GD MIDEA HEATING & VENTILATING EQUIPMENT CO., LTD.

A compressor assembly includes a first compressor, a second compressor, a first oil separator, a second oil separator, a storage container, a gas-liquid separator, a liquid balance pipe, and a gas balance pipe. The first compressor has a first air return port, and the second compressor has a second air return port. The first oil separator has a first oil outlet, the second oil separator has a second oil outlet, and the storage container has a refrigerant inlet, the first oil outlet and the second oil outlet both being in communication with the refrigerant inlet. The gas-liquid separator has a first gas separation outlet, a second gas separation outlet, a first oil return hole and a second oil return hole, the first gas separation outlet and the first oil return hole both being in communication with the first gas return port.

A leakage determination method includes receiving a refrigerant feedback signal sent by a refrigerant detection device and carrying refrigerant information obtained by the refrigerant detection device, and obtaining a first channel identifier corresponding to a transmission channel through which the refrigerant feedback signal is transmitted. The refrigerant detection device is configured to transmit different types of refrigerant information through different transmission channels. The method further includes, in response to a match between the first channel identifier and a second channel identifier corresponding to a refrigerant type designation of the air conditioner, determining whether refrigerant leakage exists in the air conditioner based on the refrigerant information obtained through the transmission channel corresponding to the second channel identifier.

An electric control box includes a box body and a mounting plate arranged in the box body. The mounting plate is provided with a fan and a plurality of electronic components at a mounting side of the mounting plate. The fan is configured to form first heat dissipation airflow flowing along a first heat dissipation path. The first heat dissipation airflow is diverted by an inner wall of the box body to form second heat dissipation airflow flowing along a second heat dissipation path. The first heat dissipation path and the second heat dissipation path are located at the mounting side of the mounting plate. The plurality of electronic components are distributed over the first heat dissipation path and the second heat dissipation path.

The present application discloses an axial flow wind wheel, including a wheel hub and blades; inner edges of the plurality of blades are connected to the wheel hub, and the blades are uniformly arranged at interval in a circumferential direction of the wheel hub; a suction surface of each blade is provided with rows of flow guide structures, and each row of flow guide structure includes flow guide ribs arranged along an arc corresponding thereto; and the arcs respectively corresponding to the rows of flow guide structures are concentric with an axis of the wheel hub, and are arranged at interval in a radial directional of the wheel hub. An air conditioner outdoor unit includes a heat exchanger, a driving motor, and the axial flow wind wheel.

An air conditioner outdoor unit, a refrigerant charging method, a device, and a storage medium are provided. The air conditioner outdoor unit includes a compressor, a one-way valve, a heat exchanger, and a first shutoff valve. The compressor has an output port connected to the heat exchanger through the one-way valve and an input port connected to the first shutoff valve. A first pipeline is arranged between the one-way valve and the heat exchanger. A second pipeline is arranged between the compressor and the first shutoff valve. Each of the first pipeline, the second pipeline, and the compressor is configured to contain a refrigerant.

An air conditioner, a control method, a control device, and a storage medium. The air conditioner includes an indoor fan, a live component, and an air pressure detection assembly. The indoor fan is in airflow communication with the live component via a first air duct. The air pressure detection assembly is configured to acquire a first air pressure of the indoor fan and a second air pressure of the first air duct, and to control energization and de-energization of the live component based on a difference between the first air pressure and the second air pressure. By disposing an air pressure switch between the air pressure detection assembly and the live component, the air pressure switch can detect a pressure difference in the first air duct.

An exhaust device includes a fan assembly and a volute assembly. The fan assembly includes an impeller including blades arranged at intervals in a circumferential direction of the impeller and each being of an arc shape, and a motor configured to drive the impeller to rotate to form an air flow. The volute assembly has a receiving cavity, and an air inlet and an air outlet in communication with the receiving cavity. The impeller is received in the receiving cavity. A rotation center of the impeller is located at the air inlet. The air outlet is located at a side of the volute assembly in a radial direction of the impeller. A chord length L of each of the plurality of blades, and a radius R, an inlet diameter D1, an outlet diameter D2, an axial width H of the impeller satisfy: 0.49≤L/R≤0. 56 , 0.48≤D1/D2≤ 0 . 62 , and 0.16≤H/D2≤ 0 . 26 .

A compressor assembly, an air conditioner outdoor unit, and an air conditioning system. The compressor assembly includes a first compressor, a second compressor, a first oil separator, a second oil separator, a first gas-liquid separator, a second gas-liquid separator, a liquid balance pipe, and a gas balance pipe. The first compressor has a first gas return port; the second compressor has a second gas return port; the first oil separator has a first oil outlet; the second oil separator has a second oil outlet; the first gas-liquid separator has a first separation chamber, a first separation gas inlet, a first oil return hole, and a first separation gas outlet; the second gas-liquid separator has a second separation chamber, a second separation gas inlet, a second oil return hole, and a second separation gas outlet.

An air conditioning system and an electric control box that includes: a box body, an electronic component, and a heat exchanger, wherein the box body is provided with a mounting cavity; the electronic component is provided inside the mounting cavity. The heat exchanger includes a heat exchange body and a collecting tube assembly; the collecting tube assembly is configured to provide a refrigerant flow for the heat exchange body; the heat exchange body is configured to dissipate heat of the electronic component; and a deflector provided below the heat exchanger is configured to collect condensate dripping from the heat exchanger. The electric control box is configured to collect the condensate generated by the heat exchanger to avoid short circuit of the electronic component.

A heat exchanger, an electric control box, and an air conditioning system. The heat exchanger includes a heat exchange body and a collecting tube assembly. Multiple micro-channels are disposed in the heat exchange body. The collecting tube assembly includes at least two collecting tubes. At least a portion of the micro-channels passes through one collecting tube of the at least two collecting tubes and are communicated with a remaining one of the at least two collecting tubes.