CN2789475Y

CN2789475Y - Improved fan balde structure

Info

Publication number: CN2789475Y
Application number: CNU2005200058140U
Authority: CN
Inventors: 张本熖
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-03-09
Filing date: 2005-03-09
Publication date: 2006-06-21
Anticipated expiration: 2015-03-09

Abstract

The utility model discloses a modified fan vane structure. A plurality of vanes are arranged on a body, wherein the zigzag degree the vane is similarly in an S shape, and the outer edge of the vane is provided into an arc line to reduce wind-choking and current-disturbing and to decrease the noise caused by resonance, which enhances revolving power to enhance fan speed in order to enhance wind force and gain economical benefit.

Description

Improved fan blade structure

Technical field

The utility model relates to a kind of improved fan blade structure, and it can improve known fan blade and produce the shortcoming of the caused noise of resonance because of choke and flow-disturbing, promotes economic benefit.

Background technique

Known fan blade 1, as shown in Figure 1, the equidistant some blades 12 of installing on a body 11, though this structural design can produce wind-force, because of some blades 12 for linarity designs, produce the caused noise of resonance so easily cause choke and flow-disturbing, cause noise pollution, reduce economic benefit.

Please consult shown in Figure 2 again, this back of the body formula fan blade 2, it installs some blades 22 of camber line a little that have on a body 21, though this structural design can produce wind-force, and a little effectively reduce flow-disturbing, but because of some blades 22 are the design of bent arc inadequately, and do not have the effect of choke and reduce the state of flow-disturbing weak effect, so, promptly easily cause choke and flow-disturbing and produce the caused noise that resonates also as the situation of above-mentioned known fan blade 1, and cause noise pollution, reduce its economic benefit.

Therefore, because the shortcoming and the inconvenience of above-mentioned known fan blade, the design people is adhering to research innovation, excelsior spirit, utilize its professional eye and professional knowledge, it is wider and meet the improved fan blade structure of industrial utilization to work out a kind of more practicality and application area.

Summary of the invention

The purpose of this utility model is to provide a kind of improved fan blade structure, it is the design of camber line by tortuosity like S-shaped blade and blade outer rim, reduce choke and flow-disturbing, and reduce the noise that causes because of resonance, improve rotary motive power and increase rotation speed of the fan, strengthen wind-force, and the economic benefit of promoting its practicability.

For achieving the above object, the utility model proposes a kind of improved fan blade structure, it installs the multi-disc blade on a body; Wherein: the tortuosity of described blade is like S-shaped, and the blade outer rim is made as camber line, to reduce choke and platform stream, reduces the noise that causes because of resonance, improves rotary motive power and increases rotation speed of the fan, and strengthen wind-force.

Described fan blade can be installed on blower, induced draft fan or the air conditioner.

Description of drawings

Fig. 1 is the stereogram of known fan blade;

Fig. 2 is the stereogram of another known fan blade;

Fig. 3 is a stereogram of the present utility model;

Fig. 4 is an enforcement illustration of the present utility model;

Fig. 5 is the operating state schematic representation of Fig. 4;

Fig. 6 is that blower of the present utility model is implemented illustration;

Fig. 7 is that induced draft fan of the present utility model is implemented illustration;

Fig. 8 is that air conditioner of the present utility model is implemented illustration.

The drawing reference numeral explanation:

1 known fan blade 1 body 12 blades 2 known fan blade

21 bodies, 22 blades, 3 fan blade, 31 bodies

311 jack-posts, 32 blades, 321 outer rims, 4 motors

41 axles, 5 blowers, 6 induced draft fans, 7 air conditioners

Embodiment

At first see also shown in Figure 3ly, fan blade 3 of the present utility model is installed plural pieces blade 32 on a body 31; Wherein: the tortuosity of this blade is like S-shaped, and blade 32 outer rims 321 are made as camber line, reducing choke and flow-disturbing, and reduces the noise that causes because of resonance, improves rotary motive power and increases rotation speed of the fan, strengthens wind-force.

Please consult Fig. 4 and shown in Figure 5 again, when the utility model is implemented in reality, finish assembling with the axle 41 of a motor 4 and jack-post 311 suits of body of the present utility model 31 central authorities are fixed, when motor 4 turns and drive blade 32, the air-flow that makes screw-in is along blade 32 and by fan-out, because of the tortuosity inlet air peristoma of this blade 32 is formed with camber line tangent plane 321 like S-shaped tangent plane and its outside line, make the back side of its blade 32 can reduce choke and flow-disturbing, the tortuosity of adding blade 32 can smaller angle like the camber line tangent plane 321 of S-shaped tangent plane and outer rim thereof and to introduce air-flow tangent, so produce noise because of resonance in the time of can reducing blade 32 rotations, and obtain maximum screw-in air quantity by the high rotary motive power of blade 32, and it is effectively concentrated fan-out, to reach the best exhausting and the effect of air-supply.

Please consult Fig. 6, Fig. 7 and shown in Figure 8 again, fan blade 3 of the present utility model can be installed in running on blower 5, induced draft fan 6 or the air conditioner 7.

Above disclosed explanation of thought and diagram, only be one of the utility model embodiment, when not limiting actual practical range of the present utility model with this, all according to the various conversion of being done on contained structure characteristic of above explanation and claim and the function, all should be covered by patent right scope of the present utility model.

Claims

1, a kind of improved fan blade structure, it installs the multi-disc blade on a body; It is characterized in that: the tortuosity of described blade is S-shaped, and the blade outer rim is made as camber line.