Gd Midea Heating & Ventilating Equipment Co., Ltd.

Other

Midea Group Co., Ltd.

Hefei Midea Heating & Ventilating Equipment Co., Ltd.

Yongfeng Xu

Meibing Xiong

Xihua Ma

Linxing Ren

Hongwei Li

Bo Li

Yongqiang Wan

Tiegang Zhang

Xiaolong Qian

Rufeng Chen

Wentao Shu

Yandong Wu

Wei Wang

Kongxiang Wu

Weilong Hu

Yunpeng Jiang

Chunlei Cui

Ruhan Wang

Boqi Liang

Qihui Bu

Shilong Dong

Shiqiang He

Tongbing Lao

Wen Ji Huang

Mingren Wang

Guozhong Yang

Yong Ni

Xiaohong Wu

Haowei Zhao

Zekun Liang

Weihong Luo

Xinli Wang

Mingkun Feng

Gen Li

Yongjie Pan

Langshui Huang

Shengsheng Liao

Guangpeng Zhang

Pengfei Hu

A control method, an air conditioner, and a computer readable storage medium. The control method is used for the air conditioner, and includes obtaining abnormal weather information of a region where the air conditioner is located, determining operating parameters of a draught fan of an outdoor unit in the air conditioner according to the abnormal weather information, and controlling the draught fan of the outdoor unit to operate according to the operating parameters.

Control method, air conditioner, and computer readable storage medium

The present application provides a fault risk analysis system, a fault risk analysis method, an air conditioner and a computer readable storage medium, and the fault risk analysis system comprises: a memory for storing computer programs; a processor for executing the computer programs to implement: obtaining debugging information and/or system operation information, and determining fault inducing factors corresponding to the debugging information and/or the system operation information; and adjusting a fault risk level of the fault category corresponding to the fault inducing factors according to the fault inducing factors. By collecting the debugging information, potential fault inducing factors of the current unit can be accurately reflected; by collecting the system operation information to analyze the fault inducing factors, the fault risk analysis system can obtain more accurate and reliable fault inducing factors.

Fault risk analysis system and method, air conditioner and computer readable storage medium

A filter, a manufacturing method for a filter, and an air conditioner are provided. The filter includes a casing, a transition tube, and a filter screen assembly. The filter screen assembly is provided in the casing, fitted with and connected to an inner wall of the casing, the casing is an integrally formed piece, and two axial ends of the casing have neck sections, and two neck sections are both fixedly connected to the transition tube.

Filter, manufacturing method for filter and air conditioner

A filter, a manufacturing method for a filter, and an air conditioner are provided. The filter includes a casing (), a transition tube (), and a filter screen assembly (). The filter screen assembly () is provided in the casing (), fitted with and connected to an inner wall of the casing (), the casing () is an integrally formed piece, and two axial ends of the casing () have neck sections (), and two neck sections () are both fixedly connected to the transition tube ().

An air conditioning system and a defrosting control method and device thereof including: obtaining defrosting exit time determined in previous defrosting, and controlling the air conditioning system to perform this defrosting according to the defrosting exit time determined in the previous defrosting; in this defrosting process of the air conditioning system, obtaining the temperature of an outdoor environment, and obtaining the temperature of an outlet of an outdoor heat exchanger; determining the temperature of the outdoor environment and the temperature of the outlet of the outdoor heat exchanger; and if the temperature of the outlet of the outdoor heat exchanger is lower than a first preset temperature and lasts a preset time and the temperature of the outdoor environment is lower than a second preset temperature, obtaining forced defrosting time serving as the defrosting exit time of the next defrosting of the air conditioning system, and storing the time.

Air conditioning system, and defrosting control method and device thereof

A temperature-sensing bulb support for an air-conditioner indoor unit, and an air-conditioner indoor unit are disclosed. The temperature-sensing bulb support includes: a support body. The support body is adapted to be fixed to a housing of the air-conditioner indoor unit. The support body defines a filter mesh positioning groove configured to accommodate an end frame bar of a filter mesh, and the support body further defines a temperature-sensing bulb accommodating groove configured to accommodate a temperature-sensing bulb. The temperature-sensing bulb accommodating groove is isolated from the filter mesh positioning groove by a partition wall, and the temperature-sensing bulb accommodating groove is located outside the filter mesh positioning groove. The temperature-sensing bulb is placed outside the filter mesh while protecting the temperature-sensing bulb, such that the temperature-sensing bulb can detect ambient temperature more accurately, aiding in increasing accuracy of control over the air-conditioner indoor unit.

Temperature-sensing bulb support for air-conditioner indoor unit, and air-conditioner indoor unit

A new fan and an anti-cold air control method and apparatus therefor, the method comprising the following steps: during the process of a new fan switching from a heating mode to a cooling mode, acquiring in real time the set temperature and air supply temperature of the new fan and the middle-portion temperature of the indoor heat exchanger of the new fan (S); acquiring the current output wind speed and the set wind speed of the new fan (S); and adjusting the output wind speed of the new fan on the basis of the set temperature, the air supply temperature, the middle-portion temperature of the indoor heat exchanger, the current output wind speed, and the set wind speed (S).

Method, device and non-transitory computer readable storage medium for HVAC and fresh air control

Disclosed are an air conditioning system and its pressure ratio control method and device. The method includes: acquiring an actual pressure ratio of the compressor every preset time period in operation of the air conditioning system; judging whether the actual pressure ratio is greater than or equal to the first pressure ratio corresponding to a current level; controlling the compressor to downshift one level for operation if the actual pressure ratio is greater than or equal to the first pressure ratio corresponding to the current level; further judging whether the actual pressure ratio is less than the second pressure ratio corresponding to the current level if the actual pressure ratio is less than the first pressure ratio corresponding to the current level; and controlling the compressor to upshift one level for operation if the actual pressure ratio is less than the second pressure ratio corresponding to the current level.

Air conditioning system and pressure ratio control method and device thereof

A multi-unit air conditioning system includes an outdoor unit, a first indoor unit, a second indoor unit, a third indoor unit, and a mode conversion device. The outdoor unit includes an outdoor-unit controller and a selector. The first indoor unit includes a first indoor-unit controller. The second indoor unit includes a second indoor-unit controller. The selector is configured to send a first selection signal or a second selection signal. The outdoor-unit controller is configured to control the outdoor unit, the first indoor-unit controller and the second indoor-unit controller to operate under a first control mode according to the first selection signal. The outdoor-unit controller is configured to control the outdoor unit, the first indoor-unit controller and the second indoor-unit controller to operate under a second control mode according to the second selection signal.

Multi-unit air conditioning system and a controlling method of multi-unit air conditioning system

Provided are a control method and control device of an air conditioner and an air conditioner. The control method of the air conditioner includes: when a starting capacity of an indoor unit is lower than or equal to a capacity threshold value and a low-voltage protection signal is received, an opening degree of an electronic expansion valve is adjusted. By applying the technical solution provided in embodiments of the present disclosure, when the starting capacity of the indoor unit is low, a shutdown of the air conditioner caused by a false alarm of the low-voltage protection signal due to the fact that an operating load of the air conditioner is low and the opening degree of the electronic expansion valve is low can be avoided, frequent false shutdown caused by the fact that the starting capacity of the indoor unit of the air conditioner is low is avoided, the reliability of the air conditioner can be effectively improved, and the comfort of a user for using the air conditioner is further improved.

Control method and control device of air conditioner and air conditioner

The control method and system for the variable-frequency compressor includes: acquiring an operation current and an operation frequency of the variable-frequency compressor; determining that the operation current is greater than or equal to a preset frequency-limited current, and reducing the operation frequency to a preset frequency-limited frequency so as to enable the variable-frequency compressor to enter a frequency-limited mode; detecting an operation current at the moment of the variable-frequency compressor every preset duration; determining that the operation current at the moment meets a preset up-conversion condition, and increasing an operation frequency at the moment of the variable-frequency compressor by a preset up-conversion frequency step size until the variable-frequency compressor retreating from the frequency-limited mode; and determining that the operation current at the moment does not meet the preset up-conversion condition, and controlling the variable-frequency compressor to maintain the operation frequency at the moment.

Control method and control system for variable-frequency compressor, and air conditioner

A method for controlling a multi-split air conditioner. The method includes detecting whether the degree of superheat of each outdoor unit meets a target requirement, if yes, determining whether a difference between an average exhaust temperature of each outdoor unit and an average exhaust temperature of an outdoor unit system reaches a preset value, if yes, comparing the size of the average exhaust temperature of each outdoor unit with the size of the average exhaust temperature of the outdoor unit system, according to the result between the size of the average exhaust temperature of each outdoor unit and the size of the average exhaust temperature of the outdoor unit system, controlling an electronic expansion valve to actuate to make the average exhaust temperature of each outdoor unit to approximate to the average exhaust temperature of the outdoor unit system.

Method for controlling multi-split air conditioner, multi-split air conditioner system, and computer-readable storage medium

The present disclosure provides a method for controlling a fresh air machine. The method for controlling the fresh air machine of an air-conditioner includes: determining whether a fault occurs in a return air temperature sensor of the fresh air machine when the fresh air machine operates normally; closing an internal valve corresponding to the fresh air machine and keeping a fan motor operating, when the fault occurs in the return air temperature sensor; determining whether a fault occurs in an delivery air temperature sensor of the fresh air machine; when the fault does not occur in the delivery air temperature sensor of the fresh air machine, obtaining an delivery air temperature of the fresh air machine and controlling the fresh air machine to operate again by using the obtained delivery air temperature as a new return air temperature. The present disclosure also provides a fresh air machine. The method for controlling the fresh air machine of the present disclosure may solve the problem that the fresh air machine cannot operate again when the fault occurs in the return air temperature sensor of the fresh air machine, thereby improving the usage experience of the user for the air-conditioner.

Method for controlling fresh air machine and fresh air machine

The present disclosure provides an air conditioner system and a control method for the same. The air conditioner system includes: a refrigeration system. A first port of a second four-way valve is connected to a pipeline between the first four-way valve and the indoor heat exchanger, and a second port of a second four-way valve is connected to a first position in a pipeline between the indoor heat exchanger and the outdoor heat exchanger. A first port of the first passage of an auxiliary heat exchanger is in communication with a fourth port of the second four-way valve, and a second port of the first passage is connected to a second position in a pipeline between the indoor heat exchanger and the outdoor heat exchanger.

Air conditioner system and a control method for the same

It is provided a cold-air-avoidance control method and apparatus of an indoor unit of a multi-split air conditioning system, the multi-split air conditioning system includes an outdoor unit and a plurality of indoor units, and the cold-air-avoidance control method includes: obtaining a saturation temperature corresponding to a high pressure of the outdoor unit; obtaining an entrance temperature and a return air temperature of a heat exchanger of each heating indoor unit, and controlling an operating status of the heating indoor unit according to the saturation temperature, the entrance temperature and the return air temperature. With the method according to the present disclosure, reliability and accuracy of controlling the heating indoor unit can be improved, such that the effect of the cold-air-avoidance control is improved, and a more comfortable heating process is provided.

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Foshan, China

Yongfeng Xu