CN2298358Y - Electric fan - Google Patents

Abstract

The utility model relates to an electric fan, which comprises a motor, a controller and a plurality of blades. The utility model is characterized in one end of the blade is bent into a first plane portion; the other end of the blade is bent into a second plane portion and two prearranging bent angles in the reverse direction; the tail end of the second plane portion is pivoted with the fixing handle of one of the blades; the side edge of the blade is downwards stretched into an inclined portion for forming an acute angle with the blade. When the motor is rotated, air flows in the irregular multiple direction for reducing dead angle.

Description

A kind of electric fan

The utility model is a kind of design of electric fan.

The flabellum of general electric fan commonly used is that a flabellum is hubbed on the flabellum handle with a desired deflection angle when installing, make flabellum and ground form the angle of an acute angle, or make the flabellum side form the angle of a deflection in the pre-position of flabellum, in flabellum when rotation, is to air pressurized and make air quicken to flow, but it is on same plane air pressurized to be quickened all the time, because of flabellum is to rotate on a plane, the air that is accelerated only has a downward vector again.If the electric fan (as in the room) use in the certain space, the air velocity in the corner must be a lot of slowly than the air velocity below the flabellum.If be used in the cold air room, the required time of desiring to reach low than external temperature of mean temperature must be longer, and this is because an electric fan commonly used energy driven air scope is less.

The purpose of this utility model is to improve design at above-mentioned defective, makes air produce the air streams of different vectors under the driving of flabellum, obtains flowing in a big way.

Design proposal of the present utility model is: a kind of electric fan, comprise a motor, a controller and a plurality of flabellum, an end that it is characterized in that each flabellum is bent into one first planar surface portion, the other end oppositely is bent into one second planar surface portion and shape two predetermined bending angles, the tail end of this second planar surface portion is pivoted mutually with a flabellum fixed handle, downward projection one inclined plane part of the side of this flabellum and this flaabellum shape angle in an acute angle.

Be described further below in conjunction with embodiment of the present utility model and accompanying drawing thereof.

Fig. 1 is the utility model embodiment general structure and air flows schematic representation.

Fig. 2 is a flabellum shape schematic representation.

Fig. 3 is an A-A place sectional drawing among Fig. 2.

Electric fan shown in the drawings, comprise a motor M, one controller 10 and a plurality of flabellum 20, one end of this flabellum 20 is bent into one first planar surface portion 21, the other end oppositely is bent into one second planar surface portion 22 and forms two predetermined bending angle B and C, and downward projection one inclined plane part 23 of the side of this flabellum 20 and flabellum 20 form the angle α of an acute angle.The tail end 24 of second planar surface portion 22 of flabellum 20 is pivoted mutually with a flabellum fixed handle 30.

The foregoing description in the running, first planar surface portion 21 of flabellum 20 makes air produce a downward vectorial V1, its inclined plane part 23 makes air produce the vectorial V2 of a side direction, its second planar surface portion 22 makes air produce another downward vectorial V3, the synthetic vectorial V4 of the downward vectorial V1 and the vectorial V2 of side direction, so air is a non-ellipse and the irregular flow direction, shown in arrow among Fig. 1.Obviously, advantage of the present utility model is to make the scope of the air flow that the scope of air flow must produce than electric fan commonly used much bigger, can reduce the dead angle, uses in the cold air room, desires to reach whole uniform time of air temperature just can shorten.

Claims (1)

1. A kind of electric fan, comprise a motor, a controller and a plurality of flabellum, an end that it is characterized in that each flabellum is bent into one first planar surface portion, the other end oppositely is bent into one second planar surface portion and shape two predetermined bending angles, the tail end of this second planar surface portion is pivoted mutually with a flabellum fixed handle, downward projection one inclined plane part of the side of this flabellum and this flaabellum shape angle in an acute angle.

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