ,  F25B2600/02 ,  F25B2600/0253 ,  F25B2600/2513 ,  Y02B30/741

摘要： An oil return method for multi-split air conditioner in heating comprises steps of: S1, adjusting operation frequency f0 of a compressor (11) to a first preset oil return frequency f1, and simultaneously, adjusting open degree S0 of each indoor throttling element (22) to a preset oil return open degree; S2, measuring operation parameters of the air conditioner; S3, judging whether the air conditioner operates abnormally, jumping to Step S4 if so, or jumping to Step S5 if not; S4, exiting from oil return process, adjusting the operation frequency f0 of the compressor (11) to a second preset oil return frequency f1, judging whether the air conditioner operates abnormally, existing from the oil return process if so, or jumping to Step S5 if not; S5, ending the oil return process when oil return time reaches the oil return time t2.

摘要翻译： 一种加热多分体式空调机的回油方法，包括以下步骤：S1，将压缩机（11）的运转频率f0调整到第一预设回油频率f1，同时调节各室内节流元件的开度S0 22）预设回油开度; S2，空调的测量操作参数; S3，判断空调是否运转异常，跳转到步骤S4，否则跳到步骤S5; 如图S4所示，从退油处理出发，将压缩机11的运转频率f0调整到第二预设回油频率f1，判断空调机是否异常运转，否则返回到步骤S5 如果不; S5，当回油时间到达回油时间t2时结束回油过程。