CN104763658B

CN104763658B - Fan

Info

Publication number: CN104763658B
Application number: CN201510107735.9A
Authority: CN
Inventors: 陈芳林; 林培福; 林景祥
Original assignee: ALLE ELECTRONICS CO Ltd FUJIAN
Current assignee: ALLE ELECTRONICS CO Ltd FUJIAN
Priority date: 2015-03-12
Filing date: 2015-03-12
Publication date: 2017-04-26
Anticipated expiration: 2035-03-12
Also published as: CN104763658A

Abstract

The invention discloses a fan. The fan comprises a lower wind channel, a wind wheel, an upper wind channel and a motor. The lower wind channel comprises a bowl-shaped cavity accommodation portion and an upper opening and a lower opening which are communicated with the bowl-shaped cavity. The wind wheel is hung in the air in the bowl-shaped cavity and comprises a hub and a plurality of wind wheel blades which are arranged on the outside wall of the hub and are inclined. The hub is fixed with the motor. The upper wind channel comprises a ring assembled at the upper opening of the lower wind channel and isodiametric with the upper opening. A plurality of wind guide blades are arranged on the inside of the accommodation portion, the two adjacent wind guide blades form wind outlet gaps, and the extending direction of the air outlet gaps from the lower end of the accommodation portion to the upper end of the accommodation portion is identical to the air outlet direction of rotation wind formed by the wind wheel. The fan has the advantages of being strong in wind force, small in noise, smooth in outlet wind and the like.

Description

Blower fan

Technical field

The present invention relates to a kind of blower fan, refer in particular to that a kind of wind-force more violent, noise is less and air-out smoothly blower fan.

Background technology

Blower fan is a kind of driven fluid machinery, its mechanical energy by input, improves gas pressure and transfers out gas. Blower fan is of wide application, be such as used for the ventilation of factory, mine, tunnel, cooling tower, vehicle, ship and building, dust discharge and Cooling；The ventilation of boiler and industrial furnace and air inducing；Cooling and ventilation in the apparatus of air conditioning and domestic electric appliance；Corn Drying and select and recommend；Inflation and propulsion of wind-tunnel wind regime and aircushion vehicle etc..Existing blower fan major defect is that noise is big, air quantity Little, air quantity is little, it is impossible to adapt to Wind Volume, and the application scenario of high pressure, blower fan overall structure can not meet the requirement of client.

In view of this, the present inventor for above-mentioned blower fan structure design on do not attain improve institute caused by it is many disappearance and not Just, and deeply conceive, and actively research improvement has a fling at and develops and design this case.

The content of the invention

It is an object of the invention to provide a kind of blower fan, which can form rotary wind, and negative pressure, wind-force more violent, noise is less And air-out is more smooth.

In order to reach above-mentioned purpose, the solution of the present invention is：

A kind of blower fan, which includes lower air duct, wind wheel, upper air duct and motor；The lower air duct has the appearance of bowl-shape cavity Put portion and connect upper shed and the under shed of bowl-shape cavity；The wind wheel is vacantly arranged in bowl-shape cavity, and have wheel hub and Multiple to be arranged at wheel hub lateral wall and inclined wind wheel blade, the wheel hub is fixed with motor；The upper air duct have be mounted on At the upper shed of lower air duct and the annulus isometrical with upper shed；The holding part medial surface is provided with multiple inclined wind guide vanes Piece, wind blade described in adjacent two form air-out breach, and the air-out breach is by holding part lower end to holding part upper end extension side It is identical to the air-out direction that rotary wind is formed with wind wheel.

The wind blade is made up of the arc-like sheet that holding part medial wall extends internally, arc-like sheet described in two and holding part Medial wall junction is curved line, and two curved line two ends connect to form the wind blade with respect to holding part above-below direction respectively Two points, and the relative intersection for extending of arc-like sheet described in two forms pointed cone portion.

It is to seamlessly transit between the pointed cone portion and two arc-like sheets.

It is to seamlessly transit between arc-like sheet described in two and holding part medial wall.

Arc-like sheet described in two forms recessed groove in holding part lateral wall.

The incline direction of the wind wheel blade forms the air-out direction of rotary wind conversely, inclining for the wind blade with wind wheel Tilted direction is identical with the incline direction of wind wheel blade.

The under shed is the ring-shaped base of a necking down, and the ring wall of the ring-shaped base has aduncate first arc Portion；The wind wheel blade bottom is mounted on one with the spaced ring-type pedestal of ring-shaped base, the ring wall of the ring-type pedestal With aduncate second curved portions.

The wind wheel is integrated injection mo(u)lding.

The vacantly accommodating internal ring of a power supply machine is formed in the annulus of the upper air duct, is formed between the internal ring and annulus Inclined upper air duct blade, the incline direction of the upper air duct blade are identical with the incline direction of wind wheel blade.

Fixed structure is provided between the lower air duct and upper air duct, the fixed structure is included and is convexly equipped in described housing Screw on the outside of portion, it is convexly equipped on the outside of the annulus and through hole corresponding with screw and bolt；Bolt is locked in spiral shell through through hole In hole.

After using said structure, when in use, motor belt motor wind symptom wheel is rotated counterclockwise blower fan of the present invention, and outside wind is by leeward The under shed in road enters space between each wind wheel blade, and forms rotary wind by the wind wheel for rotating, then by each adjacent wind blade The air-out breach of formation is directed at upper air duct, and is derived by upper air duct；Due to air-out breach of the present invention by holding part lower end to accommodating The air-out direction that portion upper end bearing of trend forms rotary wind with wind wheel is identical, reduces the resistance of air-out process so that air-out is more suitable Freely, wind is allowed to form rotary wind（Tornado）, and bigger negative pressure can be formed, wind-force more violent, noise is less.

Description of the drawings

Fig. 1 is the structural representation one of blower fan of the present invention；

Fig. 2 is the structural representation two of blower fan of the present invention；

Fig. 3 is the decomposing schematic representation of blower fan of the present invention；

Fig. 4 is the section view axial direction schematic diagram of blower fan of the present invention；

Fig. 5 is the cross-sectional plane schematic diagram of blower fan of the present invention；

Fig. 6 is the structural representation of the lower air duct of blower fan of the present invention.

Symbol description

1 wind wheel of lower air duct, 2 upper air duct 3

4 bowl-shape cavity of motor, 11 holding part 12

13 under shed of upper shed, 14 wind blade 15

16 arc-like sheet of air-out breach, 151 pointed cone portion 152

153 recessed groove of point, 154 wheel hub 21

22 annulus of wind wheel blade, 31 ring-shaped base 141

First curved portions, 142 ring-type pedestal, 221 second curved portions 222

32 upper air duct blade of internal ring, 33 screw 121

311 counter clockwise direction X air-out gap extension direction Y of through hole.

Specific embodiment

In order to technical scheme is explained further, the present invention is explained in detail below by specific embodiment State.

Fig. 1 to Fig. 6 is referred to, present invention is disclosed a kind of blower fan, which includes lower air duct 1, wind wheel 2, upper air duct 3 and electricity Machine 4；The lower air duct 1 has the holding part 12 of bowl-shape cavity 11 and the upper shed 13 for connecting bowl-shape cavity 11 and under shed 14； The wind wheel 2 is vacantly arranged in bowl-shape cavity 11, and has wheel hub 21 and multiple 21 lateral walls of wheel hub and inclined of being arranged at Wind wheel blade 22, the wheel hub 21 are fixed with motor 4；The upper air duct 3 have be mounted at the upper shed 13 of lower air duct 1 and with The isometrical annulus 31 of upper shed 13；12 medial surface of the holding part is provided with multiple inclined wind blades 15, described in adjacent two Wind blade 15 forms air-out breach 16, the air-out breach 16 by 12 lower end of holding part to 12 upper end bearing of trend of holding part with The air-out direction that wind wheel 2 forms rotary wind is identical.

When in use, counterclockwise (direction as shown in X in Fig. 3) rotates motor belt motor wind symptom wheel blower fan of the present invention, outside Wind enters space between each wind wheel blade 22 by the under shed 14 of lower air duct 1, and forms rotary wind by the wind wheel 2 for rotating, then by The air-out breach 16 that each adjacent wind blade 15 is formed is directed at upper air duct 3, and is derived by upper air duct 3；As air-out of the present invention lacks Mouthfuls 16 by 12 lower end of holding part to 12 upper end bearing of trend of holding part（The direction as shown in Y in Fig. 3, Fig. 6）Formed with wind wheel 2 and rotated The air-out direction of wind is identical, reduces the resistance of air-out process so that air-out is more smooth, allows wind to form rotary wind（Tornado）, and Bigger negative pressure can be formed, wind-force more violent, noise is less.

The wind blade 15 of blower fan of the present invention is made up of the arc-like sheet 151 that 12 medial wall of holding part extends internally, Arc-like sheet 151 described in two is curved line with 12 medial wall junction of holding part, and two curved line two ends connect to form described leading respectively Two points 153 of 15 12 above-below direction of relative holding part of air blade, and the 151 relative intersection shape for extending of arc-like sheet described in two Into pointed cone portion 152；The wind blade 15 of the present invention is almost shape, and the air-out breach 16 of formation is with narrow between the alleviating distention in middle-JIAO of two ends With respect to horn-like, rotary wind can be caused conveniently to enter air-out breach and derive air-out breach, allow wind to form rotary wind（Tornado）, And bigger negative pressure can be formed, wind-force is more violent, noise is less and air-out is more smooth.

It is to seamlessly transit between the pointed cone portion 152 of blower fan of the present invention and two arc-like sheets 151；Arc-like sheet 151 described in two It is to seamlessly transit between 12 medial wall of holding part；So that wind blade 15 will not be sharp, it is to avoid the rotation that cutting wind wheel 2 is formed Wind, causes air quantity to reduce.

Arc-like sheet 151 described in the two of blower fan of the present invention forms recessed groove 154 in 12 lateral wall of holding part, can save and make into This.

The incline direction of the wind wheel blade 22 of blower fan of the present invention and wind wheel 2 form the air-out direction of rotary wind conversely, The incline direction of the wind blade 15 is identical with the incline direction of wind wheel blade 22；Reduce the resistance of air-out process so that go out Wind is more smooth, allows wind to form rotary wind（Tornado）, and bigger negative pressure can be formed, wind-force more violent, noise is less.

The wind blade 15 of blower fan of the present invention is equidistantly spaced apart on the inside of lower air duct 1, the wind wheel blade 22 Equidistantly it is spaced apart on the outside of wind wheel 2, and there is between the wind blade 15 and wind wheel blade 22 spacing；The present invention can be made Blower fan produces uniform rotary wind, and equably can derive.

Ring-shaped base 141 of the under shed 14 of blower fan of the present invention for a necking down, the ring wall tool of the ring-shaped base 141 There are aduncate first curved portions 142；It is spaced with ring-shaped base 141 that 22 bottom of the wind wheel blade is mounted on one Ring-type pedestal 221, the ring wall of the ring-type pedestal 221 have aduncate second curved portions 222.

The wind wheel 2 of blower fan of the present invention is integrated injection mo(u)lding；2 molding of wind wheel of the present invention is simple, processing cost is low and Balance is easily corrected.

4 hanging accommodating internal ring 32 of a power supply machine is formed in the annulus 31 of the upper air duct 3 of blower fan of the present invention, it is described interior Inclined upper air duct blade 33 is formed between ring 32 and annulus 31；The incline direction and wind wheel blade of the upper air duct blade 33 22 incline direction is identical, and the upper air duct blade 33 is equidistantly spaced apart；The upper air duct blade 33 can make to form rotation Turn wind air-out more smooth, wind-force more violent, noise is less.

Fixed structure is provided between the lower air duct 1 and upper air duct 3 of blower fan of the present invention, the fixed structure is included Be convexly equipped in the screw 121 on the outside of the holding part 12, be convexly equipped on the outside of the annulus 31 and with 121 corresponding through hole 311 of screw And bolt；Bolt is locked in screw 121 through through hole 311；Facilitate the assembling between lower air duct 1 and upper air duct 3, disassemble.

The product form and style of above-described embodiment and accompanying drawing the non-limiting present invention, any art it is common Appropriate change or modification that technical staff is done to which, all should be regarded as the patent category without departing from the present invention.

Claims

1. a kind of blower fan, it is characterised in that:Include lower air duct, wind wheel, upper air duct and motor；The lower air duct has bowl-shape sky Upper shed and the under shed of the holding part and the bowl-shape cavity of connection in chamber；The wind wheel is vacantly arranged in bowl-shape cavity, and is had Wheel hub and it is multiple be arranged at wheel hub lateral wall and inclined wind wheel blade, the wheel hub is fixed with motor；The upper air duct has It is mounted on annulus at the upper shed of lower air duct and isometrical with upper shed；The holding part medial surface is provided with multiple inclined lead Air blade, wind blade described in adjacent two form air-out breach, and the air-out breach is prolonged to holding part upper end by holding part lower end It is identical with the air-out direction that wind wheel forms rotary wind to stretch direction；The wind blade is two to be extended internally by holding part medial wall Arc-like sheet is constituted, and arc-like sheet described in two is curved line with holding part medial wall junction, and two curved line two ends connect to be formed respectively Two points of the wind blade with respect to holding part above-below direction, and the relative intersection for extending of arc-like sheet described in two forms point Tapering；The under shed is the ring-shaped base of a necking down, and the ring wall of the ring-shaped base has aduncate first curved portions； The wind wheel blade bottom is mounted on one with the spaced ring-type pedestal of ring-shaped base, and the ring wall of the ring-type pedestal has Aduncate second curved portions.

2. blower fan as claimed in claim 1, it is characterised in that：It is to seamlessly transit between the pointed cone portion and two arc-like sheets.

3. blower fan as claimed in claim 1, it is characterised in that：It is smoothed between arc-like sheet described in two and holding part medial wall Cross.

4. blower fan as claimed in claim 1, it is characterised in that：Arc-like sheet described in two forms recessed groove in holding part lateral wall.

5. blower fan as claimed in claim 1, it is characterised in that：The incline direction of the wind wheel blade forms rotary wind with wind wheel Air-out direction is conversely, the incline direction of the wind blade and the incline direction of wind wheel blade are identical.

6. blower fan as claimed in claim 1, it is characterised in that：The wind wheel is integrated injection mo(u)lding.

7. blower fan as claimed in claim 1, it is characterised in that：Form what a power supply machine was vacantly housed in the annulus of the upper air duct Internal ring, is formed with inclined upper air duct blade, the incline direction and wind wheel of the upper air duct blade between the internal ring and annulus The incline direction of blade is identical.

8. blower fan as claimed in claim 1, it is characterised in that：Fixed structure, institute are provided between the lower air duct and upper air duct State fixed structure include be convexly equipped on the outside of the holding part screw, be convexly equipped on the outside of the annulus and corresponding with screw logical Hole and bolt；Bolt is locked in screw through through hole.