OIL RETURN CONTROL METHOD OF MULTI-FUNCTIONAL MULTI-SPLIT SYSTEM WITH DOUBLE FOUR-WAY VALVES

    公开(公告)号:US20220205692A1

    公开(公告)日:2022-06-30

    申请号:US17564360

    申请日:2021-12-29

    发明人: Min Zhou Hongbin Liu

    IPC分类号: F25B31/00 F25B13/00

    摘要: An oil return control method of a multi-functional multi-split system with double four-way valves. The multi-functional multi-split system includes an outdoor unit, at least one set of hydraulic modules and at least one set of indoor modules. When the multi-split system is switched from a normal operation mode to an oil return mode, a first four-way valve and a second four-way valve are powered down, and operation modes of each set of indoor modules and each set of hydraulic modules, the on/off state of fans of an indoor heat exchanger and a hydraulic heat exchanger, opening degrees of a first electronic expansion valve of the indoor heat exchanger and a first electronic expansion valve of the hydraulic heat exchanger, and the on/off state of a first electromagnetic valve and a second electromagnetic valve are correspondingly adjusted based on the previous operation modes.

    RECREATIONAL VEHICLE AIR CONDITIONER AND CONTROL METHOD THEREOF

    公开(公告)号:US20220176772A1

    公开(公告)日:2022-06-09

    申请号:US17545052

    申请日:2021-12-08

    发明人: Min Zhou Zhicheng Pu

    IPC分类号: B60H1/00

    摘要: An air conditioning unit and a control method. The control method includes the following: S1. detecting the operation status of an air conditioner; S2. acquiring, by photosensitive sensors, the sunlight conditions of a recreational vehicle in parking; and S3. adjusting, by a control module, air outlet areas of the air conditioning unit for the recreational vehicle according to the acquired sunlight conditions and the sunlight exposure side of the recreational vehicle in parking. The control method can adjust the air outlet areas of the air conditioner by checking the operation status of the air conditioner and acquiring the sunlight conditions of the recreational vehicle in parking through the photosensitive sensors, thereby improving the user's sense of comfort.

    Oil return control method of multi-functional multi-split system with double four-way valves

    公开(公告)号:US12025353B2

    公开(公告)日:2024-07-02

    申请号:US17564360

    申请日:2021-12-29

    发明人: Min Zhou Hongbin Liu

    IPC分类号: F25B31/00 F25B13/00

    摘要: An oil return control method of a multi-functional multi-split system with double four-way valves. The multi-functional multi-split system includes an outdoor unit, at least one set of hydraulic modules and at least one set of indoor modules. When the multi-split system is switched from a normal operation mode to an oil return mode, a first four-way valve and a second four-way valve are powered down, and operation modes of each set of indoor modules and each set of hydraulic modules, the on/off state of fans of an indoor heat exchanger and a hydraulic heat exchanger, opening degrees of a first electronic expansion valve of the indoor heat exchanger and a first electronic expansion valve of the hydraulic heat exchanger, and the on/off state of a first electromagnetic valve and a second electromagnetic valve are correspondingly adjusted based on the previous operation modes.

    DEFROSTING CONTROL METHOD OF MULTIFUNCTIONAL MULTI-SPLIT SYSTEM WITH DOUBLE FOUR-WAY VALVES

    公开(公告)号:US20220205695A1

    公开(公告)日:2022-06-30

    申请号:US17564333

    申请日:2021-12-29

    发明人: Min Zhou Hongbin Liu

    摘要: A defrosting control method of a multi-functional multi-split system with double four-way valves. The multi-functional multi-split system includes an outdoor unit, at least one set of hydraulic modules, and at least one set of indoor modules. When the multi-split system is switched from a normal operation mode to a defrosting mode, a first four-way valve and a second four-way valve are powered down, and operation modes of each set of indoor modules and each set of hydraulic modules, the on/off state of fans of an indoor heat exchanger and a hydraulic heat exchanger, opening degrees of a first electromagnetic valve of the indoor heat exchanger and a second electromagnetic valve of the hydraulic heat exchanger, and the on/off state of the first electromagnetic valve and the second electromagnetic valve are correspondingly adjusted based on the previous operation modes of each set of indoor modules and each set of hydraulic modules.

    Defrosting control method of multifunctional multi-split system with double four-way valves

    公开(公告)号:US11906221B2

    公开(公告)日:2024-02-20

    申请号:US17564333

    申请日:2021-12-29

    发明人: Min Zhou Hongbin Liu

    摘要: A defrosting control method of a multi-functional multi-split system with double four-way valves. The multi-functional multi-split system includes an outdoor unit, at least one set of hydraulic modules, and at least one set of indoor modules. When the multi-split system is switched from a normal operation mode to a defrosting mode, a first four-way valve and a second four-way valve are powered down, and operation modes of each set of indoor modules and each set of hydraulic modules, the on/off state of fans of an indoor heat exchanger and a hydraulic heat exchanger, opening degrees of a first electromagnetic valve of the indoor heat exchanger and a second electromagnetic valve of the hydraulic heat exchanger, and the on/off state of the first electromagnetic valve and the second electromagnetic valve are correspondingly adjusted based on the previous operation modes of each set of indoor modules and each set of hydraulic modules.

    KITCHEN AIR CONDITIONER AND CONTROL METHOD THEREOF

    公开(公告)号:US20220268448A1

    公开(公告)日:2022-08-25

    申请号:US17678566

    申请日:2022-02-23

    IPC分类号: F24C15/20 F24F5/00

    摘要: A kitchen air conditioner and a control method thereof, where the kitchen is equipped with a range hood, the air conditioner including a housing and a current detection device. An electric control board is disposed in the housing, and the current detection device is disposed outside the housing and electrically connected to the electric control board. The current detection device is used for detecting a current of the range hood and determining whether the range hood works.