Air flow generation device for home use

Abstract

An air flow generation device for home use of the present invention comprises: a case which has a pair of internal spaces partitioned so as to face each other in a mutually separated state side by side in a lengthwise direction, wherein suction holes and discharge holes are respectively formed in the spaces, and opening holes communicated with the discharge holes are formed between the spaces; and a pair of rotation parts which are respectively and rotationally provided in the spaces so as to mutually and inversely rotate by the power of a motor such that outside air is discharged from the suction holes to the discharge holes, thereby having an air flow that pulls in an air current between the opening holes by generating a pressure difference of the discharge holes and the opening holes by air which is discharged through the discharge holes.

Description

technical field [0001] The present invention relates to a ceiling fan, and more specifically, provides a household airflow generating device that can be used indoors. The household airflow generating device rotates two rows of rotating fan blades that are opposed to each other in opposite directions, so that the household airflow generating device is in contact with the external space. Create a difference in air pressure to attract nearby airflow, thereby increasing the air volume and wind speed, so household airflow generators can be applied to kitchen hoods, ceiling fans or exhaust fans. Background technique [0002] Generally, household air flow generating devices that use air flow to provide convenience for life are applied to electric fans, ceiling fans, kitchen hoods, exhaust fans, and the like. [0003] First, an electric fan and a ceiling fan generally include a set of blades or vanes mounted so as to rotate around an axis, and a driving device that rotates the blade...

AI Technical Summary

Problems solved by technology

[0017] However, the existing exhaust fan is inefficient and increases noise because the turning blades 31 of the rotating parts 30 only rotate against the wind.

[0018] That is, the wind volume and wind pressure caused by the rotation of the steering blade 31 do not conform to the current situation, and the power of the drive motor 20 is also limited by the miniaturization and low capacity.

[0019] More specifically, in the case of using turning vanes, the efficiency due to the wind pressure on the opposite side of the wind pressure increases will decrease, so in order to generate a predetermined amount of air volume, it is necessary to rotate the rotating parts at high speed, which will increase the noise

[0020] Not only that, since the turning vane 31 wraps the inhaled indoor air and moves toward the outlet 13, when the turning vane rotates, an anti-lift force (resistance to the lift force) is generated, and the wind after subtracting the anti-lift force from the turning force The power is discharged to the outside, so the air volume and air pressure are reduced, resulting in low efficiency of the instrument

[0021] As a result, there is a problem of increased noise when rotating at high speeds

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