Gree Electric Appliances, Inc. of Zhuhai

Huawei Technologies Co., Limited

Tencent Technology (shenzhen) Company Limited

Gree Electric Appliances (wuhan) Co., Ltd

Gree Electric Appliances Technology Co., Ltd. of Zhuhai

Hua Liu

Zhiping Zhang

Tianyi Zhang

Hongbo Li

Yushi Bi

Rihua Li

Zhongkeng Long

Qiangjun Meng

Ruixing Zhong

Yuhui Chen

Qunbo Liu

Cong Cao

Longfei Li

Kang Xu

Yanhai Peng

Qiaoming Yang

Helong Zhang

Sheng Liu

Ke Xu

Shiqiang Zhang

Jianming Tan

Qi Cheng

Yaopeng Rong

Shuai Li

Sheng Wang

Chao Zhou

Jie Tang

Nan Jiang

Ying Zhang

Yungong Xu

Wenteng Ye

Jingli Qi

Bin Ma

Yi Ni

Wenqing Chen

Shuru Lin

Peisheng Chen

Mingsheng Zhuo

Xiaokun Wu

Ziwen Xing

Ziyuan Huang

Jian Hong Chen

Lianfa Wu

Tao Feng

Handong Xue

Limin Li

Wei Wang

Yuhai Su

Huaican Liu

Nengyi Pan

Peng Cao

Shiqiang Zhu

Mengmeng Jin

Bing Zhang

Yu Zhou

Xianquan Liu

Zhongqiu Zhang

Han Tang

Dongjun Sun

Yingsheng Fu

Fuhai Wang

Haili Hu

Hu Liang

Zhiliang Luo

Mingzhi Zhao

Shimin Liang

Yuying Sun

Dexing Duan

Furong Hou

Baoge Zhang

Zhaorui Zhao

Zongrong Zhou

Peisong Li

Weijun Zhou

Liang Duan

Xufeng Yang

Dongbing Hu

Qingxue Yue

Chunlian Wang

Zhihua Liu

Disclosed in the present invention are a zero-load output non-stop control method and apparatus, and a unit. The apparatus comprises: a three-way valve, provided at an exhaust port of a compressor; a mixing tank, provided between an air suction port of the compressor and a condenser and used for mixing a refrigerant discharged by the compressor with a refrigerant throttled by the condenser; a first electronic expansion valve, provided on a first pipeline from the condenser to the mixing tank and sued for controlling the amount of the refrigerant throttled by the condenser and entering the mixing tank; and an electromagnetic valve, provided on a second pipeline between the three-way valve and the mixing tank and used for controlling the amount of the refrigerant discharged by the compressor and directly entering the mixing tank.

Zero-load output non-stop control method and apparatus, and unit

A compressor, including: a first rotor being rotatable around a first axis, the first rotor including a first portion and a second portion; and a first shaft carrying the first portion and the second portion, the first shaft having a first end and a second end that are oppositely arranged. The first rotor is configured to be applied with a preset acting force in a direction from the first end toward the second end or from the second end toward the first end during rotation. The size of the compressor can be reduced with the displacement of the compressor remaining substantially unchanged.

Rotor assembly, compressor and air conditioner

A rotor assembly, a compressor and an air conditioner. The rotor assembly includes a first rotor, including a first working portion and a second working portion coaxially arranged, the first working portion and the second working portion are rotatable about a first axis; the first working portion includes a plurality of first helical blades, with a first blade groove being formed between adjacent two of the plurality of first helical blades; at least one first air pressure groove is provided on a first end face of the first working portion away from the second working portion.

The present disclosure provides a compressor and an air conditioner. The compressor includes a housing; a first rotating shaft mounted in the housing; a connecting assembly sleeved on the first rotating shaft; and a first rotor assembly including a first rotor and a second rotor coaxially disposed on the connecting assembly. The connecting assembly carries the first rotor and the second rotor to rotate about the first rotating shaft together. The connecting assembly is configured to limit the relative positions of the first rotor and the second rotor, such that there exists a clearance between the first rotor and the second rotor. The present disclosure can maintain a clearance between the first rotor and the second rotor without increasing the number of components of the compressor.

Compressor with two rotors coaxially disposed on a connecting assembly sleeved on the shaft that limits relative movement between them

The present disclosure relates to an air conditioner anti-frosting control method and apparatus. The air conditioner anti-frosting control method includes: acquiring a frosting map of a unit and a meteorological condition of an area where the unit is located, and calculating an average defrosting frequency of the unit according to the frosting map; determining a target defrosting frequency according to the average defrosting frequency; and determining a heat exchange temperature difference according to the target defrosting frequency, and controlling the unit to operate according to the heat exchange temperature difference.

Air conditioner anti-frosting control method and apparatus

A continuous heating control system and method, and an air-conditioning device. The system includes a defrosting solenoid valve () arranged on a bypass pipeline, wherein one end of the bypass pipeline is connected to an oil separator (), and the other end of the bypass pipeline is connected to an outdoor heat exchanger (); and a heating structure which is arranged at the bottom of a gas separator () and used for heating the gas separator ().

Continuous heating control system and method, and air-conditioning device

The present disclosure provides a compressor rotor, a compressor and a refrigerant circulation system. The compressor rotor includes: a motor rotor including a plurality of rotor sections, a locking rod, a compression unit rotating part and a locking member. The rotor sections are fixedly connected in an axial direction and are provided with an axial through hole and the locking rod penetrates through the axial through hole. The compression unit rotating part is located at the end part of the motor rotor and is connected to the locking rod. The locking member is configured to lock the compression unit rotating part on the locking rod. The locking rod, the compression unit rotating part and the locking member form a pressing structure which applies a pressure toward an axial inner side to the motor rotor.

Compressor rotor, compressor and refrigerant circulation system

The disclosure discloses a method and a device for controlling cylinder switching of a compressor, a unit and an air conditioning system. The method includes: determining whether the compressor needs to perform cylinder switching; if so, adjusting current operating frequency according to a system pressure difference so that both the adjusted operating frequency and the system pressure difference meet a cylinder switching condition of the compressor; and controlling the compressor to perform cylinder switching. At the moment, the system pressure difference and the operation frequency are stable, and would not interfere the compressor's maintaining of the single-cylinder or double-cylinder operation state, which guarantees the energy efficiency of the unit where the compressor is located, and improves the use experience of a user.

Compressor cylinder switching control method and device, unit and air conditioning system

Disclosed are a variable capacity compressor operation mode determination method and device, a variable capacity compressor and an air conditioner. The variable capacity compressor operation mode determination method includes: detecting a current value of a compressor at present as A1 before switching an operation mode of the compressor; detecting the current value of the compressor at present as A2 after switching the operation mode of the compressor and reaching a preset time; comparing A1 and A2, determining that the switching of the operation mode of the compressor is successful when a ratio relationship between A1 and A2 satisfies a preset condition, and determining that switching of the operation mode of the compressor is failed when the ratio relationship between A1 and A2 dissatisfies a preset condition.

Variable capacity compressor operation mode determination method and device, variable capacity compressor, and air conditioner

The present application discloses a cooling system and a control method thereof; the cooling system includes a compressor unit, a condenser, a first solenoid valve, a second solenoid valve, a first throttle valve and a frequency converter; the second solenoid valve and the first throttle valve are connected with the first solenoid valve in parallel after being connected in series with each other; the compressor unit, the condenser, the first solenoid valve and the frequency converter are connected in series to form a first cooling loop; the compressor unit, the condenser, the second solenoid valve, the first throttle valve and the frequency converter are connected in series to form a second cooling loop; and the frequency converter is internally provided with a temperature detection module and a heat exchange module.

Cooling system and control method therefor

The present disclosure relates to a control method and a control device of an air conditioning system, and an air conditioning system, and relates to the technical field of air conditioners: the method includes: determining whether piping length compensation is required; if the piping length compensation is required, acquiring one or more metric parameters; and determining a compensation value according to the one or more metric parameters, and adjusting an operating state of the air conditioning system according to the compensation value.

Control method and device of air conditioning system and air conditioning system

Provided is a rotor structure of a screw compressor and an inverter screw compressor with the same. The rotor structure includes: a female rotor including a female rotor body, wherein the female rotor body includes a plurality of female teeth, and a tooth profile is formed between tooth crests of two adjacent female teeth of the female rotor body, and the tooth profile is formed by sequentially connecting an arc segment ab an envelope bc, an arc segment cd, an arc segment de, an arc segment ea, an arc segment aafrom front to rear along a counterclockwise direction, wherein centers of the arc segment cd and the arc segment de are respectively located on both sides of the tooth profile.

Rotor structure of screw compressor and inverter screw compressor with same

The present disclosure relates to a centrifugal compressor and air conditioning equipment. The centrifugal compressor includes: a main shaft; a diffuser, provided with a first thrust bearing at one end away from a diffusion surface; a supporting assembly, provided with a second thrust bearing at one end facing towards the diffuser; and a thrust disk, configured to rotate together with the main shaft, located between the diffuser and the supporting assembly along an axial direction and provided with a thrust portion, a clearance between one side of the thrust portion and the first thrust bearing and a clearance between the other side of the thrust portion and the second thrust bearing being limited through mutual abutting of the diffuser and the supporting assembly.

Centrifugal compressor and air conditioning equipment

The present application discloses a control method and device of an air conditioning system, for solving the problem of ineffectively controlling the air supply amount of the air conditioning system in the related art. The disclosed control method includes performing at least one of: acquiring a current discharge air temperature of an air conditioning system and a current operating frequency of a fan, and controlling a compressor of the air conditioning system to adjust an operating frequency of the compressor according to the discharge air temperature and the current operating frequency of the fan; or acquiring a current return air temperature of the air conditioning system and a current operating frequency of the compressor, and adjusting an operating frequency of the fan according to the return air temperature and the current operating frequency of the compressor.

Control method and device for air conditioning system and air conditioning system

The present disclosure relates to a bearing supporting assembly and a machining method thereof, and a centrifugal compressor. The bearing supporting assembly includes: bearing supports, provided with through holes for mounting radial bearings; and a fixing plate, detachably mounted at one end of each of the bearing supports along an axial direction, sides, away from the bearing supports, of the fixing plates being configured to mount first thrust bearings.

Bearing supporting assembly and machining method thereof, and centrifugal compressor

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Guangdong, China

Hua Liu