公开(公告)号：EP3896291A1

公开(公告)日：2021-10-20

申请号：EP21167369.4

申请日：2021-04-08

申请人： York Guangzhou Air Conditioning and Refrigeration Co., Ltd. ,  Johnson Controls Technology Company

发明人： YUAN, Bin ,  WU, Chenggang ,  MA, Xiaokui ,  WANG, Li ,  ZHU, Jian

IPC分类号： F04D29/38 ,  F04D29/66

摘要： Disclosed in the present application is a blade and an axial flow impeller using same. The blade comprises a blade tip, a blade root, a leading edge, a trailing edge, an upper surface and a lower surface. The upper surface and lower surface are disposed opposite each other; the blade tip, the blade root, the leading edge and the trailing edge surround the upper surface and the lower surface, and connect the upper surface and the lower surface. The blade is rotatable about a rotation axis, the rotation axis being perpendicular to a normal plane. The blade tip comprises a blade tip base part and a blade tip trailing part, the blade tip base part being close to the leading edge, and the blade tip trailing part being close to the trailing edge and being bent upwards relative to the blade tip base part. An angle of attack of a chord of the blade tip trailing part is greater than an angle of attack of a chord of the blade tip base part, wherein the angle of attack is an acute included angle between the chord and the normal plane. The blade of the present application can provide a large air volume, and has higher static pressure and higher efficiency.

公开(公告)号：EP3926247A1

公开(公告)日：2021-12-22

申请号：EP19892060.5

申请日：2019-08-01

申请人： York Guangzhou Air Conditioning and Refrigeration Co., Ltd. ,  Johnson Controls Technology Company

发明人： YU, Demao ,  WU, Shuang

IPC分类号： F24F5/00 ,  F25B45/00

摘要： Disclosed is a refrigeration system, comprising refrigeration system components, a connecting pipeline, a switch structure, and discharging channels (123, 124; 623, 624). The refrigeration system components comprise three heat exchangers (101; 102; 112). The refrigeration system components can be connected via the connecting pipeline, and are combined into different working systems via the switch structure. When two heat exchangers are selected by the switch structure to form one working system and the saturation temperature corresponding to the internal pressure of the unselected heat exchanger is higher than the medium or environment temperature of the heat exchanger, a liquid refrigerant accumulates inside the non-working heat exchanger. According to the refrigeration system, the switch structure is arranged at either end of the non-working heat exchanger, so that the non-working heat exchanger is isolated from a working system cycle, and under the condition where the pressure at a low-pressure side (C; Q) of the working system is less than the internal pressure of the non-working heat exchanger, additional discharging channels (123, 124; 623, 624) communicate with the non-working heat exchanger and the low-pressure side (C; Q) of the working system, so that the refrigerant accumulating in the non-working heat exchanger is transferred to the system cycle, avoiding a lack of refrigerant in the system cycle.

公开(公告)号：EP4194703A1

公开(公告)日：2023-06-14

申请号：EP21852892.5

申请日：2021-07-23

申请人： York Guangzhou Air Conditioning and Refrigeration Co., Ltd. ,  Johnson Controls Tyco IP Holdings LLP

发明人： WU, Chenggang ,  YUAN, Bin ,  MA, Xiaokui ,  WANG, Li ,  ZHU, Jian

IPC分类号： F04D29/34 ,  F04D29/38

摘要： A fan, comprising blades (102), an upper hub (111), and a lower hub (112). Each blade (102) comprises a connecting part (211). The connecting part (211) is clamped between a lower surface of the upper hub (111) and an upper surface of the lower hub (112). The lower surface of the upper hub (111) is provided with an upper hub connecting area, and the upper surface of the lower hub (112) is provided with a lower hub connecting area. An upper surface and a lower surface of the connecting part (211) are separately provided with a junction surface extending from the connecting part (211). The lower surface of the upper hub (111) and the upper surface of the lower hub (112) are separately provided with a matching surface matching the junction surface. The junction surface and the matching surface are arranged in the radial direction and/or circumferential direction of the upper hub (111) and the lower hub (112), and are configured to match with each other to impede the movement of at least two blades (102) in the circumferential direction and/or radial direction with respect to the upper hub (111) and the lower hub (112). The fan structure can prevent the movement of the blades (102) with respect to the upper hub (111) and the lower hub (112). The connecting part (211) and the fan body (201) are not easy to break and can be easily assembled, such that better stability can be ensured while the cost is low.

公开(公告)号：EP4177542A1

公开(公告)日：2023-05-10

申请号：EP21838723.1

申请日：2021-07-05

申请人： York Guangzhou Air Conditioning and Refrigeration Co., Ltd. ,  Johnson Controls Tyco IP Holdings LLP

发明人： LI, Hailong ,  WANG, Kan ,  ZHAO, Weizheng ,  MA, Lijun

IPC分类号： F25B30/02 ,  F25B49/02 ,  F25B41/20 ,  F25B1/00 ,  F24H4/02 ,  F25B13/00 ,  F25B30/06 ,  F25B43/00 ,  F25B29/00 ,  F25B9/00

摘要： The present application provides a heat pump system. The heat pump system comprises a main circulating refrigerant loop, an auxiliary circulating refrigerant loop, and a refrigerant management system; the main circulating refrigerant loop comprises a main compressor, a first main heat exchanger, a main throttling device, and a second main heat exchanger, the main compressor is configured to allow a refrigerant in the main circulating refrigerant loop to circulate in a main circulating refrigeration working condition flow direction or circulate in a main circulating heating working condition flow direction. The auxiliary circulating refrigerant loop comprises an auxiliary compressor, a first auxiliary heat exchanger, an auxiliary throttling device, and a second auxiliary heat exchanger; the auxiliary compressor is configured to allow a refrigerant in the auxiliary circulating refrigerant loop to circulate in an auxiliary circulating heating working condition flow direction. The refrigerant management system is controllably connected to or disconnected from the main circulating refrigerant loop and the auxiliary circulating refrigerant loop, separately; the refrigerant management system is configured to be capable of distributing a refrigerant used for the main circulating refrigerant loop to the auxiliary circulating refrigerant loop. Less refrigerant is used in the heat pump system provided by the present application.

公开(公告)号：EP3859164A1

公开(公告)日：2021-08-04

申请号：EP19865164.8

申请日：2019-09-24

申请人： York Guangzhou Air Conditioning and Refrigeration Co., Ltd. ,  Johnson Controls Technology Company

发明人： YUAN, Bin ,  WANG, Li ,  WU, Chenggang ,  ZHU, Jian

IPC分类号： F04D29/38 ,  F04D29/66

摘要： The present application discloses a blade, comprising a blade tip, a blade root, a leading edge, and a trailing edge, wherein the leading edge and the trailing edge each extend from the blade tip to the blade root; the blade may rotate around a rotation axis, and the rotation axis and a normal plane of the rotation axis perpendicularly intersect at the foot of the perpendicular; a projection of the leading edge on the normal plane along the rotation axis is a first curve, and the first curve has an even number of inflection points. The blade of the present application can reduce noise and improve aerodynamic performance when the blade rotates.

公开(公告)号：EP4332465A1

公开(公告)日：2024-03-06

申请号：EP22794815.5

申请日：2022-04-24

申请人： York Guangzhou Air Conditioning and Refrigeration Co., Ltd. ,  Johnson Controls Tyco IP Holdings LLP

发明人： QIU, Xiening ,  XIAO, Tianlong ,  WANG, Yong ,  YUAN, Bin

IPC分类号： F25B30/06

摘要： The present application provides a heat pump system, comprising a compressor, a first heat exchanger, a second heat exchanger, and a valve device. A first connecting port of the valve device is connected to an exhaust port of the compressor, a second connecting port of the valve device is connected to a first port of the second heat exchanger, a third connecting port of the valve device is connected to an air suction port of the compressor, a fourth connecting port of the valve device is connected to a first port of the first heat exchanger, and a fifth connecting port of the valve device is connected to a fourth port of the first heat exchanger. The valve device is configured to: when the heat pump system is operating in a refrigeration mode, the valve device communicates the third connecting port thereof with the air suction port of the compressor, so that the first heat exchanger acts as a falling film evaporator; and when the heat pump system is operating in a heating mode, the valve device communicates the first connecting port thereof with the exhaust port of the compressor, so that the first heat exchanger acts as a condenser.

公开(公告)号：EP4191166A1

公开(公告)日：2023-06-07

申请号：EP21849879.8

申请日：2021-06-17

申请人： York Guangzhou Air Conditioning and Refrigeration Co., Ltd. ,  Johnson Controls Tyco IP Holdings LLP

发明人： MEI, Lu ,  SU, Xiuping ,  YANG, Yao ,  PENG, Jianping

IPC分类号： F25B39/02 ,  F28D7/16 ,  F28F9/02

摘要： The present application provides an evaporator, including a heat exchange tube set and a distribution device. The heat exchange tube set includes a plurality of heat exchange tubes. The distribution device is provided on one end of the length direction of the heat exchange tube set such that the distribution device can distribute a refrigerant through heat exchange tube inlets at the end portions of the plurality of heat exchange tubes. The distribution device includes a distribution device housing, at least one receiving port, and at least one distribution member. The receiving port is provided on the distribution device housing, and the distribution member is provided in the distribution device housing. The distribution device housing is disposed around the heat exchange tube inlets at the end portions of the heat exchange tube set and seals the heat exchange tube inlets. The distribution member can receive the refrigerant through the receiving port. The distribution member is provided with a plurality of distribution ports such that the refrigerant in the distribution member can be sprayed through the plurality of distribution ports towards the heat exchange tube inlets of the heat exchange tube set. The evaporator of the present application can uniformly distribute the refrigerant to the plurality of heat exchange tubes of the heat exchange tube set by using a simple structure, thereby effectively ensuring the heat exchange efficiency of the evaporator.

公开(公告)号：EP4187177A1

公开(公告)日：2023-05-31

申请号：EP21847138.1

申请日：2021-07-16

申请人： York Guangzhou Air Conditioning and Refrigeration Co., Ltd. ,  Johnson Controls Tyco IP Holdings LLP

发明人： QIU, Xiening ,  XIAO, Tianlong ,  LV, Lue ,  ZHANG, Xiaoyan ,  XU, Jingjing

IPC分类号： F25B41/20

摘要： A heat pump system is provided. The heat pump system comprises a compressor, a first heat exchanger, a second heat exchanger, a third heat exchanger and a six-way valve. The compressor comprises an air suction port and an air discharge port. The first heat exchanger is arranged in a first circulation path, the second heat exchanger is arranged in a second circulation path, and the third heat exchanger is arranged in a third circulation path, wherein the first circulation path, the second circulation path and the third circulation path are parallel paths. A first end of the first circulation path, a first end of the second circulation path and a first end of the third circulation path are connected to the six-way valve and are in controllable communication with the air suction port and the air discharge port of the compressor by means of the six-way valve. A second end of the first circulation path, a second end of the second circulation path and a second end of the third circulation path are connected to a common path converging point. The components of the heat pump system in the present application have simple pipelines, have a high degree of integration, are not difficult to mount, and have a small pressure drop during air suction and discharge, and the control logic therefor is simple.

公开(公告)号：EP3816454A1

公开(公告)日：2021-05-05

申请号：EP19800854.2

申请日：2019-05-08

申请人： York Guangzhou Air Conditioning and Refrigeration Co., Ltd. ,  Johnson Controls Technology Company

发明人： YUAN, Bin ,  FENG, Shifeng ,  WANG, Hongdan ,  WU, Chenggang

IPC分类号： F04D29/38

摘要： A blade (112) and an impeller (100) using same, the blade (112) comprising: an upper surface and a lower surface, the upper surface being a pressure surface (212), and the lower surface being a suction surface (214); the pressure surface (212) and the suction surface (214) extending from a blade tip (216) to a blade root (218) and extending from a front edge (222) to a tail edge (220); a front portion and a rear portion, the front portion being close to the blade tip (216), and the rear portion being close to the blade root (218); and a bent portion (262), the bent portion (262) arching from the pressure surface (212) towards the suction surface (214); the bent portion (262) having the lowest point (E) in a radial cross section of the blade (112), and a connecting line of a plurality of lowest points (E) extending in a direction from the front edge (222) to the tail edge (220). The blade can prevent flow separation on the blade surfaces, improve the detached eddy on the surfaces, and reduce the blade tip leakage, thereby improving the blade performance and reducing operation noise.

公开(公告)号：EP3376128A1

公开(公告)日：2018-09-19

申请号：EP18160581.7

申请日：2018-03-07

申请人： Johnson Controls Technology Company ,  York Guangzhou Air Conditioning and Refrigeration Co., Ltd.

发明人： YU, Peter ,  WU, Vincent

IPC分类号： F24F11/65 ,  F24F11/54 ,  F24F11/46 ,  F24F11/86 ,  F24F110/10 ,  F24F140/20 ,  F24F140/50

CPC分类号： F24F11/65 ,  F24F11/46 ,  F24F11/54 ,  F24F11/80 ,  F24F11/86 ,  F24F2110/10 ,  F24F2140/20 ,  F24F2140/50 ,  G05B15/02

摘要： The present disclosure provides an air-conditioning system and a method for controlling the same. The air-conditioning system comprises a modular set including a plurality of frequency conversion modular units. The method comprises steps of: setting an optimized load ratio range for each of the plurality of frequency conversion modular units, within the optimized load ratio range, an operating energy efficiency of each of the plurality of frequency conversion modular units is greater than or equal to a predetermined energy efficiency value; inputting an energy adjustment amount; and setting different operations for the modular set according to the energy adjustment amount, including: a load operation; or a unload operation, wherein in the load operation, frequency adjustment amounts of the plurality of frequency conversion modular units are determined based on the energy adjustment amount and operating positions of the respective frequency conversion modular units participating in operating among the plurality of frequency conversion modular units within the optimized load ratio range, or in the unload operation, frequency adjustment amounts of the plurality of frequency conversion modular units are determined based on the energy adjustment amount and operating positions of respective frequency conversion modular units participating in operating among the plurality of frequency conversion modular units within the optimized load ratio range; and the load operation or the unload operation causes the modular set to operate within the optimized load ratio range.