Control mainboard for dehumidifying fresh air all-in-one machine

Abstract

The invention discloses a control mainboard for a dehumidifying fresh air all-in-one machine. The dehumidifying fresh air all-in-one machine comprises a control mainboard body with the type being WH500, an MCU is fixedly installed on the control mainboard body, the MCU is electrically connected with a first temperature sensor and a second temperature sensor which are fixedly installed on the control mainboard body through IIC, and the MCU is electrically connected with a first liquid level sensor, a second liquid level sensor, a compressor driving circuit, a drainage pump driving circuit and astepping motor driving circuit which are fixedly installed on the control mainboard body. According to the control mainboard for the dehumidifying fresh air all-in-one machine, design is reasonable,opening and closing of the machine is controlled wirelessly according to the actual needs conveniently, the trouble of wiring of traditional installation is avoided, and through arrangement of a direct current brushless motor driving circuit, the purposes of energy saving and noise reduction are achieved, through arrangement of the drainage pump driving circuit, the installation range of the control mainboard body is increased, and opening and closing of the compressor driving circuit is automatically controlled conveniently through the control mainboard body, a great deal of energy is saved,and the use requirements are met.

Description

technical field [0001] The invention relates to the technical field of control boards, in particular to a control board for a dehumidification and fresh air integrated machine. Background technique [0002] The control board of the existing dehumidification and fresh air all-in-one machine is mostly wired control. The function has been determined at the beginning of the design and cannot be expanded. Due to the single function, it has fewer interfaces and can only be wired with the machine. connection, which cannot meet the flexible application in more scenarios, and the control board of the existing dehumidification and fresh air all-in-one machine is mostly an AC motor with three-speed control. The motor speed will change with the increase of the load, which increases the noise of the machine while reducing the motor Lifespan, most of the control boards of the current dehumidifier and fresh air all-in-one machine do not support the automatic drainage and lifting function, ...

AI Technical Summary

Problems solved by technology

[0002] The control board of the existing dehumidification and fresh air all-in-one machine is mostly wired control. The function has been determined at the beginning of the design and cannot be expanded. Due to the single function, it has fewer interfaces and can only be wired with the machine. connection, which cannot meet the flexible application in more scenarios, and the control board of the existing dehumidification and fresh air all-in-one machine is mostly an AC motor with three-speed control. The motor speed will change with the increase of the load, which increases the noise of the machine while reducing the motor Lifespan, most of the control boards of the current dehumidifier and fresh air all-in-one machine do not support the automatic drainage and lifting function, which leads to the limitation of the installation scene, and cannot automatically turn off the dehumidification compressor in cold weather, resulting in a waste of energy and also causing the machine to generate ice. In the case of blockage, it cannot meet the needs of use, so we proposed a control board for the dehumidification and fresh air all-in-one machine to solve the above problems

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