Frequency conversion unit communication control method, device and frequency conversion unit system
A frequency conversion unit, communication control technology, applied in the direction of mechanical equipment, etc., can solve the problem of poor working reliability of the frequency conversion unit, and achieve the effect of strong work reliability
Active Publication Date: 2020-08-07
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology
[0004] Based on this, it is necessary to provide a communication control method and device for a frequency conversion unit and a system of a frequency conversion unit for the problem of poor reliability of the traditional frequency conversion unit.
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[0025] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Preferred embodiments of the application are shown in the accompanying drawings. However, the present application can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the application more thorough and comprehensive.
[0026] see figure 1 , a communication control method for a frequency conversion unit, including step S300 and step S400. Step S300, when a communication failure occurs with the main control board of the external unit of the frequency conversion unit, it is judged whether the communication failure can be recovered.
[0027] Specifically, the frequency conversion unit mainly includes an external machine and an internal machine, wherein the...
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The invention relates to a frequency conversion unit communication control method and device and a frequency conversion unit system. When communication failure appears between an outer unit master control board and an outer unit driving board of a frequency conversion unit, the outer unit driving board judges whether the communication failure can be recovered, and when the communication failure cannot be recovered, communication connection between a sensing device and the outer unit driving board and communication connection between the inner unit main board and the outer unit driving board are built, the inner unit main board directly communicates with the outer unit driving board, under control of the inner unit main board, the outer unit driving board can output fixed-frequency controlsignals, and it ensured that the frequency conversion unit can continuously run. Through the communication control method and device of the frequency conversion unit and the frequency conversion unitsystem, when failures appear between the outer unit main control board and the outer unit driving board of the frequency conversion unit, the mode is directly converted into the fixed frequency running mode, unit continuous running is ensured, non-shutdown control over the frequency conversion unit can be achieved, and compared with a traditional frequency conversion unit, the higher work reliability is achieved.
Description
technical field [0001] The present application relates to the technical field of air conditioners, and in particular to a communication control method and device for a frequency conversion unit and a system of a frequency conversion unit. Background technique [0002] An air conditioner is a device that provides people with a comfortable living environment by adjusting air temperature, humidity, and air velocity. According to the different output power, air conditioner units can be divided into frequency conversion units and fixed frequency units. The outdoor unit of the frequency conversion unit is equipped with the main control board of the external unit and the driving board of the external unit. When the driving board of the external unit receives the start-up command sent by the main control board of the external unit and the frequency-up / down command, it will control the fan and compressor of the air conditioner. Start and run at a given speed, so as to realize the fr...
Claims
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IPC IPC(8): F24F11/32F24F11/61F24F11/58
CPCF24F11/32F24F11/58F24F11/61
Inventor 郑晓娜贺小林李洋刘文斌
Owner GREE ELECTRIC APPLIANCES INC