Patents Assigned to GUANGDONG MEIZHI COMPRESSOR CO., LTD.
  • Patent number: 12129930
    Abstract: A nut, an electronic expansion valve, a stop structure of the electronic expansion valve, and a refrigeration device are provided. The nut has a pipe body and a connection seat. An outer peripheral wall of a first end of the pipe body is provided with a limiting snap protrusion. The connection seat is connected to the first end of the pipe body. A first avoidance interval is provided between the limiting snap protrusion and the connection seat for installing a first stop of the spring guide rail.
    Type: Grant
    Filed: May 20, 2022
    Date of Patent: October 29, 2024
    Assignee: GUANGDONG MEIZHI COMPRESSOR CO., LTD.
    Inventors: Longhua Huang, Chao Chen, Mao Yang, Bo Jiang
  • Patent number: 12110890
    Abstract: A rotary compressor and a refrigeration cycle device are provided. The rotary compressor includes a housing, an exhaust pipe and a suction pipe. The housing accommodates a motor and a compression mechanism. The exhaust pipe is communicated with a high-pressure side of the refrigeration cycle device and coupled to the housing. The suction pipe is communicated with a low-pressure side of the refrigeration cycle device and coupled to the compression mechanism. The compression mechanism has a bypass device. When the motor is stopped, gas of the housing flows into the suction pipe or a low-pressure circuit communicated with the suction pipe.
    Type: Grant
    Filed: September 27, 2021
    Date of Patent: October 8, 2024
    Assignee: GUANGDONG MEIZHI COMPRESSOR CO., LTD.
    Inventors: Masao Ozu, Bin Gao, Ling Wang
  • Patent number: 12085079
    Abstract: A compressor and a refrigeration system are provided. The compressor has a shell, an air cylinder assembly and a pressure relief device. The shell has a containing cavity. The air cylinder assembly is disposed in the containing cavity, and has an air suction cavity and a pressure relief channel. The pressure relief channel communicates with the air suction cavity and the containing cavity, and has a pressure relief opening. The pressure relief device is connected with the air cylinder assembly. The pressure relief device moves in the axis direction of the pressure relief channel, so as to open or close the pressure relief opening.
    Type: Grant
    Filed: May 26, 2022
    Date of Patent: September 10, 2024
    Assignee: GUANGDONG MEIZHI COMPRESSOR CO., LTD.
    Inventors: Bin Gao, Qiang Gao, Yanhai Peng, Gaimin Li
  • Patent number: 12049897
    Abstract: A baffle plate for a compressor, a compressor, and refrigeration apparatus are provided. The baffle plate has a plate body, a through hole and a connection part. The through hole is formed in the plate body. The plate body extends from the through hole in a direction deviating from the axis of the through hole. The connection part is connected with the plate body and is used for connecting the plate body to a non-rotating member. A fixed baffle plate is arranged in the compressor, to physically block the gas flow and form a space for stabilizing the refrigerant oil or lubricant oil on one side of the baffle plate corresponding to the oil sump. The space can isolate the disturbance from spiral flow of a lower cavity to the oil sump caused by the rotation of the motor when the compressor operates.
    Type: Grant
    Filed: December 20, 2021
    Date of Patent: July 30, 2024
    Assignee: GUANGDONG MEIZHI COMPRESSOR CO., LTD.
    Inventors: Yang Li, Hongjun Cao, Song Zhu
  • Patent number: 12040672
    Abstract: A motor for a rotary compressor, and a compressor and an air conditioner having the motor, are disclosed. The motor includes a stator core and a rotor core. The stator core has a through-hole in a center thereof. The stator core is provided with a plurality of circumferentially spaced stator teeth, and the number of stator teeth is M. The rotor core is rotatably disposed in the through-hole. The rotor core is provided with a plurality of circumferentially spaced rotor slots, and the number of the rotor slots is N, wherein 2?N?M?6. A cross-sectional area of the stator core is denoted as S, and a distance between two endpoints of two radially opposite curved segments of an outer edge of the cross section is denoted as L, wherein 0.93?(4*S)/(3.14*L2)?0.96.
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: July 16, 2024
    Assignee: GUANGDONG MEIZHI COMPRESSOR CO., LTD.
    Inventors: Xiaohua Qiu, Dong Xiang, Zunmu Zhang, Dejin Zhang
  • Patent number: 12021414
    Abstract: A rotor, a motor and a compressor are provided. The rotor has multiple first punches and multiple second punches, which are stacked to form a rotor core of the rotor. Multiple openings are provided in each of the first punches and second punches along a circumferential direction of the rotor. The openings divide the first punches and the second punches into a rotor yoke and multiple pole caps. The pole caps are arranged around the outer circumference of the rotor yoke. The openings extend in an axial direction of the rotor core to form a plurality of slots. Multiple magnets are arranged in the slots in a one-to-one correspondence. Each first punch includes one or more connecting ribs. Each connecting rib is disposed between adjacent two pole caps. At least two of the openings of each second punch communicate with each other.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: June 25, 2024
    Assignee: GUANGDONG MEIZHI COMPRESSOR CO., LTD.
    Inventors: Fei Xu, Xiaohua Qiu, Liyu Zheng
  • Patent number: 11996733
    Abstract: A permanent magnet motor, a compressor and an air conditioner are disclosed. The permanent magnet motor has a stator and a rotor. The stator has a stator core and a stator winding. The rotor is spaced apart from the stator in an inner-outer direction. The rotor has a rotor core and a permanent magnet embedded in the rotor core. A maximum distance between an outer peripheral contour of a cross section of the rotor and a center of the cross section of the rotor is D1, an axial length of rotor core is L, and a rated power of permanent magnet motor is P. D 1, L and P satisfy: D1/L?1.7 and P/(D12×L)?8.5, and the unit of P is W, and the unit of D1 and L is cm.
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: May 28, 2024
    Assignee: GUANGDONG MEIZHI COMPRESSOR CO., LTD.
    Inventors: Zhengzhong Qiao, Linshu Mao, Xiaohua Qiu, Fei Xu, Yulong Wang
  • Patent number: 11933526
    Abstract: A compressor and a refrigeration device are disclosed. The compressor has a sealing container, a motor portion and a compressing mechanism portion, and a bypass valve. The motor portion and the compressing mechanism portion are both provided in the sealing container. The compressor has an exhaust side and a suction side spaced apart from each other. The exhaust side is connected to the bypass valve. The exhaust side is suitable for exhausting air to external parts through the bypass valve, or suitable for communicating with the suction side through the bypass valve.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: March 19, 2024
    Assignee: GUANGDONG MEIZHI COMPRESSOR CO., LTD.
    Inventor: Bin Gao
  • Publication number: 20240027280
    Abstract: A housing assembly, a compressor and an air conditioner are provided. The housing assembly has a housing, a temperature sensor and a fixing bracket. The temperature sensor abuts an outer wall of the housing. The fixing bracket has a fixing portion and connection portions located on two sides of the fixing portion. The connection portions are fixedly connected to the housing. A mounting cavity is formed between the fixing portion and the housing. The temperature sensor is located in the mounting cavity. The fixing portion has a top plate and side plates connected to two sides of the top plate. An angle formed between the top plate and each of the side plates is an obtuse angle. Each of the top plate and the side plates abuts the temperature sensor.
    Type: Application
    Filed: September 28, 2023
    Publication date: January 25, 2024
    Applicants: GUANGDONG MEIZHI PRECISION MANUFACTURING CO., LTD., GUANGDONG MEIZHI COMPRESSOR CO., LTD.
    Inventors: Yiqiang WANG, Fenggang FAN
  • Publication number: 20240019170
    Abstract: A housing assembly, a compressor, and an air conditioner are provided. The housing assembly has a housing, a temperature sensor, and a fixing bracket. The temperature sensor abuts an outer wall of the housing. The fixing bracket has a fixing portion and connection portions located on two sides of the fixing portion. Each connection portion is fixedly connected to the housing. A mounting cavity is formed between the fixing portion and the housing. The fixing portion has an inlet end for mounting the temperature sensor in the mounting cavity, and a top plate and two side plates connected to two sides of the top plate. An angle between the top plate and each of the two side plates is an obtuse angle. An opening slot facing away from the inlet end is formed on the top plate and is offset from a centerline of the top plate.
    Type: Application
    Filed: September 28, 2023
    Publication date: January 18, 2024
    Applicants: GUANGDONG MEIZHI PRECISION MANUFACTURING CO., LTD., GUANGDONG MEIZHI COMPRESSOR CO., LTD.
    Inventors: Yiqiang WANG, Fenggang FAN
  • Publication number: 20240011683
    Abstract: A method for manufacturing a liquid reservoir is disclosed. The method includes: preparing a barrel with an open upper end and an open lower end; press-fitting a partition plate into the barrel and welding the partition plate to the barrel by in-furnace brazing; arranging a valve core assembly in a predetermined position within the barrel and press-fitting a limit plate into the barrel to limit the valve core assembly; narrowing the upper end of the barrel to form an air inlet and narrowing the lower end of the barrel to form an air outlet; and coupling an air inlet tube to the air inlet and coupling an air outlet tube to the air outlet.
    Type: Application
    Filed: June 9, 2023
    Publication date: January 11, 2024
    Applicant: GUANGDONG MEIZHI COMPRESSOR CO., LTD.
    Inventors: Gaimin LI, Bin GAO, Qiang GAO
  • Patent number: 11867439
    Abstract: A stator assembly, an electronic expansion valve, and a refrigeration device are provided. The stator assembly has a housing, a coil assembly and a fixing member. An outer surface of the housing is provided with an installation opening. The coil assembly is provided in the housing, and has a shell for mounting a coil. The fixing member is inserted through the installation opening to be fixedly connected with the shell, and the is configured to connect with the conducting tube of the electronic expansion valve to electrically conduct the shell and the conducting tube.
    Type: Grant
    Filed: May 19, 2022
    Date of Patent: January 9, 2024
    Assignee: GUANGDONG MEIZHI COMPRESSOR CO., LTD.
    Inventors: Chao Chen, Longhua Huang, Mao Yang, Bo Jiang
  • Patent number: 11713911
    Abstract: A liquid reservoir, a method for manufacturing the liquid reservoir, and a compressor having the liquid reservoir are disclosed. The liquid reservoir has a barrel, an air inlet tube, an air outlet tube, and a valve. The valve has a partition plate arranged in the barrel. An outer periphery of the partition plate is coupled to an inner peripheral wall of the barrel to divide the internal space of the barrel into an air inlet chamber and an air outlet chamber. The partition plate has a valve hole communicating the air inlet chamber with the air outlet chamber. A limit plate is arranged in the air outlet chamber and at least partially spaced apart from the partition plate. An outer periphery of the limit plate is coupled to the inner peripheral wall of the barrel. The limit plate has a connection hole and a guide hole.
    Type: Grant
    Filed: November 18, 2021
    Date of Patent: August 1, 2023
    Assignee: GUANGDONG MEIZHI COMPRESSOR CO., LTD.
    Inventors: Gaimin Li, Bin Gao, Qiang Gao
  • Patent number: 11545864
    Abstract: An electric motor including a motor rotor and a motor stator including a stator core including a plurality of stator teeth spaced along a circumferential direction of the stator core, a plurality of coil groups, wherein each of the plurality of coil groups includes a plurality of coils wound on a corresponding stator tooth, and an incoming line terminal and an outgoing terminal both comprising a same number of coil ends, and two motor lead groups, wherein a number of the plurality of motor leads of each of the two motor lead groups is equal to a number of the plurality of coil groups, and wherein each of the plurality of motor leads is connected to one incoming line terminal or one outgoing line terminal of one corresponding coil group of the plurality of coil groups.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: January 3, 2023
    Assignee: GUANGDONG MEIZHI COMPRESSOR CO., LTD.
    Inventors: Fei Xu, Zhengzhong Qiao, Xiaohua Qiu
  • Patent number: 11486614
    Abstract: This present disclosure provides a compressor and a refrigeration device having the compressor. The refrigeration device has a coupling assembly and a frequency converter connected to one end of the coupling assembly. The compressor has a first shell and a permanent magnet motor. The permanent magnet motor is set in the first shell and connected to the other end of the coupling assembly. By designing the relevant parameters of the motor of the compressor, the efficiency of the motor and the compressor can be improved.
    Type: Grant
    Filed: May 6, 2020
    Date of Patent: November 1, 2022
    Assignee: GUANGDONG MEIZHI COMPRESSOR CO., LTD.
    Inventors: Zhengzhong Qiao, Fei Xu, Xiaohua Qiu, Linshu Mao, Chaocong Liu
  • Publication number: 20220290672
    Abstract: A compressor and a refrigeration system are provided. The compressor has a shell, an air cylinder assembly and a pressure relief device. The shell has a containing cavity. The air cylinder assembly is disposed in the containing cavity, and has an air suction cavity and a pressure relief channel. The pressure relief channel communicates with the air suction cavity and the containing cavity, and has a pressure relief opening. The pressure relief device is connected with the air cylinder assembly. The pressure relief device moves in the axis direction of the pressure relief channel, so as to open or close the pressure relief opening.
    Type: Application
    Filed: May 26, 2022
    Publication date: September 15, 2022
    Applicant: GUANGDONG MEIZHI COMPRESSOR CO., LTD.
    Inventors: Bin GAO, Qiang GAO, Yanhai PENG, Gaimin LI
  • Publication number: 20220275868
    Abstract: A nut, an electronic expansion valve, a stop structure of the electronic expansion valve, and a refrigeration device are provided. The nut has a pipe body and a connection seat. An outer peripheral wall of a first end of the pipe body is provided with a limiting snap protrusion. The connection seat is connected to the first end of the pipe body. A first avoidance interval is provided between the limiting snap protrusion and the connection seat for installing a first stop of the spring guide rail.
    Type: Application
    Filed: May 20, 2022
    Publication date: September 1, 2022
    Applicant: GUANGDONG MEIZHI COMPRESSOR CO., LTD.
    Inventors: Longhua HUANG, Chao CHEN, Mao YANG, Bo JIANG
  • Publication number: 20220275985
    Abstract: A stator assembly, an electronic expansion valve, and a refrigeration device are provided. The stator assembly has a housing, a coil assembly and a fixing member. An outer surface of the housing is provided with an installation opening. The coil assembly is provided in the housing, and has a shell for mounting a coil. The fixing member is inserted through the installation opening to be fixedly connected with the shell, and the is configured to connect with the conducting tube of the electronic expansion valve to electrically conduct the shell and the conducting tube.
    Type: Application
    Filed: May 19, 2022
    Publication date: September 1, 2022
    Applicant: GUANGDONG MEIZHI COMPRESSOR CO., LTD.
    Inventors: Chao CHEN, Longhua HUANG, Mao YANG, Bo JIANG
  • Patent number: 11418081
    Abstract: A motor stator (11) for a compressor, a permanent magnet motor (10), and a compressor (A) are disclosed. The stator (11) includes: a stator core (111); a stator winding (112), the stator winding (112) including a plurality of coil groups, and each coil group having at least two connectors (1124); a lead-out wire (113) used to connect an external circuit and the stator winding (112), there being a plurality of lead-out wires (113) and each lead-out wire (113) being connected to connectors of at least two different coil groups, wherein the rated voltage between terminals on which a motor is mounted is Un, the maximum outer diameter of the stator core (111) is Dmax, and the axial length of the stator core (111) is L, Un/(Dmax2×L)?0.3 V/cm3.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: August 16, 2022
    Assignee: GUANGDONG MEIZHI COMPRESSOR CO., LTD.
    Inventors: Zhengzhong Qiao, Linshu Mao, Xiaohua Qiu, Yangbo Yu
  • Publication number: 20220112898
    Abstract: A baffle plate for a compressor, a compressor, and refrigeration apparatus are provided. The baffle plate has a plate body, a through hole and a connection part. The through hole is formed in the plate body. The plate body extends from the through hole in a direction deviating from the axis of the through hole. The connection part is connected with the plate body and is used for connecting the plate body to a non-rotating member. A fixed baffle plate is arranged in the compressor, to physically block the gas flow and form a space for stabilizing the refrigerant oil or lubricant oil on one side of the baffle plate corresponding to the oil sump. The space can isolate the disturbance from spiral flow of a lower cavity to the oil sump caused by the rotation of the motor when the compressor operates.
    Type: Application
    Filed: December 20, 2021
    Publication date: April 14, 2022
    Applicant: GUANGDONG MEIZHI COMPRESSOR CO., LTD.
    Inventors: Yang LI, Hongjun CAO, Song ZHU