公开(公告)号：US20210348785A1

公开(公告)日：2021-11-11

申请号：US17284100

申请日：2018-12-12

Applicant: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI

Inventor： Kai Yu ,  Yaopeng Rong ,  Ke Xu ,  Qunbo Liu ,  Yi Ni ,  Longfei Li

IPC: F24F11/30 ,  F24F11/64 ,  F24F11/86

Abstract: A method for controlling the power-on or power-off of an air conditioner is provided. The method includes the following steps: determining whether a variable capacity compressor of the air conditioner is in a standby single-cylinder operation state before starting the air conditioner, where the variable capacity compressor is configured to be switchable between a single-cylinder operation state and a dual-cylinder operation state; if so, starting the air conditioner; if not, switching the variable capacity compressor to the standby single-cylinder operation state, and then starting the air conditioner. With this control method, regardless of whether the air conditioner is shut down because the power supply of the unit is cut off or because a power-off signal is received, the air conditioner can be started in a single-cylinder operation state in the next startup, so that the operation state of the cylinder is always determined when starting the air conditioner.

公开(公告)号：US20210262713A1

公开(公告)日：2021-08-26

申请号：US17260585

申请日：2018-12-14

Applicant: Gree Electric Appliances, Inc. of Zhuhai

Inventor： Hua Liu ,  Qunbo Liu ,  Ke Xu ,  Longfei Li ,  Yaopeng Rong

IPC: F25B41/31 ,  F04D27/00 ,  F04B49/06 ,  F04B27/24 ,  F25B13/00

Abstract: A method and apparatus for controlling a compressor to switch a cylinder mode and an air conditioner system. The method for controlling a compressor to switch a cylinder mode includes: determining that a compressor is required to switch from a single-cylinder operation mode to a two-cylinder operation mode; determining whether a system pressure differential is within a first preset system pressure differential interval; if not, adjusting a system control parameter such that the system pressure differential is within the first preset system pressure differential interval; and controlling the compressor to switch from the single-cylinder operation mode to the two-cylinder operation mode.

公开(公告)号：US11835040B2

公开(公告)日：2023-12-05

申请号：US16972001

申请日：2018-12-22

Applicant: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI

Inventor： Kai Yu ,  Longfei Li ,  Qunbo Liu ,  Yi Ni ,  Ke Xu ,  Yaopeng Rong ,  Zhongqiu Zhang ,  Zhenjiang Zhao

IPC: F04B49/20 ,  F04B49/06 ,  F04B41/06 ,  F04C28/06 ,  F04B49/10 ,  F04B49/08 ,  F04B11/00 ,  F25B49/02 ,  F04C28/18

CPC classification number: F04B49/20 ,  F04B11/0041 ,  F04B41/06 ,  F04B49/065 ,  F04B49/08 ,  F04B49/106 ,  F04B2201/0207 ,  F04B2205/01 ,  F04B2205/05 ,  F04C28/065 ,  F04C28/18 ,  F25B49/022 ,  F25B2600/025

Abstract: A method and a device for controlling a capacity change of a compressor, and a smart home appliance. The method includes: determining whether a capacity of the compressor is required to be changed; if yes, determining an intermediate frequency; changing the capacity of the compressor while maintaining the operating frequency of the compressor at the intermediate frequency; and the maintaining the operating frequency of the compressor at the intermediate frequency reduces a sudden change in output of the compressor after the changing the capacity.

公开(公告)号：US11852132B2

公开(公告)日：2023-12-26

申请号：US17259578

申请日：2018-12-19

Applicant: Gree Electric Appliances, Inc. of Zhuhai

Inventor： Hua Liu ,  Ke Xu ,  Qunbo Liu ,  Longfei Li ,  Yaopeng Rong

IPC: F04B49/06 ,  F04B27/00 ,  F04B49/02 ,  F04C23/00 ,  F04C28/08 ,  F04C28/02

CPC classification number: F04B49/065 ,  F04B27/005 ,  F04B49/02 ,  F04C23/001 ,  F04C28/02 ,  F04C28/08 ,  F04B2203/0204 ,  F04B2205/07 ,  F04B2207/03 ,  F04B2207/703 ,  F04C2270/075 ,  F04C2270/095

Abstract: 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.

公开(公告)号：US11841150B2

公开(公告)日：2023-12-12

申请号：US17284100

申请日：2018-12-12

Applicant: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI

Inventor： Kai Yu ,  Yaopeng Rong ,  Ke Xu ,  Qunbo Liu ,  Yi Ni ,  Longfei Li

IPC: F24F11/64 ,  F25B1/10 ,  F24F11/30 ,  F24F11/86

CPC classification number: F24F11/30 ,  F24F11/64 ,  F24F11/86 ,  F25B1/10 ,  F25B2500/02 ,  F25B2500/26 ,  F25B2600/0251

Abstract: A method for controlling the power-on or power-off of an air conditioner is provided. The method includes the following steps: determining whether a variable capacity compressor of the air conditioner is in a standby single-cylinder operation state before starting the air conditioner, where the variable capacity compressor is configured to be switchable between a single-cylinder operation state and a dual-cylinder operation state; if so, starting the air conditioner; if not, switching the variable capacity compressor to the standby single-cylinder operation state, and then starting the air conditioner. With this control method, regardless of whether the air conditioner is shut down because the power supply of the unit is cut off or because a power-off signal is received, the air conditioner can be started in a single-cylinder operation state in the next startup, so that the operation state of the cylinder is always determined when starting the air conditioner.

公开(公告)号：US11808261B2

公开(公告)日：2023-11-07

申请号：US17285802

申请日：2018-12-14

Applicant: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI

Inventor： Hua Liu ,  Longfei Li ,  Handong Xue ,  Yi Ni ,  Yingsheng Fu ,  Yaopeng Rong ,  Zhongqiu Zhang ,  Qunbo Liu ,  Ke Xu

IPC: F04B51/00 ,  F04B25/00 ,  F04B49/06 ,  F04C23/00 ,  F04C28/06 ,  F04C28/08 ,  F04C28/28 ,  F04B41/00 ,  F04C18/356 ,  F04C18/344 ,  F04C28/02

CPC classification number: F04B51/00 ,  F04B25/005 ,  F04B49/065 ,  F04C23/001 ,  F04C28/065 ,  F04C28/08 ,  F04C28/28 ,  F04B41/00 ,  F04B2203/0201 ,  F04B2203/0204 ,  F04C18/344 ,  F04C18/356 ,  F04C28/02 ,  F04C2270/075 ,  F04C2270/095

Abstract: 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.

公开(公告)号：US20210270260A1

公开(公告)日：2021-09-02

申请号：US17259578

申请日：2018-12-19

Applicant: Gree Electric Appliances, Inc. of Zhuhai

Inventor： Hua Liu ,  Ke Xu ,  Qunbo Liu ,  Longfei Li ,  Yaopeng Rong

IPC: F04B49/06 ,  F04B27/00 ,  F04B49/02

Abstract: 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.