Other

Midea Group Co., Ltd.

Gd Midea Heating & Ventilating Equipment Co., Ltd.

Weilong Hu

Yongfeng Xu

Meibing Xiong

Xihua Ma

Shijian Yuan

Xiaosong Wang

Disclosed are a tube pure shear loading device and method. A first mandrel penetrates into a first half tube, and a second mandrel penetrates into a second half tube. The size of the first mandrel matches the size of the first half tube, and the size of the second mandrel matches the size of the second half tube. A first connecting portion of the first mandrel and a second connecting portion of the second mandrel are loaded, and a first protruding portion and a second protruding portion transmit a force to a to-be-tested tube, so that a material of a whole tube in the same plane as a right plane or a left plane of the first half tube and a left plane or a right plane of the second half tube is in a pure shear stress state.

Tube pure shear loading device and method

Disclosed are a method and a device for controlling refrigerant in an air conditioning system. The method includes: S1: comparing a superheat degree of each outdoor unit with an average superheat degree; S2: if the superheat degree of a present outdoor unit is higher than the average superheat degree, and a first different between the superheat degree of the present outdoor unit and the average superheat degree is greater than a present value, increasing a refrigerant amount entered into the present outdoor unit; and S3: if the superheat degree of the present outdoor unit is lower than the average superheat degree, and a second different between the average superheat degree and the superheat degree of the present outdoor unit is greater than the present value, decreasing the refrigerant amount entered into the present outdoor unit. Therefore, the refrigerant amount entered into each outdoor unit is adjusted from systemic overall perspective.

Method and device for controlling refrigerator in air conditioning system and air conditioning system

In an air conditioning system of the present disclosure, the controlling module determines state of the indoor unit. If the indoor unit is under off state, the controlling module determines whether an indoor temperature is smaller than a preset temperature. If yes, the controlling module controls the indoor unit to heat according to a first heating temperature. If the indoor unit is under heating state, the controlling module sets a second heating temperature of the indoor unit to the first heating temperature, and controls the indoor unit to heat according to the first heating temperature. The first heating temperature is smaller than the second heating temperature. If the indoor unit is under cooling state, the controlling module sets a first cooling temperature to a second cooling temperature which is greater than the first cooling temperature, and controls the indoor unit to cool according to the second cooling temperature.

Air conditioning system and energy management method of air conditioning system

Growing community of inventors

Foshan, China

Weilong Hu