A music fan and its control method based on swinging leaves to change the wind

Abstract

The invention relates to a music fan based on swing blade air changing and a control method of the music fan based on swing blade air changing. The music fan comprises a power unit, a supporting unit, a humidification unit, a swing blade driving unit and a control unit; the power unit comprises two fan bodies and is located in the outer shell; the supporting unit comprises a supporting structure and the outer shell; moisture of the humidification unit is led into the outer shell through moisture inlet holes; the swing blade driving unit comprises a front beam, a back beam, a stepping linear lead screw motor, two polish shafts, eight screws, six swing shafts, six fixedly-connected pieces, six rotating shafts, nuts, separating plates, six connecting sheets and six swing blades. An open-loop control linear lead screw motor for converting electric pulse signals into linear displacement is used in the music fan. Under the non-overload condition, the rotating speed and the stopping position of the motor are only determined by the frequency and the pulse number of the pulse signals and are not influenced by load changes; the angular displacement amount is controlled by controlling the number of pulses, and the aim of accurate positioning is accordingly achieved.

Description

technical field [0001] The invention belongs to the technical field of electromechanical integration, and in particular relates to a music fan based on swinging leaves to change wind and a control method thereof. Background technique [0002] Household electric fans on the market mainly include ceiling fans, desk fans, and floor fans, which are mainly composed of fan motors, fan blades, front and rear grilles, connectors, swing mechanisms, bases, and switch control mechanisms. The rotation of the fan motor is controlled by the switch to drive the movement of the fan blades to achieve the effect of blowing air. At the same time, the fan blades can swing air supply within a certain range through the swing mechanism, or change the air supply direction by rotating the direction blades. [0003] There is also a floor fan with a humidifier on the market, which consists of a base, a support base, a fan head and a humidifier. The base and the support base are detachably connected; ...

AI Technical Summary

Problems solved by technology

There are combined electric fans with humidifiers at both ends in household appliances, but none of them realize the multi-angle swing of the swing blades of each fan to expand the windward side felt by the human body; at the same time, they do not pass the rising humid air through the ventilation duct Directly in front of the fan blades

[0004] There are also natural wind fans on the market, including fans, air humidifiers, bases, support rods, hinge swing mechanisms, folding mechanisms and control units; but they include 7 or 9 electric fans, which occupy a large volume; The swing mechanism includes multiple motors, bevel gears, and a relatively complex gear transmission mechanism, which has low reliability, high control requirements, high processing costs, and is difficult to actually produce; it uses a DC motor, which is difficult to determine the rotation position and has no practical application. feasibility

[0005] Existing electric fans have the following deficiencies: 1, the existing fans are generally in the form of single heads or double heads, but the double heads are double heads up and down, which cannot form a larger windward side in the horizontal direction; 2, the existing The wind blown by the fan is generally in the form of a wind column or a fan-shaped sweep of the wind column. There is no swinging of the front swing blades at different angles, and the effect of natural wind cannot be produced. Accepting such wind for a long time is not good for human health.

There is a natural wind fan that can blow out natural wind, but its bevel gear transmission mechanism has a complex structure; 3. The air volume of existing fans is generally fixed at a certain gear position, and there is no electric fan that can control the air volume through music

There is a sound-controlled fan, but it uses multiple DC motors, and the rotation position cannot be guaranteed

Moreover, the speed of the DC motor of the sound-controlled fan is high, and there is no corresponding speed change mechanism; 4. The existing electric fan generally selects gears and switches through buttons. Even if it has a remote control function, it can only control gears, switches, and downtime

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