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1. 发明公开

EP3324135A1 MULTI-SPLIT SYSTEM AND CONTROL METHOD FOR ELECTRONIC EXPANSION VALVE THEREOF 审中-公开
公开(公告)号：EP3324135A1
公开(公告)日：2018-05-23
申请号：EP16823701.4
申请日：2016-04-26
申请人： GD Midea Heating & Ventilating Equipment Co., Ltd. , Midea Group Co., Ltd.
发明人： LUO, Bin , YANG, Kun
IPC分类号： F25B13/00 , F25B41/04 , F24F5/00
CPC分类号： F25B41/062 , F24F5/00 , F25B13/00 , F25B41/04 , F25B2313/0231 , F25B2400/23 , F25B2500/19 , F25B2600/2509 , F25B2600/2513 , F25B2700/191 , Y02B30/72
摘要： A method for controlling an electronic expansion valve of a variable refrigerant flow air conditioning system is disclosed in the present disclosure. The method includes steps as follows: when the VRF air conditioning system operates in a primary heating mode, obtaining a degree of superheat of return air of a compressor, and performing a control on an opening degree of the first electronic expansion valve according to the degree of superheat of return air; judging the degree of superheat of return air and the opening degree of the electronic expansion valve of each refrigerating indoor machine in the plurality of indoor machines; and if the degree of superheat of return air is greater than a first preset degree of superheat and an opening degree of an electronic expansion valve in any refrigerating indoor machine reaches a maximum opening degree, obtaining a target medium pressure value by calculating a refrigerant volume of the refrigerating indoor machine reaching the maximum opening degree, and performing a medium pressure control on the first electronic expansion valve according to the target medium pressure value. According to the method, a reasonable distribution of the refrigerant volume of the refrigerating indoor machine and the outdoor heat exchanger is realized, and a situation of unstable system due to insufficient refrigerant volume in the refrigerating indoor machine is also effectively avoided. A VRF air conditioning system is further disclosed in the present disclosure.

2. 发明公开

EP3477226A1 MULTI-SPLIT SYSTEM AND CONTROL METHOD THEREOF 审中-公开
公开(公告)号：EP3477226A1
公开(公告)日：2019-05-01
申请号：EP17819180.5
申请日：2017-06-23
申请人： GD Midea Heating & Ventilating Equipment Co., Ltd. , Midea Group Co., Ltd.
发明人： YANG, Guozhong , YANG, Kun
IPC分类号： F25B41/04 , F25B49/02
摘要： A multi-split system and a control method thereof are provided. The control method comprises the steps of: obtaining a discharge superheating degree from a compressor (3) and determining whether the discharge superheating degree is less than a first predetermined superheating degree; if the discharge superheating degree is less than the first predetermined superheating degree, further obtaining a pre-valve supercooling degree of a cooling throttle member (21), and determining whether the pre-valve supercooling degree is less than a predetermined supercooling degree; and if the pre-valve supercooling degree is less than the predetermined supercooling degree, controlling the degree of opening of the cooling throttle member (21) to remain unchanged, adjusting a vent target superheating degree of a plurality of indoor units (300) to a first target superheating degree, and controlling an indoor throttle member (21) of the plurality of the indoor units (300) according to the first target superheating degree. The method controls the cooling throttle member (21) to remain unchanged when the pre-valve supercooling degree of the cooling throttle member (21) is low, and controls the indoor cooling units (300) according to the adjusted target superheating degree, thereby rapidly setting the pre-valve supercooling degree of the cooling throttle member (21) while ensuring stable operation of the compressor (3).

3. 发明公开

EP4030132A1 HEAT EXCHANGER FIN, HEAT EXCHANGER, INDOOR UNIT AND AIR CONDITIONER 审中-公开
公开(公告)号：EP4030132A1
公开(公告)日：2022-07-20
申请号：EP20880266.0
申请日：2020-03-02
申请人： GD Midea Heating & Ventilating Equipment Co., Ltd. , Midea Group Co., Ltd.
发明人： ZHOU, Baisong , LUO, Bin , LI, Feng , LI, Zhaohui , YANG, Kun , WU, Lin
IPC分类号： F28F1/12 , F24F13/30
摘要： Disclosed are a heat exchanger fin, a heat exchanger, an indoor unit and an air conditioner. The heat exchanger fin comprises: a fin body (1), wherein the fin body comprises an air outlet contour line (13) arranged on one side and an air inlet contour line (12) arranged on the other side; a plurality of refrigerant pipe mounting holes (11) are provided in the fin body (1); and on a straight line where the curvature radius of the air outlet contour line (13) of the fin body (1) is located, or on a straight line where the curvature radius of the air inlet contour line (12) of the fin body (1) is located, the distance between the air inlet contour line (12) and the air outlet contour line (13) of the fin body (1) is gradually reduced from the middle to two ends of the heat exchanger fin.

4. 发明公开

EP3926244A1 HEATING ASSEMBLY AND AIR CONDITIONER HAVING SAME 有权
公开(公告)号：EP3926244A1
公开(公告)日：2021-12-22
申请号：EP20786904.1
申请日：2020-03-18
申请人： GD Midea Heating & Ventilating Equipment Co., Ltd. , Midea Group Co., Ltd.
发明人： WU, Duode , YI, Tengda , ZHANG, Hao , ZHAN, Lei , LIU, Shuqing , LUO, Bin , YANG, Kun , LIU, Yuan , WANG, Peng
IPC分类号： F24F1/06 , F24F11/89 , F24F11/873 , H05B6/36
摘要： A heating assembly (100) includes a refrigerant heat exchanger (1), an electromagnetic heating body subassembly (2), a heat transfer plate (3) and a supporting plate (4), the refrigerant heat exchanger (1) having a refrigerant passage defined therein, the electromagnetic heating body subassembly (2) being provided on a side of the refrigerant heat exchanger (1), the electromagnetic heating body subassembly (1) including an electromagnetic coil disk (21) and being capable of heating a refrigerant in the refrigerant passage, the heat transfer plate (3) being provided between the refrigerant heat exchanger (1) and the electromagnetic heating body subassembly (2), and the supporting plate (4) being provided at another side of the refrigerant heat exchanger (1).

5. 发明公开

EP3927112A1 QUICK HEATING MODULE AND AIR CONDITIONER 审中-公开
公开(公告)号：EP3927112A1
公开(公告)日：2021-12-22
申请号：EP20787252.4
申请日：2020-03-24
申请人： GD Midea Heating & Ventilating Equipment Co., Ltd. , Midea Group Co., Ltd.
发明人： WU, Duode , WANG, Peng , ZHANG, Hao , ZHAN, Lei , LIU, Shuqing , LUO, Bin , YANG, Kun , LIU, Yuan , YI, Tengda
IPC分类号： H05B6/02 , H05B6/36 , F24F13/00
摘要： Disclosed are a quick heating module (5) and an air conditioner (1000). The quick heating module (5) includes: a refrigerant heat exchanger (54) defining a refrigerant passage; an electromagnetic induction heating member (53) provided at the refrigerant heat exchanger (54); and an alternating magnetic field generator (52) provided close to the electromagnetic induction heating member (53) and emitting an alternating magnetic field to the electromagnetic induction heating member (53).

6. 发明公开

EP3637969A1 HEAT DISSIPATION APPARATUS AND FREQUENCY CONVERTER 审中-公开
公开(公告)号：EP3637969A1
公开(公告)日：2020-04-15
申请号：EP18919708.0
申请日：2018-12-03
申请人： GD Midea Heating & Ventilating Equipment Co., Ltd. , Midea Group Co., Ltd.
发明人： CHEN, Tujin , CAO, Dan , YANG, Kun
IPC分类号： H05K7/20
摘要： Provided are a heat dissipation apparatus (1) and a frequency converter. The heat dissipation apparatus (1) includes: a base plate (10); a plurality of flow channels (20), arranged in the base plate (10) and respectively penetrating a first side wall (102) and a second side wall (104) of the base plate (10) in a non-overlapping manner; an inlet flow guide assembly (30), connected to the first side wall (102) and in communication with the plurality of flow channels (20); and an outlet flow guide assembly (40), connected to the second side wall (104) and in communication with the plurality of flow channels (20).

7. 发明公开

EP3623726A1 HEAT PUMP SYSTEM AND CONTROL METHOD THEREFOR 有权
公开(公告)号：EP3623726A1
公开(公告)日：2020-03-18
申请号：EP19812899.3
申请日：2019-06-03
申请人： HEFEI MIDEA HEATING & VENTILATING EQUIPMENT CO., LTD. , GD Midea Heating & Ventilating Equipment Co., Ltd.
发明人： LUO, Bin , LI, Yuanyang , LIU, Shuqing , YANG, Kun , ZHAN, Lei
IPC分类号： F25B30/02 , F25B39/00
摘要： A heat pump system (1) and a control method therefor are provided. The heat pump system (1) includes an outdoor heat exchanger (10) and an electromagnetic heating assembly (20). The electromagnetic heating assembly (20) includes an induction heating sheet (200), an insulation plate (210), and an electromagnetic induction wire coil (220). The induction heating sheet (200) is in contact with the outdoor heat exchanger (10), the electromagnetic induction wire coil (220) is attached to the insulation plate (210), the insulation plate (210) is connected to the outdoor heat exchanger (10) or the induction heating sheet (200), the induction heating sheet (200) is coupled with the electromagnetic induction wire coil (220) by communication.

8. 发明公开

EP3623713A1 METHOD AND DEVICE FOR CONTROLLING AIR CONDITIONER AND AIR CONDITIONER HAVING SAME 审中-公开
公开(公告)号：EP3623713A1
公开(公告)日：2020-03-18
申请号：EP19812658.3
申请日：2019-06-03
申请人： HEFEI MIDEA HEATING & VENTILATING EQUIPMENT CO., LTD. , GD Midea Heating & Ventilating Equipment Co., Ltd.
发明人： ZHENG, Chunyuan , TAN, Zhijun , YANG, Kun , WANG, Mingren
IPC分类号： F24F11/64 , F24F11/84 , F24F140/00
摘要： The present disclosure discloses an air conditioner controlling method and apparatus, as well as an air conditioner having the same. The air conditioner operates in a low temperature hybrid mode. The method includes: determining that an outdoor heat exchanger of the air conditioner operates in an evaporator state; acquiring a state signal of a refrigerant of an indoor refrigerating unit; and adjusting an opening degree of an electronic expansion valve of an outdoor unit according to the state signal of the indoor refrigerating unit. This method may adjust the opening degree of the electronic expansion valve of the outdoor unit according to the state signal of the indoor refrigerating unit when the outdoor heat exchanger of the air conditioner operates in the evaporator state, thereby effectively improving the reliability of control, broadening the reliable operation range of the system, and reasonably distributing the refrigerant between the indoor refrigerating unit and the outdoor unit under a low temperature working condition.

9. 发明公开

EP4328509A1 INDOOR UNIT FILTER SCREEN DETECTION METHOD, INDOOR UNIT, AIR CONDITIONER, AND READABLE STORAGE MEDIUM 审中-实审
公开(公告)号：EP4328509A1
公开(公告)日：2024-02-28
申请号：EP22847863.2
申请日：2022-03-24
申请人： GD Midea Heating & Ventilating Equipment Co., Ltd. , HEFEI MIDEA HEATING & VENTILATING EQUIPMENT CO., LTD.
发明人： YANG, Kun , ZHOU, Baisong , ZHUANG, Liqiang
IPC分类号： F24F11/39 , F24F11/52 , F24F11/64 , F24F11/77 , F24F3/16 , F24F13/28 , F24F110/40
摘要： The present application provides an indoor unit filter screen detection method, an indoor unit, an air conditioner, and a readable storage medium. The indoor unit filter screen detection method comprises: obtaining a first resistance difference value of a filter screen under a set air volume value; determining a first outlet static pressure value during the operation of the indoor unit; and determining the filth blockage condition of the filter screen according to a numerical relationship between the first outlet static pressure value and a set outlet static pressure value, and the first resistance difference value. In the present application, the filth blockage condition of the filter screen is detected according to the numerical relationship between the first resistance difference value of the filter screen, and the first outlet static pressure value and the set outlet static pressure value, such that the filth blockage condition of the filter screen can be determined in time during the operation of the indoor unit.

10. 发明公开

EP4328508A1 CONTROL METHOD AND CONTROL APPARATUS FOR AIR CONDITIONER, AND AIR CONDITIONER AND READABLE STORAGE MEDIUM 审中-实审
公开(公告)号：EP4328508A1
公开(公告)日：2024-02-28
申请号：EP22836537.5
申请日：2022-03-24
申请人： GD Midea Heating & Ventilating Equipment Co., Ltd. , Hefei Midea Heating & Ventilating Equipment Co., Ltd.
发明人： YANG, Kun , ZHOU, Baisong
IPC分类号： F24F11/38 , F24F11/43 , F24F11/61 , F24F11/64 , F24F110/10 , F24F140/20
摘要： Provided in the present application are a control method and control apparatus for an air conditioner, and an air conditioner and a readable storage medium. In the control method for an air conditioner, the air conditioner comprises an indoor unit and at least two temperature sensors, wherein the at least two temperature sensors are used for acquiring at least two corresponding temperature parameter values in the indoor unit. The control method for an air conditioner comprises: acquiring a fault parameter value of at least two temperature parameter values on the basis of any temperature sensor of at least two temperature sensors being in a fault state; according to a running parameter of an air conditioner, obtaining a parameter replacement value corresponding to the fault parameter value; and controlling the running of the air conditioner according to the parameter replacement value. By means of the present application, when there is a fault in a temperature sensor in an indoor unit of an air conditioner, the indoor unit of the air conditioner can still keep running, such that it is ensured that the air conditioner can still operate during the process of waiting for maintenance, thereby reducing the shutdown duration of the air conditioner during the process of waiting for maintenance.

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