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21. 发明申请

US20190242630A1 FALLING-FILM EVAPORATOR SUITABLE FOR LOW PRESSURE REFRIGERANT 审中-公开
公开(公告)号：US20190242630A1
公开(公告)日：2019-08-08
申请号：US16387364
申请日：2019-04-17
申请人： Johnson Controls Technology Company , York (Wuxi) Air Conditioning and Refrigeration Co., Ltd. , Johnson Controls Building Efficiency Technology (Wuxi) Co., Ltd.
发明人： Xiuping Su , Li Wang , Jinliang Li , Fang Xue
IPC分类号： F25B39/02 , F28D5/02 , F28D7/16
CPC分类号： F25B39/02 , F25B2339/0242 , F25B2400/23 , F25B2500/18 , F28D5/02 , F28D7/16 , F28D2021/0071
摘要： Embodiments of the present disclosure are directed toward a falling-film evaporator that includes an evaporator cylinder, a mist eliminator disposed in the evaporator cylinder, a dispenser disposed in the evaporator cylinder, a liquid baffle disposed in the evaporator cylinder, a first chamber formed at least partially by the mist eliminator and the liquid baffle on a first side of the evaporator cylinder below the mist eliminator, a gas returning chamber formed at least partially by the mist eliminator and the liquid baffle on a second side of the evaporator cylinder above the mist eliminator, a gas-liquid separation chamber formed at least partially by the dispenser at an upper portion of the first chamber, and an evaporation chamber formed at least partially by the dispenser at a lower portion of the first chamber, and where the gas returning chamber is in fluid communication with the evaporation chamber.

22. 发明申请

US20220090601A1 SCREW COMPRESSOR AND CONTROL METHOD THEREFOR 有权
公开(公告)号：US20220090601A1
公开(公告)日：2022-03-24
申请号：US17421699
申请日：2019-08-20
申请人： York (Wuxi) Air Conditioning and Refrigeration Co., Ltd. , Johnson Controls Tyco IP Holdings LLP
发明人： Yu Zhu , Zhengxiang Yu , Fanfei Zeng , Fengzhi Zhang
IPC分类号： F04C18/16 , F04C28/12 , F04C28/08
摘要： A screw compressor (100), comprising a screw rotor (110) and a spool valve (120). The screw rotor (110) comprises a suction head end (111) and an exhaust tail end (112). Gas is sucked in from the suction head end (111) and compressed gas is discharged from the exhaust tail end (112). The spool valve (120) comprises a working side (125) for sealing a compression chamber of the screw rotor (110). The working side (125) comprises a spool valve head end (121) and a spool valve tail end (122) and can do a reciprocating motion along the axis direction of the screw rotor (110). When the spool valve (120) moves to a suction capacity adjusting position (240), the spool valve head end (121) is located at the inner side of the suction head end (111) of the screw rotor (110), and a suction capacity adjusting distance (D2) is formed between the spool valve head end (121) and the suction head end (111) so that the suction capacity of the screw compressor is adjusted. The suction capacity of the screw compressor (100) can be adjusted by means of the spool valve (120), so that the problem of motor temperature and exhaust gas temperature limits of conventional variable frequency screw sets is effectively solved and the operational range and the load regulation ability of the screw compressor are expanded.

23. 发明授权

US10982885B2 Falling-film evaporator suitable for low pressure refrigerant 有权
公开(公告)号：US10982885B2
公开(公告)日：2021-04-20
申请号：US16387364
申请日：2019-04-17
申请人： Johnson Controls Technology Company , York (Wuxi) Air Conditioning and Refrigeration Co., Ltd. , Johnson Controls Building Efficiency Technology (Wuxi) Co., Ltd.
发明人： Xiuping Su , Li Wang , Jinliang Li , Fang Xue
IPC分类号： F25B39/02 , F28D5/02 , F28D7/16 , F28D21/00
摘要： A falling-film evaporator includes an evaporator cylinder, a mist eliminator disposed in the evaporator cylinder, a dispenser disposed in the evaporator cylinder, a liquid baffle disposed in the evaporator cylinder, a first chamber formed at least partially by the mist eliminator and the liquid baffle on a first side of the evaporator cylinder below the mist eliminator, a gas returning chamber formed at least partially by the mist eliminator and the liquid baffle on a second side of the evaporator cylinder above the mist eliminator, a gas-liquid separation chamber formed at least partially by the dispenser at an upper portion of the first chamber, and an evaporation chamber formed at least partially by the dispenser at a lower portion of the first chamber, and where the gas returning chamber is in fluid communication with the evaporation chamber.

24. 发明申请

US20190386483A1 IGBT SHORT-CIRCUIT DETECTION AND PROTECTION CIRCUIT AND IGBT-BASED CONTROLLABLE RECTIFIER CIRCUIT 审中-公开
公开(公告)号：US20190386483A1
公开(公告)日：2019-12-19
申请号：US16452313
申请日：2019-06-25
申请人： Johnson Controls Technology Company , Johnson Controls Air Conditioning and REfrigeration (Wuxi) Co., Ltd. , York (Wuxi) Air Conditioning and Refrigeration Co., Ltd.
发明人： Yu Miao , Yongquan Xie , Chengzhi Li , Guobin Shao
IPC分类号： H02H7/125 , H03K17/082 , H02M7/217
摘要： An IGBT short-circuit detection and protection circuit, comprising: a driving unit, the output end thereof outputting a PWM driving signal and being connected to gate ends of a first IGBT (IGBT1) and a second IGBT (IGBT2), so as to simultaneously control the turning ON/OFF of the first IGBT and the second IGBT; a comparing unit, comprising a threshold pin and a detection pin (Vdesat), the threshold pin being connected to a threshold voltage, the detection pin being connected by means of a first diode (D1) and a second diode (D3) to collectors (C) of the first IGBT and the second IGBT, respectively, the detection pin supplying a detection current to the first diode and the second diode, cathodes of the first diode and the second diode being connected to the collectors of the first IGBT and the second IGBT, respectively; when the voltage at the detection pin is higher than the threshold voltage, the driving unit controlling the first IGBT and the second IGBT to be turned off. The IGBT short-circuit detection protection circuit achieves bidirectional short-circuit protection of two IGBTs in inverse series connection, without requiring an additional protection circuit.

25. 发明授权

US10426058B2 Cold plate assembly for electrical cabinet 有权
公开(公告)号：US10426058B2
公开(公告)日：2019-09-24
申请号：US15654457
申请日：2017-07-19
申请人： Johnson Controls Technology Company , Johnson Controls Air Conditioning and Refrigeration (Wuxi) Co., Ltd. , York (Wuxi) Air Conditioning and Refrigeration Co., Ltd.
发明人： Zhuoqi Wu
IPC分类号： H05K7/20 , H01L23/473 , F28D1/03
摘要： Embodiments of the present disclosure are directed to a cold plate assembly for an electrical cabinet, including: a main body part, a sealing part, and a mounting part. The main body part is provided with a channel for the circulation of a liquid cooling medium and an accommodation groove located on a first upper surface of the main body part. The sealing part is disposed in the accommodation groove and the mounting part is located above the sealing part. A lower surface of the mounting part faces the main body part, and a second upper surface of the mounting part is configured to mount an electronic device to be cooled.

26. 发明申请

US20180027697A1 COLD PLATE ASSEMBLY FOR ELECTRICAL CABINET 有权
公开(公告)号：US20180027697A1
公开(公告)日：2018-01-25
申请号：US15654457
申请日：2017-07-19
申请人： Johnson Controls Technology Company , Johnson Controls Air Conditioning and Refrigeration (Wuxi) Co., Ltd. , York (Wuxi) Air Conditioning and Refrigeration Co., Ltd.
发明人： Zhuoqi Wu
IPC分类号： H05K7/20 , H01L23/473
摘要： Embodiments of the present disclosure are directed to a cold plate assembly for an electrical cabinet, including: a main body part, a sealing part, and a mounting part. The main body part is provided with a channel for the circulation of a liquid cooling medium and an accommodation groove located on a first upper surface of the main body part. The sealing part is disposed in the accommodation groove and the mounting part is located above the sealing part. A lower surface of the mounting part faces the main body part, and a second upper surface of the mounting part is configured to mount an electronic device to be cooled.

27. 发明申请

US20220349634A1 Oil Separation Device, Condenser, and Refrigeration System Using Oil Separation Device or Condenser 有权
公开(公告)号：US20220349634A1
公开(公告)日：2022-11-03
申请号：US17764945
申请日：2020-09-29
申请人： York (Wuxi) Air Conditioning and Refrigeration Co., Ltd , Johnson Controls Tyco IP Holdings LLP
发明人： Shicai Ji , Xiuping Su , Shengmei Yang , Ronghua Yang , Jing Chen
IPC分类号： F25B43/02 , F25B39/04
摘要： Disclosed are an oil separation device (1283) and a condenser (130-1130) with an oil separation function, and a refrigeration system (100, 1200) using same. The oil separation device (1283) or the condenser (130-1130) comprises: a shell (201, 1301) comprising an oil separation cavity (315, 1315), a first refrigerant inlet (221, 1221), a second refrigerant inlet (222, 1222), a first flow guide channel (445-2145), and a second flow guide channel (446-2146), wherein refrigerant gas flowing through the two flow guide channels can be mixed. When the refrigeration system (100, 1200) comprises two compressors (108, 1208, 109, 1209) with different displacements, the requirement of filtering and separating a gaseous refrigerant and lubricating oil can be met without the need for designing the size of the oil separation cavity (315, 1315) in accordance with large-displacement compressors (109, 1209), and the size is small.

28. 发明申请

US20210318040A1 FALLING FILM EVAPORATOR 有权
公开(公告)号：US20210318040A1
公开(公告)日：2021-10-14
申请号：US17268385
申请日：2019-08-13
申请人： York (Wuxi) Air Conditioning and Refrigeration Co., Ltd. , Johnson Controls Technology Company
发明人： Xiuping Su , Shenglong Wang , Shimin Sheng , Minnan Fan
IPC分类号： F25B39/02
摘要： A falling film evaporator (100), a housing (101) thereof being accommodated with a heat exchange tube (304), a perforated plate (205) and a spraying tube (202), the perforated plate (205) being provided between the spraying tube (202) and the heat exchange tube (304), such that refrigerant sprayed from the spraying tube (202) is sprayed onto the surface of the heat exchange tube (304) by means of distribution of the perforated plate (205); spraying openings (301) on the spraying tube (202) have a strip shape, and the extension direction of the openings is perpendicular to the length direction of the spraying tube (202). By means of configuring the length direction of the spraying tube (202) to be substantially perpendicular to the length direction of the heat exchange tube (304), refrigerant sprayed from the spraying openings (301) flows substantially in the length direction of the housing (101), the flow path of the refrigerant being lengthened, avoiding uneven spraying on the surface of the heat exchange tube (304).

29. 发明申请

US20220290906A1 Load Balancing Method for Two Compressors 有权
公开(公告)号：US20220290906A1
公开(公告)日：2022-09-15
申请号：US17764952
申请日：2020-09-25
申请人： York (Wuxi) Air Conditioning and Refrigeration Co.,Ltd. , Johnson Controls Tyco IP Holdings LLP
发明人： Haifeng Cai , Xijiao Ma , Yuqian Liu , Chen Zhu
IPC分类号： F25B49/02 , F25B7/00
摘要： A load balancing method for two compressors. The two compressors are used in a refrigeration system and are driven coaxially by the same driving device. The method comprises the steps of obtaining parameters, determining balance, and controlling start/stop states. The parameters in the step of obtaining parameters are parameters related to the two compressors, such as a compressor suction side flow rate, or exhaust side flow rate, or suction side temperature; the step of determining balance comprises determining, on the basis of the obtained parameters related to the two compressors, whether load is balanced between the two compressors; the step of controlling start/top states comprises controlling the start/stop states of the two compressors according to whether the load is balanced. The method can monitor the load balance state of two compressors that are coaxially driven, thereby effectively avoiding failure of the refrigeration system caused by unbalanced loads of the compressors.

30. 发明申请

US20210310705A1 CONDENSER 有权
公开(公告)号：US20210310705A1
公开(公告)日：2021-10-07
申请号：US17263844
申请日：2019-07-26
申请人： York (Wuxi) Air Conditioning and Refrigeration Co., Ltd. , Johnson Controls Technology Company
发明人： Lu Mei , Xiuping Su
IPC分类号： F25B39/04 , F28D7/16
摘要： A condenser (100), comprising a shell (112), an inlet pipe (120), and an anti-impact plate (204). The shell (112) has an accommodating cavity (202). The inlet pipe (120) is a circular pipe having a gradually increasing inner diameter from the inlet to the outlet. The inlet pipe (120) is arranged to pass through the upper end of the shell (112), the outlet of the inlet pipe (120) being accommodated in the accommodating cavity (202). The anti-impact plate (204) is accommodated in the accommodating cavity (202), and the anti-impact plate (204) is positioned below the outlet of the inlet pipe (120). There is a gap between the anti-impact plate (204) and the outlet through which fluid flowing from the outlet can flow. The condenser (100) can reduce the friction loss and local resistance of the refrigerant gas flowing into the inlet pipe (120), such that the dynamic pressure of the refrigerant gas entering the condenser (100) is partially converted into static pressure, and reduce the static pressure loss of the refrigerant gas entering the cylinder from the inlet, thereby increasing the condensing pressure of the refrigerant gas in the condenser (100) to enhance the heat exchange performance.

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