Fan, warm air blower and head shaking system, and control method of head shaking system

Abstract

The invention discloses a control method for a head shaking system. The head shaking system comprises a shell, a head shaking assembly, a magnet, a detection assembly, a head shaking rotating shaft and a two-way synchronous motor; the detection assembly is used for generating a midpoint detection signal when the magnet approaches; the control method comprises the following steps: judging whether the midpoint detection signal is detected within a first preset time; if the midpoint detection signal is not detected, increasing a count value; judging whether the count value reaches a preset threshold; if the count value reaches the preset threshold value, controlling the two-way synchronous motor to stop rotating; if the midpoint detection signal is detected, controlling the two-way synchronous motor to continue rotating in the original head shaking direction, and after a second preset time, controlling the two-way synchronous motor to rotate reversely to change the head shaking direction. According to the control method, the head shaking system can be controlled to work normally, and corresponding treatment can be performed in fault or abnormal situations, so that the stability of the system is improved. The invention also discloses the head shaking system, a fan and a warm air blower.

Description

technical field [0001] The invention relates to the technical field of household electrical appliances, in particular to a control method of an oscillating head system, an oscillating head system, a fan and a heater with the oscillating head system. Background technique [0002] At present, the more commonly used shaking head systems generally use Hall switches for midpoint detection, and use bidirectional synchronous motors to drive the shaking head components to rotate, so that the moving head components rotate to the left (right) at a fixed angle with the Hall switch as the center, and at During the working process of the oscillating head system, the controller needs to be able to accurately obtain the position information of the oscillating head assembly and control the rotation direction of the bidirectional synchronous motor. [0003] However, due to the complex structure of the oscillating head system, it is prone to failures such as magnet falling off and Hall switch...

AI Technical Summary

Problems solved by technology

[0003] However, due to the complex structure of the oscillating head system, it is prone to failures such as magnet falling off and Hall switch failure, as well as signal interference, artificially changing the position of the oscillating head assembly, and the actual position of the oscillating head assembly does not match the position judged by the controller. Abnormal conditions, and when these failures or abnormalities occur, because the shaking head system cannot judge these failures or abnormalities, it is impossible to take certain measures, which will cause more serious failures in the shaking head system

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