Single-wire control fan and control method thereof

Abstract

The invention provides a single-line control fan and a control method thereof. The single-line control fan comprises a first main control board which is used for receiving the control of a user, and a second main control board; the second main control board is connected with the first main control board through a single signal line and two power lines; a main fan blade motor and at least one fan head movement motor are connected with the second main control board through wires so as to be independently driven and controlled by the second main control board. According to the single-line control fan and the control method thereof, the first main control board and the second main control board achieve signal transmission through the single signal line, the number of outgoing lines of the first main control board is reduced, wiring between the first main control board and the main fan blade motor and between the first main control board and the fan head movement motor is simplified, the wiring difficulty is lowered, the electromagnetic radiation caused by a plurality of long wire harnesses to the surrounding environment is reduced, and the cost of the first main control board can be reduced through an EMC test.

Description

technical field [0001] The invention relates to the technical field of fans, in particular to a single-line control fan and a control method thereof. Background technique [0002] An electric fan is a household appliance that uses a motor to drive the fan blades to rotate to accelerate the circulation of air. It is mainly used for cooling and relieving heat and circulating air. Widely used in homes, classrooms, offices, shops, hospitals and hotels and other places. [0003] In order to control the wind direction of the main fan blades in several dimensions, it is usually necessary to connect multiple wire harnesses between the main control board and the fan head, which will make wiring difficult, and poor contact of connectors or hidden breakage of wire harnesses often occur. line phenomenon. Moreover, each motor that controls the wind direction of the main fan blade is directly controlled by multiple pins on the main control board. Therefore, the main control board needs ...

AI Technical Summary

Problems solved by technology

[0003] In order to control the wind direction of the main fan blades in several dimensions, it is usually necessary to connect multiple wire harnesses between the main control board and the fan head, which will make wiring difficult, and poor contact of connectors or hidden breakage of wire harnesses often occur. line phenomenon

Moreover, each motor that controls the wind direction of the main fan blade is directly controlled by multiple pins on the main control board. Therefore, the main control board needs to be in working state all the time, which makes the main control board have many components, heavy tasks, and complicated programming. , resulting in high cost of the main control board

Furthermore, multiple long wire harnesses will also cause electromagnetic radiation to the surrounding environment, which is not conducive to the fan reaching the EMC test index

[0004] In today's Internet of Things era, the work of the main control board is too complicated, which is not conducive to the Internet of Things of the product

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