Air conditioning system

Abstract

The invention discloses an air conditioning system which comprises an indoor unit, an outdoor unit and a display device. An outdoor unit circuit board is arranged in an outdoor unit electrical box; the outdoor unit circuit board is configured to carry out electrical box filth blockage detection when receiving an electrical box filth blockage detection instruction, i.e., control an outer fan to rotate at a preset rotating speed; detect a wind speed value of the surface of the outdoor unit circuit board in the electrical box; and judging a filth blockage detection result of the electrical box according to the detected wind speed value; and after the outdoor unit circuit board judges the filth blockage detection result, a display device is controlled to display the filth blockage detection result to timely remind a user to clean the interior of the electrical box, so that the service life of electronic components in the electrical box and the service life of the outdoor unit circuit board are greatly prolonged, normal and reliable operation of the air conditioner system is guaranteed, the maintenance cost is saved, and the user experience feeling is improved.

Description

technical field [0001] The invention relates to the technical field of household appliances, in particular to an air conditioning system. Background technique [0002] The outdoor unit of the multi-connected air conditioner is usually installed in outdoor locations such as the roof of the building and outside the building wall. The working environment is relatively harsh, and the internal substrate components of the electrical box of the outdoor unit mainly rely on air cooling for heat dissipation. After a long period of operation, the electrical A large amount of dust and foreign matter is usually accumulated inside the box and on the surface of the substrate, which may cause various abnormal faults such as reduced insulation of the substrate and electronic components, short circuit between lines, grounding, etc., and may even lead to the danger of electric shock. At the same time, too much dust covers the surface of the substrate for a long time, and in the case of humid a...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that there is no effective way to detect the dust in the electrical box of the outdoor unit in the prior art, the present invention provides an air conditioning system, by detecting the dust in the electrical box The wind speed value on the surface of the circuit board of the external unit is used to judge the detection result of the dirty blockage of the electrical box, and the detection result of the dirty blockage is displayed on the display device, and the user is reminded to clean it in time, which reduces the maintenance cost and prolongs the service life of the circuit board of the external machine

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